Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 8

Waning Gibbous 80%

19:37

11:38

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

Sun - Rise: 06:45, Set: 16:58, Transit: 11:51. Moon - Rise: 19:37, Set: 11:38. Civil Dark: 17:26 - 06:17. Nautical Dark: 17:58 - 05:45. Astro Dark: 18:29 - 05:13

Total Clouds (% Sky Obscured)

26
22
12
100
68
93
98
80
55
43
44
19
26
17
36
48
85
98
98
100
100
99
98
100

Low Clouds (% Sky Obscured)

17
1
3
8
15
10
17
19
21
20
15
6
5
0
5
15
51
82
88
73
96
97
88
74

Medium Clouds (% Sky Obscured)

0
0
0
12
68
93
70
58
26
20
17
10
16
9
12
22
75
77
38
17
34
84
40
42

High Clouds (% Sky Obscured)

0
5
12
100
33
46
51
27
0
0
0
0
0
0
9
48
35
70
74
91
79
84
92
99

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
9
6
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
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
6
26
49
55
39
11
3
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)

7
8
6
1
3
3
4
4
4
4
4
4
4
4
4
4
4
4
4
5
6
6
8
8

Chance of Frost

Temperature (°C)

20
19
19
18
17
15
14
14
13
13
13
12
12
11
10
10
10
10
11
12
13
13
15
17

Feels Like (°C)

19
18
18
17
15
13
11
12
12
13
12
12
11
10
11
10
11
10
10
11
12
12
14
16

Dew Point (°C)

8
7
7
8
8
6
5
7
7
7
7
8
8
8
8
8
9
9
10
11
11
11
13
13

Relative Humidity (%)

47
45
45
52
56
55
57
63
66
68
69
73
77
83
87
88
90
90
90
90
89
87
85
79

Pressure (mb)

1010
1009
1010
1010
1010
1011
1011
1012
1012
1012
1012
1011
1011
1011
1011
1010
1010
1009
1009
1009
1009
1008
1007
1006

Ozone (du)

284
280
279
278
279
279
280
282
284
282
280
280
279
279
278
277
278
277
277
277
277
277
277
275

Sunday 9

Waning Gibbous 69%

20:49

12:22

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 Good
08 OK
09 OK
10 Bad
11 Bad
12 Bad

Sun - Rise: 06:46, Set: 16:57, Transit: 11:51. Moon - Rise: 20:49, Set: 12:22. Civil Dark: 17:25 - 06:18. Nautical Dark: 17:57 - 05:46. Astro Dark: 18:29 - 05:14

Total Clouds (% Sky Obscured)

100
97
96
91
90
85
96
95
93
99
99
86
61
63
59
50
55
60
17
16
17
47
76
99

Low Clouds (% Sky Obscured)

20
19
24
86
84
79
59
21
32
29
19
24
30
18
14
5
5
5
3
7
12
38
62
73

Medium Clouds (% Sky Obscured)

65
15
49
19
60
26
42
85
93
99
98
80
50
37
3
2
2
30
0
0
4
13
20
60

High Clouds (% Sky Obscured)

100
89
85
56
40
37
2
4
0
27
3
0
4
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
4
2
2
9
4
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
Very Light Rain
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

23
48
23
14
20
7
1
51
72
80
69
66
30
20
2
0
0
0
0
0
0
0
0
2

Precipitation Amount (mm)

0
0.2
0
0
0
0
0
0.3
0.4
0.5
0.3
0.4
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
19
18
18
17
16
16
14
13
12
11
10
9
8
7
6
5
5
4
4
5
7
8
8

Feels Like (°C)

17
16
16
17
13
13
13
10
11
10
9
7
7
4
2
1
1
0
-1
1
1
3
3
4

Dew Point (°C)

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

Relative Humidity (%)

66
57
57
61
61
71
69
69
79
86
88
91
93
88
88
83
79
79
82
80
72
65
59
53

Pressure (mb)

1005
1005
1005
1005
1006
1007
1007
1008
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1010
1010
1010
1010
1010
1009

Ozone (du)

276
276
275
275
276
275
272
272
275
278
279
281
281
283
288
293
297
302
303
309
313
319
323
323

Monday 10

Waning Gibbous 59%

22:02

12:57

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
07 Bad
08 OK
09 OK
10 Good
11 Good
12 Good

Sun - Rise: 06:48, Set: 16:56, Transit: 11:51. Moon - Rise: 22:02, Set: 12:57. Civil Dark: 17:24 - 06:19. Nautical Dark: 17:56 - 05:47. Astro Dark: 18:28 - 05:15

Total Clouds (% Sky Obscured)

91
88
82
81
85
79
74
81
84
82
100
100
100
100
100
95
82
39
47
41
18
8
5
4

Low Clouds (% Sky Obscured)

78
75
71
72
69
58
56
58
64
55
84
74
46
35
35
47
77
26
42
35
12
3
1
0

Medium Clouds (% Sky Obscured)

46
43
49
66
78
79
74
78
82
71
85
78
100
100
100
94
69
27
38
41
18
8
2
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
4
0
0
0
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
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

9
10
7
16
11
10
15
21
29
33
33
36
40
49
27
4
1
1
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
12
12
11
12
11
12
12
11
11
10
10
9
10
10
9
10
10
10
12
13
14
16
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

48
49
52
51
55
55
57
60
63
66
70
77
91
91
89
71
65
63
72
67
61
56
51
45

Pressure (mb)

1008
1008
1008
1009
1009
1010
1010
1011
1011
1011
1010
1010
1010
1011
1011
1011
1012
1013
1014
1014
1015
1015
1015
1015

Ozone (du)

327
327
329
329
330
333
339
344
349
356
366
378
380
381
383
384
386
385
381
382
382
380
378
369

Tuesday 11

Waning Gibbous 48%

23:13

12:57

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

Sun - Rise: 06:49, Set: 16:55, Transit: 11:51. Moon - Rise: 23:13, Set: 12:57. Civil Dark: 17:23 - 06:20. Nautical Dark: 17:56 - 05:48. Astro Dark: 18:27 - 05:16

Total Clouds (% Sky Obscured)

7
15
22
17
18
10
13
12
30
50
68
71
86
84
84
72
62
47
53
58
89
94
91
86

Low Clouds (% Sky Obscured)

7
14
20
16
13
9
6
3
0
0
5
5
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

1
3
4
3
14
2
8
2
19
36
57
57
76
77
75
59
41
18
8
3
0
30
54
64

High Clouds (% Sky Obscured)

0
0
0
1
1
2
3
12
30
44
0
24
70
70
0
54
62
47
53
30
54
66
41
35

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
6
8
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
2
16
18
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

43
42
43
44
49
53
56
58
58
54
57
67
64
52
46
45
43
45
47
47
44
41
41
41

Pressure (mb)

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

Ozone (du)

364
360
358
352
348
344
343
342
340
335
330
324
318
317
319
316
314
314
314
317
317
322
329
339

Wednesday 12

Third Quarter 37%

00:20

13:25

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

Sun - Rise: 06:50, Set: 16:54, Transit: 11:52. Moon - Rise: 00:20, Set: 13:25. Civil Dark: 17:23 - 06:21. Nautical Dark: 17:55 - 05:49. Astro Dark: 18:27 - 05:17

Total Clouds (% Sky Obscured)

84
72
55
68
66
56
42
28
28
30
5
25
41
37
26
20
15
9
12
17
20
45
70
93

Low Clouds (% Sky Obscured)

0
0
4
13
22
30
21
9
0
0
0
0
0
0
0
0
0
0
4
11
18
43
68
92

Medium Clouds (% Sky Obscured)

53
72
40
29
17
13
6
1
0
0
0
0
1
2
3
2
1
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

20
10
0
0
0
2
0
0
0
0
0
0
0
1
1
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
16
22
25
23
19
16
10
11
10
7
6
5
0
3
3
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)

10
10
10
9
9
9
8
8
7
8
7
8
8
8
8
8
8
7
8
9
11
13
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

41
44
46
50
51
54
59
64
71
71
77
77
77
79
82
85
83
79
77
69
62
56
55
53

Pressure (mb)

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

Ozone (du)

345
343
343
342
338
342
344
338
335
333
330
325
323
317
310
304
308
311
315
312
309
306
304
301

Thursday 13

Waning Crescent 27%

01:24

13:48

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

Sun - Rise: 06:51, Set: 16:53, Transit: 11:52. Moon - Rise: 01:24, Set: 13:48. Civil Dark: 17:22 - 06:22. Nautical Dark: 17:54 - 05:50. Astro Dark: 18:26 - 05:18

Total Clouds (% Sky Obscured)

76
45
20
12
6
0
0
0
0
0
0
0
29
54
73
60
72
88
94
94
95
95
95
95

Low Clouds (% Sky Obscured)

67
28
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
13
43
68
87
78
74
70

Medium Clouds (% Sky Obscured)

3
5
8
5
3
0
0
0
0
0
0
0
0
0
0
8
17
25
50
75
90
85
85
85

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
28
50
53
57
72
87
79
74
55
5
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 (%)

4
4
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

53
51
50
50
53
57
62
64
68
73
73
76
77
76
73
72
67
63
61
55
49
45
42
39

Pressure (mb)

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

Ozone (du)

298
297
295
293
293
292
292
292
292
292
292
291
291
290
289
288
290
292
294
296
297
299
301
304

Friday 14

Waning Crescent 19%

02:25

14:10

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 Good
04 OK
05 OK
06 Bad

Sun - Rise: 06:52, Set: 16:52, Transit: 11:52. Moon - Rise: 02:25, Set: 14:10. Civil Dark: 17:21 - 06:23. Nautical Dark: 17:54 - 05:51. Astro Dark: 18:25 - 05:19

Total Clouds (% Sky Obscured)

92
92
96
96
93
91
89
87
86
81
60
38
23
13
8
25
42
58

Low Clouds (% Sky Obscured)

48
37
25
18
4
0
0
0
0
21
41
38
23
13
8
25
38
35

Medium Clouds (% Sky Obscured)

67
50
32
32
28
23
23
26
27
36
45
36
23
13
8
19
17
8

High Clouds (% Sky Obscured)

25
50
76
77
81
80
61
53
51
30
13
1
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

Fog (%)

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
5
8
8
8
9
8
6
2
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

36
38
40
42
42
44
44
48
53
60
62
66
70
72
76
80
80
82

Pressure (mb)

1019
1019
1018
1017
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

307
307
307
307
307
308
309
309
310
310
311
312
313
313
313
314
313
312

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

Generated: 08/11/25 13:22:04. Forecast: 08/11/25 to 14/11/25. Timezone: UTC-5.00