Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 8

Waning Gibbous 75%

20:13

11:19

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

Sun - Rise: 07:18, Set: 15:58, Transit: 11:38. Moon - Rise: 20:13, Set: 11:19. Civil Dark: 16:33 - 06:44. Nautical Dark: 17:11 - 06:05. Astro Dark: 17:47 - 05:29

Total Clouds (% Sky Obscured)

17
28
34
49
33
8
8
22
39
39
39
41
41
38
34
38
37
41
32
27
12
36
75
74

Low Clouds (% Sky Obscured)

17
28
34
49
25
7
8
10
13
22
13
18
18
13
11
11
12
20
13
10
2
18
21
17

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
2
3
3
2
2
2
55
55

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
2
1
1
3
3
9
58
34

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
7
4
4
4
4
4
4
5
6
5
6
8
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
0
0
0
0
1
1
1
0
0
0
0
1
1
0
0
0
3
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
12
12
10
9
9
9
9
9
9
9
9
8
8
8
8
7
7
6
6
6
7
9
10

Chance of Frost

Temperature (°C)

-15
-14
-14
-13
-14
-15
-15
-16
-16
-16
-16
-16
-16
-16
-17
-17
-17
-17
-17
-17
-17
-15
-13
-11

Feels Like (°C)

-21
-20
-19
-19
-20
-21
-20
-20
-21
-22
-22
-21
-22
-22
-22
-22
-22
-22
-22
-21
-21
-19
-18
-17

Dew Point (°C)

-20
-19
-18
-17
-17
-18
-18
-18
-18
-18
-18
-18
-18
-18
-19
-19
-19
-19
-19
-19
-19
-18
-17
-16

Relative Humidity (%)

65
68
70
73
77
79
79
82
83
83
82
84
83
83
83
81
81
81
80
80
81
77
71
66

Pressure (mb)

1024
1024
1023
1023
1024
1024
1024
1025
1024
1024
1024
1024
1024
1024
1024
1023
1023
1022
1022
1022
1022
1021
1021
1020

Ozone (du)

459
458
450
443
439
443
445
444
446
446
444
443
440
437
437
434
430
429
429
427
428
427
427
428

Tuesday 9

Waning Gibbous 65%

21:30

11:39

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:19, Set: 15:58, Transit: 11:39. Moon - Rise: 21:30, Set: 11:39. Civil Dark: 16:33 - 06:44. Nautical Dark: 17:11 - 06:06. Astro Dark: 17:47 - 05:30

Total Clouds (% Sky Obscured)

87
97
100
100
100
100
100
100
96
100
100
100
99
97
92
96
97
96
92
100
100
100
100
100

Low Clouds (% Sky Obscured)

14
5
5
5
5
5
5
4
5
40
85
82
84
79
82
85
90
88
87
89
84
94
100
97

Medium Clouds (% Sky Obscured)

58
96
100
100
100
90
94
95
96
100
100
100
96
89
81
84
91
73
74
76
88
100
100
100

High Clouds (% Sky Obscured)

54
25
100
100
100
100
95
100
91
83
92
87
75
47
2
68
0
11
47
37
99
100
100
100

ISS Passover

Visibility (miles)

9
3
4
9
9
9
9
9
9
9
9
9
9
9
1
3
6
3
0
0
0
0
1
0

Fog (%)

0
0
0
0
0
0
0
0
1
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
Snow
None
None
None
None
Snow
Snow
Snow
None
None
None
None
None

Precipitation Probability (%)

4
21
11
6
4
1
0
2
0
0
12
35
37
39
29
38
48
50
42
31
34
32
24
29

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

10
9
8
6
3
2
3
3
3
2
2
2
2
2
2
3
3
3
3
3
3
3
3
4

Chance of Frost

Temperature (°C)

-10
-10
-9
-9
-10
-10
-11
-11
-12
-12
-11
-10
-10
-9
-9
-9
-9
-9
-8
-8
-8
-6
-5
-4

Feels Like (°C)

-15
-15
-14
-13
-13
-14
-14
-15
-16
-15
-15
-13
-13
-12
-13
-12
-13
-12
-12
-12
-11
-10
-8
-7

Dew Point (°C)

-15
-13
-12
-12
-13
-12
-13
-13
-14
-14
-14
-13
-13
-12
-11
-10
-10
-10
-10
-9
-9
-8
-7
-5

Relative Humidity (%)

66
75
78
78
80
85
85
85
85
83
80
78
80
80
85
88
88
88
90
90
90
90
87
89

Pressure (mb)

1018
1017
1016
1016
1015
1014
1013
1012
1012
1011
1010
1009
1008
1008
1007
1006
1006
1005
1005
1005
1005
1005
1004
1003

Ozone (du)

425
418
417
420
421
423
422
421
421
421
423
418
412
408
406
401
396
388
380
363
347
339
334
330

Wednesday 10

Waning Gibbous 55%

22:43

11:56

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:20, Set: 15:58, Transit: 11:39. Moon - Rise: 22:43, Set: 11:56. Civil Dark: 16:33 - 06:45. Nautical Dark: 17:11 - 06:07. Astro Dark: 17:48 - 05:30

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
99
96
96
98
95
97
78
65
72
68
74
68

Low Clouds (% Sky Obscured)

84
94
100
98
100
90
91
91
88
92
95
88
86
87
88
88
86
86
77
65
68
60
67
66

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
94
81
85
88
80
89
60
65
72
68
74
68

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
85
88
86
78
70
85
80
76
48
2
8
14
23
37
51

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
5
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
Snow
None
None
None
None
None
None
None
None

Precipitation Probability (%)

31
46
71
86
88
95
95
94
95
84
92
81
58
38
35
37
33
30
27
18
21
19
16
13

Precipitation Amount (mm)

0
0.1
0.4
0.5
0.5
0.8
0.7
0.7
0.7
0.6
0.7
0.5
0.2
0
0
0.1
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-5
-5
-5
-4
-5
-5
-5
-4
-4
-4
-4
-5
-5
-5
-5
-6
-6
-6
-6
-8
-8
-9
-9
-9

Relative Humidity (%)

89
87
89
96
94
94
94
96
96
96
96
96
94
94
96
96
96
96
94
90
90
87
84
79

Pressure (mb)

1002
1001
1000
999
998
997
996
996
995
994
993
993
992
992
993
993
993
993
994
994
995
996
997
997

Ozone (du)

330
333
332
332
332
330
332
336
336
337
339
337
334
333
341
346
350
353
354
356
358
362
366
369

Thursday 11

Third Quarter 44%

23:53

11:56

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:21, Set: 15:58, Transit: 11:39. Moon - Rise: 23:53, Set: 11:56. Civil Dark: 16:33 - 06:46. Nautical Dark: 17:11 - 06:08. Astro Dark: 17:48 - 05:31

Total Clouds (% Sky Obscured)

79
100
100
100
100
100
100
100
99
99
82
85
89
50
99
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

70
92
91
90
88
85
82
79
76
76
68
57
71
48
86
89
92
96
100
97
95
94
94
96

Medium Clouds (% Sky Obscured)

75
81
98
93
76
72
60
53
52
52
53
74
70
50
76
100
100
100
100
98
95
100
100
100

High Clouds (% Sky Obscured)

62
46
67
5
2
1
0
0
0
0
11
22
34
22
11
0
2
3
4
5
6
7
16
15

ISS Passover

Visibility (miles)

9
9
9
9
4
3
4
5
1
2
5
7
9
9
9
3
0
0
1
1
1
0
0
0

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
Snow

Precipitation Probability (%)

10
9
10
16
10
9
15
8
16
7
8
6
2
5
6
11
30
33
32
33
27
35
34
37

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
0.1

Wind Speed/Direction (mph)

9
9
9
8
7
7
8
8
8
8
8
8
8
9
9
10
12
12
13
14
14
15
16
16

Chance of Frost

Temperature (°C)

-6
-6
-7
-7
-8
-8
-8
-9
-10
-10
-11
-11
-12
-11
-12
-12
-12
-12
-12
-12
-12
-12
-11
-10

Feels Like (°C)

-11
-12
-12
-13
-13
-14
-14
-14
-16
-16
-16
-16
-17
-17
-17
-18
-19
-19
-19
-19
-20
-19
-19
-18

Dew Point (°C)

-10
-10
-10
-10
-10
-10
-10
-11
-11
-12
-12
-13
-14
-14
-14
-14
-14
-14
-14
-14
-14
-14
-13
-12

Relative Humidity (%)

77
77
79
80
83
85
85
87
88
86
88
86
85
81
83
83
83
83
83
83
83
83
83
85

Pressure (mb)

997
997
998
998
998
999
999
1000
999
999
999
999
999
999
999
999
999
999
999
999
1000
1000
1000
1000

Ozone (du)

369
366
367
369
368
368
368
373
377
380
384
390
390
389
400
395
394
392
392
394
391
387
386
378

Friday 12

Waning Crescent 34%

01:00

12:11

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:22, Set: 15:58, Transit: 11:40. Moon - Rise: 01:00, Set: 12:11. Civil Dark: 16:33 - 06:47. Nautical Dark: 17:11 - 06:09. Astro Dark: 17:48 - 05:32

Total Clouds (% Sky Obscured)

100
100
100
100
100
95
63
57
48
50
58
61
63
37
41
53
66
80
93
95
96
97
92
87

Low Clouds (% Sky Obscured)

96
96
98
100
99
92
57
57
46
50
58
59
53
23
33
44
49
53
57
63
68
73
78
83

Medium Clouds (% Sky Obscured)

96
97
87
86
72
44
36
28
22
22
17
17
22
0
1
1
24
40
68
57
53
30
20
20

High Clouds (% Sky Obscured)

17
11
6
2
3
1
0
0
0
0
0
0
0
0
1
3
7
29
55
63
72
70
12
7

ISS Passover

Visibility (miles)

0
0
1
7
9
9
9
9
9
9
9
9
9
7
6
5
4
5
5
6
4
3
1
1

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

Precipitation Probability (%)

32
33
36
35
36
39
43
42
43
42
40
40
40
2
2
1
2
2
2
4
9
13
19
22

Precipitation Amount (mm)

0
0
0.1
0
0
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

16
15
15
14
14
14
13
13
13
12
12
11
11
10
9
8
8
7
7
7
6
6
6
6

Chance of Frost

Temperature (°C)

-10
-9
-8
-7
-7
-8
-8
-8
-9
-9
-9
-10
-10
-11
-12
-12
-13
-12
-12
-12
-11
-10
-9
-8

Feels Like (°C)

-18
-16
-16
-15
-15
-15
-15
-14
-14
-14
-13
-14
-14
-14
-15
-15
-15
-15
-15
-16
-16
-15
-15
-14

Dew Point (°C)

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

Relative Humidity (%)

83
83
80
76
74
74
75
77
78
80
83
85
86
88
90
90
90
88
90
90
88
87
87
87

Pressure (mb)

1000
1000
1000
1001
1002
1002
1003
1004
1005
1005
1005
1006
1006
1007
1008
1009
1009
1009
1009
1009
1009
1009
1010
1009

Ozone (du)

379
381
377
377
378
379
376
372
373
371
361
358
358
356
355
355
355
356
357
358
360
363
365
365

Saturday 13

Waning Crescent 25%

02:06

12:26

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:23, Set: 15:58, Transit: 11:40. Moon - Rise: 02:06, Set: 12:26. Civil Dark: 16:33 - 06:48. Nautical Dark: 17:11 - 06:09. Astro Dark: 17:48 - 05:32

Total Clouds (% Sky Obscured)

83
82
80
72
79
87
94
96
98
100
100
100
100
98
96
95
96
98
98
96
93
93
97
97

Low Clouds (% Sky Obscured)

83
81
76
72
70
74
76
70
69
68
59
58
45
47
45
43
40
37
41
40
42
45
55
64

Medium Clouds (% Sky Obscured)

25
35
48
52
54
56
59
72
85
98
98
99
100
92
84
76
69
62
55
56
54
49
48
59

High Clouds (% Sky Obscured)

5
10
13
13
11
8
6
4
7
9
8
8
7
6
4
2
3
6
8
10
13
11
12
16

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
6
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
Snow
None
Snow
Snow
Snow
Snow
Snow
Snow
None
Snow
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

22
30
35
39
39
38
40
46
48
48
46
43
38
37
30
19
15
11
7
7
6
2
4
4

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-7
-6
-6
-7
-7
-7
-7
-8
-8
-9
-9
-10
-10
-11
-11
-11
-12
-12
-11
-11
-10
-10
-10
-9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
87
89
92
94
94
94
92
94
94
92
92
90
90
88
85
79
81
81
81
81
81
81
80

Pressure (mb)

1008
1007
1007
1007
1007
1007
1007
1008
1008
1008
1008
1008
1009
1009
1010
1011
1012
1013
1013
1014
1015
1016
1017
1017

Ozone (du)

366
367
369
371
373
378
382
387
386
386
385
386
388
389
386
383
379
378
377
375
374
372
370
370

Sunday 14

Waning Crescent 18%

03:13

12:42

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

Sun - Rise: 07:23, Set: 15:58, Transit: 11:41. Moon - Rise: 03:13, Set: 12:42. Civil Dark: 16:33 - 06:48. Nautical Dark: 17:12 - 06:10. Astro Dark: 17:48 - 05:33

Total Clouds (% Sky Obscured)

100
100
99
98
93
88
75
61
53
44
42
39
35
34
33
33
37
43
47

Low Clouds (% Sky Obscured)

66
78
85
95
78
61
44
39
37
35
34
34
33
33
33
33
37
43
47

Medium Clouds (% Sky Obscured)

60
59
58
57
49
41
36
27
18
8
5
3
0
0
0
0
1
2
3

High Clouds (% Sky Obscured)

43
41
32
22
17
12
8
5
2
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

8
7
8
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

Precipitation Type

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

Precipitation Probability (%)

3
9
12
12
13
12
7
9
8
3
6
6
3
5
4
1
4
5
2

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

-8
-8
-8
-9
-9
-10
-11
-11
-12
-13
-14
-14
-14
-14
-14
-15
-15
-15
-16

Feels Like (°C)

-15
-15
-14
-14
-14
-14
-14
-14
-17
-17
-17
-17
-17
-18
-18
-19
-19
-19
-19

Dew Point (°C)

-11
-11
-11
-11
-11
-12
-13
-13
-14
-15
-16
-16
-16
-16
-17
-17
-17
-17
-18

Relative Humidity (%)

80
80
80
82
82
83
83
85
85
84
84
84
83
83
82
82
82
82
82

Pressure (mb)

1017
1017
1017
1018
1019
1020
1021
1021
1022
1022
1023
1023
1023
1024
1024
1025
1025
1026
1026

Ozone (du)

370
370
369
367
365
365
365
365
362
359
355
351
347
342
341
339
337
339
340

Forecast for Saint-Agapit, Chaudière-Appalaches, Canada (46.56,-71.44)

Generated: 08/12/25 12:06:18. Forecast: 08/12/25 to 14/12/25. Timezone: UTC-5.00