Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 8

Waning Gibbous 75%

20:24

10:56

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

Sun - Rise: 07:19, Set: 16:09, Transit: 11:44. Moon - Rise: 20:24, Set: 10:56. Civil Dark: 16:43 - 06:45. Nautical Dark: 17:20 - 06:08. Astro Dark: 17:56 - 05:32

Total Clouds (% Sky Obscured)

76
87
61
5
3
3
4
24
46
50
50
34
6
5
3
22
4
4
3
5
6
8
7
8

Low Clouds (% Sky Obscured)

28
33
10
0
0
0
0
2
9
5
15
10
2
1
1
5
1
1
1
1
1
0
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
2
2
2
2
2

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
1
4
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
1

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
2
1
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)

1
0
0
5
5
5
8
8
9
9
9
7
5
5
5
5
5
5
5
5
4
4
4
4

Chance of Frost

Temperature (°C)

-12
-14
-15
-17
-18
-17
-16
-15
-14
-13
-13
-14
-15
-17
-18
-18
-19
-19
-19
-19
-19
-19
-20
-20

Feels Like (°C)

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

Dew Point (°C)

-14
-16
-18
-20
-21
-20
-19
-18
-18
-17
-16
-17
-18
-19
-20
-21
-21
-22
-22
-22
-22
-22
-22
-22

Relative Humidity (%)

88
84
79
77
78
77
75
74
72
73
76
78
81
81
81
81
80
79
78
78
78
78
79
79

Pressure (mb)

1022
1022
1024
1025
1026
1027
1028
1028
1027
1026
1026
1026
1026
1027
1027
1028
1027
1027
1026
1026
1026
1025
1025
1025

Ozone (du)

401
402
403
399
398
400
400
404
403
402
399
394
400
412
418
417
417
417
411
413
414
402
407
416

Tuesday 9

Waning Gibbous 75%

21:40

11:22

04 OK
05 OK
06 OK
07 OK
08 Bad
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

Sun - Rise: 07:20, Set: 16:09, Transit: 11:45. Moon - Rise: 21:40, Set: 11:22. Civil Dark: 16:43 - 06:46. Nautical Dark: 17:20 - 06:09. Astro Dark: 17:56 - 05:33

Total Clouds (% Sky Obscured)

8
8
18
25
65
84
100
100
100
100
100
100
100
100
100
100
100
100
95
96
94
98
100
100

Low Clouds (% Sky Obscured)

2
2
2
1
25
25
25
20
20
20
11
7
10
9
10
74
84
83
81
84
82
84
93
83

Medium Clouds (% Sky Obscured)

4
3
12
19
56
67
100
100
100
100
100
100
100
100
100
100
100
80
80
73
45
92
100
97

High Clouds (% Sky Obscured)

3
4
4
4
7
38
46
79
98
100
92
100
100
100
100
85
86
90
77
0
2
0
7
9

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
1
2
9
4
0

Fog (%)

2
6
8
14
35
0
2
2
4
2
1
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
None
None
None
Snow
Snow

Precipitation Probability (%)

0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
8
27
41
36
21
21
60
62

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0
0
0
0.4
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-20
-19
-19
-19
-17
-14
-11
-9
-8
-8
-7
-7
-8
-9
-9
-8
-8
-7
-6
-6
-6
-6
-5
-5

Feels Like (°C)

-23
-23
-22
-22
-21
-20
-17
-15
-15
-13
-13
-13
-13
-14
-14
-14
-14
-14
-14
-14
-13
-12
-11
-11

Dew Point (°C)

-22
-22
-21
-21
-20
-17
-14
-13
-12
-11
-11
-11
-12
-12
-12
-12
-12
-11
-10
-8
-9
-8
-8
-5

Relative Humidity (%)

80
80
80
80
80
79
80
75
74
74
74
73
74
75
75
74
68
71
77
85
82
80
81
94

Pressure (mb)

1024
1024
1023
1023
1022
1022
1021
1020
1018
1017
1015
1014
1013
1012
1011
1011
1010
1009
1008
1008
1007
1006
1005
1004

Ozone (du)

422
421
421
426
425
422
421
425
426
426
423
421
423
425
427
426
421
416
411
407
402
394
387
380

Wednesday 10

Waning Gibbous 65%

22:52

11:43

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

Sun - Rise: 07:21, Set: 16:10, Transit: 11:45. Moon - Rise: 22:52, Set: 11:43. Civil Dark: 16:43 - 06:47. Nautical Dark: 17:20 - 06:10. Astro Dark: 17:56 - 05:34

Total Clouds (% Sky Obscured)

100
94
100
100
100
100
100
100
100
100
100
100
100
100
100
100
97
96
99
100
98
98
99
99

Low Clouds (% Sky Obscured)

81
77
84
78
57
74
88
100
100
100
90
82
92
86
94
91
87
89
97
91
87
89
90
93

Medium Clouds (% Sky Obscured)

60
44
93
100
98
100
100
100
100
100
100
100
100
100
100
100
95
93
98
100
93
93
93
93

High Clouds (% Sky Obscured)

73
91
100
100
100
100
100
100
100
100
100
100
52
35
35
50
45
50
50
65
69
53
52
54

ISS Passover

Visibility (miles)

0
2
9
9
9
9
9
9
8
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
0
0
0

Precipitation Type

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

Precipitation Probability (%)

43
24
13
11
6
9
34
64
95
85
85
68
77
95
92
88
95
88
74
70
68
50
54
58

Precipitation Amount (mm)

0.2
0
0
0
0
0
0
0.2
0.8
0.5
0.6
0.3
0.4
1
0.6
0.6
0.8
0.6
0.4
0.4
0.3
0.2
0.2
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
89
84
87
87
87
87
87
89
94
94
98
98
98
100
98
98
100
100
98
98
98
96
96

Pressure (mb)

1004
1003
1003
1003
1003
1002
1001
1000
999
997
996
995
994
993
993
992
992
991
991
991
990
991
992
993

Ozone (du)

365
346
339
338
335
333
337
338
337
336
339
338
341
339
339
338
340
346
347
341
346
348
353
355

Thursday 11

Third Quarter 55%

00:00

12:01

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

Sun - Rise: 07:22, Set: 16:10, Transit: 11:46. Moon - Rise: 00:00, Set: 12:01. Civil Dark: 16:43 - 06:48. Nautical Dark: 17:21 - 06:11. Astro Dark: 17:56 - 05:35

Total Clouds (% Sky Obscured)

98
98
53
55
61
76
87
85
82
87
93
96
50
42
41
37
37
33
38
39
47
47
47
38

Low Clouds (% Sky Obscured)

92
92
53
55
61
73
87
85
82
87
93
96
36
18
22
13
9
9
9
15
22
36
40
38

Medium Clouds (% Sky Obscured)

91
87
34
39
37
36
24
13
0
15
28
34
31
32
29
25
29
33
38
39
45
46
46
38

High Clouds (% Sky Obscured)

65
2
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
0
9
9
9
9
9
8
5
1
1
7
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
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 (%)

50
34
14
12
10
6
7
11
6
21
15
13
21
27
31
29
27
26
25
25
24
25
25
24

Precipitation Amount (mm)

0.2
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
11
12
12
12
12
12
13
13
13
13
13
14
13
12
12
11
11
11
11
12
12
12
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-9
-11
-13
-12
-13
-14
-14
-15
-15
-15
-16
-16
-17
-16
-15
-15
-15
-16
-17
-17
-18
-18
-17
-17

Dew Point (°C)

-5
-6
-9
-10
-10
-11
-10
-10
-11
-10
-11
-11
-12
-13
-13
-13
-14
-15
-16
-16
-16
-15
-15
-16

Relative Humidity (%)

96
89
80
79
82
83
85
85
85
87
85
82
78
77
77
78
80
81
83
83
81
83
84
84

Pressure (mb)

994
995
997
999
1000
1001
1001
1001
1001
1001
1002
1002
1003
1003
1004
1005
1005
1005
1005
1005
1005
1005
1006
1006

Ozone (du)

360
360
357
357
363
367
370
372
374
374
374
371
372
372
374
373
375
374
373
375
376
376
377
370

Friday 12

Waning Crescent 44%

01:06

12:18

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

Sun - Rise: 07:22, Set: 16:10, Transit: 11:46. Moon - Rise: 01:06, Set: 12:18. Civil Dark: 16:43 - 06:49. Nautical Dark: 17:21 - 06:11. Astro Dark: 17:57 - 05:36

Total Clouds (% Sky Obscured)

36
33
31
29
32
34
29
21
19
16
19
16
17
50
98
96
95
93
96
93
88
68
54
53

Low Clouds (% Sky Obscured)

36
33
31
29
32
34
29
21
19
16
19
16
17
40
94
83
73
62
71
75
82
68
54
53

Medium Clouds (% Sky Obscured)

36
33
31
29
32
34
29
21
19
16
19
6
7
16
15
22
31
40
50
60
80
68
54
53

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
2
3
3
26
51
74
85
87
88
68
54
40

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
6
8
9
6
3
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
Snow
Snow
Snow
Snow
Snow
None
None
None
Snow
Snow
None
None
None
None
None
None
Snow
Snow

Precipitation Probability (%)

20
17
10
23
30
34
46
55
60
51
39
24
27
28
28
33
19
6
10
15
20
35
44
51

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
10
9
9
9
10
12
12
14
18
16
14
13
13
13
12
11
10
9
8
8
7
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-18
-19
-19
-19
-18
-16
-14
-13
-12
-11
-10
-10
-12
-14
-15
-15
-15
-15
-15
-15
-15
-16
-12
-13

Dew Point (°C)

-17
-17
-18
-18
-17
-15
-13
-12
-11
-10
-9
-10
-12
-13
-14
-13
-12
-12
-12
-10
-9
-9
-8
-8

Relative Humidity (%)

84
86
85
84
83
84
85
81
80
82
85
87
86
86
86
85
85
83
81
87
88
90
92
92

Pressure (mb)

1006
1007
1007
1007
1007
1007
1007
1007
1007
1006
1007
1007
1008
1008
1009
1009
1009
1009
1009
1008
1008
1007
1007
1007

Ozone (du)

365
361
354
349
345
344
349
353
352
352
351
352
351
351
352
352
349
346
344
347
350
354
358
363

Saturday 13

Waning Crescent 34%

02:11

12:34

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

Sun - Rise: 07:23, Set: 16:10, Transit: 11:47. Moon - Rise: 02:11, Set: 12:34. Civil Dark: 16:44 - 06:49. Nautical Dark: 17:21 - 06:12. Astro Dark: 17:57 - 05:36

Total Clouds (% Sky Obscured)

62
73
81
79
77
74
84
93
100
99
99
97
98
95
93
88
93
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

62
68
73
46
21
0
3
6
10
6
3
0
26
47
65
72
79
85
83
84
85
84
82
81

Medium Clouds (% Sky Obscured)

62
55
45
39
37
39
37
38
40
41
41
42
46
50
50
39
34
29
32
45
59
40
23
6

High Clouds (% Sky Obscured)

28
14
0
0
0
0
0
0
0
0
2
9
11
11
3
2
1
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

54
53
49
37
25
18
25
26
24
20
15
4
7
3
2
22
26
26
33
37
34
33
32
25

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-13
-14
-14
-13
-12
-12
-12
-12
-11
-12
-14
-14
-14
-15
-15
-15
-18
-19
-19
-19
-20
-20
-21
-21

Dew Point (°C)

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

Relative Humidity (%)

92
88
83
80
83
87
90
83
77
70
68
65
64
66
69
72
76
81
84
84
83
83
81
81

Pressure (mb)

1007
1007
1007
1007
1008
1008
1009
1009
1008
1008
1008
1009
1009
1010
1010
1011
1011
1011
1012
1012
1013
1013
1014
1015

Ozone (du)

367
371
375
378
380
381
382
383
385
386
386
386
386
386
386
386
386
386
387
383
379
375
376
378

Sunday 14

Waning Crescent 25%

03:16

12:51

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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:24, Set: 16:10, Transit: 11:47. Moon - Rise: 03:16, Set: 12:51. Civil Dark: 16:44 - 06:50. Nautical Dark: 17:21 - 06:13. Astro Dark: 17:57 - 05:37

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
99
98
97
99
99
100
93
85
78
82
87
93
83
74
64

Low Clouds (% Sky Obscured)

80
79
82
84
86
88
88
88
88
86
82
76
77
74
70
74
75
78
72
67
62

Medium Clouds (% Sky Obscured)

5
10
14
27
29
31
33
26
19
15
13
12
13
12
13
8
4
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

ISS Passover

Visibility (miles)

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

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 (%)

26
26
24
25
24
21
22
22
18
16
14
6
12
10
4
10
9
4
8
8
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-21
-22
-22
-22
-22
-22
-21
-21
-21
-21
-20
-19
-19
-19
-19
-19
-22
-21
-21
-21
-21

Dew Point (°C)

-17
-17
-17
-17
-17
-17
-17
-17
-16
-16
-16
-16
-16
-16
-17
-18
-18
-18
-18
-19
-19

Relative Humidity (%)

79
79
79
81
80
81
82
81
81
78
79
81
81
84
83
84
84
85
86
84
84

Pressure (mb)

1016
1017
1018
1019
1020
1021
1022
1022
1022
1022
1023
1023
1024
1025
1025
1026
1026
1027
1027
1027
1027

Ozone (du)

379
379
379
379
380
380
381
381
381
382
378
374
370
361
352
343
346
348
351
345
340

Forecast for Domaine-Joyeux, Montérégie, Canada (45.22,-73.09)

Generated: 08/12/25 04:37:20. Forecast: 08/12/25 to 14/12/25. Timezone: UTC-5.00