Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 9

Waning Gibbous 59%

02:10

10:04

11 Bad
12 Bad
13 Bad
14 OK
15 OK
16 OK
17 Good
18 Good
19 OK
20 OK
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: 07:15, Set: 18:53, Transit: 13:05. Moon - Rise: 02:10, Set: 10:04. Civil Dark: 19:23 - 06:45. Nautical Dark: 19:58 - 06:10. Astro Dark: 20:33 - 05:35

Total Clouds (% Sky Obscured)

89
87
79
23
26
27
5
11
25
40
86
94
79
80
78
93
100
98
100
90
100
48
49
76

Low Clouds (% Sky Obscured)

18
9
1
1
1
0
0
0
0
0
0
0
0
9
21
27
30
49
51
42
5
4
26
68

Medium Clouds (% Sky Obscured)

28
32
12
2
16
15
3
2
0
8
16
50
52
46
42
55
96
98
100
88
100
48
26
31

High Clouds (% Sky Obscured)

74
87
79
23
0
0
0
11
25
40
56
64
46
35
1
0
0
3
7
6
0
0
4
3

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
1
5
6
13
1
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)

11
12
14
16
16
16
17
16
15
15
15
14
15
13
12
10
7
3
2
4
3
3
4
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
82
78
76
74
73
72
73
74
73
77
81
81
87
86
93
91
93
96
91
94
91
83
76

Pressure (mb)

1006
1005
1004
1003
1003
1002
1003
1003
1004
1005
1006
1006
1008
1008
1009
1011
1012
1013
1014
1015
1015
1016
1016
1017

Ozone (du)

325
325
327
329
341
344
342
343
339
336
333
333
335
336
336
339
339
339
340
339
338
337
335
332

Tuesday 10

Waning Gibbous 50%

03:10

10:48

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: 07:13, Set: 18:54, Transit: 13:05. Moon - Rise: 03:10, Set: 10:48. Civil Dark: 19:24 - 06:43. Nautical Dark: 19:59 - 06:08. Astro Dark: 20:35 - 05:33

Total Clouds (% Sky Obscured)

93
98
90
99
100
99
96
100
100
97
95
99
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

86
90
90
79
89
84
86
84
70
64
54
83
80
86
88
83
89
90
100
98
100
100
93
92

Medium Clouds (% Sky Obscured)

41
61
40
49
60
65
56
47
52
61
89
92
91
98
100
96
76
94
100
100
100
100
98
99

High Clouds (% Sky Obscured)

3
1
0
0
60
36
3
13
55
65
69
52
100
100
63
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
6
9
9
9
9
9
9
9
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
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

0
1
16
6
5
5
2
3
0
0
4
19
18
4
6
9
8
19
42
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
0.1
1.4
3.8
2.9
2.4
2.3

Wind Speed/Direction (mph)

4
4
4
3
5
5
6
6
7
8
8
9
9
8
8
8
8
9
9
10
11
12
12
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

0
0
1
0
1
0
-1
-2
-2
-4
-5
-7
-8
-9
-8
-9
-10
-11
-11
-11
-12
-13
-12
-13

Dew Point (°C)

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

Relative Humidity (%)

74
72
69
71
73
75
67
72
73
75
80
79
82
76
79
81
77
76
70
67
85
90
90
89

Pressure (mb)

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

Ozone (du)

330
329
330
329
329
329
328
327
323
322
323
327
329
331
331
331
333
332
332
335
337
337
335
337

Wednesday 11

Third Quarter 40%

04:03

No Set

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: 07:11, Set: 18:56, Transit: 13:04. Moon - Rise: 04:03, Set: No Set. Civil Dark: 19:26 - 06:41. Nautical Dark: 20:01 - 06:06. Astro Dark: 20:36 - 05:31

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
100
99
95
89
78

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
94
100
96
91
100
100
100
100
100
100
96
100
98
91
88
78

Medium Clouds (% Sky Obscured)

97
99
100
100
100
100
100
100
100
100
100
97
89
84
67
86
78
35
25
7
4
1
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
45
40
36
24
50
45
45

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
2
2
8
2
0
0
0
0
1
1
1
1
4

Fog (%)

0
0
0
0
1
1
0
1
2
2
21
22
0
26
6
8
8
8
8
8
8
8
8
8

Precipitation Type

Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
95
95
31
43
49
57
26
39
25
22
27
23
24
17

Precipitation Amount (mm)

2
0.7
1.2
1.7
1.7
2.6
2.9
2.5
2.2
2.7
3.3
0.9
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

13
13
14
14
13
13
11
9
8
7
6
3
3
2
3
5
8
10
12
14
14
13
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-12
-12
-11
-12
-12
-12
-11
-11
-10
-9
-8
-6
-6
-5
-4
-2
-3
-5
-7
-9
-11
-12
-14
-14

Dew Point (°C)

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

Relative Humidity (%)

90
89
90
90
90
90
92
92
92
92
92
94
96
98
100
100
100
100
98
94
89
87
87
85

Pressure (mb)

1015
1014
1013
1011
1008
1007
1005
1003
1001
1000
997
996
995
994
994
993
993
994
995
996
997
999
1000
1002

Ozone (du)

335
335
335
338
338
338
337
341
342
343
342
342
341
339
338
338
339
338
342
343
348
353
353
353

Thursday 12

Waning Crescent 30%

04:46

11:42

11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 OK
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: 07:09, Set: 18:57, Transit: 13:04. Moon - Rise: 04:46, Set: 11:42. Civil Dark: 19:27 - 06:39. Nautical Dark: 20:02 - 06:04. Astro Dark: 20:38 - 05:28

Total Clouds (% Sky Obscured)

74
70
69
60
53
44
39
39
38
46
61
64
75
85
91
84
76
59
44
88
55
32
54
64

Low Clouds (% Sky Obscured)

74
70
69
60
53
44
39
39
38
46
61
64
75
82
84
83
76
59
44
85
45
11
35
44

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
5
10
15
23
32
43
29
14
3
3
64
25
12
23
50

High Clouds (% Sky Obscured)

50
40
15
20
20
25
39
39
38
0
0
0
0
0
0
0
0
0
0
0
0
27
54
64

ISS Passover

Visibility (miles)

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

Fog (%)

8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8

Precipitation Type

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

Precipitation Probability (%)

25
28
33
36
39
33
22
3
0
0
0
14
1
1
1
0
0
0
0
1
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
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)

14
14
14
14
14
14
14
13
12
12
11
11
11
10
10
9
8
7
6
5
4
3
3
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-11
-12
-12
-12
-11
-11
-12
-13
-13
-13
-14
-14
-14
-15
-16
-17
-17
-18
-18
-19
-19
-19
-18
-17

Relative Humidity (%)

83
78
80
80
82
82
78
77
77
80
81
83
84
83
83
82
82
81
81
80
80
82
77
73

Pressure (mb)

1003
1004
1004
1005
1006
1007
1008
1009
1011
1013
1014
1015
1016
1017
1017
1018
1019
1019
1020
1020
1020
1020
1019
1019

Ozone (du)

355
358
362
363
365
368
371
373
375
384
387
405
415
423
429
432
432
438
443
449
450
450
454
454

Friday 13

Waning Crescent 21%

05:20

12:46

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: 07:07, Set: 18:58, Transit: 13:04. Moon - Rise: 05:20, Set: 12:46. Civil Dark: 19:28 - 06:37. Nautical Dark: 20:04 - 06:02. Astro Dark: 20:39 - 05:26

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

77
73
94
95
97
100
100
100
100
99
100
100
99
100
96
76
76
78
79
87
95
92
89
85

Medium Clouds (% Sky Obscured)

66
89
94
93
100
100
100
100
100
100
88
100
100
100
100
77
74
78
80
85
90
78
55
32

High Clouds (% Sky Obscured)

99
100
100
80
70
60
66
61
61
58
66
65
65
65
65
60
70
75
44
26
7
11
7
5

ISS Passover

Visibility (miles)

9
9
9
5
2
0
1
0
0
0
1
2
1
0
0
0
0
0
0
0
1
1
1
0

Fog (%)

8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8

Precipitation Type

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

Precipitation Probability (%)

0
0
0
36
54
62
78
92
95
95
89
94
85
73
67
50
51
51
46
40
36
33
28
23

Precipitation Amount (mm)

0
0
0
0.1
0.2
0.3
0.4
0.6
0.8
0.7
0.5
0.7
0.6
0.4
0.4
0.2
0.2
0.2
0.2
0.1
0
0
0
0

Wind Speed/Direction (mph)

4
4
4
6
7
7
8
7
7
8
7
7
7
8
9
10
9
9
10
10
10
10
10
10

Chance of Frost

Temperature (°C)

-11
-10
-9
-8
-8
-8
-9
-9
-9
-9
-10
-9
-9
-9
-9
-9
-10
-10
-10
-10
-11
-11
-10
-9

Feels Like (°C)

-14
-13
-12
-12
-12
-13
-13
-13
-13
-14
-14
-14
-13
-14
-14
-15
-15
-15
-16
-16
-16
-17
-16
-16

Dew Point (°C)

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

Relative Humidity (%)

72
71
72
72
77
85
85
88
92
90
90
88
88
88
88
88
88
88
88
88
88
88
88
87

Pressure (mb)

1018
1017
1016
1014
1013
1012
1011
1010
1009
1008
1007
1006
1005
1005
1004
1004
1006
1006
1006
1007
1007
1008
1009
1010

Ozone (du)

452
451
452
457
460
466
470
472
468
464
464
469
469
467
464
463
468
474
480
478
476
475
477
479

Saturday 14

Waning Crescent 13%

05:47

13:56

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: 07:05, Set: 19:00, Transit: 13:04. Moon - Rise: 05:47, Set: 13:56. Civil Dark: 19:30 - 06:35. Nautical Dark: 20:05 - 06:00. Astro Dark: 20:41 - 05:24

Total Clouds (% Sky Obscured)

87
81
76
61
47
33
28
50
55
57
53
48
61
71
75
79
84
88
92
96
100
100
100
100

Low Clouds (% Sky Obscured)

81
77
73
59
44
29
20
10
0
0
0
18
48
52
56
55
54
52
35
18
18
3
8
1

Medium Clouds (% Sky Obscured)

23
14
5
5
5
10
12
22
22
21
14
2
2
1
0
0
1
1
6
16
51
72
85
94

High Clouds (% Sky Obscured)

5
10
25
49
47
33
28
18
0
0
0
0
0
0
0
16
43
64
52
34
15
40
70
90

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
1
1
1
2
2
3
3
3
3
3
3
3
5
7
9
9
9

Fog (%)

8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8

Precipitation Type

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

Precipitation Probability (%)

26
29
32
35
38
41
41
40
39
34
26
8
5
3
0
0
3
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
11
11
11
10
9
8
8
8
8
7
6
5
5
4
4
3
3
3
2
3
3
3
3

Chance of Frost

Temperature (°C)

-8
-7
-7
-7
-7
-6
-6
-7
-8
-9
-11
-12
-14
-14
-15
-16
-17
-16
-17
-17
-17
-16
-13
-11

Feels Like (°C)

-16
-15
-15
-15
-11
-11
-11
-11
-11
-11
-14
-14
-14
-14
-14
-14
-20
-19
-19
-21
-22
-23
-19
-18

Dew Point (°C)

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

Relative Humidity (%)

87
87
85
85
87
87
87
89
90
90
90
90
90
88
86
86
85
83
84
84
85
84
81
76

Pressure (mb)

1011
1012
1013
1014
1015
1016
1017
1019
1020
1021
1022
1024
1025
1025
1026
1027
1027
1028
1028
1029
1029
1029
1029
1029

Ozone (du)

481
484
487
490
497
503
509
505
500
496
490
485
480
466
451
437
431
426
420
417
415
412
410
408

Sunday 15

Waning Crescent 13%

06:09

15:09

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

Sun - Rise: 07:04, Set: 19:01, Transit: 13:03. Moon - Rise: 06:09, Set: 15:09. Civil Dark: 19:31 - 06:34. Nautical Dark: 20:06 - 05:58. Astro Dark: 20:42 - 05:22

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

16
30
45
63
82
100
100
100
100
100
100
100
100
100
100
100
100
100
99
98
97

Medium Clouds (% Sky Obscured)

95
96
97
98
99
100
100
100
100
100
100
100
100
100
100
100
100
100
98
96
94

High Clouds (% Sky Obscured)

84
83
87
91
97
100
100
100
99
99
99
100
100
100
100
82
67
75
75
80
80

ISS Passover

Visibility (miles)

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

Fog (%)

8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8

Precipitation Type

None
None
None
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Frozen rai
Frozen rai
Frozen rai
Frozen rai

Precipitation Probability (%)

0
0
0
30
44
56
94
95
95
95
95
95
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0.1
0.2
0.6
1
1.5
2
2.5
3
3.7
4.5
5.2
4.5
3.8
2.8
2.1
1.4
1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-17
-17
-15
-15
-11
-12
-12
-12
-13
-13
-14
-15
-15
-15
-14
-14
-12
-13
-12
-13
-13

Dew Point (°C)

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

Relative Humidity (%)

72
74
76
77
80
87
90
90
90
92
90
90
92
92
92
94
94
94
96
96
98

Pressure (mb)

1029
1028
1027
1026
1025
1023
1022
1020
1019
1017
1014
1012
1009
1006
1004
1001
998
996
993
993
992

Ozone (du)

405
402
400
397
395
394
392
391
390
389
388
387
386
388
390
391
393
395
397
399
400

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

Generated: 09/03/26 11:12:15. Forecast: 09/03/26 to 15/03/26. Timezone: UTC-4.00