Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 20

New Moon 0%

09:09

15:37

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

Sun - Rise: 08:08, Set: 15:53, Transit: 12:01. Moon - Rise: 09:09, Set: 15:37. Civil Dark: 16:34 - 07:27. Nautical Dark: 17:17 - 06:44. Astro Dark: 17:59 - 06:02

Total Clouds (% Sky Obscured)

8
13
23
37
62
69
55
47
54
49
47
44
36
40
52
90
53
91
96
98
98
98
100
100

Low Clouds (% Sky Obscured)

8
13
23
37
62
69
55
47
54
49
47
44
36
40
52
59
52
68
83
78
89
96
83
77

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
8
26
58
72
91
88
94

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
41
21
57
20
45
64
56
38
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
2
0
0
0
0
0
0
0
0
0
0
0
0
1
5
16
18
5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
94
94
94
94
94
94
94
93
88
87
84
82
84
88
91
91
93
93
93
93
94
94
94

Pressure (mb)

1016
1015
1015
1014
1014
1013
1013
1013
1013
1012
1011
1010
1009
1009
1008
1008
1008
1007
1007
1007
1007
1006
1006
1006

Ozone (du)

289
289
289
289
290
290
288
285
283
279
278
276
277
274
279
284
284
284
283
284
287
291
296
302

Sunday 21

Waxing Crescent 2%

09:50

16:44

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: 15:53, Transit: 12:01. Moon - Rise: 09:50, Set: 16:44. Civil Dark: 16:34 - 07:28. Nautical Dark: 17:18 - 06:44. Astro Dark: 17:59 - 06:03

Total Clouds (% Sky Obscured)

100
100
85
88
81
81
95
90
89
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

74
83
76
68
74
63
69
75
70
66
72
92
70
72
74
79
96
98
86
87
92
95
76
67

Medium Clouds (% Sky Obscured)

68
53
6
49
36
27
40
29
17
70
100
100
100
100
100
100
100
100
100
100
100
100
99
100

High Clouds (% Sky Obscured)

61
100
79
80
81
60
69
68
74
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
8
7
6
0
0
1
3
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

3
9
0
1
0
2
0
1
1
0
6
23
42
49
68
95
95
95
95
95
76
67
51
25

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.9
1.5
1.2
1.2
0.7
0.3
0.3
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

1006
1006
1006
1006
1007
1007
1007
1008
1008
1008
1008
1007
1007
1007
1006
1006
1006
1006
1006
1006
1006
1005
1005
1005

Ozone (du)

311
317
320
317
314
313
312
314
317
321
329
335
337
338
343
344
347
352
356
359
363
366
367
368

Monday 22

Waxing Crescent 6%

10:19

17:59

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: 17:59. Civil Dark: 16:35 - 07:28. Nautical Dark: 17:18 - 06:45. Astro Dark: 18:00 - 06:03

Total Clouds (% Sky Obscured)

100
95
94
87
100
82
100
100
100
100
97
100
78
88
78
73
79
71
88
90
100
100
100
100

Low Clouds (% Sky Obscured)

48
51
54
52
54
60
56
50
50
56
83
81
74
77
77
63
66
56
74
78
90
90
85
86

Medium Clouds (% Sky Obscured)

92
86
86
35
9
6
47
97
89
48
36
3
0
7
8
17
29
4
0
5
7
6
18
23

High Clouds (% Sky Obscured)

100
68
68
72
100
70
100
100
95
100
77
100
19
34
20
55
66
66
80
59
40
38
40
43

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
16
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 (%)

15
7
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
95
94
94
96
96
94
94
93
90
85
81
84
88
90
93
93
94
93
93
93
94
93
94

Pressure (mb)

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

Ozone (du)

369
372
375
376
375
373
372
370
372
374
377
378
380
382
380
379
378
375
370
370
370
367
364
360

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: 15:54, 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
94
100
97
100
100
100
100
99
99
100
98
98
100
94
91
97
100
98
97
95
93
91

Low Clouds (% Sky Obscured)

75
75
76
75
75
75
80
85
85
85
90
95
94
94
99
94
91
94
92
93
96
92
86
88

Medium Clouds (% Sky Obscured)

19
24
32
44
50
74
80
80
80
74
58
59
59
60
55
36
43
65
82
67
57
45
55
59

High Clouds (% Sky Obscured)

47
39
25
17
13
11
11
11
10
10
14
15
17
24
29
27
28
16
2
44
35
30
20
10

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
1
2
1
11
14
16
14
13
14
12
9
4
8
7

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
94
94
96
96
94
96
94
91
88
88
91
93
96
96
96
96
98
98
98
96
98
96

Pressure (mb)

1014
1014
1015
1015
1016
1016
1017
1018
1018
1018
1018
1019
1019
1019
1020
1020
1021
1021
1022
1022
1022
1023
1023
1023

Ozone (du)

351
346
345
346
344
344
343
340
339
338
339
336
333
331
334
338
340
339
338
338
339
338
339
337

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 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: 12:03. Moon - Rise: 10:56, Set: 20:37. Civil Dark: 16:36 - 07:29. Nautical Dark: 17:20 - 06:45. Astro Dark: 18:01 - 06:04

Total Clouds (% Sky Obscured)

89
91
91
91
84
77
69
72
71
73
77
79
75
71
80
89
80
70
64
71
78
83
88
93

Low Clouds (% Sky Obscured)

84
84
85
85
79
70
64
67
70
73
77
79
75
71
80
84
79
70
64
71
77
77
81
85

Medium Clouds (% Sky Obscured)

71
76
66
59
48
47
38
17
3
1
0
0
0
1
2
2
7
14
20
14
9
4
17
39

High Clouds (% Sky Obscured)

10
15
15
20
30
30
25
20
8
1
1
3
7
1
11
25
29
20
5
3
1
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 (%)

4
3
2
0
0
0
0
0
0
0
0
0
0
0
0
0
3
4
4
4
5
2
19
26

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
13
14
14
14
14
15
15
16
16
16
15
15
14
13
13
15
14
14
14
14
15
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
91
89
88
89
88
88
86
85
80
80
75
80
83
85
86
86
85
85
85
83
82
80
80

Pressure (mb)

1024
1024
1025
1025
1026
1027
1028
1029
1029
1030
1030
1030
1030
1030
1031
1031
1031
1030
1030
1030
1030
1030
1029
1029

Ozone (du)

336
336
337
337
336
336
337
335
334
335
334
335
337
338
336
335
336
336
337
338
339
341
343
342

Thursday 25

Waxing Crescent 28%

11:08

21:56

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: 15:56, Transit: 12:03. Moon - Rise: 11:08, Set: 21:56. Civil Dark: 16:37 - 07:29. Nautical Dark: 17:20 - 06:46. Astro Dark: 18:02 - 06:04

Total Clouds (% Sky Obscured)

98
96
95
93
94
91
82
78
79
75
75
75
85
90
95
100
100
100
95
95
95
95
91
86

Low Clouds (% Sky Obscured)

85
81
77
77
80
78
76
76
76
75
75
71
80
84
82
77
83
84
86
81
86
86
91
86

Medium Clouds (% Sky Obscured)

60
60
52
37
32
21
18
18
19
25
39
48
65
72
68
65
48
27
19
13
9
8
12
19

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 (%)

32
40
47
51
47
43
37
38
39
40
37
35
34
34
33
30
30
30
31
28
24
20
21
22

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
15
14
13
13
13
13
12
13
13
13
13
13
12
12
11
11
11
12
12
12
12
13
12

Chance of Frost

Temperature (°C)

2
2
2
2
1
1
1
1
2
2
3
3
3
3
3
2
2
2
2
3
3
3
3
3

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
79
79
76
76
74
74
71
68
65
63
63
64
64
70
77
86
83
82
80
79
79
79
79

Pressure (mb)

1029
1028
1028
1028
1027
1028
1028
1028
1028
1027
1027
1027
1026
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025
1025

Ozone (du)

341
341
341
342
343
343
344
344
344
344
343
342
340
338
337
336
335
336
337
337
341
345
349
350

Friday 26

Waxing Crescent 39%

11:20

23:15

Sun - Rise: 08:10, Set: 15:57, Transit: 12:03. 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)

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 Loughton, Milton Keynes, United Kingdom (52.03,-0.77)

Generated: 20/12/25 02:50:45. Forecast: 20/12/25 to 26/12/25. Timezone: UTC+0.00