Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 16

Waning Crescent 2%

06:26

16:25

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
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 07:01, Set: 19:02, Transit: 13:02. Moon - Rise: 06:26, Set: 16:25. Civil Dark: 19:31 - 06:31. Nautical Dark: 20:06 - 05:57. Astro Dark: 20:41 - 05:21

Total Clouds (% Sky Obscured)

95
95
74
100
100
100
100
100
94
100
100
100
100
99
100
92
39
61
75
47
68
94
98
89

Low Clouds (% Sky Obscured)

54
56
56
49
46
44
52
100
83
91
95
90
100
83
55
84
39
61
75
47
68
93
98
86

Medium Clouds (% Sky Obscured)

47
22
74
93
100
100
100
100
88
88
100
100
100
95
80
14
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

39
62
74
100
100
100
100
100
31
100
100
100
99
0
0
0
0
0
2
0
0
0
0
0

ISS Passover

Visibility (miles)

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

None
None
None
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
4
8
28
41
31
26
73
95
95
95
95
95
95
20
14
5
5
9
9
18
6
15
3

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.4
1.7
1
1.7
3
1.4
0.7
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
11
11
17
19
18
17
16
13
16
14
19
21
19
20
21
23
24
24
24
23
23
22
20

Chance of Frost

Temperature (°C)

8
10
9
11
11
11
11
12
10
6
5
3
2
1
1
1
-0
-2
-3
-4
-5
-5
-6
-6

Feels Like (°C)

2
4
4
6
6
6
7
8
7
1
-0
-4
-6
-6
-7
-8
-9
-10
-11
-13
-12
-13
-14
-14

Dew Point (°C)

4
6
6
9
9
9
10
10
9
5
3
2
0
-1
-3
-6
-7
-10
-9
-12
-13
-12
-14
-14

Relative Humidity (%)

79
80
81
87
88
88
88
90
93
91
88
89
88
89
74
62
60
56
64
54
53
56
53
53

Pressure (mb)

998
997
996
994
993
992
990
989
988
988
987
987
988
990
990
991
993
995
997
998
999
1001
1002
1003

Ozone (du)

346
346
345
347
349
349
350
352
351
353
358
367
373
381
394
401
404
407
417
424
428
431
437
447

Tuesday 17

Waning Crescent 0%

06:45

17:39

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

Sun - Rise: 06:59, Set: 19:03, Transit: 13:02. Moon - Rise: 06:45, Set: 17:39. Civil Dark: 19:33 - 06:29. Nautical Dark: 20:07 - 05:55. Astro Dark: 20:43 - 05:19

Total Clouds (% Sky Obscured)

90
93
94
87
84
86
97
94
82
63
34
29
32
31
10
0
2
2
6
12
14
21
22
17

Low Clouds (% Sky Obscured)

85
89
89
74
72
71
71
72
75
62
34
29
32
31
10
0
1
1
6
11
14
21
17
1

Medium Clouds (% Sky Obscured)

0
0
0
0
0
11
45
37
35
18
0
0
0
0
0
0
0
0
0
0
0
0
7
9

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
4
4
4

ISS Passover

Visibility (miles)

3
3
3
3
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
21
17
8
6
3
0
0
0
0
1
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)

20
19
18
18
17
15
14
14
13
13
13
12
12
12
11
11
10
9
8
7
7
7
8
8

Chance of Frost

Temperature (°C)

-7
-7
-8
-8
-9
-9
-10
-10
-10
-10
-10
-11
-11
-11
-11
-11
-11
-11
-11
-11
-10
-9
-8
-6

Feels Like (°C)

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

Dew Point (°C)

-14
-14
-14
-16
-17
-18
-18
-19
-18
-19
-19
-19
-20
-20
-20
-20
-20
-20
-21
-21
-21
-20
-19
-19

Relative Humidity (%)

56
59
59
53
50
51
51
48
49
47
47
48
47
47
46
47
48
47
45
43
41
39
38
37

Pressure (mb)

1005
1006
1007
1009
1011
1012
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1029
1029

Ozone (du)

463
472
473
476
483
481
482
480
489
496
505
496
495
489
475
469
461
455
451
443
440
431
422
419

Wednesday 18

New Moon 1%

07:03

18:55

14 OK
15 OK
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
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:57, Set: 19:04, Transit: 13:01. Moon - Rise: 07:03, Set: 18:55. Civil Dark: 19:34 - 06:27. Nautical Dark: 20:09 - 05:53. Astro Dark: 20:44 - 05:17

Total Clouds (% Sky Obscured)

28
24
47
52
73
96
99
96
95
99
100
99
100
100
100
98
99
92
94
97
100
100
100
100

Low Clouds (% Sky Obscured)

2
4
6
4
6
20
31
39
35
38
75
38
31
71
76
80
82
80
85
90
95
97
99
100

Medium Clouds (% Sky Obscured)

21
24
44
45
62
88
95
92
89
94
99
99
98
98
100
95
96
78
85
93
100
86
74
58

High Clouds (% Sky Obscured)

21
24
47
10
0
30
26
5
38
54
91
81
74
94
61
17
20
35
35
5
22
7
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
5
9
4
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
Snow
Snow
Snow
Snow

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
1
3
5
7
21
31
44
47
56
55
52
45

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-18
-17
-16
-15
-14
-13
-13
-12
-12
-12
-11
-10
-10
-9
-9
-9
-8
-9
-7
-6
-6
-5
-4
-5

Relative Humidity (%)

37
37
37
39
41
44
46
48
49
50
53
54
55
58
61
61
63
60
66
75
68
75
74
65

Pressure (mb)

1028
1027
1027
1027
1027
1027
1027
1027
1026
1026
1025
1024
1024
1023
1022
1021
1020
1019
1019
1019
1018
1018
1017
1017

Ozone (du)

419
423
415
410
408
406
403
400
394
392
398
403
399
398
396
397
398
400
404
407
408
405
404
406

Thursday 19

Waxing Crescent 0%

07:23

20:12

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
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:55, Set: 19:06, Transit: 13:01. Moon - Rise: 07:23, Set: 20:12. Civil Dark: 19:35 - 06:25. Nautical Dark: 20:10 - 05:51. Astro Dark: 20:45 - 05:15

Total Clouds (% Sky Obscured)

89
76
63
55
48
41
55
67
81
71
62
55
62
69
77
84
90
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

87
75
63
55
48
41
55
67
81
71
62
55
62
63
77
81
75
75
63
45
39
60
77
100

Medium Clouds (% Sky Obscured)

58
55
18
11
5
40
45
50
65
70
62
40
62
69
77
82
86
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
27
57
93
95
100
100
100
100
100

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

39
50
73
94
86
57
29
27
20
10
11
20
7
6
2
1
5
6
3
8
30
43
50
47

Precipitation Amount (mm)

0
0.1
0.5
0.9
0.6
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.2
0.1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

57
58
77
96
100
98
98
98
98
98
96
98
96
96
96
94
92
94
91
87
89
91
92
92

Pressure (mb)

1016
1015
1015
1015
1015
1016
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1016
1015
1014

Ozone (du)

405
407
407
406
407
409
409
409
410
411
411
410
407
406
404
403
403
402
403
405
404
405
407
407

Friday 20

Waxing Crescent 4%

07:46

21:32

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
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:53, Set: 19:07, Transit: 13:01. Moon - Rise: 07:46, Set: 21:32. Civil Dark: 19:37 - 06:23. Nautical Dark: 20:11 - 05:49. Astro Dark: 20:47 - 05:13

Total Clouds (% Sky Obscured)

100
99
99
100
100
100
100
99
99
100
100
100
82
69
54
46
42
38
57
57
71
86
81
76

Low Clouds (% Sky Obscured)

98
95
93
93
94
95
94
94
95
96
95
95
4
3
14
28
42
38
57
57
71
86
81
76

Medium Clouds (% Sky Obscured)

98
97
96
98
49
95
34
31
28
37
42
52
50
45
45
46
42
38
57
57
70
75
69
64

High Clouds (% Sky Obscured)

67
33
5
10
15
20
3
1
0
0
0
0
0
0
0
23
40
38
33
15
0
0
0
0

ISS Passover

Visibility (miles)

8
0
0
0
0
0
0
3
2
3
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

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

Precipitation Probability (%)

57
70
68
64
63
65
67
70
75
65
56
43
7
8
8
17
23
31
52
65
75
83
88
89

Precipitation Amount (mm)

0.2
0.3
0.3
0.2
0.2
0.2
0.2
0.2
0.4
0.2
0.2
0.1
0
0
0
0
0
0
0.1
0.2
0.3
0.5
0.6
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-5
-5
-4
-4
-4
-4
-5
-5
-5
-6
-9
-10
-10
-8
-7
-7
-7
-7
-7
-9
-9
-10
-10
-10

Dew Point (°C)

-4
-3
-2
-2
-2
-2
-2
-3
-3
-4
-7
-9
-10
-9
-9
-10
-11
-11
-12
-13
-14
-14
-15
-15

Relative Humidity (%)

84
92
96
96
96
96
98
96
96
91
73
69
64
63
62
60
58
55
53
50
48
45
42
40

Pressure (mb)

1013
1012
1011
1010
1009
1009
1008
1008
1008
1008
1009
1009
1010
1014
1014
1014
1014
1015
1015
1015
1015
1014
1014
1014

Ozone (du)

407
408
407
408
410
413
415
414
418
419
420
423
427
430
433
436
436
436
437
430
424
418
413
408

Saturday 21

Waxing Crescent 10%

08:14

22:54

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
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:51, Set: 19:08, Transit: 13:00. Moon - Rise: 08:14, Set: 22:54. Civil Dark: 19:38 - 06:22. Nautical Dark: 20:13 - 05:47. Astro Dark: 20:49 - 05:11

Total Clouds (% Sky Obscured)

75
84
93
94
95
95
94
94
93
86
81
80
95
85
90
91
89
91
85
71
72
79
90
93

Low Clouds (% Sky Obscured)

75
84
82
82
81
78
69
72
77
65
41
5
0
0
0
0
5
20
20
20
15
15
20
25

Medium Clouds (% Sky Obscured)

58
45
35
40
49
68
79
82
85
85
81
80
90
85
85
82
79
74
76
71
72
79
78
69

High Clouds (% Sky Obscured)

14
32
53
44
25
20
10
5
5
0
0
0
0
3
2
5
6
10
10
7
17
32
20
9

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
6
3
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

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

Precipitation Probability (%)

72
55
39
31
23
14
12
11
8
16
20
25
43
62
79
77
75
71
65
57
51
50
45
41

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-16
-15
-15
-15
-14
-13
-12
-12
-12
-12
-11
-11
-10
-8
-6
-5
-5
-3
-2
-2
-1
-1
-1
-1

Relative Humidity (%)

38
38
39
39
42
45
49
50
52
53
57
60
64
73
82
92
92
94
96
98
98
98
98
96

Pressure (mb)

1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1014
1014
1013
1013
1012
1011
1011
1010
1010
1010
1010
1009
1009
1009

Ozone (du)

403
400
397
395
391
387
384
383
383
382
383
384
385
383
381
378
374
370
366
364
362
361
360
360

Sunday 22

Waxing Crescent 18%

08:51

00:17

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

Sun - Rise: 06:49, Set: 19:10, Transit: 13:00. Moon - Rise: 08:51, Set: 00:17. Civil Dark: 19:39 - 06:20. Nautical Dark: 20:14 - 05:45. Astro Dark: 20:50 - 05:09

Total Clouds (% Sky Obscured)

97
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

25
30
40
50
70
65
80
90
100
100
100
100
99
99
98
98
98
99

Medium Clouds (% Sky Obscured)

47
26
5
26
50
70
79
89
100
99
99
98
99
99
100
85
69
54

High Clouds (% Sky Obscured)

17
22
25
25
40
30
30
35
30
14
5
0
0
0
0
1
1
2

ISS Passover

Visibility (miles)

0
3
6
9
6
3
0
0
0
0
0
0
0
3
6
9
9
9

Fog (%)

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

Precipitation Probability (%)

31
26
22
28
37
48
77
90
95
95
95
95
95
95
90
76
59
41

Precipitation Amount (mm)

0
0
0
0
0
0.2
0.4
0.6
1
1.1
1.4
1.8
1.5
1.1
0.5
0.4
0.2
0

Wind Speed/Direction (mph)

5
5
4
4
3
2
2
3
4
5
6
8
10
10
12
13
12
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
92
89
86
89
94
100
100
100
98
98
96
96
89
82
76
76
75

Pressure (mb)

1008
1008
1007
1007
1006
1006
1006
1005
1005
1005
1004
1004
1004
1004
1004
1003
1005
1006

Ozone (du)

359
364
369
373
378
383
388
387
387
386
385
385
385
386
387
389
392
395

Forecast for Le Vieux-Port, Montréal, Canada (45.50,-73.57)

Generated: 16/03/26 14:05:34. Forecast: 16/03/26 to 22/03/26. Timezone: UTC-4.00