Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 28

First Quarter 57%

12:46

00:18

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

Sun - Rise: 07:12, Set: 16:09, Transit: 11:40. Moon - Rise: 12:46, Set: 00:18. Civil Dark: 16:43 - 06:39. Nautical Dark: 17:20 - 06:01. Astro Dark: 17:56 - 05:25

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
95
93
94
92
93
93
91
92
93
92
93
91
87
87
98
96
97
83

Low Clouds (% Sky Obscured)

64
68
65
69
82
97
78
74
71
74
73
62
61
70
65
76
77
75
67
73
77
71
70
70

Medium Clouds (% Sky Obscured)

100
100
100
100
100
89
87
81
87
84
79
79
76
56
83
68
70
44
50
74
93
92
92
50

High Clouds (% Sky Obscured)

3
30
45
55
56
79
27
4
0
0
0
0
0
0
0
0
2
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

6
7
5
5
5
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
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

3
2
2
42
31
19
9
7
4
4
3
3
2
1
1
2
2
3
2
3
3
4
1
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
78
77
77
80
80
77
78
80
78
76
75
76
76
75
71
69
68
69
69
69
68
65
66

Pressure (mb)

1002
1002
1001
1001
1002
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1015
1016
1017
1019
1020
1021
1023

Ozone (du)

385
380
373
364
359
358
355
352
350
348
346
346
345
346
344
333
334
336
342
345
346
350
354
354

Saturday 29

Waxing Gibbous 68%

13:04

01:34

10 Bad
11 Bad
12 Bad
13 Bad
14 OK
15 OK
16 OK
17 Good
18 Good
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

Sun - Rise: 07:14, Set: 16:09, Transit: 11:41. Moon - Rise: 13:04, Set: 01:34. Civil Dark: 16:43 - 06:40. Nautical Dark: 17:20 - 06:02. Astro Dark: 17:56 - 05:26

Total Clouds (% Sky Obscured)

75
67
52
49
25
23
19
13
11
66
100
97
87
69
69
98
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

73
65
47
44
25
23
19
13
8
0
1
1
1
2
21
42
43
45
56
93
93
89
86
89

Medium Clouds (% Sky Obscured)

27
1
0
0
0
0
0
0
0
17
69
95
82
54
46
94
100
100
100
100
100
97
97
95

High Clouds (% Sky Obscured)

0
0
0
0
0
0
1
0
6
66
100
74
72
66
66
71
96
100
100
100
98
100
100
100

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
0
0
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
None
None
None
None
None
None
None
None
None
None
Snow
Snow
Snow
Snow

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
12
33
78
82
65
57

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.5
0.2
0.1

Wind Speed/Direction (mph)

12
13
12
12
12
11
10
8
8
7
6
5
4
2
1
2
3
4
4
6
6
8
9
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
59
58
54
58
62
68
74
75
75
75
76
76
76
76
78
81
82
79
78
78
91
94
81

Pressure (mb)

1024
1025
1025
1026
1026
1027
1028
1029
1030
1030
1031
1030
1030
1031
1030
1030
1030
1029
1029
1028
1027
1026
1024
1023

Ozone (du)

353
347
346
344
342
343
340
339
338
338
339
335
332
332
333
335
334
334
334
333
337
347
349
351

Sunday 30

Waxing Gibbous 79%

13:22

02:53

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 OK
08 OK
09 OK

Sun - Rise: 07:15, Set: 16:08, Transit: 11:41. Moon - Rise: 13:22, Set: 02:53. Civil Dark: 16:42 - 06:41. Nautical Dark: 17:20 - 06:03. Astro Dark: 17:56 - 05:27

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
100
97
98
96
92
95
97
97
100
100
57
51
67
63
51
25
22
18

Low Clouds (% Sky Obscured)

95
94
97
94
97
97
99
89
90
89
78
87
86
92
82
79
37
51
66
63
50
25
22
18

Medium Clouds (% Sky Obscured)

96
92
100
99
100
97
100
94
94
89
79
75
95
95
100
100
32
50
0
0
0
0
0
0

High Clouds (% Sky Obscured)

10
0
0
0
0
0
0
0
0
0
0
7
11
0
20
20
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
2
0
0
0
0
0
8
0
2
9
0
0
8
0
2
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

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

Precipitation Probability (%)

67
87
95
95
95
95
77
82
66
51
57
63
39
46
25
8
9
2
1
1
1
0
0
0

Precipitation Amount (mm)

0.2
0.5
1
1.5
1.4
0.6
0.2
0.3
0.2
0.1
0.2
0.3
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

11
11
12
11
11
11
11
11
12
14
15
16
17
16
17
15
15
16
15
14
13
13
12
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-8
-7
-7
-6
-6
-6
-6
-5
-5
-5
-5
-5
-5
-6
-7
-6
-6
-7
-10
-11
-11
-12
-12
-12

Dew Point (°C)

-6
-5
-3
-2
-1
-0
-0
-1
0
1
-0
1
2
1
1
0
-3
-5
-7
-8
-9
-10
-11
-12

Relative Humidity (%)

75
77
91
96
98
100
98
91
98
96
88
96
98
96
96
94
76
74
73
72
72
70
68
68

Pressure (mb)

1021
1020
1018
1016
1014
1013
1011
1011
1010
1009
1009
1009
1008
1008
1009
1010
1012
1014
1016
1018
1021
1023
1025
1026

Ozone (du)

355
358
359
360
358
360
364
371
375
379
384
391
400
401
399
398
402
407
409
409
409
407
406
406

Monday 1

Waxing Gibbous 88%

13:43

04:17

10 OK
11 Good
12 Good
13 Good
14 OK
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

Sun - Rise: 07:16, Set: 16:08, Transit: 11:41. Moon - Rise: 13:43, Set: 04:17. Civil Dark: 16:42 - 06:42. Nautical Dark: 17:19 - 06:04. Astro Dark: 17:55 - 05:28

Total Clouds (% Sky Obscured)

14
8
3
11
39
58
72
85
100
100
100
100
100
100
100
100
100
100
98
97
95
96
98
100

Low Clouds (% Sky Obscured)

14
8
2
2
17
14
1
1
1
2
2
3
5
6
68
81
87
91
92
79
87
93
76
82

Medium Clouds (% Sky Obscured)

0
0
0
0
2
17
67
85
100
100
100
100
99
97
95
92
89
85
83
81
80
86
93
100

High Clouds (% Sky Obscured)

0
0
0
9
20
41
59
79
94
100
100
100
100
100
100
99
97
96
69
42
20
44
72
100

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
7
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
1
1
0
3
4
4
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)

11
10
9
9
8
8
7
7
6
5
6
6
6
5
4
4
4
4
3
2
2
3
3
3

Chance of Frost

Temperature (°C)

-7
-7
-7
-7
-7
-7
-7
-7
-8
-8
-8
-8
-8
-8
-8
-7
-7
-7
-7
-7
-7
-7
-7
-6

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

60
58
56
55
56
59
66
67
63
64
64
64
66
66
64
66
64
68
70
68
71
73
77
80

Pressure (mb)

1027
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1027
1027
1026
1025
1025
1024
1024
1023
1023
1022
1022
1022

Ozone (du)

400
397
396
394
391
389
384
383
385
384
381
379
376
378
374
373
371
370
369
368
371
370
369
369

Tuesday 2

Waxing Gibbous 95%

14:08

05:44

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

Sun - Rise: 07:17, Set: 16:08, Transit: 11:42. Moon - Rise: 14:08, Set: 05:44. Civil Dark: 16:42 - 06:43. Nautical Dark: 17:19 - 06:05. Astro Dark: 17:55 - 05:29

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
81
62
44
37
42
42
60
68
73

Low Clouds (% Sky Obscured)

83
84
84
80
79
78
81
82
64
89
96
90
89
83
86
77
62
44
32
35
36
55
59
72

Medium Clouds (% Sky Obscured)

96
96
94
96
98
100
100
100
100
100
100
100
100
100
100
76
62
44
37
42
42
50
55
61

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
12
11
10
9
4
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
8
6
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
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

3
15
6
10
11
6
16
24
30
53
68
75
83
86
90
20
19
21
20
23
25
24
25
28

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.1
0.3
0.3
0.4
0.4
0.5
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

3
3
3
4
4
6
7
8
9
10
11
13
14
14
15
15
12
11
11
10
9
9
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
76
76
76
76
79
82
84
85
84
82
82
82
81
79
76
76
77
77
77
79
79
74
71

Pressure (mb)

1022
1021
1020
1018
1018
1017
1016
1016
1015
1014
1013
1012
1011
1009
1008
1008
1011
1011
1011
1011
1011
1012
1012
1012

Ozone (du)

368
368
367
362
357
356
359
363
362
363
360
360
361
361
362
362
362
363
363
362
361
360
357
354

Wednesday 3

Waxing Gibbous 99%

14:41

07:12

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

Sun - Rise: 07:18, Set: 16:07, Transit: 11:42. Moon - Rise: 14:41, Set: 07:12. Civil Dark: 16:41 - 06:44. Nautical Dark: 17:19 - 06:06. Astro Dark: 17:55 - 05:30

Total Clouds (% Sky Obscured)

81
88
91
93
95
99
99
100
100
89
90
99
99
100
100
100
100
100
100
100
99
99
98
98

Low Clouds (% Sky Obscured)

81
88
89
89
90
90
93
97
100
70
40
20
45
66
85
86
91
92
92
93
95
93
89
86

Medium Clouds (% Sky Obscured)

71
76
82
82
88
94
91
86
85
83
85
83
89
91
92
74
55
37
25
12
2
6
8
13

High Clouds (% Sky Obscured)

28
51
74
61
58
54
79
79
61
50
29
17
11
5
0
1
1
1
1
1
1
9
21
41

ISS Passover

Visibility (miles)

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

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
Snow
Snow
Snow
None
None
None

Precipitation Probability (%)

28
30
32
31
33
33
27
21
13
6
3
3
13
22
29
29
29
32
35
36
38
36
32
27

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

8
8
8
8
6
6
5
4
4
5
6
7
8
8
9
9
9
10
10
10
11
12
11
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-10
-10
-10
-10
-9
-9
-8
-8
-7
-7
-7
-8
-8
-7
-6
-4
-4
-4
-4
-3
-3
-3
-4
-6

Relative Humidity (%)

69
66
64
63
65
69
73
76
81
84
81
81
79
82
87
92
92
92
92
92
92
89
84
76

Pressure (mb)

1012
1012
1012
1011
1012
1012
1012
1012
1012
1012
1012
1012
1012
1011
1011
1011
1011
1010
1010
1010
1010
1011
1011
1011

Ozone (du)

351
351
352
352
356
360
364
365
366
368
368
368
367
367
367
366
365
363
361
359
358
356
360
363

Thursday 4

Full Moon 100%

15:25

08:31

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
02 OK
03 OK
04 OK
05 OK
06 OK

Sun - Rise: 07:19, Set: 16:07, Transit: 11:43. Moon - Rise: 15:25, Set: 08:31. Civil Dark: 16:41 - 06:45. Nautical Dark: 17:19 - 06:07. Astro Dark: 17:55 - 05:31

Total Clouds (% Sky Obscured)

89
79
67
64
61
58
50
42
34
55
74
92
77
69
50
41
36
32
27
28
29

Low Clouds (% Sky Obscured)

83
79
67
64
61
51
50
42
34
37
40
43
49
56
50
41
36
32
27
28
29

Medium Clouds (% Sky Obscured)

13
9
2
3
3
9
16
22
29
49
69
90
72
54
37
26
16
10
14
13
16

High Clouds (% Sky Obscured)

34
33
24
30
35
41
50
42
34
45
46
41
31
16
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

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 (%)

27
26
23
23
23
24
27
28
25
25
23
18
20
20
18
18
15
12
12
11
9

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)

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

Chance of Frost

Temperature (°C)

-2
-4
-5
-6
-6
-7
-8
-8
-9
-10
-10
-10
-10
-10
-11
-11
-12
-12
-12
-13
-13

Feels Like (°C)

-8
-8
-8
-8
-11
-11
-12
-12
-13
-12
-15
-15
-15
-15
-15
-15
-16
-17
-16
-17
-17

Dew Point (°C)

-7
-9
-11
-13
-13
-13
-14
-14
-15
-15
-15
-16
-16
-16
-16
-17
-17
-17
-18
-18
-18

Relative Humidity (%)

71
66
62
57
58
61
62
61
62
64
62
61
60
61
62
62
63
62
62
62
62

Pressure (mb)

1011
1011
1011
1011
1012
1012
1012
1012
1012
1013
1012
1012
1012
1012
1012
1013
1013
1013
1014
1014
1014

Ozone (du)

367
368
369
370
374
378
382
391
399
408
409
410
411
411
412
412
407
403
398
394
391

Forecast for Sorel-Tracy, Montérégie, Canada (46.04,-73.11)

Generated: 28/11/25 10:39:33. Forecast: 28/11/25 to 04/12/25. Timezone: UTC-5.00