Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 21

Waxing Crescent 22%

08:42

22:49

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

Sun - Rise: 06:42, Set: 17:30, Transit: 12:07. Moon - Rise: 08:42, Set: 22:49. Civil Dark: 18:00 - 06:13. Nautical Dark: 18:35 - 05:38. Astro Dark: 19:09 - 05:04

Total Clouds (% Sky Obscured)

82
63
48
38
12
18
16
2
2
2
2
2
2
4
5
3
3
18
46
60
68
85
90
93

Low Clouds (% Sky Obscured)

56
60
39
38
12
3
3
0
0
1
0
0
0
0
1
1
1
18
46
57
64
42
42
41

Medium Clouds (% Sky Obscured)

48
22
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
20
53
69
75
84

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
3
3
3
8

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
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)

16
17
16
16
11
10
10
9
8
6
6
5
6
6
7
7
7
6
6
6
4
4
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
80
78
78
79
80
84
85
85
87
87
88
88
88
88
88
88
86
86
86
86
85
86
88

Pressure (mb)

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

Ozone (du)

411
411
411
410
410
410
414
414
413
413
414
414
414
417
420
422
424
424
423
421
417
415
413
414

Sunday 22

Waxing Crescent 32%

No Rise

00:10

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
06 Bad
07 Bad
08 Bad

Sun - Rise: 06:41, Set: 17:32, Transit: 12:07. Moon - Rise: No Rise, Set: 00:10. Civil Dark: 18:02 - 06:11. Nautical Dark: 18:36 - 05:37. Astro Dark: 19:10 - 05:02

Total Clouds (% Sky Obscured)

92
86
89
98
98
98
98
99
99
99
97
95
93
93
93
88
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

34
38
21
34
41
47
66
73
76
52
17
17
36
41
25
30
25
15
2
3
2
4
7
13

Medium Clouds (% Sky Obscured)

83
66
74
96
96
94
88
97
97
99
96
94
88
88
86
88
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
11
2
30
55
79
72
100
100
100
100
100
100
100
100

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
0
0
0
1
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)

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

Chance of Frost

Temperature (°C)

-10
-8
-6
-4
-2
-1
-0
0
0
0
-0
-1
-2
-3
-3
-4
-4
-4
-5
-5
-5
-6
-6
-6

Feels Like (°C)

-14
-12
-9
-7
-6
-5
-4
-3
-4
-4
-5
-6
-6
-7
-8
-9
-9
-9
-10
-10
-11
-12
-12
-12

Dew Point (°C)

-11
-10
-7
-5
-4
-3
-2
-1
-1
-1
-1
-2
-3
-4
-4
-5
-5
-6
-6
-6
-7
-7
-8
-8

Relative Humidity (%)

88
87
89
89
87
86
87
91
92
92
94
96
94
94
92
91
89
89
87
89
89
89
90
89

Pressure (mb)

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

Ozone (du)

416
416
413
412
410
407
407
407
409
410
411
414
413
409
409
404
402
403
405
406
408
410
411
413

Monday 23

Waxing Crescent 43%

09:12

01:30

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
06 OK
07 Bad
08 Bad

Sun - Rise: 06:39, Set: 17:33, Transit: 12:07. Moon - Rise: 09:12, Set: 01:30. Civil Dark: 18:03 - 06:09. Nautical Dark: 18:37 - 05:35. Astro Dark: 19:12 - 05:01

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
95
99
84
85
100
100
100
99
83
28
55
71

Low Clouds (% Sky Obscured)

14
20
14
14
11
1
3
5
10
10
10
10
5
5
1
0
39
47
27
2
16
23
43
58

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
70
77
84
85
100
100
98
54
1
5
8
11

High Clouds (% Sky Obscured)

100
100
100
100
91
76
29
24
9
73
96
83
87
93
48
42
81
91
100
98
67
3
2
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
0
0
0
3
9
9
9
9
9
9
9
9
9
9
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
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
2
3
0
14
20
27
8
15
3
2
1
1
2
2
2
2
2
5
21

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
14
15
15
16
16
15
11
7
4
3
3
4
8
7
6
6
8
8
9
9
10
11
12

Chance of Frost

Temperature (°C)

-6
-5
-4
-2
-2
-1
-1
-1
-1
-2
-3
-3
-3
-3
-4
-5
-5
-6
-6
-7
-8
-9
-11
-11

Feels Like (°C)

-12
-11
-10
-9
-8
-8
-8
-6
-5
-5
-6
-6
-7
-8
-8
-9
-10
-11
-12
-12
-14
-14
-16
-17

Dew Point (°C)

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

Relative Humidity (%)

89
89
87
86
84
83
84
87
89
94
96
94
92
82
85
87
87
87
82
83
83
83
81
83

Pressure (mb)

1012
1012
1011
1010
1009
1008
1008
1007
1007
1006
1006
1006
1006
1006
1005
1005
1005
1005
1005
1006
1006
1007
1008
1009

Ozone (du)

418
418
419
417
413
411
409
410
419
422
421
417
422
425
426
423
424
420
416
416
420
426
431
436

Tuesday 24

First Quarter 55%

09:52

02:46

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

Sun - Rise: 06:37, Set: 17:35, Transit: 12:07. Moon - Rise: 09:52, Set: 02:46. Civil Dark: 18:04 - 06:08. Nautical Dark: 18:39 - 05:33. Astro Dark: 19:13 - 04:59

Total Clouds (% Sky Obscured)

87
80
74
65
48
30
15
10
10
9
15
20
35
52
43
43
38
59
98
99
99
100
100
100

Low Clouds (% Sky Obscured)

73
71
67
65
48
30
15
10
10
9
15
4
26
52
43
39
13
17
57
56
51
84
85
88

Medium Clouds (% Sky Obscured)

12
8
4
0
0
2
15
10
3
0
15
20
35
52
5
2
6
15
29
92
97
100
99
98

High Clouds (% Sky Obscured)

0
0
0
0
1
0
0
3
5
0
0
0
4
10
20
28
38
54
79
65
49
30
35
41

ISS Passover

Visibility (miles)

0
0
0
1
1
1
1
5
4
1
3
9
9
9
9
9
9
9
3
5
9
9
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
None
None
None
None
Snow
Snow

Precipitation Probability (%)

22
14
28
14
11
23
4
4
2
0
0
0
0
0
0
0
0
0
0
0
1
8
46
63

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
0.1
0.3

Wind Speed/Direction (mph)

13
13
14
15
15
15
15
15
14
13
12
10
8
7
6
5
4
4
3
4
5
7
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
83
83
81
81
81
83
81
80
81
79
79
81
81
83
82
81
81
81
82
83
82
84
86

Pressure (mb)

1009
1009
1010
1010
1010
1010
1010
1010
1011
1012
1012
1012
1012
1013
1013
1013
1012
1012
1012
1011
1010
1009
1007
1006

Ozone (du)

441
440
436
433
432
432
434
434
438
441
441
444
446
444
439
435
434
437
444
453
456
457
455
458

Wednesday 25

Waxing Gibbous 67%

10:44

03:50

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
06 Bad
07 Bad
08 Bad

Sun - Rise: 06:36, Set: 17:36, Transit: 12:07. Moon - Rise: 10:44, Set: 03:50. Civil Dark: 18:06 - 06:06. Nautical Dark: 18:40 - 05:32. Astro Dark: 19:14 - 04:57

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99
94
91
91
90
88
81
81

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
98
96
95
97
99
100
99
97
96
89
78
77
76
71
69
71
73

Medium Clouds (% Sky Obscured)

97
98
99
100
100
100
100
100
100
100
88
80
70
63
61
47
42
49
51
47
49
45
30
25

High Clouds (% Sky Obscured)

51
67
84
100
100
100
90
66
37
20
47
73
100
73
47
23
16
22
28
27
35
38
28
17

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

71
79
78
78
78
75
73
73
70
75
76
60
42
33
29
23
28
26
25
25
24
23
17
12

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

10
11
11
12
13
13
13
13
12
11
10
10
10
10
9
8
8
13
12
11
10
9
8
9

Chance of Frost

Temperature (°C)

-13
-12
-10
-9
-7
-6
-6
-5
-5
-5
-5
-4
-4
-4
-4
-4
-4
-5
-5
-5
-5
-6
-7
-7

Feels Like (°C)

-18
-17
-15
-14
-12
-11
-11
-11
-11
-10
-10
-10
-9
-8
-8
-8
-8
-9
-8
-8
-9
-9
-11
-11

Dew Point (°C)

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

Relative Humidity (%)

86
88
88
88
90
90
92
92
90
90
90
90
92
91
91
92
92
92
92
92
90
92
90
89

Pressure (mb)

1005
1003
1002
1001
999
998
997
997
997
997
998
998
999
999
1000
1001
1001
1002
1003
1005
1006
1007
1009
1010

Ozone (du)

459
462
463
467
471
474
474
473
472
472
472
468
466
467
469
469
471
475
478
482
484
486
488
483

Thursday 26

Waxing Gibbous 78%

11:49

04:41

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
06 Bad
07 Bad
08 Bad

Sun - Rise: 06:34, Set: 17:37, Transit: 12:06. Moon - Rise: 11:49, Set: 04:41. Civil Dark: 18:07 - 06:04. Nautical Dark: 18:41 - 05:30. Astro Dark: 19:16 - 04:55

Total Clouds (% Sky Obscured)

83
82
79
77
76
76
79
71
63
54
66
82
93
92
93
95
98
95
96
95
91
90
88
88

Low Clouds (% Sky Obscured)

77
77
77
77
72
67
62
50
37
23
30
38
49
57
69
81
69
55
42
38
37
44
44
43

Medium Clouds (% Sky Obscured)

21
15
7
0
0
0
0
0
1
1
29
57
85
84
88
86
88
84
85
85
85
80
83
88

High Clouds (% Sky Obscured)

2
1
1
0
0
0
0
9
10
12
5
2
2
0
0
0
10
23
33
28
19
15
22
24

ISS Passover

Visibility (miles)

6
9
9
9
9
9
9
9
9
9
9
7
5
3
3
3
3
5
7
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
9
10
8
8
7
2
2
2
1
3
2
0
0
0
0
0
0
0
1
2
2
9
12

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)

9
9
9
9
10
9
9
10
8
5
4
3
3
3
3
2
3
3
3
3
3
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-12
-12
-11
-11
-11
-7
-7
-7
-7
-5
-4
-13
-14
-14
-15
-15
-16
-17
-17
-17
-17
-16
-16
-15

Dew Point (°C)

-8
-8
-8
-7
-7
-7
-6
-6
-7
-9
-11
-11
-12
-13
-14
-14
-15
-14
-13
-12
-12
-12
-12
-11

Relative Humidity (%)

85
80
82
81
79
79
81
84
84
85
87
88
88
88
88
88
86
88
90
90
88
88
88
88

Pressure (mb)

1011
1013
1013
1014
1014
1015
1015
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1016
1016
1015
1015
1015
1015
1015

Ozone (du)

477
472
466
461
455
450
445
440
438
435
433
434
435
436
433
430
427
428
428
429
429
430
431
433

Friday 27

Waxing Gibbous 87%

13:05

05:19

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
06 Bad

Sun - Rise: 06:32, Set: 17:39, Transit: 12:06. Moon - Rise: 13:05, Set: 05:19. Civil Dark: 18:09 - 06:02. Nautical Dark: 18:43 - 05:28. Astro Dark: 19:17 - 04:54

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
89
79
69
60
51
42
56
67
76
71
67
64
67
68
66

Low Clouds (% Sky Obscured)

39
31
27
25
25
30
40
56
68
67
55
44
31
39
43
44
46
42
44
36
32
25

Medium Clouds (% Sky Obscured)

100
100
100
100
99
98
97
67
39
10
6
7
8
7
5
4
4
4
6
23
41
59

High Clouds (% Sky Obscured)

43
62
55
40
27
14
0
0
0
0
0
0
0
0
0
0
1
3
4
19
34
49

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
8
7
5
7
8
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 (%)

8
22
18
7
8
5
3
6
7
2
6
6
1
4
5
1
6
8
3
8
6
3

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-15
-15
-14
-14
-13
-8
-8
-7
-7
-6
-5
-9
-10
-10
-10
-10
-10
-12
-12
-12
-12
-11

Dew Point (°C)

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

Relative Humidity (%)

87
87
85
84
82
84
84
84
85
87
90
90
90
90
90
88
88
88
89
89
89
87

Pressure (mb)

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

Ozone (du)

436
438
438
439
439
441
443
445
444
443
443
441
439
438
433
429
424
420
415
411
407
404

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

Generated: 21/02/26 09:18:56. Forecast: 21/02/26 to 27/02/26. Timezone: UTC-5.00