Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 22

Waxing Crescent 34%

11:38

02:10

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

51
46
58
47
7
12
18
16
23
11
22
9
10
7
13
17
64
67
66
41
37
37
29
43

Low Clouds (% Sky Obscured)

6
0
0
0
0
0
0
0
23
0
0
0
0
0
1
3
46
44
61
29
31
22
23
0

Medium Clouds (% Sky Obscured)

5
4
3
2
1
0
8
10
1
3
10
3
5
3
5
7
23
12
0
15
0
0
0
9

High Clouds (% Sky Obscured)

0
0
1
1
1
7
2
2
2
3
2
2
0
2
2
2
5
5
36
3
7
23
3
22

ISS Passover

Visibility (miles)

7
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
10
5
14
13
1
3
10

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

Chance of Frost

Temperature (°C)

23
21
18
17
16
16
16
16
15
15
14
14
14
17
19
21
23
24
25
26
26
26
27
26

Feels Like (°C)

23
22
20
18
16
16
16
16
16
14
14
14
15
18
20
22
23
24
23
24
25
26
26
27

Dew Point (°C)

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

Relative Humidity (%)

75
81
83
86
86
86
87
87
85
82
84
84
83
78
73
69
64
61
63
60
57
57
57
63

Pressure (mb)

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

Ozone (du)

361
360
360
357
357
357
358
358
359
358
358
358
357
357
355
355
355
355
353
352
351
350
352
352

Thursday 23

First Quarter 49%

12:51

02:49

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

81
60
55
10
20
8
10
12
17
9
36
13
35
47
59
27
24
18
20
36
72
78
76
97

Low Clouds (% Sky Obscured)

8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
36
46
62
43
49

Medium Clouds (% Sky Obscured)

11
7
2
2
6
2
3
6
6
0
0
0
17
40
43
20
17
18
16
33
14
62
39
85

High Clouds (% Sky Obscured)

55
42
55
4
2
3
3
3
8
7
35
11
10
4
3
2
3
2
2
2
42
22
76
58

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
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
Light Rain
Light Rain
None

Precipitation Probability (%)

13
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
1
2
7
25
47
95
95
62

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1.2
1
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

25
22
19
18
17
16
15
14
14
14
13
12
12
14
16
19
21
22
24
25
25
26
24
21

Feels Like (°C)

26
22
20
17
18
17
16
14
13
13
12
11
12
13
15
17
20
23
25
27
28
26
23
20

Dew Point (°C)

20
19
17
15
15
14
13
9
9
9
7
6
6
6
6
8
10
12
13
14
15
18
22
17

Relative Humidity (%)

71
80
85
85
86
87
87
71
69
70
69
67
66
56
51
50
50
50
51
52
52
63
88
81

Pressure (mb)

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

Ozone (du)

350
350
351
351
350
351
351
351
351
352
352
353
351
351
351
352
353
352
351
351
351
349
350
349

Friday 24

Waxing Gibbous 60%

14:01

03:21

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
17 Bad
18 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)

70
70
40
51
50
47
85
100
88
95
88
95
93
100
100
100
99
95
97
98
99
100
100
100

Low Clouds (% Sky Obscured)

30
15
14
3
7
0
1
27
42
63
52
63
53
55
57
62
57
87
74
73
60
48
51
59

Medium Clouds (% Sky Obscured)

53
70
40
51
47
41
81
35
50
53
61
82
61
74
100
100
97
83
92
86
76
21
13
10

High Clouds (% Sky Obscured)

9
5
4
3
25
6
45
100
60
73
11
21
37
100
93
100
82
50
64
78
89
100
100
100

ISS Passover

Visibility (miles)

9
2
9
9
9
9
9
9
9
9
9
9
9
9
8
9
6
3
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

Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

92
95
24
23
6
12
8
11
3
2
3
2
6
32
58
92
95
95
31
24
29
19
11
7

Precipitation Amount (mm)

0.6
1.5
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
1
1.7
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
89
92
93
92
90
93
92
93
95
95
95
95
92
89
84
87
92
95
86
81
76
86
89

Pressure (mb)

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

Ozone (du)

350
350
352
353
352
351
350
348
347
347
347
347
348
348
350
349
350
351
350
352
353
356
356
359

Saturday 25

Waxing Gibbous 71%

15:08

03:47

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 OK
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 OK

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)

99
100
100
100
98
96
94
91
87
86
87
88
90
90
88
48
90
94
98
95
82
85
60
30

Low Clouds (% Sky Obscured)

67
77
86
96
88
79
70
73
77
80
80
79
72
73
71
48
56
40
23
16
8
0
0
0

Medium Clouds (% Sky Obscured)

1
1
0
0
0
0
0
0
0
1
6
20
20
2
22
0
11
8
15
38
58
85
60
27

High Clouds (% Sky Obscured)

91
92
91
99
95
89
88
73
56
45
45
60
70
71
71
10
80
89
96
47
40
38
28
13

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
1
1
0
1
1
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)

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

Chance of Frost

Temperature (°C)

17
15
14
13
12
11
11
11
11
10
11
10
11
11
12
14
15
17
18
19
20
20
20
19

Feels Like (°C)

15
12
12
11
10
10
9
10
10
9
10
9
10
10
11
13
15
16
17
17
19
21
21
21

Dew Point (°C)

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

Relative Humidity (%)

87
90
87
87
90
91
91
90
87
85
88
90
88
84
76
68
58
54
52
50
50
49
49
52

Pressure (mb)

1010
1011
1012
1013
1014
1014
1015
1015
1015
1016
1016
1017
1017
1018
1018
1018
1019
1018
1018
1017
1017
1017
1016
1017

Ozone (du)

362
364
366
366
366
367
367
368
370
370
371
374
377
378
378
379
379
380
379
381
380
378
374
371

Sunday 26

Waxing Gibbous 80%

16:13

04:10

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

Sun - Rise: 06:12, Set: 19:56, Transit: 13:05. Moon - Rise: 16:13, 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)

0
1
0
0
3
46
40
30
30
30
40
46
56
58
60
57
46
40
37
42
46
47
58
67

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
14
27
41
44
47
50
43
37
30
33
36
38
39
40

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
3
1
1
1
1
1
28
43

High Clouds (% Sky Obscured)

0
1
0
0
3
46
40
30
30
30
40
46
55
55
55
55
46
40
37
42
46
47
31
20

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
1
2
2
5
5
3
3
2
0
1
2

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)

2
3
3
3
4
4
3
3
2
3
4
5
5
7
7
7
7
7
7
7
7
7
7
8

Chance of Frost

Temperature (°C)

18
16
14
13
12
11
11
10
10
9
9
9
9
11
12
14
16
17
19
20
21
21
21
19

Feels Like (°C)

20
16
14
13
12
11
9
9
8
8
7
8
8
8
9
10
10
11
12
12
20
18
18
18

Dew Point (°C)

11
10
8
8
7
8
8
9
8
8
8
8
8
8
8
8
8
8
9
9
10
10
10
10

Relative Humidity (%)

61
65
68
70
70
79
84
88
90
91
91
93
90
83
73
68
60
56
52
48
49
50
51
55

Pressure (mb)

1017
1018
1018
1019
1019
1019
1019
1019
1020
1020
1020
1021
1021
1022
1022
1022
1022
1021
1021
1020
1020
1019
1019
1019

Ozone (du)

370
368
365
366
365
363
362
359
359
359
357
356
357
356
354
353
352
354
355
356
353
349
345
344

Monday 27

Waxing Gibbous 88%

17:16

04:32

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
17 Bad
18 Bad

Sun - Rise: 06:11, Set: 19:57, Transit: 13:04. Moon - Rise: 17:16, Set: 04:32. Civil Dark: 20:26 - 05:42. Nautical Dark: 21:01 - 05:07. Astro Dark: 21:38 - 04:30

Total Clouds (% Sky Obscured)

60
73
86
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

41
35
29
23
23
26
33
52
69
86
83
77
79
83
86
90
92
93
94
96
98
100
100
100

Medium Clouds (% Sky Obscured)

57
59
59
56
59
71
87
90
85
89
98
100
100
100
100
100
91
76
52
36
20
5
3
2

High Clouds (% Sky Obscured)

8
37
68
100
97
97
95
99
99
100
100
100
100
100
100
100
100
100
100
67
33
0
1
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
8
7
5
4
3
2
1
1
0
0
0
0
2

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

Precipitation Probability (%)

2
3
4
4
3
2
0
23
31
37
60
81
95
95
95
95
95
95
95
95
94
57
51
53

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.7
1
1.2
1.3
1.5
1.6
1.5
1
0.5
0.2
0
0

Wind Speed/Direction (mph)

9
9
9
9
9
10
10
10
10
10
10
10
11
11
11
10
10
10
9
8
8
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

19
19
11
10
10
10
9
8
7
7
8
8
8
8
10
10
11
10
11
11
13
14
15
15

Dew Point (°C)

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

Relative Humidity (%)

60
65
69
71
76
77
80
84
87
91
95
95
95
96
96
98
98
98
98
96
98
98
96
96

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1018
1018
1018
1017
1017
1016
1016
1015
1015
1014
1014
1014
1013
1013

Ozone (du)

343
341
343
344
345
342
339
336
335
333
331
333
335
336
339
341
344
347
351
354
359
363
367
368

Tuesday 28

Waxing Gibbous 94%

18:18

04:53

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: 06:10, Set: 19:58, Transit: 13:04. Moon - Rise: 18:18, Set: 04:53. Civil Dark: 20:27 - 05:41. Nautical Dark: 21:02 - 05:06. Astro Dark: 21:39 - 04:28

Total Clouds (% Sky Obscured)

100
100
99
99
90
81
73
57
57
81
86
90
90
90
85
76
55
55
65

Low Clouds (% Sky Obscured)

100
99
97
96
90
81
73
57
57
81
86
90
90
90
85
76
55
55
26

Medium Clouds (% Sky Obscured)

3
13
27
38
47
53
61
48
35
25
24
12
11
11
10
10
6
3
2

High Clouds (% Sky Obscured)

1
33
66
99
90
81
73
57
33
0
0
0
0
0
0
0
17
36
51

ISS Passover

Visibility (miles)

3
4
6
8
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

Precipitation Type

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

Precipitation Probability (%)

63
66
67
64
58
56
56
49
39
10
7
2
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

6
6
6
8
10
9
9
8
8
8
8
8
8
8
8
9
10
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
15
15
16
15
15
15
15
9
9
9
8
8
8
9
10
10
10
11

Dew Point (°C)

16
15
14
13
12
11
9
9
8
8
7
7
7
6
6
5
4
4
5

Relative Humidity (%)

98
98
95
92
89
89
87
88
87
85
82
81
77
74
65
56
50
46
44

Pressure (mb)

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

Ozone (du)

368
368
370
373
375
379
384
389
390
392
393
393
394
394
388
382
375
372
368

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

Generated: 22/04/26 19:56:06. Forecast: 22/04/26 to 28/04/26. Timezone: UTC-4.00