Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 19

Waxing Crescent 16%

08:14

23:05

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

Sun - Rise: 06:21, Set: 19:49, Transit: 13:06. Moon - Rise: 08:14, Set: 23:05. Civil Dark: 20:17 - 05:53. Nautical Dark: 20:51 - 05:19. Astro Dark: 21:27 - 04:44

Total Clouds (% Sky Obscured)

51
40
37
17
0
0
0
3
29
49
100
87
83
79
33
60
46
71
14
55
73
75
71
70

Low Clouds (% Sky Obscured)

8
9
0
0
0
0
0
3
4
30
62
68
59
78
25
60
43
70
14
52
70
75
71
70

Medium Clouds (% Sky Obscured)

14
16
0
0
0
0
0
0
14
19
32
76
83
13
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
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
1
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
3
8
11
10
8
14
3
19
3
1
0
0
0
3
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)

13
13
12
8
5
4
2
2
3
4
4
5
4
7
7
10
13
14
14
14
14
15
14
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

40
44
45
46
55
58
58
58
58
59
59
61
64
75
76
88
78
57
42
37
33
32
32
33

Pressure (mb)

1015
1016
1017
1019
1020
1020
1020
1020
1020
1019
1019
1020
1020
1020
1021
1022
1023
1024
1024
1024
1024
1024
1024
1024

Ozone (du)

342
349
352
354
355
356
356
360
368
380
383
393
392
393
396
402
400
402
407
413
417
417
417
415

Monday 20

Waxing Crescent 14%

09:15

00:18

17 Bad
18 OK
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 Good
13 Good
14 Good
15 OK
16 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)

66
14
1
1
0
0
3
3
3
2
0
0
0
0
1
0
0
7
5
5
8
5
25
28

Low Clouds (% Sky Obscured)

66
11
1
1
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
3
2
0
0
0
0
0
0
0
0
0
0
1
1
15
27

High Clouds (% Sky Obscured)

0
0
0
0
0
0
2
2
2
2
0
0
0
0
0
0
0
4
2
2
1
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)

14
13
11
7
5
5
4
5
4
4
3
3
3
3
3
2
1
2
4
4
5
6
6
6

Chance of Frost

Temperature (°C)

10
9
8
6
5
4
3
2
2
1
1
1
0
-0
0
2
5
7
9
10
11
13
13
14

Feels Like (°C)

3
3
4
4
3
2
1
-0
-1
-1
-1
-1
-1
-2
-1
1
5
6
7
8
10
10
11
11

Dew Point (°C)

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

Relative Humidity (%)

34
39
44
48
53
54
54
56
58
63
64
66
67
67
63
52
45
39
35
33
32
31
31
32

Pressure (mb)

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

Ozone (du)

411
413
411
398
394
392
394
394
396
400
400
393
391
391
390
392
391
390
385
383
380
377
374
372

Tuesday 21

Waxing Crescent 26%

10:25

01:20

17 OK
18 Bad
19 Bad
20 Good
21 Good
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
14 Bad
15 Bad
16 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)

47
49
64
3
12
42
48
66
92
89
94
100
100
100
100
100
100
100
100
100
100
95
88
79

Low Clouds (% Sky Obscured)

0
0
0
0
0
9
28
2
0
0
5
8
2
28
21
40
35
35
35
51
54
65
67
70

Medium Clouds (% Sky Obscured)

47
49
64
3
12
40
40
66
82
89
94
95
100
65
100
100
89
100
100
35
35
34
31
26

High Clouds (% Sky Obscured)

0
0
0
1
9
2
2
2
72
63
80
100
100
100
90
100
100
98
99
100
1
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
9
6
7
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
Very Light Rain
Light Rain
None
None
None
Very Light Rain
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
25
59
78
50
38
37
62
34
32
30

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
14
13
10
9
8
8
7
7
7
7
8
8
8
8
9
10
13
14
15
17
16
16
17

Feels Like (°C)

12
11
10
7
6
4
4
4
4
5
5
5
5
5
5
7
8
10
12
13
16
15
15
15

Dew Point (°C)

-2
-0
1
-1
0
-1
-2
-2
-1
-0
0
1
2
2
3
4
8
11
13
14
14
13
14
14

Relative Humidity (%)

33
38
46
47
53
52
50
52
56
58
59
61
64
67
68
70
84
90
92
93
81
85
83
81

Pressure (mb)

1024
1023
1023
1023
1024
1024
1023
1022
1022
1021
1020
1020
1019
1019
1019
1018
1018
1018
1017
1017
1016
1016
1016
1015

Ozone (du)

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

Wednesday 22

Waxing Crescent 37%

11:38

02:10

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

45
24
0
2
5
7
15
19
24
16
9
10
9
6
23
9
27
51
46
46
36
13
20
3

Low Clouds (% Sky Obscured)

45
22
0
2
5
7
14
19
24
16
9
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

16
11
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
1
1
2
2
4
10
9
6
23
4
27
51
46
46
36
13
20
3

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 (%)

24
24
12
9
6
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
6
4
4
4
3
3
4
4
4
4
4
4
4
4
5
5
7
7
7
6
6
5

Chance of Frost

Temperature (°C)

17
18
17
15
14
14
13
13
12
12
12
11
11
11
12
13
15
17
19
21
22
23
23
24

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
73
81
90
92
92
93
93
93
95
95
95
93
92
90
82
72
65
61
54
50
48
46
45

Pressure (mb)

1015
1015
1015
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1017
1016
1016
1015

Ozone (du)

361
360
359
359
359
359
361
360
360
358
357
356
356
358
358
359
359
359
357
357
356
357
356
357

Thursday 23

First Quarter 49%

12:51

02:49

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

10
12
15
23
35
60
51
26
28
43
43
67
67
72
75
60
45
23
30
45
57
55
53
54

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
10
20
30
20
10
0

Medium Clouds (% Sky Obscured)

0
0
0
3
6
9
15
25
28
40
43
48
51
54
57
42
27
11
21
34
45
50
53
54

High Clouds (% Sky Obscured)

10
12
15
22
29
60
42
8
4
10
6
33
54
57
67
48
30
11
7
5
1
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
1
1
13
0
0
0
0
6
9
10
30
42
52

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

23
22
22
19
19
18
15
15
15
14
14
14
13
13
13
14
15
16
16
17
18
17
26
25

Dew Point (°C)

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

Relative Humidity (%)

46
50
58
60
62
63
65
66
68
70
70
70
65
71
71
69
66
63
59
58
55
53
57
60

Pressure (mb)

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

Ozone (du)

355
355
355
355
355
355
354
353
353
353
355
357
358
361
362
362
362
362
362
361
361
360
360
359

Friday 24

Waxing Gibbous 60%

14:01

03:21

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: 06:15, 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)

50
48
55
64
74
83
84
85
75
73
72
80
86
93
100
90
80
70
79
88
97
99
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
1
9
16
28
38
43
29
0
0
19
37
56
55
54
53
54
56
58

Medium Clouds (% Sky Obscured)

44
36
34
31
28
23
24
29
31
47
65
80
78
83
86
62
37
11
14
18
17
26
36
47

High Clouds (% Sky Obscured)

12
24
36
32
32
35
35
27
33
29
32
36
61
80
100
73
41
11
35
59
83
89
94
100

ISS Passover

Visibility (miles)

9
7
5
2
5
7
9
9
9
9
6
3
0
1
1
1
3
6
8
8
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

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

Precipitation Probability (%)

56
55
43
50
58
67
59
51
42
68
83
95
87
76
61
62
63
65
61
55
49
40
31
20

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

4
2
2
4
4
4
5
5
5
5
4
4
5
6
7
8
9
11
13
12
12
12
11
10

Chance of Frost

Temperature (°C)

22
20
19
18
17
16
15
14
14
13
12
12
11
11
11
10
11
10
10
10
10
10
9
9

Feels Like (°C)

24
24
24
23
18
18
17
17
17
16
11
11
10
10
10
10
8
8
7
7
7
7
6
5

Dew Point (°C)

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

Relative Humidity (%)

65
69
75
79
85
90
95
95
93
93
95
96
98
96
96
96
96
96
95
95
93
93
93
93

Pressure (mb)

1009
1009
1009
1009
1009
1009
1010
1009
1009
1009
1009
1009
1008
1009
1009
1010
1010
1011
1011
1011
1012
1012
1012
1012

Ozone (du)

358
358
358
357
358
358
359
358
357
357
359
360
362
363
364
364
364
363
362
362
361
360
360
360

Saturday 25

Waxing Gibbous 71%

15:08

03:47

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 OK
07 OK
08 OK
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:13, Set: 19:55, Transit: 13:05. Moon - Rise: 15:08, 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
99
98
97
97
97
94
94
92
100
75
48
22
48
75
99
99
99
100

Low Clouds (% Sky Obscured)

56
54
55
64
70
67
54
45
25
10
0
0
0
0
0
8
17
25
19
12
22

Medium Clouds (% Sky Obscured)

36
25
17
16
16
10
7
5
2
2
1
0
0
0
0
0
0
0
3
3
4

High Clouds (% Sky Obscured)

99
97
90
64
33
1
13
25
38
58
79
100
71
43
14
38
53
56
69
83
100

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

Fog (%)

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

Precipitation Probability (%)

23
25
27
24
20
15
16
16
13
12
8
0
0
0
0
0
1
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

Wind Speed/Direction (mph)

10
9
7
6
6
6
5
6
6
6
6
5
5
5
6
6
6
7
7
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
93
95
93
93
93
91
93
91
90
90
90
87
84
81
75
70
64
60
57

Pressure (mb)

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

Ozone (du)

359
360
361
361
360
359
357
361
364
367
365
364
362
361
361
360
360
360
360
358
357

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

Generated: 19/04/26 17:15:18. Forecast: 19/04/26 to 25/04/26. Timezone: UTC-4.00