Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 1

Full Moon 100%

16:49

07:46

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

Sun - Rise: 07:11, Set: 17:03, Transit: 12:08. Moon - Rise: 16:49, Set: 07:46. Civil Dark: 17:34 - 06:40. Nautical Dark: 18:09 - 06:05. Astro Dark: 18:43 - 05:31

Total Clouds (% Sky Obscured)

21
11
9
5
4
17
19
21
21
19
20
20
20
20
37
41
42
15
18
19
3
3
2
4

Low Clouds (% Sky Obscured)

1
2
3
3
2
8
10
11
12
12
11
12
12
12
23
24
24
9
13
12
1
1
1
2

Medium 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

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
8
8
8
8
8
8
8
8
7
5
4
4
9
8
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
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)

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

Chance of Frost

Temperature (°C)

-12
-14
-16
-13
-13
-13
-13
-14
-14
-14
-13
-13
-15
-15
-15
-16
-15
-12
-10
-8
-7
-7
-6
-6

Feels Like (°C)

-16
-17
-19
-16
-16
-16
-16
-17
-17
-17
-17
-17
-17
-17
-18
-18
-18
-15
-12
-11
-10
-9
-9
-9

Dew Point (°C)

-15
-17
-18
-16
-16
-15
-15
-16
-16
-16
-16
-16
-17
-17
-18
-18
-17
-15
-13
-12
-11
-10
-10
-9

Relative Humidity (%)

78
79
81
79
79
83
81
84
84
84
81
83
84
84
82
82
82
81
75
75
76
74
74
76

Pressure (mb)

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

Ozone (du)

440
441
440
440
439
438
436
436
438
440
441
441
441
443
443
434
428
427
430
432
434
434
437
437

Monday 2

Waning Gibbous 98%

18:08

08:08

16 Good
17 Good
18 Good
19 Good
20 OK
21 OK
22 OK
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

Sun - Rise: 07:10, Set: 17:04, Transit: 12:08. Moon - Rise: 18:08, Set: 08:08. Civil Dark: 17:35 - 06:39. Nautical Dark: 18:10 - 06:04. Astro Dark: 18:44 - 05:30

Total Clouds (% Sky Obscured)

4
3
3
6
10
11
25
45
54
92
100
98
100
97
87
92
91
97
97
90
80
87
84
94

Low Clouds (% Sky Obscured)

1
1
1
2
2
3
3
13
5
5
15
4
3
18
34
51
64
69
68
69
80
87
84
90

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
3
76
96
100
91
64
74
73
78
82
37
18
34
28
12

High Clouds (% Sky Obscured)

0
0
0
3
4
3
18
28
49
91
100
54
30
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
8
8
7
5
2

Fog (%)

0
0
0
0
0
0
0
0
0
0
2
5
9
20
28
19
11
1
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
0
0
0
0
0
1
0
1
3
5
7
17
20
21
22

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-9
-11
-13
-13
-14
-14
-14
-14
-15
-15
-16
-16
-15
-15
-16
-15
-16
-14
-12
-11
-9
-8
-8
-8

Dew Point (°C)

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

Relative Humidity (%)

80
82
85
85
86
86
86
86
85
86
86
85
85
86
86
85
86
83
83
82
82
82
84
86

Pressure (mb)

1017
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1020
1020
1020
1020
1019
1019
1018
1018
1018

Ozone (du)

430
432
434
420
413
420
409
411
409
409
388
386
387
380
382
387
399
403
400
396
384
394
405
395

Tuesday 3

Waning Gibbous 93%

19:23

08:27

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

Sun - Rise: 07:09, Set: 17:05, Transit: 12:08. Moon - Rise: 19:23, Set: 08:27. Civil Dark: 17:36 - 06:38. Nautical Dark: 18:11 - 06:03. Astro Dark: 18:46 - 05:29

Total Clouds (% Sky Obscured)

100
98
97
98
95
92
99
85
84
82
83
97
94
69
40
44
37
28
25
28
79
81
79
70

Low Clouds (% Sky Obscured)

100
97
95
96
86
89
95
80
43
66
69
90
88
69
40
44
37
28
25
28
79
72
63
58

Medium Clouds (% Sky Obscured)

0
0
0
0
28
35
30
34
33
44
34
36
38
47
40
32
28
23
17
0
0
0
0
0

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)

1
0
3
1
4
9
6
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5

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
18
12
17
15
13
18
12
4
3
4
7
6
13
25
34
23
6
2
1
1
2
4
4

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
92
92
90
92
92
90
90
90
87
88
88
90
87
85
82
82
78
72
73
71
73
77
82

Pressure (mb)

1018
1018
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1017
1017
1018
1018
1019
1019
1019
1020
1019
1019
1019
1019

Ozone (du)

389
387
384
387
390
394
400
405
400
409
411
412
415
421
427
436
437
441
443
442
443
440
438
436

Wednesday 4

Waning Gibbous 87%

20:34

08:44

16 Bad
17 OK
18 OK
19 OK
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
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:07, Set: 17:07, Transit: 12:08. Moon - Rise: 20:34, Set: 08:44. Civil Dark: 17:38 - 06:37. Nautical Dark: 18:13 - 06:02. Astro Dark: 18:47 - 05:27

Total Clouds (% Sky Obscured)

62
36
40
38
38
46
37
77
87
88
88
87
87
89
91
93
93
93
97
95
96
92
90
73

Low Clouds (% Sky Obscured)

56
36
40
38
33
22
24
68
87
88
88
87
87
89
91
93
93
92
95
94
93
91
89
72

Medium Clouds (% Sky Obscured)

0
0
0
2
3
12
4
17
25
14
30
31
36
45
1
0
0
0
3
7
10
10
5
0

High Clouds (% Sky Obscured)

0
0
1
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)

8
9
9
9
9
9
9
9
6
5
4
4
5
6
6
4
5
5
5
6
9
7
6
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 (%)

6
4
3
10
9
9
10
10
7
10
11
15
10
8
10
13
8
10
18
10
7
6
23
4

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

Chance of Frost

Temperature (°C)

-8
-8
-8
-9
-9
-9
-9
-10
-11
-11
-11
-11
-11
-11
-11
-12
-11
-11
-10
-9
-9
-8
-8
-8

Feels Like (°C)

-13
-13
-12
-13
-13
-13
-13
-13
-15
-15
-16
-15
-16
-15
-16
-17
-16
-16
-17
-16
-16
-15
-15
-15

Dew Point (°C)

-10
-11
-11
-11
-12
-12
-11
-12
-13
-13
-13
-13
-13
-13
-13
-14
-14
-13
-13
-13
-13
-12
-12
-12

Relative Humidity (%)

83
82
80
80
78
80
82
83
85
86
85
83
83
83
83
81
81
80
78
77
74
72
74
75

Pressure (mb)

1019
1020
1020
1020
1020
1020
1019
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1017
1016
1016
1015

Ozone (du)

435
432
429
429
425
418
411
409
400
407
429
449
422
411
415
421
435
443
447
446
443
441
437
433

Thursday 5

Waning Gibbous 79%

21:43

09:01

16 OK
17 OK
18 OK
19 OK
20 OK
21 OK
22 OK
23 OK
00 OK
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

Sun - Rise: 07:06, Set: 17:08, Transit: 12:08. Moon - Rise: 21:43, Set: 09:01. Civil Dark: 17:39 - 06:35. Nautical Dark: 18:14 - 06:01. Astro Dark: 18:48 - 05:26

Total Clouds (% Sky Obscured)

40
44
41
28
22
20
28
37
38
55
90
90
91
95
98
98
99
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

25
17
15
12
10
7
6
4
1
5
2
1
10
14
20
37
54
72
88
92
95
93
89
83

Medium Clouds (% Sky Obscured)

13
24
29
21
13
7
12
19
23
33
33
87
88
90
93
94
95
96
96
98
98
99
99
99

High Clouds (% Sky Obscured)

3
6
9
6
3
1
2
2
2
3
54
70
70
75
85
90
99
100
94
88
82
87
93
99

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

1
2
0
0
0
0
0
0
0
0
0
0
0
1
0
10
17
24
35
37
41
44
39
43

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-14
-14
-13
-13
-14
-14
-15
-15
-16
-16
-17
-18
-19
-18
-19
-18
-18
-19
-19
-17
-17
-16
-11
-11

Dew Point (°C)

-12
-12
-12
-12
-13
-14
-15
-15
-15
-15
-16
-15
-15
-15
-14
-14
-13
-13
-12
-9
-8
-7
-6
-5

Relative Humidity (%)

77
77
82
81
80
78
79
79
78
79
79
79
78
79
80
80
83
83
87
87
87
89
90
91

Pressure (mb)

1015
1015
1015
1015
1015
1015
1014
1014
1013
1013
1012
1011
1010
1009
1008
1007
1006
1006
1005
1004
1003
1002
1001
1000

Ozone (du)

422
410
401
395
392
394
398
401
403
405
399
402
408
409
410
410
410
410
410
411
413
415
417
419

Friday 6

Waning Gibbous 70%

22:51

09:20

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
14 Bad
15 Bad

Sun - Rise: 07:05, Set: 17:10, Transit: 12:08. Moon - Rise: 22:51, Set: 09:20. Civil Dark: 17:40 - 06:34. Nautical Dark: 18:15 - 05:59. Astro Dark: 18:49 - 05:25

Total Clouds (% Sky Obscured)

100
99
98
96
95
96
95
93
88
87
86
84
86
89
92
87
84
83
82
78
87
95
100
100

Low Clouds (% Sky Obscured)

83
80
80
82
84
85
90
93
88
87
84
84
86
87
86
82
74
62
45
28
12
8
4
10

Medium Clouds (% Sky Obscured)

95
91
86
75
63
51
40
27
23
11
6
0
0
0
0
0
1
2
21
41
68
82
89
90

High Clouds (% Sky Obscured)

98
97
96
87
78
67
44
22
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

43
41
45
59
60
51
50
45
33
33
28
22
25
22
18
22
23
24
27
28
30
31
33
34

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

8
7
7
7
8
10
12
13
13
14
14
13
14
14
15
16
16
16
17
17
17
17
17
17

Chance of Frost

Temperature (°C)

-4
-4
-5
-5
-8
-10
-12
-14
-15
-16
-17
-18
-18
-19
-19
-19
-19
-19
-19
-19
-18
-18
-18
-18

Feels Like (°C)

-11
-11
-12
-12
-12
-12
-13
-14
-15
-16
-25
-25
-25
-26
-26
-26
-28
-28
-28
-28
-28
-28
-27
-27

Dew Point (°C)

-5
-5
-6
-6
-10
-13
-16
-17
-18
-20
-21
-21
-22
-22
-23
-23
-23
-23
-22
-22
-21
-21
-21
-21

Relative Humidity (%)

92
92
92
90
85
80
75
74
73
74
73
72
72
72
72
72
73
74
74
75
75
75
76
76

Pressure (mb)

1000
1000
1000
1000
1001
1002
1002
1004
1005
1007
1008
1009
1010
1010
1011
1012
1013
1013
1014
1014
1014
1014
1014
1014

Ozone (du)

421
423
424
425
432
438
445
450
456
461
469
478
486
489
493
496
496
495
495
484
474
463
462
460

Saturday 7

Waning Gibbous 61%

23:58

09:41

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

Sun - Rise: 07:03, Set: 17:11, Transit: 12:08. Moon - Rise: 23:58, Set: 09:41. Civil Dark: 17:42 - 06:33. Nautical Dark: 18:17 - 05:58. Astro Dark: 18:51 - 05:24

Total Clouds (% Sky Obscured)

100
100
100
100
65
40
92
100
100
100
100
91
63
51
52
49
47
55
70
85
95

Low Clouds (% Sky Obscured)

25
40
40
40
40
40
51
63
68
55
43
25
36
42
47
49
47
45
45
50
45

Medium Clouds (% Sky Obscured)

85
80
75
60
50
35
60
75
85
100
100
91
63
51
52
49
47
55
67
73
84

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
12
40
52
49
47
55
70
85
92

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

Fog (%)

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

Precipitation Probability (%)

37
38
38
40
39
37
39
37
37
38
36
32
37
39
40
39
37
36
37
36
34

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

18
18
19
20
20
21
22
21
21
21
21
21
20
20
19
17
16
16
16
16
15

Chance of Frost

Temperature (°C)

-19
-19
-20
-20
-20
-21
-21
-22
-22
-22
-22
-22
-22
-21
-21
-21
-20
-19
-19
-17
-16

Feels Like (°C)

-28
-28
-28
-28
-30
-30
-30
-31
-31
-31
-32
-32
-33
-32
-32
-32
-31
-30
-30
-30
-30

Dew Point (°C)

-22
-23
-23
-23
-24
-24
-25
-25
-25
-26
-25
-25
-25
-25
-24
-24
-23
-22
-22
-20
-19

Relative Humidity (%)

75
76
76
73
72
72
71
72
71
71
71
70
70
70
72
73
76
77
77
77
78

Pressure (mb)

1014
1014
1015
1015
1015
1015
1016
1016
1016
1016
1016
1017
1017
1017
1018
1018
1018
1019
1019
1019
1019

Ozone (du)

459
470
480
491
497
503
508
505
502
499
498
497
496
495
495
494
489
484
480
473
466

Forecast for Hemmingford, Montérégie, Canada (45.05,-73.58)

Generated: 01/02/26 16:17:03. Forecast: 01/02/26 to 07/02/26. Timezone: UTC-5.00