Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 4

Waning Crescent 14%

02:55

14:59

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
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 06:41, Set: 17:01, Transit: 11:51. Moon - Rise: 02:55, Set: 14:59. Civil Dark: 17:29 - 06:13. Nautical Dark: 18:02 - 05:41. Astro Dark: 18:33 - 05:09

Total Clouds (% Sky Obscured)

45
70
80
100
98
100
100
100
100
100
100
100
100
98
98
97
97
98
88
56
63
69
44
48

Low Clouds (% Sky Obscured)

6
1
1
4
12
24
28
40
73
89
52
87
92
79
83
96
94
97
81
56
54
58
34
27

Medium Clouds (% Sky Obscured)

25
46
52
79
83
84
98
87
95
98
88
100
59
59
51
61
48
30
36
7
23
7
0
0

High Clouds (% Sky Obscured)

45
70
80
100
65
96
100
100
100
100
100
100
100
86
62
1
0
0
0
0
2
1
2
14

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
Light Rain
Light Rain
Moderate Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
2
9
38
95
95
95
95
86
55
32
20
4
10
27
21
37
36
24
30

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
1
0.4
2.6
1.5
0.3
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
16
16
17
17
17
17
17
17
18
18
18
18
18
18
19
20
20
21
21
22
23
22
21

Feels Like (°C)

15
15
14
15
16
16
17
16
17
17
17
16
17
17
18
18
19
19
21
21
21
23
23
22

Dew Point (°C)

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

Relative Humidity (%)

63
73
78
79
82
87
92
89
90
92
93
92
92
92
90
89
85
86
82
84
74
71
76
84

Pressure (mb)

1016
1016
1016
1016
1015
1015
1015
1014
1014
1014
1013
1013
1013
1013
1014
1014
1013
1013
1013
1012
1011
1011
1011
1011

Ozone (du)

269
268
269
271
271
270
270
270
269
269
269
270
271
273
276
277
276
276
275
275
275
276
276
276

Thursday 5

Waning Crescent 7%

04:00

15:23

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 Bad
13 Bad
14 Bad
15 Bad
16 Good
17 Good

Sun - Rise: 06:42, Set: 17:00, Transit: 11:51. Moon - Rise: 04:00, Set: 15:23. Civil Dark: 17:28 - 06:14. Nautical Dark: 18:01 - 05:42. Astro Dark: 18:32 - 05:10

Total Clouds (% Sky Obscured)

51
71
96
92
97
100
100
100
100
100
93
88
97
98
97
98
98
100
100
100
100
76
9
0

Low Clouds (% Sky Obscured)

27
28
27
42
65
82
88
98
93
92
83
80
83
68
83
65
83
60
40
36
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
3
33
27
0
16
27
38
70
73
91
79
92
94
95
86
100
91
85
74
0
0

High Clouds (% Sky Obscured)

12
37
86
71
75
100
100
100
100
100
41
25
32
31
7
8
10
86
100
100
100
10
9
0

ISS Passover

Visibility (miles)

9
9
9
9
8
1
4
7
9
6
9
9
9
8
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
9
43
100
100
100
89
18
6
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 (%)

40
49
48
51
57
39
47
42
43
33
25
19
33
23
32
25
16
21
37
44
24
11
5
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)

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

Chance of Frost

Temperature (°C)

20
19
19
19
19
18
19
18
18
18
18
18
18
17
17
17
17
18
18
18
18
18
17
15

Feels Like (°C)

20
20
19
20
20
19
20
20
20
20
19
19
19
17
17
17
16
17
17
16
17
16
16
13

Dew Point (°C)

18
18
18
18
19
18
18
18
18
17
17
17
16
15
15
14
13
13
10
7
7
8
8
7

Relative Humidity (%)

88
91
93
95
98
98
98
98
96
93
93
95
92
90
86
83
74
74
57
47
47
51
54
57

Pressure (mb)

1012
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1012
1012
1012
1013
1012
1012
1012
1011
1011
1010
1010
1010
1010

Ozone (du)

276
276
276
274
273
275
276
276
276
276
277
279
280
279
280
281
280
281
282
282
285
288
289
293

Friday 6

Waning Crescent 3%

05:05

15:48

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

Sun - Rise: 06:43, Set: 16:59, Transit: 11:51. Moon - Rise: 05:05, Set: 15:48. Civil Dark: 17:27 - 06:15. Nautical Dark: 17:59 - 05:43. Astro Dark: 18:31 - 05:11

Total Clouds (% Sky Obscured)

60
69
55
53
58
58
62
87
63
30
30
30
35
8
28
51
56
73
76
62
72
80
72
65

Low Clouds (% Sky Obscured)

43
43
31
17
28
14
17
69
63
30
30
30
35
7
25
34
39
62
67
38
38
46
37
33

Medium Clouds (% Sky Obscured)

5
29
37
45
53
46
47
48
30
0
0
0
0
0
0
19
28
48
30
34
38
42
39
36

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
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
0
0
0
0
0
0
0
0
0
0
2
6
2
3
14
16
11
10
10

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
4
4
4
5
7
10
11
12
11
10
10
8
8
10
11
12
13
13
13
13
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
13
12
12
13
13
12
10
8
6
4
3
2
2
5
6
7
8
7
7
7
7
7
7

Dew Point (°C)

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

Relative Humidity (%)

59
62
62
63
64
66
68
70
71
65
58
56
55
60
60
54
50
47
46
45
46
54
59
71

Pressure (mb)

1010
1011
1011
1012
1012
1011
1012
1012
1012
1013
1013
1013
1013
1014
1014
1015
1014
1014
1013
1013
1013
1014
1014
1015

Ozone (du)

297
299
296
295
294
294
294
293
291
291
292
293
293
294
296
299
300
301
299
298
296
297
298
298

Saturday 7

Waning Crescent 1%

06:10

16:16

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

Sun - Rise: 06:44, Set: 16:58, Transit: 11:51. Moon - Rise: 06:10, Set: 16:16. Civil Dark: 17:26 - 06:16. Nautical Dark: 17:58 - 05:44. Astro Dark: 18:30 - 05:12

Total Clouds (% Sky Obscured)

66
58
53
76
56
77
76
40
50
45
40
32
10
5
1
0
0
1
3
1
2
1
18
17

Low Clouds (% Sky Obscured)

38
17
17
76
49
77
76
36
50
45
40
32
10
5
1
0
0
1
3
0
0
0
0
0

Medium Clouds (% Sky Obscured)

33
24
12
0
0
0
0
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
0
0
0
0
0
5
5

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 (%)

9
4
3
0
0
0
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)

12
12
11
11
11
12
13
13
13
13
12
12
12
11
12
12
12
12
12
12
11
10
9
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
72
73
80
76
80
72
73
82
77
74
74
71
72
67
66
61
54
54
51
51
52
57
61

Pressure (mb)

1015
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1018
1018
1019
1019
1020
1020
1019
1019
1018
1018
1018
1018
1018

Ozone (du)

300
301
301
302
302
303
303
303
303
303
301
299
298
298
296
297
297
296
295
295
295
295
295
293

Sunday 8

Waning Crescent 0%

07:15

16:49

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

Sun - Rise: 06:45, Set: 16:57, Transit: 11:51. Moon - Rise: 07:15, Set: 16:49. Civil Dark: 17:25 - 06:17. Nautical Dark: 17:57 - 05:45. Astro Dark: 18:30 - 05:13

Total Clouds (% Sky Obscured)

27
26
26
30
40
50
60
73
86
99
86
73
55
54
42
31
24
20
17
23
25
18
19
4

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
4
8
12
11
9
8
5
3
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
4
12
43
50
60
72
63
31
13
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

17
26
26
30
40
50
60
73
86
98
86
73
55
54
42
31
24
20
17
23
25
18
19
4

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
5
5
5
5
5
6
5
5
5
5
4
3
3
4
5
6
7
7
8
13
13
12
12

Dew Point (°C)

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

Relative Humidity (%)

66
68
70
73
75
74
73
71
71
75
74
75
74
71
63
54
47
43
39
35
37
41
44
46

Pressure (mb)

1019
1019
1019
1019
1020
1020
1020
1020
1020
1020
1020
1021
1021
1022
1022
1022
1022
1021
1021
1020
1020
1020
1019
1019

Ozone (du)

296
297
299
300
299
297
296
293
292
291
291
290
290
289
289
289
289
290
291
292
290
287
284
284

Monday 9

New Moon 2%

08:18

17:28

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

Sun - Rise: 06:46, Set: 16:56, Transit: 11:51. Moon - Rise: 08:18, Set: 17:28. Civil Dark: 17:24 - 06:18. Nautical Dark: 17:57 - 05:46. Astro Dark: 18:29 - 05:14

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
23
46
69
62
55
48
65
83
100
100
100
100
100
100

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
0
0
0
0
0
0
0
0
0
23
37
41
47
54
48
49
41
33
46
65
85
84
82

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
23
46
69
62
55
33
52
78
100
99
98
97
98
99

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)

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

Chance of Frost

Temperature (°C)

11
10
9
8
7
7
7
7
6
6
6
6
6
6
9
12
14
15
17
18
18
17
17
15

Feels Like (°C)

11
10
6
6
5
6
6
5
3
3
3
3
3
4
6
7
8
9
10
11
16
15
16
15

Dew Point (°C)

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

Relative Humidity (%)

47
49
49
49
49
50
50
51
50
49
48
47
46
46
44
42
41
42
42
43
46
50
54
57

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1017
1015
1014
1014
1014
1013
1013

Ozone (du)

283
282
282
282
281
281
281
281
281
281
281
283
284
285
284
283
282
282
282
283
283
283
283
281

Tuesday 10

Waxing Crescent 6%

09:17

No Set

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

Sun - Rise: 06:47, Set: 16:55, Transit: 11:51. Moon - Rise: 09:17, Set: No Set. Civil Dark: 17:24 - 06:19. Nautical Dark: 17:56 - 05:47. Astro Dark: 18:28 - 05:15

Total Clouds (% Sky Obscured)

100
100
99
99
66
38
10
11
12
10
7
3
0
0
0
0
7
22
28

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

71
52
38
26
19
9
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
91
83
76
63
38
10
11
12
10
7
3
0
0
0
0
4
3
5

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
12
12
11
11
10
9
8
7
6
5
5
5
4
7
10
13
14
15

Feels Like (°C)

14
13
10
10
11
10
9
8
6
6
5
4
5
4
5
7
9
9
10

Dew Point (°C)

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

Relative Humidity (%)

61
65
67
72
76
76
77
79
79
79
79
76
75
73
62
53
45
41
37

Pressure (mb)

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

Ozone (du)

280
279
280
280
281
281
281
282
283
285
287
288
289
290
290
291
291
291
292

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

Generated: 04/11/26 17:39:05. Forecast: 04/11/26 to 10/11/26. Timezone: UTC-5.00