Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 4

Full Moon 100%

15:37

08:15

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

Sun - Rise: 07:07, Set: 16:15, Transit: 11:41. Moon - Rise: 15:37, Set: 08:15. Civil Dark: 16:47 - 06:35. Nautical Dark: 17:22 - 06:00. Astro Dark: 17:57 - 05:25

Total Clouds (% Sky Obscured)

96
84
100
39
23
54
37
15
0
0
0
0
4
4
4
13
40
45
38
38
14
68
66
66

Low Clouds (% Sky Obscured)

80
84
89
29
23
52
35
9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

5
28
24
0
0
0
0
0
0
0
0
0
1
2
2
3
35
21
38
32
13
65
66
66

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
3
3
2
11
38
45
30
6
3
3
4
4

ISS Passover

Visibility (miles)

1
8
5
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 (%)

26
21
29
20
3
1
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)

12
12
13
15
13
13
14
13
12
11
9
8
7
4
3
2
2
2
2
2
3
3
4
5

Chance of Frost

Temperature (°C)

-1
-2
-4
-4
-7
-9
-9
-11
-13
-14
-15
-15
-15
-16
-16
-17
-17
-17
-17
-17
-15
-12
-10
-9

Feels Like (°C)

-6
-8
-10
-11
-12
-13
-16
-17
-18
-18
-18
-19
-19
-18
-18
-18
-19
-21
-21
-20
-19
-14
-14
-11

Dew Point (°C)

-4
-8
-8
-9
-12
-15
-15
-16
-18
-20
-21
-22
-22
-21
-21
-21
-21
-21
-22
-22
-22
-21
-19
-18

Relative Humidity (%)

78
64
69
68
66
61
61
63
62
60
58
56
58
61
67
71
71
69
69
63
55
49
47
46

Pressure (mb)

1011
1012
1013
1015
1018
1020
1022
1023
1024
1025
1026
1026
1026
1027
1027
1028
1028
1028
1029
1029
1028
1028
1026
1025

Ozone (du)

383
375
369
368
372
377
377
371
370
370
370
370
368
364
363
361
359
358
354
353
354
354
348
344

Friday 5

Waning Gibbous 97%

16:38

09:20

13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
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

Sun - Rise: 07:08, Set: 16:15, Transit: 11:41. Moon - Rise: 16:38, Set: 09:20. Civil Dark: 16:47 - 06:36. Nautical Dark: 17:22 - 06:01. Astro Dark: 17:57 - 05:26

Total Clouds (% Sky Obscured)

100
83
85
69
65
89
91
98
69
29
36
38
59
69
65
89
100
96
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
2
3
3
12
14
22
32
36
33
34
43
36
30
29
27
27
25
32
83
86

Medium Clouds (% Sky Obscured)

100
82
81
57
33
85
90
82
39
3
1
0
2
6
42
68
99
81
99
100
100
100
100
100

High Clouds (% Sky Obscured)

16
5
54
43
60
55
45
30
26
3
0
4
58
55
65
88
100
95
100
81
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
7
5
5
5
7
5
7
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
2
0
0
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)

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

Chance of Frost

Temperature (°C)

-7
-7
-7
-8
-9
-10
-11
-11
-11
-11
-11
-12
-12
-12
-11
-11
-10
-10
-10
-8
-6
-4
-2
-1

Feels Like (°C)

-10
-12
-11
-12
-13
-14
-14
-14
-14
-14
-13
-13
-13
-13
-13
-13
-13
-14
-14
-12
-10
-8
-6
-5

Dew Point (°C)

-17
-17
-15
-13
-11
-12
-13
-12
-13
-12
-13
-13
-13
-13
-13
-13
-12
-12
-12
-10
-9
-7
-6
-4

Relative Humidity (%)

44
46
52
71
85
86
85
88
86
90
90
88
88
88
88
88
86
83
86
83
79
78
78
80

Pressure (mb)

1023
1022
1021
1021
1021
1021
1021
1020
1020
1019
1019
1018
1018
1018
1017
1017
1016
1016
1016
1015
1015
1014
1013
1012

Ozone (du)

335
333
330
329
330
328
326
325
321
323
325
324
325
320
318
314
309
306
303
302
301
299
299
301

Saturday 6

Waning Gibbous 92%

17:51

10:10

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 OK
03 OK
04 OK
05 OK
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 07:09, Set: 16:14, Transit: 11:42. Moon - Rise: 17:51, Set: 10:10. Civil Dark: 16:47 - 06:37. Nautical Dark: 17:22 - 06:01. Astro Dark: 17:57 - 05:27

Total Clouds (% Sky Obscured)

82
69
64
44
80
88
74
69
72
73
47
63
56
31
17
32
29
50
88
90
90
90
94
100

Low Clouds (% Sky Obscured)

71
57
24
5
19
36
24
22
18
31
44
63
56
29
17
31
25
25
24
5
13
40
46
43

Medium Clouds (% Sky Obscured)

47
30
20
21
61
74
53
15
30
35
5
0
0
0
0
0
0
0
14
59
80
76
75
97

High Clouds (% Sky Obscured)

25
15
15
15
25
15
15
20
25
30
0
2
0
0
0
0
0
25
78
78
4
24
44
100

ISS Passover

Visibility (miles)

9
9
9
9
9
8
8
8
8
7
8
7
8
8
9
7
5
5
5
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
2
1
1
2
2
2
2
3
3
1
3
2
1
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
4
3
2
2
2
2
3
3
3
3
3
3
2
4
3
3
3
3
2
3
3
3
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
77
83
94
96
98
96
96
96
98
94
91
91
94
94
94
94
94
94
92
84
75
68
64

Pressure (mb)

1011
1010
1010
1010
1011
1011
1011
1012
1012
1012
1013
1013
1014
1014
1015
1016
1016
1017
1018
1019
1019
1020
1019
1019

Ozone (du)

302
300
298
301
304
307
310
312
311
311
314
316
318
321
323
322
325
325
324
325
325
318
316
317

Sunday 7

Waning Gibbous 84%

19:09

10:47

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
11 OK
12 OK

Sun - Rise: 07:10, Set: 16:14, Transit: 11:42. Moon - Rise: 19:09, Set: 10:47. Civil Dark: 16:47 - 06:38. Nautical Dark: 17:22 - 06:02. Astro Dark: 17:57 - 05:28

Total Clouds (% Sky Obscured)

100
100
100
99
96
93
86
80
75
81
83
85
90
95
100
89
79
66
69
73
76
63
38
29

Low Clouds (% Sky Obscured)

38
11
11
17
27
75
86
80
75
81
83
85
90
90
87
81
75
66
63
62
45
40
7
8

Medium Clouds (% Sky Obscured)

99
100
100
97
92
86
82
72
64
62
65
64
56
53
39
24
12
10
27
49
72
49
22
0

High Clouds (% Sky Obscured)

88
76
59
9
14
1
1
0
0
1
2
3
34
64
95
83
66
49
55
60
66
53
38
26

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
8
4
3
0
0
0
0
0
0
0
0
0
0
0
8
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
2
6
11
25
42
81
85
95
95
95
95
78
64
57
50
27
9
5
3

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.5
0.5
0.8
1.2
1.1
0.7
0.3
0.2
0.2
0.2
0
0
0
0

Wind Speed/Direction (mph)

4
4
4
3
3
2
3
3
2
3
2
2
2
2
4
5
5
6
7
8
12
12
13
13

Chance of Frost

Temperature (°C)

-1
-1
-2
-2
-3
-4
-3
-3
-3
-3
-4
-4
-4
-4
-4
-4
-5
-5
-7
-7
-8
-8
-7
-7

Feels Like (°C)

-5
-5
-5
-5
-6
-6
-6
-6
-6
-6
-7
-6
-7
-6
-7
-7
-7
-9
-10
-11
-14
-15
-14
-13

Dew Point (°C)

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

Relative Humidity (%)

63
64
71
82
91
89
89
82
79
86
91
96
94
96
94
96
96
94
96
94
83
75
73
70

Pressure (mb)

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

Ozone (du)

316
316
315
315
314
314
317
321
323
324
325
328
331
336
336
339
341
348
352
354
354
357
356
358

Monday 8

Waning Gibbous 75%

20:28

11:16

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

Sun - Rise: 07:11, Set: 16:14, Transit: 11:43. Moon - Rise: 20:28, Set: 11:16. Civil Dark: 16:47 - 06:39. Nautical Dark: 17:22 - 06:03. Astro Dark: 17:57 - 05:28

Total Clouds (% Sky Obscured)

32
19
3
0
0
0
0
0
0
0
3
6
2
2
3
5
6
12
38
67
90
93
97
100

Low Clouds (% Sky Obscured)

22
10
2
0
0
0
0
0
0
0
1
1
1
0
0
0
0
0
0
2
3
3
4
5

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
1
1
3
5
6
12
38
67
90
93
97
98

High Clouds (% Sky Obscured)

17
8
0
0
0
0
0
0
0
0
2
3
2
2
3
3
3
3
3
3
3
27
52
69

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 (%)

1
1
0
0
0
0
0
0
0
0
0
2
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)

12
11
11
10
9
7
7
6
6
4
3
3
2
2
2
2
1
1
1
2
2
3
4
4

Chance of Frost

Temperature (°C)

-7
-7
-8
-9
-10
-11
-11
-12
-13
-14
-15
-15
-15
-16
-16
-17
-17
-16
-17
-15
-12
-10
-9
-8

Feels Like (°C)

-13
-14
-14
-14
-14
-14
-15
-15
-16
-16
-17
-17
-17
-18
-18
-18
-18
-18
-18
-19
-17
-17
-16
-16

Dew Point (°C)

-11
-12
-12
-14
-15
-15
-16
-16
-17
-17
-17
-17
-18
-18
-19
-19
-19
-19
-19
-18
-17
-16
-15
-14

Relative Humidity (%)

70
70
70
68
68
69
70
70
71
74
79
82
82
82
82
84
83
82
83
76
69
63
62
62

Pressure (mb)

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

Ozone (du)

357
347
343
342
341
342
352
353
353
354
357
359
354
354
354
354
358
363
367
378
388
399
407
414

Tuesday 9

Waning Gibbous 65%

21:42

11:39

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
11 Bad
12 Bad

Sun - Rise: 07:12, Set: 16:14, Transit: 11:43. Moon - Rise: 21:42, Set: 11:39. Civil Dark: 16:47 - 06:40. Nautical Dark: 17:22 - 06:04. Astro Dark: 17:57 - 05:29

Total Clouds (% Sky Obscured)

97
94
90
91
94
98
98
98
98
95
91
88
94
99
100
100
100
100
100
100
100
96
95
93

Low Clouds (% Sky Obscured)

0
0
0
25
51
73
64
55
46
44
46
53
49
46
41
41
41
41
44
46
48
56
61
61

Medium Clouds (% Sky Obscured)

91
83
75
83
92
98
98
98
98
95
91
88
94
99
100
100
100
100
100
100
100
96
92
89

High Clouds (% Sky Obscured)

72
60
49
43
42
37
30
61
75
77
56
82
74
84
100
99
99
98
99
100
100
77
60
43

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 (%)

0
0
0
0
0
1
8
12
15
16
15
9
8
6
1
4
3
0
1
1
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
5
6
5
5
5
5
5
4
4
4
4
3
3
3
2
2
2
3
3
4
4
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

61
68
76
83
87
87
90
88
87
83
83
85
85
87
88
90
92
90
88
87
82
79
79
80

Pressure (mb)

1020
1019
1019
1018
1018
1017
1017
1016
1016
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1012

Ozone (du)

422
415
409
402
395
389
382
376
370
365
362
360
357
356
354
353
351
350
348
347
345
344
345
346

Wednesday 10

Waning Gibbous 55%

22:52

11:58

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: 07:13, Set: 16:14, Transit: 11:44. Moon - Rise: 22:52, Set: 11:58. Civil Dark: 16:47 - 06:40. Nautical Dark: 17:23 - 06:05. Astro Dark: 17:57 - 05:30

Total Clouds (% Sky Obscured)

96
99
99
100
100
99
99
99
99
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

67
75
79
83
84
89
88
88
92
94
96
98
98
99
99
99
99
99

Medium Clouds (% Sky Obscured)

92
95
99
99
99
98
99
99
99
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

36
33
27
26
16
10
23
46
70
83
93
100
100
100
100
69
38
7

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
6
4
1
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
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

0
0
1
9
13
16
42
58
69
91
95
95
95
95
87
80
69
49

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.2
0.3
0.6
0.7
0.9
0.8
0.7
0.5
0.5
0.4
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

1
0
-1
-1
-1
-1
-1
-1
-1
-1
-1
-0
-0
-0
0
0
1
1

Feels Like (°C)

-7
-3
-3
-4
-4
-4
-4
-4
-3
-3
-3
-3
-3
-2
-3
-2
-2
-2

Dew Point (°C)

-2
-2
-2
-2
-2
-2
-1
-1
-1
-1
-1
-1
-1
-0
-0
0
1
1

Relative Humidity (%)

80
86
89
92
94
96
98
98
98
98
98
98
98
100
98
100
100
100

Pressure (mb)

1012
1011
1011
1011
1011
1010
1010
1009
1008
1007
1006
1005
1004
1003
1002
1002
1001
1001

Ozone (du)

347
344
341
338
337
337
336
336
335
335
334
333
332
334
336
338
340
341

Forecast for Chester, Windsor, United States of America (43.26,-72.60)

Generated: 04/12/25 13:02:17. Forecast: 04/12/25 to 10/12/25. Timezone: UTC-5.00