Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 8

Waning Gibbous 75%

22:01

11:42

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

Sun - Rise: 07:40, Set: 16:33, Transit: 12:07. Moon - Rise: 22:01, Set: 11:42. Civil Dark: 17:07 - 07:07. Nautical Dark: 17:43 - 06:30. Astro Dark: 18:19 - 05:54

Total Clouds (% Sky Obscured)

16
25
17
3
5
7
5
4
3
3
2
1
0
0
0
0
0
1
1
0
7
33
59
100

Low Clouds (% Sky Obscured)

7
4
4
3
5
7
5
2
2
2
2
1
0
0
0
0
0
1
1
0
0
0
3
3

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
27
42
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
6
7
79

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
2

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

Chance of Frost

Temperature (°C)

-11
-11
-12
-11
-11
-11
-11
-11
-11
-11
-9
-8
-6
-5
-5
-5
-5
-6
-7
-8
-8
-8
-8
-8

Feels Like (°C)

-15
-15
-16
-15
-15
-15
-15
-14
-14
-14
-13
-12
-10
-9
-9
-9
-9
-9
-10
-11
-10
-11
-12
-12

Dew Point (°C)

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

Relative Humidity (%)

73
73
75
75
75
76
78
78
78
76
71
64
57
53
49
48
53
58
67
67
71
71
70
67

Pressure (mb)

1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1018
1018
1018
1018
1019
1019
1020
1020
1019
1019

Ozone (du)

354
357
360
362
363
362
364
366
370
370
376
382
389
406
415
424
425
424
425
418
407
408
415
418

Tuesday 9

Waning Gibbous 65%

No Rise

12:04

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
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 07:41, Set: 16:33, Transit: 12:07. Moon - Rise: No Rise, Set: 12:04. Civil Dark: 17:07 - 07:07. Nautical Dark: 17:44 - 06:31. Astro Dark: 18:19 - 05:55

Total Clouds (% Sky Obscured)

85
77
83
100
100
100
100
100
100
100
100
100
100
97
89
100
100
100
99
100
100
100
100
100

Low Clouds (% Sky Obscured)

2
4
16
90
94
87
78
78
60
77
92
94
93
92
80
27
46
23
42
50
53
63
80
75

Medium Clouds (% Sky Obscured)

79
73
75
97
100
100
100
89
100
100
98
98
99
83
77
100
100
100
67
63
99
91
100
100

High Clouds (% Sky Obscured)

65
71
70
19
80
48
65
100
100
93
49
55
31
65
63
78
97
100
96
98
96
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
0
1
0
3
9
9
9
9
9
9
9
9
9
9
9
9
9
6
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
Snow
None
None
None
None
None
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
Light Rain

Precipitation Probability (%)

0
0
1
15
26
33
28
25
9
6
24
46
49
33
17
2
5
2
0
0
0
0
2
69

Precipitation Amount (mm)

0
0
0
0
0
0.1
0
0
0
0
0
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0.4

Wind Speed/Direction (mph)

4
2
2
3
4
6
7
8
10
12
12
13
12
14
13
12
11
10
8
8
8
7
8
8

Chance of Frost

Temperature (°C)

-7
-7
-7
-6
-5
-3
-2
-1
0
1
2
3
4
5
5
6
5
5
4
4
4
4
5
5

Feels Like (°C)

-11
-10
-10
-10
-8
-7
-6
-5
-4
-4
-3
-2
-1
-1
-0
1
1
0
0
0
1
1
1
1

Dew Point (°C)

-12
-11
-10
-9
-6
-5
-4
-3
-3
-3
-3
-1
2
2
2
3
3
3
3
3
3
4
4
4

Relative Humidity (%)

68
73
79
79
90
87
91
87
77
71
70
76
86
82
80
82
86
89
93
89
93
96
94
93

Pressure (mb)

1019
1019
1018
1018
1017
1016
1015
1015
1014
1013
1012
1012
1011
1010
1009
1008
1008
1007
1007
1006
1005
1005
1003
1002

Ozone (du)

418
415
408
408
408
406
397
393
392
388
382
363
351
348
349
348
345
348
346
342
341
335
333
335

Wednesday 10

Waning Gibbous 55%

23:13

12:23

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
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 07:41, Set: 16:34, Transit: 12:08. Moon - Rise: 23:13, Set: 12:23. Civil Dark: 17:07 - 07:08. Nautical Dark: 17:44 - 06:31. Astro Dark: 18:19 - 05:56

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
99
97
93
97
93
76
88
87
65
95
39
77
49
46
56
53
50
63

Low Clouds (% Sky Obscured)

73
72
100
90
54
93
86
79
91
97
93
75
88
87
47
90
26
73
44
34
36
28
24
25

Medium Clouds (% Sky Obscured)

100
100
100
100
61
95
97
90
57
12
0
0
0
6
51
39
23
0
3
19
33
30
34
37

High Clouds (% Sky Obscured)

100
100
100
100
100
100
25
20
20
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

2
3
2
6
9
9
9
9
6
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
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
95
79
62
25
50
51
27
3
9
23
24
23
25
12
25
4
10
11
7
8
7

Precipitation Amount (mm)

1.2
1.8
1.7
0.8
0.3
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

6
6
6
7
7
8
8
7
7
7
7
6
7
7
7
7
6
5
4
3
2
1
0
-1

Feels Like (°C)

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

Dew Point (°C)

5
5
5
6
6
7
7
5
5
5
5
4
4
3
4
4
2
2
1
-1
-3
-4
-6
-6

Relative Humidity (%)

93
96
94
94
93
93
94
88
88
87
87
87
84
78
81
81
75
80
82
76
73
69
66
65

Pressure (mb)

1001
999
997
996
994
992
990
989
989
989
990
990
990
990
990
990
990
991
992
993
994
994
995
995

Ozone (du)

331
337
335
332
332
332
332
334
331
335
334
333
333
327
325
323
321
318
322
330
334
337
337
344

Thursday 11

Third Quarter 44%

00:20

12:39

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

Sun - Rise: 07:42, Set: 16:34, Transit: 12:08. Moon - Rise: 00:20, Set: 12:39. Civil Dark: 17:07 - 07:09. Nautical Dark: 17:44 - 06:32. Astro Dark: 18:19 - 05:57

Total Clouds (% Sky Obscured)

59
92
100
53
44
37
73
73
52
22
54
75
91
96
94
98
99
99
47
64
88
91
92
90

Low Clouds (% Sky Obscured)

23
81
86
35
34
37
63
53
32
19
46
58
82
90
93
97
98
98
47
64
88
91
92
90

Medium Clouds (% Sky Obscured)

47
54
65
40
23
0
20
43
52
22
42
26
18
9
0
5
9
14
9
4
0
0
0
0

High Clouds (% Sky Obscured)

1
2
4
2
1
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
7
8
9
9
9
9
9
5
3
2
5

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
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

10
13
9
11
10
8
32
44
55
55
51
51
41
34
26
20
22
23
25
25
27
22
20
12

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.1
0.2
0.2
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-6
-7
-6
-5
-8
-8
-8
-8
-8
-9
-9
-9
-9
-9
-9
-10
-10
-10
-10
-10
-9
-8
-8
-8

Relative Humidity (%)

65
63
68
74
60
58
63
63
63
59
57
59
57
57
57
57
58
61
62
62
72
77
77
73

Pressure (mb)

995
995
995
994
994
993
993
993
993
993
993
993
993
993
993
993
994
995
996
997
998
999
1000
1001

Ozone (du)

349
348
348
355
359
362
367
376
388
385
385
386
383
375
371
371
371
369
364
356
347
349
353
355

Friday 12

Waning Crescent 35%

01:26

12:56

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 OK
16 Good
17 OK
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 07:43, Set: 16:34, Transit: 12:08. Moon - Rise: 01:26, Set: 12:56. Civil Dark: 17:07 - 07:10. Nautical Dark: 17:44 - 06:33. Astro Dark: 18:20 - 05:57

Total Clouds (% Sky Obscured)

90
89
90
90
91
91
93
93
92
63
67
59
44
82
72
63
40
17
41
72
93
97
99
99

Low Clouds (% Sky Obscured)

90
89
90
90
91
90
89
88
88
63
67
58
30
29
31
8
11
14
37
49
43
45
46
48

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
11
65
53
57
36
11
20
33
41
56
55
62

High Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

9
9
9
9
7
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 (%)

17
11
10
8
5
1
1
1
0
0
0
0
0
0
0
0
0
0
4
6
7
15
17
15

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
13
13
12
12
12
12
11
12
11
11
11
11
11
7
5
3
3
3
4
4
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-10
-10
-10
-10
-10
-10
-9
-10
-9
-9
-8
-7
-7
-5
-6
-6
-5
-5
-4
-4
-5
-5
-5
-5

Dew Point (°C)

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

Relative Humidity (%)

73
73
73
73
75
76
73
70
72
72
71
67
64
61
59
56
62
68
75
79
84
91
87
87

Pressure (mb)

1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1012
1013
1012
1012
1012
1007
1007
1007
1007
1006
1006
1006
1006

Ozone (du)

357
362
366
363
360
358
351
352
363
367
372
375
372
372
376
372
369
366
363
360
358
356
352
347

Saturday 13

Waning Crescent 26%

02:30

13:14

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
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 07:44, Set: 16:34, Transit: 12:09. Moon - Rise: 02:30, Set: 13:14. Civil Dark: 17:07 - 07:10. Nautical Dark: 17:44 - 06:33. Astro Dark: 18:20 - 05:58

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
94
88
83
88
90
92
92
90
90

Low Clouds (% Sky Obscured)

57
66
74
80
86
88
87
78
84
89
93
98
97
98
98
90
82
74
78
81
87
86
80
75

Medium Clouds (% Sky Obscured)

91
91
91
94
97
100
71
43
25
30
30
50
49
48
47
38
39
35
36
47
47
47
47
45

High Clouds (% Sky Obscured)

3
5
13
23
39
39
40
25
25
10
5
5
19
44
54
65
47
31
10
2
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 (%)

16
13
6
9
8
1
1
1
1
7
8
7
18
18
15
28
28
25
28
23
22
25
22
17

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
86
89
91
91
91
91
89
86
84
78
75
71
68
66
65
68
74
78
79
82
86
86
86

Pressure (mb)

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

Ozone (du)

343
339
336
333
330
328
326
325
323
322
321
319
318
319
320
320
320
320
320
323
326
328
334
339

Sunday 14

Waning Crescent 18%

03:35

13:34

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
19 Bad

Sun - Rise: 07:45, Set: 16:34, Transit: 12:09. Moon - Rise: 03:35, Set: 13:34. Civil Dark: 17:08 - 07:11. Nautical Dark: 17:45 - 06:34. Astro Dark: 18:20 - 05:59

Total Clouds (% Sky Obscured)

86
82
77
74
68
60
65
74
81
80
84
84
82
83
81
89
93
97
98
98
98

Low Clouds (% Sky Obscured)

72
70
68
70
68
60
65
70
70
69
69
70
73
73
74
80
84
87
89
89
89

Medium Clouds (% Sky Obscured)

36
28
19
16
15
16
29
47
64
64
64
61
41
20
1
1
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

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Probability (%)

19
17
11
14
13
6
12
11
7
13
15
14
17
13
11
11
11
12
15
17
18

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-7
-8
-7
-8
-9
-9
-10
-10
-10
-10
-11
-11
-11
-11
-10
-10
-11
-11
-10
-11
-11

Dew Point (°C)

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

Relative Humidity (%)

87
84
79
76
79
80
82
80
77
76
73
72
67
65
62
60
62
66
69
70
70

Pressure (mb)

1005
1005
1005
1006
1006
1006
1006
1007
1008
1008
1009
1010
1010
1010
1010
1010
1011
1012
1013
1014
1014

Ozone (du)

345
348
351
354
357
360
363
361
360
359
358
357
356
360
365
369
373
377
380
365
350

Forecast for Halifax, Halifax Regional Municipality, Canada (44.65,-63.57)

Generated: 08/12/25 23:19:28. Forecast: 08/12/25 to 14/12/25. Timezone: UTC-4.00