Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 28

Waxing Gibbous 94%

14:25

05:48

13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 OK
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
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 06:30, Set: 17:40, Transit: 12:06. Moon - Rise: 14:25, Set: 05:48. Civil Dark: 18:10 - 06:01. Nautical Dark: 18:44 - 05:26. Astro Dark: 19:18 - 04:52

Total Clouds (% Sky Obscured)

100
100
100
100
55
35
81
66
90
95
100
100
100
100
79
83
78
53
58
84
76
76
77
77

Low Clouds (% Sky Obscured)

66
1
0
2
3
1
2
30
44
34
18
2
7
76
10
10
10
15
43
61
66
70
71
69

Medium Clouds (% Sky Obscured)

100
100
35
45
0
2
16
48
76
88
100
100
100
100
76
82
75
46
25
50
25
3
1
0

High Clouds (% Sky Obscured)

100
100
100
100
55
35
80
28
25
18
0
18
1
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
6

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
1
0
11
0
1
0
1
1
0
0
3
0
0
0
0
0
0
0
0
0
2
12
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)

13
14
13
13
10
8
5
4
4
4
3
3
4
4
5
5
5
5
5
6
7
7
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-2
-2
-3
-3
-5
-5
-7
-9
-10
-10
-11
-11
-11
-11
-12
-13
-14
-14
-15
-16
-16
-15
-16
-15

Dew Point (°C)

4
2
0
-1
-2
-4
-5
-7
-7
-8
-9
-9
-9
-10
-10
-11
-13
-13
-13
-14
-15
-15
-15
-15

Relative Humidity (%)

100
88
83
83
81
81
87
89
89
89
88
88
88
85
83
80
78
81
81
78
75
72
70
68

Pressure (mb)

1011
1012
1013
1015
1016
1018
1019
1020
1021
1022
1022
1022
1023
1024
1024
1024
1025
1025
1026
1027
1028
1028
1028
1029

Ozone (du)

398
398
396
398
399
399
400
404
405
410
411
406
403
400
398
402
407
408
406
407
411
417
426
438

Sunday 1

Waxing Gibbous 98%

15:44

06:11

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

Sun - Rise: 06:28, Set: 17:42, Transit: 12:06. Moon - Rise: 15:44, Set: 06:11. Civil Dark: 18:11 - 05:59. Nautical Dark: 18:45 - 05:25. Astro Dark: 19:20 - 04:50

Total Clouds (% Sky Obscured)

63
79
84
75
48
34
4
3
2
3
5
3
3
2
6
6
7
7
8
7
7
7
22
41

Low Clouds (% Sky Obscured)

46
69
71
50
33
17
1
1
1
2
2
1
1
1
2
2
2
2
1
2
1
2
7
14

Medium 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

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)

5
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 (%)

1
1
1
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1

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)

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

Chance of Frost

Temperature (°C)

-10
-9
-9
-10
-10
-11
-11
-12
-13
-14
-14
-15
-15
-16
-17
-17
-17
-18
-18
-18
-17
-16
-14
-13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

66
65
68
71
71
70
73
75
74
76
76
75
75
75
75
75
76
77
78
77
76
77
75
75

Pressure (mb)

1028
1029
1029
1030
1031
1032
1033
1034
1034
1035
1035
1035
1036
1037
1037
1037
1038
1038
1039
1039
1040
1040
1040
1040

Ozone (du)

445
448
452
456
460
459
462
463
464
464
461
459
461
458
457
456
454
453
454
457
457
459
461
463

Monday 2

Waxing Gibbous 100%

17:00

06:30

13 OK
14 OK
15 OK
16 Good
17 Bad
18 OK
19 Bad
20 Bad
21 Bad
22 Bad
23 OK
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

Sun - Rise: 06:27, Set: 17:43, Transit: 12:05. Moon - Rise: 17:00, Set: 06:30. Civil Dark: 18:13 - 05:57. Nautical Dark: 18:47 - 05:23. Astro Dark: 19:21 - 04:48

Total Clouds (% Sky Obscured)

35
20
20
17
57
45
59
64
69
65
44
73
64
100
100
100
85
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

15
15
10
8
1
1
1
1
1
1
1
0
4
4
4
1
1
1
0
0
1
2
1
3

Medium Clouds (% Sky Obscured)

0
0
0
1
52
45
53
57
58
33
22
35
34
92
73
43
36
86
85
85
70
70
67
100

High Clouds (% Sky Obscured)

0
0
0
0
0
3
3
9
36
34
19
35
34
100
100
100
69
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

8
7
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 (%)

1
1
14
0
0
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
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-11
-11
-10
-10
-10
-11
-11
-12
-12
-12
-12
-12
-12
-12
-12
-12
-12
-12
-11
-9
-8
-6
-4
-3

Feels Like (°C)

-17
-16
-15
-14
-13
-13
-14
-15
-15
-16
-15
-16
-17
-17
-16
-16
-16
-16
-16
-14
-12
-11
-9
-7

Dew Point (°C)

-15
-15
-14
-13
-13
-13
-14
-14
-14
-14
-14
-14
-15
-14
-14
-14
-14
-14
-13
-12
-10
-9
-7
-6

Relative Humidity (%)

72
69
72
75
78
81
81
81
85
81
81
83
83
83
85
83
83
83
83
82
80
79
79
79

Pressure (mb)

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

Ozone (du)

461
450
439
431
424
421
420
418
416
411
407
404
403
401
398
398
398
395
388
383
380
379
377
376

Tuesday 3

Full Moon 99%

18:13

06:48

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
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 06:25, Set: 17:44, Transit: 12:05. Moon - Rise: 18:13, Set: 06:48. Civil Dark: 18:14 - 05:55. Nautical Dark: 18:48 - 05:21. Astro Dark: 19:23 - 04:47

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
93
92
87
86
83
73
61
58
51
51
64
84
100

Low Clouds (% Sky Obscured)

28
50
69
78
89
97
85
95
96
97
95
89
89
83
84
83
73
61
58
51
50
46
34
14

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
99
99
98
99
100
35
20
21
15
12
7
0
0
0
0
27
53
80

High Clouds (% Sky Obscured)

100
100
100
100
100
100
93
85
79
72
61
50
31
15
0
0
0
0
0
0
0
23
46
70

ISS Passover

Visibility (miles)

9
9
1
0
1
2
9
9
9
7
7
5
4
3
3
3
2
1
0
0
0
0
0
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 (%)

6
20
22
20
28
17
16
15
13
12
10
3
5
6
5
5
4
0
0
0
0
1
1
5

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
84
91
98
96
96
94
94
96
96
98
96
96
96
96
94
94
96
96
100
98
100
100
100

Pressure (mb)

1028
1027
1026
1025
1025
1025
1024
1024
1024
1024
1023
1024
1024
1024
1024
1025
1025
1026
1026
1027
1028
1028
1028
1028

Ozone (du)

375
371
368
370
369
371
370
373
374
376
381
384
388
390
383
377
376
376
376
377
376
373
370
370

Wednesday 4

Waning Gibbous 97%

19:24

07:05

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
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 06:23, Set: 17:46, Transit: 12:05. Moon - Rise: 19:24, Set: 07:05. Civil Dark: 18:15 - 05:53. Nautical Dark: 18:49 - 05:19. Astro Dark: 19:24 - 04:45

Total Clouds (% Sky Obscured)

80
63
60
71
87
97
89
86
90
90
90
85
92
87
93
92
89
86
67
56
30
24
37
49

Low Clouds (% Sky Obscured)

5
0
5
21
29
49
45
32
29
70
65
65
27
50
81
79
71
66
46
20
0
0
0
0

Medium Clouds (% Sky Obscured)

53
25
0
1
44
60
65
70
70
60
55
45
50
55
55
50
50
45
29
23
14
8
5
0

High Clouds (% Sky Obscured)

46
23
10
31
54
75
57
38
25
25
30
30
27
37
47
42
45
45
50
55
30
24
37
49

ISS Passover

Visibility (miles)

8
2
0
0
0
2
0
1
9
2
5
0
0
1
1
1
1
2
2
2
2
2
1
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

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

Precipitation Probability (%)

0
0
0
0
0
1
0
12
33
45
71
80
90
87
90
91
93
95
78
55
20
16
9
4

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.4
0.6
0.7
0.6
0.6
0.6
0.7
0.7
0.5
0.2
0
0
0
0

Wind Speed/Direction (mph)

5
5
4
4
4
4
3
4
4
5
5
5
4
6
8
10
10
10
10
10
9
9
9
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

1027
1027
1026
1025
1025
1025
1025
1024
1023
1022
1022
1021
1020
1021
1021
1021
1022
1023
1024
1025
1025
1026
1026
1026

Ozone (du)

365
367
368
369
371
372
372
373
371
367
365
362
359
358
358
357
358
359
361
361
361
361
358
356

Thursday 5

Waning Gibbous 92%

20:33

07:22

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
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 06:21, Set: 17:47, Transit: 12:05. Moon - Rise: 20:33, Set: 07:22. Civil Dark: 18:17 - 05:52. Nautical Dark: 18:51 - 05:17. Astro Dark: 19:25 - 04:43

Total Clouds (% Sky Obscured)

66
77
90
94
97
98
99
99
99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
5
42
60
70
70
63
54
65
78
91
94
97
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

19
36
46
37
25
13
6
3
0
5
7
10
11
17
18
17
17
21
26
35
20
5
5
5

High Clouds (% Sky Obscured)

44
38
29
39
58
68
78
84
86
79
67
56
39
25
10
16
18
25
50
73
100
96
91
87

ISS Passover

Visibility (miles)

0
0
0
0
3
6
9
9
9
9
9
9
9
9
9
9
9
9
8
8
8
7
7
7

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
Snow
Snow
Snow
Snow
Snow
Frozen rai
None
None
None

Precipitation Probability (%)

4
5
5
13
14
16
18
14
12
15
11
5
23
32
39
48
55
62
67
68
63
48
37
32

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.2
0.2
0.4
0.4
0.4
0
0
0

Wind Speed/Direction (mph)

8
8
8
9
8
8
8
8
8
8
8
8
8
8
8
9
9
8
8
8
9
9
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

100
100
100
100
98
96
94
96
94
96
92
92
91
91
91
92
92
94
94
94
94
94
94
96

Pressure (mb)

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

Ozone (du)

353
349
346
342
342
341
341
340
339
338
338
337
336
333
331
328
326
325
323
321
319
317
315
314

Friday 6

Waning Gibbous 85%

21:42

07:42

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: 06:19, Set: 17:48, Transit: 12:05. Moon - Rise: 21:42, Set: 07:42. Civil Dark: 18:18 - 05:50. Nautical Dark: 18:52 - 05:16. Astro Dark: 19:27 - 04:41

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
96
92
87

Low Clouds (% Sky Obscured)

99
97
97
98
99
100
100
100
100
100
100
100
100
100
100
93
87
81

Medium Clouds (% Sky Obscured)

15
24
34
56
79
100
99
98
98
97
97
96
96
95
90
63
32
0

High Clouds (% Sky Obscured)

91
95
100
100
100
100
100
100
100
100
100
100
100
100
100
96
92
87

ISS Passover

Visibility (miles)

7
4
2
0
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

Precipitation Type

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

Precipitation Probability (%)

74
95
95
95
95
95
95
95
95
89
69
65
72
72
68
46
25
12

Precipitation Amount (mm)

0.4
0.8
1.4
1.4
1.5
1.7
1.5
1.3
1
0.6
0.3
0.3
0.4
0.4
0.4
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

1023
1022
1020
1019
1018
1016
1015
1015
1014
1014
1013
1013
1012
1013
1013
1013
1014
1014

Ozone (du)

312
311
310
309
306
303
300
297
294
291
286
281
277
276
276
275
276
278

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

Generated: 28/02/26 13:21:06. Forecast: 28/02/26 to 06/03/26. Timezone: UTC-5.00