Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 8

Waning Gibbous 77%

21:18

11:49

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
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 07:59, Set: 15:51, Transit: 11:55. Moon - Rise: 21:18, Set: 11:49. Civil Dark: 16:32 - 07:19. Nautical Dark: 17:15 - 06:35. Astro Dark: 17:56 - 05:54

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
96
99
92
96
79
69
65
62
50
56

Low Clouds (% Sky Obscured)

51
84
87
90
69
87
85
81
84
78
79
96
81
100
86
84
83
68
52
67
63
60
37
41

Medium Clouds (% Sky Obscured)

45
85
99
100
100
100
100
100
100
98
82
90
73
54
78
41
43
95
54
7
35
49
50
8

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
82
100
51
100
100
100
83
86
55
61
14
15
21
0
50
44

ISS Passover

Visibility (miles)

9
7
9
9
6
5
3
3
2
8
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
Light Rain
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

9
71
95
46
67
95
95
95
95
83
72
32
21
35
29
25
12
8
18
21
17
0
1
0

Precipitation Amount (mm)

0
0.3
1.2
0
0.3
1.1
1
2.3
1.1
0.5
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
8
9
11
16
17
19
21
22
22
22
21
21
21
22
21
22
24
25
25
23
20
18
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
95
93
92
90
84
87
88
90
90
84
86
84
79
79
84
87
87
87
89
84
79
84
84

Pressure (mb)

1008
1007
1007
1007
1006
1006
1005
1004
1003
1002
1002
1002
1001
1001
1000
999
999
998
999
999
1001
1002
1004
1005

Ozone (du)

317
315
312
305
303
300
294
288
287
288
289
290
289
287
285
284
283
281
281
282
282
282
282
282

Tuesday 9

Waning Gibbous 67%

No Rise

12:03

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
13 Bad
14 OK
15 OK
16 Bad
17 Bad
18 OK
19 OK
20 Bad
21 Bad

Sun - Rise: 08:00, Set: 15:51, Transit: 11:56. Moon - Rise: No Rise, Set: 12:03. Civil Dark: 16:31 - 07:20. Nautical Dark: 17:15 - 06:36. Astro Dark: 17:56 - 05:55

Total Clouds (% Sky Obscured)

100
91
44
35
53
55
60
62
64
64
65
68
62
73
46
60
38
41
39
38
33
31
98
71

Low Clouds (% Sky Obscured)

40
46
38
27
51
53
60
60
62
62
63
60
60
72
46
58
38
41
39
26
30
31
40
39

Medium Clouds (% Sky Obscured)

1
0
0
0
0
2
0
0
0
0
0
6
0
0
0
0
0
0
0
13
4
0
17
24

High Clouds (% Sky Obscured)

34
37
44
35
53
55
60
62
60
55
55
55
50
33
0
0
0
0
0
0
0
1
85
23

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
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
7
8
8
8
8
8
8
8
8
8
8
9
9
9
9
8
8
8
8
7
7
7
7

Relative Humidity (%)

80
82
90
90
90
91
93
93
91
93
93
90
88
86
84
83
80
84
90
93
93
93
95
93

Pressure (mb)

1006
1007
1007
1008
1008
1009
1009
1009
1010
1010
1011
1012
1013
1013
1014
1014
1015
1015
1017
1018
1018
1019
1019
1020

Ozone (du)

283
282
282
282
283
284
286
290
293
295
297
300
303
304
308
313
317
318
315
313
312
310
311
311

Wednesday 10

Waning Gibbous 57%

22:38

12:15

22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 OK
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

Sun - Rise: 08:01, Set: 15:51, Transit: 11:56. Moon - Rise: 22:38, Set: 12:15. Civil Dark: 16:31 - 07:21. Nautical Dark: 17:15 - 06:37. Astro Dark: 17:56 - 05:56

Total Clouds (% Sky Obscured)

97
96
46
87
85
37
67
54
49
58
65
68
58
83
85
85
83
80
87
73
82
92
100
97

Low Clouds (% Sky Obscured)

43
47
37
34
36
37
56
48
49
58
65
68
58
72
74
74
71
69
75
58
55
61
68
68

Medium Clouds (% Sky Obscured)

0
2
0
46
50
0
0
0
0
0
0
0
0
0
0
0
1
60
55
50
53
50
54
58

High Clouds (% Sky Obscured)

74
63
13
46
4
2
26
13
3
6
2
0
1
50
50
60
54
45
40
42
58
55
81
66

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
1
11
44
42

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
5
5
5
5
4
4
3
4
5
5
6
7
8
6
7
7
6
5
5
5
5
6
5

Dew Point (°C)

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

Relative Humidity (%)

94
94
94
93
93
91
91
93
93
94
96
96
96
91
90
90
91
93
93
93
95
95
95
96

Pressure (mb)

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

Ozone (du)

307
304
303
302
302
302
299
300
300
299
300
302
301
300
302
303
304
305
307
309
311
309
307
304

Thursday 11

Third Quarter 46%

23:54

12:25

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
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 08:02, Set: 15:51, Transit: 11:57. Moon - Rise: 23:54, Set: 12:25. Civil Dark: 16:31 - 07:22. Nautical Dark: 17:15 - 06:38. Astro Dark: 17:56 - 05:57

Total Clouds (% Sky Obscured)

93
88
91
96
100
100
100
100
99
99
99
99
99
98
95
99
99
100
100
99
95
100
100
97

Low Clouds (% Sky Obscured)

69
69
69
70
68
68
70
72
78
86
94
83
70
58
62
67
68
38
18
1
2
20
6
7

Medium Clouds (% Sky Obscured)

60
58
36
61
80
84
94
95
94
93
93
94
95
86
77
97
90
59
81
87
63
94
98
95

High Clouds (% Sky Obscured)

52
51
58
83
100
93
87
81
59
36
20
25
30
40
41
52
48
71
83
90
80
82
76
59

ISS Passover

Visibility (miles)

7
4
1
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

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

Precipitation Probability (%)

51
12
3
6
16
9
4
1
6
5
3
6
14
20
45
65
73
64
37
6
2
1
0
1

Precipitation Amount (mm)

0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.3
0.3
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
98
93
93
93
93
87
90
90
91
91
90
87
84
81
80
82
88
88
87
90
90
90

Pressure (mb)

1013
1013
1012
1012
1012
1011
1011
1011
1011
1011
1011
1011
1012
1012
1012
1012
1013
1013
1014
1015
1016
1016
1017
1017

Ozone (du)

302
303
305
307
308
308
308
308
309
309
311
311
313
314
315
317
318
318
321
324
325
328
330
332

Friday 12

Waning Crescent 36%

01:08

12:34

22 Bad
23 Bad
00 Bad
01 Bad
02 OK
03 OK
04 OK
05 OK
06 OK
07 OK
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

Sun - Rise: 08:03, Set: 15:51, Transit: 11:57. Moon - Rise: 01:08, Set: 12:34. Civil Dark: 16:32 - 07:23. Nautical Dark: 17:15 - 06:39. Astro Dark: 17:56 - 05:58

Total Clouds (% Sky Obscured)

94
90
72
54
36
39
35
35
30
33
41
47
34
42
52
57
66
74
75
77
68
58
49
54

Low Clouds (% Sky Obscured)

17
27
30
21
19
22
26
30
25
21
15
18
22
26
35
43
52
57
62
67
61
55
49
53

Medium Clouds (% Sky Obscured)

94
90
72
54
36
39
30
25
15
25
30
30
18
25
36
38
35
29
25
21
13
5
0
7

High Clouds (% Sky Obscured)

37
20
30
28
25
20
20
20
20
16
25
25
0
0
0
0
0
0
0
0
14
33
45
49

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 (%)

3
2
1
0
0
0
0
0
0
0
1
2
1
2
13
15
14
9
4
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
6
6
6
6
7
7
7
7
7
8
9
10
11
11
11
11
11
11
11
11
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
86
85
83
83
83
83
83
85
86
88
91
91
88
87
87
88
88
91
93
95
94
94
94

Pressure (mb)

1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1020
1020
1020
1021
1021
1020
1020
1020
1020
1020
1021
1021
1021
1021

Ozone (du)

331
331
331
329
329
331
335
341
354
362
367
379
391
397
404
397
390
383
374
366
357
353
349
345

Saturday 13

Waning Crescent 27%

02:20

12:45

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
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 08:04, Set: 15:51, Transit: 11:58. Moon - Rise: 02:20, Set: 12:45. Civil Dark: 16:32 - 07:23. Nautical Dark: 17:15 - 06:40. Astro Dark: 17:57 - 05:59

Total Clouds (% Sky Obscured)

59
63
72
80
89
87
88
86
85
84
85
86
88
88
88
91
94
96
98
100
100
100
100
100

Low Clouds (% Sky Obscured)

56
60
58
56
54
60
66
74
77
78
80
78
77
74
79
84
89
87
85
83
87
89
92
92

Medium Clouds (% Sky Obscured)

15
22
29
35
35
36
36
49
42
24
4
4
3
2
7
9
12
20
28
36
57
79
99
99

High Clouds (% Sky Obscured)

48
52
62
67
78
61
41
21
12
9
5
5
5
5
5
5
10
40
68
100
100
100
100
84

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
4
7
8
10
13
16
15
2
4
9
6
43

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

6
6
6
6
7
7
7
7
8
7
8
7
8
8
8
8
8
8
7
7
7
7
7
7

Relative Humidity (%)

93
93
91
91
91
91
93
95
96
95
95
93
93
93
91
90
91
91
90
88
87
84
82
80

Pressure (mb)

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

Ozone (du)

340
335
330
327
324
321
319
317
315
316
317
318
317
316
315
314
313
313
309
305
301
298
295
292

Sunday 14

Waning Crescent 19%

03:32

12:57

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
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 08:05, Set: 15:51, Transit: 11:58. Moon - Rise: 03:32, Set: 12:57. Civil Dark: 16:32 - 07:24. Nautical Dark: 17:16 - 06:41. Astro Dark: 17:57 - 05:59

Total Clouds (% Sky Obscured)

100
100
96
92
87
92
96
100
96
91
87
75
69
62
77
94
100
100
100
100

Low Clouds (% Sky Obscured)

92
91
89
88
87
83
78
74
74
73
74
63
54
43
56
68
81
81
81
84

Medium Clouds (% Sky Obscured)

100
100
87
73
50
73
90
100
96
91
87
75
69
62
77
89
91
90
94
100

High Clouds (% Sky Obscured)

74
71
61
50
45
40
45
50
50
50
55
50
45
40
53
77
100
99
97
95

ISS Passover

Visibility (miles)

8
6
4
4
4
3
5
7
9
8
6
4
5
6
8
8
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

Precipitation Type

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

Precipitation Probability (%)

70
95
95
95
95
83
71
62
80
94
95
95
95
95
95
87
78
62
44
33

Precipitation Amount (mm)

0.3
0.8
0.8
0.7
0.7
0.5
0.3
0.3
0.5
0.7
0.9
0.8
0.9
0.8
0.7
0.6
0.5
0.3
0
0

Wind Speed/Direction (mph)

17
17
17
16
16
16
15
15
14
14
15
16
15
15
15
14
14
14
15
16

Chance of Frost

Temperature (°C)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
11
11
11
11

Feels Like (°C)

5
5
5
4
4
5
5
5
5
5
5
6
6
6
6
5
6
6
6
6

Dew Point (°C)

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

Relative Humidity (%)

82
87
90
90
91
91
93
93
95
93
95
93
95
95
95
91
91
91
91
90

Pressure (mb)

1010
1009
1009
1008
1008
1008
1008
1007
1007
1006
1006
1006
1006
1006
1005
1005
1004
1004
1003
1003

Ozone (du)

292
291
290
290
289
289
290
292
293
294
295
296
295
295
294
293
292
290
291
292

Forecast for Loughton, Milton Keynes, United Kingdom (52.03,-0.77)

Generated: 08/12/25 22:54:37. Forecast: 08/12/25 to 14/12/25. Timezone: UTC+0.00