Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 31

Waxing Gibbous 92%

13:20

05:36

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Good

Sun - Rise: 07:13, Set: 16:22, Transit: 11:48. Moon - Rise: 13:20, Set: 05:36. Civil Dark: 16:54 - 06:41. Nautical Dark: 17:29 - 06:06. Astro Dark: 18:03 - 05:32

Total Clouds (% Sky Obscured)

71
81
85
87
100
78
86
100
69
100
100
100
100
100
100
100
100
87
100
76
95
53
50
4

Low Clouds (% Sky Obscured)

19
24
16
11
7
5
0
1
0
0
48
53
85
95
99
50
48
51
97
76
87
20
25
4

Medium Clouds (% Sky Obscured)

71
81
64
87
100
78
77
100
69
100
100
100
100
100
100
100
100
76
100
47
46
0
0
0

High Clouds (% Sky Obscured)

44
67
4
62
66
31
17
5
65
60
100
100
100
100
100
100
15
15
25
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
0
0
0
0
3
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
Snow
Snow
Snow
Snow
None
None
Snow
Snow
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
4
33
57
80
95
77
26
10
45
37
8
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.7
0.3
0
0
0.1
0.1
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

0
0
-1
-1
-1
-2
-2
-3
-3
-3
-3
-2
-2
-2
-2
-2
-1
-0
-0
-1
-2
-2
-3
-4

Feels Like (°C)

-6
-6
-6
-6
-7
-7
-7
-7
-8
-8
-8
-8
-8
-7
-7
-6
-6
-5
-6
-8
-8
-9
-10
-10

Dew Point (°C)

-11
-12
-12
-12
-12
-11
-11
-11
-11
-11
-11
-8
-4
-4
-3
-3
-2
-3
-4
-8
-10
-11
-13
-14

Relative Humidity (%)

42
41
41
43
44
47
51
53
53
53
54
64
86
91
94
94
89
83
75
60
53
50
46
43

Pressure (mb)

1007
1007
1007
1007
1007
1007
1007
1007
1007
1006
1005
1004
1003
1002
1001
1000
999
999
999
1000
1001
1001
1002
1002

Ozone (du)

415
416
399
388
385
383
391
390
382
376
376
381
383
386
401
406
403
400
403
396
399
410
406
397

Thursday 1

Waxing Gibbous 97%

14:13

06:48

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

Sun - Rise: 07:13, Set: 16:23, Transit: 11:48. Moon - Rise: 14:13, Set: 06:48. Civil Dark: 16:55 - 06:42. Nautical Dark: 17:30 - 06:06. Astro Dark: 18:04 - 05:32

Total Clouds (% Sky Obscured)

14
7
1
3
3
0
0
0
3
4
5
5
8
45
50
55
55
53
43
4
0
3
3
29

Low Clouds (% Sky Obscured)

14
7
0
0
1
0
0
0
0
0
1
1
1
13
7
1
2
1
1
1
0
1
1
18

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
3
2
4
4
8
45
50
50
50
52
43
3
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
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 (%)

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 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)

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

Chance of Frost

Temperature (°C)

-4
-5
-5
-6
-7
-8
-8
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9
-8
-7
-6
-5

Feels Like (°C)

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

Dew Point (°C)

-15
-15
-15
-15
-15
-16
-16
-17
-17
-17
-16
-16
-16
-16
-15
-15
-15
-15
-16
-16
-15
-15
-16
-16

Relative Humidity (%)

41
42
45
49
51
52
51
50
50
51
56
58
57
57
60
61
60
61
59
59
55
50
45
41

Pressure (mb)

1002
1003
1004
1005
1006
1007
1007
1008
1008
1009
1009
1008
1008
1009
1008
1008
1008
1008
1009
1009
1009
1009
1008
1007

Ozone (du)

393
384
387
391
394
394
394
396
397
392
381
370
374
374
372
370
372
366
358
358
369
371
366
369

Friday 2

Waxing Gibbous 100%

15:20

07:46

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

Sun - Rise: 07:13, Set: 16:24, Transit: 11:49. Moon - Rise: 15:20, Set: 07:46. Civil Dark: 16:55 - 06:42. Nautical Dark: 17:31 - 06:06. Astro Dark: 18:05 - 05:32

Total Clouds (% Sky Obscured)

58
59
29
12
3
3
4
3
2
0
0
2
0
0
0
0
0
0
2
2
4
18
71
84

Low Clouds (% Sky Obscured)

34
32
29
12
1
1
2
2
2
0
0
2
0
0
0
0
0
0
1
0
1
1
13
19

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
15
18

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
2
2
2

ISS Passover

Visibility (miles)

9
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 (%)

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 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)

13
12
11
11
9
8
8
9
9
9
10
10
10
10
10
10
10
9
9
9
10
10
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

39
40
41
44
48
51
55
61
62
61
58
57
58
58
61
63
65
66
66
65
60
52
49
47

Pressure (mb)

1007
1007
1007
1007
1008
1008
1009
1009
1009
1009
1009
1009
1009
1010
1010
1010
1011
1011
1012
1012
1013
1014
1013
1013

Ozone (du)

376
381
389
394
390
379
374
369
367
372
365
361
359
350
338
336
335
336
336
334
333
336
337
337

Saturday 3

Full Moon 99%

16:36

08:30

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 OK

Sun - Rise: 07:13, Set: 16:25, Transit: 11:49. Moon - Rise: 16:36, Set: 08:30. Civil Dark: 16:56 - 06:42. Nautical Dark: 17:31 - 06:06. Astro Dark: 18:05 - 05:32

Total Clouds (% Sky Obscured)

73
51
90
72
86
91
100
100
100
100
100
100
100
100
100
96
92
87
88
88
88
67
46
20

Low Clouds (% Sky Obscured)

19
6
8
5
4
2
15
13
13
24
30
30
40
30
25
55
60
30
21
63
84
65
44
20

Medium Clouds (% Sky Obscured)

21
22
27
28
59
54
100
100
100
100
100
100
99
99
99
96
92
87
87
88
86
67
46
2

High Clouds (% Sky Obscured)

2
1
1
34
67
91
100
100
100
100
100
100
100
100
100
67
33
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
8
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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
8
18
7
6
6
5
9
8
4
11
12
5

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
10
9
8
7
7
6
6
5
5
5
4
4
3
3
2
2
3
5
5
5
5
4
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-8
-7
-5
-6
-5
-5
-5
-7
-7
-7
-6
-6
-6
-6
-6
-5
-5
-5
-6
-6
-6
-6
-5
-5

Dew Point (°C)

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

Relative Humidity (%)

45
44
44
48
53
55
57
56
56
57
57
63
65
71
76
76
75
71
68
67
62
57
55
53

Pressure (mb)

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

Ozone (du)

337
335
335
336
335
334
332
333
335
335
337
335
337
339
338
337
339
340
340
342
342
344
346
348

Sunday 4

Waning Gibbous 95%

17:56

09:04

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

Sun - Rise: 07:13, Set: 16:26, Transit: 11:50. Moon - Rise: 17:56, Set: 09:04. Civil Dark: 16:57 - 06:41. Nautical Dark: 17:32 - 06:06. Astro Dark: 18:06 - 05:32

Total Clouds (% Sky Obscured)

21
11
15
3
21
28
40
20
7
6
72
77
66
66
69
70
69
72
57
45
29
20
12
7

Low Clouds (% Sky Obscured)

17
11
3
1
0
0
0
2
1
0
5
19
11
7
4
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
12
18
27
15
4
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
3
2
0
0
0
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
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 (%)

8
6
1
2
0
0
1
1
2
2
1
0
1
0
0
1
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)

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

Chance of Frost

Temperature (°C)

-2
-2
-3
-3
-4
-4
-4
-4
-4
-5
-5
-5
-6
-5
-5
-6
-6
-7
-7
-7
-7
-6
-6
-5

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

51
50
50
55
56
56
60
65
70
66
62
58
53
55
55
56
57
57
57
51
47
43
40
38

Pressure (mb)

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

Ozone (du)

349
350
351
355
359
359
355
356
357
363
364
364
366
365
364
363
360
356
353
354
356
357
357
357

Monday 5

Waning Gibbous 89%

19:14

09:31

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

Sun - Rise: 07:13, Set: 16:27, Transit: 11:50. Moon - Rise: 19:14, Set: 09:31. Civil Dark: 16:58 - 06:41. Nautical Dark: 17:33 - 06:06. Astro Dark: 18:07 - 05:32

Total Clouds (% Sky Obscured)

20
29
45
55
60
79
70
70
60
61
61
57
57
61
74
82
90
98
99
100
100
100
99
99

Low Clouds (% Sky Obscured)

12
24
34
37
39
41
60
70
60
61
61
57
57
61
73
64
51
30
34
57
82
70
54
39

Medium Clouds (% Sky Obscured)

3
4
15
20
60
79
70
70
60
52
12
4
23
44
65
79
90
98
99
100
100
100
99
99

High Clouds (% Sky Obscured)

15
29
45
55
41
11
7
4
0
0
0
0
0
0
0
5
8
7
29
49
67
56
68
71

ISS Passover

Visibility (miles)

9
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 (%)

0
1
1
2
2
1
9
12
11
14
13
8
7
5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-11
-8
-7
-6
-6
-6
-6
-8
-8
-9
-9
-9
-9
-9
-8
-8
-7
-7
-8
-7
-8
-8
-9
-9

Dew Point (°C)

-17
-16
-15
-14
-13
-13
-13
-13
-12
-12
-12
-12
-12
-11
-10
-9
-8
-8
-7
-8
-9
-9
-10
-10

Relative Humidity (%)

35
37
38
40
42
46
49
50
52
53
55
56
59
60
61
64
64
65
67
63
59
56
53
50

Pressure (mb)

1018
1018
1018
1017
1017
1017
1017
1017
1017
1016
1016
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013

Ozone (du)

358
359
361
363
367
372
377
379
380
382
377
372
366
368
370
372
373
374
376
377
377
378
377
375

Tuesday 6

Waning Gibbous 81%

20:28

09:54

13 Bad
14 OK
15 OK
16 Good
17 Good
18 Good
19 Good
20 Good
21 Good
22 Good
23 Good
00 Good
01 OK
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:13, Set: 16:28, Transit: 11:51. Moon - Rise: 20:28, Set: 09:54. Civil Dark: 16:59 - 06:41. Nautical Dark: 17:34 - 06:06. Astro Dark: 18:08 - 05:32

Total Clouds (% Sky Obscured)

74
47
21
15
9
4
2
1
1
6
10
18
43
66
92
95
97
100

Low Clouds (% Sky Obscured)

30
19
8
6
4
2
1
1
1
3
7
10
11
11
14
21
28
34

Medium Clouds (% Sky Obscured)

70
40
11
8
4
1
1
0
0
0
2
0
0
0
0
33
66
99

High Clouds (% Sky Obscured)

50
25
21
15
9
0
0
0
0
0
0
1
24
51
77
85
82
85

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
6

Fog (%)

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

Precipitation Probability (%)

0
0
0
2
1
1
1
0
0
0
0
0
0
0
0
5
8
17

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

10
9
9
8
8
7
6
6
5
5
5
4
4
3
3
2
2
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-8
-5
-5
-5
-5
-5
-5
-4
-4
-4
-4
-4
-4
-5
-4
-4
-4
-5

Dew Point (°C)

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

Relative Humidity (%)

47
48
49
51
52
54
56
60
63
67
69
72
74
74
72
72
71
71

Pressure (mb)

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

Ozone (du)

373
369
365
361
363
366
368
369
370
371
369
367
365
364
362
361
362
363

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

Generated: 31/12/25 13:34:32. Forecast: 31/12/25 to 06/01/26. Timezone: UTC-5.00