Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 18

New Moon 0%

08:14

16:25

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

Sun - Rise: 07:27, Set: 16:42, Transit: 12:04. Moon - Rise: 08:14, Set: 16:25. Civil Dark: 17:14 - 06:54. Nautical Dark: 17:51 - 06:18. Astro Dark: 18:26 - 05:42

Total Clouds (% Sky Obscured)

27
31
50
49
49
74
100
100
83
39
35
35
20
31
40
60
96
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

27
31
41
49
49
58
8
0
1
1
1
2
3
16
34
57
63
63
67
78
69
68
76
82

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
80
80
100
100
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
3
38
100
100
83
34
30
25
0
0
0
1
83
100
100
100
84
30
25
30

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
6
4
3
3
3
3
3
2
2
2
2
1
3

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
14
15
13
56
32
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
1
1
0
1
0
0
0
0
0
0
0
3
0
0
0
0
1
6
3
5
2
4
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)

13
15
15
11
10
9
6
2
2
2
1
2
2
2
2
2
3
3
2
2
2
1
2
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
76
78
79
79
79
84
90
92
92
94
92
92
92
92
92
90
92
92
92
92
92
92
90

Pressure (mb)

1016
1017
1016
1015
1015
1015
1015
1014
1014
1014
1014
1013
1013
1012
1011
1010
1010
1010
1009
1009
1009
1009
1009
1008

Ozone (du)

420
424
428
431
420
415
395
383
391
383
375
375
377
378
377
370
370
373
375
381
387
388
388
394

Monday 19

Waxing Crescent 1%

08:38

17:36

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 OK
03 OK
04 OK
05 Good
06 Good
07 OK
08 OK
09 Bad

Sun - Rise: 07:26, Set: 16:43, Transit: 12:05. Moon - Rise: 08:38, Set: 17:36. Civil Dark: 17:16 - 06:53. Nautical Dark: 17:52 - 06:17. Astro Dark: 18:27 - 05:42

Total Clouds (% Sky Obscured)

99
100
96
100
100
99
98
100
100
100
100
92
95
79
65
51
36
16
32
7
3
7
15
29

Low Clouds (% Sky Obscured)

86
77
77
84
85
83
78
100
98
92
81
74
91
41
40
28
18
16
32
7
1
1
4
6

Medium Clouds (% Sky Obscured)

90
100
83
100
100
96
94
92
100
100
100
71
89
24
33
0
0
0
0
0
0
1
1
7

High Clouds (% Sky Obscured)

30
25
24
2
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
2
0
0
0
0
0
3
3
7
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
Snow
None
None
None
None
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

15
32
26
33
34
39
38
40
40
35
35
26
5
8
10
2
2
2
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

4
5
5
6
7
8
8
10
10
10
10
13
16
16
18
20
19
19
18
17
15
13
11
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-12
-11
-10
-9
-8
-9
-10
-11
-11
-11
-12
-12
-13
-15
-16
-17
-18
-19
-19
-19
-20
-21
-22
-22

Dew Point (°C)

-10
-9
-8
-6
-5
-6
-6
-7
-8
-7
-8
-9
-11
-11
-12
-13
-14
-15
-17
-18
-19
-21
-22
-22

Relative Humidity (%)

88
85
87
89
92
92
90
85
82
87
82
77
70
74
74
68
71
70
69
69
69
70
70
72

Pressure (mb)

1008
1008
1007
1006
1006
1006
1005
1005
1005
1006
1006
1006
1007
1007
1008
1009
1011
1012
1013
1014
1016
1017
1018
1019

Ozone (du)

398
402
410
411
413
419
427
440
459
468
472
469
467
468
460
460
466
475
478
480
480
487
492
493

Tuesday 20

Waxing Crescent 4%

08:58

18:49

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

Sun - Rise: 07:25, Set: 16:44, Transit: 12:05. Moon - Rise: 08:58, Set: 18:49. Civil Dark: 17:17 - 06:53. Nautical Dark: 17:53 - 06:16. Astro Dark: 18:28 - 05:41

Total Clouds (% Sky Obscured)

76
73
60
41
52
72
6
40
96
90
91
86
91
100
100
96
91
90
92
96
97
94
92
91

Low Clouds (% Sky Obscured)

12
14
15
15
15
10
2
11
80
69
91
70
91
93
77
69
63
81
88
92
92
89
80
85

Medium Clouds (% Sky Obscured)

65
71
56
41
52
72
3
21
69
61
52
51
48
56
50
39
43
57
28
26
12
9
9
31

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
1
2
27
13
30
25

ISS Passover

Visibility (miles)

9
9
9
8
9
9
9
9
9
1
8
9
9
9
9
9
9
6
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
1
4
4
4
4
1
1
0
1
2
5
1
3
9
7
1
2
16
15
12
10
13
15

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)

10
11
11
12
11
11
10
7
6
7
6
3
4
5
5
4
3
4
5
5
7
6
6
6

Chance of Frost

Temperature (°C)

-18
-18
-17
-17
-16
-16
-16
-16
-17
-17
-16
-17
-17
-18
-17
-17
-17
-16
-16
-16
-15
-15
-14
-13

Feels Like (°C)

-23
-24
-23
-23
-22
-21
-22
-20
-21
-21
-21
-20
-21
-22
-22
-21
-20
-20
-20
-19
-20
-20
-19
-18

Dew Point (°C)

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

Relative Humidity (%)

66
65
66
67
71
75
75
77
80
80
81
83
86
84
84
81
84
86
86
85
77
77
81
81

Pressure (mb)

1020
1020
1020
1020
1020
1021
1022
1022
1023
1024
1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026

Ozone (du)

496
499
497
501
500
497
500
495
484
465
457
463
467
467
461
457
455
453
448
442
432
425
421
416

Wednesday 21

Waxing Crescent 9%

09:16

20:01

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
09 Bad

Sun - Rise: 07:24, Set: 16:46, Transit: 12:05. Moon - Rise: 09:16, Set: 20:01. Civil Dark: 17:18 - 06:52. Nautical Dark: 17:54 - 06:16. Astro Dark: 18:29 - 05:41

Total Clouds (% Sky Obscured)

88
86
82
87
92
98
99
99
100
100
100
100
100
99
100
100
100
100
98
96
93
95
97
100

Low Clouds (% Sky Obscured)

84
79
76
76
79
83
71
77
72
82
90
96
98
96
99
99
98
98
94
96
93
95
91
89

Medium Clouds (% Sky Obscured)

33
41
39
60
74
91
95
98
100
100
98
50
34
33
84
100
100
100
97
93
87
89
94
100

High Clouds (% Sky Obscured)

25
20
20
15
2
4
6
5
5
0
0
0
0
1
7
15
20
20
20
15
10
5
0
0

ISS Passover

Visibility (miles)

9
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
6
0
9
8
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
Snow
Snow
Snow
Snow
None
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
Snow
None
None
Snow
Snow
Snow

Precipitation Probability (%)

21
34
47
46
43
30
33
52
56
61
60
50
62
53
64
63
64
47
54
42
37
75
95
83

Precipitation Amount (mm)

0
0.1
0.3
0.2
0.1
0
0
0.2
0.2
0.2
0.3
0.1
0.2
0.2
0.4
0.4
0.3
0
0.1
0
0
0.4
1
0.6

Wind Speed/Direction (mph)

7
8
8
8
8
8
8
9
10
10
10
10
11
12
11
12
12
12
13
13
13
13
12
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
88
90
90
90
88
87
85
90
90
92
92
88
90
90
94
92
89
89
92
89
87
92
96

Pressure (mb)

1026
1026
1025
1024
1023
1023
1022
1021
1021
1020
1019
1018
1017
1016
1015
1014
1013
1012
1010
1010
1008
1008
1008
1008

Ozone (du)

412
411
410
416
418
414
408
405
420
430
420
416
415
411
412
416
421
422
419
421
421
420
417
416

Thursday 22

Waxing Crescent 16%

09:34

21:13

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
09 Bad

Sun - Rise: 07:23, Set: 16:47, Transit: 12:06. Moon - Rise: 09:34, Set: 21:13. Civil Dark: 17:19 - 06:51. Nautical Dark: 17:56 - 06:15. Astro Dark: 18:31 - 05:40

Total Clouds (% Sky Obscured)

86
74
61
60
64
73
77
86
91
86
84
90
90
90
86
90
75
75
79
78
80
63
57
38

Low Clouds (% Sky Obscured)

80
65
44
37
34
37
47
65
75
63
53
60
70
65
65
5
5
35
44
42
51
39
22
12

Medium Clouds (% Sky Obscured)

73
47
20
20
25
35
45
0
0
0
0
0
1
2
4
0
1
2
7
12
16
20
27
30

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)

0
2
2
2
9
1
9
8
0
9
9
9
9
9
9
9
9
9
9
6
3
0
1
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
None
None
None
None
None
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

70
52
34
23
22
9
17
43
34
21
18
5
6
5
2
6
6
3
9
8
11
20
22
18

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-3
-2
-3
-3
-3
-3
-4
-5
-5
-6
-7
-8
-9
-10
-11
-12
-12
-13
-14
-14
-15
-15
-15
-14

Feels Like (°C)

-7
-8
-8
-8
-8
-8
-9
-9
-10
-10
-12
-13
-14
-15
-16
-16
-17
-17
-18
-18
-19
-19
-20
-20

Dew Point (°C)

-3
-4
-4
-4
-4
-5
-5
-6
-6
-8
-9
-10
-11
-12
-13
-14
-15
-16
-16
-16
-17
-17
-17
-16

Relative Humidity (%)

96
91
89
89
89
91
89
90
94
84
85
85
85
85
83
83
81
81
79
83
82
84
84
84

Pressure (mb)

1008
1008
1007
1007
1007
1008
1008
1008
1009
1010
1010
1011
1011
1012
1012
1013
1014
1014
1015
1015
1016
1016
1017
1018

Ozone (du)

421
421
423
420
423
427
432
435
435
430
430
434
435
438
440
435
439
444
448
445
442
439
425
410

Friday 23

Waxing Crescent 25%

09:52

22:26

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 OK
01 OK
02 OK
03 OK
04 OK
05 OK
06 OK
07 Bad
08 Bad
09 Bad

Sun - Rise: 07:22, Set: 16:49, Transit: 12:06. Moon - Rise: 09:52, Set: 22:26. Civil Dark: 17:21 - 06:50. Nautical Dark: 17:57 - 06:14. Astro Dark: 18:32 - 05:39

Total Clouds (% Sky Obscured)

35
47
59
58
51
51
57
65
70
65
66
59
47
37
22
7
15
9
10
16
17
27
51
53

Low Clouds (% Sky Obscured)

23
34
46
36
27
17
11
6
5
33
42
42
47
37
22
7
15
9
10
16
17
27
51
53

Medium Clouds (% Sky Obscured)

25
30
35
27
27
29
22
14
2
1
1
0
1
1
1
1
1
0
0
0
0
8
23
20

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
27
51
53

ISS Passover

Visibility (miles)

4
6
7
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 (%)

19
16
4
11
11
6
14
14
11
10
6
1
5
5
1
5
6
6
7
7
4
5
5
2

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)

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

Chance of Frost

Temperature (°C)

-14
-14
-13
-13
-13
-13
-14
-14
-15
-15
-16
-17
-18
-20
-21
-23
-24
-25
-26
-26
-27
-27
-27
-26

Feels Like (°C)

-19
-19
-19
-18
-18
-19
-19
-19
-19
-18
-21
-22
-22
-22
-22
-23
-29
-30
-30
-30
-30
-30
-32
-31

Dew Point (°C)

-16
-16
-16
-16
-16
-17
-17
-18
-20
-21
-22
-22
-23
-25
-27
-29
-30
-31
-31
-31
-32
-32
-31
-31

Relative Humidity (%)

86
83
79
78
78
76
74
70
66
63
63
64
64
62
57
54
56
57
59
60
62
62
62
62

Pressure (mb)

1018
1019
1019
1019
1020
1020
1021
1022
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1035
1036

Ozone (du)

396
391
387
382
392
401
411
416
421
426
422
419
415
409
402
396
390
385
380
378
376
374
360
347

Saturday 24

Waxing Crescent 36%

No Rise

23:42

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: 07:21, Set: 16:50, Transit: 12:06. Moon - Rise: No Rise, Set: 23:42. Civil Dark: 17:22 - 06:49. Nautical Dark: 17:58 - 06:13. Astro Dark: 18:33 - 05:38

Total Clouds (% Sky Obscured)

47
34
35
50
67
86
74
60
47
62
74
83
84
79
75
78
83
90
81
70
55

Low Clouds (% Sky Obscured)

47
34
35
50
67
76
52
29
6
7
8
6
18
27
33
37
32
30
30
35
35

Medium Clouds (% Sky Obscured)

5
5
5
15
24
34
35
35
34
54
72
83
84
79
75
78
83
90
81
70
55

High Clouds (% Sky Obscured)

25
12
4
5
6
7
7
6
7
13
17
24
48
74
75
78
83
90
81
70
55

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Probability (%)

5
5
4
7
7
6
6
5
0
1
1
0
1
1
0
0
0
0
4
10
15

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-31
-31
-30
-30
-27
-27
-27
-27
-27
-27
-29
-28
-28
-28
-29
-29
-27
-27
-27
-27
-27

Dew Point (°C)

-31
-29
-28
-27
-27
-26
-26
-27
-27
-28
-27
-27
-27
-27
-27
-27
-27
-27
-27
-26
-26

Relative Humidity (%)

60
60
61
61
63
63
66
67
68
70
71
71
71
70
68
67
67
69
70
72
74

Pressure (mb)

1037
1037
1036
1036
1036
1036
1036
1036
1036
1036
1035
1035
1034
1034
1033
1033
1032
1031
1030
1030
1029

Ozone (du)

333
331
329
327
325
324
322
321
321
320
320
320
320
320
321
321
329
336
343
345
348

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

Generated: 18/01/26 10:13:39. Forecast: 18/01/26 to 24/01/26. Timezone: UTC-5.00