Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 15

Waning Crescent 5%

06:31

14:23

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

Sun - Rise: 07:37, Set: 16:48, Transit: 12:12. Moon - Rise: 06:31, Set: 14:23. Civil Dark: 17:20 - 07:04. Nautical Dark: 17:57 - 06:28. Astro Dark: 18:32 - 05:52

Total Clouds (% Sky Obscured)

93
94
96
86
91
71
45
46
0
1
0
0
0
0
0
6
5
27
63
100
65
97
100
100

Low Clouds (% Sky Obscured)

88
86
87
72
66
64
4
0
0
0
0
0
0
0
0
0
0
1
1
0
1
8
15
85

Medium Clouds (% Sky Obscured)

85
73
73
38
42
28
40
36
0
0
0
0
0
0
0
2
5
17
59
100
48
89
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
0
5
7
19
16
25
100
100

ISS Passover

Visibility (miles)

0
0
0
0
0
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

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

Precipitation Probability (%)

45
49
40
33
11
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
10

Precipitation Amount (mm)

0.1
0.3
0.2
0.1
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
8
8
9
9
9
9
9
8
8
7
6
5
7
7
7
6
6
5
3
2
3
3
3

Chance of Frost

Temperature (°C)

-16
-16
-16
-15
-15
-16
-17
-18
-19
-20
-20
-21
-19
-17
-16
-14
-12
-12
-12
-13
-15
-16
-17
-15

Feels Like (°C)

-22
-22
-21
-20
-21
-22
-22
-24
-24
-24
-24
-24
-22
-21
-19
-17
-16
-14
-14
-15
-18
-18
-20
-19

Dew Point (°C)

-18
-18
-18
-17
-17
-19
-20
-21
-23
-24
-25
-25
-24
-23
-21
-19
-18
-17
-16
-15
-17
-19
-19
-17

Relative Humidity (%)

86
84
84
84
82
77
75
73
70
68
64
65
66
60
61
63
64
66
70
81
84
81
81
82

Pressure (mb)

1000
1000
1001
1001
1001
1002
1003
1003
1004
1005
1006
1007
1008
1009
1010
1010
1010
1011
1011
1012
1013
1013
1014
1014

Ozone (du)

452
448
446
437
413
394
396
402
391
370
353
356
367
364
351
352
350
343
346
353
356
355
356
356

Friday 16

Waning Crescent 1%

07:17

15:25

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: 07:36, Set: 16:49, Transit: 12:13. Moon - Rise: 07:17, Set: 15:25. Civil Dark: 17:22 - 07:04. Nautical Dark: 17:58 - 06:27. Astro Dark: 18:33 - 05:52

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

91
89
88
91
91
85
86
96
86
86
89
93
92
85
82
69
77
65
64
60
61
74
73
83

Medium Clouds (% Sky Obscured)

100
100
95
94
95
91
41
38
99
100
100
94
95
95
90
90
90
95
95
98
96
96
96
100

High Clouds (% Sky Obscured)

71
65
0
0
0
0
0
2
55
56
0
0
0
0
0
0
2
24
29
10
3
4
4
4

ISS Passover

Visibility (miles)

5
1
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
1
1
2

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

Precipitation Probability (%)

55
70
69
66
58
46
37
42
44
35
29
26
43
46
48
48
47
46
42
42
37
26
24
20

Precipitation Amount (mm)

0.2
0.3
0.3
0.4
0.3
0.2
0
0.1
0.1
0
0
0
0.2
0.2
0.2
0.2
0.2
0.2
0.1
0.2
0.1
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-14
-14
-14
-14
-13
-13
-13
-12
-12
-12
-11
-11
-10
-9
-7
-6
-4
-3
-2
-1
-1
-1
-1
-1

Feels Like (°C)

-18
-18
-18
-18
-18
-18
-18
-18
-17
-16
-16
-16
-15
-13
-12
-10
-8
-7
-6
-5
-4
-4
-5
-5

Dew Point (°C)

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

Relative Humidity (%)

84
84
88
88
90
88
88
90
90
92
92
90
90
92
92
92
96
96
96
98
98
96
94
94

Pressure (mb)

1014
1014
1014
1014
1013
1013
1013
1013
1012
1012
1012
1012
1012
1013
1012
1011
1011
1010
1010
1010
1010
1010
1011
1010

Ozone (du)

351
352
354
358
367
377
383
382
385
391
397
405
409
415
419
422
423
426
429
428
430
427
425
423

Saturday 17

Waning Crescent 0%

07:53

16:34

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

Sun - Rise: 07:35, Set: 16:50, Transit: 12:13. Moon - Rise: 07:53, Set: 16:34. Civil Dark: 17:23 - 07:03. Nautical Dark: 17:59 - 06:27. Astro Dark: 18:35 - 05:51

Total Clouds (% Sky Obscured)

95
58
11
45
40
60
49
43
53
100
88
67
59
58
43
72
88
93
94
91
94
79
45
68

Low Clouds (% Sky Obscured)

67
8
1
1
2
25
47
43
53
99
83
67
59
58
43
66
78
87
86
84
84
77
45
55

Medium Clouds (% Sky Obscured)

61
18
7
45
40
55
21
36
43
73
46
26
42
5
0
15
50
52
51
51
48
0
0
2

High Clouds (% Sky Obscured)

0
0
0
4
2
0
0
3
3
3
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
9
9
7
8
9
9
9
9
9
9
9
7
7
5
7
7
3

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 (%)

13
10
2
1
0
1
2
7
10
18
21
14
13
12
8
2
2
8
11
17
9
5
5
6

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-2
-3
-5
-7
-8
-9
-9
-10
-11
-12
-12
-13
-11
-11
-10
-9
-8
-7
-6
-6
-7
-8
-10
-11

Relative Humidity (%)

92
92
82
81
85
88
87
85
87
86
86
83
83
79
77
77
77
79
84
85
90
92
90
88

Pressure (mb)

1010
1011
1011
1012
1012
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1013
1012
1012
1011
1011
1012
1011
1011
1011

Ozone (du)

421
424
417
419
429
441
443
439
435
432
435
436
446
454
462
453
451
425
412
405
402
398
394
394

Sunday 18

New Moon 1%

08:23

17:46

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: 07:35, Set: 16:52, Transit: 12:13. Moon - Rise: 08:23, Set: 17:46. Civil Dark: 17:24 - 07:02. Nautical Dark: 18:01 - 06:26. Astro Dark: 18:36 - 05:51

Total Clouds (% Sky Obscured)

62
67
85
100
100
100
100
98
97
96
96
96
96
97
98
99
94
88
87
81
79
72
61
56

Low Clouds (% Sky Obscured)

43
54
69
85
89
91
94
93
91
91
89
87
86
90
94
98
94
88
87
81
76
69
61
56

Medium Clouds (% Sky Obscured)

8
26
55
100
100
100
100
95
92
91
90
92
93
85
84
82
80
82
85
81
79
70
40
25

High Clouds (% Sky Obscured)

0
29
68
100
73
53
40
40
40
40
2
2
2
8
1
19
20
20
15
5
4
0
0
0

ISS Passover

Visibility (miles)

3
3
2
2
2
0
0
0
0
0
0
1
0
1
2
8
9
9
9
9
9
9
4
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
Snow

Precipitation Probability (%)

3
7
6
8
18
38
43
56
51
53
48
45
48
40
31
31
18
25
9
10
6
22
34
50

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

3
3
3
3
2
3
3
4
5
6
9
8
9
10
11
12
13
13
12
12
10
10
10
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
88
88
90
90
90
92
92
90
92
90
90
89
84
79
79
77
77
79
82
85
83
88

Pressure (mb)

1011
1010
1010
1009
1008
1008
1007
1006
1006
1005
1005
1004
1004
1004
1004
1003
1003
1003
1004
1004
1005
1006
1006
1007

Ozone (du)

395
393
388
386
385
387
393
409
419
431
436
439
443
441
439
441
445
451
451
451
458
468
480
484

Monday 19

Waxing Crescent 4%

08:46

18:58

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: 07:34, Set: 16:53, Transit: 12:14. Moon - Rise: 08:46, Set: 18:58. Civil Dark: 17:26 - 07:02. Nautical Dark: 18:02 - 06:25. Astro Dark: 18:37 - 05:50

Total Clouds (% Sky Obscured)

52
52
47
47
32
82
100
88
76
64
76
88
100
100
100
100
81
83
94
94
96
99
99
99

Low Clouds (% Sky Obscured)

52
47
34
31
21
30
40
36
35
35
45
56
68
55
46
34
42
61
80
87
93
99
98
96

Medium Clouds (% Sky Obscured)

25
20
25
45
22
82
100
88
76
64
76
88
100
62
98
62
36
32
31
45
60
76
73
77

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
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 (%)

17
6
5
1
3
3
2
2
1
0
0
0
0
0
1
1
2
3
4
11
12
11
16
18

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)

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

Chance of Frost

Temperature (°C)

-10
-12
-13
-14
-16
-17
-18
-19
-19
-20
-21
-22
-20
-20
-19
-18
-17
-17
-17
-17
-17
-18
-19
-20

Feels Like (°C)

-16
-18
-20
-21
-22
-21
-24
-24
-25
-25
-26
-27
-25
-25
-24
-23
-22
-23
-22
-22
-20
-19
-18
-24

Dew Point (°C)

-12
-14
-16
-18
-19
-21
-22
-22
-23
-24
-25
-25
-24
-24
-24
-23
-22
-22
-21
-20
-21
-22
-23
-23

Relative Humidity (%)

86
83
76
74
75
71
72
72
72
69
71
73
71
66
63
62
62
65
68
71
72
73
75
75

Pressure (mb)

1007
1008
1009
1010
1011
1012
1013
1014
1014
1015
1016
1017
1017
1018
1018
1018
1017
1018
1018
1018
1019
1019
1020
1020

Ozone (du)

482
483
499
504
502
508
516
522
528
529
535
533
531
528
521
517
515
516
517
519
518
518
517
515

Tuesday 20

Waxing Crescent 9%

09:07

20:10

21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 OK
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: 07:33, Set: 16:54, Transit: 12:14. Moon - Rise: 09:07, Set: 20:10. Civil Dark: 17:27 - 07:01. Nautical Dark: 18:03 - 06:25. Astro Dark: 18:38 - 05:50

Total Clouds (% Sky Obscured)

99
98
97
96
68
42
21
36
49
63
70
79
84
91
94
94
96
98
100
99
99
98
98
99

Low Clouds (% Sky Obscured)

95
84
73
63
44
25
7
14
20
27
34
41
48
59
70
83
82
82
79
75
76
77
82
87

Medium Clouds (% Sky Obscured)

75
67
58
54
33
15
0
1
2
3
3
4
4
8
16
26
45
57
69
85
87
87
88
90

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
30
45
80

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
8
8
7
7
6
5
5
5
6
8
9
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 (%)

19
17
14
10
9
7
4
4
3
0
1
1
0
1
1
0
4
5
4
14
18
20
26
30

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)

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

Chance of Frost

Temperature (°C)

-20
-21
-22
-22
-23
-24
-24
-24
-24
-24
-24
-23
-22
-21
-19
-18
-17
-17
-17
-16
-17
-17
-18
-18

Feels Like (°C)

-24
-24
-24
-24
-23
-28
-28
-27
-27
-28
-29
-29
-29
-29
-28
-28
-27
-21
-20
-20
-20
-20
-21
-23

Dew Point (°C)

-24
-24
-25
-26
-27
-27
-28
-28
-27
-28
-28
-27
-26
-25
-23
-22
-20
-20
-20
-19
-20
-20
-21
-21

Relative Humidity (%)

71
72
70
70
70
69
69
69
70
69
69
69
68
67
71
72
74
75
77
79
79
79
78
79

Pressure (mb)

1021
1021
1022
1022
1023
1023
1023
1024
1024
1025
1025
1025
1025
1025
1025
1024
1024
1024
1023
1023
1023
1023
1023
1022

Ozone (du)

512
510
508
506
504
498
492
486
484
482
479
480
480
481
478
476
473
470
467
464
460
457
453
447

Wednesday 21

Waxing Crescent 16%

09:25

No Set

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

Sun - Rise: 07:32, Set: 16:56, Transit: 12:14. Moon - Rise: 09:25, Set: No Set. Civil Dark: 17:28 - 07:00. Nautical Dark: 18:04 - 06:24. Astro Dark: 18:39 - 05:49

Total Clouds (% Sky Obscured)

99
98
98
97
95
91
89
92
91
95
97
98
99
100
100
100
94
87
79
61
41
24

Low Clouds (% Sky Obscured)

93
90
90
88
90
91
89
92
91
95
94
91
90
86
85
87
89
87
79
61
41
24

Medium Clouds (% Sky Obscured)

93
82
73
96
91
77
76
76
73
81
85
93
99
78
54
26
14
9
0
0
0
0

High Clouds (% Sky Obscured)

85
90
90
75
41
7
0
0
0
1
7
25
64
78
74
65
49
33
18
24
30
24

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Probability (%)

35
36
38
39
40
39
39
38
36
35
29
21
13
13
12
12
10
10
11
11
11
5

Precipitation Amount (mm)

0.1
0
0.1
0
0.1
0.1
0.1
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-18
-18
-18
-18
-19
-19
-20
-20
-20
-20
-20
-19
-17
-16
-15
-13
-12
-12
-12
-12
-14
-16

Feels Like (°C)

-23
-24
-24
-24
-24
-24
-25
-26
-26
-26
-26
-25
-23
-23
-22
-22
-21
-17
-17
-16
-16
-15

Dew Point (°C)

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

Relative Humidity (%)

81
82
83
83
84
84
84
82
83
84
84
83
83
81
82
81
79
83
84
86
86
86

Pressure (mb)

1022
1021
1021
1021
1020
1020
1020
1019
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1022
1023

Ozone (du)

440
434
433
432
430
427
423
419
411
403
394
388
381
375
375
375
376
378
381
383
385
386

Forecast for ByWard Market, Ottawa, Canada (45.42,-75.69)

Generated: 15/01/26 21:16:45. Forecast: 15/01/26 to 21/01/26. Timezone: UTC-5.00