Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 27

First Quarter 52%

11:46

00:44

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

Sun - Rise: 07:25, Set: 16:55, Transit: 12:10. Moon - Rise: 11:46, Set: 00:44. Civil Dark: 17:24 - 06:55. Nautical Dark: 17:58 - 06:22. Astro Dark: 18:30 - 05:50

Total Clouds (% Sky Obscured)

74
80
95
93
99
88
81
77
68
59
49
46
66
67
66
93
95
76
99
99
99
99
95
96

Low Clouds (% Sky Obscured)

74
80
95
91
98
88
81
77
68
59
49
46
66
67
66
86
90
76
88
90
95
95
95
95

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
0
0
4
4
7
18
9
10
16
17
10
8
45
30
58
72

High Clouds (% Sky Obscured)

8
2
3
3
9
3
2
1
1
2
3
7
10
5
7
49
83
47
97
75
48
73
29
20

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
56
4
1
1
2
2

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
73
70
66
65
62
58
58
64
75
79
82
88
91
92
92
92
92
92
92
92
92
92
92

Pressure (mb)

1016
1018
1019
1019
1019
1018
1019
1019
1020
1021
1021
1022
1023
1023
1024
1024
1024
1024
1024
1024
1023
1023
1023
1023

Ozone (du)

281
282
282
281
278
276
273
271
273
273
275
275
277
279
279
281
282
281
280
279
276
274
273
273

Sunday 28

Waxing Gibbous 63%

12:11

01:55

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 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 07:25, Set: 16:56, Transit: 12:10. Moon - Rise: 12:11, Set: 01:55. Civil Dark: 17:25 - 06:55. Nautical Dark: 17:58 - 06:22. Astro Dark: 18:31 - 05:50

Total Clouds (% Sky Obscured)

100
99
97
100
100
97
100
100
98
100
100
100
100
100
98
98
89
100
88
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
93
87
93
80
92
91
73
89
89
94
95
95
98
98
87
62
54
72
61
69
65
78
90

Medium Clouds (% Sky Obscured)

92
97
84
93
89
88
94
100
70
25
84
32
72
62
85
59
13
11
34
100
99
89
91
94

High Clouds (% Sky Obscured)

60
76
80
100
90
52
100
100
87
100
100
97
43
48
24
81
68
99
75
100
100
100
100
79

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
1
0
0
0
1
4
6
0
1
4
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)

3
5
5
6
7
8
8
8
8
8
8
9
9
11
12
12
13
13
14
13
13
14
13
14

Chance of Frost

Temperature (°C)

1
2
3
5
6
7
8
8
8
7
6
7
7
8
9
9
10
11
11
12
13
14
14
15

Feels Like (°C)

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

Dew Point (°C)

-1
-2
-2
-2
-1
0
2
2
3
4
4
4
5
5
6
7
8
8
9
10
11
11
11
12

Relative Humidity (%)

89
78
70
65
62
62
64
68
71
81
86
84
84
82
84
85
85
85
86
86
84
84
82
82

Pressure (mb)

1023
1023
1023
1022
1020
1019
1018
1018
1016
1016
1015
1014
1013
1012
1011
1009
1008
1007
1006
1005
1003
1002
1001
1000

Ozone (du)

273
273
273
273
273
274
272
273
274
275
274
276
275
272
272
271
270
269
268
267
266
266
263
261

Monday 29

Waxing Gibbous 74%

12:40

03:10

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

Sun - Rise: 07:25, Set: 16:56, Transit: 12:11. Moon - Rise: 12:40, Set: 03:10. Civil Dark: 17:26 - 06:56. Nautical Dark: 17:59 - 06:22. Astro Dark: 18:31 - 05:50

Total Clouds (% Sky Obscured)

97
99
100
96
83
37
4
0
0
0
26
49
33
58
38
6
4
3
1
0
5
9
14
13

Low Clouds (% Sky Obscured)

81
86
80
59
17
3
0
0
0
0
26
49
33
58
38
6
4
3
1
0
5
9
14
13

Medium Clouds (% Sky Obscured)

84
90
97
86
76
35
0
0
0
0
0
3
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

81
62
85
6
2
0
3
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
7
32
25
3
2
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)

14
14
15
15
15
15
15
17
15
14
14
14
15
14
13
12
11
10
10
10
9
9
8
7

Chance of Frost

Temperature (°C)

15
16
16
16
14
15
14
12
10
8
6
4
2
1
1
0
-0
-1
-1
-1
-1
-2
-2
-2

Feels Like (°C)

12
13
13
11
9
11
10
7
6
3
1
-1
-3
-4
-4
-5
-4
-5
-5
-5
-5
-6
-6
-6

Dew Point (°C)

12
12
12
8
3
1
1
-1
-2
-4
-5
-6
-7
-8
-9
-9
-9
-10
-10
-10
-11
-11
-11
-11

Relative Humidity (%)

82
79
75
61
47
39
41
39
42
43
46
49
49
49
48
49
50
50
51
50
49
49
50
50

Pressure (mb)

999
999
999
999
998
997
998
998
999
1000
1002
1003
1004
1005
1006
1006
1006
1007
1008
1008
1009
1010
1010
1011

Ozone (du)

260
262
265
267
270
269
271
275
276
281
284
290
299
303
310
321
328
335
341
344
346
346
344
344

Tuesday 30

Waxing Gibbous 84%

13:15

04:28

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

Sun - Rise: 07:25, Set: 16:57, Transit: 12:11. Moon - Rise: 13:15, Set: 04:28. Civil Dark: 17:27 - 06:56. Nautical Dark: 18:00 - 06:23. Astro Dark: 18:32 - 05:50

Total Clouds (% Sky Obscured)

12
10
16
20
25
17
8
0
13
25
32
20
9
30
31
37
47
42
46
50
44
23
23
28

Low Clouds (% Sky Obscured)

12
10
16
20
25
17
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
11
24
26
19
9
1
26
22
18
24
29
35
37
23
23
28

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
1
0
0
0
30
31
37
47
42
46
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
1
2
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-11
-11
-12
-12
-12
-12
-12
-11
-11
-11
-11
-11
-11
-11
-11
-11
-11
-10
-10
-11
-11
-10
-11
-11

Relative Humidity (%)

48
44
40
36
33
32
32
35
38
42
45
46
48
49
49
51
54
56
56
55
55
59
57
58

Pressure (mb)

1012
1013
1014
1014
1013
1013
1013
1014
1014
1015
1016
1016
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

342
341
340
337
337
340
342
357
369
387
397
394
383
372
371
371
368
370
373
380
372
360
350
337

Wednesday 31

Waxing Gibbous 92%

13:59

05:45

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

Sun - Rise: 07:25, Set: 16:58, Transit: 12:12. Moon - Rise: 13:59, Set: 05:45. Civil Dark: 17:27 - 06:56. Nautical Dark: 18:00 - 06:23. Astro Dark: 18:33 - 05:51

Total Clouds (% Sky Obscured)

27
31
24
18
14
53
57
55
71
70
72
74
66
86
82
63
45
42
39
36
57
84
100
92

Low Clouds (% Sky Obscured)

0
0
0
0
0
8
16
24
26
29
31
21
10
0
0
0
0
11
22
33
48
63
77
60

Medium Clouds (% Sky Obscured)

27
31
24
18
14
40
57
55
71
70
72
74
66
70
65
51
36
29
19
10
40
74
100
92

High Clouds (% Sky Obscured)

0
0
0
4
5
45
52
55
54
32
7
5
3
1
6
10
22
25
37
36
30
35
40
40

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
8
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
None
None
None
None
None
None
Snow

Precipitation Probability (%)

0
0
0
0
0
2
2
1
5
6
3
4
2
0
0
0
0
0
0
0
6
9
10
36

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
0.1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

56
44
35
29
28
29
29
34
42
54
60
65
69
71
74
73
73
72
72
72
72
71
71
70

Pressure (mb)

1016
1016
1016
1015
1014
1012
1012
1011
1011
1011
1012
1012
1012
1012
1012
1011
1011
1010
1010
1010
1009
1009
1010
1010

Ozone (du)

328
320
316
314
314
316
309
310
312
315
316
313
310
307
305
304
303
302
304
305
307
310
313
315

Thursday 1

Waxing Gibbous 98%

14:55

06:56

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 OK
22 OK
23 OK
00 OK
01 Good
02 Good
03 Good
04 Good
05 Good
06 Good
07 Good

Sun - Rise: 07:25, Set: 16:59, Transit: 12:12. Moon - Rise: 14:55, Set: 06:56. Civil Dark: 17:28 - 06:56. Nautical Dark: 18:01 - 06:23. Astro Dark: 18:33 - 05:51

Total Clouds (% Sky Obscured)

85
74
72
69
60
63
75
94
68
41
20
15
15
25
30
25
20
11
8
7
10
5
0
0

Low Clouds (% Sky Obscured)

42
25
20
15
10
7
3
0
0
0
0
0
0
10
20
25
20
11
8
5
0
0
0
0

Medium Clouds (% Sky Obscured)

85
74
72
69
60
63
58
60
47
29
0
0
0
0
0
5
11
11
8
0
0
0
0
0

High Clouds (% Sky Obscured)

35
35
54
69
60
52
24
0
8
16
20
15
15
25
12
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

5
3
0
3
6
9
9
9
9
7
5
4
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

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

Precipitation Probability (%)

51
63
60
53
46
34
20
2
15
19
19
14
13
11
9
3
1
2
4
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-3
-4
-3
-3
-4
-4
1
1
0
1
1
1
-3
-3
-4
-5
-5
-5
-11
-12
-13
-12
-12
-13

Dew Point (°C)

-3
-2
0
0
-0
-0
-0
-1
-1
-1
-1
-1
-2
-5
-7
-9
-11
-13
-13
-14
-14
-15
-15
-16

Relative Humidity (%)

78
88
96
91
83
77
73
68
65
71
77
86
83
78
75
68
61
56
57
56
57
56
56
53

Pressure (mb)

1010
1011
1012
1011
1010
1010
1009
1009
1009
1009
1010
1011
1011
1012
1012
1013
1013
1014
1014
1014
1014
1015
1015
1016

Ozone (du)

321
327
333
335
337
338
334
329
324
326
328
331
334
338
342
378
414
450
438
426
414
401
389
376

Friday 2

Waxing Gibbous 100%

16:02

07:55

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

Sun - Rise: 07:25, Set: 17:00, Transit: 12:12. Moon - Rise: 16:02, Set: 07:55. Civil Dark: 17:29 - 06:56. Nautical Dark: 18:02 - 06:23. Astro Dark: 18:34 - 05:51

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
1
0
0
0
0
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

High Clouds (% Sky Obscured)

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

Fog (%)

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

Precipitation Probability (%)

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

Wind Speed/Direction (mph)

6
6
7
8
9
10
10
10
9
9
9
8
8
8
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-16
-16
-17
-17
-16
-16
-16
-15
-15
-14
-14
-13
-13
-13
-13
-14
-14

Relative Humidity (%)

49
44
39
37
35
33
34
35
36
39
44
48
50
52
54
53
53

Pressure (mb)

1016
1016
1017
1016
1015
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015

Ozone (du)

379
381
383
396
409
421
407
392
378
373
368
362
360
357
354
355
357

Forecast for Friendship Acres, Charles County, United States of America (38.44,-77.13)

Generated: 27/12/25 07:17:35. Forecast: 27/12/25 to 02/01/26. Timezone: UTC-5.00