Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 27

Waxing Gibbous 88%

16:21

04:39

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

Sun - Rise: 06:25, Set: 19:58, Transit: 13:12. Moon - Rise: 16:21, Set: 04:39. Civil Dark: 20:25 - 05:57. Nautical Dark: 20:58 - 05:24. Astro Dark: 21:32 - 04:50

Total Clouds (% Sky Obscured)

86
82
80
57
57
54
23
9
10
5
6
13
25
3
21
15
22
15
15
15
24
9
88
100

Low Clouds (% Sky Obscured)

33
38
39
44
48
43
18
6
8
3
5
5
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
8
13
3
15
3
5
15
40

High Clouds (% Sky Obscured)

2
13
3
3
3
5
2
3
0
5
2
13
25
3
21
15
22
15
15
15
24
6
59
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
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
5
7
9
9
9
9
9
9
8
9
9
9
8
6
6
7
7
6
6
5
4
3
4

Chance of Frost

Temperature (°C)

10
10
11
12
13
15
16
18
20
21
21
21
20
19
16
14
13
11
10
9
8
8
8
8

Feels Like (°C)

7
9
9
10
11
13
14
16
17
19
19
19
18
16
15
11
10
8
8
6
6
7
7
7

Dew Point (°C)

5
6
6
5
3
2
1
0
0
2
2
3
4
6
5
4
4
4
4
4
3
4
4
5

Relative Humidity (%)

69
77
73
62
50
42
35
30
27
28
28
31
34
41
48
50
55
62
65
70
70
77
78
79

Pressure (mb)

1022
1022
1023
1024
1024
1024
1024
1023
1022
1022
1021
1021
1021
1022
1022
1023
1024
1024
1024
1024
1023
1024
1024
1023

Ozone (du)

354
352
352
350
351
349
346
347
346
342
339
339
337
337
338
337
338
338
336
337
337
334
333
329

Tuesday 28

Waxing Gibbous 94%

17:21

05:03

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
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 06:24, Set: 19:59, Transit: 13:11. Moon - Rise: 17:21, Set: 05:03. Civil Dark: 20:26 - 05:56. Nautical Dark: 20:59 - 05:23. Astro Dark: 21:33 - 04:48

Total Clouds (% Sky Obscured)

100
100
64
100
100
100
100
100
100
100
100
100
100
91
82
78
62
59
95
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
22
0
0
4
24
42
24
31
52
30
13
16
16
24
10
26
28

Medium Clouds (% Sky Obscured)

35
29
25
60
85
100
100
98
94
58
30
43
49
60
47
33
34
25
22
25
41
94
38
51

High Clouds (% Sky Obscured)

100
100
64
100
100
100
100
100
100
100
100
50
45
51
57
50
41
53
78
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
7
28
36
6
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
2
2
2
2
3
5
5
5
4
5
5
4
3
4
3
4
4
4
4
3
3
3
4

Chance of Frost

Temperature (°C)

8
8
10
12
14
16
16
15
17
17
17
18
18
18
16
15
15
14
13
13
13
13
13
13

Feels Like (°C)

6
7
8
11
13
14
13
13
15
15
16
16
17
17
16
16
14
12
11
12
12
11
11
12

Dew Point (°C)

3
3
4
6
6
7
8
7
8
9
9
9
11
11
11
11
9
7
8
8
8
9
9
8

Relative Humidity (%)

73
69
65
63
59
57
59
57
56
58
58
56
63
65
69
73
68
65
72
75
75
76
76
75

Pressure (mb)

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

Ozone (du)

326
325
324
323
323
323
323
325
324
322
321
322
324
325
325
325
325
324
325
323
322
322
321
320

Wednesday 29

Waxing Gibbous 98%

18:21

05:29

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 Good
01 Good
02 Good
03 Good
04 Good
05 Good

Sun - Rise: 06:23, Set: 20:00, Transit: 13:11. Moon - Rise: 18:21, Set: 05:29. Civil Dark: 20:27 - 05:54. Nautical Dark: 21:00 - 05:22. Astro Dark: 21:34 - 04:47

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
100
100
97
94
82
100
70
74
75
72
10
5
1
2
4
2

Low Clouds (% Sky Obscured)

20
15
15
51
64
83
93
97
95
78
87
86
66
58
52
71
75
66
4
0
0
0
0
0

Medium Clouds (% Sky Obscured)

76
100
99
89
100
100
100
97
94
98
86
40
47
33
15
2
0
1
0
0
1
1
3
1

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
35
100
14
35
0
0
70
2
30
3
20
0
5
0
2
4
2

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
8
6
5
7
6
1
0
0
0
1
4
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
Very Light Rain
Very Light Rain
Moderate Rain
Light Rain
Moderate Rain
Light Rain
Moderate Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
5
55
95
95
95
95
92
95
62
39
40
25
6
29
14
3
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0.2
0.3
2.8
1.5
5.1
0.4
4.9
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
13
14
15
16
17
17
17
17
18
18
19
19
19
19
18
18
18
18
17
16
15
14
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
69
69
66
66
68
73
79
90
93
96
96
96
96
98
98
98
100
98
98
95
95
89
84

Pressure (mb)

1015
1015
1015
1015
1015
1014
1013
1012
1011
1010
1009
1008
1008
1008
1008
1008
1008
1008
1008
1009
1009
1009
1009
1010

Ozone (du)

318
318
317
319
319
322
323
322
321
320
320
317
320
322
325
327
331
334
337
341
348
355
364
368

Thursday 30

Waxing Gibbous 100%

19:21

05:56

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

Sun - Rise: 06:22, Set: 20:01, Transit: 13:11. Moon - Rise: 19:21, Set: 05:56. Civil Dark: 20:28 - 05:53. Nautical Dark: 21:01 - 05:20. Astro Dark: 21:36 - 04:45

Total Clouds (% Sky Obscured)

0
0
2
4
6
17
30
42
41
39
38
43
49
52
33
22
24
27
21
20
37
41
52
58

Low Clouds (% Sky Obscured)

0
0
0
0
0
2
5
7
13
18
24
16
8
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
6
34
13
7
3
0
0
0
0
4
9
18
32

High Clouds (% Sky Obscured)

0
0
2
4
6
16
26
36
30
22
18
19
31
27
10
10
9
7
5
6
9
14
42
43

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

Chance of Frost

Temperature (°C)

13
13
13
14
16
17
18
20
21
21
21
21
19
18
17
15
13
12
11
11
10
10
11
11

Feels Like (°C)

11
11
11
12
14
16
17
18
18
18
18
18
16
15
14
13
12
8
7
6
7
7
8
8

Dew Point (°C)

10
9
7
6
6
5
3
1
0
0
0
-0
-1
1
2
1
-1
-3
-3
-4
-4
-4
-3
-2

Relative Humidity (%)

81
79
69
57
52
44
36
29
25
25
25
24
26
31
38
37
38
36
36
37
37
37
39
41

Pressure (mb)

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

Ozone (du)

373
374
372
374
379
381
376
373
372
367
363
360
358
357
357
355
352
349
345
344
344
343
342
343

Friday 1

Full Moon 100%

20:22

05:56

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
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 06:21, Set: 20:01, Transit: 13:11. Moon - Rise: 20:22, Set: 05:56. Civil Dark: 20:29 - 05:52. Nautical Dark: 21:02 - 05:19. Astro Dark: 21:37 - 04:44

Total Clouds (% Sky Obscured)

70
82
79
75
73
81
90
99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
3
0
7
13
20
14
9
4
6
16
20
50
75
100
96
92
89
89
90
91
91

Medium Clouds (% Sky Obscured)

40
68
70
75
41
35
34
72
98
65
69
96
99
100
100
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

48
53
44
31
24
29
39
48
65
85
100
100
100
100
87
77
69
89
92
96
98
98
98
98

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
7
4
3
4
5
6
5
4
3
3
2
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
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Moderate Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
8
14
19
22
25
29
35
49
77
95
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.7
0.8
0.8
1.3
1.6
1.9
3.7
5.1
6.5
1.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-1
1
1
0
1
1
2
3
4
5
4
6
9
12
13
13
13
12
12
12
12
13
12
12

Relative Humidity (%)

44
48
46
38
36
33
34
37
38
40
40
46
60
86
93
93
95
95
96
96
98
98
98
96

Pressure (mb)

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

Ozone (du)

346
347
351
353
351
349
349
350
347
349
349
346
343
342
338
337
336
335
333
332
330
331
331
331

Saturday 2

Waning Gibbous 98%

21:23

06:28

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
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 06:20, Set: 20:02, Transit: 13:11. Moon - Rise: 21:23, Set: 06:28. Civil Dark: 20:30 - 05:51. Nautical Dark: 21:03 - 05:18. Astro Dark: 21:38 - 04:42

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
97
88
82
84
98
98
98
92

Low Clouds (% Sky Obscured)

92
92
95
97
100
100
100
100
100
100
100
100
100
100
100
100
97
88
82
83
70
56
42
50

Medium Clouds (% Sky Obscured)

100
100
100
94
85
89
94
100
80
58
37
48
54
64
53
45
37
38
43
45
46
47
45
53

High Clouds (% Sky Obscured)

98
98
98
99
100
70
43
7
7
7
8
38
69
95
79
66
57
51
46
54
74
86
94
62

ISS Passover

Visibility (miles)

2
2
2
2
2
2
2
2
3
5
7
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

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

Precipitation Probability (%)

95
95
95
95
95
95
95
95
86
73
59
49
36
14
12
9
3
2
2
0
0
0
0
0

Precipitation Amount (mm)

1.1
0.9
1.3
1.4
1.6
1.3
0.9
0.7
0.5
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
12
12
11
11
11
12
14
14
11
11
11
11
10
10
10
10
10
10
10
10
10
10
9

Dew Point (°C)

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

Relative Humidity (%)

98
96
98
96
96
96
96
96
96
96
95
95
95
92
92
93
93
96
96
96
98
93
88
84

Pressure (mb)

1009
1009
1009
1009
1009
1009
1009
1009
1008
1008
1009
1009
1009
1010
1011
1011
1012
1013
1013
1013
1013
1014
1014
1014

Ozone (du)

331
331
331
330
329
328
330
331
332
332
332
332
333
334
336
335
335
335
333
330
327
327
328
328

Sunday 3

Waning Gibbous 94%

22:22

07:04

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

Sun - Rise: 06:19, Set: 20:03, Transit: 13:11. Moon - Rise: 22:22, Set: 07:04. Civil Dark: 20:31 - 05:50. Nautical Dark: 21:04 - 05:17. Astro Dark: 21:39 - 04:41

Total Clouds (% Sky Obscured)

87
81
82
78
82
81
79
76
72
67
63
46
29
12
8
4
0
0
0
0

Low Clouds (% Sky Obscured)

59
67
71
76
80
76
72
69
59
48
38
26
13
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

56
61
52
58
75
65
49
40
37
41
42
30
21
9
7
3
0
0
0
0

High Clouds (% Sky Obscured)

31
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

Fog (%)

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

Precipitation Probability (%)

0
0
1
2
2
10
12
14
14
10
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
9
9
8
7
6
6
6
7
13
13
13
14
15
16
11
11
10
10
11

Dew Point (°C)

5
4
4
2
-1
-3
-4
-5
-5
-5
-5
-4
-3
-1
0
-1
-2
-2
-2
-1

Relative Humidity (%)

78
73
68
56
45
36
33
29
26
26
26
26
30
36
42
43
44
46
48
52

Pressure (mb)

1015
1016
1017
1017
1017
1018
1017
1017
1017
1016
1016
1015
1016
1016
1016
1017
1017
1018
1018
1018

Ozone (du)

329
330
330
333
335
337
337
337
337
338
340
342
342
343
343
344
345
346
345
345

Forecast for Raleigh, Wake, United States of America (35.78,-78.64)

Generated: 27/04/26 06:06:24. Forecast: 27/04/26 to 03/05/26. Timezone: UTC-4.00