Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 30

Waxing Gibbous 84%

12:35

03:19

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 07:38, Set: 16:17, Transit: 11:57. Moon - Rise: 12:35, Set: 03:19. Civil Dark: 16:51 - 07:03. Nautical Dark: 17:30 - 06:25. Astro Dark: 18:06 - 05:48

Total Clouds (% Sky Obscured)

98
99
100
93
91
87
90
98
99
98
93
95
88
98
99
97
99
100
93
99
100
100
89
100

Low Clouds (% Sky Obscured)

76
79
84
81
80
78
83
77
83
84
84
85
81
80
81
87
88
88
85
84
84
81
78
77

Medium Clouds (% Sky Obscured)

91
83
84
62
65
42
85
93
95
95
62
73
69
93
96
65
56
70
73
97
100
83
82
93

High Clouds (% Sky Obscured)

30
0
0
0
0
0
0
0
0
0
0
0
0
3
3
4
4
35
65
60
62
55
65
100

ISS Passover

Visibility (miles)

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

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
13
9
11
14
9
12
24
17
18
23
17
16
15
16
15
21
12
15
17
19
19

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)

14
15
15
18
18
18
18
18
18
17
16
16
16
15
15
15
15
15
14
14
14
13
13
12

Chance of Frost

Temperature (°C)

-13
-14
-14
-15
-16
-17
-17
-17
-17
-17
-17
-17
-18
-19
-19
-20
-20
-20
-21
-21
-21
-21
-21
-21

Feels Like (°C)

-20
-21
-21
-23
-24
-25
-24
-25
-24
-25
-24
-25
-25
-26
-27
-27
-27
-27
-27
-27
-28
-27
-27
-27

Dew Point (°C)

-15
-16
-17
-19
-19
-21
-20
-21
-20
-21
-21
-21
-22
-22
-23
-23
-24
-24
-24
-24
-25
-24
-24
-24

Relative Humidity (%)

81
81
76
74
75
72
72
71
71
71
71
73
71
73
72
72
71
70
69
69
69
70
70
70

Pressure (mb)

986
987
987
988
989
990
990
991
991
991
991
992
993
993
994
995
995
996
996
996
996
996
997
997

Ozone (du)

373
375
379
376
376
378
388
396
411
407
423
425
425
431
440
444
441
442
443
445
445
439
427
427

Wednesday 31

Waxing Gibbous 92%

13:12

04:45

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 07:38, Set: 16:18, Transit: 11:58. Moon - Rise: 13:12, Set: 04:45. Civil Dark: 16:52 - 07:03. Nautical Dark: 17:30 - 06:25. Astro Dark: 18:07 - 05:49

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
97
76
94
96
95
100
100
100
100
100
100
75
99
83
80

Low Clouds (% Sky Obscured)

76
75
78
76
75
76
71
74
75
76
76
76
77
77
79
79
69
36
33
55
68
85
38
21

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
71
82
92
76
31
76
83
78
100
100
100
100
100
100
72
79
69
66

High Clouds (% Sky Obscured)

100
90
71
100
100
79
60
6
23
11
3
40
68
5
80
80
64
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

0
1
1
2
3
4
2
1
3
2
3
2
2
0
0
0
0
0
1
2
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 (%)

14
9
8
11
12
10
10
7
7
3
5
2
1
2
5
2
2
2
2
3
8
3
2
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)

12
12
11
11
11
10
10
10
10
10
10
10
8
7
6
6
5
4
3
1
1
1
2
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-27
-26
-26
-26
-26
-26
-25
-24
-24
-23
-22
-22
-21
-22
-22
-22
-21
-21
-21
-21
-21
-21
-23
-23

Dew Point (°C)

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

Relative Humidity (%)

69
71
73
74
74
75
74
71
67
66
67
68
72
76
77
79
80
81
81
85
84
83
84
84

Pressure (mb)

997
998
998
999
999
999
1000
1000
1000
1000
1000
1000
1000
1001
1001
1001
1001
1002
1001
1002
1002
1002
1002
1002

Ozone (du)

419
414
414
407
406
423
428
427
427
425
422
418
417
418
421
426
431
431
433
434
439
444
438
419

Thursday 1

Waxing Gibbous 98%

14:02

06:08

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 07:38, Set: 16:18, Transit: 11:58. Moon - Rise: 14:02, Set: 06:08. Civil Dark: 16:53 - 07:03. Nautical Dark: 17:31 - 06:25. Astro Dark: 18:08 - 05:49

Total Clouds (% Sky Obscured)

89
76
83
85
70
89
89
86
99
96
92
90
84
79
82
45
39
62
72
66
79
83
55
27

Low Clouds (% Sky Obscured)

15
12
71
81
70
59
58
30
85
73
72
73
35
45
35
16
11
32
15
8
15
19
13
10

Medium Clouds (% Sky Obscured)

81
76
8
1
12
28
50
64
82
53
12
21
30
14
10
6
24
47
67
66
73
73
48
23

High Clouds (% Sky Obscured)

0
0
0
0
0
2
2
2
2
2
3
12
12
6
6
4
4
5
23
4
5
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

1
2
6
7
2
33
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 (%)

1
0
1
0
0
0
0
0
1
6
1
3
5
11
0
1
0
0
0
4
4
4
4
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
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-24
-25
-25
-27
-29
-28
-28
-25
-24
-24
-23
-23
-23
-24
-25
-26
-25
-25
-26
-27
-26
-26
-25
-25

Dew Point (°C)

-23
-23
-24
-25
-27
-27
-27
-25
-24
-23
-22
-23
-23
-22
-23
-24
-25
-25
-25
-26
-26
-26
-25
-25

Relative Humidity (%)

80
80
79
77
75
74
67
67
66
66
67
66
68
73
74
76
78
78
77
74
72
72
73
74

Pressure (mb)

1003
1003
1003
1005
1005
1006
1006
1006
1006
1006
1005
1006
1007
1007
1007
1008
1008
1008
1009
1009
1009
1009
1009
1009

Ozone (du)

420
406
408
408
389
368
361
358
355
349
341
333
329
329
329
330
330
328
327
325
326
336
338
343

Friday 2

Waxing Gibbous 100%

15:09

07:20

03 OK
04 OK
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

Sun - Rise: 07:38, Set: 16:19, Transit: 11:59. Moon - Rise: 15:09, Set: 07:20. Civil Dark: 16:54 - 07:03. Nautical Dark: 17:32 - 06:25. Astro Dark: 18:09 - 05:49

Total Clouds (% Sky Obscured)

1
15
37
64
75
82
91
93
95
96
94
94
94
95
97
97
92
88
84
84
93
100
98
97

Low Clouds (% Sky Obscured)

1
7
37
64
75
82
91
93
95
96
94
94
94
95
97
97
92
88
84
84
84
62
64
67

Medium Clouds (% Sky Obscured)

0
2
5
36
39
29
36
22
20
17
11
5
5
31
76
83
77
71
50
31
47
74
66
59

High Clouds (% Sky Obscured)

0
0
2
3
2
2
1
0
0
0
0
1
3
20
24
10
0
0
0
0
0
1
2
3

ISS Passover

Visibility (miles)

9
9
7
3
2
2
2
5
9
2
4
2
0
1
1
2
5
6
3
3
1
1
3
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

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

Precipitation Probability (%)

2
2
2
2
2
4
2
5
11
25
18
35
34
29
22
9
5
5
3
8
13
0
2
3

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-22
-23
-24
-23
-23
-22
-20
-18
-16
-15
-14
-14
-14
-14
-15
-16
-16
-17
-17
-17
-18
-19
-19
-20

Feels Like (°C)

-25
-25
-25
-26
-27
-26
-24
-23
-22
-20
-20
-19
-19
-19
-20
-20
-20
-22
-22
-22
-22
-24
-24
-25

Dew Point (°C)

-25
-26
-26
-26
-25
-24
-22
-21
-20
-19
-18
-18
-16
-17
-17
-18
-18
-19
-19
-19
-20
-21
-22
-23

Relative Humidity (%)

74
75
76
77
78
78
80
75
69
70
69
71
83
81
84
84
85
84
84
83
84
80
78
78

Pressure (mb)

1009
1009
1009
1008
1008
1008
1008
1007
1007
1006
1005
1005
1005
1005
1005
1006
1006
1006
1007
1007
1007
1007
1008
1008

Ozone (du)

349
342
339
343
340
344
349
352
347
351
349
354
363
366
368
392
403
403
404
397
390
385
377
377

Saturday 3

Full Moon 99%

16:28

08:16

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 OK
01 OK
02 OK

Sun - Rise: 07:38, Set: 16:20, Transit: 11:59. Moon - Rise: 16:28, Set: 08:16. Civil Dark: 16:55 - 07:03. Nautical Dark: 17:33 - 06:25. Astro Dark: 18:10 - 05:49

Total Clouds (% Sky Obscured)

87
78
92
93
94
96
96
96
98
98
100
100
100
97
91
64
48
51
54
31
20
10
5
5

Low Clouds (% Sky Obscured)

74
68
65
82
83
85
88
91
89
92
91
89
87
57
31
5
15
25
35
23
12
0
0
0

Medium Clouds (% Sky Obscured)

49
32
58
45
50
50
37
2
2
0
0
0
0
2
3
4
3
1
0
0
0
0
1
2

High Clouds (% Sky Obscured)

0
3
60
60
60
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

4
5
7
8
7
1
3
9
9
9
4
4
3
2
3
3
3
4
4
5
5
4
4
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

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 (%)

3
3
4
4
7
5
3
1
10
1
9
11
12
10
8
3
3
3
0
1
2
0
1
1

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-25
-26
-26
-27
-27
-27
-27
-27
-26
-25
-24
-23
-23
-23
-24
-24
-23
-26
-26
-26
-26
-26
-26
-28

Dew Point (°C)

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

Relative Humidity (%)

75
75
76
73
69
72
69
66
66
65
64
67
70
73
74
76
74
74
73
72
73
74
74
75

Pressure (mb)

1009
1010
1010
1011
1011
1012
1012
1013
1013
1013
1013
1012
1013
1014
1014
1015
1016
1016
1017
1017
1017
1018
1018
1019

Ozone (du)

375
372
369
375
382
387
383
378
372
366
361
361
361
360
366
371
377
379
381
384
385
386
387
389

Sunday 4

Waning Gibbous 95%

17:52

08:57

03 OK
04 OK
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 OK
22 OK
23 OK
00 OK
01 OK
02 OK

Sun - Rise: 07:38, Set: 16:22, Transit: 12:00. Moon - Rise: 17:52, Set: 08:57. Civil Dark: 16:56 - 07:03. Nautical Dark: 17:34 - 06:25. Astro Dark: 18:11 - 05:49

Total Clouds (% Sky Obscured)

5
9
39
44
49
49
49
69
88
100
100
100
100
93
86
80
55
31
6
6
6
6
6
7

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
19
56
66
75
70
65
60
37
17
16
3
7
1
6
6
6
6
7

Medium Clouds (% Sky Obscured)

5
7
8
1
1
0
0
0
0
0
0
0
0
1
4
14
21
27
6
6
6
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
1
1

ISS Passover

Visibility (miles)

3
3
4
6
7
7
8
8
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
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1

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

Chance of Frost

Temperature (°C)

-23
-24
-24
-24
-25
-24
-24
-23
-22
-22
-21
-20
-21
-21
-22
-23
-24
-24
-25
-25
-25
-25
-25
-25

Feels Like (°C)

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

Dew Point (°C)

-26
-27
-27
-27
-28
-28
-28
-28
-27
-27
-26
-26
-26
-25
-26
-26
-27
-27
-27
-28
-28
-28
-28
-28

Relative Humidity (%)

75
74
74
73
72
69
66
64
62
59
57
59
62
65
68
70
74
74
75
74
74
74
74
75

Pressure (mb)

1019
1020
1020
1021
1021
1022
1022
1023
1022
1022
1021
1021
1022
1022
1022
1023
1023
1023
1023
1023
1023
1022
1022
1022

Ozone (du)

391
394
391
388
385
384
384
383
380
377
374
374
374
374
371
368
365
362
360
357
353
349
345
341

Monday 5

Waning Gibbous 89%

19:15

09:27

Sun - Rise: 07:38, Set: 16:23, Transit: 12:00. Moon - Rise: 19:15, Set: 09:27. Civil Dark: 16:57 - 07:03. Nautical Dark: 17:35 - 06:25. Astro Dark: 18:12 - 05:49

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Lac-Saint-Louis, Lanaudière, Canada (46.53,-73.70)

Generated: 30/12/25 03:13:17. Forecast: 30/12/25 to 05/01/26. Timezone: UTC-5.00