Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 8

Waning Gibbous 75%

20:28

11:16

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

22
30
32
26
7
7
3
3
1
1
3
11
7
5
6
12
98
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

1
1
1
2
3
3
2
2
1
1
2
2
1
0
0
0
0
0
0
0
0
0
20
35

Medium Clouds (% Sky Obscured)

1
2
2
18
2
1
0
0
0
0
0
7
2
2
1
7
97
100
100
100
100
98
100
100

High Clouds (% Sky Obscured)

22
30
32
14
3
3
0
0
0
0
0
1
2
2
4
6
81
100
100
100
100
85
77
75

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)

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

Chance of Frost

Temperature (°C)

-13
-14
-14
-13
-13
-13
-13
-14
-14
-14
-14
-15
-14
-12
-9
-8
-6
-5
-5
-5
-5
-6
-7
-7

Feels Like (°C)

-17
-17
-18
-16
-15
-15
-15
-15
-15
-15
-15
-16
-16
-13
-11
-10
-8
-9
-10
-9
-9
-10
-11
-12

Dew Point (°C)

-16
-17
-17
-15
-15
-16
-16
-16
-16
-17
-17
-17
-18
-17
-16
-16
-16
-15
-14
-13
-10
-10
-10
-13

Relative Humidity (%)

78
79
81
83
83
81
81
81
81
81
81
82
74
63
55
49
47
47
48
54
67
74
76
62

Pressure (mb)

1027
1027
1027
1027
1026
1026
1025
1025
1025
1024
1025
1025
1025
1025
1024
1023
1021
1020
1018
1017
1017
1016
1016
1015

Ozone (du)

354
358
364
365
364
366
367
376
379
396
411
417
417
415
413
411
402
397
399
402
407
408
397
396

Tuesday 9

Waning Gibbous 65%

21:42

11:39

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
18 Bad
19 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: 17:23 - 06:04. Astro Dark: 17:57 - 05:29

Total Clouds (% Sky Obscured)

100
89
99
98
99
100
100
100
100
100
97
100
96
100
100
100
100
100
100
100
100
100
100
92

Low Clouds (% Sky Obscured)

43
80
89
95
95
88
38
47
38
45
56
55
42
94
99
100
100
100
99
95
92
90
90
91

Medium Clouds (% Sky Obscured)

100
61
81
70
66
76
100
100
100
100
96
96
92
100
100
100
100
100
100
100
100
82
100
68

High Clouds (% Sky Obscured)

51
4
17
14
61
94
99
38
71
100
35
93
37
100
100
100
100
100
100
100
100
99
24
25

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

3
29
53
57
42
14
5
3
1
0
0
5
28
52
78
95
95
95
95
95
95
74
57
50

Precipitation Amount (mm)

0
0
0.3
0.3
0.2
0
0
0
0
0
0
0
0
0.1
0.3
0.8
1.4
1.3
0.7
0.7
0.5
0.3
0.1
0.1

Wind Speed/Direction (mph)

8
8
8
6
5
5
4
4
4
5
4
4
4
5
6
7
8
8
8
9
9
8
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-12
-12
-8
-7
-6
-6
-6
-6
-5
-5
-5
-5
-5
-5
-4
-4
-3
-2
-2
-1
0
0
1
1

Relative Humidity (%)

61
63
87
94
94
94
94
90
89
89
92
94
92
87
91
91
91
94
94
94
98
96
98
98

Pressure (mb)

1015
1014
1013
1012
1011
1010
1009
1008
1007
1007
1006
1006
1005
1004
1003
1002
1000
998
997
995
994
993
993
993

Ozone (du)

395
394
385
375
366
358
352
350
346
345
348
350
350
347
349
350
347
343
338
334
334
337
333
337

Wednesday 10

Waning Gibbous 55%

22:52

11:58

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 OK
14 OK
15 OK
16 OK
17 Bad
18 OK
19 Bad

Sun - Rise: 07:13, Set: 16:15, 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)

92
91
92
99
100
94
86
99
100
55
50
51
43
30
32
13
23
20
27
16
22
49
28
41

Low Clouds (% Sky Obscured)

89
83
81
86
91
83
86
89
85
17
16
20
17
15
5
13
23
20
27
14
15
21
11
11

Medium Clouds (% Sky Obscured)

66
74
74
51
83
76
51
95
77
55
50
51
43
30
32
0
0
0
0
0
4
24
18
32

High Clouds (% Sky Obscured)

13
14
14
69
97
3
17
3
75
2
18
0
0
0
0
0
0
0
0
1
2
3
11
4

ISS Passover

Visibility (miles)

0
0
0
0
0
0
1
0
2
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
Snow
None
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

47
54
46
46
43
45
44
39
29
10
5
3
4
2
2
1
1
3
5
3
10
10
4
10

Precipitation Amount (mm)

0.1
0.2
0
0.1
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
6
5
5
5
4
5
8
12
12
12
12
12
12
12
12
13
12
12
12
11
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
98
100
100
98
98
98
98
96
86
84
79
75
69
69
66
66
69
70
70
73
76
73
73

Pressure (mb)

992
991
991
991
990
990
991
991
991
992
994
996
997
998
999
999
999
999
1000
1000
1001
1002
1002
1003

Ozone (du)

342
348
349
343
351
353
351
347
346
350
353
368
369
371
369
369
368
366
366
372
371
370
363
360

Thursday 11

Third Quarter 44%

23:58

12:16

20 OK
21 OK
22 OK
23 OK
00 OK
01 OK
02 OK
03 Good
04 OK
05 OK
06 OK
07 OK
08 OK
09 OK
10 OK
11 OK
12 OK
13 OK
14 OK
15 OK
16 Bad
17 Bad
18 Bad
19 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: 17:58 - 05:31

Total Clouds (% Sky Obscured)

21
22
23
31
31
24
17
8
12
18
25
26
27
28
33
36
42
38
34
31
49
64
81
81

Low Clouds (% Sky Obscured)

12
17
17
26
14
5
1
0
2
3
7
8
11
13
14
16
17
18
16
20
17
12
4
3

Medium Clouds (% Sky Obscured)

11
5
5
9
14
10
10
7
5
3
2
2
1
0
0
0
0
0
0
0
32
63
81
81

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
33
64
81
81

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 (%)

13
7
12
13
8
9
8
1
2
2
1
1
1
1
2
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
72
72
74
72
71
68
66
65
64
64
62
63
60
56
56
59
60
63
64
66
70
72
72

Pressure (mb)

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

Ozone (du)

354
356
355
361
364
364
365
364
362
359
356
353
358
364
361
354
351
352
352
354
357
355
356
349

Friday 12

Waning Crescent 34%

01:02

12:34

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
18 Bad
19 Bad

Sun - Rise: 07:14, Set: 16:15, Transit: 11:45. Moon - Rise: 01:02, Set: 12:34. Civil Dark: 16:47 - 06:42. Nautical Dark: 17:23 - 06:06. Astro Dark: 17:58 - 05:31

Total Clouds (% Sky Obscured)

76
75
64
85
78
85
93
100
97
95
94
92
87
83
83
85
82
83
80
77
86
92
100
100

Low Clouds (% Sky Obscured)

2
0
2
5
7
13
18
41
50
66
81
78
76
74
77
78
80
80
80
77
66
52
37
37

Medium Clouds (% Sky Obscured)

76
75
64
83
75
85
93
100
95
90
85
81
78
74
70
68
72
77
58
44
32
49
70
80

High Clouds (% Sky Obscured)

76
75
63
43
15
15
25
30
28
1
0
0
0
0
0
0
0
18
37
53
52
57
45
25

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
1
2
4
1
10
11
10
22
22
18
29
35
37
35
31
25
25
24
11
16

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
74
79
87
90
88
88
87
88
90
90
92
84
79
72
71
69
68
71
75
78
79
79
81

Pressure (mb)

1012
1012
1013
1013
1013
1013
1013
1012
1012
1011
1011
1010
1010
1010
1010
1010
1010
1010
1010
1011
1012
1012
1013
1014

Ozone (du)

345
348
347
344
349
365
369
364
367
372
371
368
365
363
361
356
351
346
342
339
335
334
332
330

Saturday 13

Waning Crescent 25%

02:06

12:53

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
18 Bad
19 Bad

Sun - Rise: 07:15, Set: 16:15, Transit: 11:45. Moon - Rise: 02:06, Set: 12:53. Civil Dark: 16:47 - 06:43. Nautical Dark: 17:23 - 06:07. Astro Dark: 17:58 - 05:32

Total Clouds (% Sky Obscured)

99
99
93
86
76
84
92
100
82
77
60
70
65
70
80
85
95
96
96
97
93
86
79
75

Low Clouds (% Sky Obscured)

36
36
37
39
37
33
29
26
17
9
0
0
0
0
0
5
10
16
31
42
38
39
42
49

Medium Clouds (% Sky Obscured)

90
99
93
86
76
84
92
100
82
77
60
70
65
70
80
85
95
96
96
97
93
86
79
75

High Clouds (% Sky Obscured)

25
0
0
60
60
60
55
30
26
18
6
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

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 (%)

18
5
14
16
10
25
29
27
29
28
18
29
32
30
32
30
27
26
25
22
22
24
19
31

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)

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

Chance of Frost

Temperature (°C)

-6
-6
-6
-6
-7
-7
-7
-7
-7
-7
-8
-8
-8
-7
-6
-6
-6
-5
-6
-7
-7
-7
-8
-8

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
85
87
85
85
85
87
89
90
90
88
88
88
85
84
82
79
76
77
77
79
82
85
92

Pressure (mb)

1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1014
1013
1013
1013
1014
1014
1014
1015

Ozone (du)

328
325
323
322
320
318
319
320
320
322
324
325
328
331
334
341
348
355
360
366
371
372
373
374

Sunday 14

Waning Crescent 18%

03:10

13:14

20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 OK
06 OK
07 OK
08 OK
09 OK
10 Good
11 Good
12 Good

Sun - Rise: 07:16, Set: 16:15, Transit: 11:46. Moon - Rise: 03:10, Set: 13:14. Civil Dark: 16:48 - 06:43. Nautical Dark: 17:24 - 06:07. Astro Dark: 17:58 - 05:33

Total Clouds (% Sky Obscured)

75
70
75
75
89
78
62
55
42
29
16
23
26
21
13
4
5

Low Clouds (% Sky Obscured)

50
58
55
53
50
41
30
20
19
18
16
12
6
0
2
3
5

Medium Clouds (% Sky Obscured)

75
70
71
72
74
66
43
36
25
19
14
21
26
21
13
4
5

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
23
26
21
13
4
5

ISS Passover

Visibility (miles)

7
7
8
8
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

Precipitation Type

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

Precipitation Probability (%)

36
21
23
22
8
15
14
2
4
8
0
1
0
0
0
1
1

Precipitation Amount (mm)

0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
7
9
9
10
10
10
11
11
11
10
10
10
10
11
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-12
-13
-13
-13
-13
-13
-17
-17
-18
-18
-18
-19
-20
-20
-20
-19
-19

Dew Point (°C)

-10
-12
-13
-14
-15
-16
-17
-18
-20
-21
-21
-21
-21
-20
-20
-19
-18

Relative Humidity (%)

87
82
77
75
73
70
66
61
57
57
59
60
59
59
59
61
61

Pressure (mb)

1015
1015
1016
1016
1017
1017
1018
1019
1020
1021
1021
1022
1023
1023
1024
1024
1023

Ozone (du)

374
374
374
373
372
372
365
358
352
355
358
361
366
372
378
381
384

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

Generated: 08/12/25 20:39:03. Forecast: 08/12/25 to 14/12/25. Timezone: UTC-5.00