Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 28

Waxing Gibbous 63%

12:37

01:56

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
09 Bad
10 Bad
11 Bad
12 Good
13 Good
14 Good

Sun - Rise: 07:27, Set: 16:52, Transit: 12:10. Moon - Rise: 12:37, Set: 01:56. Civil Dark: 17:22 - 06:57. Nautical Dark: 17:56 - 06:23. Astro Dark: 18:28 - 05:50

Total Clouds (% Sky Obscured)

100
100
100
100
100
97
93
100
100
100
100
100
100
100
100
100
100
100
100
78
79
2
0
12

Low Clouds (% Sky Obscured)

78
64
71
87
81
92
90
92
93
92
88
84
72
67
73
82
96
91
85
75
77
2
0
9

Medium Clouds (% Sky Obscured)

100
100
88
94
82
59
58
9
4
0
73
60
85
97
100
100
100
100
95
70
39
0
0
0

High Clouds (% Sky Obscured)

100
100
100
93
100
65
46
100
100
100
100
100
100
100
100
100
100
100
73
2
0
0
0
3

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
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
Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

2
0
0
0
0
0
0
0
0
0
0
0
0
0
4
64
50
45
54
28
6
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.7
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
8
7
5
8
9
9
10
10
10
11
12
12
13
14
14
14
13
12
12
13
20
19
20

Chance of Frost

Temperature (°C)

3
3
3
2
3
4
4
5
5
6
6
7
7
9
9
10
10
11
11
12
13
14
13
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
77
80
83
85
85
85
85
88
90
91
91
93
93
93
93
93
91
84
84
65
46
47
43

Pressure (mb)

1017
1016
1015
1015
1014
1013
1011
1010
1009
1008
1006
1005
1003
1001
1000
999
999
999
999
999
999
999
999
1000

Ozone (du)

273
273
272
273
273
272
271
271
271
271
271
270
268
267
267
265
266
268
270
270
275
280
281
294

Monday 29

Waxing Gibbous 74%

13:12

03:12

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

Sun - Rise: 07:27, Set: 16:53, Transit: 12:10. Moon - Rise: 13:12, Set: 03:12. Civil Dark: 17:23 - 06:57. Nautical Dark: 17:56 - 06:23. Astro Dark: 18:29 - 05:51

Total Clouds (% Sky Obscured)

18
24
26
23
37
61
44
43
37
47
31
39
23
14
12
14
14
12
14
9
10
25
63
58

Low Clouds (% Sky Obscured)

15
18
19
15
36
61
44
42
37
47
25
33
23
14
12
14
14
12
14
9
10
23
0
22

Medium Clouds (% Sky Obscured)

1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
22
30
30

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
1
45
45

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
1
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)

20
20
19
18
17
17
18
18
18
18
17
17
17
17
17
17
16
16
16
17
18
18
17
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-3
-5
-6
-8
-9
-10
-10
-10
-10
-10
-10
-11
-11
-12
-12
-13
-13
-13
-13
-13
-14
-13
-13
-12

Relative Humidity (%)

45
48
50
51
49
49
50
51
52
51
51
49
48
49
48
47
48
48
46
43
38
37
36
40

Pressure (mb)

1001
1002
1004
1005
1006
1006
1006
1007
1007
1007
1008
1008
1009
1009
1009
1010
1011
1012
1013
1013
1013
1013
1012
1012

Ozone (du)

295
306
316
322
328
336
341
345
348
351
353
355
356
356
358
359
361
363
371
371
380
394
401
411

Tuesday 30

Waxing Gibbous 84%

13:55

04:30

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

Sun - Rise: 07:27, Set: 16:54, Transit: 12:11. Moon - Rise: 13:55, Set: 04:30. Civil Dark: 17:24 - 06:57. Nautical Dark: 17:57 - 06:23. Astro Dark: 18:30 - 05:51

Total Clouds (% Sky Obscured)

28
26
31
36
25
39
59
100
98
84
34
6
27
77
79
74
79
68
58
39
61
81
68
76

Low Clouds (% Sky Obscured)

28
26
31
33
22
24
21
5
1
1
1
1
23
44
70
39
56
45
44
34
31
61
58
58

Medium Clouds (% Sky Obscured)

2
0
0
0
2
30
54
99
98
82
33
5
0
32
38
28
32
37
14
2
11
0
3
0

High Clouds (% Sky Obscured)

1
0
0
6
5
29
28
97
30
30
0
0
0
0
0
0
0
1
1
1
7
15
6
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

40
43
47
49
51
52
53
52
51
48
47
47
50
51
53
52
54
54
49
43
41
40
40
39

Pressure (mb)

1012
1013
1013
1013
1014
1014
1013
1013
1013
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1011
1010
1009
1008
1007

Ozone (du)

425
421
409
406
395
380
370
367
365
370
375
383
385
376
371
362
353
353
352
350
349
346
340
341

Wednesday 31

Waxing Gibbous 92%

14:50

05:48

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 OK
08 Bad
09 Bad
10 OK
11 Bad
12 OK
13 OK
14 OK

Sun - Rise: 07:27, Set: 16:54, Transit: 12:11. Moon - Rise: 14:50, Set: 05:48. Civil Dark: 17:24 - 06:57. Nautical Dark: 17:58 - 06:24. Astro Dark: 18:30 - 05:51

Total Clouds (% Sky Obscured)

69
71
74
78
82
85
82
80
74
67
78
75
98
89
66
65
42
46
57
43
50
40
26
21

Low Clouds (% Sky Obscured)

65
63
62
61
66
71
77
64
52
40
57
75
93
65
38
15
36
46
57
43
30
0
7
15

Medium Clouds (% Sky Obscured)

4
7
14
54
51
49
15
22
45
59
36
34
33
38
43
48
31
16
4
1
11
15
10
5

High Clouds (% Sky Obscured)

20
15
10
10
10
10
5
12
15
1
0
0
0
1
3
4
5
4
4
11
38
3
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
0
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
4
11
9
9
13
15
15
14
9
9
7
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-8
-6
-5
-6
-6
-6
-6
-6
-6
-3
-8
-7
-6
-7
-8
-9
-11
-13
-15
-16
-15
-16
-17
-17

Relative Humidity (%)

42
51
56
56
57
60
61
63
66
86
59
66
75
67
65
66
61
51
42
40
40
37
31
31

Pressure (mb)

1007
1007
1007
1007
1008
1008
1007
1007
1007
1007
1008
1008
1009
1009
1010
1012
1013
1014
1015
1015
1015
1014
1014
1014

Ozone (du)

342
342
338
338
336
332
333
336
339
348
349
349
347
342
343
347
344
343
345
350
351
353
353
351

Thursday 1

Waxing Gibbous 98%

No Rise

06:59

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

Sun - Rise: 07:27, Set: 16:55, Transit: 12:12. Moon - Rise: No Rise, Set: 06:59. Civil Dark: 17:25 - 06:57. Nautical Dark: 17:59 - 06:24. Astro Dark: 18:31 - 05:51

Total Clouds (% Sky Obscured)

34
27
24
26
32
43
49
59
58
48
36
33
30
40
46
57
70
84
99
100
100
100
99
99

Low Clouds (% Sky Obscured)

22
15
7
0
0
0
5
5
5
5
5
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

3
9
24
26
32
43
47
25
24
12
12
4
0
2
4
5
21
36
46
61
80
95
63
32

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
6
11
17
26
36
45
45
35
20
1
21

ISS Passover

Visibility (miles)

9
9
9
6
4
3
9
9
9
9
9
9
9
9
1
1
3
5
7
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
8
9
10
2
0
0
0
0
0
0
13
16
2
6
5
0
4
5
6
4
1

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-7
-8
-7
-7
-8
-8
-7
-7
-7
-8
-8
-9
-8
-9
-10
-9
-9
-9
-9
-8
-8
-7
-8
-5

Dew Point (°C)

-16
-16
-14
-14
-12
-11
-11
-11
-11
-11
-10
-10
-10
-9
-8
-8
-8
-8
-9
-9
-9
-10
-11
-9

Relative Humidity (%)

33
35
40
43
49
56
58
58
57
60
62
66
68
70
77
82
80
76
70
65
59
54
49
51

Pressure (mb)

1014
1013
1014
1014
1015
1015
1015
1015
1015
1015
1014
1015
1014
1014
1014
1015
1015
1015
1016
1016
1015
1014
1013
1013

Ozone (du)

350
350
349
350
355
357
359
359
361
362
363
353
344
339
335
335
333
334
335
335
331
328
324
322

Friday 2

Waxing Gibbous 100%

15:57

07:58

15 Bad
16 Bad
17 Bad
18 OK
19 OK
20 OK
21 OK
22 OK
23 Good
00 OK
01 OK
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 OK

Sun - Rise: 07:27, Set: 16:56, Transit: 12:12. Moon - Rise: 15:57, Set: 07:58. Civil Dark: 17:26 - 06:57. Nautical Dark: 17:59 - 06:24. Astro Dark: 18:32 - 05:51

Total Clouds (% Sky Obscured)

99
73
50
31
28
25
21
19
17
27
39
55
61
73
86
100
100
100
100
100
100
90
52
43

Low 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

Medium Clouds (% Sky Obscured)

0
5
7
10
16
21
21
16
17
27
39
40
44
47
43
37
25
12
0
0
0
0
1
1

High Clouds (% Sky Obscured)

32
32
18
4
4
4
4
2
1
0
11
21
32
47
66
85
90
100
100
100
100
90
52
43

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-5
-5
-5
-5
-5
-6
-6
-6
-6
-6
-7
-8
-8
-9
-9
-9
-10
-10
-10
-10
-10
-9
-9
-7

Dew Point (°C)

-9
-8
-8
-8
-8
-9
-10
-11
-12
-13
-13
-14
-15
-16
-17
-18
-19
-19
-19
-20
-19
-18
-17
-16

Relative Humidity (%)

53
55
60
63
67
64
60
58
55
53
51
49
45
42
40
38
37
34
31
28
28
28
29
32

Pressure (mb)

1012
1012
1013
1013
1013
1013
1014
1014
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1015
1015
1015
1015
1014
1015

Ozone (du)

320
318
316
314
312
312
313
313
312
311
310
313
315
318
319
320
321
321
321
321
321
321
321
322

Saturday 3

Full Moon 99%

17:12

08:44

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

Sun - Rise: 07:27, Set: 16:57, Transit: 12:12. Moon - Rise: 17:12, Set: 08:44. Civil Dark: 17:27 - 06:57. Nautical Dark: 18:00 - 06:24. Astro Dark: 18:33 - 05:51

Total Clouds (% Sky Obscured)

20
36
60
85
89
93
96
90
85
75
48
18
1
1
1
1
2
3
3
19
25
25

Low Clouds (% Sky Obscured)

0
0
0
0
1
2
2
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
1
1
7
32
57
74
62
56
53
35
18
0
1
1
1
2
1
0
3
3
5

High Clouds (% Sky Obscured)

20
36
60
85
69
42
15
5
0
0
0
0
0
0
0
0
1
1
1
9
14
25

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

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

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

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

Wind Speed/Direction (mph)

9
8
8
7
7
7
7
7
7
7
7
7
6
5
6
6
6
6
6
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-15
-14
-14
-14
-13
-13
-13
-13
-13
-13
-13
-13
-13
-12
-12
-12
-13
-13
-13
-14
-14
-14

Relative Humidity (%)

35
39
42
45
49
49
51
51
52
52
53
55
57
61
61
61
59
54
49
44
41
38

Pressure (mb)

1015
1015
1016
1016
1017
1018
1018
1018
1019
1019
1019
1020
1020
1021
1021
1022
1022
1023
1023
1024
1023
1023

Ozone (du)

323
324
324
324
325
326
327
329
330
332
333
332
332
331
329
326
324
323
322
321
319
317

Forecast for Marriottsville, Howard, United States of America (39.35,-76.90)

Generated: 28/12/25 15:46:13. Forecast: 28/12/25 to 03/01/26. Timezone: UTC-5.00