Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 4

Full Moon 100%

No Rise

No Set

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

Sun - Rise: 09:47, Set: 15:11, Transit: 12:28. Moon - Rise: No Rise, Set: No Set. Civil Dark: 16:15 - 08:42. Nautical Dark: 17:17 - 07:40. Astro Dark: 18:12 - 06:45

Total Clouds (% Sky Obscured)

76
72
37
22
3
3
4
26
34
21
15
13
3
9
8
2
9
15
14
5
2
1
1
2

Low Clouds (% Sky Obscured)

71
65
28
9
0
0
0
6
12
1
0
0
0
0
0
0
1
6
9
5
1
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
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)

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

Fog (%)

0
0
0
1
0
0
0
0
0
0
0
0
0
1
2
3
6
15
30
40
52
50
7
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 (%)

7
6
1
1
1
2
2
3
3
2
4
4
8
1
2
1
1
3
1
2
2
1
2
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)

19
18
17
17
17
16
14
12
10
10
10
10
9
9
9
7
6
6
6
5
5
5
5
5

Chance of Frost

Temperature (°C)

-17
-18
-20
-21
-22
-22
-23
-24
-24
-24
-24
-25
-26
-27
-27
-27
-28
-28
-29
-30
-30
-30
-30
-30

Feels Like (°C)

-25
-26
-27
-28
-29
-28
-29
-28
-29
-30
-30
-31
-32
-31
-32
-32
-31
-32
-33
-34
-33
-34
-33
-32

Dew Point (°C)

-21
-22
-24
-25
-26
-27
-27
-27
-27
-27
-27
-28
-29
-30
-30
-31
-31
-32
-32
-33
-33
-34
-34
-33

Relative Humidity (%)

70
70
69
65
64
66
68
71
74
75
73
71
72
72
71
71
72
71
71
71
70
69
69
68

Pressure (mb)

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

Ozone (du)

452
458
455
451
445
444
445
446
446
444
443
447
453
453
448
455
458
460
464
467
456
453
480
487

Friday 5

Waning Gibbous 97%

No Rise

13:43

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

Sun - Rise: 09:49, Set: 15:10, Transit: 12:29. Moon - Rise: No Rise, Set: 13:43. Civil Dark: 16:14 - 08:44. Nautical Dark: 17:16 - 07:42. Astro Dark: 18:11 - 06:46

Total Clouds (% Sky Obscured)

2
18
33
43
33
31
30
27
25
25
24
25
26
30
32
34
31
31
27
33
50
74
80
86

Low Clouds (% Sky Obscured)

0
18
33
43
33
31
30
27
25
25
24
25
26
30
32
34
31
31
27
26
17
3
3
3

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
2
0
0
0
0
0
0
0
0
0
4
24
30
59

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
3
3
24
54
55
26

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 (%)

5
15
9
14
24
29
30
44
34
27
17
15
11
0
0
0
0
2
1
0
1
3
3
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
2
1
1
2
1
1
0
1
1
1
1
1
1
0
1
1
0
1
1
0
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)

4
4
4
4
5
5
5
5
5
5
5
5
5
5
5
5
5
4
4
5
4
4
4
4

Chance of Frost

Temperature (°C)

-30
-30
-31
-32
-32
-33
-33
-33
-33
-33
-33
-33
-34
-34
-34
-34
-34
-34
-35
-35
-35
-34
-33
-32

Feels Like (°C)

-32
-33
-34
-35
-35
-36
-36
-36
-36
-36
-36
-36
-36
-37
-37
-37
-37
-37
-37
-38
-38
-38
-38
-37

Dew Point (°C)

-33
-34
-35
-35
-36
-37
-37
-37
-37
-37
-37
-38
-38
-38
-38
-38
-38
-38
-38
-39
-38
-38
-38
-36

Relative Humidity (%)

69
69
68
67
67
66
66
64
64
63
63
63
63
63
64
64
65
65
66
65
65
64
63
64

Pressure (mb)

1025
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1025
1025
1025
1025
1025
1025
1026
1026
1026
1026
1026
1026
1026

Ozone (du)

478
477
481
483
480
479
478
476
476
477
476
472
470
468
468
470
465
463
464
463
461
464
465
463

Saturday 6

Waning Gibbous 91%

15:20

13:26

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
13 Bad

Sun - Rise: 09:50, Set: 15:09, Transit: 12:29. Moon - Rise: 15:20, Set: 13:26. Civil Dark: 16:13 - 08:45. Nautical Dark: 17:15 - 07:43. Astro Dark: 18:11 - 06:47

Total Clouds (% Sky Obscured)

92
87
95
94
97
100
100
100
100
100
100
100
100
98
98
96
100
96
99
100
100
99
98
97

Low Clouds (% Sky Obscured)

2
4
18
25
30
58
33
40
60
65
85
91
88
84
88
89
88
90
90
74
70
63
61
66

Medium Clouds (% Sky Obscured)

70
65
76
90
90
100
100
100
100
100
100
100
98
88
88
79
100
79
88
99
100
96
90
88

High Clouds (% Sky Obscured)

57
63
84
75
86
74
62
77
84
93
95
62
33
30
58
47
61
54
58
85
49
39
21
15

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
1
0
0
0
0
0
0
0
0
1
1
1
1
1
5
5

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
3
3
3
3
3
3
3
3
3

Precipitation Type

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

Precipitation Probability (%)

1
0
1
0
1
1
2
4
12
16
22
32
41
40
35
29
19
17
20
18
20
17
21
26

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

4
4
4
4
4
4
4
4
5
5
5
6
5
5
6
6
6
6
5
5
5
5
6
6

Chance of Frost

Temperature (°C)

-32
-32
-31
-31
-31
-30
-30
-29
-29
-28
-26
-26
-25
-24
-24
-23
-23
-23
-23
-23
-23
-22
-22
-21

Feels Like (°C)

-36
-36
-36
-36
-35
-35
-34
-34
-33
-32
-31
-31
-30
-29
-29
-28
-28
-28
-28
-27
-27
-27
-26
-26

Dew Point (°C)

-36
-36
-35
-35
-35
-34
-34
-34
-33
-31
-29
-29
-28
-27
-27
-26
-26
-26
-26
-25
-25
-25
-25
-24

Relative Humidity (%)

64
64
65
65
64
65
64
64
66
71
74
74
75
75
75
77
76
76
76
77
77
76
75
75

Pressure (mb)

1026
1026
1025
1025
1025
1024
1024
1024
1024
1023
1023
1023
1023
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

459
455
454
454
454
451
449
453
452
452
452
451
451
451
449
447
445
445
447
446
447
446
448
449

Sunday 7

Waning Gibbous 83%

17:47

13:18

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
13 Bad

Sun - Rise: 09:52, Set: 15:08, Transit: 12:29. Moon - Rise: 17:47, Set: 13:18. Civil Dark: 16:13 - 08:47. Nautical Dark: 17:15 - 07:44. Astro Dark: 18:11 - 06:49

Total Clouds (% Sky Obscured)

96
95
94
96
98
100
99
98
97
98
99
100
99
98
97
92
88
83
89
94
100
100
100
100

Low Clouds (% Sky Obscured)

72
52
41
31
53
64
55
62
66
62
59
53
57
64
70
57
45
32
31
30
29
23
17
10

Medium Clouds (% Sky Obscured)

87
83
81
90
95
100
97
94
92
93
96
100
97
94
91
85
78
70
80
89
99
99
100
100

High Clouds (% Sky Obscured)

15
28
45
48
48
43
48
55
58
65
82
95
90
86
80
85
80
65
38
25
24
13
9
9

ISS Passover

Visibility (miles)

7
1
5
9
9
9
5
2
0
0
0
0
1
0
0
0
0
0
0
0
2
9
9
9

Fog (%)

3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3

Precipitation Type

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

Precipitation Probability (%)

26
24
21
20
18
17
23
26
33
34
33
31
34
36
41
42
40
37
32
26
17
14
12
10

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

5
6
6
6
5
5
6
6
5
5
6
6
6
6
6
7
7
7
7
7
7
7
8
8

Chance of Frost

Temperature (°C)

-21
-21
-21
-22
-22
-22
-21
-21
-21
-21
-21
-21
-21
-21
-21
-21
-21
-21
-21
-21
-21
-22
-21
-21

Feels Like (°C)

-25
-26
-26
-27
-26
-26
-26
-26
-26
-25
-25
-25
-26
-25
-26
-26
-26
-26
-26
-27
-27
-27
-26
-25

Dew Point (°C)

-24
-23
-24
-25
-24
-24
-24
-24
-24
-23
-23
-23
-23
-23
-23
-23
-23
-23
-23
-23
-24
-24
-24
-24

Relative Humidity (%)

76
78
78
77
76
76
76
77
78
79
80
80
80
80
81
82
81
82
81
80
80
79
78
78

Pressure (mb)

1021
1021
1021
1021
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1019
1019
1019
1019
1019
1018

Ozone (du)

447
443
441
440
438
434
431
432
431
428
425
425
422
421
421
424
428
427
413
397
389
389
388
386

Monday 8

Waning Gibbous 74%

19:50

13:12

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
13 Bad

Sun - Rise: 09:54, Set: 15:07, Transit: 12:30. Moon - Rise: 19:50, Set: 13:12. Civil Dark: 16:12 - 08:48. Nautical Dark: 17:15 - 07:46. Astro Dark: 18:10 - 06:50

Total Clouds (% Sky Obscured)

100
99
99
99
99
99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99
98

Low Clouds (% Sky Obscured)

35
60
85
85
84
83
85
86
87
87
87
87
87
87
87
87
86
86
84
83
81
81
80
80

Medium Clouds (% Sky Obscured)

99
98
96
96
96
96
97
99
100
100
100
100
100
100
100
100
100
100
100
100
100
98
95
93

High Clouds (% Sky Obscured)

5
6
11
13
16
18
45
74
100
100
100
100
97
96
94
85
85
83
88
90
91
88
86
83

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
5
3
0
3
5
7
7
8

Fog (%)

3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3

Precipitation Type

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

Precipitation Probability (%)

13
16
20
30
37
43
43
42
39
39
41
43
42
40
39
58
51
43
41
40
38
39
39
39

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

8
8
8
8
9
9
9
9
9
9
10
10
10
10
10
10
10
9
9
9
8
8
7
7

Chance of Frost

Temperature (°C)

-21
-21
-21
-21
-20
-20
-20
-20
-20
-20
-19
-19
-19
-18
-18
-18
-18
-18
-18
-18
-18
-18
-18
-18

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
77
76
76
75
76
78
77
76
77
77
76
76
75
74
74
75
77
77
77
77
76
76
76

Pressure (mb)

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

Ozone (du)

384
381
377
375
372
372
373
375
376
375
375
376
375
375
375
376
379
381
384
383
383
383
384
385

Tuesday 9

Waning Gibbous 64%

21:39

13:07

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
13 Bad

Sun - Rise: 09:56, Set: 15:06, Transit: 12:30. Moon - Rise: 21:39, Set: 13:07. Civil Dark: 16:12 - 08:49. Nautical Dark: 17:14 - 07:47. Astro Dark: 18:10 - 06:51

Total Clouds (% Sky Obscured)

97
97
96
90
84
78
58
36
45
81
93
98
98
97
96
95
93
92
96
98
100
100
100
100

Low Clouds (% Sky Obscured)

79
78
77
63
47
32
23
13
4
27
52
75
77
80
87
85
83
82
80
79
73
70
62
58

Medium Clouds (% Sky Obscured)

88
84
79
74
69
66
47
32
15
45
65
78
65
48
29
31
29
28
52
77
100
100
100
100

High Clouds (% Sky Obscured)

87
87
91
75
59
50
47
36
40
30
8
3
4
5
5
3
5
10
43
73
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 (%)

3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3

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 (%)

37
34
29
25
20
13
11
9
5
7
6
3
7
7
5
7
7
4
7
7
3
4
4
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)

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

Chance of Frost

Temperature (°C)

-18
-18
-19
-19
-19
-19
-20
-20
-21
-21
-21
-22
-22
-22
-22
-21
-21
-21
-22
-22
-22
-22
-22
-21

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
77
77
77
77
77
77
75
76
76
76
76
76
76
77
77
76
75
74
70
68
65
64
64

Pressure (mb)

1014
1014
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1017
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
1018

Ozone (du)

386
389
392
395
397
398
400
394
388
382
381
379
378
377
376
376
374
373
372
370
368
367
368
369

Wednesday 10

Waning Gibbous 53%

23:18

13:01

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

Sun - Rise: 09:57, Set: 15:05, Transit: 12:31. Moon - Rise: 23:18, Set: 13:01. Civil Dark: 16:11 - 08:51. Nautical Dark: 17:14 - 07:48. Astro Dark: 18:10 - 06:52

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

53
48
39
36
37
44
52
61
71
74
78
82
84
85
87
85
83
82
83
81
82

Medium Clouds (% Sky Obscured)

99
97
97
98
99
99
99
98
98
99
99
100
100
100
100
96
92
88
91
94
99

High Clouds (% Sky Obscured)

79
60
43
60
72
88
94
97
100
100
100
100
100
100
100
98
95
89
87
81
84

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

Fog (%)

3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3

Precipitation Type

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

Precipitation Probability (%)

4
4
2
2
1
0
5
11
18
26
27
26
30
29
29
28
26
24
28
31
34

Precipitation Amount (mm)

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
8
8
8
8
8
8
8
9
9
9
8
8
8
7
7
7
7
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-26
-26
-26
-26
-26
-26
-26
-26
-26
-26
-26
-26
-26
-26
-26
-25
-27
-27
-27
-27
-27

Dew Point (°C)

-26
-26
-26
-26
-25
-25
-24
-24
-25
-25
-25
-26
-26
-26
-26
-27
-27
-27
-27
-28
-28

Relative Humidity (%)

62
64
64
65
67
69
71
70
69
67
67
66
66
66
66
65
66
66
66
66
66

Pressure (mb)

1018
1018
1019
1019
1020
1021
1021
1022
1023
1023
1024
1024
1025
1026
1026
1027
1027
1028
1029
1029
1030

Ozone (du)

370
371
372
372
371
371
370
370
370
370
367
365
363
362
361
359
362
364
366
365
364

Forecast for Yellowknife, North Slave Region, Canada (62.45,-114.37)

Generated: 04/12/25 14:48:51. Forecast: 04/12/25 to 10/12/25. Timezone: UTC-7.00