Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 21

Waxing Crescent 3%

No Rise

17:31

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

Sun - Rise: 07:11, Set: 16:16, Transit: 11:43. Moon - Rise: No Rise, Set: 17:31. Civil Dark: 16:47 - 06:39. Nautical Dark: 17:23 - 06:04. Astro Dark: 17:57 - 05:30

Total Clouds (% Sky Obscured)

29
21
46
49
56
58
12
23
27
20
39
34
36
59
49
47
17
19
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

0
0
45
49
23
26
12
23
27
20
36
34
36
59
49
47
17
19
0
0
0
0
0
0

Medium 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

High Clouds (% Sky Obscured)

2
21
0
1
20
40
2
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 (%)

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)

11
12
13
14
14
13
11
12
11
11
11
11
11
11
11
11
12
12
11
11
10
10
9
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-1
-2
-2
-4
-6
-7
-7
-8
-8
-8
-8
-9
-10
-11
-11
-11
-12
-13
-14
-15
-16
-17
-17
-18

Relative Humidity (%)

62
54
52
51
47
47
50
52
55
56
58
57
52
51
52
52
50
48
47
46
43
42
41
38

Pressure (mb)

1012
1013
1013
1013
1014
1015
1016
1017
1018
1019
1020
1021
1021
1022
1022
1022
1023
1025
1025
1026
1027
1028
1028
1029

Ozone (du)

288
288
290
290
292
296
302
307
314
321
315
309
312
316
318
319
321
326
332
341
348
347
346
347

Monday 22

Waxing Crescent 7%

09:22

18:38

09 Good
10 Good
11 Good
12 Good
13 Good
14 Good
15 Good
16 Good
17 OK
18 OK
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: 07:12, Set: 16:16, Transit: 11:44. Moon - Rise: 09:22, Set: 18:38. Civil Dark: 16:48 - 06:40. Nautical Dark: 17:23 - 06:04. Astro Dark: 17:58 - 05:30

Total Clouds (% Sky Obscured)

0
0
0
0
0
4
12
3
23
29
49
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
29
22
45
45
54
57

Medium Clouds (% Sky Obscured)

0
0
0
0
0
3
9
0
0
0
3
48
94
100
97
100
100
100
100
100
100
100
92
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
19
27
44
100
95
72
100
99
100
100
100
100
100
100
71
5

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
1
2
5
11
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)

11
13
13
12
12
10
8
6
4
4
3
3
4
4
4
5
4
4
4
4
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-18
-18
-18
-18
-18
-18
-16
-15
-14
-13
-12
-12
-11
-10
-9
-8
-8
-8
-8
-8
-7
-7
-7
-6

Relative Humidity (%)

35
32
30
28
26
27
29
33
39
43
47
51
55
59
64
67
68
67
65
63
64
67
68
68

Pressure (mb)

1029
1030
1029
1029
1028
1028
1029
1029
1029
1029
1029
1028
1027
1027
1027
1026
1026
1026
1026
1025
1025
1025
1025
1024

Ozone (du)

351
350
346
342
345
344
341
350
356
350
344
345
349
350
350
351
351
350
345
340
335
334
334
333

Tuesday 23

Waxing Crescent 13%

09:52

19:46

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 Bad
07 Bad
08 Bad

Sun - Rise: 07:12, Set: 16:17, Transit: 11:44. Moon - Rise: 09:52, Set: 19:46. Civil Dark: 16:48 - 06:40. Nautical Dark: 17:24 - 06:05. Astro Dark: 17:58 - 05:31

Total Clouds (% Sky Obscured)

100
99
100
99
99
99
100
100
97
93
95
97
98
98
96
96
98
99
100
97
95
82
67
82

Low Clouds (% Sky Obscured)

69
51
63
65
66
63
77
86
86
85
90
94
94
91
88
85
89
91
94
87
78
68
64
74

Medium Clouds (% Sky Obscured)

98
98
100
99
99
99
100
100
97
93
95
95
96
98
96
96
30
23
20
12
9
9
6
2

High Clouds (% Sky Obscured)

5
5
5
5
0
10
9
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
1
0
0
0
0
0
0
0
0
0
0
3
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
2
9
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

51
51
47
44
42
53
57
58
49
41
33
49
60
69
72
71
66
67
68
65
60
44
37
29

Precipitation Amount (mm)

0.3
0.2
0.2
0.2
0.1
0.2
0.2
0.2
0.2
0
0
0.2
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.2
0
0
0

Wind Speed/Direction (mph)

4
5
4
3
2
2
3
4
3
3
3
2
2
2
2
1
1
2
2
3
3
3
4
6

Chance of Frost

Temperature (°C)

-1
0
1
1
1
1
1
0
-0
-0
-0
-0
-1
-0
-0
-0
-1
-1
-1
-1
-1
-1
-1
-1

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

63
58
55
55
54
58
65
70
71
72
75
84
98
100
98
100
98
98
100
98
98
98
96
92

Pressure (mb)

1024
1024
1023
1021
1020
1020
1020
1020
1019
1020
1019
1019
1019
1018
1018
1018
1017
1017
1017
1017
1017
1018
1018
1019

Ozone (du)

334
332
327
325
326
325
325
325
325
325
328
334
338
338
336
334
332
333
333
331
329
330
329
328

Wednesday 24

Waxing Crescent 21%

10:17

20:54

09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 OK
15 OK
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: 07:12, Set: 16:17, Transit: 11:45. Moon - Rise: 10:17, Set: 20:54. Civil Dark: 16:49 - 06:41. Nautical Dark: 17:25 - 06:05. Astro Dark: 17:59 - 05:31

Total Clouds (% Sky Obscured)

59
45
49
56
51
42
33
47
64
71
55
50
94
100
100
100
100
100
100
98
100
99
98
88

Low Clouds (% Sky Obscured)

59
45
49
50
45
41
33
40
47
54
35
16
1
2
1
1
2
1
1
1
10
6
10
19

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
7
10
15
12
14
15
72
70
100
100
100
100
82
85
91
73
68

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
33
50
94
93
85
78
84
91
98
66
34
3
35
68

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 (%)

13
14
11
6
5
4
2
2
2
0
0
0
0
0
0
0
1
2
3
4
5
7
12
13

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
83
74
70
68
68
70
78
91
92
92
92
91
91
89
87
84
87
84
84
87
81
83
75

Pressure (mb)

1020
1021
1021
1020
1021
1022
1023
1024
1024
1025
1025
1025
1025
1025
1024
1024
1024
1023
1022
1021
1020
1020
1019
1019

Ozone (du)

324
324
325
325
321
321
321
321
319
316
314
314
311
311
311
312
310
309
308
311
313
314
315
315

Thursday 25

Waxing Crescent 30%

10:39

22:03

09 Bad
10 Bad
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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:13, Set: 16:18, Transit: 11:45. Moon - Rise: 10:39, Set: 22:03. Civil Dark: 16:50 - 06:41. Nautical Dark: 17:25 - 06:05. Astro Dark: 17:59 - 05:31

Total Clouds (% Sky Obscured)

97
58
33
23
62
83
100
100
100
100
100
100
100
100
99
99
98
97
98
99
100
100
100
100

Low Clouds (% Sky Obscured)

31
19
10
4
22
39
56
39
22
10
10
10
10
5
5
0
0
0
0
24
48
71
81
90

Medium Clouds (% Sky Obscured)

59
30
16
2
0
0
0
17
33
55
77
86
95
94
94
96
89
82
77
85
93
100
100
100

High Clouds (% Sky Obscured)

97
58
33
5
37
68
100
100
100
100
98
96
93
86
78
70
76
83
98
99
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
7
5
2
2
1
0
0
0
0
0
0
0
2

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
Very Light Rain
Snow

Precipitation Probability (%)

11
10
7
0
0
1
1
5
3
0
3
1
0
16
18
4
15
14
11
16
15
8
61
94

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
0.2
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
72
67
66
72
82
83
93
94
93
94
96
98
98
100
100
98
100
100
100
100
98
98
98

Pressure (mb)

1018
1018
1017
1016
1015
1015
1016
1016
1016
1017
1017
1017
1017
1016
1016
1015
1015
1014
1013
1012
1011
1010
1009
1008

Ozone (du)

316
318
319
318
316
313
311
308
307
306
307
304
301
298
296
294
293
291
289
287
284
281
278
279

Friday 26

Waxing Crescent 41%

10:59

23:12

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 OK
04 OK
05 Good
06 Good
07 Good
08 Good

Sun - Rise: 07:13, Set: 16:19, Transit: 11:46. Moon - Rise: 10:59, Set: 23:12. Civil Dark: 16:50 - 06:41. Nautical Dark: 17:26 - 06:06. Astro Dark: 18:00 - 05:32

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
98
98
98
91
84
79
77
66
54
47
40
33
22
12
2
3
1

Low Clouds (% Sky Obscured)

100
100
100
100
98
96
94
96
98
98
91
84
79
77
66
54
47
40
33
22
12
2
3
1

Medium Clouds (% Sky Obscured)

100
100
100
100
89
78
67
44
22
0
13
28
40
30
10
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
67
33
0
33
67
79
67
33
0
0
2
9
7
5
0
0
0

ISS Passover

Visibility (miles)

3
5
6
8
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

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

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
85
75
70
63
54
43
15
13
10
1
1
1
0
0
0

Precipitation Amount (mm)

0.8
1.3
1.6
1.9
1.9
1.9
1.7
1.4
1
0.3
0.3
0.3
0.3
0.2
0.1
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
10
11
12
13
12
12
14
13
13
14
14
14
14
14
14
13
13
12
12
11
10
9
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-2
-1
1
1
1
5
5
4
5
6
6
-3
-4
-5
-6
-6
-7
-12
-13
-12
-13
-13
-13
-13

Dew Point (°C)

2
3
5
6
7
6
6
4
2
0
-2
-5
-7
-9
-11
-13
-15
-16
-17
-18
-19
-19
-20
-20

Relative Humidity (%)

96
96
94
94
93
90
85
81
78
73
70
67
66
64
59
56
51
49
45
42
41
41
39
36

Pressure (mb)

1007
1005
1003
1001
999
998
998
998
999
1001
1002
1004
1007
1009
1011
1013
1015
1017
1018
1020
1021
1023
1024
1025

Ozone (du)

279
280
279
279
279
282
285
288
296
305
313
317
321
325
330
335
340
347
353
360
369
377
386
386

Saturday 27

First Quarter 52%

11:20

00:23

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

Sun - Rise: 07:13, Set: 16:19, Transit: 11:46. Moon - Rise: 11:20, Set: 00:23. Civil Dark: 16:51 - 06:41. Nautical Dark: 17:27 - 06:06. Astro Dark: 18:01 - 05:32

Total Clouds (% Sky Obscured)

0
2
5
7
7
18
40
45
54
66
49
35
18
45
72
99

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
8
18
18
27
29
34

Medium Clouds (% Sky Obscured)

0
0
0
0
1
13
30
45
54
66
37
22
13
26
39
54

High Clouds (% Sky Obscured)

0
2
5
7
7
18
40
45
54
66
49
30
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-12
-12
-11
-11
-11
-6
-6
-6
-6
-6
-6
-8
-7
-8
-7
-7

Dew Point (°C)

-20
-21
-21
-21
-21
-21
-20
-20
-19
-19
-19
-18
-18
-17
-17
-16

Relative Humidity (%)

34
31
28
25
23
25
27
28
30
31
32
34
37
39
40
41

Pressure (mb)

1027
1028
1027
1027
1027
1027
1027
1027
1027
1027
1028
1028
1027
1027
1027
1026

Ozone (du)

386
386
389
392
394
392
390
387
378
368
358
354
349
345
345
346

Forecast for Cedarwood, Middlesex, United States of America (42.36,-71.26)

Generated: 21/12/25 09:18:43. Forecast: 21/12/25 to 27/12/25. Timezone: UTC-5.00