Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 31

Waxing Gibbous 92%

13:35

06:11

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 OK
04 OK
05 OK
06 OK

Sun - Rise: 07:44, Set: 16:38, Transit: 12:11. Moon - Rise: 13:35, Set: 06:11. Civil Dark: 17:12 - 07:11. Nautical Dark: 17:48 - 06:34. Astro Dark: 18:24 - 05:59

Total Clouds (% Sky Obscured)

82
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
94
28
8
25
2

Low Clouds (% Sky Obscured)

0
0
0
0
0
32
30
42
81
90
96
94
95
94
91
89
94
93
78
60
28
8
25
0

Medium Clouds (% Sky Obscured)

82
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
56
2
1
0
0

High Clouds (% Sky Obscured)

0
14
30
1
4
9
53
100
87
43
60
20
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
0
1
2
4
6
8
13
49
70
85
92
90
89
79
57
47
33
19
8
2
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.1
0.3
0.5
0.6
0.5
0.6
0.5
0.2
0.2
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-13
-13
-12
-9
-8
-8
-7
-7
-6
-7
-7
-7
-7
-7
-7
-8
-9
-10
-10
-12
-14
-16
-17
-18

Feels Like (°C)

-18
-18
-18
-15
-14
-13
-12
-11
-10
-10
-10
-11
-11
-11
-11
-14
-15
-15
-16
-18
-19
-19
-21
-21

Dew Point (°C)

-16
-16
-16
-14
-13
-12
-11
-11
-10
-8
-8
-7
-7
-8
-8
-10
-11
-12
-13
-15
-18
-19
-20
-21

Relative Humidity (%)

76
76
75
71
69
68
70
73
77
94
94
94
94
92
92
88
88
83
81
79
73
76
75
77

Pressure (mb)

1005
1005
1005
1005
1005
1003
1003
1002
1002
1001
1001
1000
999
999
998
998
999
1000
1001
1003
1005
1006
1007
1008

Ozone (du)

393
398
403
407
411
410
405
406
401
398
402
406
412
417
422
426
431
441
435
404
394
387
376
362

Thursday 1

Waxing Gibbous 98%

14:27

No Set

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
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:44, Set: 16:39, Transit: 12:12. Moon - Rise: 14:27, Set: No Set. Civil Dark: 17:12 - 07:11. Nautical Dark: 17:49 - 06:34. Astro Dark: 18:24 - 05:59

Total Clouds (% Sky Obscured)

4
6
4
5
6
0
2
40
50
55
86
82
85
89
92
100
100
100
93
90
89
74
77
73

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
62
50
57
71
77
88
87
68
65
66
65
65
64
63

Medium Clouds (% Sky Obscured)

0
1
1
2
2
0
0
0
0
0
5
13
18
12
21
60
61
70
58
87
77
3
2
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
9
9
9
6
1
0
2
2
3
7
7
7
5
3
3
3
4

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
2
15
16
14
2
8
11
20
12
2
1
1
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-22
-22
-22
-21
-20
-19
-18
-17
-17
-17
-18
-18
-18
-18
-19
-19
-19
-19
-18
-18
-18
-19
-19
-20

Dew Point (°C)

-22
-23
-22
-22
-22
-22
-20
-19
-17
-16
-17
-16
-17
-16
-17
-17
-16
-15
-15
-16
-16
-17
-17
-18

Relative Humidity (%)

76
76
73
66
61
56
54
60
69
76
81
86
88
88
88
90
88
90
90
90
90
88
88
87

Pressure (mb)

1009
1010
1010
1011
1011
1010
1010
1010
1010
1010
1010
1010
1010
1009
1009
1009
1009
1008
1008
1008
1008
1008
1008
1008

Ozone (du)

349
340
337
351
365
378
374
376
375
374
374
376
378
375
365
363
357
357
360
377
375
381
377
377

Friday 2

Waxing Gibbous 100%

15:34

07:23

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
05 Bad
06 Bad

Sun - Rise: 07:44, Set: 16:40, Transit: 12:12. Moon - Rise: 15:34, Set: 07:23. Civil Dark: 17:13 - 07:11. Nautical Dark: 17:50 - 06:34. Astro Dark: 18:25 - 05:59

Total Clouds (% Sky Obscured)

57
71
69
80
85
88
89
72
91
98
95
83
80
74
89
92
84
87
85
84
83
82
67
68

Low Clouds (% Sky Obscured)

57
63
63
66
63
68
71
44
76
98
93
69
72
70
71
81
80
83
81
80
79
78
67
68

Medium Clouds (% Sky Obscured)

0
0
0
7
9
8
13
12
20
33
32
33
44
0
43
31
46
47
32
18
3
2
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
2
2

ISS Passover

Visibility (miles)

9
9
9
9
9
9
8
9
9
9
9
9
9
9
9
9
9
5
1
5
5
8
6
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
1
2
4
1
16
5
9
13
8
2
1
0
0
5
9
6
7
7
8
7
5

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

Chance of Frost

Temperature (°C)

-16
-17
-15
-12
-10
-9
-8
-7
-8
-8
-10
-11
-11
-11
-11
-11
-11
-12
-11
-11
-12
-12
-12
-13

Feels Like (°C)

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

Dew Point (°C)

-18
-18
-17
-15
-13
-12
-12
-12
-12
-12
-13
-13
-13
-13
-13
-13
-13
-13
-13
-13
-13
-13
-14
-14

Relative Humidity (%)

86
86
82
81
80
78
71
67
71
74
81
85
85
86
86
86
86
88
88
88
86
88
88
86

Pressure (mb)

1008
1008
1008
1008
1008
1007
1006
1006
1006
1007
1007
1007
1008
1008
1009
1009
1009
1009
1009
1010
1010
1011
1011
1012

Ozone (du)

373
370
382
386
389
387
384
378
381
376
363
359
361
351
352
353
360
364
359
355
354
354
352
350

Saturday 3

Full Moon 99%

16:52

08:20

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
05 Bad
06 Bad

Sun - Rise: 07:44, Set: 16:41, Transit: 12:13. Moon - Rise: 16:52, Set: 08:20. Civil Dark: 17:14 - 07:11. Nautical Dark: 17:51 - 06:34. Astro Dark: 18:26 - 05:59

Total Clouds (% Sky Obscured)

65
68
49
67
67
67
58
56
51
62
72
78
84
87
94
96
98
100
99
98
97
97
97
96

Low Clouds (% Sky Obscured)

65
65
49
52
41
33
29
25
21
12
6
5
10
15
25
47
69
92
84
79
73
78
83
88

Medium Clouds (% Sky Obscured)

2
23
2
35
45
47
45
38
45
59
69
78
84
87
94
96
98
100
98
96
95
83
72
46

High Clouds (% Sky Obscured)

10
17
3
2
5
10
5
10
20
31
35
5
5
7
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

4
3
0
0
0
0
0
0
0
0
0
1
25
37
35
46
56
57
54
47
44
46
42
39

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
84
81
71
66
66
67
69
70
76
83
83
86
90
90
90
90
92
90
92
92
92
92
92

Pressure (mb)

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

Ozone (du)

347
344
346
346
349
351
350
351
353
353
353
350
346
340
342
344
341
341
341
342
341
344
345
347

Sunday 4

Waning Gibbous 95%

18:14

09:03

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

Sun - Rise: 07:44, Set: 16:42, Transit: 12:13. Moon - Rise: 18:14, Set: 09:03. Civil Dark: 17:15 - 07:11. Nautical Dark: 17:52 - 06:34. Astro Dark: 18:27 - 05:59

Total Clouds (% Sky Obscured)

96
95
95
94
92
78
54
34
30
29
24
21
16
17
18
14
23
37
38
44
55
66
79
92

Low Clouds (% Sky Obscured)

86
85
84
82
81
78
54
34
30
29
24
21
16
17
18
14
23
37
38
44
55
66
79
83

Medium Clouds (% Sky Obscured)

12
11
10
6
4
0
0
0
0
0
0
0
6
7
11
9
14
15
18
34
47
62
73
87

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
3
6
29
44
55
66
79
92

ISS Passover

Visibility (miles)

0
0
0
2
8
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Snow

Precipitation Probability (%)

44
30
25
21
24
21
17
12
2
8
7
4
6
4
1
1
1
0
1
1
0
21
31
39

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-12
-12
-11
-10
-9
-8
-7
-7
-7
-7
-9
-10
-11
-12
-13
-13
-14
-14
-15
-14
-14
-14
-14
-13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
92
92
86
83
72
67
68
68
70
74
78
81
81
81
83
83
81
81
81
81
79
81
79

Pressure (mb)

1017
1017
1018
1018
1018
1018
1018
1018
1018
1019
1020
1020
1021
1022
1022
1022
1022
1023
1023
1023
1023
1022
1022
1022

Ozone (du)

348
351
352
352
352
353
358
358
356
355
357
360
355
354
353
352
351
349
347
347
348
348
349
350

Monday 5

Waning Gibbous 89%

19:34

09:34

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
05 Bad
06 Bad

Sun - Rise: 07:44, Set: 16:43, Transit: 12:14. Moon - Rise: 19:34, Set: 09:34. Civil Dark: 17:16 - 07:11. Nautical Dark: 17:53 - 06:34. Astro Dark: 18:28 - 05:59

Total Clouds (% Sky Obscured)

87
85
81
81
78
75
83
91
100
98
98
97
98
99
100
100
99
98
98
95
92
93
95
97

Low Clouds (% Sky Obscured)

87
85
81
81
78
75
83
91
100
98
98
97
98
98
100
98
96
97
98
95
92
93
95
97

Medium Clouds (% Sky Obscured)

79
73
67
67
63
60
68
72
69
46
31
13
6
4
0
10
19
32
23
17
7
17
26
36

High Clouds (% Sky Obscured)

87
85
81
57
27
1
7
15
22
13
10
1
1
0
0
0
1
2
7
13
17
21
24
26

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

39
36
32
36
40
44
37
32
28
29
28
25
23
21
19
18
16
13
11
10
7
13
16
19

Precipitation Amount (mm)

0.1
0
0
0
0.1
0.2
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
5
5
6
8
7
7
6
6
5
5
5
5
6
5
5
4
4
4
3
3
2

Chance of Frost

Temperature (°C)

-14
-12
-11
-9
-8
-7
-6
-5
-5
-5
-6
-7
-8
-7
-7
-6
-7
-8
-10
-9
-9
-9
-8
-8

Feels Like (°C)

-16
-17
-17
-17
-17
-16
-16
-8
-9
-9
-8
-8
-7
-12
-12
-12
-11
-10
-11
-13
-12
-11
-11
-11

Dew Point (°C)

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

Relative Humidity (%)

79
79
78
77
78
80
79
82
87
90
92
92
92
94
92
92
92
92
90
90
90
90
90
90

Pressure (mb)

1021
1021
1020
1019
1018
1017
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015

Ozone (du)

350
351
352
352
352
353
353
352
350
349
350
350
351
351
352
353
354
356
357
357
356
356
352
349

Tuesday 6

Waning Gibbous 81%

20:49

09:59

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

Sun - Rise: 07:44, Set: 16:44, Transit: 12:14. Moon - Rise: 20:49, Set: 09:59. Civil Dark: 17:17 - 07:11. Nautical Dark: 17:54 - 06:34. Astro Dark: 18:29 - 05:59

Total Clouds (% Sky Obscured)

97
98
99
99
99
98
98
97
97
96
96
96
96
97
99
99
95
83

Low Clouds (% Sky Obscured)

95
90
86
87
87
87
88
89
91
91
90
89
88
85
84
73
62
51

Medium Clouds (% Sky Obscured)

47
57
67
76
86
96
93
87
75
86
90
92
92
90
92
90
83
79

High Clouds (% Sky Obscured)

52
76
99
99
99
98
95
80
70
70
70
70
70
70
70
75
65
50

ISS Passover

Visibility (miles)

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

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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Light Rain

Precipitation Probability (%)

24
26
25
29
32
32
46
60
74
79
76
79
92
95
95
95
86
75

Precipitation Amount (mm)

0
0
0
0
0
0
0.1
0.3
0.4
0.5
0.4
0.5
0.6
0.6
0.6
0.6
0.5
0.4

Wind Speed/Direction (mph)

2
1
2
4
4
4
6
7
7
7
7
8
8
8
8
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-11
-11
-11
-12
-11
-12
-11
-5
-6
-7
-7
-7
-7
-5
-6
-6
-6
-6

Dew Point (°C)

-8
-7
-6
-6
-5
-4
-3
-3
-3
-2
-2
-2
-2
-2
-2
-2
-2
-2

Relative Humidity (%)

90
90
90
90
92
92
94
96
96
98
98
98
98
98
100
98
98
98

Pressure (mb)

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

Ozone (du)

345
343
340
338
339
340
341
340
338
336
336
337
337
338
339
340
347
354

Forecast for Erinsville, Lennox and Addington County, Canada (44.48,-77.05)

Generated: 31/12/25 07:11:04. Forecast: 31/12/25 to 06/01/26. Timezone: UTC-5.00