Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 7

Waning Crescent 1%

06:10

16:16

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

Sun - Rise: 06:44, Set: 16:58, Transit: 11:51. Moon - Rise: 06:10, Set: 16:16. Civil Dark: 17:27 - 06:16. Nautical Dark: 17:59 - 05:44. Astro Dark: 18:30 - 05:12

Total Clouds (% Sky Obscured)

48
41
48
13
31
39
24
39
35
1
0
0
0
0
0
0
34
23
23
18
15
0
0
0

Low Clouds (% Sky Obscured)

3
13
5
8
16
39
24
25
18
1
0
0
0
0
0
0
23
17
18
12
11
0
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
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
1
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

2
2
3
3
2
2
2
2
2
2
3
3
2
2
2
2
2
2
2
2
1
1
2
3

Relative Humidity (%)

52
56
67
69
66
69
69
63
65
69
73
75
74
75
75
69
60
52
48
44
41
39
39
45

Pressure (mb)

1015
1016
1016
1016
1017
1016
1016
1016
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018
1017
1016
1015
1014
1013
1013

Ozone (du)

291
289
289
290
293
292
291
291
290
292
292
292
295
296
295
295
294
294
292
291
292
290
289
291

Sunday 8

Waning Crescent 0%

07:15

16:49

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

Sun - Rise: 06:45, Set: 16:57, Transit: 11:51. Moon - Rise: 07:15, Set: 16:49. Civil Dark: 17:26 - 06:17. Nautical Dark: 17:58 - 05:45. Astro Dark: 18:30 - 05:13

Total Clouds (% Sky Obscured)

3
61
35
4
2
0
2
24
6
3
2
0
1
10
3
37
58
69
61
45
48
65
43
38

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
37
58
69
59
40
43
55
31
29

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
0
0
0

High Clouds (% Sky Obscured)

3
58
30
3
1
0
1
15
4
2
1
0
0
6
1
0
0
0
1
1
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
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)

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

Chance of Frost

Temperature (°C)

12
11
10
9
9
9
8
9
9
9
8
8
8
7
7
9
10
12
13
14
14
15
14
13

Feels Like (°C)

10
9
7
6
7
6
5
6
5
5
5
5
5
4
4
6
6
6
7
9
9
10
10
10

Dew Point (°C)

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

Relative Humidity (%)

54
56
60
61
57
48
47
49
52
54
56
57
62
65
69
67
62
55
50
45
41
42
44
47

Pressure (mb)

1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1015
1016
1016
1016
1016
1015
1015
1015
1016
1016

Ozone (du)

292
290
291
292
291
291
292
294
295
296
297
296
293
293
292
292
293
294
294
293
293
292
292
291

Monday 9

New Moon 2%

08:18

No Set

17 OK
18 OK
19 OK
20 OK
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 OK
11 OK
12 OK
13 OK
14 OK
15 OK
16 Good

Sun - Rise: 06:46, Set: 16:56, Transit: 11:51. Moon - Rise: 08:18, Set: No Set. Civil Dark: 17:25 - 06:18. Nautical Dark: 17:57 - 05:46. Astro Dark: 18:29 - 05:14

Total Clouds (% Sky Obscured)

30
40
22
45
38
34
39
97
95
89
79
80
76
72
86
55
59
22
24
20
21
23
24
18

Low Clouds (% Sky Obscured)

23
30
14
15
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
7
10
7

Medium Clouds (% Sky Obscured)

0
0
0
3
3
5
31
94
95
79
12
4
3
6
23
2
0
0
24
19
13
6
0
0

High Clouds (% Sky Obscured)

0
0
1
16
30
33
6
86
51
89
79
74
63
50
54
52
55
22
5
4
3
2
1
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
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
6
5
5
5
5
5
4
4
4
5
4
4
4
5
5
7
8
8
8
8
7
7
5

Chance of Frost

Temperature (°C)

12
10
9
8
8
7
7
6
6
6
6
6
6
6
6
7
10
12
14
16
17
17
17
16

Feels Like (°C)

9
8
8
7
5
4
4
5
4
4
3
3
4
4
4
4
8
10
12
14
15
15
15
15

Dew Point (°C)

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

Relative Humidity (%)

52
58
62
64
67
68
70
71
70
67
70
72
74
75
76
68
58
51
44
40
37
35
37
43

Pressure (mb)

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

Ozone (du)

291
291
290
289
288
288
288
288
288
290
290
290
289
287
286
284
284
284
285
285
286
287
287
287

Tuesday 10

Waxing Crescent 6%

09:17

17:28

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

Sun - Rise: 06:47, Set: 16:55, Transit: 11:51. Moon - Rise: 09:17, Set: 17:28. Civil Dark: 17:24 - 06:19. Nautical Dark: 17:57 - 05:47. Astro Dark: 18:28 - 05:15

Total Clouds (% Sky Obscured)

12
7
9
12
12
10
7
3
2
2
0
3
4
3
3
1
1
9
16
24
49
65
85
83

Low Clouds (% Sky Obscured)

4
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
12
17
33
32
41
22

Medium Clouds (% Sky Obscured)

0
0
3
6
9
7
5
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

2
3
2
2
1
2
1
0
0
1
0
3
3
3
3
1
0
0
0
0
32
64
85
83

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)

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

Chance of Frost

Temperature (°C)

14
13
11
11
10
10
9
9
9
9
9
8
8
8
8
10
13
15
16
17
18
18
18
17

Feels Like (°C)

12
12
10
10
9
9
9
9
9
9
8
8
8
8
8
10
13
15
17
17
18
17
17
16

Dew Point (°C)

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

Relative Humidity (%)

49
53
56
63
68
72
74
76
75
78
80
81
81
84
84
76
64
58
54
50
49
48
48
54

Pressure (mb)

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

Ozone (du)

287
288
288
289
290
290
290
289
290
291
291
294
296
296
294
295
297
299
300
300
301
299
300
301

Wednesday 11

Waxing Crescent 11%

10:11

18:13

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

Sun - Rise: 06:48, Set: 16:55, Transit: 11:51. Moon - Rise: 10:11, Set: 18:13. Civil Dark: 17:24 - 06:19. Nautical Dark: 17:56 - 05:47. Astro Dark: 18:27 - 05:15

Total Clouds (% Sky Obscured)

93
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99
98
95
91
87
87
90
96
97

Low Clouds (% Sky Obscured)

12
1
6
43
86
91
90
89
87
88
89
87
83
80
61
43
26
28
31
33
42
52
68
81

Medium Clouds (% Sky Obscured)

0
0
20
40
55
56
72
50
52
56
48
45
39
35
38
38
47
54
57
55
66
78
90
91

High Clouds (% Sky Obscured)

93
100
100
100
68
100
100
99
100
100
100
100
100
100
98
96
95
76
57
37
31
25
16
34

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
1
2
2
6
9
6
13
13
10
21
18
11
14
12
6
18
23
12
33

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
12
11
10
9
10
11
10
10
10
9
9
9
9
9
9
9
10
9
9
9
13
12
11

Dew Point (°C)

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

Relative Humidity (%)

62
64
63
66
65
65
67
70
71
71
72
71
72
73
76
71
66
63
56
51
47
48
48
49

Pressure (mb)

1012
1012
1013
1012
1012
1012
1011
1011
1010
1010
1009
1009
1008
1008
1008
1007
1007
1007
1006
1005
1004
1003
1003
1003

Ozone (du)

303
303
302
302
302
303
301
301
304
304
304
304
304
305
307
307
307
307
306
306
305
304
302
300

Thursday 12

Waxing Crescent 18%

10:57

19:05

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

Sun - Rise: 06:49, Set: 16:54, Transit: 11:51. Moon - Rise: 10:57, Set: 19:05. Civil Dark: 17:23 - 06:20. Nautical Dark: 17:56 - 05:48. Astro Dark: 18:27 - 05:16

Total Clouds (% Sky Obscured)

97
97
97
98
98
99
99
100
100
100
100
91
83
74
78
82
86
87
87
87
87
87
87
87

Low Clouds (% Sky Obscured)

93
93
87
82
76
71
66
61
51
41
30
44
61
71
75
80
84
83
80
78
81
84
87
86

Medium Clouds (% Sky Obscured)

94
97
97
98
98
99
99
100
100
100
100
86
74
64
56
49
40
53
65
76
74
72
72
72

High Clouds (% Sky Obscured)

35
43
30
18
19
43
70
100
100
100
100
77
53
27
19
12
4
6
11
22
30
34
36
35

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

42
49
63
76
93
95
95
95
95
95
95
95
95
95
83
64
38
50
70
87
95
95
95
95

Precipitation Amount (mm)

0
0
0.3
0.4
0.7
1
1.1
1.3
1.4
1.6
1.8
1.3
1
0.7
0.4
0.3
0
0
0.3
0.5
0.8
0.9
0.9
1.2

Wind Speed/Direction (mph)

5
7
9
10
10
12
12
13
14
13
13
12
11
10
9
9
10
10
11
11
11
11
11
11

Chance of Frost

Temperature (°C)

12
11
11
9
9
8
7
7
7
7
7
6
6
5
5
5
5
5
5
6
6
6
6
5

Feels Like (°C)

12
13
15
7
7
6
6
7
7
2
2
2
1
1
0
-1
-1
-1
-1
0
1
0
0
-0

Dew Point (°C)

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

Relative Humidity (%)

60
73
90
90
90
90
90
90
91
91
93
93
93
93
93
93
93
91
93
94
94
96
94
94

Pressure (mb)

1003
1004
1004
1004
1004
1004
1003
1003
1002
1002
1002
1001
1002
1002
1002
1002
1002
1002
1002
1001
1001
1001
1001
1001

Ozone (du)

300
300
301
302
303
304
305
306
307
307
306
306
309
311
314
317
319
322
321
320
320
321
322
323

Friday 13

Waxing Crescent 26%

11:36

20:02

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
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 06:50, Set: 16:53, Transit: 11:52. Moon - Rise: 11:36, Set: 20:02. Civil Dark: 17:23 - 06:21. Nautical Dark: 17:55 - 05:49. Astro Dark: 18:26 - 05:17

Total Clouds (% Sky Obscured)

86
86
88
90
91
91
92
92
90
87
84
72
61
50
57
61
65
80
95
100

Low Clouds (% Sky Obscured)

86
86
78
68
57
52
48
44
33
19
5
12
19
30
39
47
49
68
85
100

Medium Clouds (% Sky Obscured)

73
77
80
80
79
83
86
90
90
87
84
72
57
39
37
35
35
37
34
30

High Clouds (% Sky Obscured)

32
29
37
43
49
26
9
1
0
0
0
0
0
0
13
20
20
19
9
10

ISS Passover

Visibility (miles)

3
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Fog (%)

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
Light Rain
Light Rain
Very Light Rain
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Sleet
Light Rain
Light Rain

Precipitation Probability (%)

95
95
95
95
74
83
87
89
88
85
79
81
81
76
69
63
60
74
86
95

Precipitation Amount (mm)

1.1
0.8
0.9
0.6
0.3
0.5
0.6
0.6
0.6
0.5
0.4
0.5
0.5
0.4
0.3
0.2
0.2
0.4
0.6
0.8

Wind Speed/Direction (mph)

11
12
12
12
11
11
11
11
11
11
11
11
10
10
10
10
11
12
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
98
98
98
98
98
100
98
98
98
98
98
98
98
100
98
100
98
98

Pressure (mb)

1002
1002
1003
1003
1003
1003
1003
1003
1003
1004
1004
1004
1005
1006
1006
1007
1007
1007
1007
1007

Ozone (du)

325
327
329
329
329
329
331
332
334
336
338
340
345
350
355
356
357
358
357
357

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

Generated: 07/11/26 16:53:18. Forecast: 07/11/26 to 13/11/26. Timezone: UTC-5.00