Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Crescent 16%

08:14

00:18

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

Sun - Rise: 06:21, Set: 19:50, Transit: 13:06. Moon - Rise: 08:14, Set: 00:18. Civil Dark: 20:18 - 05:53. Nautical Dark: 20:52 - 05:19. Astro Dark: 21:28 - 04:44

Total Clouds (% Sky Obscured)

32
62
75
58
35
70
61
62
37
58
37
47
100
71
73
73
16
1
0
0
0
0
3
3

Low Clouds (% Sky Obscured)

32
62
60
9
35
70
61
62
36
58
37
47
60
60
60
55
8
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

18
13
75
8
0
0
0
0
0
0
0
0
30
9
12
10
6
0
0
0
0
0
0
3

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
3
3

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
3
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
5
8
7
15
20
38
27
20
14
1
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

3
2
2
6
6
6
9
12
12
13
14
14
14
14
14
14
12
11
7
5
5
4
5
5

Chance of Frost

Temperature (°C)

3
4
5
6
6
6
7
8
9
9
10
11
11
11
11
11
10
9
7
5
4
3
3
2

Feels Like (°C)

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

Dew Point (°C)

-4
-3
-1
1
3
3
3
5
5
1
-3
-5
-6
-6
-5
-5
-4
-3
-4
-4
-5
-5
-5
-5

Relative Humidity (%)

61
60
63
69
76
79
77
81
75
55
39
32
30
30
32
32
39
43
45
52
53
53
55
58

Pressure (mb)

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

Ozone (du)

371
378
391
390
391
397
400
398
397
398
402
411
416
415
414
411
411
406
391
387
384
384
387
386

Tuesday 21

Waxing Crescent 26%

09:15

01:20

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
15 Bad
16 OK
17 OK
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 06:20, Set: 19:51, Transit: 13:06. Moon - Rise: 09:15, Set: 01:20. Civil Dark: 20:19 - 05:52. Nautical Dark: 20:53 - 05:18. Astro Dark: 21:29 - 04:42

Total Clouds (% Sky Obscured)

2
0
0
0
0
0
0
1
4
5
5
5
22
57
22
25
53
54
74
90
99
65
77
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
2
0

Medium Clouds (% Sky Obscured)

2
0
0
0
0
0
0
0
0
0
0
0
22
39
22
25
29
26
69
63
98
52
58
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
2
2
2
3
0
0
0
0
0
0
3
85
72
65
46
81

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

Chance of Frost

Temperature (°C)

2
1
0
-0
-1
-1
1
6
8
9
11
12
13
14
14
15
14
13
11
10
9
9
9
8

Feels Like (°C)

-1
-1
-1
-2
-2
-2
0
6
7
8
9
10
11
12
11
13
12
10
6
5
5
5
5
5

Dew Point (°C)

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

Relative Humidity (%)

63
64
65
65
66
61
50
44
39
35
33
32
32
32
31
32
38
45
46
52
53
51
53
56

Pressure (mb)

1028
1028
1029
1029
1030
1030
1031
1031
1030
1030
1028
1027
1026
1025
1024
1023
1023
1022
1022
1023
1023
1022
1021
1021

Ozone (du)

390
390
386
383
382
383
382
382
380
376
376
375
373
373
371
368
368
370
369
367
368
368
367
366

Wednesday 22

Waxing Crescent 37%

10:25

No Set

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 OK
19 Good
20 Good
21 OK
22 OK
23 OK
00 OK
01 OK

Sun - Rise: 06:19, Set: 19:52, Transit: 13:05. Moon - Rise: 10:25, Set: No Set. Civil Dark: 20:21 - 05:50. Nautical Dark: 20:55 - 05:16. Astro Dark: 21:31 - 04:40

Total Clouds (% Sky Obscured)

92
88
100
100
100
100
100
100
100
83
81
74
56
88
64
73
40
13
4
9
16
17
18
18

Low Clouds (% Sky Obscured)

0
0
1
0
5
15
10
25
54
81
81
74
56
83
49
69
33
11
4
8
15
17
18
18

Medium Clouds (% Sky Obscured)

39
68
99
99
100
100
100
100
100
77
37
69
27
23
18
4
6
0
0
1
1
1
1
0

High Clouds (% Sky Obscured)

71
72
75
100
100
100
100
100
86
15
10
5
0
0
0
0
0
0
0
0
0
0
0
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
6
2
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
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
1
8
62
95
95
52
33
4
0
13
1
3
4
2
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
1
1.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

9
9
9
9
9
9
10
11
12
12
13
15
17
18
19
19
19
18
17
16
15
14
13
12

Feels Like (°C)

4
6
6
5
5
5
7
8
9
10
11
13
15
17
17
17
18
17
16
16
15
14
13
13

Dew Point (°C)

1
1
2
2
3
3
4
6
10
11
12
13
14
16
16
16
15
15
15
15
14
13
12
11

Relative Humidity (%)

57
59
61
64
68
67
67
72
90
93
90
87
85
83
82
81
77
81
87
93
93
93
93
93

Pressure (mb)

1020
1019
1018
1018
1017
1017
1017
1017
1016
1016
1016
1016
1015
1015
1014
1014
1014
1014
1015
1015
1015
1015
1016
1016

Ozone (du)

366
365
361
360
360
363
364
364
365
363
361
361
359
359
359
359
359
357
358
358
359
360
359
359

Thursday 23

First Quarter 49%

11:38

02:10

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

Sun - Rise: 06:17, Set: 19:53, Transit: 13:05. Moon - Rise: 11:38, Set: 02:10. Civil Dark: 20:22 - 05:49. Nautical Dark: 20:56 - 05:15. Astro Dark: 21:32 - 04:38

Total Clouds (% Sky Obscured)

12
10
1
7
14
21
23
33
30
18
41
50
56
28
35
40
44
75
81
86
89
81
74
68

Low Clouds (% Sky Obscured)

12
6
0
0
0
0
0
0
0
0
0
0
7
15
22
16
8
0
0
0
0
1
3
4

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
1
2
2
2
1
0
13
24
35
38
37
33
39
40
46
48
45
38

High Clouds (% Sky Obscured)

0
3
1
7
13
17
17
33
25
14
41
50
56
10
5
9
17
64
77
84
87
73
20
55

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
1
3
5
4
1
0
1
1
0
3
5
3

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

Chance of Frost

Temperature (°C)

11
11
11
11
11
11
12
14
17
19
20
22
23
24
24
25
24
22
20
19
18
16
16
16

Feels Like (°C)

12
11
10
11
10
11
13
15
16
19
20
20
21
22
23
24
24
23
19
17
16
15
15
14

Dew Point (°C)

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

Relative Humidity (%)

95
93
95
90
88
87
77
68
65
58
53
51
48
46
46
45
49
58
62
64
66
65
60
62

Pressure (mb)

1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1016
1015
1014
1014
1013
1013
1012
1012
1013
1013
1013
1013
1013

Ozone (du)

359
358
357
357
358
359
360
360
361
361
359
358
360
359
359
356
356
355
354
353
355
355
353
352

Friday 24

Waxing Gibbous 60%

12:51

02:49

02 Bad
03 OK
04 OK
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

Sun - Rise: 06:16, Set: 19:54, Transit: 13:05. Moon - Rise: 12:51, Set: 02:49. Civil Dark: 20:23 - 05:48. Nautical Dark: 20:57 - 05:13. Astro Dark: 21:34 - 04:37

Total Clouds (% Sky Obscured)

50
45
41
61
67
65
68
74
53
48
43
53
66
63
59
59
59
60
61
64
67
71
77
75

Low Clouds (% Sky Obscured)

6
8
14
11
3
1
5
0
0
0
0
0
20
10
0
0
0
0
0
7
4
21
38
46

Medium Clouds (% Sky Obscured)

27
22
2
8
19
32
44
57
53
48
43
46
11
13
15
26
36
47
49
52
49
53
58
46

High Clouds (% Sky Obscured)

27
45
41
61
67
63
39
4
1
4
3
1
5
8
11
9
7
6
15
13
9
8
14
21

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
8
9
9
9
9
9
8
6

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

Precipitation Probability (%)

3
1
0
0
0
0
1
1
0
6
28
38
49
54
59
53
46
38
37
34
30
38
38
43

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
14
12
12
11
11
12
13
14
20
22
22
22
24
23
23
23
24
24
15
15
14
14
14

Dew Point (°C)

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

Relative Humidity (%)

65
73
76
72
75
79
71
68
65
58
56
57
56
58
59
60
65
70
74
79
83
86
87
86

Pressure (mb)

1012
1012
1012
1012
1012
1013
1013
1012
1012
1012
1011
1010
1010
1010
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009

Ozone (du)

353
354
356
357
358
360
362
360
359
359
359
358
358
358
357
357
356
355
354
355
355
355
354
354

Saturday 25

Waxing Gibbous 71%

14:01

03:21

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 06:15, Set: 19:55, Transit: 13:05. Moon - Rise: 14:01, Set: 03:21. Civil Dark: 20:24 - 05:46. Nautical Dark: 20:58 - 05:12. Astro Dark: 21:35 - 04:35

Total Clouds (% Sky Obscured)

77
72
80
86
93
100
90
80
70
79
88
97
98
99
100
100
100
100
99
98
97
97
97
97

Low Clouds (% Sky Obscured)

28
0
0
0
0
0
19
37
56
55
54
53
52
51
53
51
57
80
97
97
94
86
79
70

Medium Clouds (% Sky Obscured)

49
67
77
80
83
84
60
38
17
36
55
74
61
47
33
23
12
2
5
8
9
6
3
0

High Clouds (% Sky Obscured)

25
29
33
56
78
100
70
41
11
35
61
92
91
96
100
81
63
44
47
43
28
16
25
38

ISS Passover

Visibility (miles)

5
5
5
5
6
8
9
7
4
1
4
7
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
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

58
63
61
71
79
85
75
68
58
55
51
45
42
35
28
25
21
14
14
13
12
14
13
10

Precipitation Amount (mm)

0
0.2
0.2
0.3
0.4
0.5
0.3
0.3
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

12
12
12
11
11
11
11
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Feels Like (°C)

13
10
10
10
9
9
9
6
6
6
6
6
6
6
6
6
6
6
6
6
6
7
7
7

Dew Point (°C)

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

Relative Humidity (%)

86
90
93
96
96
96
96
96
96
96
95
95
96
95
95
95
95
95
95
96
95
95
95
96

Pressure (mb)

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

Ozone (du)

353
352
352
351
352
352
353
353
354
355
355
355
356
355
355
355
358
360
363
363
363
362
362
362

Sunday 26

Waxing Gibbous 80%

15:08

03:47

Sun - Rise: 06:13, Set: 19:56, Transit: 13:05. Moon - Rise: 15:08, Set: 03:47. Civil Dark: 20:25 - 05:45. Nautical Dark: 20:59 - 05:10. Astro Dark: 21:36 - 04:33

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 20/04/26 02:13:08. Forecast: 20/04/26 to 26/04/26. Timezone: UTC-4.00