Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 23

Waxing Crescent 13%

10:43

20:04

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
05 Bad
06 Bad
07 Bad
08 Bad
09 OK
10 OK

Sun - Rise: 07:41, Set: 16:32, Transit: 12:06. Moon - Rise: 10:43, Set: 20:04. Civil Dark: 17:05 - 07:08. Nautical Dark: 17:42 - 06:31. Astro Dark: 18:17 - 05:56

Total Clouds (% Sky Obscured)

100
100
99
100
99
95
100
100
98
100
100
100
94
74
72
77
99
83
61
58
52
45
32
40

Low Clouds (% Sky Obscured)

89
90
93
92
89
88
100
100
84
100
100
100
94
69
71
75
99
83
61
58
52
45
32
40

Medium Clouds (% Sky Obscured)

100
98
95
100
96
72
86
77
82
24
12
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)

0
0
0
0
0
0
0
0
0
1
7
7
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

100
98
43
10
0
79
10
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

71
19
6
95
91
70
41
38
32
18
15
39
38
21
4
3
3
5
1
0
0
0
0
0

Precipitation Amount (mm)

0.6
0
0
0.7
0.5
0.4
0
0
0
0
0
0
0.1
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
6
3
7
7
5
5
5
8
9
10
11
12
13
13
14
14
13
14
13
12
11
11
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

1
1
1
1
0
0
0
1
1
1
1
1
1
-1
-3
-3
-4
-5
-6
-7
-8
-9
-10
-10

Relative Humidity (%)

100
100
100
100
98
98
98
98
98
96
94
94
91
83
74
74
71
72
74
73
73
73
69
67

Pressure (mb)

1018
1016
1014
1013
1013
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1013
1014
1015
1016
1019
1021
1022
1024
1026

Ozone (du)

302
300
305
312
312
310
309
311
314
316
321
325
326
328
332
333
332
330
326
321
317
319
325
327

Wednesday 24

Waxing Crescent 21%

11:04

21:14

11 OK
12 OK
13 OK
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: 07:41, Set: 16:32, Transit: 12:07. Moon - Rise: 11:04, Set: 21:14. Civil Dark: 17:06 - 07:08. Nautical Dark: 17:42 - 06:31. Astro Dark: 18:18 - 05:56

Total Clouds (% Sky Obscured)

40
40
47
68
91
67
79
67
67
88
91
94
100
99
100
100
96
100
100
100
100
96
100
99

Low Clouds (% Sky Obscured)

25
34
25
28
23
0
0
0
4
4
5
0
26
62
75
72
46
36
31
21
23
71
82
83

Medium Clouds (% Sky Obscured)

0
0
12
19
66
64
67
63
64
87
90
90
100
97
100
100
89
100
91
54
55
38
4
0

High Clouds (% Sky Obscured)

2
12
33
68
60
23
56
4
3
4
18
52
100
74
85
100
49
99
48
100
74
56
67
58

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
4
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
15
9
5
9
2
0
0
0
0
0
0
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)

9
9
9
7
6
4
3
2
1
2
2
4
4
5
4
4
4
5
5
4
4
4
5
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-8
-9
-7
-7
-7
-7
-6
-7
-6
-7
-7
-8
-7
-7
-6
-7
-6
-6
-6
-6
-6
-6
-6
-6

Dew Point (°C)

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

Relative Humidity (%)

66
66
65
65
65
70
75
78
78
73
78
76
79
79
81
82
82
82
84
89
89
87
84
80

Pressure (mb)

1027
1026
1026
1026
1026
1027
1026
1027
1027
1026
1025
1024
1024
1023
1021
1020
1019
1018
1016
1016
1016
1016
1016
1017

Ozone (du)

323
322
325
326
324
322
323
323
321
322
323
325
322
322
322
322
320
319
329
344
349
356
353
354

Thursday 25

Waxing Crescent 30%

11:04

22:24

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

Sun - Rise: 07:42, Set: 16:33, Transit: 12:07. Moon - Rise: 11:04, Set: 22:24. Civil Dark: 17:06 - 07:08. Nautical Dark: 17:43 - 06:32. Astro Dark: 18:18 - 05:56

Total Clouds (% Sky Obscured)

100
100
94
90
84
69
67
81
85
71
38
24
66
66
29
36
76
71
97
90
94
97
100
100

Low Clouds (% Sky Obscured)

68
87
94
78
70
41
29
28
17
22
7
6
6
0
0
0
0
0
0
0
0
1
2
36

Medium Clouds (% Sky Obscured)

0
0
0
0
0
8
0
0
18
22
30
11
19
25
24
28
57
65
97
90
94
90
100
100

High Clouds (% Sky Obscured)

100
100
7
60
55
47
59
66
84
70
1
8
56
50
6
7
37
32
36
41
56
75
82
85

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 (%)

4
3
0
1
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
11
12
12
12
12
11
11
11
11
12
11
11
10
10
9
9
10
9
9
9
9
9
10

Chance of Frost

Temperature (°C)

-1
-0
-1
-1
-3
-4
-6
-6
-7
-8
-9
-10
-10
-11
-12
-12
-12
-13
-13
-13
-13
-13
-12
-12

Feels Like (°C)

-5
-6
-7
-7
-9
-11
-12
-12
-13
-14
-15
-15
-15
-18
-16
-16
-16
-18
-18
-19
-19
-18
-18
-18

Dew Point (°C)

-4
-4
-6
-7
-8
-10
-11
-12
-13
-14
-15
-16
-16
-17
-18
-18
-19
-19
-19
-20
-20
-20
-19
-19

Relative Humidity (%)

80
74
68
66
67
66
66
64
63
61
61
61
61
61
60
59
59
59
58
56
56
56
55
55

Pressure (mb)

1017
1016
1017
1019
1020
1022
1023
1025
1026
1026
1026
1027
1027
1027
1028
1028
1029
1028
1028
1028
1028
1028
1027
1026

Ozone (du)

356
354
350
347
343
339
333
327
325
323
323
322
320
320
319
319
317
315
313
313
313
312
312
313

Friday 26

Waxing Crescent 41%

11:23

23:35

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 07:42, Set: 16:34, Transit: 12:08. Moon - Rise: 11:23, Set: 23:35. Civil Dark: 17:07 - 07:09. Nautical Dark: 17:44 - 06:32. Astro Dark: 18:19 - 05:57

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
99
99
98
98
95
92
88
84
81
79
83

Low Clouds (% Sky Obscured)

67
98
98
98
100
100
100
100
96
92
88
92
96
99
94
88
82
81
83
83
79
75
71
70

Medium Clouds (% Sky Obscured)

100
100
100
100
89
97
93
88
91
96
100
99
98
55
49
45
35
28
14
0
0
0
0
1

High Clouds (% Sky Obscured)

94
100
100
100
100
99
99
98
96
95
93
46
23
0
0
0
0
0
0
0
0
5
5
20

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None

Precipitation Probability (%)

1
2
16
31
46
72
87
95
95
95
79
73
75
74
67
64
54
43
34
21
18
18
14
6

Precipitation Amount (mm)

0
0
0
0
0.1
0.3
0.5
0.7
0.9
0.9
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.2
0.1
0
0
0
0
0

Wind Speed/Direction (mph)

10
12
12
12
12
12
12
12
12
13
13
14
14
14
13
12
12
11
10
10
10
9
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-19
-19
-18
-18
-18
-17
-16
-15
-13
-11
-11
-12
-11
-11
-10
-11
-10
-10
-10
-9
-10
-10
-10
-10

Relative Humidity (%)

53
52
51
50
52
54
59
62
72
87
88
87
87
88
90
88
90
90
90
92
90
90
90
87

Pressure (mb)

1025
1023
1021
1020
1019
1019
1018
1017
1017
1016
1016
1015
1015
1015
1016
1016
1017
1017
1018
1019
1020
1021
1022
1022

Ozone (du)

314
312
312
313
313
313
314
315
317
322
329
331
335
334
333
333
334
336
338
337
335
337
338
341

Saturday 27

First Quarter 52%

11:41

00:48

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 07:42, Set: 16:34, Transit: 12:08. Moon - Rise: 11:41, Set: 00:48. Civil Dark: 17:08 - 07:09. Nautical Dark: 17:44 - 06:32. Astro Dark: 18:20 - 05:57

Total Clouds (% Sky Obscured)

84
83
79
76
72
70
64
58
69
85
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

69
66
59
46
40
36
32
27
52
76
100
100
100
100
99
98
97
93
89
86
89
93
96
98

Medium Clouds (% Sky Obscured)

4
60
60
55
60
60
60
4
0
1
3
65
70
57
77
83
84
85
89
93
93
94
96
84

High Clouds (% Sky Obscured)

25
35
35
40
45
47
5
36
69
70
65
76
81
87
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

5
6
9
9
9
5
9
8
4
3
1
2
3
3
4
6
7
8
8
9
9
6
3
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
Very Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

4
2
1
3
1
3
3
10
3
12
4
2
11
2
9
12
14
17
18
17
46
69
91
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.3
0.5
0.6

Wind Speed/Direction (mph)

9
8
8
8
8
8
7
7
7
7
6
6
6
7
7
8
8
9
9
10
11
11
12
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-9
-8
-8
-8
-7
-8
-9
-9
-9
-8
-7
-6
-6
-5
-5
-5
-4
-4
-3
-3
-2
-1
-1
0

Relative Humidity (%)

83
82
81
79
82
85
85
87
87
89
90
92
89
87
87
87
89
89
87
89
89
92
94
98

Pressure (mb)

1022
1022
1022
1022
1022
1022
1023
1023
1023
1023
1022
1022
1021
1020
1020
1017
1016
1015
1014
1012
1011
1009
1008
1006

Ozone (du)

346
344
340
340
338
338
336
335
337
335
337
335
335
334
336
337
338
338
340
342
343
346
348
351

Sunday 28

Waxing Gibbous 63%

12:02

02:05

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 07:42, Set: 16:35, Transit: 12:09. Moon - Rise: 12:02, Set: 02:05. Civil Dark: 17:08 - 07:09. Nautical Dark: 17:45 - 06:32. Astro Dark: 18:20 - 05:57

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
98
97
96
92
87
85
88
86
83
87
92
96
97
97
98
94

Low Clouds (% Sky Obscured)

99
100
100
100
100
100
100
100
98
96
95
92
87
85
88
86
83
82
77
74
75
76
79
79

Medium Clouds (% Sky Obscured)

72
57
61
65
69
64
56
51
44
36
29
28
31
40
52
65
76
80
84
89
90
89
90
78

High Clouds (% Sky Obscured)

100
100
100
100
100
97
100
100
98
97
96
67
33
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

1
1
2
1
1
0
3
6
9
9
9
9
9
9
9
9
8
8
6
3
1
1
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

Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Sleet
Sleet
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None

Precipitation Probability (%)

95
95
89
66
41
36
33
35
80
95
95
95
95
95
87
72
56
51
48
46
45
45
43
38

Precipitation Amount (mm)

0.7
0.6
0.5
0.2
0
0
0
0
0.4
0.7
1
1
0.8
0.8
0.6
0.4
0.2
0.2
0.1
0.1
0.1
0.1
0.1
0

Wind Speed/Direction (mph)

13
13
13
11
11
12
12
12
12
12
12
12
12
14
16
18
19
20
21
21
22
21
21
21

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-6
-5
-5
-3
-3
-3
-2
-2
-2
-5
-6
-7
-7
-7
-8
-12
-12
-12
-13
-13
-14
-14
-14
-15

Dew Point (°C)

1
1
2
2
2
2
0
-2
-4
-5
-6
-8
-9
-10
-11
-11
-10
-10
-10
-10
-10
-10
-9
-9

Relative Humidity (%)

98
98
98
96
98
98
89
81
73
72
71
69
66
65
62
66
67
71
70
71
73
77
82
85

Pressure (mb)

1004
1002
1001
1000
999
999
998
998
998
997
996
995
994
994
993
994
994
995
995
995
995
995
996
996

Ozone (du)

352
354
355
357
359
361
370
378
387
404
421
438
439
439
440
438
436
434
438
441
445
436
428
420

Monday 29

Waxing Gibbous 74%

12:26

03:25

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
05 Bad
06 OK

Sun - Rise: 07:42, Set: 16:36, Transit: 12:09. Moon - Rise: 12:26, Set: 03:25. Civil Dark: 17:09 - 07:09. Nautical Dark: 17:46 - 06:33. Astro Dark: 18:21 - 05:57

Total Clouds (% Sky Obscured)

92
90
95
98
100
98
96
94
93
93
93
93
93
93
93
94
95
74
53
32

Low Clouds (% Sky Obscured)

79
78
77
79
81
77
72
67
66
61
60
65
72
77
81
83
88
72
53
32

Medium Clouds (% Sky Obscured)

64
54
65
74
81
87
89
89
88
87
85
85
84
84
84
87
90
74
53
32

High Clouds (% Sky Obscured)

0
0
1
3
4
3
3
7
29
60
93
79
58
36
25
14
3
2
1
0

ISS Passover

Visibility (miles)

3
6
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

Precipitation Type

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

Precipitation Probability (%)

32
24
22
17
4
7
6
4
6
6
2
5
4
1
3
3
1
2
2
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)

19
18
17
17
16
15
16
16
16
16
16
16
15
15
15
15
15
15
15
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-15
-15
-15
-15
-16
-15
-16
-16
-17
-17
-17
-17
-17
-17
-17
-17
-17
-17
-17
-17

Dew Point (°C)

-10
-12
-14
-14
-14
-14
-14
-14
-14
-13
-13
-13
-13
-14
-14
-14
-14
-14
-14
-14

Relative Humidity (%)

77
68
63
64
67
68
68
71
71
72
72
72
72
71
72
72
72
72
73
73

Pressure (mb)

997
997
998
999
1000
1001
1001
1002
1003
1004
1004
1004
1005
1005
1005
1006
1007
1007
1008
1009

Ozone (du)

419
417
416
409
403
397
396
394
393
395
397
399
396
393
390
396
401
406
408
410

Forecast for Yarker, Lennox and Addington County, Canada (44.37,-76.77)

Generated: 23/12/25 11:35:27. Forecast: 23/12/25 to 29/12/25. Timezone: UTC-5.00