Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 22

Waxing Crescent 16%

09:16

21:13

05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
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 OK
01 OK
02 OK
03 OK
04 Bad

Sun - Rise: 07:24, Set: 16:47, Transit: 12:06. Moon - Rise: 09:16, Set: 21:13. Civil Dark: 17:19 - 06:52. Nautical Dark: 17:56 - 06:16. Astro Dark: 18:31 - 05:41

Total Clouds (% Sky Obscured)

100
99
100
59
55
68
42
34
63
72
73
69
78
95
59
41
58
72
47
37
29
30
30
85

Low Clouds (% Sky Obscured)

98
93
100
59
44
41
33
6
28
72
49
64
78
93
48
28
49
68
41
29
27
15
15
11

Medium Clouds (% Sky Obscured)

100
99
90
17
34
49
23
27
56
72
70
69
51
15
4
0
0
0
0
25
7
0
0
70

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)

1
3
9
9
9
9
9
9
9
9
9
9
9
1
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

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

Precipitation Probability (%)

51
48
57
25
6
3
4
4
6
19
25
33
34
38
37
28
19
20
8
5
3
1
3
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-9
-9
-8
-9
-8
-7
-8
-7
-7
-7
-8
-8
-8
-10
-9
-11
-13
-13
-15
-15
-15
-15
-17
-17

Dew Point (°C)

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

Relative Humidity (%)

89
84
83
76
79
79
79
79
78
76
74
72
75
82
90
87
79
79
77
77
75
77
77
78

Pressure (mb)

1008
1007
1007
1008
1009
1009
1009
1009
1009
1008
1009
1009
1010
1011
1012
1012
1013
1013
1013
1014
1015
1015
1015
1016

Ozone (du)

423
429
446
444
441
431
436
449
449
451
451
443
442
445
443
449
442
437
433
440
444
444
446
446

Friday 23

Waxing Crescent 25%

09:34

22:26

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

Sun - Rise: 07:23, Set: 16:49, Transit: 12:06. Moon - Rise: 09:34, Set: 22:26. Civil Dark: 17:21 - 06:51. Nautical Dark: 17:57 - 06:15. Astro Dark: 18:32 - 05:40

Total Clouds (% Sky Obscured)

80
98
99
99
100
100
100
96
73
55
65
100
55
39
26
27
30
48
39
18
8
9
9
8

Low Clouds (% Sky Obscured)

20
84
89
97
99
98
100
91
25
25
47
100
35
39
26
13
13
21
13
4
1
2
1
2

Medium Clouds (% Sky Obscured)

48
66
68
70
100
61
61
55
62
49
38
47
7
8
0
0
3
13
1
1
1
1
1
1

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
8
2
4
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
2
19
10
8
3
5
2
1
2
15
2
1
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)

7
8
7
7
8
8
10
10
12
13
14
14
13
13
13
14
14
14
13
13
13
12
12
11

Chance of Frost

Temperature (°C)

-12
-12
-13
-13
-13
-13
-13
-13
-13
-13
-14
-15
-17
-18
-18
-18
-19
-20
-21
-22
-23
-23
-24
-24

Feels Like (°C)

-15
-17
-17
-18
-18
-17
-18
-18
-18
-19
-20
-22
-23
-24
-23
-24
-25
-26
-28
-28
-28
-28
-29
-29

Dew Point (°C)

-14
-15
-15
-15
-15
-16
-16
-16
-17
-18
-19
-21
-22
-22
-23
-23
-24
-26
-26
-27
-27
-28
-28
-29

Relative Humidity (%)

81
83
83
86
83
78
73
73
67
68
67
64
65
65
64
64
64
60
62
61
62
62
62
63

Pressure (mb)

1015
1016
1016
1017
1017
1017
1018
1018
1018
1019
1020
1021
1022
1024
1025
1026
1028
1029
1030
1031
1032
1033
1034
1034

Ozone (du)

435
419
403
396
393
396
397
398
419
450
469
461
457
459
453
449
442
438
438
436
432
425
414
402

Saturday 24

Waxing Crescent 36%

09:52

23:42

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

Sun - Rise: 07:22, Set: 16:50, Transit: 12:06. Moon - Rise: 09:52, Set: 23:42. Civil Dark: 17:22 - 06:50. Nautical Dark: 17:58 - 06:14. Astro Dark: 18:33 - 05:39

Total Clouds (% Sky Obscured)

7
5
3
2
2
1
8
29
24
25
25
22
21
22
9
1
1
2
2
3
2
2
2
20

Low Clouds (% Sky Obscured)

2
1
1
1
1
0
4
8
10
10
5
4
4
4
3
0
0
1
1
1
1
1
1
1

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
19

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
1
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)

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

Chance of Frost

Temperature (°C)

-24
-25
-25
-25
-25
-24
-23
-22
-22
-21
-21
-21
-21
-21
-22
-22
-22
-22
-22
-23
-23
-23
-23
-24

Feels Like (°C)

-29
-29
-29
-30
-29
-29
-28
-28
-28
-27
-27
-27
-27
-27
-27
-26
-25
-25
-25
-25
-25
-25
-25
-25

Dew Point (°C)

-29
-29
-29
-29
-29
-29
-28
-27
-27
-26
-25
-25
-25
-25
-25
-26
-26
-26
-26
-26
-26
-26
-27
-27

Relative Humidity (%)

65
64
65
64
64
61
60
60
61
61
63
66
68
68
68
69
69
70
72
73
73
72
72
73

Pressure (mb)

1035
1036
1037
1038
1039
1039
1040
1039
1039
1039
1039
1039
1039
1040
1040
1040
1040
1040
1040
1041
1041
1041
1041
1041

Ozone (du)

383
375
381
376
361
344
341
339
338
336
338
335
332
330
333
334
337
333
332
332
331
328
326
327

Sunday 25

First Quarter 47%

10:13

01:00

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
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 07:21, Set: 16:51, Transit: 12:06. Moon - Rise: 10:13, Set: 01:00. Civil Dark: 17:23 - 06:49. Nautical Dark: 17:59 - 06:13. Astro Dark: 18:34 - 05:38

Total Clouds (% Sky Obscured)

44
82
83
87
91
94
97
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

1
1
1
2
18
22
30
30
9
4
68
65
78
85
85
85
80
86
90
98
97
96
95
95

Medium Clouds (% Sky Obscured)

0
0
3
5
40
60
80
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99

High Clouds (% Sky Obscured)

44
81
82
87
90
94
97
100
100
100
100
100
100
100
100
100
100
100
100
100
68
33
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
3
4
1
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

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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
24
31
43
58
69
75
73

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.4
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-24
-24
-24
-23
-23
-22
-21
-20
-20
-19
-19
-19
-19
-19
-19
-19
-19
-19
-19
-19
-19
-19
-19
-19

Feels Like (°C)

-25
-26
-27
-27
-27
-26
-25
-25
-24
-24
-24
-23
-24
-24
-24
-25
-25
-25
-24
-24
-24
-24
-25
-25

Dew Point (°C)

-27
-27
-27
-27
-26
-26
-25
-25
-24
-24
-23
-23
-23
-23
-23
-23
-23
-23
-22
-22
-22
-21
-21
-21

Relative Humidity (%)

73
73
72
72
70
69
68
66
68
68
69
69
72
73
74
74
74
74
75
76
78
81
82
82

Pressure (mb)

1041
1041
1041
1041
1041
1041
1040
1038
1038
1037
1036
1035
1034
1034
1033
1032
1030
1029
1028
1028
1026
1026
1024
1023

Ozone (du)

324
324
323
319
316
317
319
318
317
319
320
317
317
312
310
309
306
303
301
298
294
293
296
301

Monday 26

Waxing Gibbous 59%

10:38

02:21

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
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 07:20, Set: 16:53, Transit: 12:06. Moon - Rise: 10:38, Set: 02:21. Civil Dark: 17:25 - 06:48. Nautical Dark: 18:01 - 06:12. Astro Dark: 18:35 - 05:38

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
82
64
54
48

Low Clouds (% Sky Obscured)

94
92
91
91
92
92
94
94
94
95
97
98
98
99
97
95
94
92
91
91
82
64
54
48

Medium Clouds (% Sky Obscured)

98
96
97
98
99
100
100
100
100
100
100
100
100
99
99
100
100
98
91
82
63
47
36
39

High Clouds (% Sky Obscured)

0
0
0
0
10
10
15
20
20
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
5
7
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

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

Precipitation Probability (%)

67
65
63
66
67
63
60
62
61
57
57
55
51
47
65
56
41
40
35
28
27
25
20
23

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
11
11
11
11
11
11
11
11
11
11
11
10
9
10
9
10
10
10
10
10
9
9
9

Chance of Frost

Temperature (°C)

-18
-18
-18
-18
-17
-16
-16
-15
-14
-14
-13
-13
-13
-13
-13
-13
-14
-14
-14
-15
-15
-15
-15
-15

Feels Like (°C)

-24
-24
-24
-24
-23
-22
-21
-20
-20
-19
-19
-18
-18
-17
-18
-17
-18
-18
-18
-18
-17
-18
-17
-15

Dew Point (°C)

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

Relative Humidity (%)

83
82
82
83
83
84
82
84
83
84
83
84
84
88
86
86
86
88
86
86
86
84
82
81

Pressure (mb)

1022
1021
1020
1020
1019
1019
1018
1017
1015
1015
1014
1014
1014
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

309
315
320
320
323
324
327
329
335
345
353
359
365
369
379
385
390
396
399
402
405
403
402
400

Tuesday 27

Waxing Gibbous 70%

11:11

03:42

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
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 07:19, Set: 16:54, Transit: 12:07. Moon - Rise: 11:11, Set: 03:42. Civil Dark: 17:26 - 06:47. Nautical Dark: 18:02 - 06:12. Astro Dark: 18:37 - 05:37

Total Clouds (% Sky Obscured)

43
51
58
60
55
68
78
87
88
87
85
90
95
100
94
90
86
76
77
91
91
95
100
95

Low Clouds (% Sky Obscured)

43
51
58
60
55
68
78
80
77
74
74
79
85
91
81
71
62
46
31
16
10
5
0
0

Medium Clouds (% Sky Obscured)

42
40
42
43
40
47
53
63
67
74
74
80
91
99
78
53
28
18
10
3
2
1
0
0

High Clouds (% Sky Obscured)

1
1
1
1
1
20
43
64
38
22
5
3
1
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
6
3
0
0
0
0
0
1
1
1
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

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 (%)

25
27
25
24
22
21
18
15
17
18
17
25
30
35
35
34
31
30
28
25
28
30
31
25

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

Chance of Frost

Temperature (°C)

-15
-15
-16
-15
-15
-14
-13
-13
-11
-11
-11
-11
-11
-11
-12
-12
-13
-13
-13
-14
-14
-14
-13
-12

Feels Like (°C)

-15
-16
-17
-19
-19
-20
-20
-20
-20
-16
-17
-16
-17
-17
-17
-16
-16
-17
-17
-17
-17
-18
-18
-19

Dew Point (°C)

-17
-18
-19
-18
-18
-17
-16
-16
-14
-14
-14
-13
-13
-13
-13
-13
-14
-14
-15
-15
-15
-15
-14
-14

Relative Humidity (%)

79
77
76
77
77
77
78
78
78
80
83
85
86
88
90
90
90
90
90
88
90
88
88
86

Pressure (mb)

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

Ozone (du)

400
399
399
400
401
403
401
399
397
398
398
399
394
388
383
381
379
377
381
385
389
390
392
394

Wednesday 28

Waxing Gibbous 81%

11:55

04:56

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

Sun - Rise: 07:18, Set: 16:56, Transit: 12:07. Moon - Rise: 11:55, Set: 04:56. Civil Dark: 17:27 - 06:46. Nautical Dark: 18:03 - 06:11. Astro Dark: 18:38 - 05:36

Total Clouds (% Sky Obscured)

90
75
56
13
12
54
83
87
83
70
65
49
36
21
42
63
86
93
97
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
14
16
18
15
13
11
3
4
4
5
7
10
12

Medium Clouds (% Sky Obscured)

0
0
0
0
0
1
1
2
3
3
3
4
5
6
29
52
78
88
95
100

High Clouds (% Sky Obscured)

0
0
0
0
0
1
2
3
4
4
5
5
5
5
32
59
86
58
30
2

ISS Passover

Visibility (miles)

3
6
9
9
9
9
7
5
2
5
7
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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

19
5
6
5
1
4
6
5
7
7
4
6
5
1
1
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-18
-17
-17
-19
-20
-19
-19
-19
-18
-17
-17
-17
-17
-17
-17
-19
-19
-19
-19
-19

Dew Point (°C)

-15
-16
-16
-16
-16
-15
-15
-14
-13
-14
-14
-15
-15
-16
-17
-17
-17
-18
-18
-20

Relative Humidity (%)

84
84
84
83
83
83
83
83
81
81
81
79
81
81
81
81
82
82
83
82

Pressure (mb)

1013
1013
1013
1013
1014
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1012
1012

Ozone (du)

403
412
422
431
441
451
457
464
470
469
468
466
471
476
481
484
487
490
491
492

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

Generated: 22/01/26 04:54:43. Forecast: 22/01/26 to 28/01/26. Timezone: UTC-5.00