Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 17

Waxing Crescent 29%

09:05

02:06

04 Bad
05 Bad
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 Good
03 Good

Sun - Rise: 05:06, Set: 20:51, Transit: 12:59. Moon - Rise: 09:05, Set: 02:06. Civil Dark: 21:33 - 04:24. Nautical Dark: 22:32 - 03:24. Astro Dark: 00:05 - 01:46

Total Clouds (% Sky Obscured)

34
18
20
37
62
100
98
89
82
46
66
41
75
99
94
86
81
90
94
94
86
37
10
8

Low Clouds (% Sky Obscured)

23
12
5
25
59
100
98
88
81
39
51
15
58
15
20
29
11
13
16
22
22
11
0
5

Medium Clouds (% Sky Obscured)

31
16
10
18
16
8
4
3
6
17
31
31
49
98
91
74
28
32
21
16
23
7
2
1

High Clouds (% Sky Obscured)

0
0
10
6
0
0
0
4
6
7
27
20
26
89
58
53
74
86
91
92
81
29
9
5

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
9
9
10
8
8
9
10
10
6
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
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

10
32
9
14
13
17
37
46
32
32
47
54
60
65
70
62
44
21
20
13
10
9
0
0

Precipitation Amount (mm)

0.02
0.17
0.01
0.03
0.03
0.04
0.19
0.31
0.17
0.17
0.34
0.47
0.73
0.73
0.93
0.45
0.31
0.07
0.08
0.04
0.05
0.03
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
90
94
95
98
99
98
96
94
87
87
92
96
98
97
95
93
91
90
89
88
88
88
90

Pressure (mb)

1001
1001
1002
1003
1003
1004
1005
1005
1005
1006
1006
1007
1007
1007
1008
1008
1009
1010
1010
1011
1011
1011
1011
1012

Ozone (du)

390
385
381
384
387
386
386
388
390
392
389
382
383
384
386
386
388
390
392
393
393
394
394
393

Tuesday 18

Waxing Crescent 39%

10:14

02:34

04 OK
05 OK
06 OK
07 OK
08 Bad
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

Sun - Rise: 05:05, Set: 20:53, Transit: 12:59. Moon - Rise: 10:14, Set: 02:34. Civil Dark: 21:35 - 04:23. Nautical Dark: 22:34 - 03:22. Astro Dark: 00:12 - 01:38

Total Clouds (% Sky Obscured)

23
28
21
17
50
33
28
29
31
42
61
80
97
87
98
98
99
99
99
98
97
99
100
98

Low Clouds (% Sky Obscured)

13
3
0
6
43
27
25
19
19
22
31
66
36
33
23
16
23
21
16
6
13
1
3
15

Medium Clouds (% Sky Obscured)

2
0
2
16
32
26
9
15
23
37
10
11
34
23
37
34
94
95
95
73
89
89
93
28

High Clouds (% Sky Obscured)

13
26
19
0
0
0
2
9
5
5
49
59
95
81
97
98
98
97
97
97
89
96
99
98

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
0
0
0
7
8
10
16
15
28
24
25
35
43
36
32
27
14
12
9
6
4
4
4

Precipitation Amount (mm)

0
0
0
0
0.01
0.02
0.06
0.12
0.11
0.16
0.16
0.22
0.35
0.59
0.28
0.22
0.19
0.14
0.17
0.1
0.05
0.02
0.02
0.02

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

6
6
7
8
9
11
12
13
13
14
15
16
15
15
14
14
13
11
10
10
9
9
9
8

Feels Like (°C)

4
4
5
6
7
11
12
13
13
14
15
16
15
15
14
14
13
11
10
8
8
8
7
7

Dew Point (°C)

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

Relative Humidity (%)

92
94
96
97
97
94
91
86
83
84
75
69
72
74
77
79
84
87
89
91
92
91
91
92

Pressure (mb)

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

Ozone (du)

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

Wednesday 19

First Quarter 50%

11:30

02:57

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 OK
19 Bad
20 OK
21 OK
22 OK
23 OK
00 OK
01 Good
02 Good
03 Good

Sun - Rise: 05:04, Set: 20:54, Transit: 12:59. Moon - Rise: 11:30, Set: 02:57. Civil Dark: 21:37 - 04:21. Nautical Dark: 22:36 - 03:19. Astro Dark: 00:19 - 01:30

Total Clouds (% Sky Obscured)

82
89
48
52
72
72
29
37
33
34
36
52
39
48
26
44
44
44
44
44
44
3
3
3

Low Clouds (% Sky Obscured)

59
89
48
52
72
70
20
22
14
9
13
33
20
25
10
13
13
13
13
13
13
2
2
2

Medium Clouds (% Sky Obscured)

10
7
6
3
3
4
23
31
28
32
34
48
38
38
21
41
41
41
41
41
41
3
3
3

High Clouds (% Sky Obscured)

55
2
0
0
0
0
0
0
0
0
0
0
0
0
8
1
1
1
1
1
1
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

4
0
0
0
0
6
25
25
33
41
32
14
13
13
17
20
6
3
4
4
4
2
3
6

Precipitation Amount (mm)

0.01
0
0
0
0
0.03
0.26
0.28
0.39
0.46
0.31
0.14
0.12
0.11
0.11
0.18
0.05
0.01
0.02
0.01
0.01
0.01
0.02
0.06

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

8
8
8
9
10
11
12
13
14
14
15
16
16
16
15
15
14
12
11
10
9
8
7
7

Feels Like (°C)

6
6
6
7
8
11
12
13
14
14
15
16
16
16
15
15
14
12
11
8
7
6
5
5

Dew Point (°C)

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

Relative Humidity (%)

94
96
97
97
95
90
85
82
79
80
72
68
65
65
71
76
78
80
82
84
86
88
91
93

Pressure (mb)

1015
1015
1016
1016
1017
1017
1017
1018
1018
1018
1019
1019
1019
1019
1019
1020
1020
1021
1021
1022
1022
1021
1022
1023

Ozone (du)

394
394
393
398
398
398
398
397
394
396
394
391
386
382
377
376
377
379
381
382
382
382
379
376

Thursday 20

Waxing Gibbous 61%

12:48

03:16

04 Good
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

Sun - Rise: 05:02, Set: 20:56, Transit: 12:59. Moon - Rise: 12:48, Set: 03:16. Civil Dark: 21:38 - 04:19. Nautical Dark: 22:38 - 03:17. Astro Dark: 00:28 - 01:18

Total Clouds (% Sky Obscured)

3
3
3
98
98
98
98
98
98
100
100
100
100
100
100
100
100
100
100
100
100
41
41
41

Low Clouds (% Sky Obscured)

2
2
2
0
0
0
0
0
0
52
52
52
52
52
52
99
99
99
99
99
99
41
41
41

Medium Clouds (% Sky Obscured)

3
3
3
10
10
10
10
10
10
100
100
100
100
100
100
96
96
96
96
96
96
0
0
0

High Clouds (% Sky Obscured)

0
0
0
98
98
98
98
98
98
98
98
98
98
98
98
71
71
71
71
71
71
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
9
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
Very Light Rain
Very Light Rain

Precipitation Probability (%)

10
12
14
11
12
9
7
8
15
12
11
11
10
10
11
0
4
17
25
24
15
16
30
35

Precipitation Amount (mm)

0.1
0.12
0.11
0.06
0.05
0.04
0.04
0.07
0.1
0.12
0.14
0.17
0.19
0.19
0.18
0
0.02
0.13
0.23
0.17
0.07
0.15
0.35
0.37

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

6
6
6
8
10
12
13
14
14
14
14
14
14
13
13
13
13
12
12
12
11
11
11
11

Feels Like (°C)

4
4
4
5
7
12
13
14
14
14
14
14
14
13
13
13
13
12
12
12
11
11
11
11

Dew Point (°C)

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

Relative Humidity (%)

97
99
99
99
97
90
83
78
76
74
71
71
73
75
76
72
76
82
86
89
91
94
94
95

Pressure (mb)

1023
1022
1022
1021
1021
1020
1020
1019
1019
1018
1017
1017
1016
1015
1015
1020
1020
1019
1018
1018
1016
1014
1013
1012

Ozone (du)

372
369
368
361
363
366
367
365
363
366
364
362
360
359
357
336
333
332
333
333
334
340
344
347

Friday 21

Waxing Gibbous 72%

14:08

03:33

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: 05:01, Set: 20:57, Transit: 12:59. Moon - Rise: 14:08, Set: 03:33. Civil Dark: 21:40 - 04:18. Nautical Dark: 22:41 - 03:15. Astro Dark: 00:40 - N/A

Total Clouds (% Sky Obscured)

41
41
41
42
42
42
42
42
42
86
86
86
86
86
86
95
95
95
95
95
95
81
81
81

Low Clouds (% Sky Obscured)

41
41
41
38
38
38
38
38
38
21
21
21
21
21
21
52
52
52
52
52
52
65
65
65

Medium Clouds (% Sky Obscured)

0
0
0
14
14
14
14
14
14
79
79
79
79
79
79
91
91
91
91
91
91
78
78
78

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
56
56
56
56
56
56
45
45
45
45
45
45
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

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

Precipitation Probability (%)

39
24
26
63
27
14
10
9
8
6
20
36
42
44
43
27
22
19
18
22
28
29
32
35

Precipitation Amount (mm)

0.39
0.24
0.24
0.29
0.13
0.09
0.08
0.06
0.06
0.04
0.15
0.27
0.26
0.25
0.21
0.13
0.09
0.04
0.03
0.03
0.04
0.06
0.07
0.09

Wind Speed/Direction (mph)

15
15
15
15
16
16
17
17
18
18
20
20
19
20
20
22
21
20
20
20
21
21
22
22

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
10
11
11
11
11
11
11
11
11
11
11
11
11
10
9
9
9
10
10
10
10
10
10

Relative Humidity (%)

96
98
100
100
99
94
88
85
81
77
74
77
81
85
85
77
80
83
87
90
92
94
94
94

Pressure (mb)

1011
1010
1009
1010
1009
1009
1008
1007
1006
1005
1004
1003
1003
1002
1002
1001
1001
1000
1000
999
999
999
998
998

Ozone (du)

351
357
362
363
366
367
369
371
369
367
368
366
364
363
363
367
368
369
370
370
370
370
370
369

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 Good
02 Good
03 Good

Sun - Rise: 05:00, Set: 20:58, Transit: 12:59. Moon - Rise: 15:31, Set: 03:50. Civil Dark: 21:42 - 04:16. Nautical Dark: 22:43 - 03:13. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

81
81
81
24
24
24
24
24
24
63
63
63
63
63
63
53
53
53
53
53
53
9
9
9

Low Clouds (% Sky Obscured)

65
65
65
10
10
10
10
10
10
27
27
27
27
27
27
15
15
15
15
15
15
7
7
7

Medium Clouds (% Sky Obscured)

78
78
78
20
20
20
20
20
20
55
55
55
55
55
55
50
50
50
50
50
50
4
4
4

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
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
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

Precipitation Probability (%)

39
39
37
40
46
53
54
47
39
32
25
21
20
22
28
32
36
40
36
23
13
0
0
5

Precipitation Amount (mm)

0.11
0.11
0.11
0.12
0.2
0.33
0.4
0.29
0.17
0.13
0.13
0.12
0.11
0.11
0.11
0.11
0.13
0.16
0.16
0.1
0.03
0
0
0.01

Wind Speed/Direction (mph)

23
22
22
22
23
24
25
25
24
24
24
23
23
22
22
21
20
19
19
18
18
18
17
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
96
97
99
98
97
96
95
94
91
84
79
76
77
81
85
85
84
84
84
86
86
86
86

Pressure (mb)

998
998
998
998
998
998
999
999
1000
1000
1001
1001
1002
1002
1002
1002
1003
1003
1004
1004
1005
1005
1005
1005

Ozone (du)

369
368
367
365
365
364
364
363
363
364
364
364
365
365
365
365
366
367
367
368
369
369
368
367

Sunday 23

Waxing Gibbous 90%

16:56

No Set

04 OK
05 OK
06 OK
07 Bad
08 Bad
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

Sun - Rise: 04:59, Set: 21:00, Transit: 12:59. Moon - Rise: 16:56, Set: No Set. Civil Dark: 21:43 - 04:15. Nautical Dark: 22:45 - 03:11. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

9
9
9
30
30
30
30
30
30
98
98
98
98
98
98
100
100
100
100
100
100
76
76
76

Low Clouds (% Sky Obscured)

7
7
7
16
16
16
16
16
16
10
10
10
10
10
10
99
99
99
99
99
99
3
3
3

Medium Clouds (% Sky Obscured)

4
4
4
26
26
26
26
26
26
94
94
94
94
94
94
100
100
100
100
100
100
20
20
20

High Clouds (% Sky Obscured)

2
2
2
0
0
0
0
0
0
95
95
95
95
95
95
86
86
86
86
86
86
70
70
70

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

8
11
16
18
11
4
0
3
4
5
5
4
4
5
6
5
4
2
0
0
0
0
5
19

Precipitation Amount (mm)

0.02
0.03
0.06
0.07
0.05
0.01
0
0.01
0.04
0.07
0.08
0.08
0.08
0.09
0.1
0.1
0.05
0.01
0
0
0
0
0.07
0.42

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

10
10
10
10
11
12
13
13
14
15
16
17
17
17
16
15
15
13
12
11
10
10
9
9

Feels Like (°C)

10
10
10
10
11
12
13
13
14
15
16
17
17
17
16
15
15
13
12
11
10
9
8
8

Dew Point (°C)

8
8
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
8
8
8
8
8

Relative Humidity (%)

86
88
89
91
88
84
80
77
74
70
65
62
60
60
62
65
69
73
77
81
86
90
92
95

Pressure (mb)

1006
1006
1006
1007
1007
1007
1007
1008
1008
1008
1008
1007
1007
1008
1008
1008
1008
1009
1009
1009
1009
1008
1008
1008

Ozone (du)

366
366
367
367
369
372
374
374
373
373
372
372
372
372
373
374
374
374
374
374
373
372
369
365

Forecast for Maidenhead, Windsor and Maidenhead, UK (51.50,-0.70)

Generated: 17/05/21 04:19:01. Forecast: 17/05/21 to 23/05/21. Timezone: UTC+1.00