Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 4

Waning Gibbous 90%

22:48

07:30

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
16 Bad
17 Bad

Sun - Rise: 06:24, Set: 19:29, Transit: 12:57. Moon - Rise: 22:48, Set: 07:30. Civil Dark: 19:59 - 05:54. Nautical Dark: 20:36 - 05:17. Astro Dark: 21:15 - 04:37

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
94
79
92
100

Low Clouds (% Sky Obscured)

87
95
100
94
100
100
96
94
93
96
97
99
100
100
100
92
72
69
89
98
93
79
92
100

Medium Clouds (% Sky Obscured)

100
100
100
95
95
100
100
100
100
100
100
100
100
100
100
100
100
28
0
0
0
0
0
28

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
70
65
19
0
0

ISS Passover

Visibility (miles)

0
0
0
0
0
9
3
0
1
0
0
0
0
0
0
3
9
9
9
4
8
9
5
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

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

Precipitation Probability (%)

95
95
95
38
35
95
95
95
95
95
95
95
95
95
68
39
7
6
22
30
34
30
33
29

Precipitation Amount (mm)

1.3
2
0.8
0
0
0.8
2.3
2
3.1
3
0.9
1.7
0.8
0.8
0.3
0
0
0
0
0
0.1
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
96
96
96
96
92
94
98
96
96
98
98
98
98
100
98
93
83
79
79
80
77
79
82

Pressure (mb)

1024
1023
1020
1019
1017
1014
1012
1010
1008
1006
1006
1005
1004
1003
1003
1002
1002
1003
1002
1002
1002
1002
1002
1002

Ozone (du)

342
338
339
341
340
338
339
338
337
337
338
340
341
342
342
346
345
346
351
354
359
365
363
363

Sunday 5

Waning Gibbous 84%

23:55

08:02

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
16 Bad
17 Bad

Sun - Rise: 06:22, Set: 19:30, Transit: 12:57. Moon - Rise: 23:55, Set: 08:02. Civil Dark: 20:01 - 05:52. Nautical Dark: 20:38 - 05:14. Astro Dark: 21:17 - 04:35

Total Clouds (% Sky Obscured)

100
92
90
95
94
99
100
99
100
83
95
94
100
100
100
100
100
100
100
100
93
93
92
87

Low Clouds (% Sky Obscured)

90
77
83
87
82
79
82
78
80
82
93
89
98
86
83
75
74
73
64
62
78
87
83
81

Medium Clouds (% Sky Obscured)

59
33
33
50
51
97
93
88
80
25
35
54
100
100
100
100
100
100
100
99
65
39
30
30

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
4
35
59
79
80
80
90
89
59

ISS Passover

Visibility (miles)

2
3
5
1
1
0
1
1
1
4
9
2
7
9
8
9
9
9
5
5
5
5
7
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
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

27
27
30
40
39
32
23
27
19
11
18
3
6
3
0
1
1
16
4
16
7
14
7
15

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

12
10
10
9
10
11
11
11
11
12
12
12
12
11
11
12
13
12
12
12
12
12
12
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-3
-4
-4
-5
-6
-7
-8
-9
-10
-11
-11
-12
-13
-12
-13
-12
-12
-11
-10
-10
-8
-8
-8
-8

Dew Point (°C)

-1
-1
-1
-1
-2
-2
-4
-5
-6
-7
-7
-8
-9
-9
-10
-11
-12
-13
-11
-10
-9
-9
-9
-9

Relative Humidity (%)

82
88
91
94
94
96
91
89
89
85
84
85
83
82
79
71
63
57
62
60
58
57
57
58

Pressure (mb)

1002
1003
1004
1004
1004
1005
1005
1006
1006
1007
1008
1008
1009
1010
1011
1012
1012
1012
1012
1012
1012
1012
1012
1013

Ozone (du)

362
365
366
367
374
380
382
385
388
386
390
393
396
400
402
405
406
406
406
404
409
410
410
416

Monday 6

Waning Gibbous 76%

00:58

08:42

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 Good
11 Good
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 06:21, Set: 19:31, Transit: 12:57. Moon - Rise: 00:58, Set: 08:42. Civil Dark: 20:02 - 05:50. Nautical Dark: 20:39 - 05:12. Astro Dark: 21:19 - 04:33

Total Clouds (% Sky Obscured)

82
78
75
57
69
96
79
94
93
100
100
85
79
78
89
24
17
13
58
89
87
83
74
71

Low Clouds (% Sky Obscured)

70
59
52
26
27
26
49
52
14
12
10
10
41
45
67
24
17
13
58
74
73
81
74
71

Medium Clouds (% Sky Obscured)

30
54
54
35
49
88
52
74
72
98
100
68
40
35
38
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

60
21
5
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
6
4
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 (%)

11
3
0
0
0
13
1
2
1
1
4
4
7
3
2
1
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)

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

Chance of Frost

Temperature (°C)

-3
-4
-6
-6
-7
-8
-9
-9
-10
-11
-12
-12
-13
-13
-13
-12
-11
-10
-9
-8
-7
-7
-7
-7

Feels Like (°C)

-8
-9
-10
-11
-12
-12
-13
-14
-15
-15
-17
-17
-18
-19
-19
-18
-16
-14
-13
-13
-13
-13
-13
-14

Dew Point (°C)

-9
-9
-10
-11
-11
-11
-12
-13
-14
-14
-16
-16
-17
-18
-19
-20
-20
-20
-21
-20
-20
-20
-20
-19

Relative Humidity (%)

63
68
69
69
73
77
78
74
75
75
73
72
67
65
60
51
46
42
39
37
34
34
35
37

Pressure (mb)

1014
1014
1015
1016
1017
1017
1017
1018
1019
1020
1020
1021
1022
1023
1024
1024
1025
1025
1025
1025
1025
1025
1025
1026

Ozone (du)

417
416
424
432
433
428
430
433
434
434
435
436
437
440
445
445
443
450
456
456
466
466
462
454

Tuesday 7

Waning Gibbous 67%

01:54

09:32

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

Sun - Rise: 06:19, Set: 19:33, Transit: 12:56. Moon - Rise: 01:54, Set: 09:32. Civil Dark: 20:04 - 05:48. Nautical Dark: 20:41 - 05:10. Astro Dark: 21:21 - 04:30

Total Clouds (% Sky Obscured)

69
68
41
25
10
7
3
2
3
4
6
6
60
60
70
82
88
92
96
96
49
96
95
93

Low Clouds (% Sky Obscured)

69
68
23
14
8
7
2
2
3
4
6
5
4
4
4
70
88
92
95
60
9
63
50
58

Medium Clouds (% Sky Obscured)

1
1
1
1
1
2
0
0
0
0
0
0
0
40
48
64
75
85
43
84
36
90
92
88

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
5
5
5
15
15
25
7
4
2
14
3
10

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)

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

Chance of Frost

Temperature (°C)

-8
-9
-9
-10
-10
-11
-11
-10
-11
-10
-11
-11
-11
-10
-9
-7
-5
-3
-2
-1
0
1
1
1

Feels Like (°C)

-13
-14
-15
-14
-14
-14
-14
-13
-14
-13
-14
-13
-13
-14
-13
-12
-9
-9
-8
-7
-5
-4
-5
-5

Dew Point (°C)

-18
-18
-17
-17
-16
-16
-15
-15
-15
-14
-14
-14
-13
-13
-13
-12
-11
-10
-11
-12
-11
-11
-11
-11

Relative Humidity (%)

42
47
53
57
62
66
69
70
70
72
75
78
80
78
72
68
62
57
49
44
41
40
41
43

Pressure (mb)

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

Ozone (du)

449
447
448
451
450
444
435
426
421
416
418
415
415
415
411
407
404
402
400
401
400
397
394
390

Wednesday 8

Waning Gibbous 57%

02:41

10:31

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
16 Bad
17 Bad

Sun - Rise: 06:17, Set: 19:34, Transit: 12:56. Moon - Rise: 02:41, Set: 10:31. Civil Dark: 20:05 - 05:46. Nautical Dark: 20:42 - 05:08. Astro Dark: 21:22 - 04:28

Total Clouds (% Sky Obscured)

91
80
92
96
98
98
98
98
99
96
64
54
93
98
99
100
100
100
100
100
100
100
100
98

Low Clouds (% Sky Obscured)

80
40
48
38
25
18
36
12
20
45
4
7
9
26
35
44
51
61
70
80
86
92
100
98

Medium Clouds (% Sky Obscured)

86
73
82
92
98
93
83
76
94
78
59
50
77
41
63
81
97
94
92
92
95
97
99
92

High Clouds (% Sky Obscured)

3
4
40
6
3
63
78
88
92
61
64
48
74
68
76
83
87
65
46
31
52
77
100
68

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
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
3
0
4
2
2
3
7
8
5
3
1
10
14
12
40
52
63
71
72
71
74

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.4
0.3
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-10
-9
-8
-8
-8
-8
-7
-7
-7
-7
-6
-5
-4
-3
-3
-1
0
1
2
2
3
4
4
5

Relative Humidity (%)

47
52
64
64
65
65
63
66
62
62
65
69
71
74
74
74
75
73
76
79
83
86
90
93

Pressure (mb)

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

Ozone (du)

390
390
386
386
386
382
382
379
377
375
371
367
366
364
363
365
366
367
368
368
368
368
367
366

Thursday 9

Waning Gibbous 48%

03:18

11:38

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
16 Bad
17 Bad

Sun - Rise: 06:15, Set: 19:35, Transit: 12:56. Moon - Rise: 03:18, Set: 11:38. Civil Dark: 20:06 - 05:44. Nautical Dark: 20:44 - 05:06. Astro Dark: 21:24 - 04:25

Total Clouds (% Sky Obscured)

95
91
88
85
82
81
80
78
83
88
93
89
85
52
51
42
33
43
59
77
84
91
98
80

Low Clouds (% Sky Obscured)

94
89
80
71
63
68
73
78
81
84
87
82
78
52
51
42
33
43
59
77
81
76
65
57

Medium Clouds (% Sky Obscured)

85
78
69
58
47
32
16
1
6
12
16
20
23
13
2
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

36
0
0
0
0
0
3
8
11
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
8
6
3
0
2
4
6
7
8
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

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

Precipitation Probability (%)

67
49
68
84
95
84
63
24
18
11
0
1
1
0
2
6
0
1
1
0
1
1
0
0

Precipitation Amount (mm)

0.3
0
0.3
0.5
0.8
0.5
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
94
96
98
98
98
94
92
89
87
87
86
84
81
78
72
67
64
64
64
65
68
69
72

Pressure (mb)

1018
1018
1019
1019
1020
1021
1021
1022
1023
1023
1024
1025
1026
1027
1027
1028
1028
1028
1028
1028
1028
1028
1028
1028

Ozone (du)

366
365
365
366
368
370
372
375
378
379
381
382
384
386
388
386
384
382
382
383
383
381
378
375

Friday 10

Third Quarter 37%

03:47

12:48

18 Bad
19 OK
20 Bad
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

Sun - Rise: 06:13, Set: 19:37, Transit: 12:56. Moon - Rise: 03:47, Set: 12:48. Civil Dark: 20:08 - 05:42. Nautical Dark: 20:46 - 05:04. Astro Dark: 21:26 - 04:23

Total Clouds (% Sky Obscured)

63
46
43
39
36
54
72
80
80
85
85
80
80
90
90
95
95
95
95
95

Low Clouds (% Sky Obscured)

52
46
42
36
24
27
43
61
62
64
60
55
55
50
50
45
45
45
50
50

Medium Clouds (% Sky Obscured)

0
0
0
1
1
7
9
10
12
18
20
20
20
20
25
30
45
62
62
60

High Clouds (% Sky Obscured)

1
1
8
15
22
45
67
65
45
25
25
15
10
5
0
0
5
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
17
24
29
59
83
95
95
95
95
90
68
31

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.2
0.5
0.7
0.8
0.8
0.7
0.5
0.3
0

Wind Speed/Direction (mph)

6
5
5
5
5
5
5
5
5
5
5
5
6
6
6
5
5
5
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
84
92
91
89
87
89
89
91
91
92
92
94
96
96
98
98
98
98
98

Pressure (mb)

1029
1029
1030
1030
1030
1030
1029
1029
1029
1028
1028
1027
1027
1027
1026
1026
1026
1025
1025
1025

Ozone (du)

370
365
360
357
353
349
349
348
347
345
342
340
338
336
334
334
334
335
334
334

Forecast for Lac-Saint-Louis, Lanaudière, Canada (46.57,-73.80)

Generated: 04/04/26 18:15:29. Forecast: 04/04/26 to 10/04/26. Timezone: UTC-4.00