Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 18

New Moon 1%

07:03

No Set

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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 06:57, Set: 19:06, Transit: 13:01. Moon - Rise: 07:03, Set: No Set. Civil Dark: 19:35 - 06:27. Nautical Dark: 20:09 - 05:53. Astro Dark: 20:44 - 05:17

Total Clouds (% Sky Obscured)

86
89
91
91
100
100
98
96
94
96
94
96
93
94
92
90
90
83
91
93
98
95
94
94

Low Clouds (% Sky Obscured)

40
21
5
44
38
10
68
89
78
81
80
81
82
82
83
84
79
79
87
90
93
92
84
86

Medium Clouds (% Sky Obscured)

86
89
91
91
95
100
92
93
89
92
88
89
86
88
83
80
79
67
54
55
70
55
56
8

High Clouds (% Sky Obscured)

1
1
2
12
68
58
30
34
24
22
25
1
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
7
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
Very Light Rain
Snow
Snow
Light Rain
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
3
6
6
6
6
4
8
8
11
17
33
48
61
63
65
52
35

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.4
0.4
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-10
-11
-11
-10
-9
-9
-9
-9
-9
-8
-9
-9
-9
-8
-7
-7
-5
-4
-3
-3
-1
-1
-2
-3

Dew Point (°C)

-13
-13
-13
-13
-11
-11
-11
-10
-10
-10
-10
-11
-11
-11
-10
-9
-9
-8
-5
0
2
2
1
1

Relative Humidity (%)

55
56
56
58
60
61
64
65
64
63
59
57
53
54
51
51
49
49
58
88
96
98
100
98

Pressure (mb)

1030
1029
1029
1028
1027
1027
1026
1025
1025
1024
1024
1023
1023
1023
1022
1021
1020
1020
1019
1018
1018
1018
1018
1018

Ozone (du)

388
388
393
393
396
400
401
401
403
405
406
410
412
412
414
414
413
414
416
418
419
420
418
416

Thursday 19

Waxing Crescent 4%

07:23

20:12

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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 06:55, Set: 19:07, Transit: 13:01. Moon - Rise: 07:23, Set: 20:12. Civil Dark: 19:37 - 06:25. Nautical Dark: 20:10 - 05:51. Astro Dark: 20:45 - 05:15

Total Clouds (% Sky Obscured)

83
74
93
96
80
98
99
100
100
79
100
100
100
100
100
100
100
100
100
100
100
98
100
100

Low Clouds (% Sky Obscured)

76
62
88
83
52
40
16
2
23
29
19
27
3
25
25
54
48
96
100
100
96
96
100
89

Medium Clouds (% Sky Obscured)

0
0
0
29
40
91
99
97
100
79
100
100
100
100
100
100
100
100
100
100
100
94
88
100

High Clouds (% Sky Obscured)

0
0
0
8
30
30
39
100
100
63
100
100
100
100
100
100
100
100
100
100
86
85
85
80

ISS Passover

Visibility (miles)

2
7
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
1
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
None

Precipitation Probability (%)

27
21
8
6
5
2
0
0
0
0
0
0
1
2
2
3
6
27
94
95
95
95
73
50

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.8
1
1
0.8
0.3
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

1
1
1
1
1
0
0
-1
-1
-1
-1
-2
-2
-2
-1
-1
0
1
2
1
1
1
1
1

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
94
91
91
91
92
87
81
78
75
74
74
71
67
63
61
61
61
65
70
84
96
96
96

Pressure (mb)

1018
1019
1019
1019
1019
1019
1019
1019
1019
1020
1020
1020
1019
1019
1019
1018
1017
1015
1014
1012
1011
1010
1010
1010

Ozone (du)

417
416
416
411
409
407
406
405
403
400
397
399
399
398
398
401
402
403
403
405
403
399
398
399

Friday 20

Waxing Crescent 10%

07:46

21:32

20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 OK
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

Sun - Rise: 06:53, Set: 19:08, Transit: 13:01. Moon - Rise: 07:46, Set: 21:32. Civil Dark: 19:38 - 06:23. Nautical Dark: 20:11 - 05:49. Astro Dark: 20:47 - 05:13

Total Clouds (% Sky Obscured)

93
90
84
72
75
53
63
79
42
78
78
79
87
91
95
87
84
100
100
100
100
97
94
91

Low Clouds (% Sky Obscured)

79
77
73
72
75
53
63
62
42
8
13
0
9
31
53
55
55
65
51
37
23
16
17
12

Medium Clouds (% Sky Obscured)

76
45
0
0
0
0
1
76
1
60
55
52
45
50
80
57
76
94
100
100
100
97
94
91

High Clouds (% Sky Obscured)

80
75
80
0
0
0
1
35
2
65
70
65
65
60
66
71
72
99
77
53
19
10
20
20

ISS Passover

Visibility (miles)

0
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
5
1
1
1
1
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)

6
7
8
9
9
9
8
8
8
7
7
6
6
8
8
7
5
3
2
4
4
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-3
-4
-4
-4
-2
-2
-3
-4
-4
-4
-6
-6
-6
-6
-6
-6
-3
-2
-3
-4
-3
-3
-4
-4

Dew Point (°C)

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

Relative Humidity (%)

96
91
86
83
81
83
83
84
84
86
84
82
81
73
68
64
61
58
59
60
61
62
66
71

Pressure (mb)

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

Ozone (du)

401
403
406
408
407
408
408
406
406
406
406
407
406
405
402
401
401
397
391
386
384
387
386
385

Saturday 21

Waxing Crescent 18%

08:14

22:54

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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 06:51, Set: 19:10, Transit: 13:00. Moon - Rise: 08:14, Set: 22:54. Civil Dark: 19:39 - 06:22. Nautical Dark: 20:13 - 05:47. Astro Dark: 20:49 - 05:11

Total Clouds (% Sky Obscured)

81
70
60
72
86
100
100
100
100
100
100
100
100
99
99
94
87
76
86
86
99
99
99
98

Low Clouds (% Sky Obscured)

19
30
45
49
74
83
89
94
99
98
98
97
96
95
92
91
23
51
65
59
63
70
54
68

Medium Clouds (% Sky Obscured)

81
70
60
72
86
100
100
100
100
89
99
100
99
98
97
90
81
56
39
59
78
82
83
90

High Clouds (% Sky Obscured)

15
10
5
37
68
100
67
33
5
5
5
10
15
20
20
20
0
2
34
61
92
72
53
34

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
0
0
0
0
0
0
0
0
0
8
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

4
8
8
29
40
42
63
76
76
63
56
66
54
41
28
17
11
4
2
1
0
4
3
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

6
6
6
7
8
8
7
7
7
7
7
7
6
6
6
6
7
8
9
9
9
9
8
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
84
89
91
89
89
86
96
98
96
96
96
96
96
96
96
74
51
46
44
42
43
45
50

Pressure (mb)

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

Ozone (du)

384
383
380
379
379
377
373
373
368
362
357
354
351
349
349
350
343
342
342
348
344
340
340
340

Sunday 22

Waxing Crescent 29%

08:51

00:17

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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 06:49, Set: 19:11, Transit: 13:00. Moon - Rise: 08:51, Set: 00:17. Civil Dark: 19:41 - 06:20. Nautical Dark: 20:14 - 05:45. Astro Dark: 20:50 - 05:09

Total Clouds (% Sky Obscured)

91
85
84
85
89
91
87
87
92
93
92
89
93
96
100
100
100
100
100
100
89
84
78
57

Low Clouds (% Sky Obscured)

63
53
38
35
29
27
19
12
6
4
8
11
11
13
12
14
14
14
8
7
7
12
14
5

Medium Clouds (% Sky Obscured)

77
66
60
59
61
60
66
72
73
63
56
45
25
15
15
20
45
60
70
70
65
60
55
55

High Clouds (% Sky Obscured)

23
11
10
20
35
48
41
35
8
5
2
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 (%)

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
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)

8
9
9
9
9
9
9
9
10
9
9
9
10
9
8
8
8
8
8
8
8
8
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-7
-8
-8
-9
-10
-10
-11
-12
-13
-14
-14
-15
-15
-16
-16
-17
-17
-16
-16
-15
-14
-13
-12
-12

Relative Humidity (%)

53
53
55
55
53
53
50
50
48
46
46
46
45
41
38
35
32
30
28
30
31
33
37
40

Pressure (mb)

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

Ozone (du)

337
335
334
332
334
337
335
335
339
342
346
349
352
353
354
355
357
360
363
367
371
375
379
384

Monday 23

Waxing Crescent 40%

09:40

01:36

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

Sun - Rise: 06:47, Set: 19:12, Transit: 13:00. Moon - Rise: 09:40, Set: 01:36. Civil Dark: 19:42 - 06:18. Nautical Dark: 20:15 - 05:43. Astro Dark: 20:52 - 05:06

Total Clouds (% Sky Obscured)

47
41
45
52
61
73
50
29
10
7
5
1
1
1
0
0
0
0
16
34
53
66
78
82

Low Clouds (% Sky Obscured)

3
2
0
20
41
58
39
19
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

47
41
45
45
50
60
50
29
10
7
5
1
1
0
0
0
0
0
16
34
51
66
78
82

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
24
32
42
56
70

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 (%)

0
0
0
0
0
0
1
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)

6
6
7
7
7
6
6
6
6
6
6
6
6
5
4
4
4
4
4
3
4
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-5
-6
-6
-6
-7
-6
-6
-9
-8
-8
-8
-8
-8
-6
-6
-5
-5
-5
-5
-1
-1
-2
-2
-2

Dew Point (°C)

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

Relative Humidity (%)

45
46
49
51
51
52
51
50
49
49
48
47
46
43
38
35
31
30
28
28
29
29
35
41

Pressure (mb)

1023
1023
1023
1023
1024
1024
1024
1025
1025
1026
1027
1027
1028
1029
1029
1029
1029
1029
1029
1028
1028
1027
1027
1027

Ozone (du)

388
394
399
404
406
407
408
409
410
411
415
418
422
419
417
414
416
417
419
426
434
441
448
456

Tuesday 24

Waxing Crescent 52%

10:41

02:45

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: 06:45, Set: 19:14, Transit: 12:59. Moon - Rise: 10:41, Set: 02:45. Civil Dark: 19:43 - 06:16. Nautical Dark: 20:17 - 05:41. Astro Dark: 20:53 - 05:04

Total Clouds (% Sky Obscured)

80
77
95
97
99
99
100
100
100
100
100
100
100
100
100
83
63
44

Low Clouds (% Sky Obscured)

0
0
0
0
0
10
16
22
25
41
62
73
74
68
63
48
36
18

Medium Clouds (% Sky Obscured)

80
77
95
97
99
98
89
82
79
75
71
69
74
79
80
55
32
4

High Clouds (% Sky Obscured)

70
60
60
57
39
21
17
9
0
5
5
5
5
5
5
4
3
2

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
7
5
3
2
1
1
4
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
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
1
1
13
13
10
18
24
30
32
33
32
26
20
5

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

5
6
7
9
9
10
10
10
9
9
10
9
10
10
11
12
13
13

Chance of Frost

Temperature (°C)

1
0
-0
-1
-1
-2
-2
-2
-2
-2
-1
-1
-1
-1
-1
-2
-1
-1

Feels Like (°C)

-2
-5
-5
-5
-5
-5
-6
-7
-7
-7
-7
-7
-7
-6
-6
-6
-6
-6

Dew Point (°C)

-10
-9
-9
-9
-8
-9
-8
-7
-5
-4
-4
-4
-3
-6
-9
-12
-13
-15

Relative Humidity (%)

47
49
52
55
57
58
61
67
75
83
83
84
84
70
57
46
40
35

Pressure (mb)

1026
1026
1026
1026
1025
1024
1023
1023
1023
1022
1022
1022
1022
1023
1023
1023
1023
1023

Ozone (du)

464
471
479
486
493
499
506
506
506
507
506
506
505
506
507
509
505
501

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

Generated: 18/03/26 20:31:49. Forecast: 18/03/26 to 24/03/26. Timezone: UTC-4.00