Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 2

Waning Gibbous 99%

21:34

06:46

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
22 Bad

Sun - Rise: 06:28, Set: 19:25, Transit: 12:57. Moon - Rise: 21:34, Set: 06:46. Civil Dark: 19:55 - 05:58. Nautical Dark: 20:31 - 05:22. Astro Dark: 21:09 - 04:44

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
93
100
91
89
85
92
100
90
83
75
44
90
100

Low Clouds (% Sky Obscured)

100
100
100
100
100
90
87
100
91
86
88
81
100
83
79
74
78
79
84
78
75
44
90
100

Medium Clouds (% Sky Obscured)

99
100
100
100
100
100
100
100
100
99
100
64
56
54
58
42
61
80
59
2
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
81
100
1
0
0
0
0
0
0
0
2
2
2
1
2

ISS Passover

Visibility (miles)

6
8
9
9
3
6
9
5
9
9
4
9
9
9
9
9
9
9
7
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light 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
None

Precipitation Probability (%)

76
92
94
95
95
95
95
95
95
95
95
65
43
39
44
26
12
33
44
41
12
7
3
5

Precipitation Amount (mm)

0.3
0.3
0.6
1.7
1.5
0.9
1.1
1.5
1.1
0.9
1.3
0.3
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

0
-1
-2
-3
-4
-3
-3
-2
-2
-2
-1
-1
1
2
4
8
10
9
11
10
10
7
6
4

Dew Point (°C)

3
3
0
-1
0
1
2
2
3
3
4
5
5
6
7
9
11
11
12
11
10
7
7
5

Relative Humidity (%)

94
96
85
79
83
86
89
88
91
89
93
94
93
93
93
95
90
87
89
86
83
77
77
73

Pressure (mb)

1027
1026
1025
1023
1022
1021
1019
1018
1017
1016
1015
1014
1014
1013
1012
1011
1011
1010
1010
1010
1011
1012
1014
1015

Ozone (du)

334
332
333
334
333
335
338
341
341
347
351
355
358
359
358
356
355
358
361
363
360
356
355
356

Friday 3

Waning Gibbous 95%

22:42

07:07

23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 OK
05 OK
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

Sun - Rise: 06:26, Set: 19:27, Transit: 12:57. Moon - Rise: 22:42, Set: 07:07. Civil Dark: 19:57 - 05:56. Nautical Dark: 20:33 - 05:20. Astro Dark: 21:11 - 04:42

Total Clouds (% Sky Obscured)

99
98
96
100
72
38
44
60
100
88
99
97
100
99
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

98
96
89
100
72
38
44
60
72
75
81
71
67
48
55
60
84
64
74
100
100
95
89
81

Medium Clouds (% Sky Obscured)

12
11
22
23
0
0
0
0
0
5
32
21
35
88
96
100
100
99
100
100
89
93
83
93

High Clouds (% Sky Obscured)

2
0
0
0
1
3
2
9
30
29
35
68
96
83
94
100
100
100
100
100
90
100
100
64

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
7
5
8
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
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

3
18
4
1
0
0
0
0
0
0
0
0
0
0
0
0
12
27
95
95
95
73
93
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2.2
0.3
0.3
0.6
0.8

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
81
82
71
71
72
72
70
73
72
70
69
66
55
49
51
49
53
59
79
90
94
93
81

Pressure (mb)

1016
1018
1019
1021
1022
1023
1025
1026
1027
1028
1028
1028
1028
1027
1026
1025
1024
1023
1022
1019
1018
1017
1015
1013

Ozone (du)

358
358
359
356
352
350
347
347
348
352
352
355
357
354
348
348
350
344
340
339
340
339
339
339

Saturday 4

Waning Gibbous 90%

No Rise

07:33

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
22 Bad

Sun - Rise: 06:25, Set: 19:28, Transit: 12:56. Moon - Rise: No Rise, Set: 07:33. Civil Dark: 19:58 - 05:54. Nautical Dark: 20:34 - 05:18. Astro Dark: 21:12 - 04:40

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

70
73
66
75
91
90
93
100
100
100
100
95
100
87
75
79
74
81
82
92
65
77
89
100

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
68
100
49
45
49
47
54
69
76
79
82
70

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
80
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
2
5
6
2
4
6
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

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

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
92
68
54
35
36
21
17
29
29
35
48
40
23
19
26

Precipitation Amount (mm)

0.8
0.8
0.8
0.8
1.9
2.3
1.5
1.1
0.8
0.6
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

20
22
24
24
25
20
18
17
15
10
10
11
12
13
14
13
13
15
15
14
13
13
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
75
78
81
84
87
90
91
91
94
90
85
82
73
71
70
78
69
71
74
65
65
69
72

Pressure (mb)

1011
1009
1007
1006
1004
1005
1004
1004
1003
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1005
1005
1006
1007
1007

Ozone (du)

338
336
336
334
336
336
337
338
341
345
345
355
365
367
365
364
369
373
373
372
371
374
382
384

Sunday 5

Waning Gibbous 84%

23:49

08:06

23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 OK
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

Sun - Rise: 06:23, Set: 19:29, Transit: 12:56. Moon - Rise: 23:49, Set: 08:06. Civil Dark: 19:59 - 05:53. Nautical Dark: 20:36 - 05:16. Astro Dark: 21:14 - 04:38

Total Clouds (% Sky Obscured)

99
97
96
92
84
76
60
44
30
47
69
100
100
100
100
93
85
78
82
84
88
75
59
49

Low Clouds (% Sky Obscured)

91
83
76
71
64
49
35
30
30
10
16
41
74
85
85
86
85
78
80
76
68
47
17
28

Medium Clouds (% Sky Obscured)

65
56
79
72
40
17
10
5
0
26
43
100
97
94
93
92
85
78
82
84
88
72
53
37

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
33
67
100
100
99
98
62
36
14
11
7
4
3
1
0

ISS Passover

Visibility (miles)

3
0
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 (%)

37
37
29
17
12
5
7
7
3
3
2
0
0
0
2
0
4
16
4
3
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)

15
13
12
12
12
12
11
11
11
11
12
11
12
12
12
12
12
12
12
11
9
7
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
91
74
73
74
76
75
75
73
69
59
54
49
45
42
42
45
48
47
47
49
55
57
58

Pressure (mb)

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

Ozone (du)

382
381
382
384
389
393
398
401
403
406
409
412
414
414
415
418
421
422
421
420
421
426
425
423

Monday 6

Waning Gibbous 76%

00:52

08:47

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 OK
21 OK
22 Good

Sun - Rise: 06:21, Set: 19:30, Transit: 12:56. Moon - Rise: 00:52, Set: 08:47. Civil Dark: 20:01 - 05:51. Nautical Dark: 20:37 - 05:14. Astro Dark: 21:16 - 04:35

Total Clouds (% Sky Obscured)

64
77
78
95
100
100
95
92
91
94
97
100
100
100
99
96
86
81
79
72
65
32
17
1

Low Clouds (% Sky Obscured)

4
2
1
0
0
4
9
25
30
41
50
70
81
82
86
38
34
52
47
31
22
12
3
0

Medium Clouds (% Sky Obscured)

55
74
78
95
100
100
92
88
85
91
91
99
98
95
89
58
34
9
5
3
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)

9
9
9
9
9
9
9
9
9
0
8
9
9
8
6
7
8
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
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
1
6
44
49
29
14
26
20
17
18
16
12
10
7
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

5
4
4
3
2
3
4
4
6
9
11
11
11
9
9
8
9
11
13
12
12
11
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-6
-6
-6
-6
-6
-6
-6
-6
-5
-3
-7
-8
-7
-6
-7
-8
-11
-13
-16
-15
-15
-14
-14
-15

Relative Humidity (%)

59
61
64
63
65
66
68
68
72
89
71
61
67
70
66
57
45
36
28
32
35
40
40
40

Pressure (mb)

1015
1016
1016
1016
1016
1017
1017
1018
1019
1019
1020
1021
1022
1023
1024
1024
1025
1025
1025
1026
1028
1029
1030
1031

Ozone (du)

424
424
426
429
431
432
434
431
433
434
436
437
437
438
443
445
451
458
464
462
461
459
460
460

Tuesday 7

Waning Gibbous 67%

01:47

09:37

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

Sun - Rise: 06:19, Set: 19:32, Transit: 12:55. Moon - Rise: 01:47, Set: 09:37. Civil Dark: 20:02 - 05:49. Nautical Dark: 20:39 - 05:12. Astro Dark: 21:18 - 04:33

Total Clouds (% Sky Obscured)

1
1
1
5
8
10
11
11
11
13
12
14
37
59
80
66
58
46
64
82
99
90
86
79

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
3
4
12
13
4
0
0
0
33
64
81
61
41
20

Medium Clouds (% Sky Obscured)

0
0
0
4
8
10
11
11
8
5
5
4
8
7
9
9
13
12
30
47
67
64
63
51

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
29
58
80
59
30
4
24
42
62
42
21
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
0
0
1
4
12
17
19
18

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
8
7
5
4
4
5
5
6
6
7
8
9
9
9
10
9
9
8
7
7
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

40
39
38
37
40
42
44
45
46
47
47
44
43
40
37
34
34
33
33
38
45
53
54
55

Pressure (mb)

1032
1032
1033
1033
1033
1034
1034
1034
1035
1035
1035
1035
1034
1033
1032
1032
1030
1029
1028
1028
1027
1027
1026
1025

Ozone (du)

461
455
449
443
438
433
428
424
420
416
414
412
410
407
404
402
400
399
397
393
389
385
381
378

Wednesday 8

Waning Gibbous 57%

02:34

10:36

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: 06:17, Set: 19:33, Transit: 12:55. Moon - Rise: 02:34, Set: 10:36. Civil Dark: 20:03 - 05:47. Nautical Dark: 20:40 - 05:10. Astro Dark: 21:19 - 04:31

Total Clouds (% Sky Obscured)

81
82
87
91
95
100
100
100
100
100
99
98
96
92
86
88
92
98
99
99
100

Low Clouds (% Sky Obscured)

32
44
56
60
66
75
64
58
41
49
55
54
54
50
45
45
35
30
28
29
27

Medium Clouds (% Sky Obscured)

52
60
68
74
80
86
73
61
48
54
62
71
78
85
86
88
92
97
99
98
98

High Clouds (% Sky Obscured)

20
31
44
43
44
47
57
54
72
71
66
70
84
92
86
88
92
97
98
99
100

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Probability (%)

19
18
16
22
26
26
25
21
13
18
23
24
33
42
51
67
81
95
89
76
57

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.6
0.8
0.6
0.4
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

1
1
2
2
2
2
2
3
3
4
6
7
9
10
11
11
11
11
11
11
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
54
54
54
56
57
58
58
57
55
55
54
53
59
65
73
79
84
90
87
84

Pressure (mb)

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

Ozone (du)

374
373
373
372
369
366
363
361
360
358
358
357
357
356
355
354
355
356
357
359
361

Forecast for Le Vieux-Port, Montréal, Canada (45.50,-73.57)

Generated: 02/04/26 23:07:13. Forecast: 02/04/26 to 08/04/26. Timezone: UTC-4.00