Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 23

Waxing Crescent 21%

10:45

20:05

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 OK
08 Bad
09 OK
10 OK
11 OK
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 07:43, Set: 16:33, Transit: 12:08. Moon - Rise: 10:45, Set: 20:05. Civil Dark: 17:06 - 07:09. Nautical Dark: 17:43 - 06:32. Astro Dark: 18:18 - 05:57

Total Clouds (% Sky Obscured)

100
97
100
100
100
100
91
72
76
91
57
54
51
42
47
47
44
42
87
79
82
97
90
93

Low Clouds (% Sky Obscured)

82
97
97
100
100
100
88
59
70
91
57
54
51
42
47
47
44
42
60
43
40
14
0
0

Medium Clouds (% Sky Obscured)

66
24
16
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
25
37
53
97
87
91

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
58
38
55
10
41
1

ISS Passover

Visibility (miles)

0
0
0
0
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

26
0
1
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 (%)

1
0
0
33
24
26
8
9
6
2
1
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)

5
5
6
7
8
10
10
11
12
13
14
15
13
13
11
10
10
8
7
7
5
4
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

1
1
0
0
1
-1
-2
-2
-2
-3
-4
-5
-7
-8
-9
-10
-10
-10
-10
-9
-9
-8
-7
-7

Relative Humidity (%)

98
98
98
98
96
86
78
80
78
74
75
76
78
77
77
77
73
71
69
69
69
70
84
87

Pressure (mb)

1012
1012
1011
1011
1011
1011
1011
1011
1012
1013
1014
1016
1018
1020
1022
1024
1026
1026
1026
1026
1026
1026
1026
1026

Ozone (du)

309
313
317
323
327
328
331
336
339
335
331
328
318
321
326
330
327
326
325
327
325
323
323
322

Wednesday 24

Waxing Crescent 30%

11:05

21:15

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
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 07:43, Set: 16:34, Transit: 12:08. Moon - Rise: 11:05, Set: 21:15. Civil Dark: 17:07 - 07:10. Nautical Dark: 17:44 - 06:33. Astro Dark: 18:19 - 05:57

Total Clouds (% Sky Obscured)

89
92
94
100
100
100
100
98
96
100
100
100
100
100
100
87
86
98
100
98
58
69
72
72

Low Clouds (% Sky Obscured)

0
0
0
0
21
36
67
0
0
31
36
24
0
47
69
46
84
88
94
98
58
63
57
41

Medium Clouds (% Sky Obscured)

85
88
90
100
99
100
100
98
96
95
96
87
48
59
19
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

1
6
33
100
100
100
75
75
26
54
51
50
100
99
30
25
5
79
100
40
7
17
35
40

ISS Passover

Visibility (miles)

9
9
9
9
9
9
8
9
4
9
9
9
9
9
1
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
1
19
6
2
7
4
12
2
1
4
1
2
11
5
10
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)

2
2
2
3
4
4
5
5
5
4
3
3
2
2
3
4
7
10
11
12
12
11
10
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-7
-7
-7
-7
-7
-7
-7
-6
-6
-6
-6
-5
-5
-5
-5
-5
-5
-5
-6
-7
-9
-9
-11
-12

Relative Humidity (%)

90
89
90
87
90
89
89
90
90
90
92
92
92
94
91
89
84
78
74
72
69
72
70
70

Pressure (mb)

1027
1026
1026
1025
1024
1023
1022
1021
1020
1019
1018
1017
1017
1016
1016
1017
1017
1018
1018
1019
1020
1022
1023
1025

Ozone (du)

321
322
323
322
322
323
322
321
315
315
320
335
347
359
361
358
364
363
362
362
357
352
349
345

Thursday 25

Waxing Crescent 41%

11:24

22:25

18 Bad
19 Bad
20 Bad
21 Bad
22 OK
23 Bad
00 OK
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

Sun - Rise: 07:43, Set: 16:34, Transit: 12:09. Moon - Rise: 11:24, Set: 22:25. Civil Dark: 17:08 - 07:10. Nautical Dark: 17:45 - 06:33. Astro Dark: 18:19 - 05:58

Total Clouds (% Sky Obscured)

72
67
66
55
44
61
36
63
56
77
90
100
91
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

34
20
11
21
18
0
0
0
0
0
0
0
0
0
28
32
47
55
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

10
26
23
18
23
11
16
20
39
46
51
60
76
79
99
100
100
100
95
100
100
80
100
100

High Clouds (% Sky Obscured)

50
46
6
28
3
43
11
62
27
61
65
99
87
99
100
100
100
100
100
100
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 (%)

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
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
18
51
72
93
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.7
0.6
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
68
69
69
69
69
69
69
69
68
66
66
65
68
68
64
61
60
57
56
57
61
66
69

Pressure (mb)

1026
1027
1028
1028
1028
1028
1029
1028
1029
1029
1029
1029
1028
1028
1027
1027
1027
1025
1022
1021
1020
1018
1018
1017

Ozone (du)

335
333
331
330
331
329
324
321
319
316
315
313
313
316
318
323
318
318
315
314
313
317
318
318

Friday 26

Waxing Crescent 38%

11:43

23:36

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
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 07:43, Set: 16:35, Transit: 12:09. Moon - Rise: 11:43, Set: 23:36. Civil Dark: 17:08 - 07:10. Nautical Dark: 17:45 - 06:33. Astro Dark: 18:20 - 05:58

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
85
91
96
90
82
77
80
73
75
81
79
78
80
85
90
89
86

Low Clouds (% Sky Obscured)

100
100
100
100
98
96
94
85
87
85
80
77
73
72
69
69
72
76
75
75
74
81
76
70

Medium Clouds (% Sky Obscured)

100
98
97
96
97
98
99
59
58
47
29
16
2
2
1
0
1
2
2
0
45
50
50
50

High Clouds (% Sky Obscured)

100
77
50
20
5
0
0
0
0
0
0
0
0
1
1
11
18
20
20
20
25
25
35
4

ISS Passover

Visibility (miles)

9
6
4
1
1
1
4
4
7
1
1
3
3
2
2
3
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
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
95
88
70
54
41
35
29
31
24
19
13
8
7
6
3
3
1
0
0
0
1

Precipitation Amount (mm)

0.7
0.6
0.8
0.8
0.7
0.4
0.2
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-11
-11
-11
-12
-12
-12
-12
-12
-12
-12
-12
-12
-12
-12
-11
-11
-10
-8
-8
-7
-7
-7
-7
-8

Feels Like (°C)

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

Dew Point (°C)

-16
-15
-15
-15
-14
-14
-14
-14
-14
-14
-14
-14
-13
-13
-13
-12
-12
-11
-11
-10
-10
-9
-9
-10

Relative Humidity (%)

70
73
75
78
81
83
83
83
85
85
86
86
88
88
88
86
83
82
79
79
77
80
83
85

Pressure (mb)

1016
1015
1015
1015
1014
1015
1015
1015
1016
1016
1017
1017
1018
1019
1020
1021
1022
1022
1022
1022
1022
1022
1022
1023

Ozone (du)

318
323
326
327
331
338
342
342
337
334
336
342
345
351
358
361
358
354
352
349
343
337
334
334

Saturday 27

First Quarter 52%

12:03

00:49

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
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 07:44, Set: 16:36, Transit: 12:10. Moon - Rise: 12:03, Set: 00:49. Civil Dark: 17:09 - 07:10. Nautical Dark: 17:46 - 06:34. Astro Dark: 18:21 - 05:58

Total Clouds (% Sky Obscured)

82
53
94
55
57
91
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

65
53
85
55
57
91
100
100
100
100
100
100
100
92
83
74
79
85
91
90
89
89
92
96

Medium Clouds (% Sky Obscured)

50
2
2
3
3
2
5
12
34
71
35
89
97
98
99
99
98
97
95
85
79
76
86
93

High Clouds (% Sky Obscured)

3
2
35
2
0
2
46
63
41
100
100
100
100
100
100
100
99
98
98
99
100
100
74
43

ISS Passover

Visibility (miles)

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

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Frozen rai
Frozen rai
Frozen rai

Precipitation Probability (%)

0
1
2
1
4
2
0
1
2
1
4
7
7
10
15
26
31
30
27
48
63
76
89
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
0.3
0.5
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-11
-12
-12
-13
-12
-12
-12
-12
-12
-11
-11
-10
-9
-9
-8
-8
-7
-6
-5
-4
-4
-4
-4
-4

Relative Humidity (%)

85
87
85
85
86
86
86
85
85
87
87
88
90
92
90
90
92
92
94
94
94
94
96
96

Pressure (mb)

1023
1023
1024
1024
1024
1023
1022
1022
1022
1021
1020
1020
1019
1018
1017
1016
1015
1013
1012
1010
1008
1007
1006
1004

Ozone (du)

336
336
335
334
334
334
334
330
331
333
336
338
339
340
343
345
348
350
352
354
355
356
357
365

Sunday 28

Waxing Gibbous 63%

12:26

02:06

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
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 07:44, Set: 16:37, Transit: 12:10. Moon - Rise: 12:26, Set: 02:06. Civil Dark: 17:10 - 07:11. Nautical Dark: 17:47 - 06:34. Astro Dark: 18:21 - 05:58

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
98
92
85
79
86
92
98
99
99
100
100
100
100
98
95
90
92
95

Low Clouds (% Sky Obscured)

100
100
100
100
100
99
98
91
82
73
76
79
83
82
87
88
87
90
93
88
83
78
75
72

Medium Clouds (% Sky Obscured)

100
100
100
100
88
76
65
49
31
11
18
28
30
24
36
44
70
79
85
77
62
53
63
77

High Clouds (% Sky Obscured)

15
10
5
0
7
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
14

ISS Passover

Visibility (miles)

4
6
5
3
2
3
3
4
4
4
3
2
1
0
0
1
1
2
3
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

Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Snow
Snow
Snow
Snow
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None

Precipitation Probability (%)

95
95
91
94
83
75
73
67
55
37
38
42
49
51
54
57
54
52
51
42
33
19
18
17

Precipitation Amount (mm)

0.7
0.5
0.5
0.7
0.5
0.4
0.4
0.3
0.2
0
0.1
0.2
0.3
0.3
0.4
0.5
0.3
0.3
0.3
0.1
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-3
-3
-2
-1
-0
-1
-2
-3
-3
-4
-5
-6
-6
-7
-7
-7
-8
-8
-8
-8
-9
-10
-11
-11

Feels Like (°C)

-7
-7
-7
-6
-5
-4
-2
-1
-8
-8
-9
-10
-11
-12
-13
-13
-13
-13
-13
-13
-14
-15
-15
-16

Dew Point (°C)

-3
-3
-3
-2
-2
-3
-4
-6
-7
-7
-7
-8
-8
-8
-9
-10
-10
-11
-11
-12
-13
-14
-15
-15

Relative Humidity (%)

98
96
96
92
91
86
83
78
78
79
81
82
85
89
85
83
82
79
75
72
72
72
72
75

Pressure (mb)

1003
1002
1001
999
998
997
997
996
997
997
997
997
997
997
996
996
996
995
994
993
995
996
997
997

Ozone (du)

374
383
380
378
375
388
400
413
421
429
437
433
429
424
419
414
409
412
415
417
416
415
413
417

Monday 29

Waxing Gibbous 74%

12:56

03:27

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

Sun - Rise: 07:44, Set: 16:38, Transit: 12:11. Moon - Rise: 12:56, Set: 03:27. Civil Dark: 17:11 - 07:11. Nautical Dark: 17:47 - 06:34. Astro Dark: 18:22 - 05:59

Total Clouds (% Sky Obscured)

98
99
100
100
100
99
98
98
99
100
100
100
100
99
99
100
98
96
93

Low Clouds (% Sky Obscured)

69
71
74
75
73
73
73
78
84
89
87
84
82
82
81
82
76
69
63

Medium Clouds (% Sky Obscured)

92
95
97
99
98
96
95
88
80
76
82
91
100
97
94
93
88
82
76

High Clouds (% Sky Obscured)

19
17
12
7
5
2
0
1
2
3
22
41
61
64
67
70
70
56
40

ISS Passover

Visibility (miles)

3
0
3
6
8
6
3
0
3
6
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

Precipitation Type

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

Precipitation Probability (%)

17
20
22
22
20
19
16
19
20
20
24
28
31
27
21
13
11
9
3

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

13
13
13
13
14
13
13
13
13
13
13
13
13
13
13
14
14
14
14

Chance of Frost

Temperature (°C)

-12
-12
-12
-12
-13
-12
-12
-12
-12
-12
-12
-11
-11
-11
-11
-11
-10
-10
-9

Feels Like (°C)

-17
-17
-19
-19
-19
-19
-19
-19
-18
-18
-19
-19
-19
-19
-17
-17
-17
-16
-17

Dew Point (°C)

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

Relative Humidity (%)

78
81
81
79
76
78
81
83
79
76
73
73
73
73
73
73
73
75
75

Pressure (mb)

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

Ozone (du)

421
426
427
429
430
428
426
424
425
426
427
423
419
415
414
414
414
415
417

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

Generated: 23/12/25 18:24:03. Forecast: 23/12/25 to 29/12/25. Timezone: UTC-5.00