Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 16

Waning Crescent 11%

04:14

13:39

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

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)

95
98
100
100
92
54
9
3
2
2
2
2
25
57
75
42
95
70
69
95
100
100
100
100

Low Clouds (% Sky Obscured)

35
26
31
25
2
2
6
2
1
1
1
1
17
37
28
0
0
0
0
0
0
0
0
1

Medium Clouds (% Sky Obscured)

55
70
75
80
91
47
2
0
0
0
0
0
0
0
31
35
54
65
62
92
92
100
100
23

High Clouds (% Sky Obscured)

33
38
100
67
65
54
0
0
0
0
0
0
1
20
55
15
89
61
59
89
100
100
100
100

ISS Passover

Visibility (miles)

6
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
1
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
4
2
0
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-12
-13
-12
-14
-12
-12
-13
-12
-12
-10
-8
-7
-6
-6
-6
-6
-6
-8
-9
-9
-10
-9
-9
-10

Dew Point (°C)

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

Relative Humidity (%)

90
90
90
90
88
90
88
88
85
75
70
66
64
63
64
71
87
90
89
87
87
87
87
87

Pressure (mb)

1019
1019
1020
1020
1020
1020
1021
1022
1022
1022
1023
1022
1021
1020
1020
1020
1020
1020
1020
1019
1019
1018
1017
1017

Ozone (du)

291
309
320
322
318
321
330
322
310
306
304
298
294
291
288
284
284
280
278
277
276
271
267
263

Wednesday 17

Waning Crescent 6%

05:19

14:10

00 Bad
01 OK
02 Bad
03 Bad
04 OK
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 OK
22 OK
23 Good

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)

100
35
72
51
12
80
92
100
100
97
100
100
95
72
99
100
100
99
72
71
58
23
31
17

Low Clouds (% Sky Obscured)

1
9
6
7
12
3
19
16
19
20
18
22
26
25
61
98
91
92
72
71
58
13
25
10

Medium Clouds (% Sky Obscured)

1
0
0
0
0
15
1
24
52
38
38
54
24
3
95
84
45
2
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
35
35
51
5
70
88
100
100
97
100
100
33
17
25
86
70
60
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
8
8
8
8
9
8
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
2
3
4
4
7
13
2
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
5
5
5
5
4
5
6
7
7
9
9
8
10
11
12
12
12
13
13
11
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-9
-10
-10
-9
-10
-9
-9
-10
-9
-7
-5
-4
-3
-2
-1
-1
-2
-3
-3
-3
-3
-4
-4
-4

Dew Point (°C)

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

Relative Humidity (%)

89
90
92
92
92
92
90
92
89
82
77
75
71
73
75
77
83
80
79
80
79
70
71
74

Pressure (mb)

1016
1015
1015
1014
1013
1013
1012
1012
1011
1011
1010
1009
1007
1007
1007
1008
1008
1009
1011
1012
1013
1015
1017
1019

Ozone (du)

261
263
263
263
263
265
268
269
271
273
273
276
279
283
289
293
301
303
312
319
331
338
333
324

Thursday 18

Waning Crescent 2%

06:22

14:47

00 OK
01 OK
02 Good
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 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)

34
30
4
19
77
100
94
62
54
61
60
63
99
65
76
97
90
95
81
99
100
100
100
100

Low Clouds (% Sky Obscured)

18
22
3
3
3
6
3
3
19
14
9
0
0
0
0
30
77
91
76
98
99
100
100
100

Medium Clouds (% Sky Obscured)

0
0
0
0
1
86
76
53
22
51
60
2
40
35
64
44
11
25
12
34
68
79
89
90

High Clouds (% Sky Obscured)

0
0
1
8
77
98
85
24
6
7
60
63
88
31
63
89
78
76
8
53
70
2
2
55

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
3
0

Fog (%)

0
0
0
0
0
6
6
15
31
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
4
0
0
0
1
1
2
20
37

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
78
87
91
91
91
87
89
87
78
70
64
59
58
63
68
76
78
83
91
93
94
98
98

Pressure (mb)

1020
1021
1022
1022
1022
1023
1024
1024
1024
1024
1025
1023
1022
1021
1020
1020
1020
1019
1019
1018
1017
1015
1014
1013

Ozone (du)

321
318
316
316
316
320
322
321
320
319
317
313
310
309
305
304
305
303
301
300
300
303
303
302

Friday 19

New Moon 0%

07:20

15:34

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: 07:18, 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)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
92
100
96
82
99
86
94
98
80
56

Low Clouds (% Sky Obscured)

100
100
100
100
99
99
98
99
98
97
98
98
99
96
58
87
74
27
85
29
61
69
66
45

Medium Clouds (% Sky Obscured)

35
84
77
100
99
97
95
97
98
100
100
100
100
100
68
65
79
82
88
86
94
95
63
32

High Clouds (% Sky Obscured)

60
73
87
100
100
100
100
100
100
100
100
100
100
68
32
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
0
0
0
2
5
2
3
2
1
9
9
9
9
9
9
9
9
9
8
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
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
Snow
None
Snow
None
Snow
Snow

Precipitation Probability (%)

31
36
45
40
57
95
95
95
95
95
95
95
95
95
94
73
71
65
60
54
50
43
47
36

Precipitation Amount (mm)

0
0
0
0
0
0.6
1.6
1.4
1.9
3.7
3
0.7
1.1
0.8
0.5
0.2
0.3
0
0.1
0
0.1
0
0.2
0.1

Wind Speed/Direction (mph)

6
6
6
6
6
8
10
10
13
13
15
10
7
6
7
10
12
11
12
15
14
14
14
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
98
98
100
96
93
93
90
93
91
88
87
88
85
81
79
73
80
74
75
72
72
72

Pressure (mb)

1012
1010
1009
1008
1006
1003
1001
999
996
995
994
993
991
990
990
990
991
992
993
995
996
998
999
1001

Ozone (du)

303
301
301
304
306
308
309
312
316
317
320
324
328
335
344
345
352
352
353
356
356
358
358
360

Saturday 20

Waxing Crescent 1%

08:12

16:30

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

Sun - Rise: 07:19, Set: 16:17, Transit: 11:48. Moon - Rise: 08:12, Set: 16:30. Civil Dark: 16:50 - 06:46. Nautical Dark: 17:26 - 06:10. Astro Dark: 18:01 - 05:36

Total Clouds (% Sky Obscured)

32
32
23
21
13
7
1
25
25
28
30
35
45
99
97
96
93
90
87
91
95
100
100
100

Low Clouds (% Sky Obscured)

32
32
23
21
13
7
0
0
0
0
0
0
2
4
8
12
8
4
0
0
4
5
28
52

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
25
25
24
30
35
45
96
92
85
77
68
64
76
88
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
15
14
28
30
35
45
83
66
49
53
56
69
77
80
84
92
97

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
8
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
Snow
Snow

Precipitation Probability (%)

10
11
12
3
4
3
0
0
0
0
0
0
0
1
0
0
1
1
0
8
12
14
43
55

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
0.1
0.2

Wind Speed/Direction (mph)

15
16
15
14
15
14
12
12
11
10
9
9
8
9
5
3
2
2
4
5
5
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-9
-10
-12
-13
-14
-14
-14
-14
-14
-15
-15
-15
-15
-15
-14
-13
-12
-11
-10
-10
-10
-9
-9
-7

Relative Humidity (%)

69
69
63
61
60
60
60
59
57
51
47
43
41
39
44
49
55
58
61
64
64
65
66
73

Pressure (mb)

1002
1004
1006
1008
1009
1010
1012
1014
1015
1016
1018
1018
1017
1017
1019
1019
1019
1019
1018
1018
1017
1016
1015
1015

Ozone (du)

362
356
350
351
353
360
360
353
344
342
341
337
341
340
337
333
329
327
325
323
324
324
324
323

Sunday 21

Waxing Crescent 3%

08:56

17:33

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

Sun - Rise: 07:19, Set: 16:18, Transit: 11:49. Moon - Rise: 08:56, Set: 17:33. Civil Dark: 16:50 - 06:47. Nautical Dark: 17:26 - 06:11. Astro Dark: 18:01 - 05:36

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
98
95
93
88
83
80
62
43
21
18
14
11
29
44
58
46
32

Low Clouds (% Sky Obscured)

75
68
63
58
67
77
89
80
72
68
68
66
66
54
42
21
18
14
11
29
44
58
44
26

Medium Clouds (% Sky Obscured)

100
100
100
100
94
89
83
78
72
67
44
22
0
0
0
0
1
1
2
2
2
3
2
2

High Clouds (% Sky Obscured)

100
100
100
100
95
87
81
58
26
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

4
2
1
1
0
0
0
0
2
5
7
8
8
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
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

63
58
56
55
69
77
81
67
56
40
35
29
20
18
15
7
10
10
4
7
12
13
17
17

Precipitation Amount (mm)

0.2
0.2
0.2
0.2
0.4
0.4
0.5
0.3
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
89
91
92
92
94
96
96
96
93
89
83
77
70
68
65
64
67
71
75
75
75
76
73

Pressure (mb)

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

Ozone (du)

323
322
322
323
323
323
323
322
328
334
339
343
347
350
351
353
354
353
351
350
352
353
354
353

Monday 22

Waxing Crescent 7%

09:31

18:40

Sun - Rise: 07:20, Set: 16:18, Transit: 11:49. Moon - Rise: 09:31, Set: 18:40. Civil Dark: 16:51 - 06:47. Nautical Dark: 17:27 - 06:11. Astro Dark: 18:02 - 05:36

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: 16/12/25 00:29:37. Forecast: 16/12/25 to 22/12/25. Timezone: UTC-5.00