Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 26

Waxing Crescent 41%

11:08

23:20

09 OK
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

Sun - Rise: 07:30, Set: 16:16, Transit: 11:53. Moon - Rise: 11:08, Set: 23:20. Civil Dark: 16:50 - 06:56. Nautical Dark: 17:27 - 06:19. Astro Dark: 18:03 - 05:43

Total Clouds (% Sky Obscured)

1
29
37
100
100
100
100
100
99
100
100
100
100
100
100
100
100
100
100
100
98
96
100
97

Low Clouds (% Sky Obscured)

0
0
9
0
0
1
1
1
0
0
1
1
7
10
10
10
5
5
15
15
15
25
42
39

Medium Clouds (% Sky Obscured)

1
29
37
100
99
100
100
97
98
92
100
99
100
100
100
100
100
100
100
100
98
96
100
84

High Clouds (% Sky Obscured)

1
20
37
100
100
100
100
100
93
100
100
100
100
96
94
100
100
100
100
98
72
5
4
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
4
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
1
6
22
3
4
2
4
14
3
1
1

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)

4
3
0
2
3
4
5
6
6
5
6
7
6
6
6
4
3
3
4
4
4
4
4
5

Chance of Frost

Temperature (°C)

-22
-20
-18
-16
-15
-15
-15
-14
-15
-15
-14
-14
-13
-13
-13
-12
-12
-12
-12
-12
-12
-12
-12
-12

Feels Like (°C)

-23
-23
-20
-20
-19
-19
-20
-19
-20
-20
-19
-18
-18
-17
-17
-17
-16
-16
-16
-16
-15
-15
-15
-16

Dew Point (°C)

-25
-23
-22
-20
-20
-19
-19
-18
-17
-17
-17
-16
-16
-16
-15
-15
-14
-14
-14
-14
-14
-13
-13
-13

Relative Humidity (%)

70
71
68
67
67
69
71
75
78
81
79
81
79
79
79
79
83
85
86
85
85
86
88
88

Pressure (mb)

1029
1029
1028
1026
1025
1024
1023
1022
1021
1021
1020
1020
1021
1021
1020
1020
1020
1021
1021
1020
1021
1022
1022
1023

Ozone (du)

324
323
325
325
324
326
325
328
327
329
327
328
329
332
333
336
335
338
343
344
346
352
350
353

Saturday 27

First Quarter 52%

11:26

00:34

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

Sun - Rise: 07:30, Set: 16:17, Transit: 11:53. Moon - Rise: 11:26, Set: 00:34. Civil Dark: 16:50 - 06:57. Nautical Dark: 17:28 - 06:19. Astro Dark: 18:04 - 05:44

Total Clouds (% Sky Obscured)

85
85
70
42
24
29
14
23
14
3
7
47
3
5
6
24
26
5
4
7
3
3
3
3

Low Clouds (% Sky Obscured)

24
25
15
5
2
1
1
0
0
1
0
0
0
1
1
4
2
1
1
1
1
1
1
1

Medium Clouds (% Sky Obscured)

49
39
37
34
20
26
9
21
13
0
4
42
0
0
0
0
0
0
0
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
4
0
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
16
34
43
45
45
27
16
11
6

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)

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

Chance of Frost

Temperature (°C)

-11
-11
-10
-9
-9
-9
-10
-11
-13
-14
-14
-15
-15
-16
-16
-17
-16
-16
-17
-17
-17
-16
-16
-16

Feels Like (°C)

-15
-15
-14
-13
-12
-12
-13
-13
-15
-15
-16
-16
-19
-18
-18
-18
-19
-19
-19
-19
-19
-18
-18
-18

Dew Point (°C)

-13
-13
-13
-13
-12
-12
-12
-13
-14
-15
-16
-17
-17
-18
-18
-18
-18
-18
-19
-19
-19
-18
-18
-18

Relative Humidity (%)

86
83
80
77
77
77
81
85
86
88
86
86
86
86
86
86
85
84
86
86
85
84
82
84

Pressure (mb)

1024
1025
1025
1024
1024
1024
1025
1025
1025
1026
1027
1027
1027
1027
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026

Ozone (du)

353
362
360
357
357
357
356
357
358
358
358
360
358
360
363
360
359
359
359
353
352
348
346
348

Sunday 28

Waxing Gibbous 63%

11:46

01:51

09 Good
10 Good
11 Good
12 Good
13 OK
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

Sun - Rise: 07:31, Set: 16:17, Transit: 11:54. Moon - Rise: 11:46, Set: 01:51. Civil Dark: 16:51 - 06:57. Nautical Dark: 17:29 - 06:20. Astro Dark: 18:04 - 05:44

Total Clouds (% Sky Obscured)

4
5
3
11
42
61
59
75
91
83
86
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

1
1
1
1
0
0
1
0
1
1
1
1
0
0
1
11
18
30
43
52
71
82
84
89

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
5
60
36
8
62
100
92
80
87
100
88
97
95
91
93
91
93
97

High Clouds (% Sky Obscured)

4
5
1
9
42
61
55
66
78
75
85
100
100
100
100
100
99
97
97
98
99
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
8
2
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Frozen rai
Frozen rai
Frozen rai

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
3
6
34
50
71
80
91

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.5
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-14
-12
-10
-8
-7
-7
-7
-8
-9
-10
-10
-10
-10
-9
-9
-8
-7
-7
-6
-5
-4
-3
-3
-2

Feels Like (°C)

-16
-14
-12
-10
-9
-9
-10
-11
-12
-14
-14
-13
-14
-12
-12
-12
-11
-11
-10
-9
-8
-6
-5
-5

Dew Point (°C)

-17
-15
-13
-12
-11
-10
-9
-10
-10
-11
-12
-12
-12
-11
-10
-10
-9
-9
-8
-7
-6
-5
-4
-2

Relative Humidity (%)

82
79
77
75
74
76
85
85
87
87
85
86
86
87
87
88
85
85
84
84
85
87
92
96

Pressure (mb)

1025
1024
1023
1022
1020
1020
1019
1018
1018
1017
1016
1014
1013
1011
1010
1008
1006
1005
1003
1001
999
997
995
994

Ozone (du)

346
347
347
345
343
340
339
339
339
338
339
338
339
337
336
336
335
334
334
334
334
335
336
335

Monday 29

Waxing Gibbous 74%

12:09

03:13

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

Sun - Rise: 07:31, Set: 16:18, Transit: 11:54. Moon - Rise: 12:09, Set: 03:13. Civil Dark: 16:52 - 06:57. Nautical Dark: 17:29 - 06:20. Astro Dark: 18:05 - 05:44

Total Clouds (% Sky Obscured)

100
98
96
94
96
98
100
99
97
97
97
97
92
46
98
97
99
99
99
99
99
100
100
100

Low Clouds (% Sky Obscured)

95
86
79
71
83
92
100
97
97
95
97
97
81
14
98
95
91
83
95
95
95
97
98
99

Medium Clouds (% Sky Obscured)

100
96
91
87
88
89
92
88
89
89
86
78
58
25
37
51
95
92
88
90
94
97
92
87

High Clouds (% Sky Obscured)

100
68
37
5
5
5
5
0
0
0
2
4
6
4
2
0
4
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

1
1
0
1
3
2
1
3
3
1
0
0
9
9
9
9
9
9
9
3
0
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

Frozen rai
Frozen rai
Frozen rai
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Snow
None
None
None
None
None
None
None
None
Snow
Snow
Snow
Snow

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
95
59
18
13
12
12
15
14
17
38
63
58
53
58

Precipitation Amount (mm)

0.7
0.6
2.3
1.7
1.3
1.1
1.3
0.7
1.1
1
0.7
0.2
0
0
0
0
0
0
0
0
0.4
0.2
0.1
0.2

Wind Speed/Direction (mph)

5
5
4
4
5
6
8
10
12
14
17
18
19
19
19
19
19
19
19
20
20
20
23
23

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-4
-4
-2
-2
-2
-2
-3
-3
-4
-4
-5
-6
-8
-9
-9
-10
-11
-11
-11
-13
-13
-13
-16
-18

Dew Point (°C)

-2
-1
-0
1
1
1
1
2
1
1
-0
-2
-4
-6
-8
-8
-8
-9
-9
-8
-8
-7
-9
-10

Relative Humidity (%)

96
96
94
98
100
98
98
98
98
100
100
92
81
78
73
73
75
73
77
84
87
92
87
87

Pressure (mb)

992
991
988
986
983
982
982
982
982
983
983
984
984
984
983
983
983
983
983
984
984
984
985
985

Ozone (du)

337
337
337
335
335
340
346
351
352
355
362
373
387
398
404
409
414
414
410
408
399
392
398
410

Tuesday 30

Waxing Gibbous 84%

12:37

04:37

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

Sun - Rise: 07:31, Set: 16:19, Transit: 11:55. Moon - Rise: 12:37, Set: 04:37. Civil Dark: 16:53 - 06:57. Nautical Dark: 17:30 - 06:20. Astro Dark: 18:06 - 05:44

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
99
96
91
73
57
51
63
78
89
91
92

Low Clouds (% Sky Obscured)

100
98
97
95
97
99
100
100
99
99
97
96
94
93
88
84
73
57
51
60
40
30
31
47

Medium Clouds (% Sky Obscured)

84
88
90
91
91
92
92
92
92
93
90
88
86
74
68
76
73
57
51
46
36
31
35
35

High Clouds (% Sky Obscured)

0
0
30
29
30
10
35
45
50
60
81
78
73
73
77
80
57
36
16
12
7
2
2
1

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
3
5
7
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None

Precipitation Probability (%)

62
58
71
78
77
75
68
63
62
58
62
54
48
48
51
54
48
39
26
23
17
4
5
4

Precipitation Amount (mm)

0.3
0.2
0.3
0.5
0.5
0.4
0.4
0.3
0.3
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

23
22
23
22
21
21
21
20
20
21
21
20
20
19
18
16
15
14
13
12
11
10
9
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-18
-19
-20
-20
-21
-21
-21
-21
-21
-21
-21
-21
-22
-22
-21
-22
-22
-22
-22
-22
-22
-22
-22
-23

Dew Point (°C)

-10
-11
-12
-12
-12
-13
-13
-14
-14
-14
-14
-14
-14
-15
-15
-15
-16
-16
-16
-17
-17
-17
-18
-17

Relative Humidity (%)

88
87
85
86
88
86
86
85
85
86
86
86
84
83
83
81
81
81
79
76
77
77
76
76

Pressure (mb)

986
987
988
988
989
990
990
991
992
993
994
995
996
997
997
997
998
998
999
1000
1000
1001
1001
1002

Ozone (du)

422
422
429
423
425
434
443
444
445
438
432
432
432
432
426
421
415
415
414
414
402
390
377
376

Wednesday 31

Waxing Gibbous 92%

13:15

05:58

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

Sun - Rise: 07:31, Set: 16:20, Transit: 11:55. Moon - Rise: 13:15, Set: 05:58. Civil Dark: 16:54 - 06:57. Nautical Dark: 17:31 - 06:20. Astro Dark: 18:07 - 05:44

Total Clouds (% Sky Obscured)

94
94
94
96
72
48
25
19
18
17
51
69
95
94
91
94
94
88
83
88
93
98
99
99

Low Clouds (% Sky Obscured)

70
69
68
67
53
39
25
19
17
13
32
51
70
43
22
0
0
0
0
25
50
79
82
86

Medium Clouds (% Sky Obscured)

39
35
35
34
23
11
0
1
2
2
2
1
0
0
0
0
1
1
2
21
42
63
77
87

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
0
0
0

ISS Passover

Visibility (miles)

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

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 (%)

3
5
6
4
6
6
3
6
7
5
9
9
4
9
9
4
7
6
2
4
4
1
13
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)

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

Chance of Frost

Temperature (°C)

-14
-13
-13
-13
-12
-13
-13
-13
-14
-14
-15
-15
-16
-16
-16
-17
-18
-18
-19
-20
-20
-19
-18
-17

Feels Like (°C)

-22
-21
-22
-22
-21
-19
-19
-19
-19
-20
-20
-21
-21
-20
-20
-20
-20
-23
-23
-23
-24
-24
-25
-23

Dew Point (°C)

-17
-16
-16
-16
-15
-16
-16
-17
-17
-17
-18
-18
-19
-19
-19
-20
-21
-21
-22
-23
-23
-22
-21
-20

Relative Humidity (%)

78
78
78
78
78
78
76
76
78
77
77
76
76
77
76
76
76
77
77
76
78
80
81
79

Pressure (mb)

1002
1003
1002
1002
1002
1002
1003
1003
1004
1004
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1006
1006
1006
1006

Ozone (du)

374
372
372
372
371
376
381
386
388
390
392
393
393
394
400
405
411
413
415
417
416
416
416
423

Thursday 1

Waxing Gibbous 98%

14:07

07:10

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: 07:31, Set: 16:21, Transit: 11:56. Moon - Rise: 14:07, Set: 07:10. Civil Dark: 16:55 - 06:57. Nautical Dark: 17:32 - 06:20. Astro Dark: 18:07 - 05:44

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

89
88
89
89
91
92
92
94
95
97
98
99
100
99
97
95

Medium Clouds (% Sky Obscured)

95
96
98
100
94
87
81
79
77
77
66
56
45
37
28
11

High Clouds (% Sky Obscured)

0
25
32
48
51
53
49
22
13
11
14
14
31
27
18
7

ISS Passover

Visibility (miles)

4
2
1
1
0
0
0
0
2
3
4
3
2
1
4
6

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

17
27
33
37
39
40
40
38
38
35
38
41
39
37
38
40

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-23
-22
-22
-22
-21
-20
-21
-21
-20
-20
-20
-19
-19
-18
-18
-18

Dew Point (°C)

-19
-19
-18
-17
-17
-17
-17
-17
-16
-16
-15
-15
-15
-15
-15
-16

Relative Humidity (%)

78
76
78
79
81
81
81
81
81
81
81
81
81
81
81
79

Pressure (mb)

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

Ozone (du)

431
438
425
412
399
391
382
374
371
368
365
361
356
352
352
351

Forecast for Domaine-Joyeux, Montérégie, Canada (45.22,-73.09)

Generated: 26/12/25 08:57:51. Forecast: 26/12/25 to 01/01/26. Timezone: UTC-5.00