Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 16

Waning Crescent 7%

06:02

13:24

18 Bad
19 Bad
20 Bad
21 Bad
22 OK
23 OK
00 Bad
01 OK
02 Bad
03 OK
04 OK
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

Sun - Rise: 08:09, Set: 15:44, Transit: 11:56. Moon - Rise: 06:02, Set: 13:24. Civil Dark: 16:26 - 07:26. Nautical Dark: 17:11 - 06:42. Astro Dark: 17:53 - 05:59

Total Clouds (% Sky Obscured)

94
87
59
50
19
23
63
38
39
35
38
91
96
100
100
100
100
100
100
100
96
97
100
100

Low Clouds (% Sky Obscured)

35
32
16
25
19
23
25
29
34
34
38
37
47
49
35
23
46
44
48
66
76
83
98
83

Medium Clouds (% Sky Obscured)

94
30
59
4
0
0
0
0
0
0
0
28
24
49
35
98
100
98
99
98
73
75
100
54

High Clouds (% Sky Obscured)

2
0
0
0
0
3
21
9
18
7
31
52
38
100
100
100
100
100
100
67
60
60
65
50

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
49
100
100
100
100
29
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
Very Light Rain
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
25
41
55
43
25
39
23

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0
0

Wind Speed/Direction (mph)

6
5
6
6
6
5
5
5
5
5
6
6
7
9
11
12
14
15
15
16
16
17
18
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
91
91
89
86
86
88
88
89
89
89
89
88
89
86
83
78
78
78
79
81
81
82
84

Pressure (mb)

1013
1013
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1014
1013
1012
1011
1011
1010
1010

Ozone (du)

351
360
352
346
340
335
326
323
321
316
309
304
300
299
296
295
297
296
298
296
295
296
293
291

Wednesday 17

Waning Crescent 3%

07:15

13:52

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

Sun - Rise: 08:09, Set: 15:44, Transit: 11:57. Moon - Rise: 07:15, Set: 13:52. Civil Dark: 16:26 - 07:27. Nautical Dark: 17:11 - 06:42. Astro Dark: 17:53 - 06:00

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
100
84
84
100
100
100
89
51
55
49
50
60
71
76
81
100
100
92
90
100
79
49

Medium Clouds (% Sky Obscured)

99
53
100
98
95
100
96
100
100
62
100
70
99
100
100
100
100
100
100
100
100
97
99
93

High Clouds (% Sky Obscured)

60
6
65
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
83
100

ISS Passover

Visibility (miles)

9
9
8
9
9
7
9
6
9
9
9
9
9
9
9
9
9
9
9
3
4
9
9
3

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

Precipitation Probability (%)

21
24
52
67
56
51
78
38
30
18
2
2
1
2
9
36
52
89
95
95
95
83
95
95

Precipitation Amount (mm)

0
0
0
0.3
0
0
0.4
0
0
0
0
0
0
0
0
0
0
0.5
1.3
1.3
1
0.4
0.8
1.3

Wind Speed/Direction (mph)

19
20
21
21
21
21
22
21
20
17
14
11
9
11
10
11
14
16
17
18
20
23
25
25

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
85
87
90
87
88
88
91
88
90
93
95
96
96
95
95
93
93
91
91
90
88
84
86

Pressure (mb)

1009
1009
1008
1008
1007
1007
1006
1006
1006
1006
1006
1007
1007
1006
1007
1006
1006
1004
1002
1001
999
997
996
996

Ozone (du)

292
291
294
294
295
297
300
305
302
307
312
308
310
307
302
303
300
300
300
298
297
295
292
295

Thursday 18

Waning Crescent 1%

08:20

14:32

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

Sun - Rise: 08:10, Set: 15:44, Transit: 11:57. Moon - Rise: 08:20, Set: 14:32. Civil Dark: 16:26 - 07:28. Nautical Dark: 17:11 - 06:43. Astro Dark: 17:54 - 06:01

Total Clouds (% Sky Obscured)

98
97
91
100
60
61
6
0
63
2
25
28
19
13
21
23
29
27
29
36
42
41
35
30

Low Clouds (% Sky Obscured)

52
69
54
84
50
25
1
0
0
1
25
28
19
13
21
23
27
27
29
36
42
41
35
30

Medium Clouds (% Sky Obscured)

88
87
61
48
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

90
85
60
100
60
24
5
0
36
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

3
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

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 (%)

80
26
4
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.5
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)

25
24
23
23
24
19
16
15
15
15
15
15
15
15
14
14
14
14
15
15
14
13
12
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
79
79
73
74
75
75
74
75
76
79
80
80
81
82
82
82
81
79
79
79
81
85
87

Pressure (mb)

997
997
998
999
1002
1004
1006
1007
1008
1008
1009
1010
1011
1012
1012
1013
1014
1014
1014
1015
1015
1015
1016
1016

Ozone (du)

299
311
330
342
347
351
354
351
352
354
364
362
366
365
366
369
371
349
320
312
322
322
312
303

Friday 19

Waning Crescent 0%

09:14

15:26

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

Sun - Rise: 08:10, Set: 15:45, Transit: 11:58. Moon - Rise: 09:14, Set: 15:26. Civil Dark: 16:27 - 07:28. Nautical Dark: 17:12 - 06:43. Astro Dark: 17:54 - 06:01

Total Clouds (% Sky Obscured)

30
30
23
22
18
19
45
24
29
33
32
32
34
78
77
35
31
33
61
37
36
69
60
51

Low Clouds (% Sky Obscured)

30
30
23
22
18
19
25
24
29
33
32
32
34
59
66
35
31
33
59
37
36
49
38
25

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
45
50

High Clouds (% Sky Obscured)

1
1
0
0
0
1
10
1
1
1
1
0
0
0
0
0
0
0
0
0
2
31
30
30

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
91
91
91
91
91
91
89
91
93
93
91
91
93
93
91
88
85
82
82
82
84
87
88

Pressure (mb)

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

Ozone (du)

301
301
297
294
291
289
287
282
279
279
280
284
288
292
295
297
299
299
303
305
306
302
303
310

Saturday 20

New Moon 2%

09:54

16:34

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

Sun - Rise: 08:11, Set: 15:45, Transit: 11:58. Moon - Rise: 09:54, Set: 16:34. Civil Dark: 16:27 - 07:29. Nautical Dark: 17:12 - 06:44. Astro Dark: 17:54 - 06:02

Total Clouds (% Sky Obscured)

68
83
100
100
100
100
87
76
98
99
100
100
100
100
100
100
100
100
99
99
98
90
86
86

Low Clouds (% Sky Obscured)

33
42
46
53
67
80
85
76
92
85
78
71
85
89
92
85
78
71
77
83
90
85
81
77

Medium Clouds (% Sky Obscured)

63
74
80
89
94
100
61
50
84
95
97
100
100
100
100
100
99
99
99
99
98
82
66
65

High Clouds (% Sky Obscured)

60
82
100
100
100
90
54
54
69
78
76
87
91
96
100
96
92
88
84
78
63
52
39
30

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

Precipitation Probability (%)

0
0
0
7
12
17
32
43
54
54
54
56
38
42
45
54
66
78
78
78
79
69
59
47

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

13
13
13
13
14
14
14
14
13
14
14
13
12
10
10
10
10
10
10
10
10
10
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
86
86
85
82
82
82
83
83
85
86
88
88
90
90
90
91
91
91
91
91
93
91
93

Pressure (mb)

1005
1005
1005
1004
1004
1003
1003
1002
1002
1002
1002
1002
1002
1003
1003
1004
1004
1004
1003
1004
1004
1004
1005
1005

Ozone (du)

317
316
318
320
320
322
320
317
314
311
315
321
323
330
337
344
348
352
355
357
358
360
363
366

Sunday 21

Waxing Crescent 6%

10:22

17:51

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

Sun - Rise: 08:11, Set: 15:46, Transit: 11:59. Moon - Rise: 10:22, Set: 17:51. Civil Dark: 16:28 - 07:29. Nautical Dark: 17:13 - 06:44. Astro Dark: 17:55 - 06:02

Total Clouds (% Sky Obscured)

89
91
93
93
95
94
93
98
100
100
100
100
100
100
100
98
95
91
92
93
96
94
93
91

Low Clouds (% Sky Obscured)

72
67
62
57
53
48
46
43
35
54
75
96
97
97
100
91
80
65
62
63
68
71
73
76

Medium Clouds (% Sky Obscured)

55
35
14
33
53
67
72
79
86
87
86
86
91
96
100
95
89
79
66
58
50
34
17
0

High Clouds (% Sky Obscured)

34
47
59
57
56
52
68
84
100
100
100
100
100
100
100
79
61
42
47
61
75
80
86
91

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
5
7
8
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

38
24
0
0
0
0
4
5
2
24
32
36
83
95
95
95
92
63
54
39
0
1
1
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.9
1.4
1
0.6
0.3
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

1006
1006
1007
1007
1007
1007
1007
1007
1007
1007
1006
1006
1006
1006
1006
1006
1005
1005
1005
1005
1005
1005
1005
1006

Ozone (du)

370
373
376
379
379
378
378
378
378
377
379
380
381
382
383
384
387
389
391
394
396
399
400
400

Monday 22

Waxing Crescent 12%

10:41

No Set

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: 08:12, Set: 15:46, Transit: 11:59. Moon - Rise: 10:41, Set: No Set. Civil Dark: 16:28 - 07:30. Nautical Dark: 17:13 - 06:45. Astro Dark: 17:56 - 06:02

Total Clouds (% Sky Obscured)

86
81
77
80
84
89
92
94
97
97
97
96
96
95
94
95
97
99

Low Clouds (% Sky Obscured)

72
68
64
69
74
80
80
80
80
80
68
59
32
23
16
41
70
99

Medium Clouds (% Sky Obscured)

0
0
0
9
20
29
27
26
21
24
24
26
22
14
13
15
16
17

High Clouds (% Sky Obscured)

79
64
52
47
43
40
49
58
63
63
58
55
38
17
0
15
31
48

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

1
1
0
0
0
0
0
0
0
0
0
0
2
3
2
7
8
2

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
93
96
94
94
94
94
94
93
94
94
94
94
93
93
88
82

Pressure (mb)

1006
1006
1007
1007
1007
1007
1007
1008
1008
1008
1008
1008
1008
1009
1009
1010
1010
1010

Ozone (du)

401
399
396
393
392
390
389
388
387
387
387
388
389
390
391
392
393
394

Forecast for Boston, Lincolnshire, United Kingdom (52.98,-0.02)

Generated: 16/12/25 18:27:49. Forecast: 16/12/25 to 22/12/25. Timezone: UTC+0.00