Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 8

Waning Gibbous 77%

19:52

11:31

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

Sun - Rise: 08:00, Set: 15:52, Transit: 11:56. Moon - Rise: 19:52, Set: 11:31. Civil Dark: 16:32 - 07:20. Nautical Dark: 17:16 - 06:37. Astro Dark: 17:57 - 05:56

Total Clouds (% Sky Obscured)

80
85
88
91
100
100
100
100
100
100
98
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

59
61
60
67
49
68
69
60
65
59
47
64
69
95
87
87
83
83
83
81
85
80
85
79

Medium Clouds (% Sky Obscured)

80
85
72
91
100
60
94
80
79
78
75
36
100
89
57
53
44
93
98
100
100
100
100
96

High Clouds (% Sky Obscured)

80
85
59
89
90
100
100
100
100
100
86
100
100
100
100
100
100
100
100
100
100
80
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
6
4
6

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
Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

1
6
15
1
6
2
1
7
36
29
11
26
15
15
17
41
74
66
72
95
95
95
95
93

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.2
0.2
0.7
0.6
1
1.1
0.4

Wind Speed/Direction (mph)

11
12
14
15
16
15
14
13
12
11
11
11
11
12
12
12
12
13
14
16
18
20
22
23

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
10
9
9
9
10
10
10
10
10
10
9
9
10
10
10
10
11
11
11
11
10
10
9

Relative Humidity (%)

86
88
86
86
84
84
84
86
87
91
93
93
91
91
91
91
90
96
95
93
93
90
88
87

Pressure (mb)

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

Ozone (du)

311
314
320
323
325
325
327
328
329
327
327
324
321
318
320
322
319
316
315
307
297
292
293
290

Tuesday 9

Waning Gibbous 67%

21:18

11:51

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

Sun - Rise: 08:01, Set: 15:51, Transit: 11:56. Moon - Rise: 21:18, Set: 11:51. Civil Dark: 16:32 - 07:21. Nautical Dark: 17:16 - 06:38. Astro Dark: 17:57 - 05:57

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
83
99
81
47
55
80
89
71
69
97
99
100
100
83
72
59
69

Low Clouds (% Sky Obscured)

80
94
94
100
100
100
100
70
97
73
43
37
40
51
51
48
42
49
51
65
68
72
59
69

Medium Clouds (% Sky Obscured)

81
60
83
42
33
94
98
66
60
30
36
55
70
80
27
12
1
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

90
100
100
88
95
83
46
33
50
53
47
55
29
48
42
19
95
86
50
100
74
8
2
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 (%)

74
56
29
8
4
45
30
27
24
30
36
21
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

24
23
23
23
24
23
24
25
24
24
23
21
18
17
16
15
15
14
14
14
14
13
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
10
10
11
11
11
12
12
13
12
12
10
8
8
8
8
7
8
7
7
7
8
8
8

Relative Humidity (%)

88
87
87
87
87
87
89
89
89
89
90
90
84
87
88
88
90
91
91
93
91
93
95
95

Pressure (mb)

1000
1000
1000
1000
999
998
998
998
998
998
999
1001
1002
1004
1005
1006
1007
1007
1008
1009
1009
1009
1010
1010

Ozone (du)

291
293
293
294
294
292
289
286
284
282
281
283
284
281
281
283
284
285
285
285
287
289
292
295

Wednesday 10

Waning Gibbous 57%

22:39

12:05

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

Sun - Rise: 08:02, Set: 15:51, Transit: 11:57. Moon - Rise: 22:39, Set: 12:05. Civil Dark: 16:32 - 07:22. Nautical Dark: 17:16 - 06:39. Astro Dark: 17:57 - 05:58

Total Clouds (% Sky Obscured)

60
61
59
55
37
36
48
40
19
55
27
19
48
28
40
54
25
53
73
58
53
46
46
47

Low Clouds (% Sky Obscured)

59
61
59
55
37
36
48
40
19
11
27
19
15
9
0
0
0
11
22
29
31
28
30
33

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
13
0
0
11
21
45
34
1
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
55
0
0
4
28
40
35
25
53
61
58
53
46
46
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
93
93
90
87
83
83
84
85
85
88
91
90
91
91
93
93
93
93
93
94
93
89
91

Pressure (mb)

1011
1011
1012
1013
1013
1014
1014
1015
1016
1017
1018
1019
1020
1020
1021
1021
1022
1022
1022
1022
1022
1021
1021
1021

Ozone (du)

295
300
302
304
306
310
313
310
312
312
312
313
312
311
311
305
301
300
299
298
297
297
298
300

Thursday 11

Third Quarter 46%

23:55

12:16

07 Bad
08 OK
09 OK
10 Bad
11 Bad
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

Sun - Rise: 08:03, Set: 15:51, Transit: 11:57. Moon - Rise: 23:55, Set: 12:16. Civil Dark: 16:32 - 07:23. Nautical Dark: 17:16 - 06:40. Astro Dark: 17:57 - 05:58

Total Clouds (% Sky Obscured)

39
33
37
40
46
48
87
92
90
89
88
91
94
98
99
99
100
100
100
100
100
100
100
98

Low Clouds (% Sky Obscured)

38
33
37
40
46
48
71
77
72
65
61
66
66
74
92
96
100
98
96
94
89
83
77
61

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
26
66
65
71
79
90
90
91
94
92
92
83
71
46
48
93

High Clouds (% Sky Obscured)

20
1
0
1
0
0
18
20
20
30
40
50
50
45
36
69
87
91
94
98
99
99
100
78

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
0
0
0
0
5
6
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
3
6
6
12
25
35
34
31
22
15

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
94
96
93
91
90
88
90
93
95
96
94
94
94
96
98
98
98
98
98
98
96
96
98

Pressure (mb)

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

Ozone (du)

300
300
301
304
307
309
306
306
305
304
303
307
309
312
309
302
303
303
302
304
304
303
303
303

Friday 12

Waning Crescent 36%

01:09

12:26

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

Sun - Rise: 08:04, 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)

96
94
96
98
100
99
97
98
99
99
100
76
73
67
72
83
95
90
85
81
83
85
88
84

Low Clouds (% Sky Obscured)

47
32
23
14
9
1
2
4
10
20
24
12
25
37
55
72
90
82
76
72
74
73
73
69

Medium Clouds (% Sky Obscured)

92
91
93
94
94
84
73
49
78
67
85
40
71
67
72
78
80
74
70
63
55
54
64
77

High Clouds (% Sky Obscured)

57
27
48
74
100
97
88
92
95
97
100
36
31
27
18
20
21
26
28
29
44
48
45
34

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 (%)

13
9
4
1
0
0
0
3
10
2
16
26
25
20
19
13
5
8
8
4
10
7
3
4

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
12
11
11
10
10
10
9
8
5
5
9
10
11
12
14
15
16
15
15
13
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

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

Ozone (du)

304
305
305
306
307
309
309
312
313
316
317
320
323
326
329
327
326
324
324
325
325
328
332
335

Saturday 13

Waning Crescent 36%

02:21

12:35

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

Sun - Rise: 08:05, Set: 15:51, Transit: 11:58. Moon - Rise: 02:21, Set: 12:35. Civil Dark: 16:32 - 07:24. Nautical Dark: 17:16 - 06:41. Astro Dark: 17:57 - 06:00

Total Clouds (% Sky Obscured)

80
75
70
63
66
76
82
92
91
90
86
77
66
61
72
83
95
97
99
100
100
100
100
90

Low Clouds (% Sky Obscured)

65
61
61
60
52
45
37
34
42
41
27
35
40
41
42
49
55
64
76
85
81
72
63
64

Medium Clouds (% Sky Obscured)

67
60
40
20
0
0
0
0
17
35
49
53
47
52
32
21
29
20
30
25
20
25
25
20

High Clouds (% Sky Obscured)

22
9
18
28
38
56
65
80
65
54
44
58
64
61
62
45
31
63
83
100
100
100
100
86

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

Precipitation Probability (%)

2
0
2
1
1
4
2
0
2
1
0
0
1
2
12
27
39
56
62
53
70
76
70
66

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.3
0
0.3
0.4
0.3
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
7
7
7
6
6
6
6
7
7
7
6
6
6
5
5
6
5
5
5
5
6
6
6

Relative Humidity (%)

91
91
91
88
82
80
82
84
85
88
90
93
93
93
91
93
93
93
93
91
93
93
93
93

Pressure (mb)

1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1017
1017
1016
1016
1016
1015
1014
1014
1013
1012
1011
1011
1011
1010

Ozone (du)

349
363
378
371
365
358
356
354
351
348
344
340
337
334
331
329
327
326
324
321
319
319
319
318

Sunday 14

Waning Crescent 27%

03:34

12:46

Sun - Rise: 08:06, Set: 15:51, Transit: 11:59. Moon - Rise: 03:34, Set: 12:46. Civil Dark: 16:32 - 07:25. Nautical Dark: 17:16 - 06:42. Astro Dark: 17:57 - 06:01

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 08/12/25 07:48:21. Forecast: 08/12/25 to 14/12/25. Timezone: UTC+0.00