Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 17

New Moon 0%

06:44

20:27

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

Sun - Rise: 06:24, Set: 19:47, Transit: 13:06. Moon - Rise: 06:44, Set: 20:27. Civil Dark: 20:15 - 05:56. Nautical Dark: 20:49 - 05:23. Astro Dark: 21:24 - 04:47

Total Clouds (% Sky Obscured)

62
69
40
29
27
14
0
33
38
34
6
19
37
55
55
57
4
17
17
12
19
55
26
81

Low Clouds (% Sky Obscured)

62
65
40
0
0
0
0
0
0
0
0
0
0
0
0
0
0
10
13
0
8
7
0
0

Medium Clouds (% Sky Obscured)

0
8
8
4
11
8
0
0
0
0
0
0
0
0
0
0
2
10
2
0
3
0
0
15

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
29
31
30
6
14
18
35
30
38
0
0
2
11
7
46
19
57

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)

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

Chance of Frost

Temperature (°C)

26
25
26
26
25
25
23
20
18
18
17
17
16
16
15
15
14
14
16
18
20
21
23
24

Feels Like (°C)

25
23
24
25
26
26
24
21
18
18
18
18
17
16
15
15
14
16
17
18
20
21
22
23

Dew Point (°C)

14
14
18
16
17
18
17
15
14
14
14
14
13
13
13
12
12
12
13
13
14
14
14
14

Relative Humidity (%)

49
52
61
56
59
66
70
72
76
78
79
81
82
82
83
84
87
89
82
76
70
63
57
52

Pressure (mb)

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

Ozone (du)

326
327
329
332
329
329
329
328
326
330
328
327
325
323
320
319
319
319
319
317
316
317
315
312

Saturday 18

Waxing Crescent 3%

07:24

21:46

14 OK
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

Sun - Rise: 06:23, Set: 19:48, Transit: 13:06. Moon - Rise: 07:24, Set: 21:46. Civil Dark: 20:16 - 05:55. Nautical Dark: 20:50 - 05:21. Astro Dark: 21:25 - 04:45

Total Clouds (% Sky Obscured)

37
76
67
89
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

15
33
33
10
4
60
27
55
53
23
5
30
50
10
89
100
100
71
35
40
20
25
15
42

Medium Clouds (% Sky Obscured)

12
32
23
24
31
45
29
90
95
89
98
96
100
96
100
100
75
97
100
88
71
98
79
40

High Clouds (% Sky Obscured)

19
40
15
88
100
98
100
100
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
2
7
9
5
9
9
9
9
9
9
6
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
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
Light Rain
None

Precipitation Probability (%)

0
0
0
0
0
0
6
10
7
4
20
72
95
84
72
36
34
64
88
67
69
57
59
11

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.4
1.1
0.3
0.3
0
0
0.3
0.7
0.2
0.3
0
0.4
0

Wind Speed/Direction (mph)

10
11
10
10
13
11
11
11
9
5
7
4
4
3
3
7
18
16
14
14
15
12
13
10

Chance of Frost

Temperature (°C)

25
26
26
26
25
23
21
19
18
18
17
16
16
15
15
15
13
11
10
9
10
9
9
10

Feels Like (°C)

24
25
25
25
23
20
18
17
17
16
15
16
15
15
16
13
8
6
5
4
3
3
4
6

Dew Point (°C)

14
12
12
13
15
14
12
13
13
13
13
13
14
14
14
14
11
9
8
7
6
4
6
6

Relative Humidity (%)

48
43
40
44
53
57
58
68
71
73
77
82
87
95
95
95
87
84
85
84
74
73
81
78

Pressure (mb)

1013
1012
1011
1010
1010
1010
1010
1010
1011
1011
1010
1010
1009
1008
1008
1009
1011
1013
1014
1014
1016
1017
1016
1016

Ozone (du)

310
308
307
307
305
305
308
308
310
310
308
306
305
305
307
310
312
313
316
317
318
320
323
325

Sunday 19

Waxing Crescent 8%

08:14

23:05

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

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)

100
86
86
19
21
27
28
27
27
0
32
41
48
51
35
67
35
25
35
68
56
51
38
28

Low Clouds (% Sky Obscured)

19
10
1
0
0
0
0
0
1
0
3
39
35
35
21
35
3
2
13
46
39
37
32
26

Medium Clouds (% Sky Obscured)

28
14
21
19
21
27
28
27
27
0
30
27
30
51
10
39
17
12
16
19
23
15
12
3

High Clouds (% Sky Obscured)

99
70
70
1
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
9
9
9
9
5
8
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 (%)

2
0
0
0
0
0
0
0
0
0
0
1
3
7
1
0
1
3
6
22
7
11
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)

10
16
15
14
13
10
7
4
4
2
4
4
5
4
6
6
6
7
8
8
10
11
12
12

Chance of Frost

Temperature (°C)

13
15
15
15
14
13
11
10
9
8
8
7
7
6
6
6
5
5
6
7
8
10
11
11

Feels Like (°C)

8
8
9
10
10
11
10
9
9
8
7
5
4
3
2
2
1
2
2
3
2
5
5
5

Dew Point (°C)

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

Relative Humidity (%)

65
40
34
39
43
46
51
55
57
58
56
56
56
57
65
75
80
82
75
70
77
52
38
34

Pressure (mb)

1016
1015
1015
1016
1016
1017
1018
1019
1020
1020
1020
1020
1020
1020
1021
1021
1022
1023
1024
1024
1025
1025
1026
1026

Ozone (du)

330
341
346
345
347
351
354
352
351
353
357
368
374
380
385
384
384
385
385
387
390
399
408
414

Monday 20

Waxing Crescent 16%

09:15

00:18

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

32
28
21
17
3
1
3
7
8
5
2
22
7
21
8
21
28
36
45
56
47
41
43
43

Low Clouds (% Sky Obscured)

17
9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

4
4
5
4
2
0
0
0
0
0
0
0
0
3
1
14
28
36
30
15
0
15
26
33

High Clouds (% Sky Obscured)

0
0
0
0
0
0
2
5
7
4
2
22
7
21
8
10
3
4
21
56
47
17
13
11

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)

12
12
12
11
9
7
5
4
4
5
4
4
4
3
3
3
3
3
3
5
7
9
10
11

Chance of Frost

Temperature (°C)

12
12
12
12
11
10
8
7
6
4
4
4
4
3
3
2
3
4
5
8
10
13
14
15

Feels Like (°C)

6
6
5
5
6
6
6
5
3
2
2
2
1
2
1
1
2
3
4
6
6
9
12
12

Dew Point (°C)

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

Relative Humidity (%)

32
31
31
33
38
44
51
53
54
54
54
55
57
60
62
64
65
63
53
47
43
39
36
33

Pressure (mb)

1026
1025
1025
1025
1025
1026
1027
1027
1028
1028
1028
1028
1028
1028
1028
1029
1029
1029
1029
1028
1028
1027
1026
1024

Ozone (du)

417
419
413
406
399
396
393
392
391
390
389
388
386
382
380
380
381
379
371
369
368
365
366
365

Tuesday 21

Waxing Crescent 26%

10:25

01:20

14 Bad
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

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)

61
87
99
87
82
68
65
78
100
85
72
58
65
76
81
73
69
62
66
72
78
81
86
93

Low Clouds (% Sky Obscured)

0
0
3
0
0
0
0
0
0
0
0
0
0
0
0
2
3
5
16
42
68
65
61
52

Medium Clouds (% Sky Obscured)

50
45
57
59
58
55
64
78
100
81
62
44
65
76
81
66
42
18
12
6
0
0
0
0

High Clouds (% Sky Obscured)

15
56
97
82
77
67
20
37
34
67
66
55
65
67
55
36
18
3
5
7
10
40
70
93

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

Precipitation Probability (%)

0
0
0
0
0
0
1
2
1
5
10
10
34
44
52
44
33
12
15
13
8
19
21
25

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-1
1
3
4
5
5
4
4
4
3
3
4
5
5
7
8
9
10
10
12
13
14
13
13

Relative Humidity (%)

31
32
37
38
44
48
47
51
55
52
55
56
61
67
76
87
86
86
86
83
81
78
74
71

Pressure (mb)

1023
1022
1020
1019
1019
1018
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1019
1019
1019

Ozone (du)

364
364
368
370
369
368
371
371
368
363
360
358
360
360
360
360
362
363
365
365
366
366
367
367

Wednesday 22

Waxing Crescent 37%

11:38

02:10

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

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)

74
44
14
38
67
100
100
100
100
67
33
0
1
1
0
1
2
4
4
5
5
26
46
66

Low Clouds (% Sky Obscured)

32
6
0
0
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

68
36
4
36
67
100
100
100
100
67
32
0
0
0
0
1
2
4
3
3
2
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 (%)

23
19
4
4
3
0
1
1
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)

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

Chance of Frost

Temperature (°C)

18
19
19
19
18
16
14
12
12
11
10
9
9
8
7
7
7
8
9
11
14
16
17
18

Feels Like (°C)

16
17
16
16
17
16
16
11
12
12
11
11
10
7
7
7
7
6
6
9
10
11
11
13

Dew Point (°C)

12
12
11
10
9
8
6
5
4
2
2
2
1
1
-0
-1
-1
-1
-2
-1
0
0
2
3

Relative Humidity (%)

66
63
59
55
57
58
60
60
57
56
56
58
59
59
58
57
54
51
47
43
39
35
35
36

Pressure (mb)

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

Ozone (du)

368
369
371
372
372
372
372
372
371
371
371
370
370
370
371
371
370
370
369
369
369
368
367
365

Thursday 23

First Quarter 49%

12:51

02:49

14 Bad
15 Bad
16 Bad
17 OK
18 OK
19 Good
20 Good
21 Good
22 Good
23 Good
00 Good
01 Good
02 Good
03 OK
04 OK
05 Bad
06 Bad
07 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)

62
58
57
41
20
6
5
4
3
2
5
6
13
22
29
51
73
99

Low Clouds (% Sky Obscured)

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
0
0
0
0
0
0
1
0
0
0

High Clouds (% Sky Obscured)

0
0
3
12
12
4
3
3
3
2
3
1
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

Fog (%)

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

Precipitation Probability (%)

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

Wind Speed/Direction (mph)

3
3
3
3
2
3
5
5
5
5
5
5
5
5
5
5
5
5

Chance of Frost

Temperature (°C)

20
20
20
20
19
17
15
14
13
12
12
11
11
10
10
10
11
12

Feels Like (°C)

13
19
19
19
19
19
19
14
14
13
13
12
12
9
9
9
10
10

Dew Point (°C)

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

Relative Humidity (%)

37
38
39
40
43
48
52
52
52
52
57
63
69
73
76
80
81
81

Pressure (mb)

1023
1022
1022
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021

Ozone (du)

363
363
363
362
361
360
359
358
357
355
355
355
354
355
356
357
356
355

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

Generated: 17/04/26 14:00:35. Forecast: 17/04/26 to 23/04/26. Timezone: UTC-4.00