Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 19

Waxing Crescent 8%

07:24

23:05

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

Sun - Rise: 06:23, Set: 19:49, Transit: 13:06. Moon - Rise: 07:24, Set: 23:05. Civil Dark: 20:17 - 05:55. Nautical Dark: 20:51 - 05:21. Astro Dark: 21:27 - 04:45

Total Clouds (% Sky Obscured)

74
80
84
87
97
100
100
100
100
100
100
100
86
78
66
39
30
27
12
0
0
0
4
36

Low Clouds (% Sky Obscured)

12
31
24
87
91
100
89
87
87
60
67
82
24
78
44
21
0
0
0
0
0
0
4
36

Medium Clouds (% Sky Obscured)

74
80
78
19
33
96
97
100
100
100
100
96
65
1
17
13
19
24
12
0
0
0
0
0

High Clouds (% Sky Obscured)

74
80
84
87
68
100
100
100
100
100
100
100
60
14
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
8
8
9
9
9
9
2
3
4
6
8
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
Light Rain
Light Rain
Light Rain
None
None
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

24
45
38
95
36
40
93
95
95
75
49
28
6
2
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0.4
0.4
0.7
0
0
0.7
1.9
1
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
5
3
0
19
17
15
14
11
12
11
10
9
11
14
15
14
12
10
7
4
2
2
3

Chance of Frost

Temperature (°C)

16
15
15
15
13
12
11
10
8
7
8
8
10
12
14
14
13
12
11
10
8
7
6
6

Feels Like (°C)

16
15
15
9
7
6
5
5
4
3
3
4
6
7
8
8
8
8
8
9
8
7
6
4

Dew Point (°C)

13
12
13
13
10
8
8
8
7
6
6
6
7
3
0
1
1
2
1
2
1
-1
-2
-2

Relative Humidity (%)

82
83
89
87
82
79
79
88
90
88
88
85
80
55
39
40
44
47
48
56
59
57
57
57

Pressure (mb)

1009
1008
1008
1009
1011
1013
1014
1015
1015
1017
1017
1017
1017
1015
1015
1016
1017
1018
1019
1020
1021
1021
1021
1021

Ozone (du)

297
299
303
308
308
310
312
313
316
317
317
321
328
334
341
346
347
353
354
351
353
356
362
367

Monday 20

Waxing Crescent 16%

08:14

00:18

02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 OK
08 OK
09 OK
10 OK
11 Bad
12 Bad
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 OK

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)

64
60
93
97
67
29
39
20
21
62
65
79
82
82
82
80
27
8
1
0
2
3
2
24

Low Clouds (% Sky Obscured)

64
60
75
71
50
14
25
14
21
57
46
52
20
31
5
5
0
0
0
0
1
0
0
0

Medium Clouds (% Sky Obscured)

5
8
47
20
16
12
15
6
0
0
0
21
30
27
43
57
27
5
0
0
0
0
2
18

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
1
2
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 (%)

1
1
0
6
8
5
4
6
4
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
6
6
8
7
9
12
12
12
13
13
13
14
13
13
12
11
7
5
5
5
5
5

Chance of Frost

Temperature (°C)

6
5
4
4
6
7
8
8
9
10
11
11
12
11
11
11
10
9
7
5
4
3
3
2

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

54
52
54
59
71
84
73
56
43
40
37
37
34
34
33
33
40
45
49
53
55
54
51
54

Pressure (mb)

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

Ozone (du)

373
376
384
387
386
388
393
402
402
403
405
412
421
419
416
414
412
409
397
394
391
394
392
396

Tuesday 21

Waxing Crescent 26%

09:15

01:20

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

31
33
34
24
10
0
0
1
1
5
1
1
8
5
1
11
33
57
28
30
34
54
63
73

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
1
0
0
0
0

Medium Clouds (% Sky Obscured)

22
26
28
24
10
0
0
0
0
5
0
1
7
5
1
11
33
57
18
19
21
25
42
73

High Clouds (% Sky Obscured)

2
0
3
1
0
0
0
1
1
1
1
0
0
0
0
0
0
0
0
0
1
1
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
6
10
12

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

Chance of Frost

Temperature (°C)

1
1
1
1
0
1
3
6
8
10
11
13
14
15
16
16
16
14
11
11
10
9
10
10

Feels Like (°C)

-1
-2
-1
-1
-1
-0
3
6
7
9
10
11
11
12
14
14
14
11
7
8
7
6
5
6

Dew Point (°C)

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

Relative Humidity (%)

57
60
61
64
66
62
53
46
39
35
34
33
32
32
32
33
40
45
46
53
52
53
51
53

Pressure (mb)

1027
1028
1028
1028
1029
1029
1029
1029
1029
1028
1027
1025
1024
1023
1022
1021
1020
1020
1020
1020
1020
1020
1019
1018

Ozone (du)

400
397
389
387
387
387
386
386
383
382
379
378
377
374
372
371
370
367
363
364
364
363
362
361

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 Bad
19 Bad
20 Bad
21 Bad
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)

56
56
48
67
82
100
100
100
100
93
87
84
79
94
99
70
62
50
46
33
15
19
28
30

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
1
3
4
10
20
29
33
42
51
34
20
5
4
2
0
0
0
0

Medium Clouds (% Sky Obscured)

48
56
43
67
82
97
98
99
100
71
58
45
52
58
73
64
54
39
28
13
0
9
16
20

High Clouds (% Sky Obscured)

0
1
10
43
71
98
100
100
100
82
54
4
1
0
4
0
0
0
0
0
0
0
3
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
5
9
9
9
9
8
9
9
9
7
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 (%)

15
13
7
6
5
9
14
35
32
9
6
4
22
33
28
25
25
12
11
13
1
8
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
7
6
5
6
7
8
10
12
14
15
16
17
18
18
17
18
17
16
14
13
13
13
13

Dew Point (°C)

2
2
3
3
5
6
6
8
11
14
14
15
16
15
16
15
14
14
14
14
13
12
12
12

Relative Humidity (%)

56
59
63
69
73
73
72
72
83
93
90
88
84
75
81
82
78
82
92
92
90
90
92
92

Pressure (mb)

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

Ozone (du)

360
360
359
362
363
365
368
367
367
367
365
362
362
361
363
364
364
361
358
357
357
358
357
356

Thursday 23

First Quarter 49%

11:38

02:10

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

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)

17
10
5
35
5
6
12
30
30
30
25
4
22
39
54
46
40
32
35
42
49
48
51
42

Low Clouds (% Sky Obscured)

1
2
2
2
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

13
7
0
0
0
0
0
0
0
0
0
0
2
2
2
1
1
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

2
4
5
35
5
6
12
30
30
30
25
4
22
39
54
45
37
29
20
11
6
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
13
3
2
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
4
4
4
6
7
8
8
10
10
10
8
5
4
3
3
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
13
13
13
10
12
13
14
16
17
17
18
21
20
20
20
20
20
20
15
14
14
14
13

Dew Point (°C)

11
11
11
10
10
10
10
11
12
13
12
11
10
10
9
10
9
9
9
8
8
7
7
7

Relative Humidity (%)

93
95
96
95
95
96
87
82
75
72
64
55
50
50
48
48
52
56
62
65
65
67
70
73

Pressure (mb)

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

Ozone (du)

357
355
354
355
357
357
356
356
354
354
353
352
352
352
351
351
352
352
352
353
353
353
354
355

Friday 24

Waxing Gibbous 60%

12:51

02:49

02 OK
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 OK
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)

35
12
8
6
3
0
0
0
0
0
0
5
10
20
35
54
57
46
64
79
94
87
79
71

Low Clouds (% Sky Obscured)

5
0
0
0
0
0
0
0
0
0
0
0
0
0
4
3
9
16
47
70
88
65
47
32

Medium Clouds (% Sky Obscured)

0
0
0
1
1
0
0
0
0
0
0
0
10
20
35
52
38
24
43
61
73
66
61
57

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
5
10
20
35
54
41
17
13
10
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
8
7
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

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

Precipitation Probability (%)

0
0
0
0
1
0
1
0
0
6
9
10
23
30
36
39
41
49
50
45
34
36
33
25

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

3
2
2
1
1
1
2
2
5
6
7
7
8
7
6
7
6
6
6
7
9
10
9
8

Chance of Frost

Temperature (°C)

11
11
11
10
11
13
13
17
19
21
22
22
23
22
22
21
19
18
16
14
13
11
10
10

Feels Like (°C)

13
10
10
10
11
11
10
16
17
18
19
19
20
24
23
22
22
22
21
15
14
14
12
12

Dew Point (°C)

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

Relative Humidity (%)

75
76
76
77
75
72
70
66
61
59
56
55
55
58
62
67
72
79
87
87
87
88
88
90

Pressure (mb)

1012
1012
1011
1011
1011
1011
1011
1011
1010
1010
1009
1009
1008
1008
1007
1007
1007
1008
1009
1010
1011
1012
1013
1013

Ozone (du)

356
356
356
356
356
356
355
354
353
352
351
351
351
352
353
354
354
354
354
353
353
352
352
352

Saturday 25

Waxing Gibbous 71%

14:01

03:21

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)

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: 19/04/26 02:54:52. Forecast: 19/04/26 to 25/04/26. Timezone: UTC-4.00