Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 27

Waxing Gibbous 74%

13:11

04:58

09 OK
10 OK
11 OK
12 OK
13 OK
14 Good
15 Good
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

Sun - Rise: 06:42, Set: 19:20, Transit: 13:02. Moon - Rise: 13:11, Set: 04:58. Civil Dark: 19:50 - 06:12. Nautical Dark: 20:26 - 05:36. Astro Dark: 21:03 - 04:58

Total Clouds (% Sky Obscured)

1
1
2
23
24
15
10
100
85
100
100
100
100
100
100
100
95
94
100
100
95
94
90
85

Low Clouds (% Sky Obscured)

1
1
2
23
24
15
10
30
30
35
35
25
25
25
22
22
17
23
21
19
6
15
50
44

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
1
97
56
99
100
100
100
100
100
100
64
58
100
100
75
57
74
52

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
7
7
3
9
7
6
3
5
5
5
5
7
9
9
7
5
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
4
17
4
11
1
2
1
0
10
0
0
0
0
0
0
1
3

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-23
-22
-20
-17
-17
-16
-16
-15
-16
-16
-17
-17
-18
-18
-18
-19
-19
-20
-21
-21
-21
-21
-21
-21

Dew Point (°C)

-22
-21
-20
-17
-16
-15
-14
-14
-14
-14
-14
-15
-15
-16
-16
-17
-18
-19
-20
-19
-20
-21
-21
-20

Relative Humidity (%)

72
70
72
73
72
70
72
71
72
80
81
83
84
84
86
86
84
83
81
82
82
80
80
79

Pressure (mb)

1025
1026
1026
1025
1025
1025
1024
1024
1024
1025
1025
1026
1027
1027
1028
1028
1028
1029
1029
1029
1029
1030
1030
1030

Ozone (du)

386
391
387
385
382
379
376
373
374
375
378
382
393
405
413
414
421
434
463
491
504
512
515
509

Saturday 28

Waxing Gibbous 83%

14:30

05:21

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

Sun - Rise: 06:40, Set: 19:21, Transit: 13:02. Moon - Rise: 14:30, Set: 05:21. Civil Dark: 19:51 - 06:10. Nautical Dark: 20:27 - 05:34. Astro Dark: 21:05 - 04:56

Total Clouds (% Sky Obscured)

93
93
94
89
100
85
92
90
78
97
94
37
53
58
65
81
96
96
97
96
97
94
94
97

Low Clouds (% Sky Obscured)

79
93
94
86
100
85
92
90
78
94
94
33
47
44
65
74
95
92
91
83
81
84
86
88

Medium Clouds (% Sky Obscured)

17
42
36
13
0
1
0
0
0
4
2
3
3
1
0
1
1
59
79
69
81
61
45
59

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
4
3
4
4
4
4
40
4
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
5
0
0
0
1
5
3
2
2
9
9
4
3
4
5
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
0
0
0
0
2
7

Precipitation Type

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

Precipitation Probability (%)

11
30
46
53
49
39
35
27
32
8
10
9
0
0
0
8
38
42
42
44
45
46
46
48

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-14
-12
-11
-10
-9
-8
-8
-8
-8
-8
-9
-11
-11
-11
-12
-12
-12
-11
-10
-10
-10
-10
-10
-9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
75
78
80
82
78
77
82
79
82
81
86
86
90
88
86
86
90
90
90
90
92
92
92

Pressure (mb)

1029
1029
1028
1028
1027
1027
1026
1026
1027
1027
1027
1028
1029
1029
1029
1029
1029
1027
1027
1027
1027
1027
1026
1026

Ozone (du)

500
491
486
482
484
481
484
488
487
475
472
472
471
469
464
464
463
457
449
439
429
429
432
437

Sunday 29

Waxing Gibbous 91%

15:46

05:40

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

Sun - Rise: 06:38, Set: 19:22, Transit: 13:01. Moon - Rise: 15:46, Set: 05:40. Civil Dark: 19:53 - 06:08. Nautical Dark: 20:29 - 05:32. Astro Dark: 21:07 - 04:54

Total Clouds (% Sky Obscured)

96
97
96
97
97
97
100
88
86
77
80
83
80
93
93
93
96
95
92
89
87
91
96
96

Low Clouds (% Sky Obscured)

86
89
90
92
92
88
100
71
67
46
69
68
39
44
54
59
63
51
38
47
10
16
38
77

Medium Clouds (% Sky Obscured)

55
55
61
64
62
23
0
0
0
0
0
0
25
44
75
79
85
82
75
71
76
80
85
88

High Clouds (% Sky Obscured)

0
1
0
0
0
0
0
0
0
0
0
0
0
0
2
4
35
35
35
40
48
66
82
78

ISS Passover

Visibility (miles)

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

Fog (%)

3
2
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

34
41
48
57
58
59
54
55
45
32
34
15
19
1
1
10
1
0
0
0
0
0
0
6

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-12
-11
-9
-8
-7
-6
-6
-5
-4
-4
-4
-5
-7
-7
-8
-8
-8
-9
-9
-9
-9
-9
-9
-8

Dew Point (°C)

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

Relative Humidity (%)

90
87
89
91
94
96
96
98
100
98
100
96
94
92
94
92
96
96
98
96
94
98
96
94

Pressure (mb)

1025
1025
1024
1023
1022
1021
1021
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1020
1020
1020
1020
1020
1020
1019

Ozone (du)

440
442
444
444
444
447
448
446
441
438
433
429
428
426
422
422
420
420
419
418
416
416
414
412

Monday 30

Waxing Gibbous 96%

17:00

05:57

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

Sun - Rise: 06:36, Set: 19:24, Transit: 13:01. Moon - Rise: 17:00, Set: 05:57. Civil Dark: 19:54 - 06:06. Nautical Dark: 20:30 - 05:29. Astro Dark: 21:08 - 04:51

Total Clouds (% Sky Obscured)

97
97
98
99
99
100
100
100
100
100
99
99
99
99
99
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

79
85
79
82
85
90
95
95
100
100
97
97
50
91
94
35
33
99
95
100
100
100
99
98

Medium Clouds (% Sky Obscured)

90
93
95
96
97
90
99
100
95
74
93
96
94
94
97
99
100
99
97
93
96
97
98
99

High Clouds (% Sky Obscured)

68
61
73
85
96
97
98
100
76
49
24
26
28
26
50
72
100
83
67
50
37
28
40
55

ISS Passover

Visibility (miles)

9
4
0
0
0
0
0
0
0
0
2
1
2
1
2
6
6
6
8
6
6
8
2
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
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Snow
Snow
Snow

Precipitation Probability (%)

17
33
62
68
69
63
48
23
3
2
4
0
1
1
5
8
6
14
17
19
29
45
95
95

Precipitation Amount (mm)

0
0
0.2
0.3
0.3
0.3
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.6
1.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

1019
1018
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016

Ozone (du)

409
406
404
401
399
400
401
399
397
396
393
392
391
393
393
390
387
385
380
377
374
375
371
370

Tuesday 31

Waxing Gibbous 99%

18:11

06:13

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

Sun - Rise: 06:34, Set: 19:25, Transit: 13:01. Moon - Rise: 18:11, Set: 06:13. Civil Dark: 19:55 - 06:04. Nautical Dark: 20:32 - 05:27. Astro Dark: 21:10 - 04:49

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
96
90
73
85
98
98
98
100
100

Low Clouds (% Sky Obscured)

97
96
97
98
100
100
100
100
97
92
87
85
79
69
50
32
35
35
35
40
40
17
25
24

Medium Clouds (% Sky Obscured)

99
99
92
84
75
39
73
87
88
75
62
50
41
32
22
9
3
17
31
41
53
66
73
82

High Clouds (% Sky Obscured)

60
65
56
65
65
77
88
100
88
79
62
58
49
40
25
25
15
36
60
87
92
96
100
100

ISS Passover

Visibility (miles)

0
0
0
0
0
1
3
3
3
1
0
0
0
0
0
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
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

88
81
95
95
61
33
42
51
42
43
53
63
62
56
60
61
66
82
92
95
91
86
84
92

Precipitation Amount (mm)

0.6
0.5
0.5
0.9
0.2
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.4
0.5
0.5
0.5
0.5
0.6

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
96
96
96
96
96
96
94
96
98
98
98
98
100
98
100
98
100
100
98
100
100
98
100

Pressure (mb)

1016
1016
1016
1015
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1012
1012
1012
1011
1011
1012
1012

Ozone (du)

368
367
365
365
363
360
360
358
359
358
356
353
350
347
344
344
343
342
342
342
342
343
344
345

Wednesday 1

Full Moon 100%

19:21

06:29

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

Sun - Rise: 06:32, Set: 19:26, Transit: 13:00. Moon - Rise: 19:21, Set: 06:29. Civil Dark: 19:57 - 06:02. Nautical Dark: 20:33 - 05:25. Astro Dark: 21:12 - 04:47

Total Clouds (% Sky Obscured)

100
100
100
100
100
67
33
5
10
55
60
65
90
95
100
100
100
100
100
100
99
99
98
69

Low Clouds (% Sky Obscured)

23
22
15
7
0
0
0
0
0
0
0
0
0
25
30
30
30
20
15
0
0
0
0
0

Medium Clouds (% Sky Obscured)

94
98
70
43
15
10
6
1
1
1
0
0
0
0
0
0
0
0
5
11
45
55
80
69

High Clouds (% Sky Obscured)

100
100
100
85
72
54
33
5
10
35
26
17
9
0
12
7
10
5
0
5
15
20
20
10

ISS Passover

Visibility (miles)

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

Light Rain
Light Rain
Sleet
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

93
92
77
49
4
13
17
21
22
22
22
22
23
23
18
12
9
10
6
1
6
7
7
6

Precipitation Amount (mm)

0.7
0.7
0.5
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
10
10
10
9
10
10
10
10
10
9
9
9
10
10
9
8
8
7
7
7
7
7
7

Chance of Frost

Temperature (°C)

-1
-1
-0
-1
-1
-1
-1
-2
-2
-3
-4
-5
-6
-7
-8
-9
-10
-10
-11
-11
-12
-12
-12
-12

Feels Like (°C)

-3
-3
-2
-2
-2
-2
-6
-6
-6
-7
-7
-7
-12
-12
-12
-13
-13
-13
-17
-16
-17
-17
-17
-17

Dew Point (°C)

-1
-2
-1
-1
-2
-2
-3
-4
-4
-5
-6
-7
-8
-10
-11
-11
-12
-13
-13
-14
-14
-15
-16
-16

Relative Humidity (%)

98
98
96
94
92
91
89
87
86
84
85
85
85
83
83
83
83
81
81
81
81
79
76
75

Pressure (mb)

1013
1014
1015
1016
1017
1017
1018
1019
1020
1021
1022
1023
1025
1026
1028
1029
1030
1031
1032
1033
1034
1035
1036
1036

Ozone (du)

347
349
350
352
355
357
362
368
373
380
386
393
401
410
418
412
406
400
398
396
395
397
399
402

Thursday 2

Waning Gibbous 99%

20:30

06:47

09 OK
10 Good
11 Good
12 Good
13 Good
14 Good
15 Good
16 Good
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 06:30, Set: 19:28, Transit: 13:00. Moon - Rise: 20:30, Set: 06:47. Civil Dark: 19:58 - 06:00. Nautical Dark: 20:35 - 05:23. Astro Dark: 21:13 - 04:44

Total Clouds (% Sky Obscured)

40
11
7
4
0
2
3
5
14
19
23
37
48
62
75
87
100

Low Clouds (% Sky Obscured)

0
3
3
2
0
2
3
5
14
19
23
37
48
56
47
47
42

Medium Clouds (% Sky Obscured)

40
11
7
4
0
2
3
5
14
19
23
37
48
62
53
39
36

High Clouds (% Sky Obscured)

10
11
7
4
0
2
3
5
14
19
23
37
48
62
75
87
100

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

3
0
0
0
0
0
1
1
66
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.3
0.7
1.2
1.4
1.6
1.8
1.9
2
2.3

Wind Speed/Direction (mph)

7
7
6
6
7
7
7
7
7
7
6
6
6
7
8
7
7

Chance of Frost

Temperature (°C)

-11
-9
-7
-6
-5
-3
-3
-3
-3
-4
-5
-6
-6
-6
-6
-6
-7

Feels Like (°C)

-17
-16
-15
-14
-14
-12
-6
-6
-5
-5
-5
-5
-8
-8
-7
-8
-9

Dew Point (°C)

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

Relative Humidity (%)

66
60
53
52
50
48
49
50
52
60
70
82
82
82
82
84
84

Pressure (mb)

1036
1036
1036
1036
1035
1035
1035
1034
1034
1034
1034
1035
1034
1034
1033
1033
1032

Ozone (du)

401
401
400
400
400
400
399
398
397
394
390
387
384
381
378
377
376

Forecast for Lac-Lajoie, Lanaudière, Canada (46.46,-74.31)

Generated: 27/03/26 09:23:14. Forecast: 27/03/26 to 02/04/26. Timezone: UTC-4.00