Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Crescent 16%

09:15

00:18

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

Sun - Rise: 06:20, Set: 19:50, Transit: 13:06. Moon - Rise: 09:15, Set: 00:18. Civil Dark: 20:18 - 05:52. Nautical Dark: 20:52 - 05:18. Astro Dark: 21:28 - 04:42

Total Clouds (% Sky Obscured)

74
71
72
26
24
0
0
0
3
4
23
4
0
2
0
0
0
3
6
4
16
9
7
22

Low Clouds (% Sky Obscured)

60
55
40
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

6
5
5
10
13
0
0
0
0
4
13
4
0
0
0
0
0
0
0
0
0
2
4
9

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
2
2
0
0
1
0
0
0
2
4
4
16
9
6
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
11
11
12
10
7
5
5
5
4
4
3
3
3
4
3
3
2
2
2
3
4
5
6

Chance of Frost

Temperature (°C)

11
11
10
10
9
7
6
4
3
3
3
2
2
2
1
-0
-1
1
6
8
9
11
12
13

Feels Like (°C)

4
5
4
5
5
5
3
2
0
-0
-1
0
0
0
-1
-2
-3
0
5
6
8
8
10
11

Dew Point (°C)

-6
-6
-6
-4
-4
-3
-4
-6
-6
-7
-6
-5
-5
-5
-5
-6
-7
-8
-5
-5
-5
-5
-5
-4

Relative Humidity (%)

29
30
31
37
41
47
51
48
51
50
52
57
62
64
66
67
63
53
45
40
36
32
31
30

Pressure (mb)

1023
1023
1024
1024
1025
1026
1027
1028
1028
1028
1028
1028
1028
1029
1029
1029
1030
1031
1031
1030
1029
1028
1027
1026

Ozone (du)

417
415
414
412
403
394
391
387
388
389
390
393
391
385
379
378
378
378
377
376
377
376
375
374

Tuesday 21

Waxing Crescent 26%

10:25

01:20

15 Good
16 OK
17 Good
18 OK
19 Good
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 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:19, Set: 19:51, Transit: 13:05. Moon - Rise: 10:25, Set: 01:20. Civil Dark: 20:19 - 05:50. Nautical Dark: 20:53 - 05:16. Astro Dark: 21:29 - 04:40

Total Clouds (% Sky Obscured)

3
30
16
23
18
22
37
42
57
78
94
95
88
100
98
85
100
100
100
100
100
97
98
100

Low Clouds (% Sky Obscured)

0
0
3
3
3
0
0
0
0
5
7
1
0
0
5
5
5
22
30
40
55
72
96
57

Medium Clouds (% Sky Obscured)

3
15
5
9
10
15
28
26
33
48
91
94
86
100
97
76
100
100
100
100
90
54
35
60

High Clouds (% Sky Obscured)

0
0
0
0
0
2
1
2
53
52
57
46
45
90
82
36
100
100
100
100
100
38
20
2

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
2
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
Light Rain
Light Rain
Light Rain
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
30
34
95
95
67
33
16
7

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1.4
0.8
0.4
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
15
15
14
13
11
10
10
8
8
8
8
9
9
9
8
8
9
11
12
13
14
15
16

Feels Like (°C)

12
13
13
12
12
9
8
7
5
5
4
4
5
5
5
4
5
7
8
9
11
12
13
15

Dew Point (°C)

-4
-3
-3
-1
1
-0
0
0
-1
-1
-1
-1
1
1
1
1
2
4
6
10
12
11
12
14

Relative Humidity (%)

30
30
30
36
44
45
50
52
51
52
54
54
56
58
59
59
62
68
71
89
93
84
79
83

Pressure (mb)

1025
1024
1023
1022
1022
1022
1023
1023
1022
1022
1021
1020
1019
1018
1018
1017
1017
1017
1017
1017
1017
1016
1016
1016

Ozone (du)

373
371
369
369
370
369
368
367
365
363
361
362
364
362
362
363
363
365
367
366
364
363
363
361

Wednesday 22

Waxing Crescent 37%

11:38

02:10

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

Sun - Rise: 06:17, Set: 19:52, Transit: 13:05. Moon - Rise: 11:38, Set: 02:10. Civil Dark: 20:21 - 05:49. Nautical Dark: 20:55 - 05:15. Astro Dark: 21:31 - 04:38

Total Clouds (% Sky Obscured)

93
50
29
35
45
46
49
31
9
9
0
0
0
2
2
15
6
5
3
0
2
5
8
9

Low Clouds (% Sky Obscured)

48
47
29
28
38
46
49
31
8
9
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

55
5
0
26
28
0
4
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
1
1
15
5
4
2
0
2
4
8
8

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 (%)

8
29
24
6
14
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
9
8
9
6
4
5
5
4
5
5
5
5
4
4
4
4
3
5
6
7
8
8
9

Chance of Frost

Temperature (°C)

17
18
19
19
19
17
16
15
14
13
13
12
12
11
11
11
11
13
16
18
20
21
22
23

Feels Like (°C)

15
16
18
18
17
16
14
13
13
13
12
12
12
12
11
11
11
14
16
17
19
20
21
21

Dew Point (°C)

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

Relative Humidity (%)

88
78
76
75
78
85
87
92
93
93
93
93
93
95
95
93
91
84
74
55
48
44
41
42

Pressure (mb)

1015
1015
1014
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1016
1016

Ozone (du)

363
363
362
361
358
357
356
357
359
359
359
359
358
358
359
360
360
359
360
360
359
358
358
357

Thursday 23

First Quarter 49%

12:51

02:49

15 Good
16 Good
17 Good
18 Good
19 Good
20 OK
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
13 Bad
14 Bad

Sun - Rise: 06:16, Set: 19:53, Transit: 13:05. Moon - Rise: 12:51, Set: 02:49. Civil Dark: 20:22 - 05:48. Nautical Dark: 20:56 - 05:13. Astro Dark: 21:32 - 04:37

Total Clouds (% Sky Obscured)

3
2
2
1
6
26
43
65
65
66
71
57
57
51
57
37
81
60
63
82
66
49
47
47

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
4
7
4
5
5
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
8
16
24
27
31
33
20
10
0
0
0
0
17
33
61
46
35
26
27

High Clouds (% Sky Obscured)

2
1
1
1
6
26
43
60
55
63
70
6
57
0
11
17
31
31
26
41
49
11
3
7

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
1
1
1
0
9
5
3
1
0
12
24
13
7
14
33
23

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

Chance of Frost

Temperature (°C)

24
24
24
23
21
20
18
17
16
15
15
15
14
14
14
15
15
15
18
20
22
23
24
25

Feels Like (°C)

22
23
23
23
23
20
17
16
14
14
13
13
13
12
12
13
14
14
19
21
21
23
26
25

Dew Point (°C)

10
10
11
12
13
12
11
11
9
9
8
9
10
9
9
10
10
10
12
13
15
15
15
17

Relative Humidity (%)

41
41
43
49
57
61
64
65
64
65
64
69
73
71
71
71
75
72
66
65
65
58
57
63

Pressure (mb)

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

Ozone (du)

357
355
354
355
356
356
356
356
357
358
360
361
360
360
357
357
358
359
358
356
355
354
353
353

Friday 24

Waxing Gibbous 60%

14:01

03:21

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 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:15, Set: 19:54, Transit: 13:05. Moon - Rise: 14:01, Set: 03:21. Civil Dark: 20:23 - 05:46. Nautical Dark: 20:57 - 05:12. Astro Dark: 21:34 - 04:35

Total Clouds (% Sky Obscured)

39
62
66
60
46
58
78
93
96
94
93
77
85
88
90
92
94
92
92
93
94
97
100
100

Low Clouds (% Sky Obscured)

0
4
3
0
5
2
0
0
0
0
0
14
29
43
48
53
58
39
39
58
59
59
53
34

Medium Clouds (% Sky Obscured)

27
28
21
19
24
45
69
93
86
74
63
77
66
52
37
21
5
11
14
32
56
76
94
94

High Clouds (% Sky Obscured)

10
61
65
60
26
58
4
8
66
76
85
77
78
72
70
68
66
43
24
15
37
68
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
8
8
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
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

23
37
34
19
27
27
28
10
8
15
65
57
51
33
30
26
19
16
11
4
10
14
17
29

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

24
24
23
21
20
18
17
17
15
15
14
13
12
11
11
12
12
12
14
14
16
17
18
20

Feels Like (°C)

24
25
22
19
18
16
15
14
13
12
11
10
9
9
9
9
9
9
11
11
12
13
13
13

Dew Point (°C)

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

Relative Humidity (%)

62
59
59
59
65
71
73
75
85
83
82
87
90
93
95
93
95
93
92
89
86
82
77
74

Pressure (mb)

1009
1009
1009
1009
1009
1009
1010
1010
1010
1010
1010
1009
1009
1009
1008
1008
1008
1009
1008
1008
1008
1008
1008
1008

Ozone (du)

353
352
353
354
354
353
354
353
354
354
355
355
357
358
360
359
359
359
359
359
359
359
360
360

Saturday 25

Waxing Gibbous 71%

No Rise

03:47

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 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:13, Set: 19:55, Transit: 13:05. Moon - Rise: No Rise, Set: 03:47. Civil Dark: 20:24 - 05:45. Nautical Dark: 20:58 - 05:10. Astro Dark: 21:35 - 04:33

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
97
95
93
95
97
99
99
99
100
100
99
99
99
99
99
97

Low Clouds (% Sky Obscured)

13
10
27
43
60
67
73
79
71
62
53
63
72
83
80
81
91
98
97
96
89
84
80
78

Medium Clouds (% Sky Obscured)

94
95
95
95
88
66
40
14
10
7
4
0
0
0
0
0
0
0
0
0
11
21
32
49

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
67
32
0
27
44
28
21
33
44
60
68
55
5
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
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

35
41
40
43
48
49
45
45
36
24
16
16
12
0
1
2
1
3
4
2
3
2
1
3

Precipitation Amount (mm)

0
0
0
0
0.3
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
19
18
17
15
13
11
11
10
10
10
10
10
10
9
10
10
10
11
12
13
14
15
15

Feels Like (°C)

20
19
18
20
19
19
9
9
9
9
8
9
8
8
8
8
8
8
9
9
10
10
10
11

Dew Point (°C)

14
14
13
13
12
11
9
9
8
8
8
8
7
7
7
7
7
7
7
7
7
8
8
8

Relative Humidity (%)

72
71
71
77
82
89
88
87
87
87
87
87
85
85
85
82
81
78
76
72
69
67
62
59

Pressure (mb)

1008
1008
1008
1009
1010
1010
1011
1012
1012
1013
1013
1013
1014
1014
1014
1015
1015
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

360
361
361
361
362
363
364
364
365
367
368
370
367
364
361
362
363
363
363
362
362
363
364
365

Sunday 26

Waxing Gibbous 80%

15:08

04:10

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 Bad

Sun - Rise: 06:12, Set: 19:56, Transit: 13:05. Moon - Rise: 15:08, Set: 04:10. Civil Dark: 20:25 - 05:43. Nautical Dark: 20:59 - 05:09. Astro Dark: 21:36 - 04:31

Total Clouds (% Sky Obscured)

94
93
92
84
78
78
79
83
61
65
65
82
92
97
97
97
100

Low Clouds (% Sky Obscured)

77
71
62
49
44
51
59
66
44
22
15
45
45
40
50
64
74

Medium Clouds (% Sky Obscured)

67
85
92
84
78
78
73
67
58
49
60
58
65
72
70
68
80

High Clouds (% Sky Obscured)

0
4
21
41
50
27
18
3
2
2
0
0
1
0
2
5
7

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
8
7
7
7
7
8
9
9
9
9

Fog (%)

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
Very Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

2
1
11
20
29
31
30
21
30
40
52
52
51
49
49
42
27

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.2
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
16
16
15
14
13
12
12
11
10
10
9
9
9
9
9
9

Feels Like (°C)

14
14
14
14
14
14
10
9
8
9
8
8
6
7
7
7
7

Dew Point (°C)

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

Relative Humidity (%)

61
61
64
70
79
87
87
88
88
90
91
93
95
95
96
95
95

Pressure (mb)

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

Ozone (du)

364
363
362
361
359
357
358
358
359
358
358
357
356
355
354
352
350

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

Generated: 20/04/26 15:25:08. Forecast: 20/04/26 to 26/04/26. Timezone: UTC-4.00