Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 7

Waning Crescent 8%

03:36

18:12

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

Sun - Rise: 06:43, Set: 19:28, Transit: 13:04. Moon - Rise: 03:36, Set: 18:12. Civil Dark: 19:55 - 06:16. Nautical Dark: 20:27 - 05:44. Astro Dark: 21:00 - 05:11

Total Clouds (% Sky Obscured)

28
50
49
7
41
1
2
15
17
42
11
31
7
67
99
87
79
78
84
86
68
81
74
58

Low Clouds (% Sky Obscured)

10
8
5
0
0
0
1
11
9
8
5
1
0
1
1
6
8
9
11
8
6
3
0
0

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

28
50
13
7
40
1
0
0
5
38
3
28
7
67
98
80
68
57
57
64
47
67
71
47

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)

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

Chance of Frost

Temperature (°C)

25
22
21
19
19
18
18
17
17
17
17
16
16
18
20
22
24
25
27
27
28
28
28
28

Feels Like (°C)

26
22
20
20
19
19
20
20
19
18
18
17
17
19
21
22
23
25
26
27
28
29
29
29

Dew Point (°C)

14
12
11
11
11
12
13
13
12
12
12
12
13
13
15
15
14
14
14
14
14
14
14
16

Relative Humidity (%)

51
51
54
57
59
65
72
74
72
72
72
77
82
76
69
62
56
51
46
44
42
41
41
49

Pressure (mb)

1021
1022
1022
1023
1023
1023
1023
1024
1024
1024
1024
1024
1024
1025
1025
1025
1025
1025
1024
1023
1023
1022
1022
1023

Ozone (du)

311
310
313
315
313
311
310
310
310
309
308
308
309
309
309
309
309
307
303
303
303
302
301
301

Tuesday 8

Waning Crescent 3%

04:51

18:41

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

Sun - Rise: 06:44, Set: 19:26, Transit: 13:04. Moon - Rise: 04:51, Set: 18:41. Civil Dark: 19:53 - 06:17. Nautical Dark: 20:25 - 05:45. Astro Dark: 20:58 - 05:12

Total Clouds (% Sky Obscured)

69
65
40
94
76
72
66
67
61
61
38
63
87
97
65
66
65
88
77
66
68
11
86
99

Low Clouds (% Sky Obscured)

0
0
0
1
1
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
35
58

Medium Clouds (% Sky Obscured)

18
16
21
19
30
13
11
33
20
7
2
18
29
30
34
40
30
30
15
22
10
5
0
2

High Clouds (% Sky Obscured)

42
32
16
79
44
45
45
40
31
46
23
37
61
97
57
66
65
88
77
66
68
8
73
73

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)

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

Chance of Frost

Temperature (°C)

26
24
23
22
21
20
20
20
19
19
19
18
18
19
21
23
25
27
28
29
30
31
31
30

Feels Like (°C)

26
25
23
23
21
21
20
19
19
18
18
18
17
18
20
24
26
27
28
30
31
31
31
29

Dew Point (°C)

16
15
15
15
15
15
15
15
14
13
13
13
13
13
13
12
12
12
13
13
13
13
13
13

Relative Humidity (%)

54
57
60
65
68
71
75
74
72
70
70
72
72
68
58
50
44
39
38
36
34
34
34
36

Pressure (mb)

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

Ozone (du)

300
299
300
299
299
296
294
291
290
288
288
288
287
286
285
284
283
282
280
278
278
278
278
279

Wednesday 9

Waning Crescent 0%

06:04

19:06

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

Sun - Rise: 06:45, Set: 19:25, Transit: 13:04. Moon - Rise: 06:04, Set: 19:06. Civil Dark: 19:52 - 06:18. Nautical Dark: 20:24 - 05:46. Astro Dark: 20:56 - 05:13

Total Clouds (% Sky Obscured)

100
85
65
49
38
23
0
24
23
20
7
22
15
34
52
63
69
83
88
88
88
45
44
39

Low Clouds (% Sky Obscured)

56
36
11
1
0
0
0
0
0
0
0
0
0
29
41
25
38
64
73
61
27
27
26
13

Medium Clouds (% Sky Obscured)

28
31
26
23
28
23
0
22
19
18
7
16
11
30
34
55
46
71
73
74
75
45
40
36

High Clouds (% Sky Obscured)

70
67
51
41
19
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
5

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
1
4
13
14
22
39
17
4
6
3
21
49
94

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0.2
1.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

28
26
25
24
24
24
23
22
21
21
20
20
20
21
22
24
26
27
28
29
29
30
30
29

Feels Like (°C)

26
24
24
24
23
23
22
21
21
21
20
20
20
22
22
25
27
28
29
30
30
31
34
34

Dew Point (°C)

12
10
10
11
11
11
10
10
10
10
10
11
11
12
13
14
16
19
21
20
21
22
21
22

Relative Humidity (%)

36
35
38
44
45
44
44
46
48
50
52
55
56
59
54
52
54
59
65
59
60
64
58
65

Pressure (mb)

1017
1017
1017
1017
1017
1016
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1013
1012
1011
1011
1010

Ozone (du)

279
280
280
281
281
280
280
280
280
280
280
281
281
281
281
282
282
283
283
283
283
284
284
284

Thursday 10

New Moon 1%

07:13

19:06

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
18 Bad

Sun - Rise: 06:46, Set: 19:23, Transit: 13:03. Moon - Rise: 07:13, Set: 19:06. Civil Dark: 19:50 - 06:19. Nautical Dark: 20:22 - 05:47. Astro Dark: 20:55 - 05:14

Total Clouds (% Sky Obscured)

72
80
90
100
68
91
92
95
97
100
99
99
88
97
97
97
96
96
96
93
90
87
86
87

Low Clouds (% Sky Obscured)

25
42
51
51
41
66
78
73
70
63
63
52
41
41
44
43
53
53
50
53
63
67
66
62

Medium Clouds (% Sky Obscured)

70
80
87
94
49
58
84
90
94
100
65
65
77
56
38
32
32
35
35
34
32
24
23
20

High Clouds (% Sky Obscured)

0
19
39
63
53
38
25
34
54
66
80
66
15
60
74
85
82
79
78
76
77
76
59
43

ISS Passover

Visibility (miles)

9
3
3
3
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

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

Precipitation Probability (%)

95
95
95
94
63
78
89
72
73
73
76
79
82
66
47
7
12
12
12
15
15
9
15
13

Precipitation Amount (mm)

1.5
1.1
4.9
0.3
0
0.2
0.4
0.2
0.3
0.3
0.5
0.6
0.8
0.5
0.2
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

27
26
25
24
23
22
22
21
21
20
20
20
20
20
21
22
23
23
24
24
24
24
24
23

Feels Like (°C)

33
28
27
26
26
27
22
21
22
22
21
21
21
22
22
22
23
24
24
25
25
25
25
25

Dew Point (°C)

25
25
24
23
22
22
21
20
19
19
18
18
19
19
18
18
16
15
14
14
13
13
14
15

Relative Humidity (%)

87
94
95
97
95
95
94
94
92
89
88
88
92
89
83
74
65
59
55
51
50
51
52
59

Pressure (mb)

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

Ozone (du)

284
285
288
290
291
291
290
289
289
288
287
287
288
292
292
293
294
297
298
298
300
301
301
301

Friday 11

Waxing Crescent 3%

08:21

19:30

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
18 Bad

Sun - Rise: 06:46, Set: 19:21, Transit: 13:03. Moon - Rise: 08:21, Set: 19:30. Civil Dark: 19:48 - 06:20. Nautical Dark: 20:20 - 05:48. Astro Dark: 20:53 - 05:15

Total Clouds (% Sky Obscured)

88
87
84
79
80
75
71
67
64
63
70
73
80
82
84
89
81
72
64
65
66
69
59
48

Low Clouds (% Sky Obscured)

60
37
49
66
70
70
70
67
64
63
14
10
35
41
46
53
42
34
25
38
54
69
57
42

Medium Clouds (% Sky Obscured)

20
19
19
16
13
12
9
11
12
12
19
26
31
45
59
74
61
50
39
38
37
37
27
18

High Clouds (% Sky Obscured)

61
70
56
30
36
4
13
35
16
27
30
27
30
30
35
50
46
37
26
18
11
4
4
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
10
16
21
23
22
14
20
27
42
43
40

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)

5
4
4
4
4
5
4
4
4
3
3
4
4
4
4
4
4
3
4
4
4
5
4
4

Chance of Frost

Temperature (°C)

22
21
21
20
19
19
19
19
18
18
18
18
17
18
20
21
22
24
25
27
26
26
26
25

Feels Like (°C)

23
21
21
20
19
18
18
19
18
18
18
18
18
18
19
20
21
21
21
21
29
29
28
27

Dew Point (°C)

15
14
14
13
12
11
12
12
12
12
13
14
14
14
15
17
19
18
18
18
19
21
22
22

Relative Humidity (%)

63
62
64
64
61
60
62
64
67
70
73
79
79
74
75
77
79
72
66
60
66
73
82
83

Pressure (mb)

1014
1015
1015
1016
1016
1016
1016
1017
1017
1017
1017
1017
1018
1018
1018
1019
1019
1018
1018
1018
1018
1017
1017
1017

Ozone (du)

299
299
299
298
297
297
296
296
296
298
299
298
297
297
296
295
295
295
295
295
296
297
299
297

Saturday 12

Waxing Crescent 8%

09:28

19:53

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 OK
11 OK
12 OK
13 OK
14 OK
15 OK
16 OK
17 OK
18 Bad

Sun - Rise: 06:47, Set: 19:20, Transit: 13:03. Moon - Rise: 09:28, Set: 19:53. Civil Dark: 19:47 - 06:20. Nautical Dark: 20:18 - 05:49. Astro Dark: 20:51 - 05:16

Total Clouds (% Sky Obscured)

35
49
63
78
70
62
49
46
43
44
49
54
68
60
53
46
40
34
26
23
19
23
46
63

Low Clouds (% Sky Obscured)

26
31
35
42
44
54
49
46
43
44
49
54
68
60
53
43
35
31
26
19
11
3
8
13

Medium Clouds (% Sky Obscured)

8
18
27
35
30
24
19
13
7
1
1
0
0
0
1
1
1
1
1
0
0
0
0
0

High Clouds (% Sky Obscured)

3
14
24
35
23
12
3
7
4
6
15
23
38
39
38
33
23
10
1
6
13
21
39
52

ISS Passover

Visibility (miles)

9
9
8
6
5
5
5
4
6
8
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
Light Rain
Very Light Rain
None
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

29
41
55
73
73
66
56
63
51
32
23
13
2
1
0
0
2
1
1
2
2
2
2
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

24
23
22
22
21
20
20
19
20
19
19
19
20
20
22
24
25
27
28
29
29
29
29
28

Feels Like (°C)

27
27
24
24
24
23
23
21
22
22
22
22
23
22
24
25
26
26
27
27
35
33
32
33

Dew Point (°C)

21
21
21
21
20
20
20
19
19
19
18
19
19
19
19
20
20
20
19
18
18
17
16
18

Relative Humidity (%)

85
88
91
94
96
96
96
98
96
96
95
95
93
93
85
79
72
64
57
50
49
48
46
54

Pressure (mb)

1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1020
1020
1020
1020
1020
1019
1019
1019
1018
1018
1018

Ozone (du)

296
295
293
292
290
289
289
288
288
288
288
288
288
288
289
290
292
290
289
288
287
286
285
285

Sunday 13

Waxing Crescent 15%

10:34

20:18

19 Bad
20 Bad
21 OK
22 OK
23 OK
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

Sun - Rise: 06:48, Set: 19:18, Transit: 13:02. Moon - Rise: 10:34, Set: 20:18. Civil Dark: 19:45 - 06:21. Nautical Dark: 20:17 - 05:50. Astro Dark: 20:49 - 05:17

Total Clouds (% Sky Obscured)

76
63
47
31
48
60
75
74
68
63
72
81
90
90
88
87
76
68
59

Low Clouds (% Sky Obscured)

17
11
8
0
1
1
1
1
0
0
0
0
0
0
0
0
4
8
12

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
5
11
5
8
19
30
32
28
20

High Clouds (% Sky Obscured)

68
57
43
31
48
60
75
74
68
63
69
77
75
60
56
41
34
27
25

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
1
2
0
10
14
13

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)

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

Chance of Frost

Temperature (°C)

26
24
23
22
21
21
21
21
21
21
20
21
22
22
24
26
28
29
30

Feels Like (°C)

32
33
24
25
24
25
24
24
22
23
23
23
24
24
26
26
28
28
28

Dew Point (°C)

18
19
19
19
19
19
19
20
19
20
19
20
20
20
20
20
20
20
19

Relative Humidity (%)

63
73
78
81
85
88
89
92
92
93
93
92
91
89
79
70
63
58
53

Pressure (mb)

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

Ozone (du)

285
284
284
284
284
284
284
284
284
284
284
285
287
288
288
289
290
289
289

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

Generated: 07/09/26 19:06:20. Forecast: 07/09/26 to 13/09/26. Timezone: UTC-4.00