Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 12

Waning Crescent 35%

02:33

11:10

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 08:07, Set: 16:09, Transit: 12:08. Moon - Rise: 02:33, Set: 11:10. Civil Dark: 16:50 - 07:27. Nautical Dark: 17:33 - 06:43. Astro Dark: 18:15 - 06:01

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
99
99
97
78
54
65
55
56
63
74
83
65
68

Low Clouds (% Sky Obscured)

68
68
59
67
61
60
56
52
54
56
56
54
53
63
52
49
63
53
48
46
45
52
54
54

Medium Clouds (% Sky Obscured)

12
12
43
97
88
78
82
100
100
100
99
96
99
91
67
18
0
0
3
3
44
32
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
95
74
82
65
54
60
55
56
63
74
81
4
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
1
0
0
2
0
0
0
0
2
2
9
16
6
15
2
0
0
0
2
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)

20
17
16
16
17
17
16
16
15
16
16
16
16
15
15
14
13
14
14
14
13
11
11
11

Chance of Frost

Temperature (°C)

9
10
10
9
9
9
9
9
9
9
10
10
10
10
10
10
9
9
9
9
9
8
8
8

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
87
84
81
84
84
78
80
81
82
80
81
84
84
84
87
88
88
90
87
85
90
91
87

Pressure (mb)

999
999
999
999
999
999
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1001
1001
1002
1002
1003
1003

Ozone (du)

309
306
304
304
305
308
307
307
304
306
312
315
316
319
321
321
324
328
329
329
329
330
331
333

Tuesday 13

Waning Crescent 26%

03:48

11:27

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 08:06, Set: 16:11, Transit: 12:08. Moon - Rise: 03:48, Set: 11:27. Civil Dark: 16:51 - 07:26. Nautical Dark: 17:35 - 06:42. Astro Dark: 18:16 - 06:01

Total Clouds (% Sky Obscured)

91
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
89

Low Clouds (% Sky Obscured)

57
53
57
60
72
76
92
86
86
74
65
85
97
83
100
98
95
90
81
86
80
83
78
80

Medium Clouds (% Sky Obscured)

0
0
0
0
96
100
100
100
100
100
100
100
96
100
100
100
100
100
100
100
96
100
69
51

High Clouds (% Sky Obscured)

74
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
70
100
100
67
43

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
6
9
9
7
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
Light Rain
None
Light Rain
Very Light Rain
None
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
7
34
68
47
75
74
66
72
71
61
48
46
55
57
55
41
32

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.4
0
0.4
0.3
0
0.3
0.2
0.2
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
93
94
94
93
93
94
93
95
95
93
88
91
91
88
88
85
87
87
88
88
90
88
91

Pressure (mb)

1003
1004
1004
1004
1004
1003
1003
1003
1003
1003
1003
1002
1001
1001
1001
1001
1002
1002
1002
1002
1003
1003
1003
1003

Ozone (du)

329
329
329
326
324
326
327
325
327
329
332
332
334
334
336
336
329
330
333
345
354
361
367
378

Wednesday 14

Waning Crescent 18%

05:02

11:51

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 08:05, Set: 16:12, Transit: 12:09. Moon - Rise: 05:02, Set: 11:51. Civil Dark: 16:52 - 07:25. Nautical Dark: 17:36 - 06:42. Astro Dark: 18:17 - 06:00

Total Clouds (% Sky Obscured)

85
80
77
69
62
66
66
75
85
85
87
94
96
100
100
100
100
100
100
100
100
100
100
90

Low Clouds (% Sky Obscured)

85
80
75
67
62
66
66
72
70
63
67
69
75
63
45
55
78
72
62
54
65
84
100
90

Medium Clouds (% Sky Obscured)

65
41
39
38
30
30
23
16
15
8
4
80
57
69
99
100
100
100
100
100
100
100
100
87

High Clouds (% Sky Obscured)

45
3
0
0
0
0
0
21
38
60
65
71
79
98
100
100
100
100
100
100
68
76
61
46

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 (%)

27
25
16
21
30
28
10
2
0
0
1
0
0
0
0
5
0
1
2
0
6
16
29
36

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)

8
7
10
9
8
8
7
8
7
7
7
8
7
7
6
6
7
8
9
10
11
11
12
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
89
89
89
91
91
93
93
89
86
82
78
79
80
83
86
88
86
85
85
86
88
85
85

Pressure (mb)

1003
1004
1005
1005
1006
1007
1007
1008
1009
1009
1010
1010
1010
1009
1009
1009
1009
1009
1009
1009
1008
1008
1007
1007

Ozone (du)

371
366
356
340
331
323
320
319
317
316
317
317
315
318
320
319
317
318
320
322
323
326
330
331

Thursday 15

Waning Crescent 11%

06:11

12:27

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 08:04, Set: 16:14, Transit: 12:09. Moon - Rise: 06:11, Set: 12:27. Civil Dark: 16:54 - 07:24. Nautical Dark: 17:37 - 06:41. Astro Dark: 18:19 - 06:00

Total Clouds (% Sky Obscured)

80
76
82
84
85
90
95
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
96

Low Clouds (% Sky Obscured)

79
70
70
72
72
66
62
55
62
69
76
72
70
71
73
75
76
78
79
81
82
82
83
82

Medium Clouds (% Sky Obscured)

73
52
59
63
66
78
81
88
92
96
100
100
100
100
100
100
100
100
100
100
100
95
50
34

High Clouds (% Sky Obscured)

29
15
10
5
0
35
70
100
100
100
100
100
100
100
100
100
100
100
100
100
78
53
27
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
2
6
3
2
4
5
9
7
9
9
9
9
9
8

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

Precipitation Probability (%)

41
36
23
12
27
40
10
27
20
42
61
78
95
95
78
79
85
86
75
58
48
33
24
22

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.8
0.7
0.4
0.4
0.5
0.5
0.3
0
0
0
0
0

Wind Speed/Direction (mph)

14
15
15
14
14
13
12
12
12
11
11
10
10
10
11
10
11
12
12
12
13
12
12
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
86
86
86
88
90
93
93
93
91
94
93
94
94
93
94
91
90
90
91
88
90
88
88

Pressure (mb)

1006
1006
1005
1005
1004
1004
1004
1004
1004
1004
1003
1003
1001
1000
1000
999
998
997
996
995
995
995
995
996

Ozone (du)

330
337
341
347
352
356
356
356
358
361
361
360
360
358
361
361
369
370
369
370
371
370
371
373

Friday 16

Waning Crescent 6%

07:09

13:16

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 08:03, Set: 16:16, Transit: 12:09. Moon - Rise: 07:09, Set: 13:16. Civil Dark: 16:55 - 07:24. Nautical Dark: 17:39 - 06:40. Astro Dark: 18:20 - 05:59

Total Clouds (% Sky Obscured)

92
88
66
61
60
66
73
69
99
100
100
96
94
92
96
95
93
93
93
92
95
97
99
99

Low Clouds (% Sky Obscured)

81
82
65
59
52
66
73
69
92
92
92
95
94
92
93
86
79
80
81
82
87
92
96
96

Medium Clouds (% Sky Obscured)

75
62
13
24
35
38
48
46
95
97
66
45
24
3
25
47
68
58
43
32
50
67
85
86

High Clouds (% Sky Obscured)

0
0
20
37
55
50
44
30
21
35
1
0
0
0
0
0
0
0
1
2
5
11
25
25

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 (%)

8
2
1
0
0
0
0
1
16
35
24
23
15
6
7
8
10
11
11
2
7
8
5
16

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
3
3
3
3
2
2
2
3
3
4
4
4
4
4
4
3
3
3
4
4
4
3
4

Relative Humidity (%)

86
82
86
86
89
91
93
93
93
91
93
93
90
88
85
85
86
88
88
91
93
93
93
94

Pressure (mb)

997
997
998
999
1000
1000
1001
1002
1002
1003
1003
1003
1003
1004
1004
1005
1005
1006
1006
1007
1007
1008
1008
1008

Ozone (du)

373
379
387
393
397
398
404
413
417
416
414
413
410
407
404
406
408
410
414
417
421
421
422
423

Saturday 17

Waning Crescent 2%

07:54

14:21

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 08:02, Set: 16:17, Transit: 12:10. Moon - Rise: 07:54, Set: 14:21. Civil Dark: 16:57 - 07:23. Nautical Dark: 17:40 - 06:39. Astro Dark: 18:21 - 05:58

Total Clouds (% Sky Obscured)

99
98
98
98
97
97
97
97
96
95
94
91
90
88
94
94
93
95
96
97
96
95
94
86

Low Clouds (% Sky Obscured)

95
95
91
89
87
88
90
93
90
88
85
81
77
73
78
83
90
92
94
96
95
94
93
86

Medium Clouds (% Sky Obscured)

89
91
88
88
90
74
55
36
40
45
49
48
46
45
32
16
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

25
15
15
15
15
12
8
5
4
3
1
1
0
0
0
0
0
0
0
0
0
0
0
1

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

Precipitation Probability (%)

21
24
32
36
37
27
18
12
13
15
16
14
12
12
12
11
8
7
7
1
8
10
8
4

Precipitation Amount (mm)

0
0
0
0
0.2
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
6
6
6
6
6
6
6
6
7
7
7
7
7
6
6
5
6
6
6
6
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
94
94
94
94
94
94
94
93
91
90
88
87
85
84
84
83
82
83
83
83
85
86
86

Pressure (mb)

1009
1009
1009
1010
1010
1010
1011
1012
1012
1013
1013
1013
1013
1014
1014
1014
1015
1015
1015
1016
1016
1016
1016
1016

Ozone (du)

428
433
438
437
437
436
435
435
434
432
430
429
431
433
435
431
426
421
419
417
414
408
401
394

Sunday 18

New Moon 0%

08:25

15:36

Sun - Rise: 08:01, Set: 16:19, Transit: 12:10. Moon - Rise: 08:25, Set: 15:36. Civil Dark: 16:59 - 07:22. Nautical Dark: 17:42 - 06:39. Astro Dark: 18:23 - 05:58

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

Generated: 12/01/26 01:23:50. Forecast: 12/01/26 to 18/01/26. Timezone: UTC+0.00