Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 17

Waxing Crescent 29%

09:02

02:09

05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 OK
04 OK

Sun - Rise: 05:04, Set: 20:54, Transit: 12:59. Moon - Rise: 09:02, Set: 02:09. Civil Dark: 21:37 - 04:20. Nautical Dark: 22:37 - 03:19. Astro Dark: 00:23 - 01:24

Total Clouds (% Sky Obscured)

73
100
97
99
100
100
97
95
77
64
60
77
66
70
73
84
85
85
91
94
81
59
31
29

Low Clouds (% Sky Obscured)

72
100
97
99
100
100
97
93
71
52
28
27
20
26
30
21
26
16
20
19
5
8
9
19

Medium Clouds (% Sky Obscured)

14
22
18
16
10
23
6
6
9
10
43
63
47
60
36
43
25
16
21
20
9
9
4
2

High Clouds (% Sky Obscured)

2
2
1
6
3
3
4
13
20
27
38
61
45
31
58
79
81
83
88
92
80
55
26
15

ISS Passover

Visibility (miles)

10
10
10
10
10
10
9
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

12
33
10
9
7
11
29
38
36
36
43
44
33
43
42
19
10
9
4
3
4
2
0
0

Precipitation Amount (mm)

0.01
0.11
0.01
0.01
0.01
0.03
0.16
0.3
0.24
0.22
0.37
0.39
0.21
0.37
0.37
0.09
0.02
0.03
0.02
0.02
0.03
0.01
0
0

Wind Speed/Direction (mph)

8
8
8
8
8
9
10
10
10
10
10
10
9
9
9
8
7
6
6
7
7
7
7
7

Chance of Frost

Temperature (°C)

7
8
8
9
11
12
12
13
13
13
12
12
12
12
12
11
10
9
8
8
7
7
6
6

Feels Like (°C)

5
5
6
7
11
12
12
13
13
13
12
12
12
12
12
11
8
7
6
6
5
4
4
3

Dew Point (°C)

6
7
8
9
10
10
11
10
10
10
10
10
11
11
10
9
8
7
6
5
5
4
4
4

Relative Humidity (%)

92
95
95
97
95
92
90
87
84
84
88
90
90
89
88
86
86
86
85
83
84
84
86
88

Pressure (mb)

1001
1002
1003
1003
1004
1004
1004
1005
1006
1006
1006
1007
1007
1007
1008
1008
1009
1010
1010
1010
1010
1010
1011
1011

Ozone (du)

392
388
387
386
388
390
390
390
390
391
391
388
385
383
381
382
384
386
387
388
392
393
393
393

Tuesday 18

Waxing Crescent 39%

10:12

02:37

05 OK
06 Good
07 OK
08 OK
09 OK
10 OK
11 OK
12 OK
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 05:03, Set: 20:55, Transit: 12:59. Moon - Rise: 10:12, Set: 02:37. Civil Dark: 21:39 - 04:18. Nautical Dark: 22:39 - 03:17. Astro Dark: 00:34 - N/A

Total Clouds (% Sky Obscured)

14
9
13
24
18
31
24
28
42
53
69
62
86
89
97
98
97
98
99
98
93
93
91
81

Low Clouds (% Sky Obscured)

9
1
0
4
16
27
18
17
29
13
17
24
34
40
18
16
10
12
16
0
0
0
1
6

Medium Clouds (% Sky Obscured)

4
9
6
17
6
22
18
23
33
48
25
25
36
35
23
22
45
92
96
47
23
34
35
6

High Clouds (% Sky Obscured)

6
1
8
7
0
0
0
0
4
27
60
45
74
84
97
98
96
98
98
97
91
91
88
80

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
9
10
8
8
10
10
10
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

0
0
9
10
11
11
12
11
10
7
15
32
35
46
56
46
19
16
8
9
8
0
0
0

Precipitation Amount (mm)

0
0
0.01
0.02
0.04
0.06
0.07
0.07
0.07
0.05
0.12
0.28
0.3
0.46
0.62
0.51
0.18
0.2
0.08
0.09
0.06
0
0
0

Wind Speed/Direction (mph)

7
7
8
9
9
10
10
11
10
10
11
11
12
12
11
10
7
6
5
6
6
6
6
6

Chance of Frost

Temperature (°C)

5
6
7
8
10
11
12
13
14
15
15
14
14
13
12
11
10
9
8
8
8
7
7
7

Feels Like (°C)

3
3
4
6
8
11
12
13
14
15
15
14
14
13
12
11
8
8
7
6
6
5
5
5

Dew Point (°C)

4
5
6
8
9
10
10
10
10
9
9
10
10
10
10
9
8
7
7
6
6
6
6
6

Relative Humidity (%)

93
97
98
98
95
91
85
82
79
71
70
75
78
85
89
88
88
88
88
89
89
90
92
94

Pressure (mb)

1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015

Ozone (du)

392
390
390
390
390
390
392
393
393
392
391
390
389
388
392
393
394
395
395
396
396
396
396
396

Wednesday 19

First Quarter 50%

11:28

02:59

05 OK
06 OK
07 OK
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Good
02 Good
03 Good
04 Good

Sun - Rise: 05:02, Set: 20:57, Transit: 12:59. Moon - Rise: 11:28, Set: 02:59. Civil Dark: 21:40 - 04:17. Nautical Dark: 22:42 - 03:15. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

22
16
35
51
63
44
42
45
61
64
65
37
57
53
50
50
50
50
50
50
6
6
6
6

Low Clouds (% Sky Obscured)

15
15
35
50
63
37
35
36
57
61
59
15
34
18
30
30
30
30
30
30
6
6
6
6

Medium Clouds (% Sky Obscured)

7
8
7
3
5
23
24
25
26
21
23
33
38
42
40
40
40
40
40
40
1
1
1
1

High Clouds (% Sky Obscured)

7
0
0
0
0
1
6
9
4
2
0
2
19
30
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

4
5
9
14
21
31
43
43
42
45
29
16
19
18
12
6
4
4
3
2
1
2
2
3

Precipitation Amount (mm)

0.01
0.02
0.04
0.09
0.18
0.35
0.52
0.38
0.36
0.38
0.25
0.15
0.14
0.14
0.11
0.03
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.02

Wind Speed/Direction (mph)

6
7
7
8
9
10
11
12
13
13
14
13
13
13
10
8
6
5
5
6
6
6
6
7

Chance of Frost

Temperature (°C)

7
7
8
9
10
11
12
12
13
13
14
15
15
15
14
13
11
9
8
8
7
6
5
5

Feels Like (°C)

5
5
6
7
10
11
12
12
13
13
14
15
15
15
14
13
11
8
7
6
5
4
3
3

Dew Point (°C)

6
7
8
9
9
10
10
10
10
11
10
10
10
10
10
9
8
7
6
5
5
4
4
4

Relative Humidity (%)

97
100
100
99
95
91
87
86
85
84
78
72
71
71
74
78
82
85
87
87
86
90
91
95

Pressure (mb)

1015
1015
1016
1016
1017
1017
1017
1017
1018
1018
1018
1018
1019
1019
1019
1020
1021
1021
1022
1022
1021
1022
1022
1022

Ozone (du)

395
395
396
396
395
393
394
396
398
394
390
384
379
377
375
377
379
380
381
381
381
381
378
374

Thursday 20

Waxing Gibbous 61%

12:47

03:18

05 Good
06 OK
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 04:59, Set: 20:58, Transit: 12:59. Moon - Rise: 12:47, Set: 03:18. Civil Dark: 21:42 - 04:15. Nautical Dark: 22:44 - 03:12. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

6
6
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
42
42
42
42

Low Clouds (% Sky Obscured)

6
6
91
91
91
91
91
91
38
38
38
38
38
38
100
100
100
100
100
100
42
42
42
42

Medium Clouds (% Sky Obscured)

1
1
1
1
1
1
1
1
100
100
100
100
100
100
51
51
51
51
51
51
0
0
0
0

High Clouds (% Sky Obscured)

0
0
99
99
99
99
99
99
99
99
99
99
99
99
87
87
87
87
87
87
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
9
9
9
10
9
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

4
10
20
19
12
7
9
13
16
10
6
4
3
5
0
13
32
48
55
46
42
26
28
32

Precipitation Amount (mm)

0.04
0.08
0.1
0.09
0.05
0.04
0.1
0.15
0.26
0.19
0.11
0.06
0.05
0.04
0
0.05
0.22
0.33
0.37
0.24
0.29
0.35
0.43
0.35

Wind Speed/Direction (mph)

7
7
8
10
11
12
14
15
15
15
15
15
14
14
15
15
15
16
16
17
18
18
18
18

Chance of Frost

Temperature (°C)

5
5
7
9
11
12
13
14
15
15
15
14
13
12
13
12
11
11
10
10
10
10
10
10

Feels Like (°C)

2
3
4
6
11
12
13
14
15
15
15
14
13
12
13
12
11
11
10
10
10
10
10
10

Dew Point (°C)

5
5
7
8
10
10
10
10
9
9
8
8
8
9
9
10
9
9
9
9
9
9
9
9

Relative Humidity (%)

97
99
100
98
93
86
81
74
68
64
64
67
73
78
78
82
87
90
92
91
92
92
94
95

Pressure (mb)

1022
1022
1021
1020
1020
1019
1018
1018
1017
1017
1016
1015
1015
1015
1019
1019
1018
1017
1016
1015
1013
1012
1011
1009

Ozone (du)

370
369
363
365
367
368
366
363
367
365
362
360
359
358
336
333
333
334
335
336
342
349
353
359

Friday 21

Waxing Gibbous 72%

14:08

03:34

05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 OK
11 OK
12 OK
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 04:58, Set: 21:00, Transit: 12:59. Moon - Rise: 14:08, Set: 03:34. Civil Dark: 21:44 - 04:14. Nautical Dark: 22:46 - 03:10. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

42
42
21
21
21
21
21
21
76
76
76
76
76
76
91
91
91
91
91
91
100
100
100
100

Low Clouds (% Sky Obscured)

42
42
18
18
18
18
18
18
13
13
13
13
13
13
53
53
53
53
53
53
100
100
100
100

Medium Clouds (% Sky Obscured)

0
0
7
7
7
7
7
7
55
55
55
55
55
55
84
84
84
84
84
84
96
96
96
96

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
63
63
63
63
63
63
41
41
41
41
41
41
5
5
5
5

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

27
34
53
48
24
16
13
12
16
36
55
61
60
56
44
36
28
24
21
11
19
32
52
59

Precipitation Amount (mm)

0.21
0.21
0.35
0.28
0.17
0.15
0.12
0.1
0.11
0.26
0.38
0.41
0.31
0.23
0.18
0.13
0.08
0.06
0.04
0.02
0.02
0.04
0.13
0.22

Wind Speed/Direction (mph)

18
18
17
17
18
18
19
19
20
20
20
20
19
19
21
21
20
20
21
22
23
23
22
23

Chance of Frost

Temperature (°C)

10
10
10
11
11
12
14
15
15
15
14
12
11
11
12
12
11
11
10
10
10
10
10
10

Feels Like (°C)

10
10
10
11
11
12
14
15
15
15
14
12
11
11
12
12
11
11
10
10
10
10
6
6

Dew Point (°C)

10
10
10
10
10
10
10
11
11
12
12
11
11
10
9
10
9
9
9
9
9
9
10
10

Relative Humidity (%)

98
99
100
99
93
87
81
78
76
80
88
96
97
95
84
86
89
91
93
94
94
95
98
100

Pressure (mb)

1008
1008
1009
1008
1007
1007
1006
1005
1004
1003
1002
1002
1001
1000
999
999
998
998
997
997
996
996
996
995

Ozone (du)

365
368
365
366
367
370
372
372
368
368
366
366
365
365
367
368
369
369
369
368
368
368
368
367

Saturday 22

Waxing Gibbous 82%

15:31

03:51

05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 04:57, Set: 21:01, Transit: 12:59. Moon - Rise: 15:31, Set: 03:51. Civil Dark: 21:45 - 04:12. Nautical Dark: 22:49 - 03:08. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
88
88
88
88
88
88
51
51
51
51
51
51
46
46
46
46
46
46
33
33
33
33

Low Clouds (% Sky Obscured)

100
100
88
88
88
88
88
88
40
40
40
40
40
40
37
37
37
37
37
37
16
16
16
16

Medium Clouds (% Sky Obscured)

96
96
21
21
21
21
21
21
32
32
32
32
32
32
37
37
37
37
37
37
21
21
21
21

High Clouds (% Sky Obscured)

5
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
9
9
9

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
9
8
9
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

53
40
29
35
45
48
43
38
34
40
54
60
59
50
42
47
53
55
48
33
22
18
16
16

Precipitation Amount (mm)

0.18
0.09
0.06
0.09
0.17
0.23
0.22
0.18
0.18
0.25
0.38
0.44
0.29
0.14
0.11
0.14
0.21
0.25
0.2
0.12
0.07
0.04
0.03
0.03

Wind Speed/Direction (mph)

23
25
25
26
26
26
25
24
23
23
23
23
23
22
22
22
21
21
21
21
21
20
19
18

Chance of Frost

Temperature (°C)

10
10
10
11
11
12
12
13
13
14
13
13
12
11
11
11
11
11
11
10
10
10
10
10

Feels Like (°C)

6
10
10
11
11
12
12
13
13
14
13
13
12
11
11
11
11
11
11
10
10
10
10
10

Dew Point (°C)

10
10
10
11
11
11
12
12
12
12
12
12
12
11
10
10
10
10
9
9
9
9
9
9

Relative Humidity (%)

100
99
100
99
99
98
97
95
92
91
94
97
99
97
95
94
94
93
93
93
91
90
91
92

Pressure (mb)

995
995
995
995
996
996
997
998
998
999
999
1000
1000
1000
1000
1001
1002
1002
1003
1003
1003
1004
1004
1004

Ozone (du)

367
366
365
364
363
362
362
362
363
362
362
362
362
362
363
364
366
367
368
369
370
371
373
373

Sunday 23

Waxing Gibbous 90%

16:57

04:08

05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 04:55, Set: 21:03, Transit: 13:00. Moon - Rise: 16:57, Set: 04:08. Civil Dark: 21:47 - 04:11. Nautical Dark: 22:51 - 03:06. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

33
33
81
81
81
81
81
81
98
98
98
98
98
98
100
100
100
100
100
100
84
84
84
84

Low Clouds (% Sky Obscured)

16
16
81
81
81
81
81
81
23
23
23
23
23
23
100
100
100
100
100
100
82
82
82
82

Medium Clouds (% Sky Obscured)

21
21
9
9
9
9
9
9
95
95
95
95
95
95
100
100
100
100
100
100
24
24
24
24

High Clouds (% Sky Obscured)

9
9
0
0
0
0
0
0
95
95
95
95
95
95
1
1
1
1
1
1
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
9
7
7
6
7
9
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

15
15
16
13
12
11
14
26
32
25
17
13
10
8
6
5
5
8
9
10
9
7
0
0

Precipitation Amount (mm)

0.02
0.02
0.02
0.03
0.04
0.05
0.07
0.12
0.18
0.21
0.21
0.2
0.17
0.14
0.11
0.06
0.03
0.03
0.04
0.07
0.07
0.03
0
0

Wind Speed/Direction (mph)

18
18
18
18
17
17
16
14
13
13
13
12
11
10
8
7
6
6
6
6
6
6
7
7

Chance of Frost

Temperature (°C)

10
10
10
10
11
11
12
13
13
14
15
16
16
16
15
14
13
12
11
10
10
9
9
9

Feels Like (°C)

7
6
7
10
11
11
12
13
13
14
15
16
16
16
15
14
13
12
11
10
8
8
7
7

Dew Point (°C)

9
9
9
10
10
11
11
11
11
11
10
10
9
8
7
8
9
9
9
9
9
8
8
8

Relative Humidity (%)

93
95
97
97
96
95
93
91
87
79
71
65
61
59
61
68
79
86
90
93
94
95
97
99

Pressure (mb)

1004
1005
1005
1005
1006
1006
1007
1007
1007
1007
1007
1007
1007
1007
1007
1008
1008
1009
1009
1008
1008
1008
1008
1007

Ozone (du)

372
371
370
370
370
371
372
373
373
372
371
370
370
371
371
372
373
373
373
372
370
367
364
361

Forecast for Crownhill, Milton Keynes, UK (52.03,-0.81)

Generated: 17/05/21 05:06:06. Forecast: 17/05/21 to 23/05/21. Timezone: UTC+1.00