Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 24

Waxing Crescent 21%

10:16

20:54

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

Sun - Rise: 07:11, Set: 16:17, Transit: 11:44. Moon - Rise: 10:16, Set: 20:54. Civil Dark: 16:49 - 06:40. Nautical Dark: 17:24 - 06:04. Astro Dark: 17:58 - 05:30

Total Clouds (% Sky Obscured)

99
98
97
71
28
72
95
96
94
99
85
90
82
86
89
61
17
54
65
97
88
100
87
91

Low Clouds (% Sky Obscured)

49
66
44
49
28
56
85
89
85
97
77
83
71
74
81
38
5
12
0
9
1
4
3
5

Medium Clouds (% Sky Obscured)

92
81
3
0
0
0
13
22
31
21
0
0
0
0
0
0
2
43
65
95
79
83
74
91

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
13
25
23
34
26
39

ISS Passover

Visibility (miles)

8
7
0
9
9
9
0
1
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
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
None
None
None
None
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

20
11
4
3
12
50
69
46
30
14
8
4
3
0
0
0
0
0
0
0
0
0
0
6

Precipitation Amount (mm)

0
0
0
0
0
0
0.4
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
9
10
15
17
19
20
18
16
15
13
11
8
6
3
4
4
4
4
5
6
8
9
10

Chance of Frost

Temperature (°C)

2
2
1
3
3
3
2
1
1
0
0
0
0
-0
-0
-1
-1
-1
-2
-2
-2
-2
-2
-2

Feels Like (°C)

-3
-3
-4
-3
-4
-3
-5
-6
-6
-6
-6
-5
-4
-3
-3
-4
-3
-3
-5
-6
-6
-6
-7
-7

Dew Point (°C)

1
1
1
1
-1
-1
1
-1
-2
-3
-4
-4
-4
-4
-5
-4
-4
-4
-4
-4
-5
-5
-5
-5

Relative Humidity (%)

89
93
94
88
77
74
89
86
78
77
77
73
74
74
72
75
81
84
83
81
79
81
81
79

Pressure (mb)

1008
1009
1010
1011
1013
1013
1015
1016
1018
1020
1022
1023
1024
1025
1025
1025
1025
1024
1023
1023
1023
1022
1021
1019

Ozone (du)

336
337
337
336
340
343
343
343
335
326
321
321
325
328
328
327
324
322
322
323
318
320
327
331

Thursday 25

Waxing Crescent 30%

10:38

22:02

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 OK
21 OK
22 Good
23 Good
00 Good
01 Good
02 Good
03 Good
04 Good
05 Good

Sun - Rise: 07:12, Set: 16:17, Transit: 11:45. Moon - Rise: 10:38, Set: 22:02. Civil Dark: 16:49 - 06:40. Nautical Dark: 17:25 - 06:05. Astro Dark: 17:59 - 05:31

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
52
61
90
87
85
46
47
38
20
6
0
3
0
0
0
0
0

Low Clouds (% Sky Obscured)

10
3
64
61
73
36
10
10
61
87
74
74
46
38
38
20
6
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
52
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

47
93
100
95
100
40
35
2
3
0
24
32
11
2
2
0
0
0
1
0
0
0
0
0

ISS Passover

Visibility (miles)

3
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

16
0
3
7
3
2
2
0
0
14
5
2
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
12
12
12
11
11
11
9
8
10
13
15
17
17
17
18
19
18
17
17
16
16
14
13

Chance of Frost

Temperature (°C)

-2
-2
-1
-1
0
1
2
2
3
3
2
2
0
-1
-3
-4
-4
-5
-6
-7
-8
-8
-9
-9

Feels Like (°C)

-7
-7
-7
-6
-5
-4
-4
-3
-2
-1
-3
-5
-7
-8
-9
-10
-11
-12
-12
-13
-13
-14
-14
-15

Dew Point (°C)

-4
-4
-4
-5
-5
-5
-5
-4
-3
-4
-4
-5
-7
-8
-10
-12
-13
-14
-15
-16
-17
-17
-18
-18

Relative Humidity (%)

81
86
80
74
67
65
63
65
65
63
64
64
58
58
58
53
50
50
48
47
47
47
48
48

Pressure (mb)

1018
1016
1015
1014
1014
1012
1011
1009
1009
1009
1010
1011
1013
1014
1015
1016
1016
1017
1018
1018
1019
1020
1020
1021

Ozone (du)

332
334
349
368
385
394
388
386
386
389
384
379
377
376
375
367
365
364
360
359
360
356
351
346

Friday 26

Waxing Crescent 41%

10:59

23:11

06 Good
07 Good
08 Good
09 Good
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
05 Bad

Sun - Rise: 07:12, Set: 16:18, Transit: 11:45. Moon - Rise: 10:59, Set: 23:11. Civil Dark: 16:50 - 06:40. Nautical Dark: 17:25 - 06:05. Astro Dark: 17:59 - 05:31

Total Clouds (% Sky Obscured)

3
3
11
14
67
73
92
95
100
100
100
100
99
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
2
47
100
100
100
97
96
94
93
90
92
92

Medium Clouds (% Sky Obscured)

0
0
7
9
17
21
13
13
56
18
84
11
96
100
100
100
100
100
100
99
99
98
98
96

High Clouds (% Sky Obscured)

0
0
0
0
10
13
9
65
100
100
100
100
96
100
100
100
100
5
100
100
100
100
75
49

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
2
2
1
1
0
1
0
0

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
None
None
None
None
None
None
None
None
None
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
76
95
95
85
56
60
67
53
45

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.9
0.8
0.6
0.3
0.3
0.4
0.2
0.2

Wind Speed/Direction (mph)

12
11
11
10
9
8
7
6
6
6
5
4
4
4
5
6
7
8
8
8
9
9
10
11

Chance of Frost

Temperature (°C)

-10
-10
-10
-10
-9
-8
-7
-6
-6
-6
-6
-6
-5
-5
-5
-4
-5
-5
-5
-5
-4
-4
-3
-3

Feels Like (°C)

-14
-14
-14
-14
-12
-13
-12
-11
-11
-11
-10
-10
-10
-9
-9
-9
-10
-10
-11
-10
-9
-8
-8
-9

Dew Point (°C)

-18
-19
-19
-19
-19
-19
-19
-19
-19
-18
-17
-16
-15
-14
-13
-12
-12
-10
-9
-8
-7
-6
-5
-5

Relative Humidity (%)

48
48
47
44
41
39
37
36
35
37
39
43
48
51
53
54
59
70
77
79
82
81
87
87

Pressure (mb)

1022
1023
1024
1024
1024
1023
1022
1022
1022
1022
1021
1022
1022
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020

Ozone (du)

342
337
334
331
328
324
321
318
317
318
318
319
320
322
323
325
328
331
332
334
337
338
345
347

Saturday 27

First Quarter 52%

11:20

00:22

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

Sun - Rise: 07:12, Set: 16:19, Transit: 11:46. Moon - Rise: 11:20, Set: 00:22. Civil Dark: 16:51 - 06:41. Nautical Dark: 17:26 - 06:05. Astro Dark: 18:00 - 05:31

Total Clouds (% Sky Obscured)

99
100
100
100
95
90
84
58
34
2
0
0
0
0
2
17
3
3
0
2
4
7
9
11

Low Clouds (% Sky Obscured)

94
96
98
100
95
85
84
58
34
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

98
92
87
77
73
56
50
43
34
2
0
0
0
0
0
0
3
3
0
0
0
0
0
0

High Clouds (% Sky Obscured)

20
8
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
7
9
11

ISS Passover

Visibility (miles)

0
3
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
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

Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

39
30
30
26
20
14
10
8
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

12
13
13
13
14
12
11
11
10
9
8
7
6
6
5
5
5
4
4
4
4
3
3
3

Chance of Frost

Temperature (°C)

-3
-3
-3
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-5
-5
-5
-5
-6
-6
-6
-6
-6

Feels Like (°C)

-9
-9
-9
-10
-10
-10
-10
-10
-9
-9
-8
-7
-7
-7
-7
-7
-8
-7
-8
-8
-8
-7
-7
-7

Dew Point (°C)

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

Relative Humidity (%)

84
76
72
66
65
64
63
60
58
57
54
55
55
56
56
58
57
57
56
60
60
62
61
62

Pressure (mb)

1020
1021
1022
1022
1023
1023
1023
1023
1023
1023
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023

Ozone (du)

355
365
366
363
362
373
372
363
355
352
350
350
350
353
355
359
359
358
358
356
353
350
349
348

Sunday 28

Waxing Gibbous 63%

11:42

01:37

06 Good
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 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 07:13, Set: 16:20, Transit: 11:46. Moon - Rise: 11:42, Set: 01:37. Civil Dark: 16:51 - 06:41. Nautical Dark: 17:27 - 06:05. Astro Dark: 18:01 - 05:32

Total Clouds (% Sky Obscured)

14
37
65
80
80
77
91
100
100
100
100
100
100
100
100
100
100
100
100
99
99
99
99
100

Low Clouds (% Sky Obscured)

0
30
60
80
80
77
91
100
95
95
92
90
73
62
73
81
90
89
94
94
94
94
94
95

Medium Clouds (% Sky Obscured)

0
0
0
0
1
2
3
19
36
91
97
93
96
97
99
100
100
100
100
97
94
91
95
97

High Clouds (% Sky Obscured)

14
23
31
39
59
76
91
100
100
100
100
100
100
100
100
100
100
100
100
72
50
70
85
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
4
2
3

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

Precipitation Probability (%)

0
0
0
0
0
0
0
5
7
9
64
95
95
95
85
49
55
43
36
63
85
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.3
0.8
1.3
0.6
0.4
0
0
0
0
0.2
0.4
0.9
1.1
1.3

Wind Speed/Direction (mph)

5
5
5
5
6
6
6
7
6
5
6
6
7
8
8
8
8
8
8
9
9
8
8
9

Chance of Frost

Temperature (°C)

-6
-6
-5
-4
-3
-2
-1
0
1
1
0
0
-0
0
0
0
0
1
1
2
3
4
5
5

Feels Like (°C)

-8
-8
-7
-6
-5
-4
-3
-4
-3
-3
-4
-4
-4
-4
-4
-4
-4
-5
-4
-4
-2
-1
-1
-2

Dew Point (°C)

-12
-11
-10
-10
-11
-12
-12
-12
-11
-9
-8
-7
-6
-5
-4
-3
-2
-2
-1
1
2
4
4
4

Relative Humidity (%)

65
69
72
64
56
48
41
39
42
47
54
60
65
70
74
78
84
86
88
91
93
94
96
94

Pressure (mb)

1022
1022
1022
1022
1021
1019
1018
1017
1016
1015
1014
1013
1012
1011
1009
1008
1006
1004
1002
1000
998
996
994
992

Ozone (du)

349
348
347
346
347
345
342
340
338
338
337
336
334
333
333
333
333
333
332
332
332
332
332
334

Monday 29

Waxing Gibbous 74%

12:07

02:55

06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 OK
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
05 Bad

Sun - Rise: 07:13, Set: 16:20, Transit: 11:47. Moon - Rise: 12:07, Set: 02:55. Civil Dark: 16:52 - 06:41. Nautical Dark: 17:27 - 06:06. Astro Dark: 18:02 - 05:32

Total Clouds (% Sky Obscured)

100
100
100
100
90
80
70
51
34
30
46
52
66
69
73
80
69
59
72
74
71
67
79
87

Low Clouds (% Sky Obscured)

95
85
76
67
70
74
70
51
34
30
46
47
38
28
17
7
7
9
13
13
16
22
25
32

Medium Clouds (% Sky Obscured)

100
89
71
43
26
16
5
0
5
5
14
20
29
60
73
80
67
33
22
41
43
42
34
24

High Clouds (% Sky Obscured)

100
100
100
100
75
51
26
17
12
23
34
26
16
11
5
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

5
6
7
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
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

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

Precipitation Probability (%)

95
95
95
88
75
61
45
31
18
4
6
7
3
7
5
0
4
4
2
4
4
2
5
6

Precipitation Amount (mm)

1.4
1.2
0.9
0.5
0.4
0.3
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
10
10
11
14
15
16
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
17

Chance of Frost

Temperature (°C)

4
4
4
4
4
3
3
2
1
0
-1
-1
-2
-3
-3
-4
-4
-4
-4
-4
-4
-5
-5
-6

Feels Like (°C)

-3
-4
0
0
0
0
0
0
-4
-4
-5
-6
-6
-6
-9
-9
-10
-10
-10
-10
-11
-12
-12
-12

Dew Point (°C)

4
3
3
3
3
0
-2
-5
-6
-7
-8
-8
-9
-10
-10
-10
-11
-10
-10
-11
-11
-12
-12
-13

Relative Humidity (%)

94
93
93
91
91
80
70
62
60
59
59
58
57
57
58
59
59
59
59
58
59
59
60
57

Pressure (mb)

990
988
988
987
987
987
987
987
988
988
989
990
991
992
992
992
992
993
993
993
994
994
995
996

Ozone (du)

336
338
342
346
351
355
360
364
370
376
382
385
387
390
389
387
386
389
391
394
397
399
402
405

Tuesday 30

Waxing Gibbous 84%

12:39

04:17

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

Sun - Rise: 07:13, Set: 16:21, Transit: 11:47. Moon - Rise: 12:39, Set: 04:17. Civil Dark: 16:53 - 06:41. Nautical Dark: 17:28 - 06:06. Astro Dark: 18:02 - 05:32

Total Clouds (% Sky Obscured)

91
78
61
44
34
24
17
13
23
30
24
21
21
16
10
5
5
4
4

Low Clouds (% Sky Obscured)

36
28
33
24
19
16
6
6
6
5
5
4
2
2
1
2
2
3
3

Medium Clouds (% Sky Obscured)

14
9
5
0
1
2
2
13
23
30
24
21
8
8
4
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
13
23
30
24
21
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

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
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

6
3
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

17
17
17
17
17
17
17
17
17
16
16
16
16
15
15
14
14
13
12

Chance of Frost

Temperature (°C)

-6
-7
-6
-6
-6
-5
-4
-4
-4
-4
-4
-4
-5
-5
-6
-6
-6
-6
-6

Feels Like (°C)

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

Dew Point (°C)

-13
-14
-14
-14
-14
-14
-14
-13
-13
-13
-12
-12
-13
-13
-13
-13
-13
-14
-14

Relative Humidity (%)

56
54
53
52
50
48
47
46
48
50
52
53
54
55
55
55
55
55
55

Pressure (mb)

996
997
998
1000
1001
1001
1001
1001
1002
1003
1004
1006
1007
1008
1009
1010
1011
1012
1012

Ozone (du)

409
413
414
416
418
422
426
429
429
428
428
421
415
409
405
401
397
400
402

Forecast for Brookline, Norfolk, United States of America (42.33,-71.12)

Generated: 24/12/25 06:13:52. Forecast: 24/12/25 to 30/12/25. Timezone: UTC-5.00