Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 5

Waning Gibbous 97%

16:38

09:20

15 OK
16 Bad
17 OK
18 Good
19 OK
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

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)

27
58
19
7
31
67
93
94
88
85
92
98
100
100
100
100
100
99
98
98
99
98
80
57

Low Clouds (% Sky Obscured)

0
0
1
1
7
5
2
50
62
57
57
73
84
91
78
82
82
65
77
78
64
68
55
44

Medium Clouds (% Sky Obscured)

19
45
12
3
24
65
88
75
27
28
2
17
100
93
84
98
100
80
76
84
94
88
25
18

High Clouds (% Sky Obscured)

27
58
11
3
4
7
60
45
1
5
49
55
97
82
98
91
95
96
85
87
70
75
47
0

ISS Passover

Visibility (miles)

9
9
9
9
8
7
9
9
9
9
5
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
0
0
0
0
1
3
3
3
5
6
8
7
7
3
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)

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

Chance of Frost

Temperature (°C)

-6
-8
-9
-10
-11
-11
-12
-11
-11
-11
-11
-10
-10
-10
-9
-9
-8
-7
-6
-4
-2
-1
0
1

Feels Like (°C)

-10
-11
-13
-13
-13
-14
-13
-14
-14
-14
-13
-13
-13
-13
-12
-12
-12
-11
-9
-8
-6
-4
-3
-3

Dew Point (°C)

-14
-12
-12
-12
-13
-13
-13
-13
-13
-13
-12
-12
-12
-12
-11
-10
-10
-9
-9
-7
-6
-5
-4
-4

Relative Humidity (%)

55
71
83
88
88
88
88
85
81
86
88
85
86
85
85
87
85
82
80
79
76
75
74
71

Pressure (mb)

1021
1020
1020
1020
1020
1020
1019
1019
1018
1018
1017
1017
1016
1016
1015
1015
1015
1014
1014
1014
1013
1012
1011
1010

Ozone (du)

324
323
324
325
323
322
322
324
329
328
326
327
324
322
321
319
318
321
326
326
325
322
320
320

Saturday 6

Waning Gibbous 92%

17:51

10:10

15 OK
16 Bad
17 OK
18 Bad
19 OK
20 OK
21 Bad
22 Bad
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

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)

48
44
27
52
27
32
56
42
43
36
39
43
56
94
100
61
57
53
97
97
100
100
100
100

Low Clouds (% Sky Obscured)

27
8
19
22
20
27
56
39
41
34
33
39
38
39
37
19
20
3
19
62
66
67
66
73

Medium Clouds (% Sky Obscured)

29
37
9
49
7
0
0
0
0
0
0
1
21
50
100
61
57
53
96
95
92
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
1
0
0
0
2
1
3
56
41
42
35
29
62
54
100
25
25
15

ISS Passover

Visibility (miles)

9
9
9
9
9
8
4
6
6
6
6
5
5
5
5
6
8
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

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
0
0
0
5
1
1
1
2
2
3
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
91
94
94
94
94
94
96
94
96
94
96
94
94
96
91
92
90
84
81
78
75
72
74

Pressure (mb)

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

Ozone (du)

318
315
316
316
315
312
314
316
316
317
317
317
318
320
323
324
325
325
324
323
320
322
321
322

Sunday 7

Waning Gibbous 84%

19:09

10:47

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 OK
05 Good
06 Good
07 Good
08 Good
09 Good
10 Good
11 Good
12 OK
13 OK
14 Good

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
97
94
92
94
96
97
93
92
66
55
60
41
20
10
0
0
3
1
8
13
20
21
18

Low Clouds (% Sky Obscured)

81
67
87
89
93
96
97
93
82
62
55
60
34
16
7
0
0
2
1
0
0
0
0
0

Medium Clouds (% Sky Obscured)

100
91
76
73
53
79
89
82
77
48
33
35
8
0
0
0
0
0
0
8
13
20
17
10

High Clouds (% Sky Obscured)

14
14
25
15
15
12
0
0
0
0
0
0
0
0
0
0
0
0
0
8
13
18
15
12

ISS Passover

Visibility (miles)

9
4
3
3
0
0
0
0
1
0
0
0
7
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
4
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

3
13
5
16
32
51
62
47
35
32
44
40
12
4
2
1
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-5
-4
-4
-5
-5
-5
-5
-5
-5
-5
-6
-8
-11
-13
-14
-16
-17
-16
-15
-15
-16
-16
-16
-16

Relative Humidity (%)

79
92
96
94
96
96
96
96
96
98
96
92
79
75
72
59
59
62
61
58
51
48
47
49

Pressure (mb)

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

Ozone (du)

321
323
324
327
332
335
337
339
342
344
350
353
355
358
361
362
359
361
361
357
355
349
344
341

Monday 8

Waning Gibbous 75%

20:28

11:16

15 Good
16 OK
17 OK
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
11 OK
12 OK
13 Bad
14 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)

15
27
45
93
100
100
100
98
95
92
89
87
85
81
78
74
61
49
25
31
30
24
50
76

Low Clouds (% Sky Obscured)

0
0
0
0
2
2
2
2
2
4
5
3
64
65
65
65
59
49
3
3
19
24
28
21

Medium Clouds (% Sky Obscured)

11
20
32
86
100
100
100
98
95
92
89
87
85
81
75
72
57
43
25
16
13
5
37
68

High Clouds (% Sky Obscured)

10
27
39
59
75
88
100
86
72
58
47
35
23
13
6
0
0
0
0
0
0
0
30
62

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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-11
-11
-12
-12
-14
-15
-15
-15
-15
-15
-15
-15
-15
-16
-15
-16
-17
-16
-14
-11
-11
-10
-9
-9

Dew Point (°C)

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

Relative Humidity (%)

56
60
65
72
80
76
75
78
80
76
75
73
73
73
73
73
76
72
66
59
54
51
48
51

Pressure (mb)

1024
1025
1025
1026
1026
1026
1026
1026
1026
1025
1025
1025
1024
1024
1024
1024
1024
1024
1023
1023
1021
1020
1019
1018

Ozone (du)

346
349
349
350
355
355
357
360
360
362
367
374
382
401
414
428
427
430
428
426
422
414
412
411

Tuesday 9

Waning Gibbous 65%

21:42

11:39

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
13 Bad
14 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)

100
99
98
97
92
90
88
92
96
100
85
90
95
97
98
100
99
99
98
99
99
100
100
100

Low Clouds (% Sky Obscured)

15
18
18
21
24
32
40
47
43
43
31
36
41
50
58
67
68
69
71
80
90
99
92
85

Medium Clouds (% Sky Obscured)

100
98
97
95
76
83
77
85
93
100
75
81
90
97
98
100
96
91
87
85
82
80
86
93

High Clouds (% Sky Obscured)

91
57
27
15
24
32
60
77
89
100
67
68
70
80
90
100
99
99
98
92
93
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
8
7
7

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
Snow
Snow
Snow

Precipitation Probability (%)

0
1
1
1
2
5
7
11
14
16
2
2
2
3
4
3
13
17
19
32
43
55
70
80

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
0.2
0.4
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-9
-10
-10
-11
-11
-10
-11
-11
-11
-10
-10
-11
-11
-11
-11
-11
-10
-9
-10
-9
-9
-9
-9
-5

Dew Point (°C)

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

Relative Humidity (%)

58
62
67
71
76
84
89
85
82
82
82
82
82
82
84
85
84
81
76
73
74
72
74
77

Pressure (mb)

1018
1017
1017
1017
1017
1017
1016
1016
1016
1015
1015
1014
1013
1013
1013
1012
1012
1011
1010
1010
1008
1007
1005
1004

Ozone (du)

408
401
393
382
371
364
362
359
355
351
346
345
345
345
344
343
343
341
340
338
337
336
335
335

Wednesday 10

Waning Gibbous 55%

22:52

11:58

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
13 Bad
14 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)

100
100
100
100
97
94
90
85
80
74
81
86
95
96
95
95
80
66
54
51
40
33
50
71

Low Clouds (% Sky Obscured)

77
70
63
61
61
61
65
67
68
67
68
70
79
81
80
74
57
47
38
34
23
18
41
62

Medium Clouds (% Sky Obscured)

100
100
100
100
89
78
67
45
22
0
0
0
0
0
0
0
0
0
0
0
10
10
28
45

High Clouds (% Sky Obscured)

100
98
95
92
85
59
38
34
58
25
55
70
75
75
75
75
58
47
31
51
40
33
50
71

ISS Passover

Visibility (miles)

7
8
5
3
0
3
6
9
9
9
9
7
5
3
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

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

Precipitation Probability (%)

88
92
94
95
85
65
52
54
53
50
51
51
52
47
41
19
28
27
14
29
32
26
45
55

Precipitation Amount (mm)

0.6
0.7
0.7
0.7
0.5
0.3
0.1
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.1
0
0
0
0
0
0
0
0
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

0
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
1
1
2
2
2
2
1

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
86
91
93
98
96
94
91
93
93
93
94
96
98
91
86
81
80
77
74
74
74
73
77

Pressure (mb)

1004
1003
1003
1003
1003
1003
1003
1002
1002
1002
1002
1002
1002
1002
1003
1003
1004
1004
1005
1005
1005
1004
1003
1004

Ozone (du)

336
337
333
329
326
328
330
332
332
332
333
330
328
326
323
320
317
314
311
309
303
297
291
287

Thursday 11

Third Quarter 44%

23:58

12:16

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: 07:14, Set: 16:15, Transit: 11:44. Moon - Rise: 23:58, Set: 12:16. Civil Dark: 16:47 - 06:41. Nautical Dark: 17:23 - 06:05. Astro Dark: 17:57 - 05:31

Total Clouds (% Sky Obscured)

94
96
98
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

85
90
95
100
100
100
100
100
100
100
100
100
99
98
96
91

Medium Clouds (% Sky Obscured)

61
73
86
100
99
97
96
96
96
96
98
99
100
87
73
60

High Clouds (% Sky Obscured)

94
96
98
100
100
100
100
72
53
70
100
100
100
100
100
100

ISS Passover

Visibility (miles)

8
8
6
5
4
3
1
0
2
4
6
4
2
0
0
0

Fog (%)

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

Precipitation Type

Snow
Snow
Snow
Snow
Snow
Snow
Frozen rai
Frozen rai
Frozen rai
Light Rain
Light Rain
Light Rain
Light Rain
Snow
Light Rain
Very Light Rain

Precipitation Probability (%)

58
82
95
95
95
95
95
95
95
95
95
95
95
95
95
75

Precipitation Amount (mm)

0.1
0.4
0.6
0.8
1.4
1.9
2.4
2.3
1.9
1.5
1.7
1.7
1.3
0.8
0.7
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
89
89
91
92
94
96
96
98
98
96
98
98
98
98
100

Pressure (mb)

1004
1004
1003
1002
1000
999
997
996
994
993
991
991
991
990
992
993

Ozone (du)

283
279
277
275
273
273
272
272
272
271
271
273
275
277
278
279

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

Generated: 05/12/25 15:10:12. Forecast: 05/12/25 to 11/12/25. Timezone: UTC-5.00