Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 1

Waxing Gibbous 97%

13:32

07:51

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

Sun - Rise: 08:11, Set: 16:09, Transit: 12:10. Moon - Rise: 13:32, Set: 07:51. Civil Dark: 16:49 - 07:32. Nautical Dark: 17:31 - 06:49. Astro Dark: 18:12 - 06:08

Total Clouds (% Sky Obscured)

79
74
88
86
100
100
85
64
43
36
41
47
78
78
37
34
41
81
100
93
85
84
88
92

Low Clouds (% Sky Obscured)

49
65
58
50
45
36
50
48
39
36
41
43
69
39
23
9
33
74
93
86
74
73
77
79

Medium Clouds (% Sky Obscured)

18
0
0
0
0
0
0
0
0
0
0
6
52
54
26
27
29
64
97
85
34
31
46
44

High Clouds (% Sky Obscured)

32
29
41
86
100
100
82
14
11
6
2
2
5
6
3
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
0
0
0
0
0
2

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
Light Rain
Light Rain
Light Rain
None
Snow
None

Precipitation Probability (%)

0
0
5
14
3
2
2
1
1
1
0
0
0
0
3
6
17
35
65
83
63
17
35
41

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.8
0.5
0
0.1
0

Wind Speed/Direction (mph)

10
10
10
10
13
13
13
11
11
11
10
10
10
10
10
10
10
10
10
8
6
7
7
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
82
85
85
83
73
75
79
82
85
89
91
93
91
91
91
93
89
93
98
98
98
96
91

Pressure (mb)

1013
1013
1013
1012
1012
1011
1011
1011
1010
1011
1011
1011
1011
1011
1010
1010
1010
1010
1009
1009
1008
1008
1008
1009

Ozone (du)

313
311
316
337
358
377
376
375
370
367
366
366
369
365
361
356
351
346
345
345
343
346
350
348

Friday 2

Waxing Gibbous 100%

14:34

08:48

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

Sun - Rise: 08:11, Set: 16:10, Transit: 12:11. Moon - Rise: 14:34, Set: 08:48. Civil Dark: 16:50 - 07:32. Nautical Dark: 17:32 - 06:49. Astro Dark: 18:13 - 06:08

Total Clouds (% Sky Obscured)

100
94
15
24
31
0
41
60
47
55
24
24
20
14
31
34
37
16
0
6
26
23
5
8

Low Clouds (% Sky Obscured)

97
76
6
24
31
0
41
60
47
55
24
24
20
14
31
34
37
16
0
6
26
23
5
8

Medium Clouds (% Sky Obscured)

45
36
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

41
46
10
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0.2
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
11
13
13
12
10
9
9
9
8
8
7
8
8
9
9
9
9
9
10
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
86
84
80
76
76
74
78
84
86
86
89
89
89
89
87
86
91
89
86
81
81
80
81

Pressure (mb)

1009
1009
1010
1009
1009
1009
1009
1010
1010
1010
1011
1011
1011
1012
1012
1012
1012
1012
1013
1012
1012
1013
1013
1013

Ozone (du)

345
344
341
344
341
328
311
304
297
289
295
301
305
311
313
320
330
341
346
349
350
353
357
352

Saturday 3

Full Moon 99%

15:55

No Set

09 Good
10 Good
11 Good
12 Good
13 Good
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 Good
03 Good
04 Good
05 Good
06 Good
07 Good
08 Good

Sun - Rise: 08:11, Set: 16:11, Transit: 12:11. Moon - Rise: 15:55, Set: No Set. Civil Dark: 16:51 - 07:31. Nautical Dark: 17:33 - 06:49. Astro Dark: 18:14 - 06:08

Total Clouds (% Sky Obscured)

11
0
7
7
10
0
0
0
0
0
0
0
0
0
0
2
2
2
1
3
3
2
2
2

Low Clouds (% Sky Obscured)

11
0
7
7
10
0
0
0
0
0
0
0
0
0
0
2
2
2
1
3
2
2
1
0

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
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
1
1

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-5
-6
-6
-6
-6
-5
-5
-6
-5
-5
-5
-5
-6
-6
-6
-6
-6
-6
-6
-6
-6
-6
-6
-6

Relative Humidity (%)

79
70
63
60
60
60
63
62
67
70
72
72
70
72
75
79
79
76
78
76
76
75
76
75

Pressure (mb)

1014
1014
1015
1015
1015
1015
1015
1016
1016
1017
1017
1018
1018
1019
1019
1019
1019
1020
1020
1019
1019
1019
1019
1020

Ozone (du)

339
335
339
344
346
348
349
345
346
344
351
345
339
336
337
340
336
336
331
330
333
335
338
341

Sunday 4

Waning Gibbous 96%

17:25

09:26

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

Sun - Rise: 08:10, Set: 16:12, Transit: 12:12. Moon - Rise: 17:25, Set: 09:26. Civil Dark: 16:52 - 07:31. Nautical Dark: 17:34 - 06:49. Astro Dark: 18:15 - 06:08

Total Clouds (% Sky Obscured)

3
11
4
4
4
2
2
1
2
11
20
5
14
55
50
48
45
43
51
73
89
91
91
93

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
3
25
30
35
36
30
29
52
57
59
58
58

Medium Clouds (% Sky Obscured)

0
0
0
3
3
2
2
1
2
11
3
3
6
45
35
40
43
20
34
73
86
91
52
41

High Clouds (% Sky Obscured)

1
2
2
0
0
0
0
0
0
1
2
0
0
0
0
0
0
0
1
17
15
8
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
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
Snow

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
1
2
0
0
0
1
6
5
6
22
31
38

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
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
66
58
55
56
60
67
77
78
78
78
80
86
91
89
84
87
91
94
92
92
91
91
91

Pressure (mb)

1020
1020
1020
1020
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1017
1017
1017

Ozone (du)

341
341
342
344
343
344
342
343
344
346
353
357
355
354
358
362
363
367
370
376
379
382
386
387

Monday 5

Waning Gibbous 90%

18:54

09:52

09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 OK
18 OK
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

Sun - Rise: 08:10, Set: 16:14, Transit: 12:12. Moon - Rise: 18:54, Set: 09:52. Civil Dark: 16:53 - 07:31. Nautical Dark: 17:36 - 06:48. Astro Dark: 18:16 - 06:08

Total Clouds (% Sky Obscured)

90
83
78
87
86
84
61
39
18
14
8
2
0
1
1
0
0
0
0
0
0
3
4
9

Low Clouds (% Sky Obscured)

58
53
51
44
48
37
28
19
18
9
4
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

43
44
44
78
77
79
61
20
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
2

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
3
4
9

ISS Passover

Visibility (miles)

9
9
9
9
9
8
0
0
1
3
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
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

31
25
20
21
32
51
48
24
8
5
1
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.1
0
0
0
0
0.2
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
8
7
8
8
9
10
7
4
5
5
4
4
3
3
2
2
2
2
2
2
2
1
1

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
84
80
77
78
86
96
98
98
96
98
96
94
96
94
89
89
87
85
85
84
84
84
84

Pressure (mb)

1017
1017
1017
1017
1016
1016
1016
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

387
386
387
384
385
388
388
383
378
377
375
373
370
366
360
356
358
359
361
363
366
368
371
375

Tuesday 6

Waning Gibbous 83%

20:19

10:09

09 Good
10 Good
11 Good
12 OK
13 OK
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

Sun - Rise: 08:10, Set: 16:15, Transit: 12:12. Moon - Rise: 20:19, Set: 10:09. Civil Dark: 16:54 - 07:30. Nautical Dark: 17:37 - 06:48. Astro Dark: 18:17 - 06:08

Total Clouds (% Sky Obscured)

14
15
5
20
35
49
64
82
100
100
100
100
88
78
66
76
82
91
81
72
61
71
80
90

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
5
9
14
34
55
78
65
52
39
38
36
34

Medium Clouds (% Sky Obscured)

14
15
5
20
35
49
64
82
100
100
100
100
88
78
66
53
40
36
26
20
14
23
34
45

High Clouds (% Sky Obscured)

14
15
5
15
10
10
22
35
47
35
18
10
7
2
1
1
0
0
0
1
3
12
24
40

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
Snow
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
1
3
5
20
29
37
35
29
9
7
4
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
79
75
71
74
75
78
78
77
78
79
79
81
83
84
84
84
84
83
84
84
82
84
84

Pressure (mb)

1020
1020
1020
1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1017

Ozone (du)

378
381
385
388
392
395
398
391
385
379
378
378
378
375
373
370
370
369
369
353
338
322
315
308

Wednesday 7

Waning Gibbous 74%

21:39

10:23

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

Sun - Rise: 08:09, Set: 16:16, Transit: 12:13. Moon - Rise: 21:39, Set: 10:23. Civil Dark: 16:55 - 07:30. Nautical Dark: 17:38 - 06:48. Astro Dark: 18:18 - 06:08

Total Clouds (% Sky Obscured)

90
90
91
70
49
28
30
33
35
25
15
15
25
30
35
51
70
86
89
90
92

Low Clouds (% Sky Obscured)

23
11
0
8
16
24
20
16
16
17
15
15
25
25
25
40
57
78
79
82
84

Medium Clouds (% Sky Obscured)

60
76
90
70
49
28
30
33
35
25
15
12
20
26
29
39
45
40
42
43
55

High Clouds (% Sky Obscured)

38
37
36
33
19
10
5
10
35
25
15
15
25
30
35
20
15
15
10
10
15

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
8
6
4
3
1
0
0
0

Fog (%)

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

Precipitation Probability (%)

0
0
0
0
0
1
7
15
22
27
27
24
17
11
5
13
15
17
14
11
7

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-7
-6
-7
-7
-2
-2
-3
-3
-3
-2
-2
-2
-2
-2
-2
-3
-1
-1
-1
-1
-2

Dew Point (°C)

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

Relative Humidity (%)

84
84
84
81
86
88
89
93
94
96
96
96
96
98
98
98
98
98
98
98
98

Pressure (mb)

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

Ozone (du)

301
301
300
299
297
296
294
294
295
295
296
297
298
298
299
299
299
299
299
299
299

Forecast for Marlborough, Wiltshire, United Kingdom (51.42,-1.73)

Generated: 01/01/26 09:48:16. Forecast: 01/01/26 to 07/01/26. Timezone: UTC+0.00