Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 13

Waning Crescent 34%

01:02

12:34

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
20 Bad
21 Bad
22 Bad
23 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)

42
37
40
100
100
100
100
100
100
100
100
100
100
92
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

33
37
25
34
14
2
1
4
15
20
22
52
71
86
82
79
72
70
38
48
49
82
82
47

Medium Clouds (% Sky Obscured)

0
0
0
100
100
100
100
100
100
98
100
100
100
56
58
90
95
100
94
100
100
100
84
92

High Clouds (% Sky Obscured)

0
0
4
11
100
100
97
98
100
98
50
55
0
24
100
94
100
98
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
8
9
5
8
9
9
8
9
9
9
9
9
0
1
6
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
Snow
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
1
0
0
0
0
0
0
0
0
6
37
50
35
21
5
2
2
7
12
17
28
18

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
90
90
90
90
90
88
90
87
82
75
72
72
84
87
84
84
91
94
94
91
89
89
86

Pressure (mb)

1017
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1017
1016
1015
1014
1014
1014
1014
1015
1015
1014
1014
1014
1014

Ozone (du)

343
346
354
352
353
356
366
363
359
359
359
356
355
354
340
335
337
336
333
327
325
323
323
326

Sunday 14

Waning Crescent 25%

02:06

12:53

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

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
100
97
90
92
81
39
50
51
26
87
90
94
93
86
72
55
42
6
4
2
1
5

Low Clouds (% Sky Obscured)

48
51
65
40
24
44
40
20
20
27
19
87
90
94
93
86
72
55
42
6
4
2
1
5

Medium Clouds (% Sky Obscured)

93
97
99
94
86
89
75
27
33
25
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

33
32
43
21
48
60
7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
5
4
3
4
9
7
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 (%)

9
5
5
5
5
4
3
4
5
6
6
7
15
14
16
14
12
6
2
1
0
1
0
1

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-6
-7
-7
-7
-8
-8
-9
-10
-10
-10
-11
-11
-10
-9
-10
-9
-10
-11
-11
-12
-13
-13
-15
-16

Relative Humidity (%)

89
87
89
89
90
89
89
88
87
74
65
62
64
66
68
72
73
79
80
81
83
81
72
70

Pressure (mb)

1014
1014
1015
1015
1015
1014
1015
1015
1015
1015
1015
1014
1013
1013
1013
1014
1014
1015
1016
1016
1016
1016
1016
1016

Ozone (du)

326
325
324
322
324
330
335
339
345
352
359
361
358
349
360
364
364
362
353
342
339
343
349
344

Monday 15

Waning Crescent 18%

03:10

13:14

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

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)

22
26
21
2
2
3
2
2
1
4
16
64
79
94
100
100
100
100
100
100
100
100
99
98

Low Clouds (% Sky Obscured)

14
20
17
2
2
3
2
2
1
1
3
48
7
37
3
4
3
6
20
36
37
34
85
92

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
2
38
79
75
98
98
100
100
100
100
99
99
96
95

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
10
38
14
53
90
100
100
100
100
51
28
81
71
11

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
1
1
1
1
1
0
0
0
0
0
0
0
0
0
1
7
10
14
17
18
30
32

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)

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

Chance of Frost

Temperature (°C)

-13
-14
-14
-14
-14
-13
-13
-14
-13
-12
-10
-9
-8
-8
-7
-8
-8
-8
-8
-8
-8
-8
-9
-9

Feels Like (°C)

-17
-18
-19
-18
-18
-17
-17
-17
-16
-15
-13
-13
-14
-13
-13
-13
-13
-14
-13
-12
-11
-12
-12
-12

Dew Point (°C)

-17
-18
-18
-18
-18
-17
-17
-18
-17
-17
-16
-15
-15
-14
-13
-13
-13
-13
-13
-13
-12
-11
-11
-11

Relative Humidity (%)

71
70
68
70
71
71
71
70
70
63
62
60
59
59
63
66
65
65
66
66
71
80
83
83

Pressure (mb)

1016
1016
1017
1017
1018
1018
1019
1020
1020
1021
1021
1020
1019
1018
1018
1018
1018
1018
1018
1017
1017
1017
1016
1016

Ozone (du)

349
363
353
365
384
356
345
333
317
300
291
287
291
289
291
296
292
294
293
292
301
304
310
327

Tuesday 16

Waning Crescent 11%

04:14

13:39

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

Sun - Rise: 07:16, Set: 16:16, Transit: 11:46. Moon - Rise: 04:14, Set: 13:39. Civil Dark: 16:48 - 06:44. Nautical Dark: 17:24 - 06:08. Astro Dark: 17:59 - 05:33

Total Clouds (% Sky Obscured)

97
95
95
79
31
29
15
16
19
23
31
49
66
55
57
72
80
90
100
75
51
26
22
23

Low Clouds (% Sky Obscured)

91
91
94
75
19
25
15
16
7
9
11
32
55
28
23
25
22
13
6
9
4
2
8
3

Medium Clouds (% Sky Obscured)

92
90
25
11
9
5
0
0
0
0
0
0
0
0
0
0
7
12
15
13
15
17
13
9

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
5
33
67
100
67
33
0
0
0

ISS Passover

Visibility (miles)

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

24
28
26
17
16
12
3
2
3
0
1
0
0
1
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
3
3
3
2
2
2
3
4
5
6
7
6
4
3
2
2
2
2
2
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
88
88
90
92
90
90
88
85
74
67
65
64
61
64
69
87
92
92
92
90
88
90
90

Pressure (mb)

1016
1016
1016
1016
1016
1017
1018
1018
1019
1019
1020
1020
1020
1020
1020
1020
1021
1021
1022
1022
1022
1022
1022
1021

Ozone (du)

340
346
348
349
360
355
331
325
331
328
316
310
299
290
286
282
281
277
275
273
272
272
271
272

Wednesday 17

Waning Crescent 6%

05:19

14:10

00 OK
01 OK
02 OK
03 OK
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 OK
19 OK
20 OK
21 Good
22 OK
23 OK

Sun - Rise: 07:17, Set: 16:16, Transit: 11:47. Moon - Rise: 05:19, Set: 14:10. Civil Dark: 16:48 - 06:45. Nautical Dark: 17:25 - 06:09. Astro Dark: 17:59 - 05:34

Total Clouds (% Sky Obscured)

20
21
27
29
56
76
100
100
100
100
100
100
100
99
100
100
77
53
37
29
25
9
16
22

Low Clouds (% Sky Obscured)

4
2
1
1
6
15
15
18
13
18
22
21
48
63
79
100
71
43
14
9
6
1
1
0

Medium Clouds (% Sky Obscured)

5
1
4
0
43
76
100
100
100
100
88
89
84
73
48
20
10
4
1
1
0
0
0
0

High Clouds (% Sky Obscured)

0
2
8
10
40
73
100
91
84
78
88
93
100
59
52
46
35
24
18
13
7
1
5
17

ISS Passover

Visibility (miles)

8
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
2
1
0
1
6
4
2
0
0
0
2
0
4
2
0
2
7
6
13
10
1
6
5

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-14
-14
-13
-13
-13
-12
-11
-10
-9
-8
-6
-5
-3
-2
-3
-3
-2
-3
-3
-3
-4
-4
-5
-5

Dew Point (°C)

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

Relative Humidity (%)

88
88
90
90
90
88
85
85
85
81
78
75
75
77
78
81
83
80
77
75
74
72
69
71

Pressure (mb)

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

Ozone (du)

271
273
270
269
267
268
269
269
271
275
280
284
287
289
291
292
293
295
296
298
299
301
302
304

Thursday 18

Waning Crescent 2%

06:22

14:47

00 OK
01 OK
02 OK
03 OK
04 OK
05 OK
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
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:18, Set: 16:16, Transit: 11:47. Moon - Rise: 06:22, Set: 14:47. Civil Dark: 16:49 - 06:45. Nautical Dark: 17:25 - 06:09. Astro Dark: 18:00 - 05:34

Total Clouds (% Sky Obscured)

29
36
38
39
36
41
49
62
75
89
90
94
100
99
100
99
99
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
17
34
46
33
20
6
4
2
1
22
42
54
66
81
95
93
92
91
93
97

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
3
4
26
48
70
80
89
98
99
99
100
97
95
92
95
97

High Clouds (% Sky Obscured)

25
36
38
39
36
31
27
27
58
77
84
83
100
81
53
24
49
74
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
8
8
5
3
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Snow
Ice pellet
Ice pellet
Ice pellet
Frozen rai
Frozen rai
Frozen rai

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
4
7
10
37
56
70
73
74
91
91
86

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

5
5
5
4
3
3
2
2
2
2
2
3
5
6
6
7
7
8
8
9
9
9
9
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-5
-5
-9
-8
-8
-8
-8
-8
-9
-8
-8
-6
-6
-5
-2
-3
-3
-3
-3
-3
-3
-3
-3
-3

Dew Point (°C)

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

Relative Humidity (%)

72
70
76
79
84
85
87
89
82
76
71
70
66
64
64
64
64
71
81
91
94
94
98
98

Pressure (mb)

1020
1020
1021
1022
1022
1023
1023
1024
1024
1024
1024
1023
1022
1020
1020
1019
1018
1017
1016
1015
1013
1012
1011
1009

Ozone (du)

306
308
308
309
310
310
310
310
310
311
311
310
308
307
304
302
299
299
299
300
301
301
302
305

Friday 19

New Moon 0%

07:20

15:34

Sun - Rise: 07:18, Set: 16:17, Transit: 11:48. Moon - Rise: 07:20, Set: 15:34. Civil Dark: 16:49 - 06:46. Nautical Dark: 17:25 - 06:10. Astro Dark: 18:00 - 05:35

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 13/12/25 00:04:39. Forecast: 13/12/25 to 19/12/25. Timezone: UTC-5.00