Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 17

Waxing Crescent 29%

09:02

02:09

04 Bad
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

Sun - Rise: 05:04, Set: 20:54, Transit: 12:59. Moon - Rise: 09:02, Set: 02:09. Civil Dark: 21:36 - 04:21. Nautical Dark: 22:36 - 03:19. Astro Dark: 00:21 - 01:26

Total Clouds (% Sky Obscured)

27
48
100
97
98
100
100
97
93
88
59
66
74
66
68
72
84
86
85
91
94
88
61
31

Low Clouds (% Sky Obscured)

23
45
100
97
98
100
100
96
92
85
45
35
27
20
25
29
21
21
15
17
19
6
9
7

Medium Clouds (% Sky Obscured)

19
16
19
15
16
11
26
9
6
9
10
50
62
46
56
43
45
31
17
19
20
11
12
4

High Clouds (% Sky Obscured)

0
2
2
1
5
5
4
5
15
21
27
46
56
41
32
52
77
82
83
88
92
87
56
26

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
8
10
10
10
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
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

73
45
12
10
9
7
9
26
40
34
36
42
49
36
44
47
22
11
11
5
4
4
2
0

Precipitation Amount (mm)

0.13
0.15
0.01
0.01
0.01
0.01
0.02
0.13
0.34
0.22
0.21
0.32
0.47
0.25
0.34
0.43
0.12
0.03
0.04
0.02
0.02
0.04
0.01
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
5
6
7
8
11
12
13
13
13
13
12
12
12
12
12
11
10
8
7
6
5
5
4

Dew Point (°C)

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

Relative Humidity (%)

87
91
95
95
97
95
91
89
87
84
84
88
91
90
90
90
88
87
87
86
85
85
85
87

Pressure (mb)

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

Ozone (du)

395
392
388
387
386
388
390
390
390
390
391
390
387
384
382
381
382
384
386
387
388
392
393
394

Tuesday 18

Waxing Crescent 39%

10:12

02:37

04 OK
05 OK
06 Good
07 OK
08 OK
09 OK
10 OK
11 OK
12 OK
13 OK
14 OK
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

Sun - Rise: 05:03, Set: 20:55, Transit: 12:59. Moon - Rise: 10:12, Set: 02:37. Civil Dark: 21:38 - 04:20. Nautical Dark: 22:39 - 03:17. Astro Dark: 00:32 - 01:10

Total Clouds (% Sky Obscured)

25
18
14
9
28
20
30
24
24
35
45
66
61
86
88
98
98
98
99
99
98
94
94
92

Low Clouds (% Sky Obscured)

18
10
2
0
2
13
25
20
15
22
12
16
20
32
33
22
16
11
12
15
0
0
0
2

Medium Clouds (% Sky Obscured)

2
4
13
6
20
12
23
18
18
29
42
32
29
33
29
22
23
45
92
96
53
34
27
42

High Clouds (% Sky Obscured)

9
9
2
3
11
0
0
0
0
2
12
54
47
77
82
97
98
96
98
98
98
92
92
88

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
8
7
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
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

Precipitation Probability (%)

0
0
0
9
9
10
9
10
10
10
7
14
33
35
46
55
46
21
18
9
9
8
0
0

Precipitation Amount (mm)

0
0
0
0.01
0.02
0.03
0.04
0.05
0.05
0.06
0.04
0.12
0.29
0.32
0.5
0.59
0.49
0.2
0.23
0.09
0.1
0.07
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
93
96
98
98
95
91
86
82
80
72
70
75
77
84
89
88
89
88
88
90
90
91
92

Pressure (mb)

1011
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015

Ozone (du)

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

Wednesday 19

First Quarter 50%

11:28

02:59

04 Bad
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 OK
01 Good
02 Good
03 Good

Sun - Rise: 05:01, Set: 20:56, Transit: 12:59. Moon - Rise: 11:28, Set: 02:59. Civil Dark: 21:40 - 04:18. Nautical Dark: 22:41 - 03:15. Astro Dark: 00:48 - N/A

Total Clouds (% Sky Obscured)

91
20
18
38
57
75
48
52
57
72
73
81
48
52
56
48
48
48
48
48
48
4
4
4

Low Clouds (% Sky Obscured)

4
13
16
38
56
74
45
46
50
69
70
77
33
24
17
30
30
30
30
30
30
4
4
4

Medium Clouds (% Sky Obscured)

13
6
8
7
5
7
17
22
23
22
22
25
27
41
41
39
39
39
39
39
39
1
1
1

High Clouds (% Sky Obscured)

91
9
0
0
0
0
3
7
11
8
3
0
1
13
34
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
9
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
None
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
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

0
4
5
9
16
27
35
45
44
41
45
33
16
20
20
11
6
4
4
4
2
1
2
2

Precipitation Amount (mm)

0
0.01
0.02
0.04
0.11
0.23
0.41
0.56
0.41
0.35
0.38
0.29
0.15
0.14
0.14
0.11
0.03
0.01
0.01
0.01
0.01
0.01
0.01
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
5
5
6
7
10
11
12
13
13
13
14
15
15
15
15
13
11
9
7
6
5
4
3

Dew Point (°C)

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

Relative Humidity (%)

94
97
100
100
99
95
91
87
86
85
86
80
73
70
70
73
78
82
85
87
87
87
90
92

Pressure (mb)

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

Ozone (du)

396
395
395
396
396
395
393
394
396
398
395
390
385
380
376
374
376
378
379
381
381
381
381
378

Thursday 20

Waxing Gibbous 61%

12:47

03:17

04 Good
05 Good
06 Good
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

Sun - Rise: 05:00, Set: 20:58, Transit: 12:59. Moon - Rise: 12:47, Set: 03:17. Civil Dark: 21:42 - 04:17. Nautical Dark: 22:43 - 03:12. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

4
4
4
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
41
41
41

Low Clouds (% Sky Obscured)

4
4
4
75
75
75
75
75
75
13
13
13
13
13
13
100
100
100
100
100
100
41
41
41

Medium Clouds (% Sky Obscured)

1
1
1
0
0
0
0
0
0
100
100
100
100
100
100
57
57
57
57
57
57
0
0
0

High Clouds (% Sky Obscured)

0
0
0
99
99
99
99
99
99
98
98
98
98
98
98
85
85
85
85
85
85
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
8
9
9
10
9

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
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
Very Light Rain

Precipitation Probability (%)

3
4
10
17
18
11
7
9
12
15
9
6
5
4
5
0
9
32
46
54
44
44
25
27

Precipitation Amount (mm)

0.02
0.04
0.08
0.09
0.07
0.04
0.04
0.09
0.15
0.23
0.17
0.11
0.07
0.06
0.05
0
0.04
0.22
0.31
0.36
0.23
0.3
0.33
0.39

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
98
100
100
98
93
86
81
74
68
64
64
67
73
77
78
81
87
90
92
91
92
92
93

Pressure (mb)

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

Ozone (du)

374
370
369
363
364
367
368
366
363
367
365
362
360
359
358
336
333
333
334
334
336
342
349
352

Friday 21

Waxing Gibbous 72%

14:08

03:34

04 Bad
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

Sun - Rise: 04:59, Set: 20:59, Transit: 12:59. Moon - Rise: 14:08, Set: 03:34. Civil Dark: 21:43 - 04:15. Nautical Dark: 22:46 - 03:10. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

41
41
41
21
21
21
21
21
21
79
79
79
79
79
79
95
95
95
95
95
95
100
100
100

Low Clouds (% Sky Obscured)

41
41
41
18
18
18
18
18
18
6
6
6
6
6
6
61
61
61
61
61
61
100
100
100

Medium Clouds (% Sky Obscured)

0
0
0
6
6
6
6
6
6
64
64
64
64
64
64
91
91
91
91
91
91
90
90
90

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
67
67
67
67
67
67
58
58
58
58
58
58
2
2
2

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

Precipitation Probability (%)

31
27
32
51
47
22
16
11
10
13
33
54
62
61
55
42
32
22
16
0
0
0
27
49

Precipitation Amount (mm)

0.34
0.2
0.2
0.33
0.27
0.16
0.15
0.11
0.1
0.1
0.24
0.39
0.43
0.33
0.22
0.17
0.1
0.03
0.01
0
0
0
0.03
0.13

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
98
99
100
98
92
86
79
76
75
80
89
98
97
95
84
86
88
91
92
93
94
95
97

Pressure (mb)

1010
1009
1008
1009
1008
1007
1007
1006
1005
1004
1003
1002
1002
1001
1000
999
999
998
998
998
997
997
996
996

Ozone (du)

358
364
368
365
366
367
369
371
371
368
368
366
365
365
365
367
368
369
369
369
368
368
368
368

Saturday 22

Waxing Gibbous 82%

15:31

03:50

04 Bad
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

Sun - Rise: 04:58, Set: 21:01, Transit: 12:59. Moon - Rise: 15:31, Set: 03:50. Civil Dark: 21:45 - 04:14. Nautical Dark: 22:48 - 03:08. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
96
96
96
96
96
96
56
56
56
56
56
56
41
41
41
41
41
41
36
36
36

Low Clouds (% Sky Obscured)

100
100
100
96
96
96
96
96
96
48
48
48
48
48
48
31
31
31
31
31
31
16
16
16

Medium Clouds (% Sky Obscured)

90
90
90
20
20
20
20
20
20
36
36
36
36
36
36
33
33
33
33
33
33
22
22
22

High Clouds (% Sky Obscured)

2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
13
13
13

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

56
52
39
29
37
50
53
47
40
35
41
55
60
59
48
37
44
54
56
48
32
20
17
16

Precipitation Amount (mm)

0.23
0.19
0.11
0.07
0.1
0.19
0.27
0.25
0.21
0.21
0.29
0.42
0.47
0.29
0.12
0.09
0.14
0.22
0.27
0.21
0.12
0.06
0.03
0.02

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
99
98
100
99
99
98
97
95
93
92
95
98
98
96
95
94
93
93
93
92
91
91
91

Pressure (mb)

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

Ozone (du)

368
367
366
365
364
363
362
362
363
363
362
362
362
362
362
363
364
366
367
368
369
370
371
372

Sunday 23

Waxing Gibbous 90%

16:57

No Set

04 Bad
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

Sun - Rise: 04:56, Set: 21:02, Transit: 12:59. Moon - Rise: 16:57, Set: No Set. Civil Dark: 21:46 - 04:12. Nautical Dark: 22:50 - 03:06. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

36
36
36
68
68
68
68
68
68
98
98
98
98
98
98
100
100
100
100
100
100
45
45
45

Low Clouds (% Sky Obscured)

16
16
16
67
67
67
67
67
67
25
25
25
25
25
25
100
100
100
100
100
100
38
38
38

Medium Clouds (% Sky Obscured)

22
22
22
5
5
5
5
5
5
95
95
95
95
95
95
100
100
100
100
100
100
20
20
20

High Clouds (% Sky Obscured)

13
13
13
0
0
0
0
0
0
96
96
96
96
96
96
1
1
1
1
1
1
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
9
8
7
7
7
9
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
None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None

Precipitation Probability (%)

15
14
13
14
10
8
7
10
23
31
30
22
17
11
8
6
5
5
10
11
11
10
7
0

Precipitation Amount (mm)

0.02
0.02
0.02
0.02
0.02
0.02
0.03
0.06
0.11
0.17
0.2
0.2
0.18
0.16
0.13
0.1
0.06
0.04
0.04
0.06
0.09
0.09
0.04
0

Wind Speed/Direction (mph)

18
18
18
18
18
17
17
16
15
14
13
13
12
11
10
8
7
6
6
6
6
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
93
94
96
96
95
94
92
92
89
83
78
73
68
65
64
70
79
86
90
92
93
95
97

Pressure (mb)

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

Ozone (du)

372
372
370
369
370
370
371
372
373
373
372
371
370
370
371
372
372
373
373
373
372
371
368
364

Forecast for Bletchley, Milton Keynes, UK (51.99,-0.74)

Generated: 17/05/21 04:13:32. Forecast: 17/05/21 to 23/05/21. Timezone: UTC+1.00