Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 2

Waning Gibbous 99%

21:38

06:44

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 06:28, Set: 19:27, Transit: 12:57. Moon - Rise: 21:38, Set: 06:44. Civil Dark: 19:57 - 05:57. Nautical Dark: 20:34 - 05:20. Astro Dark: 21:13 - 04:42

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
96
97
92
100
100
100

Low Clouds (% Sky Obscured)

92
95
94
95
93
94
100
93
100
100
100
100
100
100
100
100
100
97
93
97
92
100
100
100

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
82
67
17
41
63
35
35
5
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
61
0
0
0
0
0
0
0
0
0
1
3
0

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
2
0
0

Fog (%)

0
0
0
100
75
59
51
88
93
84
84
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Snow
Snow
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Light Rain
None
None
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
95
93
52
39
64
46
14
36
36
5
29
22
8
18

Precipitation Amount (mm)

2.2
1.9
2.1
1.6
1.5
1.4
0.9
1.4
1.7
2.6
0.7
0.6
0
0
0.3
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-2
-2
-1
-1
-1
-0
0
-1
0
-0
0
1
2
3
4
5
6
8
9
9
9
8
7
5

Feels Like (°C)

-8
-8
-7
-7
-6
-6
-5
-5
-5
-5
-5
-4
-3
-1
-1
2
3
5
6
6
5
3
2
-0

Dew Point (°C)

-2
-2
-2
-1
-1
-1
-0
-1
-1
-1
-0
1
2
3
4
5
6
8
9
9
9
8
6
5

Relative Humidity (%)

96
96
96
98
98
98
98
96
96
98
98
100
100
100
100
100
100
100
100
100
100
98
98
100

Pressure (mb)

1030
1028
1027
1026
1024
1023
1021
1020
1018
1017
1016
1015
1014
1013
1012
1011
1010
1009
1009
1008
1008
1009
1010
1012

Ozone (du)

338
336
336
335
336
334
335
339
344
349
355
360
366
367
365
364
363
365
367
365
363
359
360
361

Friday 3

Waning Gibbous 95%

No Rise

07:05

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 06:26, Set: 19:28, Transit: 12:57. Moon - Rise: No Rise, Set: 07:05. Civil Dark: 19:59 - 05:55. Nautical Dark: 20:36 - 05:18. Astro Dark: 21:15 - 04:39

Total Clouds (% Sky Obscured)

100
100
100
100
90
79
83
79
79
83
94
80
100
99
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
100
100
89
79
83
79
78
82
92
76
81
78
80
48
8
40
55
76
88
92
93
95

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
16
25
24
34
80
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

0
2
3
3
24
8
7
55
62
3
6
3
63
95
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

0
0
4
3
9
9
7
8
9
9
9
9
9
9
9
9
9
9
9
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
Sleet
Ice pellet
Frozen rai
Frozen rai
Frozen rai
Frozen rai

Precipitation Probability (%)

15
8
5
3
0
0
0
0
0
1
0
0
0
0
0
1
0
18
57
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.7
2.4
3.9
3.1
2.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
96
92
92
87
89
89
89
91
90
87
82
79
81
83
83
83
84
89
94
94
96
96
96

Pressure (mb)

1014
1015
1018
1020
1022
1023
1025
1026
1027
1028
1029
1030
1030
1029
1028
1028
1027
1026
1025
1023
1022
1021
1019
1017

Ozone (du)

357
356
359
359
359
363
361
359
360
362
360
358
360
360
361
356
352
348
342
341
338
338
337
334

Saturday 4

Waning Gibbous 90%

22:47

07:30

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 06:24, Set: 19:29, Transit: 12:57. Moon - Rise: 22:47, Set: 07:30. Civil Dark: 20:00 - 05:53. Nautical Dark: 20:37 - 05:16. Astro Dark: 21:16 - 04:37

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
96
100
99
100
98
98
89
94
98

Low Clouds (% Sky Obscured)

95
95
93
94
98
99
93
92
100
100
79
92
98
99
96
91
100
97
100
92
90
76
79
87

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
20
68
25
11
2
22
0
0
0
2
14
27
38
55
74

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
40
35
17
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
4
4
9
9
9
9
3
1
0
0
7
3
0

Fog (%)

0
0
0
0
0
0
0
0
6
4
39
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Frozen rai
Moderate Rain
Moderate Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
Snow
Snow
None
None
None
None

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
81
58
52
24
23
41
35
23
28
40
46
24
21
36
34

Precipitation Amount (mm)

1.5
3.3
2.7
3.3
2.3
1.9
1.8
1.1
0.8
0.4
0.2
0
0
0
0
0
0
0
0.2
0.2
0
0
0
0

Wind Speed/Direction (mph)

18
17
15
14
16
13
11
10
9
7
6
10
10
11
11
11
11
12
12
11
11
11
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
100
100
98
98
100
100
98
98
98
98
98
98
88
91
89
89
94
96
96
88
91
96

Pressure (mb)

1014
1012
1010
1008
1006
1005
1004
1003
1002
1002
1002
1002
1002
1002
1002
1003
1003
1002
1002
1002
1003
1003
1004
1005

Ozone (du)

333
335
338
340
341
338
338
343
346
349
355
361
371
377
376
378
389
395
394
392
390
391
391
391

Sunday 5

Waning Gibbous 84%

23:55

08:01

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 06:22, Set: 19:31, Transit: 12:56. Moon - Rise: 23:55, Set: 08:01. Civil Dark: 20:02 - 05:51. Nautical Dark: 20:39 - 05:14. Astro Dark: 21:18 - 04:35

Total Clouds (% Sky Obscured)

97
98
99
98
98
99
99
81
65
51
49
57
53
72
87
100
99
99
99
99
100
100
99
98

Low Clouds (% Sky Obscured)

83
84
87
88
92
96
99
81
65
51
49
57
53
72
80
80
84
91
96
98
97
98
91
71

Medium Clouds (% Sky Obscured)

91
86
92
90
75
60
25
14
6
0
0
45
45
63
82
100
96
93
91
94
97
100
97
98

High Clouds (% Sky Obscured)

0
0
0
0
1
0
0
0
0
3
37
52
29
26
40
55
56
53
48
40
39
37
26
14

ISS Passover

Visibility (miles)

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

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
Snow
None
None
None
None
None
None

Precipitation Probability (%)

25
30
30
18
19
11
9
15
5
0
0
0
0
0
1
8
20
36
33
29
31
20
15
14

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-2
-2
-3
-4
-5
-5
-6
-6
-6
-7
-7
-6
-5
-4
-3
-2
-2
-2
-2
-2
-3
-4
-5
-5

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
89
89
87
87
87
85
87
87
85
85
77
75
69
65
63
66
78
79
76
79
81
85
89

Pressure (mb)

1005
1005
1006
1007
1007
1008
1009
1009
1010
1011
1012
1012
1012
1013
1012
1012
1012
1012
1012
1012
1013
1013
1014
1015

Ozone (du)

394
395
393
392
393
391
394
397
402
405
410
414
415
415
418
418
418
419
423
426
430
430
432
432

Monday 6

Waning Gibbous 76%

00:58

08:42

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 OK
12 OK
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 OK
21 OK

Sun - Rise: 06:20, Set: 19:32, Transit: 12:56. Moon - Rise: 00:58, Set: 08:42. Civil Dark: 20:03 - 05:49. Nautical Dark: 20:40 - 05:12. Astro Dark: 21:20 - 04:32

Total Clouds (% Sky Obscured)

93
96
99
91
93
99
100
99
98
97
99
100
100
33
10
87
92
96
100
97
93
69
33
17

Low Clouds (% Sky Obscured)

63
46
27
36
40
33
35
50
65
81
87
89
92
33
10
82
68
67
70
44
28
12
8
4

Medium Clouds (% Sky Obscured)

90
94
98
88
77
85
94
89
96
73
65
50
56
33
10
47
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)

4
9
9
4
4
1
0
1
1
1
5
9
9
9
9
9
9
8
7
6
7
8
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 (%)

2
0
0
1
7
22
10
21
24
9
5
6
8
7
7
1
3
4
2
8
10
10
9
6

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
5
4
4
4
5
7
8
9
9
9
10
10
10
10
10
10
11
11
11
10
9
8
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
94
94
96
94
90
87
83
83
78
72
68
59
55
53
50
51
53
55
60
66
72
75

Pressure (mb)

1015
1016
1016
1017
1017
1018
1018
1019
1020
1021
1022
1023
1023
1024
1024
1024
1024
1025
1026
1026
1027
1028
1029
1030

Ozone (du)

429
420
420
424
424
429
431
435
440
444
443
440
438
441
446
450
455
462
470
477
474
471
468
468

Tuesday 7

Waning Gibbous 67%

01:54

09:32

22 Good
23 Good
00 Good
01 Good
02 Good
03 OK
04 OK
05 Bad
06 OK
07 OK
08 OK
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

Sun - Rise: 06:18, Set: 19:33, Transit: 12:56. Moon - Rise: 01:54, Set: 09:32. Civil Dark: 20:04 - 05:47. Nautical Dark: 20:42 - 05:10. Astro Dark: 21:22 - 04:30

Total Clouds (% Sky Obscured)

4
3
6
8
18
28
38
47
38
38
46
60
76
83
91
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
22
62
68
75
78
84
92
86
87
89
86
75

Medium Clouds (% Sky Obscured)

0
3
5
8
17
27
35
44
38
38
24
14
11
8
8
9
15
22
28
55
80
100
96
92

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
1
11
21
51
59
83
84
68
46
23
31
43

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
Snow
Snow
Snow

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
1
3
0
1
1
0
1
0
0
9
23
39
47
53

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

6
6
5
4
3
3
3
3
4
4
5
6
8
9
9
10
10
10
10
11
10
10
10
11

Chance of Frost

Temperature (°C)

-12
-12
-12
-13
-13
-13
-13
-13
-12
-11
-10
-8
-6
-4
-3
-2
-2
-1
-1
-1
-2
-3
-3
-3

Feels Like (°C)

-17
-16
-16
-16
-16
-15
-15
-15
-15
-15
-16
-11
-11
-11
-10
-11
-10
-6
-6
-6
-6
-6
-6
-8

Dew Point (°C)

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

Relative Humidity (%)

76
78
79
81
83
84
84
86
83
81
80
70
63
55
55
53
52
52
53
53
57
62
66
68

Pressure (mb)

1031
1032
1032
1033
1033
1033
1033
1034
1034
1034
1034
1034
1033
1032
1031
1030
1029
1028
1028
1027
1026
1026
1026
1025

Ozone (du)

467
466
461
457
452
440
429
418
417
417
416
415
413
412
409
405
402
399
396
393
390
387
384
380

Wednesday 8

Waning Gibbous 57%

02:40

10:31

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
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 06:16, Set: 19:35, Transit: 12:56. Moon - Rise: 02:40, Set: 10:31. Civil Dark: 20:06 - 05:45. Nautical Dark: 20:44 - 05:08. Astro Dark: 21:24 - 04:28

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
99
98
93
88
89
89
100
100
100
100

Low Clouds (% Sky Obscured)

68
70
72
74
82
91
99
89
79
71
77
81
86
80
74
65
58
43
34
35
34
35

Medium Clouds (% Sky Obscured)

88
92
95
97
96
95
95
96
95
94
92
90
90
88
87
86
89
89
100
80
61
42

High Clouds (% Sky Obscured)

56
60
74
92
91
95
90
93
93
92
75
50
10
5
4
19
55
77
95
97
98
100

ISS Passover

Visibility (miles)

9
9
9
9
9
6
3
0
1
2
3
2
2
2
1
1
0
3
6
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

Precipitation Type

Snow
Snow
Snow
None
Snow
Snow
Snow
Snow
Snow
None
Snow
Snow
Snow
Snow
Snow
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

64
56
48
34
47
55
64
56
45
35
45
55
69
72
68
58
58
56
57
52
38
20

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-7
-8
-7
-7
-7
-5
-4
-2
-3
-2
-3
-2
-1
0
1
2
3
3
2
2
1
1

Relative Humidity (%)

69
71
72
71
71
78
84
94
87
83
78
81
88
93
94
96
96
93
88
85
82
82

Pressure (mb)

1024
1023
1023
1022
1021
1020
1019
1018
1018
1018
1017
1017
1016
1016
1015
1015
1014
1015
1015
1015
1016
1017

Ozone (du)

377
373
372
371
370
369
367
366
363
360
357
356
355
354
355
356
356
357
357
358
358
359

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

Generated: 02/04/26 22:24:23. Forecast: 02/04/26 to 08/04/26. Timezone: UTC-4.00