Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 7

Waning Gibbous 86%

18:22

11:31

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: 08:00, Set: 15:52, Transit: 11:56. Moon - Rise: 18:22, Set: 11:31. Civil Dark: 16:32 - 07:20. Nautical Dark: 17:16 - 06:36. Astro Dark: 17:57 - 05:55

Total Clouds (% Sky Obscured)

91
93
95
96
98
85
75
71
64
67
40
63
51
78
66
77
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

91
73
87
96
63
61
65
60
64
67
40
46
42
72
44
35
56
56
57
57
58
66
64
65

Medium Clouds (% Sky Obscured)

91
93
95
96
96
74
0
0
0
0
0
0
2
4
2
0
3
4
51
53
78
100
100
100

High Clouds (% Sky Obscured)

91
93
95
94
48
51
43
47
15
0
0
0
7
49
49
71
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

0
0
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
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 (%)

95
80
40
37
8
3
5
1
0
0
0
1
0
0
0
0
0
9
24
2
0
1
8
10

Precipitation Amount (mm)

0.9
0.3
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
17
18
19
20
18
17
15
15
15
14
15
13
13
14
15
14
14
14
14
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
95
93
89
89
84
84
86
85
88
90
85
87
88
91
93
90
90
87
87
84
85
85

Pressure (mb)

998
997
996
996
996
996
997
999
1000
1002
1003
1003
1004
1005
1005
1005
1005
1005
1005
1005
1006
1006
1007
1007

Ozone (du)

286
286
284
287
289
288
291
293
296
298
301
302
301
300
299
301
305
308
311
315
317
321
326
329

Monday 8

Waning Gibbous 77%

19:52

11:51

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: 08:01, Set: 15:52, Transit: 11:56. Moon - Rise: 19:52, Set: 11:51. Civil Dark: 16:32 - 07:21. Nautical Dark: 17:16 - 06:37. Astro Dark: 17:57 - 05:56

Total Clouds (% Sky Obscured)

100
100
100
100
57
100
100
100
100
96
100
100
100
100
100
100
100
100
100
100
100
99
99
99

Low Clouds (% Sky Obscured)

66
68
70
61
55
51
53
54
55
63
75
58
76
74
89
81
85
81
80
83
72
78
80
99

Medium Clouds (% Sky Obscured)

100
100
100
100
57
48
42
21
59
89
79
71
100
95
100
99
100
100
100
98
91
95
89
86

High Clouds (% Sky Obscured)

70
100
100
60
57
100
100
100
100
72
100
100
100
100
100
100
100
98
100
86
100
86
95
50

ISS Passover

Visibility (miles)

9
9
9
9
8
4
7
9
9
9
9
9
9
8
9
5
7
6
5
8
5
9
3
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
Light Rain
Light Rain
None
None
None
None
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
None

Precipitation Probability (%)

14
11
41
40
56
64
55
14
7
3
5
17
29
57
95
95
95
95
95
95
87
71
85
7

Precipitation Amount (mm)

0
0
0
0
0.4
0.4
0
0
0
0
0
0
0
0
0.7
0.6
0.8
0.7
0.8
0.9
0.4
0.3
0.7
0

Wind Speed/Direction (mph)

15
15
13
13
11
9
11
13
13
13
13
11
9
10
13
14
16
19
22
24
24
24
23
23

Chance of Frost

Temperature (°C)

11
12
11
11
11
10
10
10
10
10
10
10
10
10
11
11
12
12
12
12
11
12
12
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
84
84
87
91
95
93
90
90
90
91
91
96
96
95
95
95
92
89
90
92
90
90
89

Pressure (mb)

1007
1007
1007
1007
1007
1007
1008
1008
1008
1009
1009
1009
1008
1007
1007
1006
1005
1004
1003
1002
1002
1001
1001
1001

Ozone (du)

331
330
337
339
334
328
330
331
329
326
325
322
322
317
311
303
295
295
297
296
296
295
293
292

Tuesday 9

Waning Gibbous 67%

21:18

12:05

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 OK
11 OK

Sun - Rise: 08:02, Set: 15:51, Transit: 11:57. Moon - Rise: 21:18, Set: 12:05. Civil Dark: 16:32 - 07:22. Nautical Dark: 17:16 - 06:38. Astro Dark: 17:57 - 05:57

Total Clouds (% Sky Obscured)

100
100
96
89
100
89
96
100
95
100
95
95
97
100
100
100
100
100
100
65
65
48
38
41

Low Clouds (% Sky Obscured)

100
100
71
64
58
59
57
67
52
61
61
56
63
64
62
68
61
63
65
49
49
41
33
41

Medium Clouds (% Sky Obscured)

78
45
58
85
89
64
95
96
94
100
95
95
66
29
30
30
34
1
10
15
22
15
10
0

High Clouds (% Sky Obscured)

58
77
68
44
76
4
37
46
48
39
43
46
66
48
51
50
65
65
67
65
65
48
26
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
7
9
9
9
9
9
9
9
8
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
Very Light Rain
Light Rain
None
None
None
None
None
None
None
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

4
4
15
28
27
23
31
65
89
15
4
36
11
20
21
23
52
19
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.3
0.7
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

22
21
21
20
20
18
17
16
16
16
16
15
16
16
16
14
13
19
16
14
14
14
14
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
87
89
87
89
89
88
90
91
88
87
83
83
85
90
93
85
81
81
85
85
84
84

Pressure (mb)

1001
1000
1000
1000
1001
1001
1002
1002
1002
1003
1003
1002
1002
1002
1002
1002
1002
1004
1006
1008
1010
1011
1012
1013

Ozone (du)

290
288
286
286
285
285
284
283
282
285
288
289
289
289
288
288
288
290
290
292
297
298
300
300

Wednesday 10

Waning Gibbous 57%

22:39

12:05

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

Sun - Rise: 08:03, Set: 15:51, Transit: 11:57. Moon - Rise: 22:39, Set: 12:05. Civil Dark: 16:32 - 07:23. Nautical Dark: 17:16 - 06:39. Astro Dark: 17:57 - 05:58

Total Clouds (% Sky Obscured)

62
73
69
64
39
19
21
22
23
30
33
25
26
29
31
38
61
59
63
67
62
73
79
77

Low Clouds (% Sky Obscured)

59
66
63
57
38
19
21
22
23
30
32
25
26
29
31
32
33
37
41
44
53
72
78
77

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
2
0
1
1
1
1
3
0
2
30
17
23
22
11
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
0
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
10
1
0
0
1
1
2
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
13
12
11
10
11
9
8
7
7
7
6
6
6
6
7
7
7
8
9
9
11
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
5
5
6
6
6
5
6
5
5
5
4
4
4
4
4
3
1
2
2
2
3
4
4

Dew Point (°C)

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

Relative Humidity (%)

83
77
80
83
85
91
91
95
94
94
94
96
96
94
94
94
94
93
94
94
94
96
93
90

Pressure (mb)

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

Ozone (du)

300
301
308
308
308
307
307
305
306
305
306
304
305
307
307
307
308
310
310
311
313
316
319
326

Thursday 11

Third Quarter 46%

23:55

12:16

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: 15:51, Transit: 11:58. Moon - Rise: 23:55, Set: 12:16. Civil Dark: 16:32 - 07:24. Nautical Dark: 17:16 - 06:40. Astro Dark: 17:57 - 05:58

Total Clouds (% Sky Obscured)

77
77
74
83
91
100
100
96
100
100
99
99
100
100
100
100
100
100
89
79
69
70
72
72

Low Clouds (% Sky Obscured)

71
62
53
53
54
52
58
71
78
78
79
80
79
78
77
84
92
100
75
50
25
17
8
0

Medium Clouds (% Sky Obscured)

6
12
17
72
87
96
100
91
100
97
90
76
70
60
48
57
69
83
65
55
43
46
51
55

High Clouds (% Sky Obscured)

15
25
15
10
10
10
36
57
76
49
38
17
19
25
25
50
75
100
84
67
51
54
55
60

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
7
7
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
Very Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

2
1
0
2
1
0
2
7
12
32
11
7
13
15
24
54
75
87
71
46
20
11
7
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.5
0.3
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
90
90
95
95
95
95
96
96
98
98
98
96
96
96
96
96
95
93
91
90
90
88

Pressure (mb)

1018
1017
1016
1016
1015
1015
1015
1015
1014
1014
1013
1013
1012
1012
1012
1011
1011
1011
1011
1011
1012
1013
1013
1013

Ozone (du)

325
321
318
316
315
314
311
305
305
304
306
304
303
304
305
305
305
305
305
306
307
308
310
313

Friday 12

Waning Crescent 36%

01:09

12:26

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: 08:05, Set: 15:51, Transit: 11:58. Moon - Rise: 01:09, Set: 12:26. Civil Dark: 16:32 - 07:24. Nautical Dark: 17:16 - 06:41. Astro Dark: 17:57 - 05:59

Total Clouds (% Sky Obscured)

83
91
100
80
60
30
29
34
43
47
54
64
71
78
85
86
81
63
68
73
83
89
95
99

Low Clouds (% Sky Obscured)

0
4
11
14
17
20
24
34
40
35
20
10
21
31
40
61
81
63
68
73
74
78
80
81

Medium Clouds (% Sky Obscured)

58
62
66
61
58
30
29
34
43
47
54
64
59
66
76
63
56
41
49
50
58
64
67
75

High Clouds (% Sky Obscured)

73
87
100
77
50
20
15
10
10
15
15
15
13
16
14
13
12
12
8
4
1
31
61
91

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

Precipitation Probability (%)

1
1
0
8
15
23
40
57
72
65
50
23
14
8
6
8
12
10
10
14
18
21
27
30

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.2
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

7
7
7
7
7
6
6
5
5
5
5
5
4
5
5
6
6
7
7
8
8
9
9
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
87
85
85
88
90
91
91
91
90
89
88
86
88
90
91
88
87
85
87
90
90
88
88

Pressure (mb)

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

Ozone (du)

316
317
317
318
318
317
317
316
315
314
315
317
318
326
335
344
342
340
338
339
341
342
343
343

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

Sun - Rise: 08:06, Set: 15:51, Transit: 11:59. Moon - Rise: 02:21, Set: 12:35. Civil Dark: 16:32 - 07:25. Nautical Dark: 17:16 - 06:41. Astro Dark: 17:57 - 06:00

Total Clouds (% Sky Obscured)

98
96
95
96
98
100
97
94
91
86
80
77
84
74
70
79
93
97

Low Clouds (% Sky Obscured)

84
87
90
88
85
82
88
94
91
86
80
77
84
74
70
79
88
73

Medium Clouds (% Sky Obscured)

79
82
85
80
67
54
47
35
21
29
49
62
57
48
48
60
73
77

High Clouds (% Sky Obscured)

78
65
47
51
59
43
44
42
43
38
43
36
65
74
70
77
71
62

ISS Passover

Visibility (miles)

9
8
7
6
7
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

49
65
81
95
95
95
94
70
24
19
16
1
11
17
19
15
12
14

Precipitation Amount (mm)

0
0.3
0.4
0.6
0.8
1
0.6
0.3
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

17
18
19
20
18
17
19
18
16
15
15
15
15
14
14
14
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

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

Ozone (du)

344
345
346
347
346
344
342
341
340
339
340
340
341
337
332
328
325
323

Forecast for Nether Heyford, Northamptonshire, United Kingdom (52.22,-1.04)

Generated: 07/12/25 12:56:39. Forecast: 07/12/25 to 13/12/25. Timezone: UTC+0.00