Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 25

First Quarter 52%

10:36

03:40

04 Bad
05 Bad
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

Sun - Rise: 06:43, Set: 19:12, Transit: 12:58. Moon - Rise: 10:36, Set: 03:40. Civil Dark: 19:42 - 06:13. Nautical Dark: 20:17 - 05:38. Astro Dark: 20:54 - 05:01

Total Clouds (% Sky Obscured)

70
47
62
100
100
100
100
100
96
97
100
94
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

14
0
0
1
2
31
35
30
34
17
3
0
22
9
1
30
36
81
67
89
96
82
94
90

Medium Clouds (% Sky Obscured)

0
35
62
100
100
100
100
100
96
97
100
94
100
100
100
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

0
0
3
46
75
91
97
87
70
93
81
76
100
100
100
97
100
100
100
100
100
45
8
3

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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
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
Snow
Snow
Snow

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
28
45
67
82
95
83
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.3
0.5
0.9
0.4
1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-3
-6
-8
-9
-9
-9
-9
-8
-8
-7
-6
-5
-5
-4
-4
-4
-5
-5
-5
-5
-5
-5
-5
-5

Feels Like (°C)

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

Dew Point (°C)

-8
-10
-12
-14
-17
-17
-18
-18
-18
-17
-16
-16
-15
-14
-12
-10
-10
-9
-8
-7
-6
-6
-5
-6

Relative Humidity (%)

69
70
70
65
54
50
46
45
43
43
42
42
43
48
54
64
68
72
76
84
92
92
96
94

Pressure (mb)

1024
1026
1027
1028
1029
1030
1031
1031
1030
1029
1028
1027
1026
1025
1024
1023
1023
1021
1020
1019
1017
1015
1014
1012

Ozone (du)

518
510
499
489
483
481
475
469
462
454
449
439
430
426
428
426
427
429
429
426
423
422
420
418

Thursday 26

Waxing Gibbous 64%

11:49

No Set

04 Bad
05 Bad
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

Sun - Rise: 06:41, Set: 19:13, Transit: 12:57. Moon - Rise: 11:49, Set: No Set. Civil Dark: 19:43 - 06:11. Nautical Dark: 20:19 - 05:36. Astro Dark: 20:56 - 04:59

Total Clouds (% Sky Obscured)

100
99
97
99
98
96
79
100
94
92
100
100
100
100
100
100
100
100
100
100
100
100
99
98

Low Clouds (% Sky Obscured)

93
91
91
89
82
74
55
58
70
62
54
57
53
47
49
54
52
49
48
61
76
82
55
56

Medium Clouds (% Sky Obscured)

99
98
94
98
95
90
76
99
37
36
100
100
100
100
100
100
99
100
100
100
99
100
85
88

High Clouds (% Sky Obscured)

0
0
0
0
0
0
61
37
1
75
100
100
100
100
100
66
100
100
91
100
97
91
86
4

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
9
9
2
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
95
95
81
72
40
38
29
7
3
3
4
19
42
29
18
32
26
17
9
5
7

Precipitation Amount (mm)

0.8
0.8
0.8
1.1
1.3
0.6
0.5
0.1
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
6
5
5
4
4
4
4
5
6
7
7
6
5
4
4
4
4
4
4
8
12
12
12

Chance of Frost

Temperature (°C)

-5
-5
-4
-4
-4
-3
-2
-1
1
2
3
4
4
3
3
2
2
2
2
1
1
-0
-1
-3

Feels Like (°C)

-9
-8
-8
-8
-7
-7
-6
-3
-2
-1
-0
0
-0
-0
-1
-2
-2
-2
-2
-2
-4
-6
-7
-8

Dew Point (°C)

-5
-5
-5
-5
-4
-3
-2
-1
0
2
3
4
4
3
3
2
2
1
1
1
-0
-3
-4
-5

Relative Humidity (%)

96
96
96
96
96
96
96
96
94
100
100
100
98
100
100
100
98
96
96
96
93
81
83
81

Pressure (mb)

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

Ozone (du)

412
414
419
414
403
401
405
400
397
390
375
369
362
360
359
360
359
352
349
346
346
353
352
349

Friday 27

Waxing Gibbous 74%

13:07

04:21

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

Sun - Rise: 06:39, Set: 19:15, Transit: 12:57. Moon - Rise: 13:07, Set: 04:21. Civil Dark: 19:45 - 06:09. Nautical Dark: 20:20 - 05:34. Astro Dark: 20:57 - 04:57

Total Clouds (% Sky Obscured)

46
52
50
31
25
7
2
2
2
9
29
25
20
20
20
20
20
12
24
48
60
54
50
36

Low Clouds (% Sky Obscured)

7
28
38
31
25
7
1
1
1
9
24
25
20
20
20
20
20
6
3
3
4
2
3
5

Medium Clouds (% Sky Obscured)

46
52
50
0
0
0
0
0
0
0
0
0
0
0
20
20
20
11
24
48
60
47
37
25

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 (%)

2
1
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)

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

Chance of Frost

Temperature (°C)

-3
-5
-6
-7
-7
-8
-7
-7
-6
-6
-5
-5
-4
-4
-5
-6
-7
-8
-9
-9
-10
-11
-12
-13

Feels Like (°C)

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

Dew Point (°C)

-6
-8
-9
-10
-11
-12
-13
-13
-13
-13
-13
-12
-12
-11
-10
-10
-10
-11
-12
-12
-13
-14
-15
-15

Relative Humidity (%)

81
79
77
77
76
70
64
59
57
55
54
54
55
59
66
70
74
75
77
78
77
76
78
79

Pressure (mb)

1011
1013
1015
1016
1018
1020
1022
1022
1022
1023
1023
1023
1023
1023
1024
1025
1026
1027
1028
1028
1029
1029
1030
1030

Ozone (du)

348
346
347
349
358
364
374
378
383
392
393
389
388
389
385
385
387
391
400
402
410
412
413
415

Saturday 28

Waxing Gibbous 83%

14:26

04:51

04 OK
05 OK
06 OK
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 OK
22 OK
23 Bad
00 Bad
01 OK
02 Bad
03 Bad

Sun - Rise: 06:37, Set: 19:16, Transit: 12:57. Moon - Rise: 14:26, Set: 04:51. Civil Dark: 19:46 - 06:07. Nautical Dark: 20:22 - 05:32. Astro Dark: 20:59 - 04:55

Total Clouds (% Sky Obscured)

32
33
44
82
86
94
86
78
62
44
45
51
48
61
81
95
74
29
23
46
46
46
54
70

Low Clouds (% Sky Obscured)

6
6
5
5
5
14
16
31
42
44
45
51
48
61
76
85
72
14
8
4
8
46
54
70

Medium Clouds (% Sky Obscured)

18
33
44
82
83
94
71
65
58
44
34
4
5
14
49
86
31
17
17
37
33
32
34
46

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
7
8
9
9
9
9
3
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

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 (%)

0
0
0
0
0
0
0
3
3
16
6
6
6
27
48
11
6
7
8
8
6
2
3
6

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
8
7
6
5
4
3
3
3
4
6
7
8
9
9
8
9
8
8
8
7
7
6
6

Chance of Frost

Temperature (°C)

-13
-14
-14
-14
-13
-12
-11
-11
-9
-8
-7
-6
-6
-5
-5
-5
-5
-6
-7
-7
-7
-7
-7
-7

Feels Like (°C)

-16
-17
-17
-17
-17
-16
-15
-14
-13
-13
-12
-12
-11
-10
-10
-9
-10
-10
-10
-10
-11
-11
-11
-11

Dew Point (°C)

-16
-16
-17
-17
-17
-17
-17
-16
-16
-15
-14
-14
-13
-12
-9
-7
-9
-9
-9
-9
-9
-9
-9
-9

Relative Humidity (%)

79
81
79
79
71
65
63
62
60
58
56
54
56
59
74
84
76
80
84
85
85
85
87
87

Pressure (mb)

1030
1031
1031
1032
1032
1032
1032
1032
1032
1031
1030
1030
1029
1028
1028
1028
1028
1028
1028
1028
1029
1029
1029
1029

Ozone (du)

428
446
465
489
515
527
520
514
509
504
502
497
491
486
481
483
491
503
503
493
480
473
469
464

Sunday 29

Waxing Gibbous 91%

15:42

05:15

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

Sun - Rise: 06:36, Set: 19:17, Transit: 12:56. Moon - Rise: 15:42, Set: 05:15. Civil Dark: 19:47 - 06:06. Nautical Dark: 20:23 - 05:30. Astro Dark: 21:01 - 04:52

Total Clouds (% Sky Obscured)

88
53
54
55
49
33
18
60
71
84
89
93
97
98
90
17
37
52
68
79
90
100
100
100

Low Clouds (% Sky Obscured)

71
22
29
38
41
32
18
48
61
75
64
56
63
80
77
17
32
43
59
51
41
32
50
70

Medium Clouds (% Sky Obscured)

57
53
54
55
39
18
0
0
0
2
13
21
27
32
34
17
33
34
33
59
79
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
3
5
7
9
12
20
23
27

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 (%)

4
6
3
1
1
1
0
1
1
1
0
1
1
3
4
4
8
7
7
6
4
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
87
87
80
71
66
61
57
55
56
56
59
64
66
70
75
76
76
78
78
79
79
78

Pressure (mb)

1030
1030
1031
1032
1032
1033
1033
1033
1033
1032
1031
1031
1030
1029
1029
1029
1028
1028
1027
1026
1025
1025
1024
1022

Ozone (du)

465
456
448
447
438
436
437
436
441
444
445
444
441
439
437
435
432
430
428
425
422
419
415
412

Monday 30

Waxing Gibbous 96%

16:55

05:35

04 Bad
05 Bad
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

Sun - Rise: 06:34, Set: 19:19, Transit: 12:56. Moon - Rise: 16:55, Set: 05:35. Civil Dark: 19:49 - 06:04. Nautical Dark: 20:25 - 05:28. Astro Dark: 21:02 - 04:50

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
94
89
79
80
83
83
71
58
41
37
43
50
74
97
100
94
87

Low Clouds (% Sky Obscured)

96
94
91
91
90
86
77
70
59
51
57
67
74
63
58
41
37
43
40
35
35
30
20
17

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
73
46
19
26
28
43
51
58
41
37
43
50
74
96
100
79
59

High Clouds (% Sky Obscured)

40
67
83
100
83
67
50
60
69
79
80
82
75
71
58
41
37
43
50
49
48
70
76
76

ISS Passover

Visibility (miles)

9
9
9
9
9
6
3
0
3
6
9
9
9
9
6
3
1
2
3
5
6
8
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Light Rain
Very Light Rain
None
None
Very Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

0
26
40
52
61
72
83
85
85
79
67
55
43
68
80
82
67
50
27
24
20
16
11
7

Precipitation Amount (mm)

0
0
0.1
0.2
0.3
0.3
0.5
0.5
0.5
0.4
0.3
0
0
0.3
0.4
0.4
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-1
-1
-0
0
1
1
1
1
2
3
4
4
5
5
5
4
3
3
3
3
2
2
2
1

Feels Like (°C)

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

Dew Point (°C)

-5
-5
-4
-4
-4
-3
-1
0
1
2
3
3
4
5
4
3
3
3
3
2
2
1
1
-1

Relative Humidity (%)

77
75
74
71
70
78
86
96
94
96
94
94
94
94
96
98
98
100
98
98
94
93
91
88

Pressure (mb)

1021
1020
1019
1017
1016
1015
1014
1013
1012
1012
1011
1011
1011
1011
1011
1012
1012
1013
1013
1014
1015
1016
1017
1017

Ozone (du)

408
404
403
402
402
400
399
398
398
399
399
398
396
395
394
393
392
393
393
394
394
394
394
394

Tuesday 31

Waxing Gibbous 99%

18:06

05:52

04 Bad
05 Bad
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

Sun - Rise: 06:32, Set: 19:20, Transit: 12:56. Moon - Rise: 18:06, Set: 05:52. Civil Dark: 19:50 - 06:02. Nautical Dark: 20:26 - 05:25. Astro Dark: 21:04 - 04:48

Total Clouds (% Sky Obscured)

81
87
94
100
100
100
100
93
86
79
71
62
54
69
84
100
100
100
100
100
99
99

Low Clouds (% Sky Obscured)

9
1
1
0
3
6
9
6
4
1
1
1
3
3
3
3
4
5
7
8
10
11

Medium Clouds (% Sky Obscured)

39
27
15
4
34
66
95
75
59
31
27
23
19
31
40
53
66
78
89
92
96
99

High Clouds (% Sky Obscured)

69
80
90
100
97
90
85
73
66
55
48
42
31
49
73
100
100
100
100
76
68
56

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

Fog (%)

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
9
8

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

Wind Speed/Direction (mph)

6
5
7
8
10
9
8
8
7
6
5
5
4
4
4
5
7
9
11
13
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
84
81
80
77
68
62
57
52
51
47
49
49
51
57
65
72
72
71
69
71
71

Pressure (mb)

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

Ozone (du)

393
393
393
394
394
395
397
398
395
392
389
388
387
386
384
381
379
376
374
372
371
370

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

Generated: 25/03/26 04:39:44. Forecast: 25/03/26 to 31/03/26. Timezone: UTC-4.00