Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 23

Waxing Crescent 19%

10:56

19:18

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 OK
09 OK
10 OK
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 08:10, Set: 15:55, Transit: 12:02. Moon - Rise: 10:56, Set: 19:18. Civil Dark: 16:36 - 07:29. Nautical Dark: 17:20 - 06:45. Astro Dark: 18:01 - 06:04

Total Clouds (% Sky Obscured)

100
100
100
99
100
99
86
91
85
64
65
46
64
35
33
43
44
78
67
75
61
72
57
45

Low Clouds (% Sky Obscured)

100
99
100
99
100
99
86
91
85
64
65
46
64
35
33
43
44
78
67
75
61
72
57
45

Medium Clouds (% Sky Obscured)

1
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)

2
1
2
13
31
3
9
41
41
25
7
5
19
5
1
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
12
10
8
6
2
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)

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

Chance of Frost

Temperature (°C)

5
5
5
5
5
5
5
4
4
4
4
3
3
3
3
3
4
4
5
5
5
4
4
4

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
79
82
80
79
78
79
88
88
88
85
85
83
82
80
77
76
75
73
73
76
80
80
82

Pressure (mb)

1024
1025
1026
1026
1027
1028
1028
1029
1030
1030
1031
1032
1032
1034
1034
1035
1035
1035
1035
1035
1035
1035
1035
1035

Ozone (du)

353
351
350
349
348
342
337
335
334
331
330
329
329
329
330
332
337
336
341
342
341
339
339
338

Wednesday 24

Waxing Crescent 28%

11:08

20:37

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

Sun - Rise: 08:10, Set: 15:56, Transit: 12:03. Moon - Rise: 11:08, 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)

58
66
66
67
65
79
78
74
46
35
25
0
0
0
0
0
0
3
0
0
0
0
0
7

Low Clouds (% Sky Obscured)

58
66
66
67
65
79
78
74
46
35
25
0
0
0
0
0
0
3
0
0
0
0
0
7

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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
82
82
80
80
83
83
82
80
79
77
73
70
66
64
62
59
60
59
60
60
63
65
66

Pressure (mb)

1035
1035
1035
1035
1034
1034
1033
1033
1033
1032
1032
1032
1032
1032
1032
1032
1031
1031
1030
1030
1030
1030
1030
1030

Ozone (du)

340
340
340
342
341
340
341
344
345
345
346
347
347
346
346
347
348
346
344
344
340
336
334
334

Thursday 25

Waxing Crescent 39%

11:20

21:55

19 OK
20 OK
21 OK
22 OK
23 OK
00 OK
01 OK
02 OK
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

Sun - Rise: 08:10, Set: 15:56, Transit: 12:03. Moon - Rise: 11:20, Set: 21:55. Civil Dark: 16:37 - 07:30. Nautical Dark: 17:21 - 06:46. Astro Dark: 18:02 - 06:05

Total Clouds (% Sky Obscured)

28
29
30
39
41
37
34
39
50
54
69
67
66
64
68
65
70
71
63
66
66
53
47
61

Low Clouds (% Sky Obscured)

28
29
30
39
41
37
34
39
50
54
69
67
66
64
68
65
70
70
63
66
66
51
42
49

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
2

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
2
2
2
2
2
2
3
1
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
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
13
12
12
12
12
12
12
12
11
11
11
11
11
11
11
11
12
12
12
11
11
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
71
74
75
77
78
81
81
83
83
84
84
88
89
89
86
83
83
85
86
91
93
94
94

Pressure (mb)

1030
1031
1031
1031
1031
1031
1030
1030
1030
1030
1030
1030
1031
1031
1031
1031
1031
1031
1031
1031
1031
1031
1031
1032

Ozone (du)

333
330
328
328
329
330
332
332
330
329
328
325
322
319
317
314
311
310
309
308
307
307
306
307

Friday 26

Waxing Crescent 50%

11:30

23:15

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

Sun - Rise: 08:11, Set: 15:57, Transit: 12:04. Moon - Rise: 11:30, Set: 23:15. Civil Dark: 16:38 - 07:30. Nautical Dark: 17:22 - 06:46. Astro Dark: 18:03 - 06:05

Total Clouds (% Sky Obscured)

62
78
81
79
76
72
73
78
69
35
26
31
36
52
57
56
73
77
82
88
92
71
81
83

Low Clouds (% Sky Obscured)

57
76
80
74
68
58
48
40
38
35
26
31
32
41
54
56
73
77
82
88
92
71
81
83

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

ISS Passover

Visibility (miles)

9
9
4
0
4
7
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
98
100
96
94
91
89
89
91
96
94
94
94
91
85
83
91
87
85
84
82
79
88
93

Pressure (mb)

1032
1033
1033
1033
1034
1034
1034
1034
1034
1035
1035
1035
1035
1036
1037
1037
1037
1037
1036
1036
1037
1037
1037
1037

Ozone (du)

307
307
306
305
305
304
303
303
304
303
302
302
300
300
298
298
296
297
296
296
297
299
300
302

Saturday 27

First Quarter 61%

11:42

00:36

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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 08:11, Set: 15:58, Transit: 12:04. Moon - Rise: 11:42, Set: 00:36. Civil Dark: 16:39 - 07:30. Nautical Dark: 17:22 - 06:46. Astro Dark: 18:04 - 06:05

Total Clouds (% Sky Obscured)

83
83
79
81
85
79
68
60
70
79
87
90
88
83
77
78
81
82
83
84
80
76
72
48

Low Clouds (% Sky Obscured)

83
83
79
81
83
78
68
60
70
78
83
81
77
74
76
78
81
78
76
72
69
65
63
44

Medium Clouds (% Sky Obscured)

0
0
1
2
2
2
1
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
0
0
1
1
2
2
2
1
1
2
10
19
30
19
9
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
1
1
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
2
1

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
4
4
4
4
4
4
4
3
3
3
3
3
3
3
3
3
4
4
4
5
4
4
3

Relative Humidity (%)

94
93
93
91
93
93
94
94
94
94
94
93
91
91
91
89
88
86
86
88
91
93
94
94

Pressure (mb)

1037
1038
1038
1037
1037
1037
1037
1037
1037
1037
1037
1037
1036
1036
1036
1036
1036
1036
1035
1035
1035
1035
1035
1035

Ozone (du)

302
302
301
301
298
295
296
297
299
300
300
300
299
299
298
298
298
298
297
297
296
295
294
293

Sunday 28

Waxing Gibbous 58%

11:56

02:01

19 OK
20 Good
21 Good
22 OK
23 OK
00 OK
01 OK
02 OK
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

Sun - Rise: 08:11, Set: 15:59, Transit: 12:05. Moon - Rise: 11:56, Set: 02:01. Civil Dark: 16:40 - 07:30. Nautical Dark: 17:23 - 06:47. Astro Dark: 18:04 - 06:05

Total Clouds (% Sky Obscured)

23
0
8
15
22
26
29
36
47
59
72
75
79
78
78
79
79
71
64
60
71
76
84
82

Low Clouds (% Sky Obscured)

22
0
8
15
22
26
27
32
43
52
57
64
67
70
66
70
70
71
64
60
71
76
84
82

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
1
1
1
1
1
1
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 (%)

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
96
96
96
94
94
94
94
93
93
89
88
89
89
89
86
83
79
82
85
89
85
82
79

Pressure (mb)

1035
1035
1035
1035
1035
1035
1035
1035
1034
1034
1034
1034
1034
1034
1034
1034
1034
1033
1033
1033
1033
1033
1033
1033

Ozone (du)

293
293
292
293
295
296
297
297
298
298
297
297
296
295
294
293
292
292
291
290
288
288
287
286

Monday 29

Waxing Gibbous 72%

12:15

03:31

19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 OK
05 OK
06 OK
07 OK
08 OK
09 OK
10 OK
11 OK

Sun - Rise: 08:11, Set: 16:00, Transit: 12:05. Moon - Rise: 12:15, Set: 03:31. Civil Dark: 16:41 - 07:30. Nautical Dark: 17:24 - 06:47. Astro Dark: 18:05 - 06:05

Total Clouds (% Sky Obscured)

79
76
73
66
58
51
49
58
45
32
19
18
23
30
36
46
47

Low Clouds (% Sky Obscured)

79
76
68
63
57
51
49
58
45
30
16
17
15
13
16
27
32

Medium Clouds (% Sky Obscured)

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
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

Fog (%)

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

Precipitation Probability (%)

1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
86
93
91
89
89
89
88
88
91
93
96
94
94
91
84
78

Pressure (mb)

1033
1033
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1033

Ozone (du)

286
285
285
283
282
280
281
282
282
290
297
304
311
317
323
325
326

Forecast for Milton Keynes, Milton Keynes, United Kingdom (52.04,-0.76)

Generated: 23/12/25 19:34:33. Forecast: 23/12/25 to 29/12/25. Timezone: UTC+0.00