Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 7

Waning Gibbous 84%

19:43

10:15

09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 OK
16 OK
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: 07:17, Set: 16:45, Transit: 12:01. Moon - Rise: 19:43, Set: 10:15. Civil Dark: 17:15 - 06:47. Nautical Dark: 17:49 - 06:14. Astro Dark: 18:21 - 05:41

Total Clouds (% Sky Obscured)

65
70
74
74
97
59
41
23
26
24
53
45
61
69
78
83
87
88
97
93
100
100
100
100

Low Clouds (% Sky Obscured)

36
48
26
11
7
22
10
3
8
12
29
28
24
10
2
5
10
21
21
40
42
33
48
47

Medium Clouds (% Sky Obscured)

65
70
74
74
96
59
32
17
19
17
27
13
5
11
12
21
32
22
39
93
82
90
100
100

High Clouds (% Sky Obscured)

63
55
72
73
15
1
0
0
0
0
0
0
61
48
60
61
47
44
87
51
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 (%)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
70
68
67
67
68
71
82
89
91
93
93
93
91
87
86
86
84
78
75
72
67
68
68

Pressure (mb)

1021
1021
1021
1020
1019
1019
1018
1018
1019
1019
1019
1020
1020
1020
1020
1021
1021
1021
1022
1022
1023
1024
1024
1025

Ozone (du)

301
302
301
302
302
302
303
304
303
303
302
303
306
309
313
314
313
316
320
319
320
319
316
319

Monday 8

Waning Gibbous 75%

20:58

10:55

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

Sun - Rise: 07:18, Set: 16:46, Transit: 12:01. Moon - Rise: 20:58, Set: 10:55. Civil Dark: 17:15 - 06:48. Nautical Dark: 17:49 - 06:14. Astro Dark: 18:21 - 05:42

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
92
75
55
60
47
6
12
18
24
20
40
42
73
83
84

Low Clouds (% Sky Obscured)

42
33
21
16
4
1
1
0
0
0
1
1
1
1
0
12
18
24
20
40
27
49
15
32

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
92
75
55
60
47
6
1
2
0
0
0
20
31
45
45

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
42
40
40
40
40
28
18
2
0
0
0
0
0
7
5
1
16

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-8
-11
-14
-14
-15
-15
-15
-14
-12
-12
-12
-13
-13
-14
-13
-14
-15
-15
-16
-16
-16
-16
-16
-16

Relative Humidity (%)

65
54
41
38
36
35
36
39
45
48
49
48
50
50
55
55
52
50
47
46
45
45
45
44

Pressure (mb)

1026
1026
1026
1026
1025
1025
1025
1026
1026
1027
1027
1027
1027
1027
1026
1026
1025
1025
1025
1024
1024
1025
1024
1024

Ozone (du)

321
322
324
324
324
320
316
317
321
321
318
318
320
324
332
340
341
338
339
335
334
336
338
343

Tuesday 9

Waning Gibbous 65%

22:09

11:27

09 Bad
10 OK
11 OK
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: 07:19, Set: 16:46, Transit: 12:02. Moon - Rise: 22:09, Set: 11:27. Civil Dark: 17:16 - 06:49. Nautical Dark: 17:49 - 06:15. Astro Dark: 18:22 - 05:42

Total Clouds (% Sky Obscured)

56
42
41
56
68
82
78
64
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

29
8
0
30
33
1
8
1
2
25
48
54
61
67
62
65
67
69
71
76
71
68
64
59

Medium Clouds (% Sky Obscured)

49
42
41
29
63
81
74
16
1
66
67
100
100
20
22
99
99
100
100
100
100
99
100
100

High Clouds (% Sky Obscured)

35
20
35
35
2
0
0
48
100
100
100
65
100
100
85
64
76
88
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
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
22
30
34
25
14

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-16
-16
-15
-14
-12
-10
-8
-7
-6
-5
-4
-3
-3
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2

Relative Humidity (%)

39
36
34
36
40
44
50
57
66
74
80
86
89
92
94
94
94
96
94
92
87
86
83
78

Pressure (mb)

1024
1023
1022
1020
1018
1017
1016
1016
1015
1014
1014
1014
1014
1013
1013
1012
1011
1011
1010
1009
1008
1007
1006
1006

Ozone (du)

356
365
374
383
399
393
380
369
359
355
353
352
351
351
347
342
337
335
333
335
337
339
340
338

Wednesday 10

Waning Gibbous 54%

23:16

11:53

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: 07:19, Set: 16:46, Transit: 12:02. Moon - Rise: 23:16, Set: 11:53. Civil Dark: 17:16 - 06:49. Nautical Dark: 17:49 - 06:16. Astro Dark: 18:22 - 05:43

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
94
88
85
81
74
70
80
77
100
100
100
95
95
86
81
80
57

Low Clouds (% Sky Obscured)

55
41
27
13
31
50
70
60
52
41
38
29
28
41
40
47
61
74
88
67
46
25
33
41

Medium Clouds (% Sky Obscured)

100
98
96
95
92
90
88
85
79
73
49
48
0
25
54
85
87
94
95
91
73
65
72
57

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
85
73
60
70
74
70
42
49
100
100
100
84
77
27
15
7
3

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 (%)

2
3
3
1
11
21
41
23
19
2
6
8
10
15
7
6
0
0
0
1
2
1
2
2

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
72
69
69
68
67
67
78
79
83
85
88
91
91
82
89
85
76
81
83
83
86
87
86

Pressure (mb)

1005
1004
1003
1001
1000
1000
1000
1000
1001
1002
1003
1003
1004
1004
1005
1006
1007
1008
1009
1009
1010
1010
1011
1011

Ozone (du)

333
330
329
328
326
325
322
321
318
318
320
321
319
317
314
307
302
300
300
298
293
296
300
302

Thursday 11

Third Quarter 44%

00:19

12:15

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: 07:20, Set: 16:46, Transit: 12:03. Moon - Rise: 00:19, Set: 12:15. Civil Dark: 17:16 - 06:50. Nautical Dark: 17:49 - 06:16. Astro Dark: 18:22 - 05:44

Total Clouds (% Sky Obscured)

50
50
92
100
100
97
99
99
100
100
99
99
98
99
99
100
85
70
58
72
92
99
96
92

Low Clouds (% Sky Obscured)

47
42
40
36
49
62
75
70
64
59
63
68
73
59
46
32
33
34
35
25
15
5
3
2

Medium Clouds (% Sky Obscured)

50
50
71
100
98
96
95
96
98
100
87
76
67
47
24
10
8
6
3
21
26
22
19
7

High Clouds (% Sky Obscured)

3
17
65
100
40
31
76
82
92
100
97
94
92
83
70
51
30
16
0
20
40
60
65
70

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
8
8
5
3
0
0
0
0
3
6
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
Snow
Snow
Snow
Snow
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
18
25
28
24
19
13
25
21
17
40
53
62
58
51
40
28
16
3
5
3

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.2
0.2
0.1
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
67
60
57
55
53
52
60
64
67
67
69
70
73
80
89
98
98
98
100
96
91
88
83

Pressure (mb)

1012
1013
1012
1012
1011
1011
1011
1011
1011
1011
1012
1011
1011
1011
1011
1011
1011
1011
1012
1012
1013
1014
1014
1015

Ozone (du)

303
300
300
297
297
292
293
294
296
293
292
293
294
295
296
298
299
301
303
305
307
310
312
314

Friday 12

Waning Crescent 34%

01:20

12:36

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

Sun - Rise: 07:21, Set: 16:46, Transit: 12:03. Moon - Rise: 01:20, Set: 12:36. Civil Dark: 17:16 - 06:51. Nautical Dark: 17:50 - 06:17. Astro Dark: 18:22 - 05:45

Total Clouds (% Sky Obscured)

88
67
45
18
28
43
54
67
82
100
69
39
8
38
65
81
76
63
65
53
41
31
23
20

Low Clouds (% Sky Obscured)

0
26
29
9
16
43
38
18
21
25
19
14
8
17
27
36
35
36
43
31
21
6
8
10

Medium Clouds (% Sky Obscured)

0
0
0
0
1
3
5
36
68
100
67
33
0
17
23
10
5
0
0
0
0
5
5
10

High Clouds (% Sky Obscured)

65
47
23
0
8
16
24
44
62
80
53
30
0
33
65
81
76
63
65
53
29
6
4
1

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
72
69
65
63
64
64
65
69
73
77
79
79
81
79
79
78
81
84
87
82
79
75
66

Pressure (mb)

1016
1017
1017
1017
1017
1017
1017
1018
1018
1019
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1019
1020
1020

Ozone (du)

317
319
322
324
327
329
331
333
334
336
337
338
339
340
340
340
341
341
342
343
348
353
358
358

Saturday 13

Waning Crescent 25%

02:20

12:57

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

Sun - Rise: 07:22, Set: 16:46, Transit: 12:04. Moon - Rise: 02:20, Set: 12:57. Civil Dark: 17:16 - 06:51. Nautical Dark: 17:50 - 06:18. Astro Dark: 18:23 - 05:45

Total Clouds (% Sky Obscured)

13
40
69
93
92
88
84
78
72
68
49
29
16
21
32
36

Low Clouds (% Sky Obscured)

13
35
53
68
68
62
75
73
70
67
45
22
0
0
8
21

Medium Clouds (% Sky Obscured)

13
19
22
20
14
8
1
1
1
2
2
3
4
3
1
0

High Clouds (% Sky Obscured)

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

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
7
8
4
12
13
8
11
8
2
2
1
0
2
2
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-6
-7
-6
-6
-6
-7
-7
-7
-7
-7
-6
-10
-10
-10
-10
-10

Dew Point (°C)

-9
-10
-10
-10
-9
-10
-10
-11
-10
-10
-10
-10
-9
-9
-9
-10

Relative Humidity (%)

60
54
53
53
53
51
50
48
52
56
61
64
66
69
69
68

Pressure (mb)

1020
1021
1020
1019
1018
1019
1019
1019
1020
1021
1021
1022
1022
1022
1022
1023

Ozone (du)

358
358
359
360
360
368
375
382
383
383
384
382
381
380
380
380

Forecast for Urbana, Frederick, United States of America (39.33,-77.34)

Generated: 07/12/25 09:21:49. Forecast: 07/12/25 to 13/12/25. Timezone: UTC-5.00