Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 2

Waning Gibbous 99%

20:28

06:44

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
18 Bad
19 Bad

Sun - Rise: 06:28, Set: 19:27, Transit: 12:58. Moon - Rise: 20:28, Set: 06:44. Civil Dark: 19:58 - 05:58. Nautical Dark: 20:33 - 05:21. Astro Dark: 21:12 - 04:42

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
92
100

Low Clouds (% Sky Obscured)

67
86
95
97
94
94
97
95
97
95
95
100
100
100
100
100
100
100
100
100
100
100
92
100

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
84
51
28
37
53
46
30
60
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
64
0
0
0
0
0
0
0
0
0
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
0
0
4

Fog (%)

0
0
0
0
0
13
11
0
0
2
4
1
6
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
95
95
95
75
43
69
68
10
10
43
11
18
20
7

Precipitation Amount (mm)

0.6
1.7
2.4
2.4
2.4
1.7
1.7
2.2
0.8
1
0.7
2.3
1.2
0.2
0
0.4
0.4
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

1032
1031
1029
1028
1027
1026
1024
1022
1021
1019
1018
1017
1016
1015
1014
1013
1012
1011
1010
1009
1009
1009
1009
1010

Ozone (du)

352
351
350
347
346
344
344
341
341
343
348
354
360
362
366
366
364
365
366
367
368
364
365
361

Friday 3

Waning Gibbous 95%

21:38

07:05

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
18 Bad
19 Bad

Sun - Rise: 06:26, Set: 19:29, Transit: 12:57. Moon - Rise: 21:38, Set: 07:05. Civil Dark: 19:59 - 05:56. Nautical Dark: 20:35 - 05:19. Astro Dark: 21:13 - 04:40

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
95
85
89
83
87
98
94
100
100
98
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
94
85
88
82
87
97
94
72
82
74
57
40
35
56
66
76
89
93

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
14
46
56
62
78
96
100
100
100
100
100
100

High Clouds (% Sky Obscured)

0
1
0
0
2
3
4
0
0
34
60
3
6
71
75
89
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

0
0
0
0
9
9
9
8
7
9
8
7
9
9
9
9
9
9
9
5
2
1
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
None
None
Snow
Ice pellet
Frozen rai
Frozen rai

Precipitation Probability (%)

2
5
16
7
1
0
0
0
0
1
0
1
0
0
0
0
0
0
1
24
42
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
0
0.1
0.8
1.9
3.8

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
98
96
89
87
87
87
91
91
92
90
89
82
79
81
83
84
83
86
88
94
96
96

Pressure (mb)

1011
1013
1015
1017
1019
1021
1023
1024
1025
1026
1027
1028
1029
1029
1029
1029
1028
1027
1026
1026
1025
1024
1022
1020

Ozone (du)

360
359
359
356
355
352
352
356
358
359
365
368
368
366
362
364
365
362
359
356
353
350
344
342

Saturday 4

Waning Gibbous 90%

22:48

07:30

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
18 Bad
19 Bad

Sun - Rise: 06:24, Set: 19:30, Transit: 12:57. Moon - Rise: 22:48, Set: 07:30. Civil Dark: N/A - 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
97
83
96
98
100
94
86
78

Low Clouds (% Sky Obscured)

93
94
93
98
95
93
93
90
97
92
86
85
98
100
100
98
97
83
93
97
100
94
86
78

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
98
100
100
100
100
100
100
26
55
0
0
12
26
39
25
12
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
9
9
8
9
2
2
2
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

Frozen rai
Frozen rai
Moderate Rain
Moderate Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
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
77
32
13
19
26
27
30
30
36
36
35
27

Precipitation Amount (mm)

2.8
4
5.2
5.1
2.2
2
4
2
1.3
1.7
2
1.4
0.3
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

16
17
17
18
14
12
11
10
9
8
7
6
5
6
10
10
11
11
14
13
13
12
12
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
98
98
100
98
100
98
100
98
100
100
100
100
98
96
88
85
80
82
86
93
96
96

Pressure (mb)

1018
1016
1014
1011
1010
1008
1006
1005
1005
1004
1004
1003
1003
1003
1002
1002
1002
1002
1002
1002
1002
1002
1003
1004

Ozone (du)

341
342
345
342
342
340
340
340
342
342
345
350
354
364
369
372
372
374
386
388
387
388
389
389

Sunday 5

Waning Gibbous 84%

23:55

08:02

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
18 Bad
19 Bad

Sun - Rise: 06:22, Set: 19:31, 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)

79
85
89
90
93
95
97
97
97
98
99
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

79
85
89
83
86
84
96
94
94
96
94
94
94
95
97
98
97
97
97
96
95
89
90
88

Medium Clouds (% Sky Obscured)

17
32
48
50
79
78
55
75
86
89
93
97
58
49
40
40
35
35
35
35
53
97
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
26
52
100
100
100
100
81
63
55

ISS Passover

Visibility (miles)

8
1
0
0
1
1
1
7
8
8
4
5
9
9
9
9
9
9
4
5
3
3
5
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
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 (%)

20
42
38
27
26
22
21
12
12
10
11
12
10
8
4
6
7
19
2
24
22
22
28
20

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-5
-5
-7
-7
-8
-9
-9
-10
-10
-11
-12
-11
-11
-12
-10
-9
-8
-7
-7
-6
-7
-7
-8
-9

Dew Point (°C)

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

Relative Humidity (%)

89
92
96
92
92
92
91
85
85
85
84
84
84
76
72
65
62
58
56
60
64
66
73
79

Pressure (mb)

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

Ozone (du)

390
392
394
391
388
389
393
394
398
398
400
405
411
415
416
417
417
415
415
415
417
421
425
427

Monday 6

Waning Gibbous 76%

00:58

08:42

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
18 Bad
19 OK

Sun - Rise: 06:21, Set: 19:33, 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)

100
100
100
100
100
100
100
100
99
88
93
98
89
80
72
81
90
98
94
90
86
66
46
25

Low Clouds (% Sky Obscured)

80
68
60
52
61
69
72
74
79
74
80
88
83
76
69
75
79
84
82
80
82
66
46
21

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
93
57
62
67
66
59
48
28
13
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

56
63
12
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

1
0
5
9
7
5
1
1
2
5
4
7
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 (%)

22
18
4
15
7
16
20
19
4
1
2
1
5
5
5
3
2
0
1
2
1
6
9
10

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-7
-7
-8
-9
-9
-10
-10
-10
-11
-12
-13
-13
-15
-15
-16
-17
-17
-17
-17
-18
-17
-18
-17
-16

Relative Humidity (%)

87
90
85
82
83
83
87
87
85
85
83
83
73
66
59
53
49
45
41
42
43
43
50
59

Pressure (mb)

1014
1015
1015
1016
1017
1017
1018
1018
1019
1020
1021
1022
1023
1023
1024
1024
1025
1025
1025
1025
1025
1026
1027
1028

Ozone (du)

429
434
434
433
427
421
419
421
424
429
431
435
439
439
439
439
444
448
453
460
467
474
469
464

Tuesday 7

Waning Gibbous 67%

01:54

09:32

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

Sun - Rise: 06:19, Set: 19:34, 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)

15
7
0
3
5
8
18
29
39
49
61
43
47
48
52
66
82
100
99
99
98
98
98
99

Low Clouds (% Sky Obscured)

8
4
0
0
0
0
0
0
0
0
0
0
0
0
21
39
45
55
63
67
82
85
90
95

Medium Clouds (% Sky Obscured)

0
0
0
3
5
8
17
27
35
44
51
30
8
1
2
2
1
1
2
3
8
40
71
98

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
4
1
3
6
9
30
47
61

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
Snow

Precipitation Probability (%)

8
5
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
9
23
39

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
0.1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-12
-15
-15
-15
-15
-15
-15
-15
-14
-14
-14
-15
-15
-11
-11
-11
-10
-10
-10
-6
-6
-6
-6
-6

Dew Point (°C)

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

Relative Humidity (%)

68
69
72
73
75
76
76
78
79
81
76
73
71
61
55
49
47
46
45
45
45
44
48
54

Pressure (mb)

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

Ozone (du)

458
454
450
446
450
453
456
445
434
424
421
417
414
411
408
404
402
399
396
394
393
391
388
385

Wednesday 8

Waning Gibbous 57%

02:41

10:31

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

Sun - Rise: 06:17, Set: 19:35, 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)

99
99
99
99
99
100
100
100
100
100
99
99
99
100
100
99
98
98

Low Clouds (% Sky Obscured)

87
79
76
75
72
67
77
87
97
93
88
82
83
83
84
78
74
69

Medium Clouds (% Sky Obscured)

95
91
87
91
95
100
98
97
96
85
75
64
73
81
90
89
89
93

High Clouds (% Sky Obscured)

64
67
70
66
61
42
37
30
36
43
56
69
45
23
5
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
6
3
0
0
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

Precipitation Type

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

Precipitation Probability (%)

46
52
58
52
44
36
47
56
64
65
68
73
76
78
79
82
82
80

Precipitation Amount (mm)

0.2
0.2
0.3
0.2
0.1
0
0.1
0.2
0.3
0.3
0.4
0.5
0.5
0.5
0.5
0.5
0.5
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-10
-9
-9
-9
-10
-9
-9
-7
-5
-2
-2
-1
-1
1
2
2
3
3

Relative Humidity (%)

59
59
60
62
59
59
59
69
79
92
92
92
94
94
94
96
96
96

Pressure (mb)

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

Ozone (du)

382
380
378
376
374
372
369
369
368
367
366
366
365
364
364
363
367
371

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

Generated: 02/04/26 20:29:36. Forecast: 02/04/26 to 08/04/26. Timezone: UTC-4.00