Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 26

Waxing Gibbous 80%

No Rise

04:10

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

Sun - Rise: 06:12, Set: 19:56, Transit: 13:05. Moon - Rise: No Rise, 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)

94
88
92
93
91
85
60
11
0
0
0
2
0
0
7
3
3
0
4
12
13
14
9
28

Low Clouds (% Sky Obscured)

92
88
89
93
91
85
60
8
0
0
0
0
0
0
0
0
0
0
4
12
13
14
6
2

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)

0
0
0
0
0
0
0
0
0
0
0
2
0
0
6
2
2
0
0
0
0
1
3
26

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)

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

Chance of Frost

Temperature (°C)

13
14
14
14
13
12
11
10
9
9
8
7
7
6
6
6
8
12
14
16
17
18
19
19

Feels Like (°C)

10
11
11
11
10
9
9
8
9
9
8
7
6
6
6
6
8
12
14
15
17
17
18
19

Dew Point (°C)

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

Relative Humidity (%)

65
70
70
68
70
72
73
76
84
87
90
90
90
90
90
85
74
66
57
51
46
43
41
41

Pressure (mb)

1019
1019
1020
1020
1021
1022
1022
1023
1023
1023
1023
1023
1023
1023
1024
1024
1025
1026
1026
1026
1025
1025
1024
1023

Ozone (du)

377
375
376
376
374
373
373
374
375
374
371
368
368
366
362
361
363
366
366
365
362
362
363
361

Monday 27

Waxing Gibbous 88%

16:13

04:32

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

17
45
29
13
27
39
42
36
19
5
62
58
55
33
59
78
100
97
100
100
100
100
100
100

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
30
72
90

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
31
35
23
0
0
16
15
50
70
76
95
92
100

High Clouds (% Sky Obscured)

11
30
20
11
27
39
42
36
19
4
62
57
55
23
55
78
100
94
100
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
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
3
13
26
17
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)

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

Chance of Frost

Temperature (°C)

19
19
19
18
15
13
12
11
10
10
8
8
8
7
7
7
9
12
13
15
16
16
16
16

Feels Like (°C)

19
18
18
17
14
11
9
7
7
9
7
6
7
7
7
6
6
9
10
11
12
12
12
13

Dew Point (°C)

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

Relative Humidity (%)

40
41
47
52
55
57
61
66
66
67
68
68
70
71
71
73
68
62
54
50
44
41
39
38

Pressure (mb)

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

Ozone (du)

360
359
356
354
353
351
352
353
351
348
347
346
343
343
344
344
344
340
337
335
335
335
333
331

Tuesday 28

Waxing Gibbous 94%

17:16

04:53

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

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
98
92
99
53
45
84
89
53
68
94
92
100
100
100
100
100
100
100
100
100
99
99

Low Clouds (% Sky Obscured)

99
98
96
91
99
53
45
56
58
53
65
46
44
44
47
52
40
61
21
55
54
46
37
56

Medium Clouds (% Sky Obscured)

100
98
84
47
42
0
0
0
0
0
15
27
61
72
45
51
65
53
94
100
100
98
90
97

High Clouds (% Sky Obscured)

77
100
0
0
0
0
1
39
47
7
7
76
79
100
100
100
100
100
100
100
100
100
91
83

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

Precipitation Probability (%)

40
51
52
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
11
71
56
65

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

44
52
53
60
61
63
71
68
65
65
68
73
84
85
85
81
76
73
65
64
63
58
55
56

Pressure (mb)

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

Ozone (du)

330
330
329
330
332
335
339
348
343
339
338
338
336
337
338
336
336
336
335
333
332
332
334
334

Wednesday 29

Waxing Gibbous 98%

18:18

05:16

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 OK
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

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)

98
99
99
100
100
100
100
87
71
57
58
57
64
58
39
18
62
61
63
47
58
63
56
60

Low Clouds (% Sky Obscured)

43
60
80
100
99
99
98
83
67
52
51
50
49
37
26
14
19
26
30
31
36
41
27
14

Medium Clouds (% Sky Obscured)

95
94
89
69
73
62
50
40
26
1
0
0
0
7
7
1
24
20
0
0
0
0
16
31

High Clouds (% Sky Obscured)

74
43
35
13
45
72
100
72
43
0
0
0
0
2
3
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
4
2
0
0
0
0
0
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

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

Precipitation Probability (%)

77
70
68
53
62
82
78
26
17
19
21
28
7
8
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

8
8
8
9
9
10
11
12
12
12
12
11
10
8
7
7
7
7
7
7
6
6
6
7

Relative Humidity (%)

59
62
66
73
77
84
93
100
98
98
100
98
93
93
91
88
84
77
72
63
56
54
54
58

Pressure (mb)

1008
1007
1007
1007
1007
1007
1006
1006
1006
1006
1005
1005
1006
1007
1008
1009
1009
1010
1010
1010
1010
1010
1009
1010

Ozone (du)

335
333
335
341
352
357
364
371
372
370
367
368
371
369
370
373
375
376
377
376
379
380
379
379

Thursday 30

Waxing Gibbous 100%

19:21

05:41

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

Sun - Rise: 06:07, Set: 20:00, Transit: 13:04. Moon - Rise: 19:21, Set: 05:41. Civil Dark: 20:29 - 05:38. Nautical Dark: 21:04 - 05:03. Astro Dark: 21:42 - 04:25

Total Clouds (% Sky Obscured)

52
40
22
8
7
26
10
3
2
0
0
0
0
1
1
0
7
14
23
31
37
44
63
80

Low Clouds (% Sky Obscured)

0
3
6
8
6
3
2
0
0
0
0
0
0
0
0
0
7
14
23
28
32
35
33
32

Medium Clouds (% Sky Obscured)

49
33
15
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
13
28
44
63
70

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)

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

Chance of Frost

Temperature (°C)

15
15
14
13
11
10
10
9
8
7
6
5
4
4
4
5
6
8
10
12
13
14
15
15

Feels Like (°C)

10
10
11
11
11
9
6
6
5
4
3
3
2
1
2
2
4
4
5
6
6
7
8
12

Dew Point (°C)

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

Relative Humidity (%)

56
53
55
61
67
71
59
60
61
62
65
70
72
73
73
72
66
59
52
47
45
44
42
42

Pressure (mb)

1010
1010
1011
1011
1011
1012
1013
1014
1014
1014
1014
1014
1015
1015
1015
1016
1016
1016
1016
1016
1015
1015
1014
1014

Ozone (du)

380
380
379
380
380
377
377
377
377
377
377
381
383
384
384
383
380
380
380
380
381
382
383
384

Friday 1

Full Moon 100%

20:24

06:10

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
15 Bad

Sun - Rise: 06:06, Set: 20:01, Transit: 13:04. Moon - Rise: 20:24, Set: 06:10. Civil Dark: 20:30 - 05:37. Nautical Dark: 21:06 - 05:01. Astro Dark: 21:44 - 04:23

Total Clouds (% Sky Obscured)

97
98
98
100
93
88
82
79
77
55
44
30
31
47
66
89
92
96
100
100
100
100
95
88

Low Clouds (% Sky Obscured)

30
29
28
27
18
9
0
9
34
45
44
30
31
27
0
0
0
0
0
0
0
0
15
28

Medium Clouds (% Sky Obscured)

1
20
45
62
59
59
67
68
47
20
16
26
21
35
61
89
92
96
85
50
35
15
10
5

High Clouds (% Sky Obscured)

83
87
88
89
71
49
27
18
7
5
6
11
15
10
5
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
1
1
1
3
5
5
24
30
34
41
45
46
46
43
34
35
33
29
29
25
21
18
15

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

Chance of Frost

Temperature (°C)

16
16
15
14
12
12
11
11
10
10
10
9
9
8
9
9
9
8
7
6
7
7
8
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

42
42
46
49
53
55
59
64
72
80
88
88
90
93
90
87
85
85
88
90
82
77
70
59

Pressure (mb)

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

Ozone (du)

386
387
389
390
391
392
394
395
393
391
388
391
393
395
399
403
407
407
408
409
407
404
401
399

Saturday 2

Waning Gibbous 98%

21:27

06:45

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

Sun - Rise: 06:05, Set: 20:02, Transit: 13:04. Moon - Rise: 21:27, Set: 06:45. Civil Dark: 20:31 - 05:36. Nautical Dark: 21:07 - 05:00. Astro Dark: 21:45 - 04:21

Total Clouds (% Sky Obscured)

75
58
45
31
22
13
4
4
3
4
4
4
0
0
0
0
7
13
17
16
16
16

Low Clouds (% Sky Obscured)

39
34
30
25
17
8
0
0
0
0
0
0
0
0
0
0
7
13
17
16
16
16

Medium Clouds (% Sky Obscured)

0
0
0
5
5
13
4
4
3
4
4
2
0
0
0
0
0
0
0
1
1
2

High Clouds (% Sky Obscured)

0
30
45
31
22
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

Fog (%)

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

Precipitation Probability (%)

10
9
7
4
5
5
1
2
2
0
1
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

11
13
12
11
9
9
8
7
6
5
4
4
4
3
5
6
7
9
11
13
14
15

Feels Like (°C)

5
6
6
8
8
6
6
5
5
5
5
2
2
2
2
2
2
6
7
7
8
8

Dew Point (°C)

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

Relative Humidity (%)

49
41
44
47
50
52
53
55
59
62
67
68
69
72
67
62
59
54
50
44
43
41

Pressure (mb)

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

Ozone (du)

396
393
390
386
383
384
386
387
387
386
386
385
383
381
381
382
382
382
383
383
383
383

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

Generated: 26/04/26 16:06:48. Forecast: 26/04/26 to 02/05/26. Timezone: UTC-4.00