Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 28

First Quarter 57%

12:41

00:18

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

Sun - Rise: 07:01, Set: 16:16, Transit: 11:39. Moon - Rise: 12:41, Set: 00:18. Civil Dark: 16:48 - 06:29. Nautical Dark: 17:23 - 05:54. Astro Dark: 17:58 - 05:20

Total Clouds (% Sky Obscured)

93
91
77
79
61
58
71
73
67
62
53
51
43
29
32
30
27
28
30
46
35
44
43
22

Low Clouds (% Sky Obscured)

41
42
51
62
59
56
61
63
54
55
53
51
43
26
32
30
27
28
30
46
35
44
43
22

Medium Clouds (% Sky Obscured)

93
78
21
32
34
33
28
27
24
27
26
23
21
14
7
8
10
8
3
0
0
0
0
0

High Clouds (% Sky Obscured)

4
24
2
1
1
3
3
2
0
0
0
0
0
0
3
2
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

7
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 (%)

26
12
13
21
9
6
2
3
1
1
1
1
1
1
0
1
0
0
0
2
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)

13
13
12
13
12
11
11
10
10
11
11
11
12
11
11
11
12
12
11
11
11
11
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-7
-7
-8
-6
-6
-6
-6
-6
-6
-6
-7
-7
-7
-8
-8
-8
-8
-8
-8
-8
-9
-9
-9
-10

Relative Humidity (%)

59
57
53
58
64
65
67
68
68
67
66
66
67
65
67
68
69
69
68
68
65
59
55
49

Pressure (mb)

1006
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1024
1025
1026
1026
1027

Ozone (du)

364
356
354
351
346
343
341
339
335
340
336
340
340
336
334
337
337
334
334
334
333
330
330
329

Saturday 29

Waxing Gibbous 68%

13:01

01:31

12 OK
13 OK
14 OK
15 Good
16 Good
17 Good
18 Bad
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

Sun - Rise: 07:02, Set: 16:16, Transit: 11:39. Moon - Rise: 13:01, Set: 01:31. Civil Dark: 16:48 - 06:31. Nautical Dark: 17:23 - 05:55. Astro Dark: 17:57 - 05:21

Total Clouds (% Sky Obscured)

21
23
19
3
0
3
49
22
88
92
97
98
100
100
100
100
100
100
100
100
99
98
98
100

Low Clouds (% Sky Obscured)

21
22
18
2
0
0
0
1
1
2
0
72
70
70
75
57
70
100
70
89
96
91
93
95

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
4
80
92
97
96
100
100
96
100
96
96
100
97
95
94
74
85

High Clouds (% Sky Obscured)

0
0
0
1
0
3
43
16
31
37
57
88
100
100
100
42
100
100
78
100
75
34
41
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
1
1
3
3
5

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
Snow
None
None
Snow
None
Snow

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
23
53
30
34
50
23
38

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

12
11
10
8
7
4
3
2
2
1
2
2
2
2
2
2
3
3
5
5
5
7
7
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

45
44
44
50
55
64
71
73
73
73
71
71
68
71
72
72
75
75
75
84
86
83
84
80

Pressure (mb)

1027
1028
1028
1029
1030
1031
1031
1032
1032
1032
1032
1032
1032
1031
1031
1031
1031
1030
1030
1029
1028
1027
1026
1024

Ozone (du)

329
329
326
325
324
322
323
322
321
320
317
316
315
315
314
315
317
321
324
326
324
325
329
330

Sunday 30

Waxing Gibbous 79%

13:22

02:47

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 OK
01 OK
02 OK
03 Bad
04 Bad
05 OK
06 OK
07 OK
08 OK
09 OK
10 OK
11 OK

Sun - Rise: 07:03, Set: 16:16, Transit: 11:39. Moon - Rise: 13:22, Set: 02:47. Civil Dark: 16:47 - 06:32. Nautical Dark: 17:23 - 05:56. Astro Dark: 17:57 - 05:22

Total Clouds (% Sky Obscured)

100
100
100
100
100
95
100
100
100
77
68
75
38
33
28
79
48
18
19
20
19
21
33
35

Low Clouds (% Sky Obscured)

99
95
100
100
98
91
84
77
85
77
64
71
24
23
22
75
48
18
19
20
19
21
19
14

Medium Clouds (% Sky Obscured)

100
100
98
89
99
64
46
0
26
0
16
18
15
11
10
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
54
29
10
8
85
85
80
0
0
0
0
0
0
0
0
0
0
0
0
1
23
35

ISS Passover

Visibility (miles)

0
0
0
0
0
0
9
9
8
8
4
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
Snow
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

60
95
95
95
95
72
22
3
21
20
11
2
1
1
2
5
4
5
4
6
5
1
0
0

Precipitation Amount (mm)

0.2
0.9
0.8
1
0.6
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
94
98
96
96
96
91
89
82
80
85
80
77
77
78
80
74
74
74
72
74
69
64
57

Pressure (mb)

1022
1020
1018
1017
1016
1016
1016
1015
1015
1015
1015
1015
1016
1016
1017
1018
1019
1020
1022
1023
1025
1025
1026
1027

Ozone (du)

333
336
340
343
343
345
348
352
358
360
362
362
364
367
373
383
387
391
392
388
385
381
378
381

Monday 1

Waxing Gibbous 88%

13:46

04:07

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
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:04, Set: 16:15, Transit: 11:40. Moon - Rise: 13:46, Set: 04:07. Civil Dark: 16:47 - 06:33. Nautical Dark: 17:23 - 05:57. Astro Dark: 17:57 - 05:23

Total Clouds (% Sky Obscured)

76
97
94
90
93
95
100
100
100
100
96
91
85
90
95
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

17
16
10
10
7
3
1
3
3
1
52
10
67
75
70
65
67
69
70
76
86
94
95
96

Medium Clouds (% Sky Obscured)

34
53
85
84
87
82
70
99
100
100
94
90
81
89
94
100
100
99
99
99
100
100
100
100

High Clouds (% Sky Obscured)

56
87
74
56
55
76
100
100
100
100
83
66
49
66
83
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
5
2
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
None
None
None
None
None
None
None
Snow
Snow
Snow
Snow

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
7
7
10
26
33
58
80
85
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.5
0.5
0.6

Wind Speed/Direction (mph)

10
9
8
6
4
3
2
2
1
0
1
2
2
2
3
3
3
3
3
2
2
2
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-10
-11
-11
-9
-9
-8
-8
-8
-8
-9
-9
-10
-9
-9
-10
-10
-9
-8
-8
-8
-7
-5
-5
-5

Relative Humidity (%)

53
51
52
58
64
73
76
79
76
73
72
68
70
72
66
65
68
72
73
75
79
87
89
91

Pressure (mb)

1027
1026
1027
1027
1028
1028
1028
1028
1028
1028
1028
1027
1026
1026
1025
1025
1024
1024
1023
1023
1023
1022
1022
1021

Ozone (du)

380
377
373
371
371
372
373
372
370
367
363
361
360
357
356
355
354
353
354
353
352
350
350
349

Tuesday 2

Waxing Gibbous 95%

14:14

05:32

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
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:05, Set: 16:15, Transit: 11:40. Moon - Rise: 14:14, Set: 05:32. Civil Dark: 16:47 - 06:33. Nautical Dark: 17:23 - 05:58. Astro Dark: 17:57 - 05:23

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
99
98
97
92
87
74
70
54
52
64
75

Low Clouds (% Sky Obscured)

97
98
99
100
100
100
100
100
100
100
100
100
98
87
83
80
79
78
74
70
54
52
64
75

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
96
100
100
100
100
95
90
72
46
19
11
10
9
4
15
26

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
88
75
70
60
55
40
0
0
0
0
0
0
0
0
0
24
39

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
7
9
8
7
6
7
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

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

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
95
95
95
49
43
34
36
37
34
32
27
27
27
25

Precipitation Amount (mm)

0.6
0.9
1.8
2.6
2.5
2.6
2.8
2.6
2.4
2.1
2
1.9
1.4
0.2
0.1
0
0
0.1
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
92
94
96
96
98
96
96
98
96
96
96
96
94
92
89
87
89
90
90
87
87
84
81

Pressure (mb)

1019
1017
1016
1014
1013
1012
1010
1008
1006
1005
1004
1002
1001
999
1006
1006
1007
1007
1008
1009
1009
1010
1010
1010

Ozone (du)

349
346
347
346
347
348
348
348
347
346
349
349
348
350
350
349
349
349
350
350
347
344
341
340

Wednesday 3

Waxing Gibbous 99%

14:50

06:57

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
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:06, Set: 16:15, Transit: 11:41. Moon - Rise: 14:50, Set: 06:57. Civil Dark: 16:47 - 06:34. Nautical Dark: 17:22 - 05:59. Astro Dark: 17:57 - 05:24

Total Clouds (% Sky Obscured)

86
88
91
95
93
91
91
89
87
85
82
81
84
87
97
97
94
95
95
85
81
79
83
86

Low Clouds (% Sky Obscured)

77
74
69
64
57
50
39
28
18
14
30
43
57
55
54
55
47
39
33
39
43
46
51
62

Medium Clouds (% Sky Obscured)

37
56
77
95
93
91
91
89
87
85
82
81
84
87
97
97
94
95
95
85
77
65
44
27

High Clouds (% Sky Obscured)

44
45
35
30
45
60
60
40
70
75
75
45
75
45
30
25
29
33
37
37
32
30
25
20

ISS Passover

Visibility (miles)

9
9
9
9
9
9
8
8
7
6
5
5
6
7
8
8
9
9
9
8
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 (%)

23
23
23
10
13
13
3
9
10
0
0
0
0
0
0
0
0
0
0
0
1
1
6
7

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
80
84
89
94
94
92
94
94
94
92
94
92
92
92
92
94
92
94
94
90
89
86
84

Pressure (mb)

1010
1010
1010
1011
1011
1012
1013
1014
1014
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1015

Ozone (du)

339
338
339
341
342
344
346
348
352
356
360
360
360
360
360
359
359
360
362
363
364
364
365
365

Thursday 4

Full Moon 100%

15:37

08:15

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 OK
01 OK
02 OK
03 OK
04 OK
05 OK
06 OK

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)

87
86
84
84
70
58
48
52
57
64
54
41
26
23
15
11
13
14
15

Low Clouds (% Sky Obscured)

80
79
80
78
66
55
44
35
25
11
13
14
15
16
15
11
13
14
15

Medium Clouds (% Sky Obscured)

11
11
10
5
0
0
0
19
37
56
42
29
15
10
5
0
0
0
0

High Clouds (% Sky Obscured)

13
9
4
0
0
0
0
2
5
7
4
2
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
8
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
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 (%)

5
13
18
20
30
34
34
31
26
15
17
17
10
23
27
28
32
31
15

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)

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

Chance of Frost

Temperature (°C)

-0
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-11
-12
-14
-14
-14
-15
-14
-14

Feels Like (°C)

-7
-6
-3
-3
-4
-4
-5
-5
-9
-10
-11
-11
-11
-11
-17
-17
-16
-16
-17

Dew Point (°C)

-3
-2
-3
-3
-4
-5
-7
-9
-10
-11
-11
-13
-15
-17
-16
-17
-17
-17
-17

Relative Humidity (%)

84
83
84
89
91
87
82
76
79
79
80
81
81
82
83
81
80
79
79

Pressure (mb)

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

Ozone (du)

365
365
368
370
372
369
366
363
364
365
366
373
380
387
387
386
386
384
383

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

Generated: 28/11/25 12:02:44. Forecast: 28/11/25 to 04/12/25. Timezone: UTC-5.00