Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 28

Waxing Gibbous 83%

15:42

05:15

21 Bad
22 Bad
23 OK
00 OK
01 Bad
02 Bad
03 Bad
04 OK
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 OK
18 Bad
19 Bad
20 Bad

Sun - Rise: 06:36, Set: 19:17, Transit: 12:56. Moon - Rise: 15:42, Set: 05:15. Civil Dark: 19:47 - 06:06. Nautical Dark: 20:23 - 05:30. Astro Dark: N/A - 04:52

Total Clouds (% Sky Obscured)

72
66
46
30
85
98
91
46
52
65
63
96
98
96
95
97
89
81
84
81
39
91
80
93

Low Clouds (% Sky Obscured)

56
28
2
23
73
86
62
2
12
47
47
60
77
78
79
76
69
71
55
47
35
40
32
15

Medium Clouds (% Sky Obscured)

39
32
19
10
25
54
42
35
35
47
46
50
45
42
44
42
32
38
33
34
0
50
50
52

High Clouds (% Sky Obscured)

4
4
4
15
4
0
0
0
0
0
2
0
0
0
1
0
0
0
0
0
0
38
40
84

ISS Passover

Visibility (miles)

9
9
9
9
9
8
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 (%)

1
0
0
1
8
18
13
2
0
1
1
2
4
7
9
8
5
2
3
2
1
1
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
85
85
84
84
85
81
82
84
85
87
85
81
76
72
71
73
69
63
61
59
63
65
69

Pressure (mb)

1028
1028
1028
1028
1028
1027
1028
1028
1028
1028
1028
1029
1029
1029
1028
1027
1027
1026
1024
1023
1023
1022
1022
1022

Ozone (du)

479
473
470
473
472
470
459
450
441
438
441
442
442
445
448
450
451
449
447
443
441
437
431
424

Sunday 29

Waxing Gibbous 91%

16:55

05:35

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
20 Bad

Sun - Rise: 06:34, Set: 19:19, Transit: 12:56. Moon - Rise: 16:55, Set: 05:35. Civil Dark: 19:49 - 06:04. Nautical Dark: 20:25 - 05:28. Astro Dark: 21:01 - 04:50

Total Clouds (% Sky Obscured)

82
100
100
100
100
100
100
100
100
91
95
82
82
95
86
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

1
2
2
1
24
54
84
73
20
25
30
30
30
30
30
41
20
20
20
20
20
17
24
61

Medium Clouds (% Sky Obscured)

75
100
100
100
100
100
100
100
100
88
77
47
51
85
66
74
15
64
100
100
100
100
100
100

High Clouds (% Sky Obscured)

39
76
95
100
43
70
70
70
70
1
26
56
82
79
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
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
2
20
26
20
10
33
21
16
9
3
4
4
23
19
23
10
7
5
11
23

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)

6
7
7
8
8
9
8
8
8
7
7
8
9
11
13
15
16
15
14
12
10
7
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
81
81
84
81
84
84
86
83
83
84
83
80
79
71
66
69
81
87
90
91
93
94
94

Pressure (mb)

1022
1022
1021
1021
1020
1019
1019
1018
1018
1017
1017
1016
1015
1014
1013
1012
1011
1011
1011
1011
1012
1012
1013
1013

Ozone (du)

420
419
418
416
416
417
418
418
419
423
426
422
419
416
414
408
404
404
403
401
398
397
394
392

Monday 30

Waxing Gibbous 96%

18:06

05:52

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
20 Bad

Sun - Rise: 06:32, Set: 19:20, Transit: 12:56. Moon - Rise: 18:06, Set: 05:52. Civil Dark: 19:50 - 06:02. Nautical Dark: 20:26 - 05:25. Astro Dark: 21:02 - 04:48

Total Clouds (% Sky Obscured)

100
100
100
100
96
100
97
91
100
100
98
100
100
99
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

72
64
53
65
82
89
81
89
100
100
91
87
92
98
100
91
100
100
100
100
100
100
100
99

Medium Clouds (% Sky Obscured)

100
100
93
92
95
99
95
88
64
100
97
100
99
96
85
64
67
77
83
87
83
86
66
98

High Clouds (% Sky Obscured)

100
77
100
100
70
71
70
20
60
99
93
96
86
84
66
69
55
75
89
100
100
100
99
98

ISS Passover

Visibility (miles)

9
9
9
9
9
9
6
9
2
0
0
0
0
0
0
0
0
0
4
9
9
9
4
4

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

Precipitation Probability (%)

32
25
34
42
40
64
75
61
60
95
95
95
95
86
47
42
31
26
42
43
68
92
95
95

Precipitation Amount (mm)

0
0
0
0
0
0.2
0.5
0.3
0.2
0.7
3.9
2.2
0.7
0.3
0
0.1
0
0
0
0
0.2
0.5
0.5
1.6

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
93
91
89
91
91
91
93
96
100
98
100
100
98
98
100
100
100
98
98
98
98
96
92

Pressure (mb)

1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1015
1014
1013
1012
1011
1011
1010
1009

Ozone (du)

393
390
387
383
379
379
379
381
378
378
378
375
375
373
374
373
375
373
369
366
364
363
363
361

Tuesday 31

Waxing Gibbous 99%

19:15

06:08

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 OK
15 Bad
16 Bad
17 Bad
18 Bad
19 OK
20 OK

Sun - Rise: 06:30, Set: 19:21, Transit: 12:56. Moon - Rise: 19:15, Set: 06:08. Civil Dark: 19:51 - 06:00. Nautical Dark: 20:28 - 05:23. Astro Dark: 21:04 - 04:46

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
97
94
92
78
63
45
33
29
30
40
40
40
30

Low Clouds (% Sky Obscured)

98
97
98
99
100
100
100
100
100
100
100
96
94
92
78
63
45
33
29
30
40
40
40
18

Medium Clouds (% Sky Obscured)

98
77
76
56
58
87
43
85
80
94
100
94
41
40
29
17
0
0
13
0
0
0
0
0

High Clouds (% Sky Obscured)

96
89
77
61
48
67
81
100
100
100
100
72
43
15
15
15
20
15
15
15
15
10
15
12

ISS Passover

Visibility (miles)

8
1
0
1
1
1
8
2
1
0
1
2
7
9
9
9
9
9
9
9
3
1
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
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Very Light Rain
Very Light Rain
Frozen rai
Frozen rai
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
95
94
66
71
95
95
95
95
49
22
15
14
19
5
3
8
17
7
17
1
1

Precipitation Amount (mm)

0.9
1.6
2
0.7
0.6
0.3
0.3
0.9
2.4
0.8
0.6
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

14
16
16
16
15
13
12
12
13
12
12
11
13
13
13
13
12
12
11
10
9
9
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-5
-7
-7
-7
-7
-6
-5
-5
-6
-6
-6
-6
-6
-5
-5
-4
-4
-4
-4
-3
-3
-3
-4
-4

Dew Point (°C)

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

Relative Humidity (%)

94
98
96
96
96
96
98
96
98
98
96
96
96
94
98
96
96
94
92
93
93
96
96
96

Pressure (mb)

1008
1007
1007
1006
1006
1005
1005
1005
1005
1006
1008
1009
1011
1013
1014
1015
1017
1018
1020
1021
1022
1023
1025
1026

Ozone (du)

362
362
362
363
363
360
358
358
356
353
354
355
357
356
357
358
359
360
361
364
366
367
369
367

Wednesday 1

Full Moon 100%

20:24

06:25

21 OK
22 Good
23 OK
00 Bad
01 Good
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

Sun - Rise: 06:28, Set: 19:23, Transit: 12:55. Moon - Rise: 20:24, Set: 06:25. Civil Dark: 19:53 - 05:58. Nautical Dark: 20:29 - 05:21. Astro Dark: 21:06 - 04:43

Total Clouds (% Sky Obscured)

23
10
33
35
10
65
70
85
85
90
90
87
88
90
91
94
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

10
3
14
13
4
3
4
3
4
4
3
3
4
4
14
23
33
45
60
81
86
86
85
80

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
6
43
47
52
54
57
52
58
64
78
89
100
100
100
100
100

High Clouds (% Sky Obscured)

2
1
5
21
1
25
30
30
31
32
38
42
42
37
51
76
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
8
4
9
9
9
9
7
9
9
9
9
9
9
9
8
8
6
4
2
1
1
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
Snow
Snow
Snow

Precipitation Probability (%)

0
1
1
0
1
0
0
0
0
0
0
0
0
0
0
1
2
13
20
27
41
53
63
76

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
0.2
0.3
0.4

Wind Speed/Direction (mph)

6
7
8
8
7
7
8
9
8
8
8
9
9
9
9
8
8
8
8
8
8
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
94
96
96
96
94
89
92
94
92
92
90
89
87
86
86
84
84
87
89
92
94
96
94

Pressure (mb)

1028
1029
1030
1031
1032
1032
1033
1034
1035
1036
1037
1038
1038
1038
1039
1038
1038
1038
1037
1037
1036
1036
1036
1036

Ozone (du)

365
367
366
365
366
366
365
364
364
362
361
359
358
356
355
353
351
349
348
346
345
345
345
345

Thursday 2

Waning Gibbous 99%

No Rise

06:43

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
20 Bad

Sun - Rise: 06:26, Set: 19:24, Transit: 12:55. Moon - Rise: No Rise, Set: 06:43. Civil Dark: 19:54 - 05:56. Nautical Dark: 20:31 - 05:19. Astro Dark: 21:07 - 04:41

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
100
100

Low Clouds (% Sky Obscured)

75
65
60
54
55
68
84
100
100
100
100
99
99
98
96
94
92
91
92
91
87
84
82
84

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99
98
96
94
92
64
36
8
5

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
93
77
65
51
52
77
62
42
16
12
8
4
8

ISS Passover

Visibility (miles)

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

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
Snow
Snow
Snow
Snow
Snow
Ice pellet
Ice pellet
Ice pellet
Ice pellet
Ice pellet
Ice pellet
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Frozen rai
Frozen rai

Precipitation Probability (%)

87
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
86
88
88
86
76

Precipitation Amount (mm)

0.5
0.6
0.8
1.1
1.4
1.8
2.2
2.6
2.6
2.5
2.3
2.4
2.5
2.6
2.6
2.5
2.2
1.5
1
0.4
0.5
0.5
0.5
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-6
-6
-6
-6
-5
-6
-5

Dew Point (°C)

-2
-2
-2
-2
-1
-1
-1
-1
-1
-1
-1
-2
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-2

Relative Humidity (%)

96
96
94
96
98
96
98
98
98
98
98
94
96
96
98
94
94
94
94
94
94
94
96
94

Pressure (mb)

1036
1035
1034
1033
1032
1031
1031
1030
1030
1029
1028
1028
1027
1027
1026
1026
1025
1024
1024
1024
1023
1024
1025
1026

Ozone (du)

345
346
346
346
345
345
345
344
344
345
346
347
348
348
348
354
360
366
362
359
356
356
356
356

Friday 3

Waning Gibbous 95%

21:34

07:04

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: 06:24, Set: 19:25, Transit: 12:55. Moon - Rise: 21:34, Set: 07:04. Civil Dark: 19:56 - 05:54. Nautical Dark: 20:32 - 05:17. Astro Dark: 21:09 - 04:39

Total Clouds (% Sky Obscured)

99
98
96
95
92
93
92
90
92
97
95
96
98
100
100
100
100

Low Clouds (% Sky Obscured)

83
82
80
78
75
69
62
64
70
76
83
89
94
100
100
100
100

Medium Clouds (% Sky Obscured)

6
7
9
6
0
0
0
0
0
0
0
0
0
0
2
2
3

High Clouds (% Sky Obscured)

11
15
36
57
74
68
61
40
20
0
0
0
4
4
47
77
93

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

64
50
43
37
31
25
22
20
15
15
13
15
16
16
16
16
15

Precipitation Amount (mm)

0.3
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

1026
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1026
1025
1024

Ozone (du)

354
353
352
349
347
344
344
344
344
345
346
348
346
344
342
342
342

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

Generated: 28/03/26 21:14:05. Forecast: 28/03/26 to 03/04/26. Timezone: UTC-4.00