Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 27

First Quarter 63%

12:01

00:47

19 OK
20 OK
21 OK
22 OK
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: 07:41, Set: 16:35, Transit: 12:08. Moon - Rise: 12:01, Set: 00:47. Civil Dark: 17:08 - 07:07. Nautical Dark: 17:44 - 06:31. Astro Dark: 18:19 - 05:56

Total Clouds (% Sky Obscured)

21
21
20
16
39
28
46
95
91
86
87
93
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

4
4
4
4
0
0
3
4
0
0
0
0
0
2
16
0
0
0
0
0
0
0
4
29

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
30
36
53
48
30
25
50
100
94
100
100
100
98
100
100
100
100

High Clouds (% Sky Obscured)

5
3
1
16
39
28
46
94
90
86
86
92
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

3
3
3
3
3
3
5
5
4
4
4
4
4
4
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
4
15
25
39
55
51
54
53
52
55
45
70
72
63
54
53
28
6
1
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
0
0
0
0
0
0
0
1
13
38
48

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)

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

Chance of Frost

Temperature (°C)

-11
-12
-13
-13
-13
-13
-13
-12
-12
-12
-11
-10
-10
-10
-9
-7
-6
-5
-4
-3
-3
-3
-3
-3

Feels Like (°C)

-14
-16
-17
-17
-17
-17
-17
-16
-17
-16
-15
-15
-14
-14
-13
-12
-10
-9
-8
-8
-7
-7
-7
-8

Dew Point (°C)

-12
-13
-14
-15
-14
-14
-14
-14
-13
-13
-12
-12
-11
-11
-10
-8
-8
-7
-6
-5
-5
-5
-4
-4

Relative Humidity (%)

90
88
90
90
90
90
90
90
90
92
90
90
92
90
90
90
87
85
87
87
89
89
91
91

Pressure (mb)

1025
1025
1025
1025
1025
1025
1024
1025
1024
1023
1022
1022
1021
1021
1020
1019
1018
1017
1015
1014
1012
1012
1011
1010

Ozone (du)

328
327
327
325
322
322
321
321
323
321
321
320
321
321
323
324
325
327
326
324
326
326
325
327

Sunday 28

Waxing Gibbous 63%

12:25

02:03

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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 07:41, Set: 16:35, Transit: 12:08. Moon - Rise: 12:25, Set: 02:03. Civil Dark: 17:08 - 07:08. Nautical Dark: 17:45 - 06:31. Astro Dark: 18:20 - 05:56

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
88
95
73
84
92
96
100
95
100
100

Low Clouds (% Sky Obscured)

58
64
77
87
89
96
100
100
100
100
100
100
99
89
88
95
63
76
86
94
92
87
100
86

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
98
97
100
100
90
100
93
80
75
65
57
4
71
94
98
91
100
89

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
62
55
0
0
0
0
0
0
15
65
65
21

ISS Passover

Visibility (miles)

9
6
6
6
6
1
0
0
0
0
0
0
0
8
9
9
9
9
3
0
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

Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Frozen rai
None
None
None
None
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

86
95
95
95
95
95
95
95
95
95
95
95
95
95
80
36
35
27
33
42
53
60
76
66

Precipitation Amount (mm)

0.3
1.4
2.2
2
2.8
2.1
0.7
1.1
0.9
1.9
1
0.6
2.1
3.4
0.6
0
0
0
0
0.2
0.3
0.3
0.5
0.2

Wind Speed/Direction (mph)

7
8
9
9
9
9
7
7
7
7
8
10
11
11
14
20
21
24
26
24
23
24
24
23

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
94
94
94
94
96
100
100
100
100
100
100
100
93
86
80
76
74
78
86
83
89
91
91

Pressure (mb)

1009
1007
1005
1003
1001
999
998
996
994
992
991
989
989
988
988
989
989
989
989
989
989
988
988
987

Ozone (du)

328
324
323
321
320
321
322
320
321
319
320
324
339
341
344
346
354
374
390
404
408
408
410
412

Monday 29

Waxing Gibbous 74%

12:55

03:24

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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 07:41, Set: 16:36, Transit: 12:09. Moon - Rise: 12:55, Set: 03:24. Civil Dark: 17:09 - 07:08. Nautical Dark: 17:46 - 06:31. Astro Dark: 18:21 - 05:56

Total Clouds (% Sky Obscured)

100
96
95
94
100
100
100
96
100
100
100
100
100
96
89
90
91
97
96
95
95
96
98
99

Low Clouds (% Sky Obscured)

70
38
92
83
85
100
100
63
47
83
78
77
80
80
81
79
78
72
69
68
65
65
65
65

Medium Clouds (% Sky Obscured)

85
35
88
41
58
100
83
85
100
100
91
90
100
88
74
62
45
87
62
55
79
86
92
98

High Clouds (% Sky Obscured)

1
0
0
0
12
14
0
0
0
0
0
0
2
3
2
2
0
2
4
6
7
30
56
50

ISS Passover

Visibility (miles)

3
0
0
0
8
5
0
0
0
1
0
5
9
9
8
9
9
9
9
7
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
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

61
50
54
36
32
57
46
35
29
31
26
7
3
4
2
2
5
16
3
8
15
7
7
3

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

22
22
22
21
20
20
18
17
18
18
17
17
17
17
17
17
17
16
16
16
15
15
15
15

Chance of Frost

Temperature (°C)

-3
-4
-5
-5
-7
-7
-9
-9
-10
-10
-10
-10
-10
-11
-11
-11
-11
-10
-10
-10
-10
-10
-10
-10

Feels Like (°C)

-11
-13
-14
-15
-15
-16
-16
-17
-17
-18
-18
-18
-18
-18
-18
-18
-18
-18
-17
-17
-17
-17
-17
-17

Dew Point (°C)

-6
-6
-7
-7
-10
-11
-10
-11
-12
-13
-12
-13
-14
-15
-15
-15
-15
-14
-14
-14
-14
-13
-13
-13

Relative Humidity (%)

79
86
87
85
79
77
87
85
85
78
83
77
72
72
73
73
72
72
72
74
73
75
77
77

Pressure (mb)

987
986
987
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
999
999
1000
1000
1001
1001
1002

Ozone (du)

410
407
401
395
382
378
379
377
386
398
403
420
433
432
431
432
437
432
434
438
438
438
437
438

Tuesday 30

Waxing Gibbous 84%

13:34

04:47

19 Bad
20 Bad
21 OK
22 Good
23 OK
00 OK
01 OK
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: 07:41, Set: 16:37, Transit: 12:09. Moon - Rise: 13:34, Set: 04:47. Civil Dark: 17:10 - 07:08. Nautical Dark: 17:47 - 06:31. Astro Dark: 18:22 - 05:56

Total Clouds (% Sky Obscured)

76
53
30
12
18
32
40
66
89
92
96
98
98
99
85
96
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

45
22
0
0
0
0
4
5
5
21
37
53
66
77
82
89
96
97
89
78
70
72
78
82

Medium Clouds (% Sky Obscured)

76
53
30
0
18
31
40
64
88
90
92
93
96
97
52
52
95
99
100
100
100
100
100
86

High Clouds (% Sky Obscured)

40
40
19
8
8
10
5
4
3
9
3
25
4
3
1
35
68
100
100
100
100
100
94
94

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
5
0
0
9
9
9
9
9
8
0
3
0
3
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
Snow
None
Snow
Snow
Snow
Snow
None
None

Precipitation Probability (%)

3
2
0
1
1
1
3
4
4
5
24
23
19
24
29
39
48
48
53
52
57
70
44
39

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

15
15
15
14
13
13
12
10
9
8
7
6
5
4
6
9
10
12
11
8
7
7
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
68
65
64
64
66
69
72
75
75
78
88
90
90
84
76
73
71
73
89
81
92
84
70

Pressure (mb)

1003
1003
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1003
1002
1001
1002
1002
1002
1003
1004

Ozone (du)

434
432
425
422
412
400
386
385
378
381
379
374
372
371
369
369
372
376
378
378
379
382
383
387

Wednesday 31

Waxing Gibbous 92%

14:26

06:08

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

Sun - Rise: 07:41, Set: 16:38, Transit: 12:09. Moon - Rise: 14:26, Set: 06:08. Civil Dark: 17:11 - 07:08. Nautical Dark: 17:47 - 06:32. Astro Dark: 18:23 - 05:56

Total Clouds (% Sky Obscured)

100
82
100
100
100
100
73
70
66
73
35
54
57
74
80
71
59
52
37
40
42
34
30
25

Low Clouds (% Sky Obscured)

71
60
50
52
51
53
47
41
35
35
34
36
23
12
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

43
43
100
100
100
100
57
53
53
64
15
7
27
50
75
54
28
3
3
6
10
9
7
4

High Clouds (% Sky Obscured)

42
30
73
71
69
1
0
0
0
0
0
10
26
45
62
44
21
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
5
3
5
7
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 (%)

37
34
29
29
24
4
12
14
13
13
13
9
16
14
9
17
18
15
21
20
15
16
16
9

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

Chance of Frost

Temperature (°C)

-7
-8
-9
-10
-10
-10
-11
-12
-12
-13
-13
-13
-13
-13
-12
-11
-10
-10
-9
-9
-9
-9
-9
-10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
67
68
69
71
71
72
72
73
71
71
71
69
67
66
65
68
72
77
77
80
80
82
81

Pressure (mb)

1005
1005
1006
1007
1007
1007
1008
1008
1008
1008
1008
1009
1009
1010
1010
1010
1010
1009
1008
1008
1008
1008
1008
1008

Ozone (du)

391
384
378
381
375
374
372
373
370
368
363
365
369
371
373
376
376
377
378
384
391
398
405
412

Thursday 1

Waxing Gibbous 98%

15:33

07:19

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

Sun - Rise: 07:41, Set: 16:39, Transit: 12:10. Moon - Rise: 15:33, Set: 07:19. Civil Dark: 17:12 - 07:08. Nautical Dark: 17:48 - 06:32. Astro Dark: 18:23 - 05:56

Total Clouds (% Sky Obscured)

46
60
71
76
82
89
80
70
60
49
36
23
18
12
5
9
15
21
28
35
48
62
75
84

Low Clouds (% Sky Obscured)

0
0
0
23
47
70
69
68
60
46
26
14
16
12
5
9
14
21
21
21
25
16
11
0

Medium Clouds (% Sky Obscured)

15
24
31
20
14
9
6
3
1
5
8
12
11
8
4
4
3
4
15
26
38
54
71
84

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
12
26
39

ISS Passover

Visibility (miles)

9
9
9
9
9
9
8
8
7
7
7
7
7
8
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 (%)

14
14
7
17
16
7
16
16
7
12
13
5
8
8
3
7
8
8
15
16
12
22
25
13

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
2
2
2
4
4
4
4
4
4
4
4
4
4
4
6
7
8
8
9
9
10

Chance of Frost

Temperature (°C)

-10
-10
-10
-9
-10
-10
-10
-11
-11
-12
-13
-13
-13
-13
-12
-11
-10
-9
-8
-8
-7
-7
-8
-8

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
81
80
80
80
83
83
85
86
85
84
86
84
83
79
78
73
69
67
68
71
74
74
75

Pressure (mb)

1008
1008
1008
1008
1007
1007
1007
1007
1007
1007
1007
1007
1008
1008
1008
1009
1008
1007
1006
1006
1006
1006
1006
1007

Ozone (du)

420
408
396
384
372
359
347
345
344
343
347
351
355
357
360
362
367
372
377
386
395
404
409
413

Friday 2

Waxing Gibbous 100%

16:51

08:16

19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 OK
04 OK
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 OK
11 OK
12 OK

Sun - Rise: 07:41, Set: 16:40, Transit: 12:10. Moon - Rise: 16:51, Set: 08:16. Civil Dark: 17:13 - 07:08. Nautical Dark: 17:49 - 06:32. Astro Dark: 18:24 - 05:57

Total Clouds (% Sky Obscured)

77
71
63
66
70
72
61
45
28
40
57
73
72
67
59
41
32
41

Low Clouds (% Sky Obscured)

5
0
5
27
49
71
51
35
21
39
48
59
61
62
59
41
32
41

Medium Clouds (% Sky Obscured)

72
63
49
37
22
9
7
5
5
8
12
15
21
25
28
18
17
12

High Clouds (% Sky Obscured)

26
13
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

21
20
6
10
13
3
6
9
3
5
5
2
3
3
1
3
4
2

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
77
77
75
77
80
81
81
81
81
80
78
75
73
70
68
69
69

Pressure (mb)

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

Ozone (du)

418
412
406
400
398
395
392
380
367
354
355
356
357
353
349
345
343
340

Forecast for Kingston, Canada (44.23,-76.49)

Generated: 27/12/25 19:47:09. Forecast: 27/12/25 to 02/01/26. Timezone: UTC-5.00