Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 29

Waxing Gibbous 74%

12:09

03:13

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: 07:31, 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
100
100
100
100
100
100
100
76
65
100
98
99
100
97
100
99
99
94
92
93
99
99
96

Low Clouds (% Sky Obscured)

98
100
100
98
87
88
97
78
66
63
82
92
96
99
84
100
98
98
89
86
89
98
96
92

Medium Clouds (% Sky Obscured)

92
75
70
70
70
70
70
100
46
65
74
66
65
81
64
66
82
83
70
67
52
54
51
86

High Clouds (% Sky Obscured)

100
100
3
33
0
0
0
0
0
0
2
30
30
2
0
0
0
0
0
0
3
3
0
0

ISS Passover

Visibility (miles)

1
0
0
7
0
0
0
3
9
9
9
9
1
7
0
2
2
1
0
0
1
1
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

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

Precipitation Probability (%)

87
24
74
88
95
95
91
54
11
2
9
25
41
34
35
27
27
35
35
27
26
25
28
33

Precipitation Amount (mm)

0.5
0
0.4
0.6
0.9
1.1
0.7
0.1
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
3
5
8
6
8
10
12
13
11
11
13
16
17
19
18
18
20
21
23
23
22
21
21

Chance of Frost

Temperature (°C)

2
2
3
2
2
2
1
1
0
-1
-2
-2
-3
-4
-6
-8
-9
-10
-11
-12
-12
-13
-13
-14

Feels Like (°C)

-2
-2
-2
-3
-2
-3
-4
-5
-6
-7
-7
-8
-9
-11
-13
-16
-17
-19
-20
-21
-22
-22
-23
-23

Dew Point (°C)

2
2
3
2
2
2
0
-2
-4
-5
-5
-6
-5
-7
-8
-11
-12
-12
-13
-14
-15
-16
-16
-16

Relative Humidity (%)

100
100
98
98
100
98
93
81
77
74
79
74
84
78
87
82
80
81
81
83
79
79
81
81

Pressure (mb)

989
988
987
987
987
986
986
986
987
986
986
986
985
985
986
987
988
989
989
990
991
991
993
994

Ozone (du)

319
320
323
324
322
326
333
354
371
375
376
380
386
384
388
373
364
369
374
377
374
374
387
399

Tuesday 30

Waxing Gibbous 84%

12:37

04:37

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: 07:31, 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)

94
94
96
98
99
97
100
100
99
99
99
98
100
100
100
100
98
84
73
46
58
79
86
56

Low Clouds (% Sky Obscured)

90
86
93
96
97
94
98
96
92
92
94
94
100
100
100
100
98
84
73
46
58
78
73
20

Medium Clouds (% Sky Obscured)

89
87
85
90
75
87
89
100
97
95
94
92
92
49
47
45
43
52
51
14
11
29
30
32

High Clouds (% Sky Obscured)

0
0
0
0
0
0
1
26
53
58
1
5
68
92
0
1
4
41
40
5
9
4
4
14

ISS Passover

Visibility (miles)

0
0
0
0
1
1
0
0
0
2
2
2
6
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
Snow
Snow
None
None
None
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

32
45
41
30
30
25
40
34
31
25
26
28
22
18
15
16
16
12
7
2
1
1
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

21
22
22
21
20
20
19
18
19
18
17
18
17
16
16
15
15
14
14
14
13
13
11
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
83
83
81
76
78
79
83
79
78
76
76
74
72
71
70
70
70
69
70
72
71
74
74

Pressure (mb)

994
995
995
995
995
996
996
997
998
998
998
999
999
999
999
999
1000
1001
1001
1001
1002
1002
1003
1003

Ozone (du)

408
420
427
443
443
449
453
447
459
461
452
450
441
443
441
434
424
406
406
406
402
405
410
409

Wednesday 31

Waxing Gibbous 92%

13:15

05:58

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 OK
09 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)

80
89
89
89
100
100
100
100
93
96
97
98
100
100
100
100
100
64
59
60
44
38
22
50

Low Clouds (% Sky Obscured)

21
12
15
15
20
69
70
80
80
90
88
96
91
95
94
93
97
64
59
60
44
38
22
17

Medium Clouds (% Sky Obscured)

58
76
88
88
100
100
100
100
91
89
95
95
100
100
100
100
98
43
38
47
3
4
2
2

High Clouds (% Sky Obscured)

26
10
87
89
87
83
75
100
66
0
0
7
0
0
0
0
0
0
0
0
0
2
0
0

ISS Passover

Visibility (miles)

9
9
8
7
7
7
8
9
8
9
9
2
1
0
0
0
7
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None

Precipitation Probability (%)

1
1
15
18
20
10
8
12
20
26
32
46
55
68
73
65
58
44
23
6
3
2
1
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.1
0.2
0.3
0.3
0.2
0.2
0.1
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
72
72
75
80
85
86
88
90
88
88
90
90
92
92
88
81
79
83
81
81
80
81
77

Pressure (mb)

1003
1003
1002
1002
1001
1002
1002
1001
1001
1001
1001
1000
1000
1000
1000
1000
1001
1002
1003
1003
1004
1005
1006
1006

Ozone (du)

400
391
389
388
397
415
423
435
428
427
438
445
451
458
459
450
446
434
417
398
391
384
374
367

Thursday 1

Waxing Gibbous 98%

14:07

07:10

10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 OK
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: 07:31, 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)

60
61
59
58
58
61
42
52
71
65
70
82
97
98
100
100
98
82
99
98
95
96
97
99

Low Clouds (% Sky Obscured)

22
33
35
29
40
57
13
7
7
17
43
73
92
96
96
98
97
73
99
98
95
96
97
97

Medium Clouds (% Sky Obscured)

4
6
8
6
5
4
22
45
60
53
43
30
31
35
35
28
31
34
37
39
37
41
44
44

High Clouds (% Sky Obscured)

3
2
1
5
9
13
40
52
71
63
32
0
32
63
95
63
32
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

2
0
1
5
6
9
9
9
9
9
9
9
9
1
0
2
3
4
3
0
0
0
0
3

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
Snow
None
None
None
None

Precipitation Probability (%)

12
15
4
2
4
1
0
0
0
0
0
0
2
21
24
26
19
19
26
33
29
32
18
14

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
77
72
72
72
76
77
80
80
80
80
78
79
81
86
86
86
86
86
88
88
88
90
88

Pressure (mb)

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

Ozone (du)

362
360
358
354
350
347
346
341
333
331
332
334
344
357
356
370
386
393
391
384
377
363
351
344

Friday 2

Waxing Gibbous 100%

15:14

08:07

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: 07:31, Set: 16:22, Transit: 11:56. Moon - Rise: 15:14, Set: 08:07. Civil Dark: 16:55 - 06:57. Nautical Dark: 17:33 - 06:20. Astro Dark: 18:08 - 05:44

Total Clouds (% Sky Obscured)

98
98
98
98
99
99
99
99
99
100
100
100
100
100
100
99
99
100
99
99
98
98
97
97

Low Clouds (% Sky Obscured)

95
92
91
90
89
89
87
85
83
90
95
99
99
99
99
96
98
100
97
94
90
89
89
90

Medium Clouds (% Sky Obscured)

53
80
78
83
84
90
92
92
91
91
93
94
91
87
85
91
92
90
77
64
51
47
45
43

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
3
2
7
7
8
9
8
2
3
4
5
3
0
0
0
0
0
3
5
8
8
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
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None

Precipitation Probability (%)

17
19
28
24
29
23
25
26
24
28
32
34
37
34
40
44
45
46
45
43
37
35
31
24

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-15
-14
-14
-14
-12
-12
-12
-13
-13
-13
-13
-13
-13
-13
-13
-12
-13
-13
-13
-13
-12
-13
-16
-16

Dew Point (°C)

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

Relative Humidity (%)

85
82
80
83
80
79
87
88
90
90
90
90
88
87
90
92
92
94
92
90
88
86
83
78

Pressure (mb)

1007
1007
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1007
1007
1008
1009
1009
1010

Ozone (du)

345
344
348
348
363
369
395
397
399
408
420
408
394
391
388
378
379
380
381
373
366
358
358
357

Saturday 3

Full Moon 99%

16:32

08:49

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

Sun - Rise: 07:31, Set: 16:23, Transit: 11:57. Moon - Rise: 16:32, Set: 08:49. Civil Dark: 16:56 - 06:57. Nautical Dark: 17:33 - 06:20. Astro Dark: 18:09 - 05:44

Total Clouds (% Sky Obscured)

89
86
83
80
78
75
52
30
9
12
15
19
17
15
13
18
20
23
35
47
57
66
68
80

Low Clouds (% Sky Obscured)

87
85
83
80
78
75
51
27
6
8
11
7
4
1
0
0
0
0
0
0
3
7
17
25

Medium Clouds (% Sky Obscured)

45
39
45
33
17
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
7
10

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
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 (%)

22
19
13
14
13
9
10
9
3
5
4
1
2
2
1
2
2
1
2
2
1
2
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-16
-17
-17
-17
-18
-19
-20
-20
-21
-21
-23
-22
-22
-22
-22
-21
-21
-21
-22
-22
-22
-22
-24
-24

Dew Point (°C)

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

Relative Humidity (%)

75
73
71
70
73
74
77
78
79
82
81
80
81
80
81
81
80
79
79
78
78
77
75
73

Pressure (mb)

1011
1011
1011
1011
1012
1013
1013
1014
1015
1016
1017
1017
1018
1018
1018
1019
1019
1020
1021
1021
1022
1022
1023
1023

Ozone (du)

357
358
359
360
364
369
373
375
376
378
382
386
390
392
393
395
390
385
379
378
377
376
375
373

Sunday 4

Waning Gibbous 95%

17:55

09:20

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

Sun - Rise: 07:30, Set: 16:24, Transit: 11:57. Moon - Rise: 17:55, Set: 09:20. Civil Dark: 16:57 - 06:57. Nautical Dark: 17:34 - 06:20. Astro Dark: 18:10 - 05:44

Total Clouds (% Sky Obscured)

78
76
74
80
88
96
97
98
98
73
48
28
33
48
62
76
89
99
100
100
100

Low Clouds (% Sky Obscured)

22
20
17
20
27
35
46
57
62
59
47
28
33
41
55
56
58
59
73
80
91

Medium Clouds (% Sky Obscured)

12
13
12
4
0
0
0
4
4
4
5
10
10
10
5
36
67
97
98
99
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
3
7
24
51
73
94
94
94
95

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
Snow
Snow
Snow
Snow

Precipitation Probability (%)

2
2
0
1
1
0
2
1
0
4
6
8
13
17
20
27
33
40
50
57
64

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.2
0.2
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-24
-24
-24
-23
-22
-22
-22
-22
-22
-22
-24
-24
-23
-23
-23
-23
-23
-23
-23
-23
-23

Dew Point (°C)

-22
-22
-22
-21
-21
-21
-20
-21
-22
-22
-23
-23
-23
-23
-23
-23
-23
-22
-21
-21
-20

Relative Humidity (%)

70
69
67
65
68
72
75
76
78
78
78
77
75
74
73
76
75
74
74
73
71

Pressure (mb)

1024
1023
1023
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1020
1019
1019
1018
1017
1017
1016
1015

Ozone (du)

372
371
370
369
359
348
338
336
334
333
332
331
330
332
333
335
335
336
336
336
335

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

Generated: 29/12/25 09:33:35. Forecast: 29/12/25 to 04/01/26. Timezone: UTC-5.00