Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 23

First Quarter 49%

12:51

02:49

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

38
37
40
47
58
26
62
100
30
48
69
32
49
64
76
78
24
8
6
5
8
5
42
33

Low Clouds (% Sky Obscured)

7
10
0
0
0
0
0
8
27
38
68
0
0
2
0
0
0
0
0
0
0
4
4
18

Medium Clouds (% Sky Obscured)

0
1
3
6
0
0
0
0
0
3
10
20
16
19
15
13
17
8
4
1
2
0
12
5

High Clouds (% Sky Obscured)

8
23
20
42
52
26
62
100
11
28
3
2
12
19
37
45
4
0
0
4
3
3
3
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 (%)

0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
2
0
1
1
5
23
37
38

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

Chance of Frost

Temperature (°C)

27
27
27
26
26
24
20
17
17
17
16
15
15
15
13
13
13
14
17
19
21
23
25
26

Feels Like (°C)

27
27
25
26
26
23
21
17
17
17
15
14
15
14
12
11
11
15
19
22
23
24
26
28

Dew Point (°C)

14
14
14
16
17
16
13
10
11
11
10
10
10
10
8
8
8
8
9
12
14
15
16
16

Relative Humidity (%)

46
44
44
51
60
63
65
64
67
68
68
68
74
74
72
74
74
66
61
61
61
58
57
54

Pressure (mb)

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

Ozone (du)

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

Friday 24

Waxing Gibbous 60%

14:01

03:21

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 OK
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

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)

49
71
56
78
54
49
38
50
57
85
77
69
78
78
87
86
97
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

21
53
15
74
2
0
3
2
2
1
1
7
2
5
10
14
36
14
44
26
47
50
37
43

Medium Clouds (% Sky Obscured)

13
49
16
78
2
22
16
26
23
70
60
32
56
61
75
52
80
65
71
83
82
65
61
54

High Clouds (% Sky Obscured)

2
2
6
25
50
45
20
17
32
71
26
41
57
8
22
60
78
60
58
100
91
99
100
100

ISS Passover

Visibility (miles)

9
9
6
2
2
9
9
9
9
6
8
9
9
9
9
9
9
9
5
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
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
Light Rain
None
None
None
None
None

Precipitation Probability (%)

24
51
63
77
54
12
4
14
30
29
12
1
0
1
4
5
7
38
71
39
35
46
35
30

Precipitation Amount (mm)

0
0
0.4
0.7
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0.6
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

26
26
26
25
22
20
19
17
17
16
16
15
14
13
13
12
12
13
14
15
16
15
15
17

Feels Like (°C)

27
27
26
27
21
21
17
17
16
15
14
14
13
11
12
9
10
10
12
14
15
15
15
17

Dew Point (°C)

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

Relative Humidity (%)

51
50
63
72
85
88
88
90
90
92
92
92
92
92
89
88
89
86
89
95
90
90
92
77

Pressure (mb)

1008
1008
1007
1008
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1010
1010
1010
1010
1009
1009

Ozone (du)

351
350
349
348
349
350
352
353
352
351
350
350
351
351
351
350
349
350
350
352
354
354
355
354

Saturday 25

Waxing Gibbous 71%

No Rise

03:47

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
14 Bad

Sun - Rise: 06:13, Set: 19:55, Transit: 13:05. Moon - Rise: No Rise, 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
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
95

Low Clouds (% Sky Obscured)

51
51
46
42
47
69
81
89
96
97
97
99
100
100
100
100
100
100
100
100
100
100
100
92

Medium Clouds (% Sky Obscured)

59
75
95
100
100
100
88
95
95
85
70
65
50
45
40
35
35
40
45
50
45
65
65
43

High Clouds (% Sky Obscured)

96
100
100
100
100
99
100
100
99
90
95
95
90
85
85
90
85
80
82
81
88
91
98
79

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 (%)

18
27
12
2
3
8
20
12
16
20
12
11
20
18
9
5
3
1
0
0
1
6
8
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
9
10
10
10
8
8
8
7
7
7
7
8
8
9
9
8
8
8
9
8
8
7
7

Chance of Frost

Temperature (°C)

17
17
15
14
13
12
11
11
10
10
10
9
9
9
8
8
8
8
8
8
9
10
11
12

Feels Like (°C)

17
15
12
11
10
10
9
8
9
8
8
7
6
6
5
4
5
5
5
5
6
7
9
9

Dew Point (°C)

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

Relative Humidity (%)

73
78
86
89
90
90
90
88
91
90
90
90
91
90
90
88
88
87
85
82
77
69
65
63

Pressure (mb)

1009
1009
1009
1010
1010
1011
1012
1012
1013
1013
1013
1014
1014
1015
1015
1016
1017
1018
1019
1019
1019
1020
1020
1019

Ozone (du)

354
354
355
355
357
358
361
363
367
371
373
374
374
377
377
377
378
377
379
377
375
375
372
371

Sunday 26

Waxing Gibbous 80%

15:08

04:10

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

Sun - Rise: 06:12, Set: 19:56, Transit: 13:05. Moon - Rise: 15:08, 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)

90
85
90
95
100
100
100
100
46
20
0
4
50
49
33
5
40
20
20
15
10
10
15
20

Low Clouds (% Sky Obscured)

83
75
75
76
76
61
46
30
20
10
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

22
0
0
0
0
0
20
20
1
0
0
0
0
0
0
0
0
0
0
0
0
1
11
20

High Clouds (% Sky Obscured)

66
49
66
84
100
100
100
100
37
13
0
4
50
49
33
5
40
20
20
15
10
10
15
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
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
7
7
7
6
6
5
5
4
4
4
4
4
5
4
5
5
6
7
7
8
9
9
9

Chance of Frost

Temperature (°C)

12
13
13
13
12
12
11
10
9
8
8
7
7
6
5
6
6
8
9
12
14
15
16
17

Feels Like (°C)

10
10
10
10
9
9
8
8
6
8
8
7
6
3
3
4
5
5
6
8
10
11
12
13

Dew Point (°C)

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

Relative Humidity (%)

61
62
65
65
66
67
68
68
80
84
84
85
87
86
85
85
81
71
62
55
50
46
45
45

Pressure (mb)

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

Ozone (du)

370
369
369
368
367
368
364
363
363
361
363
359
356
357
356
354
354
355
354
354
355
354
355
351

Monday 27

Waxing Gibbous 88%

16:13

04:32

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

Sun - Rise: 06:11, Set: 19:57, Transit: 13:04. Moon - Rise: 16:13, 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)

30
31
55
60
59
44
37
29
10
12
34
82
81
80
82
84
86
90
95
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
4
9
13
24
35
46
40
40
55
57
58
50
30

Medium Clouds (% Sky Obscured)

30
30
34
24
15
10
5
0
0
0
0
54
40
24
17
9
2
4
7
6
37
69
100
90

High Clouds (% Sky Obscured)

30
16
55
60
59
44
37
29
6
10
25
53
65
76
76
77
81
90
95
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
8
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
Very Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
4
9
33
40
50
60

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
0.2
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
18
18
16
15
14
13
11
10
9
8
8
8
7
7
8
8
9
11
12
14
15
15
14

Feels Like (°C)

13
14
14
13
11
10
9
7
6
6
6
5
5
5
5
5
4
5
8
7
9
10
11
12

Dew Point (°C)

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

Relative Humidity (%)

44
43
45
48
53
57
60
66
71
74
79
78
82
88
93
91
90
88
84
77
74
79
87
93

Pressure (mb)

1024
1023
1023
1023
1023
1023
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023
1023
1023
1022
1022
1021
1020
1020
1019

Ozone (du)

352
352
350
348
348
348
349
349
351
351
345
341
340
338
336
336
337
337
337
336
336
336
335
335

Tuesday 28

Waxing Gibbous 94%

17:16

04:53

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
14 Bad

Sun - Rise: 06:10, Set: 19:58, Transit: 13:04. Moon - Rise: 17:16, 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
100
100
100
100
99
99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
90

Low Clouds (% Sky Obscured)

0
0
1
2
3
4
4
4
18
31
44
53
63
74
72
75
89
99
99
98
96
96
95
85

Medium Clouds (% Sky Obscured)

83
71
71
71
77
77
67
48
35
23
11
27
48
68
79
90
100
100
100
100
91
81
72
58

High Clouds (% Sky Obscured)

100
100
100
100
100
91
83
74
83
91
99
100
100
100
100
100
100
100
100
100
100
100
100
90

ISS Passover

Visibility (miles)

6
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
5
7

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

Precipitation Probability (%)

72
86
85
79
67
50
35
12
21
23
24
47
68
83
66
55
48
76
94
95
95
95
95
95

Precipitation Amount (mm)

0.4
0.7
0.6
0.4
0.3
0
0
0
0
0
0
0
0.4
0.6
0.3
0
0
0.4
0.6
0.8
0.6
0.7
0.9
1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
12
13
12
12
12
11
11
12
12
12
12
12
13
13
13
13
13
14
15
15
15
15
15

Dew Point (°C)

14
14
15
15
14
13
13
13
13
13
13
13
13
13
13
13
14
14
14
15
15
15
16
17

Relative Humidity (%)

95
96
100
100
98
98
100
100
98
98
100
100
98
100
98
98
98
96
96
98
98
95
93
92

Pressure (mb)

1018
1018
1017
1017
1017
1017
1016
1016
1016
1015
1015
1014
1014
1013
1012
1012
1012
1011
1010
1010
1009
1008
1007
1006

Ozone (du)

334
333
332
333
335
336
337
338
339
340
342
343
344
345
346
348
351
354
355
357
358
360
361
363

Wednesday 29

Waxing Gibbous 98%

18:18

05:16

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

Sun - Rise: 06:08, Set: 19:59, Transit: 13:04. Moon - Rise: 18:18, Set: 05:16. Civil Dark: 20:28 - 05:39. Nautical Dark: 21:03 - 05:04. Astro Dark: 21:41 - 04:26

Total Clouds (% Sky Obscured)

82
72
53
46
40
31
18
2
4
13
21
17
10
0
2
4
6

Low Clouds (% Sky Obscured)

77
70
53
45
31
21
10
0
0
0
5
10
5
0
0
0
0

Medium Clouds (% Sky Obscured)

45
31
22
11
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

82
72
53
46
40
31
17
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

7
6
6
7
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

Precipitation Type

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

Precipitation Probability (%)

95
95
94
69
41
36
27
1
1
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

1.1
1.2
0.8
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
8
8
9
10
11
9
7
6
6
7
7
7
7
7
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
18
18
19
20
21
16
15
13
13
12
12
8
8
8
8
8

Dew Point (°C)

16
15
14
12
10
8
7
7
6
5
5
4
3
3
3
3
4

Relative Humidity (%)

84
76
70
64
60
55
57
60
63
63
63
61
62
63
63
63
65

Pressure (mb)

1006
1006
1005
1006
1006
1007
1007
1008
1009
1009
1010
1010
1010
1011
1011
1011
1012

Ozone (du)

366
369
372
376
380
383
383
384
384
381
377
374
373
372
371
370
369

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

Generated: 23/04/26 15:27:46. Forecast: 23/04/26 to 29/04/26. Timezone: UTC-4.00