Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 5

Waning Gibbous 97%

16:25

09:36

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
10 Bad

Sun - Rise: 07:20, Set: 16:07, Transit: 11:43. Moon - Rise: 16:25, Set: 09:36. Civil Dark: 16:41 - 06:46. Nautical Dark: 17:19 - 06:08. Astro Dark: 17:55 - 05:32

Total Clouds (% Sky Obscured)

91
87
96
92
84
79
79
70
49
60
77
77
93
99
100
100
100
100
100
100
100
99
95
94

Low Clouds (% Sky Obscured)

32
29
26
24
14
21
21
18
7
15
48
59
71
87
84
82
78
78
79
79
79
80
80
86

Medium Clouds (% Sky Obscured)

91
86
96
90
82
78
46
40
35
36
43
41
47
49
92
100
100
100
100
100
99
97
90
87

High Clouds (% Sky Obscured)

46
10
4
20
6
9
2
3
2
2
0
26
73
85
100
100
100
100
100
78
26
58
30
8

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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
4
13
13
14
13
18
19
20
22
29

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-20
-17
-16
-15
-14
-14
-15
-14
-15
-14
-15
-14
-13
-13
-13
-12
-11
-11
-11
-10
-10
-10
-9
-9

Dew Point (°C)

-18
-15
-15
-16
-14
-14
-13
-13
-13
-13
-14
-13
-13
-12
-11
-10
-10
-9
-9
-9
-8
-8
-8
-7

Relative Humidity (%)

67
70
65
60
67
74
81
85
85
85
83
85
85
87
87
83
83
85
85
85
85
84
82
82

Pressure (mb)

1024
1022
1021
1019
1019
1018
1018
1017
1017
1016
1016
1015
1015
1014
1014
1014
1013
1012
1012
1011
1011
1010
1010
1010

Ozone (du)

363
361
364
364
369
376
382
374
359
355
353
354
359
356
354
352
356
366
371
376
380
384
389
394

Saturday 6

Waning Gibbous 92%

17:39

10:24

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 Good
02 Good
03 Good
04 Good
05 Good
06 Good
07 OK
08 Good
09 OK
10 OK

Sun - Rise: 07:21, Set: 16:07, Transit: 11:43. Moon - Rise: 17:39, Set: 10:24. Civil Dark: 16:41 - 06:47. Nautical Dark: 17:19 - 06:09. Astro Dark: 17:55 - 05:33

Total Clouds (% Sky Obscured)

93
97
97
96
96
98
98
97
88
96
93
92
35
32
7
1
2
4
6
11
23
10
33
31

Low Clouds (% Sky Obscured)

85
87
87
85
80
85
91
93
75
93
80
85
21
13
2
0
1
1
1
1
1
1
0
0

Medium Clouds (% Sky Obscured)

76
49
53
80
85
90
72
13
45
67
74
81
1
1
1
0
0
0
1
0
0
1
17
19

High Clouds (% Sky Obscured)

1
0
0
4
0
0
1
0
0
0
1
0
0
4
0
0
1
3
5
11
23
10
33
31

ISS Passover

Visibility (miles)

8
0
0
1
2
0
1
0
0
2
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
1
1
0

Precipitation Type

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

Precipitation Probability (%)

37
48
47
39
42
36
39
36
25
26
22
9
6
3
1
1
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0.2
0.1
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
12
12
13
13
13
12
12
11
11
10
13
10
9
7
6
5
5
4
3
3
3
4
3

Chance of Frost

Temperature (°C)

-3
-2
-2
-2
-2
-2
-2
-1
-1
-1
-1
-2
-4
-7
-9
-10
-11
-12
-13
-13
-14
-14
-13
-12

Feels Like (°C)

-9
-8
-8
-7
-7
-8
-7
-7
-7
-5
-7
-7
-9
-11
-13
-13
-14
-15
-15
-15
-16
-17
-15
-15

Dew Point (°C)

-6
-4
-3
-3
-3
-2
-2
-2
-2
-1
-3
-3
-6
-10
-12
-13
-14
-15
-15
-16
-17
-17
-17
-17

Relative Humidity (%)

82
89
94
92
91
94
94
96
96
94
86
89
89
77
78
77
78
79
79
79
78
74
69
62

Pressure (mb)

1009
1008
1007
1007
1007
1007
1007
1008
1008
1008
1009
1010
1012
1013
1015
1016
1018
1019
1019
1020
1021
1021
1022
1022

Ozone (du)

400
396
394
377
369
367
363
360
364
366
363
356
354
356
356
358
361
360
360
362
362
363
371
376

Sunday 7

Waning Gibbous 84%

19:00

10:59

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 OK
06 OK
07 OK
08 Good
09 Good
10 Good

Sun - Rise: 07:22, Set: 16:07, Transit: 11:44. Moon - Rise: 19:00, Set: 10:59. Civil Dark: 16:41 - 06:48. Nautical Dark: 17:19 - 06:10. Astro Dark: 17:55 - 05:34

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
99
100
100
100
97
57
71
86
100
87
40
37
26
14
2
2

Low Clouds (% Sky Obscured)

0
0
6
25
25
25
38
46
50
56
35
35
40
40
59
79
96
84
40
37
26
14
1
1

Medium Clouds (% Sky Obscured)

91
100
100
100
100
100
100
100
99
100
100
100
97
45
58
78
100
53
23
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
70
70
70
75
80
13
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
0
0
0
0
0
0
2
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
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
1
2
4
7
16
39
43
42
39
34
24
7
4
2
1
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-14
-15
-14
-14
-14
-14
-14
-14
-14
-14
-15
-15
-15
-15
-15
-15
-16
-17
-19
-18
-18
-18
-18
-18

Dew Point (°C)

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

Relative Humidity (%)

61
60
61
61
62
65
68
68
71
72
72
81
88
88
88
90
90
85
74
76
73
73
66
62

Pressure (mb)

1022
1021
1021
1020
1020
1020
1020
1020
1020
1019
1019
1018
1018
1018
1018
1019
1019
1020
1021
1022
1023
1024
1024
1025

Ozone (du)

376
377
379
381
380
379
379
381
384
387
383
383
383
387
394
406
421
424
428
434
434
428
428
431

Monday 8

Waning Gibbous 75%

20:21

10:59

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

Sun - Rise: 07:23, Set: 16:07, Transit: 11:44. Moon - Rise: 20:21, Set: 10:59. Civil Dark: 16:41 - 06:49. Nautical Dark: 17:19 - 06:11. Astro Dark: 17:55 - 05:35

Total Clouds (% Sky Obscured)

3
22
34
45
15
9
8
4
5
8
9
11
10
10
19
23
30
35
37
35
31
48
60
80

Low Clouds (% Sky Obscured)

3
22
34
45
14
8
8
4
4
4
4
4
8
9
19
23
30
35
37
33
11
11
9
15

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
2
2
3
2
2
9
11
20
10
1
1
16
30
45
59

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
1
1
1
2
1
13
14
1
1
1
1
1
1
1

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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-17
-16
-16
-16
-16
-15
-15
-16
-16
-16
-17
-17
-18
-19
-19
-20
-20
-20
-20
-19
-20
-19
-18
-17

Dew Point (°C)

-19
-18
-18
-18
-17
-16
-16
-16
-16
-17
-17
-17
-17
-17
-17
-17
-17
-17
-17
-16
-17
-17
-16
-15

Relative Humidity (%)

60
60
59
59
63
75
79
81
81
81
82
84
82
81
81
82
82
81
79
83
82
79
78
73

Pressure (mb)

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

Ozone (du)

432
429
428
421
407
404
407
412
419
424
426
430
428
428
428
429
429
430
428
425
423
423
425
426

Tuesday 9

Waning Gibbous 65%

21:38

11:24

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
10 Bad

Sun - Rise: 07:24, Set: 16:07, Transit: 11:45. Moon - Rise: 21:38, Set: 11:24. Civil Dark: 16:41 - 06:50. Nautical Dark: 17:19 - 06:12. Astro Dark: 17:55 - 05:35

Total Clouds (% Sky Obscured)

91
100
92
99
100
100
100
100
100
100
100
99
98
97
98
98
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

20
28
24
30
60
70
79
65
65
80
80
88
88
92
93
96
99
99
98
97
97
96
96
95

Medium Clouds (% Sky Obscured)

68
100
92
53
100
100
100
92
81
71
64
73
70
69
79
89
100
100
100
100
99
98
97
98

High Clouds (% Sky Obscured)

2
3
26
73
95
76
65
50
37
28
17
14
16
21
38
54
75
86
93
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
0
0
0
1
1
1
2
2
1
1
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
None
None
None
None
Snow
Snow
Snow
None
None
None
None
None
None
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

0
0
0
0
1
3
22
41
38
34
26
25
24
20
26
32
39
49
55
60
65
68
70
77

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.2
0.1
0.1
0
0
0
0
0
0
0
0.1
0.2
0.2
0.2
0.3
0.3
0.4

Wind Speed/Direction (mph)

10
10
10
9
8
7
6
7
6
5
5
5
5
5
7
7
8
8
9
9
8
9
9
9

Chance of Frost

Temperature (°C)

-10
-9
-8
-8
-8
-8
-8
-8
-7
-7
-7
-7
-6
-6
-6
-5
-5
-5
-5
-4
-4
-4
-3
-2

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
74
75
77
75
75
74
85
92
90
89
89
87
87
89
90
90
92
92
92
94
94
94
96

Pressure (mb)

1019
1017
1016
1015
1014
1013
1013
1012
1011
1011
1010
1009
1009
1008
1007
1007
1006
1006
1005
1005
1004
1004
1003
1003

Ozone (du)

431
431
429
432
432
434
430
430
419
411
404
396
390
383
377
366
355
344
341
338
335
334
333
332

Wednesday 10

Waning Gibbous 55%

22:51

11:45

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
10 Bad

Sun - Rise: 07:25, Set: 16:07, Transit: 11:45. Moon - Rise: 22:51, Set: 11:45. Civil Dark: 16:41 - 06:50. Nautical Dark: 17:19 - 06:13. Astro Dark: 17:55 - 05:36

Total Clouds (% Sky Obscured)

100
100
100
99
99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
100

Low Clouds (% Sky Obscured)

94
94
94
94
93
92
94
92
93
93
93
92
91
91
92
93
94
89
84
80
79
75
71
65

Medium Clouds (% Sky Obscured)

98
98
96
94
93
96
98
100
100
100
100
100
100
100
100
100
100
98
95
93
74
57
45
70

High Clouds (% Sky Obscured)

100
99
98
98
97
98
98
94
92
87
88
88
94
100
92
83
73
49
28
10
10
15
15
22

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
0
3
6
9
6
3
0
3
6
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None

Precipitation Probability (%)

85
92
92
92
94
92
90
87
90
88
82
74
66
53
62
66
68
69
61
49
43
36
27
36

Precipitation Amount (mm)

0.5
0.7
0.6
0.6
0.7
0.6
0.5
0.5
0.5
0.5
0.4
0.4
0.3
0.2
0.2
0.3
0.3
0.3
0.3
0.2
0.1
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
96
94
96
96
96
96
96
96
96
92
89
86
89
94
98
92
91
87
89
89
91

Pressure (mb)

1002
1001
1000
1000
999
999
999
999
999
999
999
999
998
998
998
998
998
998
999
999
999
1000
1000
1001

Ozone (du)

328
324
320
321
321
321
322
323
324
324
325
325
327
329
331
334
337
340
336
333
329
330
331
333

Thursday 11

Third Quarter 44%

00:00

12:02

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: 07:26, Set: 16:07, Transit: 11:46. Moon - Rise: 00:00, Set: 12:02. Civil Dark: 16:41 - 06:51. Nautical Dark: 17:19 - 06:13. Astro Dark: 17:55 - 05:37

Total Clouds (% Sky Obscured)

100
100
100
100
100
86
68
57
55
50
49
64
81
100

Low Clouds (% Sky Obscured)

59
52
45
38
44
32
19
8
16
24
30
29
28
28

Medium Clouds (% Sky Obscured)

87
100
100
100
100
84
65
48
43
35
21
39
65
94

High Clouds (% Sky Obscured)

25
32
32
33
51
77
68
57
55
50
49
64
81
100

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Type

None
Sleet
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

47
55
42
29
10
13
10
4
5
4
2
7
7
4

Precipitation Amount (mm)

0
0.3
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

11
13
14
15
15
16
16
15
14
14
13
12
11
9

Chance of Frost

Temperature (°C)

0
-0
-1
-2
-3
-5
-6
-7
-8
-8
-8
-9
-9
-9

Feels Like (°C)

-5
-4
-5
-8
-8
-10
-10
-10
-11
-14
-14
-14
-14
-14

Dew Point (°C)

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

Relative Humidity (%)

91
94
94
89
86
81
80
80
80
82
82
83
85
85

Pressure (mb)

1001
1001
1001
1001
1002
1003
1004
1005
1005
1005
1005
1004
1004
1003

Ozone (du)

327
322
316
312
307
303
303
304
304
302
299
297
299
302

Forecast for Sorel-Tracy, Montérégie, Canada (46.04,-73.11)

Generated: 05/12/25 11:03:57. Forecast: 05/12/25 to 11/12/25. Timezone: UTC-5.00