Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 22

Waxing Crescent 6%

10:19

18:00

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
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 08:09, Set: 15:54, Transit: 12:02. Moon - Rise: 10:19, Set: 18:00. Civil Dark: 16:35 - 07:29. Nautical Dark: 17:19 - 06:45. Astro Dark: 18:00 - 06:03

Total Clouds (% Sky Obscured)

93
95
96
100
100
100
100
100
98
100
100
100
100
93
100
100
99
94
93
93
95
97
97
97

Low Clouds (% Sky Obscured)

47
49
64
60
52
61
68
87
51
59
65
68
71
73
85
79
90
84
80
84
86
82
91
90

Medium Clouds (% Sky Obscured)

93
95
73
29
9
43
10
40
42
75
44
56
39
48
55
89
28
70
60
63
79
91
86
80

High Clouds (% Sky Obscured)

93
95
96
100
100
98
97
100
82
100
98
100
100
57
100
95
69
28
60
61
71
67
52
68

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
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 (%)

27
2
3
1
1
3
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.2
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
11
9
10
10
9
8
6
5
6
5
6
5
4
5
5
4
6
5
6
6
6
6
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

1005
1005
1005
1005
1006
1006
1007
1008
1008
1008
1009
1009
1009
1009
1010
1010
1011
1011
1012
1012
1012
1013
1013
1013

Ozone (du)

366
368
369
370
371
373
373
374
375
377
380
383
384
384
380
377
376
373
371
365
361
359
359
358

Tuesday 23

Waxing Crescent 12%

10:40

19:18

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
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 08:10, Set: 15:55, Transit: 12:02. Moon - Rise: 10:40, Set: 19:18. Civil Dark: 16:35 - 07:29. Nautical Dark: 17:19 - 06:45. Astro Dark: 18:00 - 06:04

Total Clouds (% Sky Obscured)

100
100
100
100
99
100
100
100
100
100
100
100
100
100
100
100
99
99
99
99
99
99
99
98

Low Clouds (% Sky Obscured)

97
100
100
100
92
100
100
100
100
100
100
100
100
100
100
98
98
99
99
99
99
99
99
98

Medium Clouds (% Sky Obscured)

83
82
63
48
37
53
53
54
42
46
48
79
50
54
61
92
69
61
45
37
5
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
85
100
92
90
77
70
80
76
57
14
2
1
1
1
1
2
2
2
0
5

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
2
4
70
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
3
0
0
0
1
7
10
12
12
10
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)

7
7
8
8
9
8
9
9
9
11
12
12
12
13
12
12
13
13
13
13
13
13
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
91
93
94
94
96
98
96
94
93
90
86
85
83
85
90
94
93
93
93
93
94
93
93

Pressure (mb)

1014
1014
1014
1014
1015
1015
1016
1017
1017
1018
1018
1018
1018
1019
1020
1021
1022
1023
1023
1024
1025
1026
1026
1027

Ozone (du)

354
351
350
351
350
348
343
341
342
345
347
349
351
350
351
350
351
352
351
346
341
337
334
333

Wednesday 24

Waxing Crescent 19%

10:56

20:37

02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
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

Sun - Rise: 08:10, Set: 15:55, Transit: 12:03. Moon - Rise: 10:56, Set: 20:37. Civil Dark: 16:36 - 07:29. Nautical Dark: 17:20 - 06:46. Astro Dark: 18:01 - 06:04

Total Clouds (% Sky Obscured)

93
84
82
73
82
76
78
58
56
54
42
35
61
59
67
64
66
57
55
53
54
60
58
50

Low Clouds (% Sky Obscured)

93
84
81
72
82
76
78
56
56
54
42
35
61
59
67
64
66
57
55
53
54
56
52
47

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)

1
3
2
2
4
11
2
12
4
5
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
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
1
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)

14
13
13
13
14
14
14
14
14
15
15
15
15
15
14
12
12
13
13
13
14
14
14
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
91
89
89
88
86
88
86
85
82
78
79
80
82
82
85
85
86
86
86
86
85
86

Pressure (mb)

1028
1028
1029
1029
1030
1031
1032
1033
1034
1034
1034
1034
1034
1034
1034
1035
1035
1035
1035
1035
1034
1034
1034
1033

Ozone (du)

329
326
324
328
331
330
327
323
322
322
323
326
326
327
327
327
328
329
329
330
331
331
331
334

Thursday 25

Waxing Crescent 28%

11:09

21:56

02 Bad
03 OK
04 OK
05 OK
06 OK
07 Good
08 Good
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

Sun - Rise: 08:10, Set: 15:56, Transit: 12:03. Moon - Rise: 11:09, Set: 21:56. Civil Dark: 16:37 - 07:30. Nautical Dark: 17:20 - 06:46. Astro Dark: 18:02 - 06:05

Total Clouds (% Sky Obscured)

45
38
28
20
14
9
5
7
6
10
9
6
3
2
1
0
0
1
2
1
1
1
1
1

Low Clouds (% Sky Obscured)

45
38
28
20
14
9
4
7
6
10
9
6
3
2
1
0
0
1
1
1
1
1
1
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
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
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)

15
16
16
17
17
17
17
17
17
18
18
18
17
16
15
14
13
12
12
11
10
10
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
85
85
85
83
83
81
77
73
67
62
60
60
61
63
65
69
71
73
74
78
80
81
83

Pressure (mb)

1033
1033
1032
1032
1031
1031
1031
1031
1031
1031
1030
1030
1030
1030
1030
1030
1030
1031
1031
1031
1031
1031
1031
1031

Ozone (du)

336
335
335
338
340
343
345
346
348
350
352
350
350
350
351
351
353
354
354
351
348
346
344
344

Friday 26

Waxing Crescent 39%

11:20

23:15

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

Sun - Rise: 08:11, Set: 15:57, Transit: 12:04. Moon - Rise: 11:20, Set: 23:15. Civil Dark: 16:37 - 07:30. Nautical Dark: 17:21 - 06:46. Astro Dark: 18:02 - 06:05

Total Clouds (% Sky Obscured)

1
1
1
0
0
1
2
2
2
2
11
21
34
57
69
80
75
70
65
67
66
66
70
74

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
11
21
34
57
69
80
72
64
57
61
65
66
70
74

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
2
6
10
13
26
40
52
35
17
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
1
9
20
30
28
17
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
86
86
88
89
89
92
91
85
82
79
80
82
83
86
89
91
89
89
89
88
86
86
88

Pressure (mb)

1031
1031
1032
1032
1032
1032
1033
1034
1034
1034
1034
1034
1034
1034
1034
1035
1035
1036
1036
1037
1037
1037
1038
1038

Ozone (du)

344
344
343
343
343
343
346
347
347
347
349
349
348
347
349
350
351
350
349
348
347
345
344
344

Saturday 27

First Quarter 50%

11:31

00:36

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
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 08:11, Set: 15:58, Transit: 12:04. Moon - Rise: 11:31, Set: 00:36. Civil Dark: 16:38 - 07:30. Nautical Dark: 17:22 - 06:46. Astro Dark: 18:03 - 06:05

Total Clouds (% Sky Obscured)

74
74
58
59
66
75
80
76
72
70
66
59
52
66
80
94
89
87
85
85
85
83
82
82

Low Clouds (% Sky Obscured)

74
74
58
59
64
57
52
60
68
70
66
59
52
66
80
94
89
87
83
80
78
78
82
82

Medium Clouds (% Sky Obscured)

0
8
16
17
13
12
14
9
6
7
5
4
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
2
2
5
7
14
15
17
21
26
34
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
89
91
91
93
93
93
93
90
86
84
85
87
87
87
87
87
88
91
93
93
93
94
94

Pressure (mb)

1038
1038
1038
1039
1039
1039
1040
1040
1041
1041
1041
1041
1041
1041
1041
1041
1041
1041
1042
1042
1042
1042
1042
1042

Ozone (du)

343
343
339
335
332
330
329
327
325
322
320
317
314
311
309
308
307
307
307
306
306
306
305
304

Sunday 28

Waxing Gibbous 61%

11:42

02:01

Sun - Rise: 08:11, Set: 15:58, Transit: 12:05. Moon - Rise: 11:42, Set: 02:01. Civil Dark: 16:39 - 07:30. Nautical Dark: 17:23 - 06:47. Astro Dark: 18:04 - 06:05

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 Crownhill, Milton Keynes, United Kingdom (52.03,-0.81)

Generated: 22/12/25 01:54:23. Forecast: 22/12/25 to 28/12/25. Timezone: UTC+0.00