Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 2

Waning Gibbous 98%

18:06

07:50

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

Sun - Rise: 07:16, Set: 17:01, Transit: 12:08. Moon - Rise: 18:06, Set: 07:50. Civil Dark: 17:33 - 06:44. Nautical Dark: 18:09 - 06:08. Astro Dark: 18:45 - 05:31

Total Clouds (% Sky Obscured)

14
12
8
2
0
0
2
1
2
1
3
2
5
17
4
36
36
28
54
74
100
100
100
100

Low Clouds (% Sky Obscured)

1
1
1
0
0
0
2
1
2
1
2
2
5
17
4
22
20
25
35
35
35
35
35
45

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
50
60
67
81

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
2
3
4
36
24
26
54
74
100
100
97
89

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
8
3
3
2
2
2
1
2
2
2
2
2

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

Chance of Frost

Temperature (°C)

-23
-22
-21
-16
-12
-10
-8
-7
-6
-6
-6
-8
-9
-11
-11
-12
-13
-14
-14
-14
-14
-13
-13
-14

Feels Like (°C)

-25
-25
-23
-19
-15
-13
-10
-9
-9
-8
-8
-9
-12
-13
-14
-16
-17
-18
-18
-17
-18
-17
-17
-18

Dew Point (°C)

-25
-25
-24
-20
-16
-14
-12
-11
-10
-9
-8
-9
-11
-12
-13
-14
-15
-16
-16
-15
-16
-15
-15
-15

Relative Humidity (%)

75
73
72
72
70
71
71
71
74
76
84
88
88
88
86
88
86
84
86
86
86
88
86
86

Pressure (mb)

1018
1018
1019
1018
1018
1017
1017
1016
1016
1015
1016
1017
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

415
421
423
420
416
417
417
418
419
421
424
427
425
421
415
407
404
408
414
396
381
380
380
386

Tuesday 3

Waning Gibbous 93%

19:22

08:11

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
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 07:14, Set: 17:03, Transit: 12:09. Moon - Rise: 19:22, Set: 08:11. Civil Dark: 17:35 - 06:43. Nautical Dark: 18:11 - 06:07. Astro Dark: 18:46 - 05:30

Total Clouds (% Sky Obscured)

100
97
93
91
100
97
91
89
95
94
98
98
99
99
100
100
95
93
98
98
97
99
99
98

Low Clouds (% Sky Obscured)

45
40
56
21
18
26
24
30
70
85
90
91
92
91
89
82
79
79
89
83
86
88
91
87

Medium Clouds (% Sky Obscured)

100
97
90
91
100
97
91
89
84
52
68
94
97
95
98
99
80
70
47
46
47
52
56
65

High Clouds (% Sky Obscured)

64
56
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

2
3
3
4
5
8
9
7
2
0
0
0
0
0
0
0
0
0
1
0
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
9
74
86
88

Precipitation Type

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

Precipitation Probability (%)

1
0
0
0
0
6
18
17
27
29
28
28
25
31
37
36
37
25
27
30
32
29
32
31

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-14
-14
-15
-14
-12
-9
-7
-6
-6
-5
-6
-7
-8
-8
-9
-10
-10
-11
-11
-11
-12
-12
-12
-12

Feels Like (°C)

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

Dew Point (°C)

-16
-16
-16
-15
-13
-10
-9
-9
-8
-7
-7
-8
-9
-9
-10
-11
-11
-12
-13
-13
-13
-13
-13
-13

Relative Humidity (%)

88
88
88
92
90
87
83
80
85
90
94
92
92
94
92
92
90
92
90
88
90
88
88
88

Pressure (mb)

1018
1018
1019
1018
1018
1018
1017
1016
1016
1016
1016
1017
1017
1018
1018
1018
1018
1017
1017
1017
1018
1017
1017
1018

Ozone (du)

397
395
392
393
393
393
387
378
377
374
381
384
385
389
391
393
394
397
399
400
401
398
395
395

Wednesday 4

Waning Gibbous 87%

20:35

08:28

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
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 07:13, Set: 17:04, Transit: 12:09. Moon - Rise: 20:35, Set: 08:28. Civil Dark: 17:36 - 06:41. Nautical Dark: 18:12 - 06:05. Astro Dark: 18:47 - 05:29

Total Clouds (% Sky Obscured)

98
98
98
67
83
86
93
92
97
95
89
94
85
87
90
98
100
100
99
99
100
100
91
81

Low Clouds (% Sky Obscured)

91
94
95
46
71
74
74
80
90
86
73
85
71
69
76
77
81
78
76
75
77
73
85
81

Medium Clouds (% Sky Obscured)

78
87
76
23
1
4
37
2
0
0
0
0
2
2
19
72
92
92
89
92
96
100
72
43

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
2
2
9
7
29
45
50
50
45
45
50
40

ISS Passover

Visibility (miles)

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

Fog (%)

89
88
99
100
19
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 (%)

30
30
23
13
14
9
23
24
22
23
8
12
2
0
12
4
1
13
1
3
8
18
31
35

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)

2
2
3
3
4
6
7
7
8
7
6
6
6
6
6
6
6
5
4
4
4
4
4
4

Chance of Frost

Temperature (°C)

-13
-13
-13
-13
-11
-9
-7
-7
-7
-7
-7
-8
-9
-11
-13
-14
-14
-14
-14
-15
-15
-15
-14
-15

Feels Like (°C)

-16
-17
-17
-16
-14
-13
-12
-12
-11
-11
-12
-12
-14
-15
-17
-18
-18
-18
-18
-19
-18
-18
-18
-19

Dew Point (°C)

-14
-15
-15
-14
-12
-11
-10
-9
-9
-10
-9
-10
-11
-12
-14
-15
-15
-15
-15
-16
-16
-16
-16
-17

Relative Humidity (%)

90
88
90
88
86
85
82
83
82
80
87
88
90
92
90
90
88
90
90
88
88
86
86
86

Pressure (mb)

1018
1018
1019
1019
1018
1018
1017
1017
1017
1017
1017
1018
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1018
1017

Ozone (du)

393
394
393
393
399
405
406
404
403
401
400
397
391
394
398
397
416
434
428
421
417
408
409
413

Thursday 5

Waning Gibbous 79%

21:45

08:44

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
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 07:12, Set: 17:06, Transit: 12:09. Moon - Rise: 21:45, Set: 08:44. Civil Dark: 17:37 - 06:40. Nautical Dark: 18:13 - 06:04. Astro Dark: 18:48 - 05:28

Total Clouds (% Sky Obscured)

71
70
71
70
64
61
59
65
75
77
71
67
56
75
86
99
99
99
100
99
99
98
98
99

Low Clouds (% Sky Obscured)

71
70
71
70
64
61
59
65
75
77
71
67
56
75
81
92
97
98
99
99
99
89
79
97

Medium Clouds (% Sky Obscured)

20
20
25
25
30
40
38
2
2
2
0
0
0
13
24
29
35
71
85
55
48
65
83
90

High Clouds (% Sky Obscured)

15
0
0
0
0
0
0
0
1
2
2
1
0
24
43
64
64
71
78
55
43
15
40
72

ISS Passover

Visibility (miles)

0
0
0
0
1
1
1
1
1
1
2
8
5
1
1
1
1
1
2
2
3
3
5
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 (%)

37
29
23
19
22
12
21
26
18
21
1
0
2
0
0
0
1
11
0
0
2
3
8
10

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
5
5
7
8
8
7
7
7
7
7
6
4
3
3
3
3
3
3
2
2
2
2
3

Chance of Frost

Temperature (°C)

-16
-16
-16
-15
-15
-14
-13
-12
-12
-12
-12
-13
-16
-18
-19
-20
-21
-21
-21
-20
-21
-21
-20
-18

Feels Like (°C)

-19
-20
-20
-20
-20
-19
-18
-18
-18
-18
-17
-18
-20
-22
-24
-24
-25
-25
-25
-24
-25
-25
-23
-22

Dew Point (°C)

-17
-18
-18
-18
-18
-17
-16
-16
-15
-15
-15
-16
-18
-20
-22
-23
-23
-24
-23
-22
-24
-24
-22
-20

Relative Humidity (%)

88
86
84
82
81
78
78
76
78
78
81
79
81
81
80
77
77
76
77
80
76
75
80
80

Pressure (mb)

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

Ozone (du)

416
418
419
422
423
422
424
426
422
415
411
410
404
404
397
391
393
410
398
397
398
400
402
404

Friday 6

Waning Gibbous 70%

22:55

09:00

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
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 07:10, Set: 17:07, Transit: 12:09. Moon - Rise: 22:55, Set: 09:00. Civil Dark: 17:39 - 06:39. Nautical Dark: 18:15 - 06:03. Astro Dark: 18:50 - 05:27

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
95
89
81
77

Low Clouds (% Sky Obscured)

95
94
93
94
94
94
95
95
95
96
97
96
97
97
96
94
95
96
97
93
88
86
81
77

Medium Clouds (% Sky Obscured)

96
97
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99
81
66
50
50
45

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
91
84
76
51
71
69
68
66
50
14
5
4
0
1
0
0
0

ISS Passover

Visibility (miles)

9
9
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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

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

Precipitation Probability (%)

9
17
34
52
52
54
53
56
54
54
56
57
59
87
76
61
59
57
55
59
61
62
61
56

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

4
4
5
7
7
8
9
8
8
7
6
5
4
3
4
7
11
11
12
13
12
12
12
12

Chance of Frost

Temperature (°C)

-17
-17
-16
-14
-14
-13
-12
-12
-12
-11
-11
-12
-12
-12
-13
-14
-15
-15
-16
-17
-17
-18
-18
-19

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
81
83
84
84
84
83
85
83
83
86
86
86
86
86
86
88
88
88
89
88
87
87
88

Pressure (mb)

1008
1007
1006
1005
1004
1003
1001
1000
999
998
998
997
997
997
997
997
998
998
998
998
999
999
1000
1001

Ozone (du)

406
404
410
417
416
420
421
422
424
423
424
421
421
421
425
429
433
434
435
437
446
455
464
464

Saturday 7

Waning Gibbous 61%

00:03

09:17

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
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 07:09, Set: 17:09, Transit: 12:09. Moon - Rise: 00:03, Set: 09:17. Civil Dark: 17:40 - 06:37. Nautical Dark: 18:16 - 06:02. Astro Dark: 18:51 - 05:25

Total Clouds (% Sky Obscured)

74
71
69
66
66
67
67
69
71
73
73
72
85
86
91
95
98
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

72
68
67
66
66
67
67
69
71
73
72
70
69
69
69
83
85
80
77
66
41
10
0
0

Medium Clouds (% Sky Obscured)

40
35
15
5
5
5
5
5
5
10
15
20
60
86
91
95
98
100
100
100
100
95
90
80

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
4
8
12
31
51
74
82
91
100
95
95

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
2
4

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

Precipitation Probability (%)

49
49
47
45
42
38
34
30
25
19
19
20
20
19
17
15
23
29
35
28
21
8
9
8

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-24
-24
-25
-25
-24
-22
-23
-22
-21
-21
-22
-22
-22
-23
-25
-26
-25
-26
-25
-24
-26
-26
-26
-26

Dew Point (°C)

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

Relative Humidity (%)

87
86
85
86
87
85
84
86
84
82
82
82
82
79
80
81
81
81
80
80
79
77
76
75

Pressure (mb)

1002
1003
1003
1004
1005
1005
1005
1005
1006
1006
1007
1008
1009
1010
1010
1011
1012
1012
1013
1013
1014
1015
1015
1016

Ozone (du)

463
463
456
449
442
439
437
434
437
441
444
453
461
470
470
470
470
469
468
468
465
461
458
459

Sunday 8

Waning Gibbous 51%

01:12

09:37

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
23 Bad
00 Bad

Sun - Rise: 07:07, Set: 17:10, Transit: 12:09. Moon - Rise: 01:12, Set: 09:37. Civil Dark: 17:42 - 06:36. Nautical Dark: 18:17 - 05:59. Astro Dark: 18:53 - 05:24

Total Clouds (% Sky Obscured)

95
90
90
90
90
90
80
80
85
85
80
80
90
90
95
95
95
95
95

Low Clouds (% Sky Obscured)

0
0
0
26
40
57
64
65
65
60
55
55
50
50
45
45
45
50
50

Medium Clouds (% Sky Obscured)

40
35
30
30
30
20
15
11
10
5
10
15
20
23
24
32
55
69
84

High Clouds (% Sky Obscured)

90
86
83
79
62
45
20
16
11
12
7
4
2
0
0
5
0
0
0

ISS Passover

Visibility (miles)

6
8
7
6
4
3
2
1
2
2
3
3
3
4
4
3
3
3
4

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 (%)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-25
-25
-28
-28
-28
-28
-28
-28
-26
-26
-26
-26
-26
-26
-29
-29
-30
-29
-29

Dew Point (°C)

-22
-23
-23
-22
-22
-21
-20
-19
-21
-21
-21
-22
-23
-24
-25
-25
-26
-26
-26

Relative Humidity (%)

73
72
73
74
74
76
78
79
78
77
76
75
73
70
70
69
69
70
70

Pressure (mb)

1017
1017
1018
1018
1019
1019
1018
1018
1018
1019
1019
1019
1020
1021
1021
1021
1021
1021
1021

Ozone (du)

460
460
458
456
454
454
453
453
451
449
446
443
439
435
433
432
430
430
430

Forecast for Lac-Saint-Louis, Lanaudière, Canada (46.57,-73.80)

Generated: 02/02/26 06:18:47. Forecast: 02/02/26 to 08/02/26. Timezone: UTC-5.00