Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 17

Waning Crescent 6%

06:13

14:06

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

Sun - Rise: 07:10, Set: 16:12, Transit: 11:41. Moon - Rise: 06:13, Set: 14:06. Civil Dark: 16:44 - 06:38. Nautical Dark: 17:20 - 06:02. Astro Dark: 17:54 - 05:28

Total Clouds (% Sky Obscured)

47
58
39
27
42
44
73
15
9
18
35
35
8
1
1
0
1
1
6
2
2
1
1
1

Low Clouds (% Sky Obscured)

23
31
39
0
0
0
0
0
0
0
0
0
8
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

40
1
0
27
42
44
69
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

47
58
39
27
35
11
11
15
0
0
1
0
0
0
0
0
0
0
6
1
1
0
0
0

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

60
62
61
61
65
68
72
80
83
79
74
72
69
72
72
76
86
89
87
87
87
87
89
81

Pressure (mb)

1012
1011
1010
1008
1008
1007
1008
1008
1009
1010
1012
1013
1015
1017
1018
1019
1020
1021
1022
1022
1023
1024
1025
1025

Ozone (du)

260
259
259
261
267
273
280
286
295
298
302
307
310
311
310
313
313
312
312
314
315
316
309
303

Thursday 18

Waning Crescent 2%

07:11

14:44

09 Good
10 Good
11 Good
12 Good
13 OK
14 OK
15 Bad
16 Bad
17 OK
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

Sun - Rise: 07:10, Set: 16:13, Transit: 11:41. Moon - Rise: 07:11, Set: 14:44. Civil Dark: 16:45 - 06:38. Nautical Dark: 17:20 - 06:03. Astro Dark: 17:55 - 05:28

Total Clouds (% Sky Obscured)

0
0
4
8
37
30
70
56
32
40
56
97
91
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
52
32
40
56
69
52
69
85
94
90
91
95
90
92
90
86
82

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
25
83
80
97
100
64
100
100
81
98
93
100
100
100

High Clouds (% Sky Obscured)

0
0
4
8
37
30
70
42
0
0
3
37
47
100
100
86
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
6
4
9
9
9
9
9
8

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
Light Rain
None
None
None
None
None
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
5
50
73
29
37
23
21
47
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0
0
0
0
0
1

Wind Speed/Direction (mph)

3
4
5
5
5
6
6
6
6
5
5
4
4
3
2
3
5
7
8
9
11
13
15
17

Chance of Frost

Temperature (°C)

0
3
4
5
6
6
5
3
2
2
2
3
3
3
3
4
5
6
7
8
9
10
11
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
59
55
54
55
60
65
76
88
93
94
96
98
96
98
100
98
94
96
95
93
90
84
84

Pressure (mb)

1026
1027
1026
1025
1024
1024
1024
1023
1024
1023
1023
1022
1020
1019
1018
1016
1015
1014
1012
1010
1008
1007
1004
1002

Ozone (du)

302
302
299
295
295
296
296
292
290
289
292
296
298
297
296
296
296
294
292
293
292
294
292
290

Friday 19

New Moon 0%

08:03

15:31

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

Sun - Rise: 07:11, Set: 16:13, Transit: 11:42. Moon - Rise: 08:03, Set: 15:31. Civil Dark: 16:45 - 06:39. Nautical Dark: 17:21 - 06:03. Astro Dark: 17:55 - 05:29

Total Clouds (% Sky Obscured)

100
100
100
100
100
98
61
97
99
92
86
63
62
60
17
37
37
20
55
22
43
3
3
3

Low Clouds (% Sky Obscured)

89
97
94
93
100
64
56
89
82
81
56
45
62
57
17
31
35
20
41
12
16
1
1
1

Medium Clouds (% Sky Obscured)

100
100
100
100
100
98
61
22
28
24
30
63
62
2
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
60
82
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

3
5
3
1
3
3
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

Light Rain
Moderate Rain
Moderate Rain
Moderate Rain
Moderate Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
95
95
88
87
20
40
30
26
3
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

1.9
3
4.6
2.7
2.6
0.5
0.6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

19
21
20
18
16
14
10
5
9
11
13
15
15
14
16
16
16
15
14
15
14
14
12
11

Chance of Frost

Temperature (°C)

13
14
14
14
14
14
10
9
8
7
5
3
1
1
0
-0
-1
-1
-1
-1
-2
-3
-3
-3

Feels Like (°C)

8
8
9
10
10
10
6
6
4
2
0
-4
-5
-6
-7
-6
-7
-7
-6
-8
-8
-9
-8
-7

Dew Point (°C)

12
12
12
12
12
13
8
7
6
4
2
-1
-4
-5
-6
-6
-7
-7
-7
-8
-9
-10
-11
-11

Relative Humidity (%)

89
86
89
89
90
93
85
91
87
79
82
74
70
69
65
65
62
65
65
62
58
57
56
55

Pressure (mb)

1000
998
995
992
990
990
991
992
993
994
996
997
999
1000
1001
1002
1004
1006
1008
1009
1011
1013
1015
1016

Ozone (du)

291
296
298
300
306
314
322
330
338
347
354
357
361
362
360
365
367
368
361
356
354
353
355
353

Saturday 20

Waxing Crescent 1%

08:47

16:27

09 Good
10 Good
11 Good
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

Sun - Rise: 07:11, Set: 16:14, Transit: 11:42. Moon - Rise: 08:47, Set: 16:27. Civil Dark: 16:46 - 06:39. Nautical Dark: 17:21 - 06:04. Astro Dark: 17:56 - 05:29

Total Clouds (% Sky Obscured)

0
2
7
53
67
79
94
96
98
100
100
100
100
100
100
100
100
100
100
100
100
98
75
43

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
22
29
25
8
18
25
8
11
22
28
33
41
32
29
27
20
9

Medium Clouds (% Sky Obscured)

0
0
0
0
12
79
94
96
98
82
72
62
100
100
100
100
100
100
93
100
100
71
75
43

High Clouds (% Sky Obscured)

0
2
4
11
7
8
9
39
70
100
100
100
100
100
100
100
100
100
96
67
33
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
1
1
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
26
38
25
3
2
3
4
8
26
32
31
25
19

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-11
-12
-13
-13
-13
-13
-12
-10
-10
-10
-10
-10
-9
-9
-9
-7
-4
-2
-2
-2
-2
-2
-2
-2

Relative Humidity (%)

51
43
39
35
34
34
39
45
46
46
48
50
51
50
50
58
71
78
77
77
76
76
76
74

Pressure (mb)

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

Ozone (du)

349
345
341
338
337
330
325
322
317
319
319
318
314
313
315
314
310
308
307
304
305
305
308
311

Sunday 21

Waxing Crescent 3%

No Rise

17:29

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

Sun - Rise: 07:12, Set: 16:14, Transit: 11:43. Moon - Rise: No Rise, Set: 17:29. Civil Dark: 16:46 - 06:40. Nautical Dark: 17:22 - 06:04. Astro Dark: 17:56 - 05:30

Total Clouds (% Sky Obscured)

15
18
17
25
17
8
0
19
36
53
56
56
54
36
22
8
26
18
7
5
6
6
13
20

Low Clouds (% Sky Obscured)

5
14
17
25
17
8
0
19
36
53
56
56
54
36
22
7
26
18
7
5
6
0
0
0

Medium Clouds (% Sky Obscured)

10
10
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
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
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
0
0
1
1
0
0
0
0
0
0
0
0
2
6
8
6
2
3
2
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)

9
9
10
12
13
13
12
11
10
9
10
10
11
11
11
12
13
13
13
13
12
12
11
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-2
-2
-3
-3
-3
-4
-6
-7
-7
-7
-7
-7
-7
-7
-7
-8
-9
-10
-11
-12
-13
-14
-15
-15

Relative Humidity (%)

69
68
63
59
58
57
55
55
58
62
61
59
62
64
64
63
59
58
56
54
54
53
52
49

Pressure (mb)

1011
1011
1011
1011
1011
1012
1013
1014
1014
1015
1016
1016
1017
1017
1018
1018
1019
1019
1020
1021
1022
1023
1025
1025

Ozone (du)

320
329
330
332
333
334
335
335
331
334
338
344
350
358
366
368
371
373
375
378
376
375
373
372

Monday 22

Waxing Crescent 7%

09:23

18:36

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

Sun - Rise: 07:12, Set: 16:15, Transit: 11:43. Moon - Rise: 09:23, Set: 18:36. Civil Dark: 16:47 - 06:40. Nautical Dark: 17:22 - 06:05. Astro Dark: 17:57 - 05:30

Total Clouds (% Sky Obscured)

27
18
10
1
2
2
2
14
26
41
32
44
43
56
59
58
49
49
45
36
27
19
43
70

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
7
10
7
3
0
28
50

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
14
26
41
32
44
43
41
40
33
19
15
5
1
1
2
24
46

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
14
26
41
32
33
0
12
23
34
40
49
45
36
27
19
43
70

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
1
0
23
33

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-15
-15
-15
-15
-14
-14
-13
-13
-13
-14
-15
-15
-15
-15
-15
-14
-14
-14
-14
-14
-14
-14
-14
-14

Relative Humidity (%)

46
43
42
41
40
43
45
47
48
47
47
47
47
47
48
49
49
49
49
49
49
49
50
45

Pressure (mb)

1026
1027
1027
1027
1027
1027
1028
1028
1029
1029
1030
1030
1029
1029
1029
1029
1029
1029
1028
1028
1028
1028
1028
1028

Ozone (du)

371
370
368
367
365
367
369
372
378
385
392
388
383
378
382
385
389
387
384
382
376
371
365
358

Tuesday 23

Waxing Crescent 13%

09:52

19:45

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 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 OK

Sun - Rise: 07:13, Set: 16:15, Transit: 11:44. Moon - Rise: 09:52, Set: 19:45. Civil Dark: 16:47 - 06:41. Nautical Dark: 17:23 - 06:05. Astro Dark: 17:57 - 05:31

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
98
79
60
40

Low Clouds (% Sky Obscured)

75
47
11
3
9
17
26
48
70
92
94
95
98
96
96
97
97
97
96
77
57
39

Medium Clouds (% Sky Obscured)

68
79
90
100
99
99
98
99
99
100
100
100
100
100
100
100
98
96
94
63
31
0

High Clouds (% Sky Obscured)

100
89
94
58
82
97
100
97
94
89
85
80
66
67
68
64
76
91
91
61
31
1

ISS Passover

Visibility (miles)

9
9
9
8
8
8
9
9
6
4
1
1
1
0
0
0
0
3
6
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

Precipitation Type

Snow
Snow
Snow
Snow
Sleet
Snow
None
None
None
None
None
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None

Precipitation Probability (%)

39
60
74
85
69
52
33
29
27
26
34
42
50
51
54
58
46
34
13
10
6
2

Precipitation Amount (mm)

0.1
0.3
0.5
0.7
0.4
0.2
0
0
0
0
0
0.1
0.2
0.2
0.2
0.3
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-15
-16
-16
-16
-16
-16
-15
-14
-14
-14
-14
-13
-13
-12
-9
-7
-4
-4
-5
-5
-5
-5

Relative Humidity (%)

42
38
36
34
32
34
36
39
40
40
41
42
44
46
58
73
92
91
86
82
84
86

Pressure (mb)

1028
1028
1026
1025
1023
1022
1022
1021
1020
1020
1020
1019
1018
1018
1017
1016
1016
1015
1015
1015
1015
1015

Ozone (du)

351
344
341
338
334
334
333
333
334
334
335
333
331
330
329
329
329
329
329
329
331
333

Forecast for Andover, Essex, United States of America (42.66,-71.14)

Generated: 17/12/25 09:41:45. Forecast: 17/12/25 to 23/12/25. Timezone: UTC-5.00