Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 16

Waning Crescent 11%

No Rise

13:39

05 Bad
06 Bad
07 Bad
08 Good
09 Good
10 Good
11 Good
12 Good
13 OK
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 Bad
04 OK

Sun - Rise: 07:16, Set: 16:16, Transit: 11:46. Moon - Rise: No Rise, 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
78
39
2
2
2
2
12
38
65
96
97
99
94
100
100
100
99
91
84
45
31
92
22

Low Clouds (% Sky Obscured)

0
2
7
2
1
1
1
8
32
29
24
2
2
2
2
1
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

80
12
0
0
0
0
0
0
0
16
32
27
38
89
100
100
100
98
85
77
30
25
39
22

High Clouds (% Sky Obscured)

12
0
0
0
0
0
0
1
5
59
93
94
98
85
100
100
100
64
78
68
45
31
59
0

ISS Passover

Visibility (miles)

9
4
4
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)

4
4
3
3
3
3
4
5
5
4
4
3
3
3
3
3
4
4
4
5
5
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-14
-14
-13
-12
-10
-8
-6
-6
-6
-5
-6
-8
-9
-9
-9
-9
-9
-9
-9
-9
-10
-10
-10
-10

Dew Point (°C)

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

Relative Humidity (%)

90
90
90
86
77
70
65
64
62
64
69
87
90
90
87
85
87
87
87
85
85
85
89
90

Pressure (mb)

1020
1021
1022
1022
1023
1023
1022
1021
1020
1020
1020
1019
1020
1020
1020
1019
1018
1018
1017
1016
1016
1015
1015
1014

Ozone (du)

333
344
331
315
304
294
287
283
283
287
285
286
282
279
276
272
270
267
265
263
262
263
263
263

Wednesday 17

Waning Crescent 6%

05:19

14:10

05 Good
06 Bad
07 OK
08 OK
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 OK
23 OK
00 OK
01 Good
02 OK
03 Bad
04 Bad

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)

7
98
30
37
81
94
89
67
99
98
100
89
89
85
74
76
58
22
26
29
4
17
40
100

Low Clouds (% Sky Obscured)

1
1
9
4
4
23
19
32
67
72
70
89
89
85
74
76
57
19
19
19
4
5
3
10

Medium Clouds (% Sky Obscured)

0
0
5
9
8
47
25
38
96
94
83
0
0
0
0
0
0
0
0
0
0
0
0
44

High Clouds (% Sky Obscured)

7
96
30
37
81
84
82
4
34
81
100
0
0
0
0
0
0
0
0
0
0
9
25
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
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
2
3
2
1
3
5
13
1
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
5
5
6
7
7
9
10
8
10
12
11
12
13
11
11
10
9
6
3
2
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-9
-9
-10
-10
-7
-5
-4
-3
-2
-0
-1
-3
-2
-3
-3
-3
-3
-4
-3
-2
-2
-2
-4
-6

Dew Point (°C)

-8
-8
-8
-7
-6
-4
-4
-3
-1
0
0
-1
1
1
-1
0
-1
-3
-3
-3
-3
-3
-3
-3

Relative Humidity (%)

90
92
90
87
82
78
75
74
74
77
79
80
86
85
79
82
79
73
75
78
86
91
92
94

Pressure (mb)

1013
1013
1012
1012
1011
1011
1009
1007
1007
1007
1008
1009
1010
1011
1013
1014
1016
1017
1019
1020
1020
1021
1021
1021

Ozone (du)

263
265
267
268
269
271
271
274
281
287
295
301
304
307
313
320
325
325
321
319
317
314
313
314

Thursday 18

Waning Crescent 2%

06:22

14:47

05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 OK
11 Bad
12 OK
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

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)

100
81
67
61
65
45
59
36
87
64
74
58
83
95
95
98
99
98
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

4
3
14
3
16
3
15
2
11
7
2
2
57
63
78
97
96
94
94
95
96
98
100
98

Medium Clouds (% Sky Obscured)

91
45
40
28
20
8
8
10
70
60
29
5
21
32
37
80
51
75
100
88
90
97
100
100

High Clouds (% Sky Obscured)

100
75
41
49
14
22
25
10
15
8
25
45
49
87
48
72
80
24
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
7
1
0
0
0
0
0
0

Fog (%)

0
2
20
54
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
Light Rain
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
0
3
35
68
53
28
38
53

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
92
92
91
84
77
73
70
65
70
74
88
94
89
93
94
96
96
98
98
100
98
100
100

Pressure (mb)

1022
1023
1024
1024
1024
1024
1023
1022
1021
1020
1020
1020
1020
1019
1018
1017
1016
1015
1014
1013
1012
1010
1009
1007

Ozone (du)

316
318
316
313
310
306
305
302
302
302
301
300
300
300
302
304
303
301
301
299
299
298
298
298

Friday 19

New Moon 0%

07:20

15:34

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

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
96
91
88
52
30
39
41
32
34
44
44
34
27
19
12
8

Low Clouds (% Sky Obscured)

98
95
95
97
97
98
99
100
96
91
37
9
8
39
41
32
34
44
44
17
15
12
9
6

Medium Clouds (% Sky Obscured)

100
100
98
98
95
73
98
59
96
89
81
39
11
0
3
5
9
8
4
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
74
90
97
68
37
2
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
3
3
3
7
8
1
2
9
9
9
9
9
8
8
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

Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

70
95
95
95
95
95
95
95
95
95
81
66
42
12
23
28
8
11
15
8
9
9
8
9

Precipitation Amount (mm)

0.3
0.9
2.1
2.1
1.8
1.3
1.7
1.2
0.8
0.7
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
8
11
11
12
11
10
8
13
9
6
6
8
8
12
14
15
15
15
16
15
15
15
15

Chance of Frost

Temperature (°C)

5
6
9
10
10
10
11
10
9
7
6
5
4
3
3
2
0
-1
-3
-4
-5
-6
-7
-8

Feels Like (°C)

3
3
6
6
6
7
8
8
4
3
3
1
1
1
-2
-4
-6
-7
-9
-10
-10
-12
-12
-13

Dew Point (°C)

5
6
8
9
9
9
10
10
7
5
4
2
2
1
0
-2
-4
-6
-7
-9
-10
-11
-13
-13

Relative Humidity (%)

100
98
93
93
93
95
96
96
87
87
87
82
83
83
80
78
75
71
72
68
69
65
63
63

Pressure (mb)

1005
1002
999
997
996
994
992
990
990
991
992
992
994
995
995
996
997
999
1000
1001
1002
1005
1006
1007

Ozone (du)

300
302
305
311
310
313
317
320
330
334
341
344
345
351
350
352
361
365
363
351
342
344
342
339

Saturday 20

Waxing Crescent 1%

08:12

16:30

05 Good
06 Good
07 Good
08 OK
09 OK
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
00 Bad
01 Bad
02 Bad
03 Bad
04 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)

4
1
9
16
24
53
71
97
89
82
76
82
91
98
92
89
84
88
93
100
100
100
100
100

Low Clouds (% Sky Obscured)

4
1
0
0
0
0
0
0
0
0
20
13
20
30
28
25
23
22
28
36
56
75
92
91

Medium Clouds (% Sky Obscured)

0
0
9
16
24
48
69
97
89
82
76
73
80
79
78
77
76
81
87
95
96
99
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
2
1
15
15
25
15
20
63
86
87
88
84
88
93
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
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
0
0
0
0
0
0
0
1
1
2
2
1
3
3
2
1
2
3
3
10
15
16
23

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)

14
13
13
12
10
10
9
9
9
7
6
4
4
3
3
4
5
6
5
5
5
5
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

63
63
60
61
55
52
49
47
49
50
52
58
66
65
64
68
69
73
72
71
71
72
76
78

Pressure (mb)

1009
1010
1012
1013
1014
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1015
1015
1014
1014
1013
1013
1013
1012

Ozone (du)

341
345
346
343
344
342
340
336
336
337
333
330
328
322
320
319
317
315
316
316
316
315
315
315

Sunday 21

Waxing Crescent 3%

08:56

17:33

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
00 Bad
01 OK
02 OK
03 OK
04 OK

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
99
99
98
78
60
46
49
53
56
69
59
66
59
60
56
50
48
43
34
25
15
22

Low Clouds (% Sky Obscured)

91
91
78
65
53
48
43
40
27
13
0
2
5
7
18
28
39
50
48
43
34
25
15
22

Medium Clouds (% Sky Obscured)

100
100
89
79
68
44
22
4
4
4
4
4
4
7
23
22
10
4
2
1
0
0
0
0

High Clouds (% Sky Obscured)

100
100
92
83
98
78
40
40
40
45
56
69
59
66
59
60
56
50
48
43
34
25
15
22

ISS Passover

Visibility (miles)

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

24
20
20
17
7
10
11
12
16
20
26
26
22
8
12
11
2
7
10
9
11
10
3
9

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
86
89
81
75
69
66
65
64
69
74
81
75
68
62
65
65
67
66
66
65
67
67
68

Pressure (mb)

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

Ozone (du)

317
320
323
328
334
339
344
348
353
352
351
350
352
353
355
357
359
360
359
357
355
355
355
355

Monday 22

Waxing Crescent 7%

09:31

18:40

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

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)

31
37
36
34
30
21
11
2
2
1
1
1
2
2
10
19
32
54
80
100

Low Clouds (% Sky Obscured)

31
37
36
34
27
19
11
2
1
1
0
0
0
0
0
0
0
1
2
2

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
5
7
32
66
95

High Clouds (% Sky Obscured)

15
0
0
0
0
0
0
0
0
0
0
1
1
0
1
0
0
0
4
10

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

10
8
7
5
0
0
0
0
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-7
-7
-8
-10
-10
-10
-11
-11
-11
-10
-11
-11
-11
-11
-11
-12
-12
-11
-11
-11

Dew Point (°C)

-9
-9
-10
-12
-12
-13
-14
-15
-16
-16
-17
-17
-17
-17
-17
-17
-16
-15
-15
-14

Relative Humidity (%)

66
65
62
60
57
55
50
46
43
43
44
43
44
45
46
48
51
54
58
63

Pressure (mb)

1019
1021
1022
1023
1024
1026
1026
1026
1026
1027
1027
1028
1028
1029
1029
1029
1028
1028
1028
1027

Ozone (du)

359
363
367
369
371
373
370
366
362
357
352
346
345
343
342
340
338
337
341
345

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

Generated: 16/12/25 05:03:21. Forecast: 16/12/25 to 22/12/25. Timezone: UTC-5.00