Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 26

Waxing Gibbous 80%

15:08

03:47

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 Bad
23 OK
00 Good
01 Good

Sun - Rise: 06:13, Set: 19:56, Transit: 13:05. Moon - Rise: 15:08, Set: 03:47. Civil Dark: 20:25 - 05:45. Nautical Dark: 20:59 - 05:10. Astro Dark: 21:36 - 04:33

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
99
95
93
85
82
78
85
81
85
90
90
87
53
32
0
0

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
99
95
93
85
82
78
85
79
84
89
90
87
51
25
0
0

Medium Clouds (% Sky Obscured)

17
11
5
6
17
17
21
10
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

86
78
14
1
3
19
15
1
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
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 (%)

37
0
6
11
0
0
0
0
0
13
2
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)

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

Chance of Frost

Temperature (°C)

7
6
6
7
7
6
7
7
8
8
9
11
13
14
15
15
15
15
13
12
11
11
11
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
91
91
91
88
90
87
85
85
81
71
68
64
63
65
69
70
71
72
72
78
83
85

Pressure (mb)

1014
1015
1016
1016
1016
1017
1018
1019
1020
1020
1020
1020
1020
1019
1019
1019
1020
1020
1021
1022
1022
1023
1023
1023

Ozone (du)

363
364
366
367
369
369
372
377
378
379
378
378
378
376
374
376
377
378
376
376
377
377
376
374

Monday 27

Waxing Gibbous 88%

16:13

04:10

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

Sun - Rise: 06:12, Set: 19:57, Transit: 13:05. Moon - Rise: 16:13, Set: 04:10. Civil Dark: 20:26 - 05:43. Nautical Dark: 21:01 - 05:09. Astro Dark: 21:38 - 04:31

Total Clouds (% Sky Obscured)

2
2
1
2
2
0
0
0
3
0
2
4
4
6
0
14
4
94
44
56
16
49
19
24

Low 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

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
47
0
18

High Clouds (% Sky Obscured)

2
2
1
2
2
0
0
0
3
0
2
4
3
3
0
8
3
94
44
56
16
40
19
9

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)

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

Chance of Frost

Temperature (°C)

8
8
7
6
6
6
8
11
13
15
16
17
18
19
19
19
18
17
15
13
13
11
10
9

Feels Like (°C)

8
7
6
6
5
5
8
11
13
15
16
17
17
18
19
18
17
17
12
12
10
9
9
8

Dew Point (°C)

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

Relative Humidity (%)

85
87
88
88
88
86
73
65
56
51
45
42
40
39
41
41
48
55
57
60
66
68
72
72

Pressure (mb)

1023
1023
1023
1024
1024
1025
1025
1026
1026
1026
1025
1024
1024
1023
1023
1023
1023
1023
1024
1024
1024
1024
1024
1024

Ozone (du)

373
372
370
369
368
368
369
369
371
369
368
367
362
364
366
364
362
359
357
356
355
355
350
348

Tuesday 28

Waxing Gibbous 94%

17:16

04:32

02 Bad
03 OK
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 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 06:11, Set: 19:58, Transit: 13:04. Moon - Rise: 17:16, Set: 04:32. Civil Dark: 20:27 - 05:42. Nautical Dark: 21:02 - 05:07. Astro Dark: 21:39 - 04:30

Total Clouds (% Sky Obscured)

68
35
70
98
100
100
100
100
100
100
100
100
100
100
100
99
100
100
96
91
81
89
93
97

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
3
65
43
73
95
96
100
100
94
85
72
78
82
86

Medium Clouds (% Sky Obscured)

17
22
30
14
0
0
0
30
100
100
100
91
75
56
100
93
33
30
27
25
18
17
22
22

High Clouds (% Sky Obscured)

40
14
56
96
100
100
100
100
100
100
100
100
100
100
92
1
0
0
0
0
0
16
33
50

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
3
14
1
1
2
14
32
9
2
1
2
1
1
3
11

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

Chance of Frost

Temperature (°C)

8
8
7
7
7
7
9
11
13
14
15
15
15
15
16
15
14
14
14
13
13
12
12
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
77
79
81
81
79
70
60
53
49
45
44
45
51
47
55
56
58
60
63
66
66
71
75

Pressure (mb)

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

Ozone (du)

347
345
346
343
342
344
341
340
341
339
338
337
338
335
337
334
336
338
339
340
339
343
346
343

Wednesday 29

Waxing Gibbous 98%

18:18

04:53

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 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 06:10, Set: 19:59, Transit: 13:04. Moon - Rise: 18:18, Set: 04:53. Civil Dark: 20:28 - 05:41. Nautical Dark: 21:03 - 05:06. Astro Dark: 21:41 - 04:28

Total Clouds (% Sky Obscured)

98
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
92
84
75
73
73
73

Low Clouds (% Sky Obscured)

88
90
92
86
79
73
74
74
75
82
91
98
99
99
100
100
100
100
87
73
60
62
64
67

Medium Clouds (% Sky Obscured)

34
46
58
65
78
75
100
100
100
99
99
98
83
70
40
39
25
0
5
10
15
10
5
0

High Clouds (% Sky Obscured)

73
87
100
100
100
100
100
100
100
82
73
70
68
0
2
68
70
2
53
0
0
3
5
7

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
5
9
1
5
9
3
0
0
8
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
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

2
3
0
1
0
0
6
24
53
56
74
95
95
87
82
95
90
29
13
12
7
6
4
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.2
0.2
0.4
0.6
1.1
0.3
0.3
1.7
0.6
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
4
4
4
5
6
7
8
9
9
9
9
9
9
10
8
5
4
3
3
6
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
9
9
9
9
10
10
10
10
12
12
12
12
12
12
13
15
14
13
12
9
7
7
6

Dew Point (°C)

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

Relative Humidity (%)

77
80
84
81
83
86
81
73
75
83
87
93
93
98
95
96
98
98
98
98
92
92
90
90

Pressure (mb)

1016
1016
1015
1015
1014
1014
1013
1013
1012
1011
1010
1009
1008
1007
1006
1005
1005
1006
1006
1007
1007
1008
1008
1009

Ozone (du)

340
344
345
344
346
349
351
358
360
361
362
355
361
370
375
373
376
385
384
391
391
389
391
393

Thursday 30

Waxing Gibbous 100%

19:21

05:16

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

Sun - Rise: 06:08, Set: 20:00, Transit: 13:04. Moon - Rise: 19:21, Set: 05:16. Civil Dark: 20:29 - 05:39. Nautical Dark: 21:04 - 05:04. Astro Dark: 21:42 - 04:26

Total Clouds (% Sky Obscured)

79
87
91
95
97
61
52
33
14
16
19
21
31
23
19
18
15
13
10
6
3
4
5
4

Low Clouds (% Sky Obscured)

44
22
5
5
5
0
0
0
0
8
15
21
31
23
19
18
12
0
0
1
2
3
3
3

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
5
11
14
15
14
12
5
2
0
1
1
2
4
2
0
0
0
0

High Clouds (% Sky Obscured)

12
19
30
32
33
29
26
13
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
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
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
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
84
84
80
77
73
69
64
57
52
48
46
45
47
48
49
50
50
51
53
54
57
60
62

Pressure (mb)

1009
1009
1009
1010
1010
1011
1012
1012
1012
1012
1012
1011
1011
1010
1010
1010
1010
1011
1012
1012
1013
1013
1013
1014

Ozone (du)

394
390
390
391
393
391
392
393
393
392
392
394
396
396
396
396
395
395
394
394
394
395
395
395

Friday 1

Full Moon 100%

20:24

05:41

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

Sun - Rise: 06:07, Set: 20:01, Transit: 13:04. Moon - Rise: 20:24, Set: 05:41. Civil Dark: 20:30 - 05:38. Nautical Dark: 21:06 - 05:03. Astro Dark: 21:44 - 04:25

Total Clouds (% Sky Obscured)

5
4
5
3
2
0
24
47
71
77
84
86
80
71
60
37
17
9
4
3
2
2
2
1

Low Clouds (% Sky Obscured)

2
0
0
0
0
0
0
0
0
15
30
45
42
40
36
35
17
9
2
2
2
2
2
1

Medium Clouds (% Sky Obscured)

1
2
4
3
1
0
14
19
18
11
8
4
0
0
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
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
8
12
16
18
19
16
21
22
18
20
17
3
3
2
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)

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

Chance of Frost

Temperature (°C)

5
4
4
3
4
5
5
6
8
10
11
12
13
14
14
14
13
11
9
8
7
6
6
5

Feels Like (°C)

3
-0
-1
-1
0
-1
-1
1
1
1
2
3
3
8
8
8
8
8
8
4
4
4
4
4

Dew Point (°C)

-2
-2
-2
-2
-1
-1
-1
-2
-2
-2
-1
-1
0
1
2
3
2
0
-1
-1
-2
-2
-2
-2

Relative Humidity (%)

65
67
69
69
68
66
64
56
50
44
42
41
40
41
44
46
47
48
48
51
53
56
59
61

Pressure (mb)

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

Ozone (du)

395
392
389
386
386
387
388
389
390
390
391
392
393
391
389
388
385
381
378
378
377
376
375
374

Saturday 2

Waning Gibbous 99%

21:27

06:10

Sun - Rise: 06:06, Set: 20:02, Transit: 13:04. Moon - Rise: 21:27, Set: 06:10. Civil Dark: 20:31 - 05:37. Nautical Dark: 21:07 - 05:01. Astro Dark: 21:45 - 04:23

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: 26/04/26 01:43:10. Forecast: 26/04/26 to 02/05/26. Timezone: UTC-4.00