Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 3

Waxing Gibbous 99%

15:21

05:37

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

Sun - Rise: 07:11, Set: 16:44, Transit: 11:57. Moon - Rise: 15:21, Set: 05:37. Civil Dark: 17:14 - 06:41. Nautical Dark: 17:47 - 06:08. Astro Dark: 18:19 - 05:35

Total Clouds (% Sky Obscured)

34
25
21
5
6
7
4
4
5
4
19
7
29
12
3
3
2
31
41
29
45
32
85
100

Low Clouds (% Sky Obscured)

2
2
2
2
3
4
3
2
4
3
3
3
3
8
3
3
2
2
2
0
2
2
2
2

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
1
0
4

High Clouds (% Sky Obscured)

0
1
19
1
1
1
1
1
0
1
16
3
18
2
0
0
0
31
41
29
45
32
85
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
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
7
6
7
6
7
8
7
7
6
5
6
5
3
2
2
3
4
4
4
4
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
84
81
83
86
78
71
68
68
69
71
75
82
88
88
84
84
83
81
78
80
81
84
83

Pressure (mb)

1017
1017
1018
1019
1020
1021
1021
1021
1021
1020
1019
1019
1020
1020
1020
1021
1021
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

328
326
326
325
323
320
319
321
324
325
326
326
324
326
326
328
330
327
326
324
327
325
327
329

Thursday 4

Full Moon 100%

16:11

06:59

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

Sun - Rise: 07:12, Set: 16:44, Transit: 11:58. Moon - Rise: 16:11, Set: 06:59. Civil Dark: 17:13 - 06:42. Nautical Dark: 17:47 - 06:09. Astro Dark: 18:19 - 05:36

Total Clouds (% Sky Obscured)

88
68
98
78
86
98
100
94
100
100
100
100
100
45
50
55
6
2
1
31
22
82
100
100

Low Clouds (% Sky Obscured)

5
5
5
5
58
52
52
54
60
39
24
26
18
1
1
1
0
0
0
0
0
0
0
1

Medium Clouds (% Sky Obscured)

17
11
12
78
86
98
100
93
88
55
18
0
0
0
0
0
0
0
0
4
22
82
85
100

High Clouds (% Sky Obscured)

78
67
96
44
48
64
40
82
100
100
100
100
100
45
50
55
5
0
0
17
1
49
99
85

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)

3
3
3
4
5
6
9
12
14
14
13
13
12
10
9
8
9
8
6
5
5
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-3
-4
-4
-4
-4
-3
-2
-2
-1
0
1
-1
-1
-2
-3
-4
-5
-6
-6
-7
-7
-8
-9
-9

Relative Humidity (%)

81
80
78
77
75
70
68
68
68
71
72
71
71
74
74
77
67
70
74
75
75
73
70
70

Pressure (mb)

1020
1019
1019
1020
1020
1020
1021
1021
1021
1021
1021
1022
1023
1024
1025
1026
1027
1027
1028
1029
1028
1028
1028
1028

Ozone (du)

334
338
338
340
341
341
339
342
344
344
344
345
342
339
337
336
338
339
338
338
338
335
338
335

Friday 5

Waning Gibbous 97%

17:13

08:15

04 Bad
05 Bad
06 Bad
07 Bad
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

Sun - Rise: 07:13, Set: 16:44, Transit: 11:58. Moon - Rise: 17:13, Set: 08:15. Civil Dark: 17:13 - 06:43. Nautical Dark: 17:47 - 06:09. Astro Dark: 18:19 - 05:37

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
90
89
90
95
97
94
97
96
90
83
72

Low Clouds (% Sky Obscured)

0
0
37
69
74
91
90
93
88
87
82
81
75
46
46
54
63
65
49
41
39
39
48
60

Medium Clouds (% Sky Obscured)

99
82
62
62
67
84
94
100
100
100
100
98
85
75
72
49
70
77
54
30
49
83
68
50

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
10
5
5
10
15
15
10
15
5
12
10

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

Precipitation Probability (%)

0
0
1
2
17
34
47
47
45
34
31
24
25
18
6
1
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0.1
0.1
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-10
-11
-11
-12
-12
-12
-12
-12
-11
-9
-8
-7
-6
-4
-4
-3
-3
-3
-3
-3
-3
-3
-3
-3

Relative Humidity (%)

66
62
59
56
54
50
48
48
52
58
64
68
74
84
86
89
92
92
94
94
94
94
94
94

Pressure (mb)

1027
1027
1027
1027
1027
1027
1026
1025
1024
1022
1021
1020
1019
1019
1018
1018
1018
1018
1017
1017
1016
1016
1016
1016

Ozone (du)

331
333
333
331
327
323
320
315
311
308
307
305
304
303
302
302
303
304
304
303
303
302
300
299

Saturday 6

Waning Gibbous 92%

18:25

09:21

04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 OK
12 OK
13 OK
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

Sun - Rise: 07:14, Set: 16:44, Transit: 11:59. Moon - Rise: 18:25, Set: 09:21. Civil Dark: 17:13 - 06:44. Nautical Dark: 17:47 - 06:10. Astro Dark: 18:19 - 05:38

Total Clouds (% Sky Obscured)

68
63
63
55
54
55
54
45
41
39
34
33
63
81
97
98
99
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

68
63
63
55
54
47
43
38
34
29
23
18
39
63
84
77
76
75
75
76
77
84
91
98

Medium Clouds (% Sky Obscured)

28
0
0
0
0
0
0
0
0
0
0
0
10
20
29
43
54
72
78
84
85
87
79
79

High Clouds (% Sky Obscured)

5
0
0
0
5
10
15
15
35
39
34
5
56
77
81
93
96
100
100
100
100
85
73
58

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
2
2
1
5
6
5

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
91
92
91
89
80
71
69
66
63
62
63
71
73
75
74
80
79
80
82
86
88
88
86

Pressure (mb)

1015
1016
1016
1016
1017
1017
1017
1016
1016
1015
1015
1015
1015
1015
1016
1016
1016
1017
1016
1016
1017
1017
1017
1018

Ozone (du)

299
298
297
296
295
293
294
291
289
289
289
287
287
286
286
287
288
289
290
288
288
290
292
297

Sunday 7

Waning Gibbous 84%

19:42

10:13

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

Sun - Rise: 07:14, Set: 16:44, Transit: 11:59. Moon - Rise: 19:42, Set: 10:13. Civil Dark: 17:14 - 06:45. Nautical Dark: 17:47 - 06:11. Astro Dark: 18:20 - 05:39

Total Clouds (% Sky Obscured)

90
76
72
62
61
61
48
89
85
81
79
76
77
93
97
73
49
15
5
5
10
15
20
20

Low Clouds (% Sky Obscured)

88
76
68
62
61
61
48
68
72
64
57
47
32
16
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

53
23
0
13
27
40
29
40
15
25
38
55
68
82
96
64
32
10
5
5
5
5
5
5

High Clouds (% Sky Obscured)

55
26
61
0
0
0
0
2
0
4
8
14
10
5
0
5
11
15
5
5
10
15
20
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 (%)

3
2
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
2
3
4
9
9
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
88
88
88
84
72
63
60
59
59
59
62
67
74
77
78
77
73
70
70
70
68
68
68

Pressure (mb)

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

Ozone (du)

301
299
299
299
299
297
297
296
294
292
291
291
291
290
291
293
294
295
296
297
297
297
299
300

Monday 8

Waning Gibbous 81%

20:56

10:53

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

Sun - Rise: 07:15, Set: 16:44, Transit: 11:59. Moon - Rise: 20:56, Set: 10:53. Civil Dark: 17:14 - 06:45. Nautical Dark: 17:47 - 06:12. Astro Dark: 18:20 - 05:39

Total Clouds (% Sky Obscured)

20
40
70
70
75
75
75
75
55
40
20
15
23
33
44
39
34
29
39
49
54
36
34
14

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
9
31
38
35
20
15
8
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

20
40
50
45
45
55
70
55
30
20
20
15
19
29
44
39
34
29
39
33
10
7
4
0

High Clouds (% Sky Obscured)

20
40
55
40
35
35
30
15
15
5
5
5
15
15
15
8
0
0
0
0
0
27
34
14

ISS Passover

Visibility (miles)

9
9
9
9
8
7
6
7
8
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
2
0
8
10
5
12
14
13
7
4
0
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-6
-6
-6
-7
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-9
-9
-10
-10
-10
-11
-10
-10
-9
-9

Dew Point (°C)

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

Relative Humidity (%)

68
66
64
61
57
52
49
47
47
46
48
49
50
51
53
54
54
54
55
55
56
56
57
58

Pressure (mb)

1025
1025
1026
1026
1027
1027
1028
1027
1026
1026
1026
1025
1025
1025
1026
1026
1026
1025
1025
1025
1024
1024
1023
1023

Ozone (du)

302
303
305
307
309
311
313
312
312
311
312
314
315
317
320
323
324
325
326
327
328
328
328
328

Tuesday 9

Waning Gibbous 75%

22:07

11:25

04 Good
05 Good
06 Good
07 OK
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

Sun - Rise: 07:16, Set: 16:44, Transit: 12:00. Moon - Rise: 22:07, Set: 11:25. Civil Dark: 17:14 - 06:46. Nautical Dark: 17:47 - 06:13. Astro Dark: 18:20 - 05:40

Total Clouds (% Sky Obscured)

7
10
13
42
71
100
100
100
100
97
96
98
96
93
90
85
80
78
76
68
56

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
18
36
63
77
86
87
85
83
81
78
74
71
68
65
56

Medium Clouds (% Sky Obscured)

0
0
5
35
69
96
97
98
98
96
93
91
86
88
88
77
66
55
39
20
0

High Clouds (% Sky Obscured)

7
10
13
42
71
100
99
100
100
96
92
89
59
30
5
12
22
23
17
9
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

Fog (%)

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
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
2
6
8
33
47
57
50
37
14
10
9
10
10
12
5

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-14
-15
-15
-15
-16
-16
-17
-18
-18
-18
-17
-15
-12
-9
-6
-2
-2
-2
-1
-1
-1

Relative Humidity (%)

58
56
54
52
45
38
33
29
25
23
27
32
39
51
67
87
87
87
89
91
92

Pressure (mb)

1022
1022
1021
1021
1021
1020
1020
1019
1017
1016
1015
1014
1013
1012
1012
1011
1011
1011
1011
1011
1011

Ozone (du)

327
327
327
328
328
328
328
329
330
331
336
340
345
346
347
348
348
348
348
345
341

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

Generated: 03/12/25 04:01:24. Forecast: 03/12/25 to 09/12/25. Timezone: UTC-5.00