Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 18

New Moon 0%

07:01

18:53

07 OK
08 Good
09 Good
10 Good
11 Good
12 OK
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

Sun - Rise: 06:55, Set: 19:03, Transit: 13:00. Moon - Rise: 07:01, Set: 18:53. Civil Dark: 19:32 - 06:25. Nautical Dark: 20:07 - 05:50. Astro Dark: 20:43 - 05:14

Total Clouds (% Sky Obscured)

34
4
5
13
10
48
92
98
99
100
100
100
100
100
94
95
97
100
100
98
92
98
99
100

Low Clouds (% Sky Obscured)

9
4
5
5
6
35
32
45
51
64
52
20
16
12
27
30
30
71
50
33
14
52
73
73

Medium Clouds (% Sky Obscured)

0
0
0
0
0
9
42
55
75
100
100
100
100
100
94
95
97
100
95
95
92
96
99
99

High Clouds (% Sky Obscured)

0
0
3
4
4
4
7
6
3
37
30
2
5
22
0
1
21
72
87
65
59
26
6
6

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
1
2

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
6
7
7
7
7
7
7
6
6
6
6
6
6
5
5
7
7
7
7
7
6
6

Chance of Frost

Temperature (°C)

-14
-14
-13
-12
-10
-9
-8
-7
-6
-5
-5
-5
-5
-5
-5
-5
-6
-6
-6
-6
-6
-6
-6
-6

Feels Like (°C)

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

Dew Point (°C)

-20
-20
-21
-21
-19
-18
-17
-16
-15
-15
-15
-14
-12
-11
-12
-12
-12
-12
-12
-12
-12
-11
-11
-11

Relative Humidity (%)

59
57
53
50
48
49
47
45
47
46
47
50
57
62
59
59
61
62
62
65
66
69
69
69

Pressure (mb)

1027
1028
1029
1030
1031
1031
1030
1030
1029
1029
1029
1029
1030
1030
1030
1030
1029
1029
1028
1027
1026
1026
1025
1025

Ozone (du)

453
446
443
441
442
439
432
427
425
417
412
405
401
396
390
390
393
396
394
394
397
398
402
404

Thursday 19

Waxing Crescent 1%

07:01

20:10

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

Sun - Rise: 06:53, Set: 19:04, Transit: 12:59. Moon - Rise: 07:01, Set: 20:10. Civil Dark: 19:34 - 06:23. Nautical Dark: 20:09 - 05:48. Astro Dark: 20:45 - 05:12

Total Clouds (% Sky Obscured)

99
98
96
96
94
98
95
94
95
96
96
98
98
96
94
90
92
97
73
71
95
100
100
97

Low Clouds (% Sky Obscured)

70
75
78
80
83
84
85
85
84
84
83
81
85
83
81
78
84
92
44
41
46
14
16
10

Medium Clouds (% Sky Obscured)

98
94
93
94
89
95
87
86
85
59
59
63
67
62
53
36
30
19
15
39
82
100
100
96

High Clouds (% Sky Obscured)

60
13
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
73
40
12
48
85
96

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
0
0
0
1
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
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

4
4
4
4
6
22
16
16
15
14
21
45
45
40
41
17
12
16
9
3
1
1
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-10
-9
-9
-7
-7
-7
-6
-6
-5
-4
-3
-3
-3
-3
-4
-4
-5
-5
-4
-4
-4
-5
-4
-5

Dew Point (°C)

-11
-11
-12
-11
-8
-7
-6
-8
-8
-8
-7
-2
0
1
0
-1
-1
-2
-2
-2
-1
-2
-2
-3

Relative Humidity (%)

69
65
56
52
57
61
62
54
51
51
53
78
98
100
98
94
89
83
86
89
91
92
89
84

Pressure (mb)

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

Ozone (du)

405
407
407
410
412
415
417
418
418
418
419
420
420
420
419
417
416
415
412
409
405
401
397
394

Friday 20

Waxing Crescent 4%

07:20

21:31

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

Sun - Rise: 06:51, Set: 19:05, Transit: 12:59. Moon - Rise: 07:20, Set: 21:31. Civil Dark: 19:35 - 06:21. Nautical Dark: 20:10 - 05:46. Astro Dark: 20:46 - 05:10

Total Clouds (% Sky Obscured)

95
93
100
100
100
100
100
100
100
100
100
100
100
99
100
98
99
100
100
99
99
98
93
89

Low Clouds (% Sky Obscured)

5
17
35
57
70
81
100
74
63
62
71
89
89
82
78
86
92
87
80
77
76
73
63
50

Medium Clouds (% Sky Obscured)

92
57
100
100
100
100
100
100
100
100
99
100
100
46
50
48
52
66
73
97
94
91
85
81

High Clouds (% Sky Obscured)

90
93
100
100
100
100
100
90
100
100
70
75
1
20
17
0
0
3
8
60
65
60
60
51

ISS Passover

Visibility (miles)

9
9
9
9
8
8
8
0
0
0
0
0
0
0
0
0
4
0
0
0
0
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
Snow
None
None
Snow
Snow
None
None
None
Snow
Snow

Precipitation Probability (%)

0
0
1
23
26
42
71
66
71
77
82
74
51
31
33
13
21
41
37
23
23
34
36
39

Precipitation Amount (mm)

0
0
0
0
0
0
0.4
0.3
0.4
0.5
0.6
0.5
0.1
0
0.1
0
0
0.2
0.1
0
0
0
0.1
0.1

Wind Speed/Direction (mph)

4
4
3
3
4
5
6
3
4
4
4
4
5
5
5
6
5
6
6
5
5
4
5
5

Chance of Frost

Temperature (°C)

-1
-1
-1
0
0
1
1
0
1
1
1
0
0
0
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
80
71
67
73
70
77
91
94
96
98
100
98
98
98
98
98
96
98
96
96
96
98
98

Pressure (mb)

1018
1019
1019
1019
1018
1017
1017
1016
1015
1014
1013
1013
1013
1013
1013
1012
1012
1012
1012
1012
1011
1011
1010
1010

Ozone (du)

394
396
398
398
399
400
404
405
404
407
409
406
408
410
410
408
408
406
405
407
407
407
409
412

Saturday 21

Waxing Crescent 10%

07:43

22:54

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

Sun - Rise: 06:49, Set: 19:07, Transit: 12:59. Moon - Rise: 07:43, Set: 22:54. Civil Dark: 19:36 - 06:19. Nautical Dark: 20:12 - 05:44. Astro Dark: 20:48 - 05:08

Total Clouds (% Sky Obscured)

83
77
74
70
80
89
100
99
94
71
61
64
97
95
88
80
78
93
100
100
100
100
83
66

Low Clouds (% Sky Obscured)

40
39
38
37
36
39
38
49
33
30
14
12
9
8
9
8
8
4
5
5
6
9
7
3

Medium Clouds (% Sky Obscured)

77
72
73
32
31
39
45
45
90
40
40
45
52
68
81
71
62
91
100
100
100
100
61
44

High Clouds (% Sky Obscured)

0
0
0
0
32
63
90
57
43
0
1
3
19
15
15
14
12
15
20
15
1
1
15
10

ISS Passover

Visibility (miles)

0
0
0
0
0
0
1
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

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

Precipitation Probability (%)

64
46
45
42
43
28
13
14
26
26
11
8
7
6
5
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.4
0.1
0.1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
96
96
96
96
98
94
89
83
76
76
78
81
80
80
78
77
77
75
74
73
72
70

Pressure (mb)

1011
1011
1011
1011
1011
1010
1010
1010
1010
1010
1010
1011
1011
1012
1012
1013
1013
1013
1014
1014
1015
1015
1016
1016

Ozone (du)

413
418
423
416
415
408
410
411
411
410
406
406
401
394
397
398
401
403
406
404
400
399
402
394

Sunday 22

Waxing Crescent 18%

08:10

00:18

07 Bad
08 OK
09 OK
10 OK
11 OK
12 OK
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

Sun - Rise: 06:47, Set: 19:08, Transit: 12:59. Moon - Rise: 08:10, Set: 00:18. Civil Dark: 19:38 - 06:17. Nautical Dark: 20:13 - 05:42. Astro Dark: 20:49 - 05:06

Total Clouds (% Sky Obscured)

50
38
34
35
35
40
55
64
70
85
85
90
90
85
85
85
80
75
70
65
40
35
35
35

Low Clouds (% Sky Obscured)

0
1
1
0
0
0
0
0
0
3
29
36
64
64
79
79
80
75
70
65
40
35
35
35

Medium Clouds (% Sky Obscured)

25
23
24
20
3
25
31
48
60
65
60
60
60
60
55
50
35
40
45
50
40
35
35
35

High Clouds (% Sky Obscured)

15
15
15
16
20
25
25
25
30
30
30
30
35
40
40
35
25
25
30
30
30
35
35
30

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
8
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
2
7
11
13
18
20
17
23
25
22
18
13

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
62
58
53
51
48
45
44
44
45
46
53
59
60
62
66
70
69
69
69
66
64
62
61

Pressure (mb)

1017
1018
1018
1019
1019
1019
1019
1018
1018
1018
1018
1019
1019
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

391
382
375
370
365
361
359
362
356
346
341
336
335
333
334
335
336
335
334
333
335
336
337
337

Monday 23

Waxing Crescent 29%

08:47

01:37

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

Sun - Rise: 06:45, Set: 19:09, Transit: 12:58. Moon - Rise: 08:47, Set: 01:37. Civil Dark: 19:39 - 06:15. Nautical Dark: 20:14 - 05:40. Astro Dark: 20:51 - 05:03

Total Clouds (% Sky Obscured)

35
40
40
45
73
85
98
98
99
100
100
100
100
99
98
97
99
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

35
40
40
45
69
78
97
98
99
100
95
94
90
88
85
81
69
57
48
46
38
35
36
29

Medium Clouds (% Sky Obscured)

35
40
30
25
20
20
20
32
39
57
76
90
100
99
98
97
99
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

20
13
7
0
0
0
0
0
0
0
0
1
3
3
4
2
19
34
25
10
2
0
0
0

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 (%)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-12
-12
-12
-12
-12
-12
-12
-12
-11
-11
-11
-10
-10
-10
-10
-11
-11
-11
-11
-11
-12
-12
-12
-12

Relative Humidity (%)

60
58
55
52
49
48
45
43
43
44
43
46
50
54
54
56
57
58
57
58
59
61
62
60

Pressure (mb)

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

Ozone (du)

338
338
339
339
339
341
343
346
346
347
348
355
363
371
376
381
386
390
394
398
402
407
412
414

Tuesday 24

Waxing Crescent 40%

09:35

02:46

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

Sun - Rise: 06:43, Set: 19:11, Transit: 12:58. Moon - Rise: 09:35, Set: 02:46. Civil Dark: 19:41 - 06:13. Nautical Dark: 20:16 - 05:38. Astro Dark: 20:53 - 05:01

Total Clouds (% Sky Obscured)

100
80
56
35
23
12
1
8
15
22
24
18
30
42
49
55
59
61
62

Low Clouds (% Sky Obscured)

22
13
7
0
0
0
0
0
0
0
1
2
4
8
13
20
14
8
2

Medium Clouds (% Sky Obscured)

100
80
56
33
19
8
1
8
15
22
24
18
20
21
16
9
22
37
55

High Clouds (% Sky Obscured)

0
0
1
1
1
1
0
3
7
18
20
13
0
0
0
0
2
2
3

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-11
-12
-13
-13
-12
-12
-12
-12
-4
-4
-3
-3
-3
-2
-4
-4
-4
-5
-5

Dew Point (°C)

-13
-14
-14
-15
-16
-16
-16
-16
-15
-14
-13
-12
-10
-9
-8
-8
-7
-7
-7

Relative Humidity (%)

57
56
51
44
40
37
34
32
33
34
34
40
47
55
58
63
68
68
67

Pressure (mb)

1026
1026
1027
1027
1028
1028
1027
1027
1027
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026

Ozone (du)

417
419
420
421
421
421
421
421
423
425
427
428
429
430
434
437
440
442
444

Forecast for Sorel-Tracy, Montérégie, Canada (46.04,-73.11)

Generated: 18/03/26 07:13:58. Forecast: 18/03/26 to 24/03/26. Timezone: UTC-4.00