Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 9

Waning Gibbous 67%

21:17

12:04

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 08:02, Set: 15:51, Transit: 11:56. Moon - Rise: 21:17, Set: 12:04. Civil Dark: 16:31 - 07:21. Nautical Dark: 17:15 - 06:37. Astro Dark: 17:56 - 05:56

Total Clouds (% Sky Obscured)

93
93
96
86
88
90
71
56
77
55
61
100
78
100
92
67
64
59
54
53
56
51
66
54

Low Clouds (% Sky Obscured)

75
86
86
66
70
68
54
34
34
28
34
42
45
52
54
56
60
59
54
53
54
51
66
51

Medium Clouds (% Sky Obscured)

91
46
55
60
15
61
64
14
27
0
0
0
0
0
3
11
4
0
0
0
0
0
0
2

High Clouds (% Sky Obscured)

76
93
48
4
2
6
2
2
4
45
51
100
55
100
82
45
55
59
54
53
44
2
0
0

ISS Passover

Visibility (miles)

2
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

Light Rain
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 (%)

77
14
1
23
23
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.5
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)

19
20
19
24
24
24
22
21
20
18
17
16
16
16
15
15
16
16
15
15
15
15
16
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
90
87
87
87
80
77
80
80
81
84
84
85
87
88
88
90
88
90
90
90
88
88
85

Pressure (mb)

999
998
998
998
998
999
1000
1002
1003
1004
1005
1005
1006
1006
1007
1007
1008
1008
1009
1009
1010
1011
1012
1013

Ozone (du)

282
283
283
283
282
282
282
283
283
284
284
285
286
287
289
289
291
293
295
301
301
303
305
310

Wednesday 10

Waning Gibbous 57%

22:38

12:04

12 Bad
13 OK
14 Bad
15 Bad
16 OK
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

Sun - Rise: 08:03, Set: 15:50, Transit: 11:57. Moon - Rise: 22:38, Set: 12:04. Civil Dark: 16:31 - 07:22. Nautical Dark: 17:15 - 06:38. Astro Dark: 17:56 - 05:57

Total Clouds (% Sky Obscured)

48
37
45
45
31
44
100
100
100
100
100
100
86
49
56
96
83
100
100
100
69
92
100
88

Low Clouds (% Sky Obscured)

44
37
45
45
31
44
25
46
29
37
52
52
51
36
45
51
54
50
72
71
68
76
73
87

Medium Clouds (% Sky Obscured)

4
0
0
0
0
3
65
55
60
67
92
44
49
39
28
58
2
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
1
3
0
100
100
100
100
100
48
49
48
82
76
100
59
56
8
29
43
11

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)

18
17
17
15
12
12
13
12
12
13
12
12
12
12
11
10
10
11
11
12
12
13
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
80
81
81
85
87
88
88
90
91
93
93
93
91
91
91
93
96
96
96
94
94
90
88

Pressure (mb)

1013
1013
1014
1015
1016
1017
1017
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1017
1018
1018
1017

Ozone (du)

324
324
322
318
317
318
316
313
308
305
304
304
303
302
302
299
299
300
299
299
297
297
295
292

Thursday 11

Third Quarter 46%

23:55

12:15

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 08:04, Set: 15:50, Transit: 11:57. Moon - Rise: 23:55, Set: 12:15. Civil Dark: 16:31 - 07:23. Nautical Dark: 17:15 - 06:39. Astro Dark: 17:56 - 05:58

Total Clouds (% Sky Obscured)

70
96
95
90
68
73
79
71
74
100
100
100
100
100
100
99
99
97
98
99
99
100
100
100

Low Clouds (% Sky Obscured)

67
67
56
55
62
56
57
68
70
72
67
71
67
67
70
87
93
91
84
61
68
81
85
86

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
3
80
80
85
80
90
92
93
33
93
95
84
83
100
100
100

High Clouds (% Sky Obscured)

21
55
57
52
36
43
65
60
70
100
100
100
100
100
99
82
35
35
25
64
71
77
68
87

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
1
1
0
19
7
3
1
1
4
6
16
32
31

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)

15
14
13
12
11
11
12
11
12
12
12
12
11
11
11
11
12
11
11
11
11
10
10
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
85
85
88
93
95
95
95
95
95
95
95
93
95
95
96
96
93
90
87
91
91
91
90

Pressure (mb)

1016
1016
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1013
1013
1013
1013
1013
1012
1013
1013
1013
1014
1014
1015

Ozone (du)

289
288
288
289
293
298
305
307
306
304
303
302
301
300
302
303
304
305
306
307
307
308
310
311

Friday 12

Waning Crescent 36%

01:08

12:25

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
04 Good
05 Good
06 Good
07 OK
08 OK
09 OK
10 OK
11 OK

Sun - Rise: 08:05, Set: 15:50, Transit: 11:58. Moon - Rise: 01:08, Set: 12:25. Civil Dark: 16:31 - 07:24. Nautical Dark: 17:15 - 06:40. Astro Dark: 17:56 - 05:59

Total Clouds (% Sky Obscured)

100
100
100
98
82
100
55
59
56
52
79
65
53
40
0
0
0
0
9
15
21
24
29
34

Low Clouds (% Sky Obscured)

84
81
63
33
22
9
6
3
0
0
0
0
0
0
0
0
0
0
6
13
20
24
29
34

Medium Clouds (% Sky Obscured)

100
96
82
50
55
60
44
27
12
14
63
55
50
35
0
0
0
0
2
0
0
0
0
0

High Clouds (% Sky Obscured)

97
99
100
98
82
100
55
59
56
52
73
64
53
40
0
0
0
0
0
0
0
1
4
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

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

Precipitation Probability (%)

61
79
91
84
63
32
11
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.2
0.5
0.8
0.7
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
6
5
4
5
6
7
6
6
6
6
5
5
5
5
6
6
6
6
7
7
9
10
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
82
81
81
85
88
90
90
91
91
93
93
93
93
94
93
94
93
94
93
93
94
86
82

Pressure (mb)

1015
1015
1016
1016
1017
1018
1018
1019
1020
1021
1021
1022
1022
1022
1023
1023
1023
1024
1024
1024
1025
1025
1025
1025

Ozone (du)

313
315
319
322
324
327
326
329
331
333
332
341
347
357
374
377
376
371
368
363
360
357
355
348

Saturday 13

Waning Crescent 27%

02:21

12:35

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 08:06, Set: 15:50, Transit: 11:58. Moon - Rise: 02:21, Set: 12:35. Civil Dark: 16:31 - 07:25. Nautical Dark: 17:15 - 06:41. Astro Dark: 17:57 - 05:59

Total Clouds (% Sky Obscured)

47
51
54
53
50
53
54
66
69
80
90
100
97
92
87
66
61
52
50
51
49
65
82
97

Low Clouds (% Sky Obscured)

37
37
38
37
36
33
35
38
40
45
49
55
54
53
52
52
52
52
50
48
46
52
59
65

Medium Clouds (% Sky Obscured)

0
0
0
0
1
9
2
0
0
0
0
0
6
15
26
23
18
11
23
33
38
23
12
0

High Clouds (% Sky Obscured)

25
25
15
13
16
21
17
18
25
53
75
100
81
65
43
36
28
25
30
30
30
49
67
88

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
1
0
2
0
1
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
13
13
12
12
12
12
13
13
14
14
14
14
14
14
14
14
14
14
14
14
15
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5

Relative Humidity (%)

79
79
79
82
87
90
91
93
93
93
91
90
90
90
91
91
90
91
91
91
91
90
87
82

Pressure (mb)

1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1024
1024
1024
1023
1023
1023
1022
1022
1022
1022
1022
1021

Ozone (du)

344
340
336
332
328
325
321
319
319
315
311
306
303
303
302
301
300
299
298
298
297
296
297
297

Sunday 14

Waning Crescent 19%

03:33

12:45

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 08:07, Set: 15:50, Transit: 11:59. Moon - Rise: 03:33, Set: 12:45. Civil Dark: 16:31 - 07:26. Nautical Dark: 17:15 - 06:42. Astro Dark: 17:57 - 06:00

Total Clouds (% Sky Obscured)

91
86
80
74
67
68
72
72
68
69
65
55
62
69
75
79
71
67
62
57
61
63
66
65

Low Clouds (% Sky Obscured)

70
68
64
68
67
68
72
71
68
67
65
55
62
69
75
75
66
52
54
57
61
63
62
60

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
3
15
34
47
50
33
20
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

67
45
24
16
7
1
0
0
0
28
55
55
62
69
75
64
38
12
13
10
1
12
24
38

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
2
1
7
15
26
44
46
35
24
16
10
3
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
16
15
15
13
13
12
12
13
13
13
13
13
13
12
12
12
11
11
10
10
10
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
81
85
88
90
93
95
93
93
91
93
93
93
93
93
95
95
93
93
95
93
95
93
93

Pressure (mb)

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

Ozone (du)

298
298
299
299
301
302
303
306
309
312
316
320
324
321
317
314
315
316
317
323
328
334
331
329

Monday 15

Waning Crescent 12%

04:47

12:57

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: 08:07, Set: 15:51, Transit: 11:59. Moon - Rise: 04:47, Set: 12:57. Civil Dark: 16:32 - 07:26. Nautical Dark: 17:16 - 06:42. Astro Dark: 17:57 - 06:01

Total Clouds (% Sky Obscured)

73
82
90
93
96
98
98
99
100
100
100
100
99
99
98
99
99
100

Low Clouds (% Sky Obscured)

66
71
75
76
78
79
83
86
89
77
62
54
65
76
83
79
67
52

Medium Clouds (% Sky Obscured)

3
7
10
20
21
29
37
40
45
37
37
34
41
45
55
57
67
67

High Clouds (% Sky Obscured)

46
57
67
72
80
86
91
95
100
100
100
100
82
59
31
51
70
92

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

0
0
0
1
0
0
0
1
0
0
1
0
4
12
19
40
54
59

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

12
12
12
13
13
12
12
12
13
13
12
13
13
13
13
13
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
93
93
95
95
95
96
96
96
95
95
95
95
95
95
93
93
95

Pressure (mb)

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

Ozone (du)

326
324
321
319
315
312
308
307
305
303
303
302
302
303
305
307
309
311

Forecast for Northampton, Northamptonshire, United Kingdom (52.24,-0.89)

Generated: 09/12/25 12:28:19. Forecast: 09/12/25 to 15/12/25. Timezone: UTC+0.00