Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 27

Waxing Gibbous 86%

17:09

04:26

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

Sun - Rise: 05:40, Set: 20:26, Transit: 13:04. Moon - Rise: 17:09, Set: 04:26. Civil Dark: 21:04 - 05:02. Nautical Dark: 21:54 - 04:12. Astro Dark: 22:55 - 03:10

Total Clouds (% Sky Obscured)

24
23
29
93
93
53
34
55
86
80
100
100
100
93
100
100
93
90
93
66
36
41
33
10

Low Clouds (% Sky Obscured)

11
8
29
54
52
46
34
55
86
79
100
100
100
86
100
100
85
89
93
65
36
29
23
0

Medium Clouds (% Sky Obscured)

4
11
27
80
46
5
0
0
5
3
18
75
27
21
72
54
11
0
5
8
2
16
10
4

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
2
40
6
3
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 (%)

63
63
49
26
23
5
0
0
2
14
19
18
14
2
18
7
16
5
1
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
11
11
11
9
7
8
9
10
11
9
10
11
12
13
14
14
15
17
18
19
20
19
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
14
12
11
9
9
9
8
6
5
5
5
4
4
5
5
5
6
6
7
8
9
9
10

Dew Point (°C)

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

Relative Humidity (%)

62
69
82
90
90
93
96
95
95
93
91
93
95
93
91
90
88
88
70
59
55
55
58
63

Pressure (mb)

1022
1023
1023
1024
1025
1025
1025
1025
1025
1025
1025
1025
1025
1026
1026
1027
1027
1027
1027
1027
1026
1026
1025
1025

Ozone (du)

409
416
421
430
436
438
438
438
439
440
439
439
439
433
426
421
420
418
416
414
412
411
409
407

Tuesday 28

Waxing Gibbous 93%

No Rise

04:36

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

Sun - Rise: 05:38, Set: 20:28, Transit: 13:04. Moon - Rise: No Rise, Set: 04:36. Civil Dark: 21:06 - 05:00. Nautical Dark: 21:56 - 04:09. Astro Dark: 22:58 - 03:06

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
9
16
35
38
58
60
55
15
10
0
0
0
0
0
0
0
0
1

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
6
25
38
58
60
55
15
10
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
5
6
12
2
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
0
0
0
0
0
0
0
0
0
0
0
0
1

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)

18
17
17
16
16
15
15
15
14
15
14
13
14
15
17
18
19
21
21
22
21
21
21
20

Chance of Frost

Temperature (°C)

13
12
11
9
8
7
6
6
6
5
5
5
6
6
8
11
13
14
16
17
17
18
17
17

Feels Like (°C)

9
8
6
5
4
3
2
2
2
2
2
2
3
3
4
6
8
9
11
11
13
13
13
12

Dew Point (°C)

7
7
6
4
3
2
2
2
3
3
3
3
4
4
5
6
6
6
7
7
8
9
9
9

Relative Humidity (%)

66
70
72
72
70
70
74
78
82
83
85
86
90
85
79
72
62
55
55
52
53
55
58
60

Pressure (mb)

1026
1026
1026
1027
1027
1027
1027
1027
1027
1026
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025
1024
1024
1024
1023

Ozone (du)

405
403
401
399
398
396
395
396
396
397
397
398
401
402
402
400
400
401
401
402
403
403
402
397

Wednesday 29

Waxing Gibbous 97%

18:24

04:47

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

Sun - Rise: 05:36, Set: 20:29, Transit: 13:04. Moon - Rise: 18:24, Set: 04:47. Civil Dark: 21:08 - 04:57. Nautical Dark: 21:59 - 04:07. Astro Dark: 23:02 - 03:02

Total Clouds (% Sky Obscured)

10
10
15
15
20
25
30
35
45
43
29
23
39
34
29
10
6
2
1
2
2
1
2
2

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
0
0
0

High Clouds (% Sky Obscured)

10
10
15
15
20
25
30
35
40
42
26
23
39
34
29
10
6
2
1
1
2
1
1
1

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
8
6
5
4
3
3
3
3
2
2
3
3
2
5
6
9
11
12
13
14
14
14
14

Dew Point (°C)

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

Relative Humidity (%)

62
64
64
64
64
67
69
73
75
79
79
81
81
78
74
68
61
56
51
50
48
49
52
59

Pressure (mb)

1023
1024
1024
1025
1025
1025
1025
1025
1025
1025
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1022
1022
1021
1021

Ozone (du)

393
391
390
390
391
391
391
390
391
393
393
393
392
391
391
393
394
393
392
391
390
390
389
386

Thursday 30

Waxing Gibbous 99%

19:40

04:59

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

Sun - Rise: 05:35, Set: 20:31, Transit: 13:04. Moon - Rise: 19:40, Set: 04:59. Civil Dark: 21:10 - 04:55. Nautical Dark: 22:01 - 04:04. Astro Dark: 23:06 - 02:58

Total Clouds (% Sky Obscured)

3
3
3
3
2
3
5
22
13
24
47
6
4
4
2
1
8
15
24
45
67
84
90
95

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
2
8
15
8
25
41

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
13
18
22
28
62
75
76

High Clouds (% Sky Obscured)

1
0
0
0
1
1
1
8
4
10
28
4
4
4
2
1
2
2
3
14
51
76
84
47

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
3
2
3

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
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
28
52
63
71
58

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
15
13
11
9
8
8
7
7
6
6
6
6
7
10
13
15
17
19
21
21
21
21
19

Feels Like (°C)

14
13
12
9
8
7
7
6
5
5
5
4
6
7
10
12
15
17
19
20
20
20
19
19

Dew Point (°C)

9
9
9
8
7
6
5
5
5
4
4
4
4
5
6
8
10
12
13
15
15
18
18
18

Relative Humidity (%)

63
68
75
81
84
84
85
87
88
87
88
86
86
84
74
72
72
71
68
67
68
82
85
93

Pressure (mb)

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

Ozone (du)

381
378
375
371
372
373
372
371
372
371
370
370
370
370
370
369
369
369
368
369
368
367
365
364

Friday 1

Full Moon 100%

20:55

05:15

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
16 Bad
17 Bad

Sun - Rise: 05:33, Set: 20:33, Transit: 13:04. Moon - Rise: 20:55, Set: 05:15. Civil Dark: 21:12 - 04:53. Nautical Dark: 22:03 - 04:01. Astro Dark: 23:09 - 02:54

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
99
100
100
100
100
100
100
100
100
100
99
99
99
96
94
92
91
91

Low Clouds (% Sky Obscured)

59
63
67
72
80
83
91
60
30
0
3
7
11
76
88
100
87
75
63
62
61
61
64
69

Medium Clouds (% Sky Obscured)

100
100
100
76
100
67
71
59
44
31
69
90
94
72
50
30
52
72
89
84
79
73
64
52

High Clouds (% Sky Obscured)

100
70
64
97
100
100
95
100
100
100
100
100
100
74
52
23
37
50
46
32
17
3
8
12

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

54
43
48
56
95
95
95
86
58
23
13
4
0
0
0
0
15
23
31
41
48
59
63
63

Precipitation Amount (mm)

0.3
0
0
0
0.6
1.1
0.8
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
18
17
16
15
14
13
12
11
10
10
9
9
9
10
11
12
13
14
14
15
15
15
15

Feels Like (°C)

19
18
17
15
13
12
11
10
9
8
8
7
7
7
7
8
8
8
9
9
12
12
12
11

Dew Point (°C)

18
18
17
15
13
12
11
11
10
9
9
9
9
9
9
10
10
11
11
11
11
12
12
12

Relative Humidity (%)

93
95
95
95
90
87
89
92
93
93
95
98
96
96
93
90
87
84
83
79
80
79
79
80

Pressure (mb)

1016
1016
1016
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1014
1014
1014
1013

Ozone (du)

362
362
363
361
361
367
367
369
371
373
374
376
383
392
392
392
392
392
391
391
389
387
386
385

Saturday 2

Waning Gibbous 98%

22:11

05:37

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
16 Bad
17 Bad

Sun - Rise: 05:31, Set: 20:34, Transit: 13:03. Moon - Rise: 22:11, Set: 05:37. Civil Dark: 21:14 - 04:51. Nautical Dark: 22:06 - 03:59. Astro Dark: 23:13 - 02:50

Total Clouds (% Sky Obscured)

91
94
93
95
74
80
86
81
77
79
73
66
63
68
76
81
80
75
78
72
70
66
66
64

Low Clouds (% Sky Obscured)

74
70
66
59
57
61
65
54
43
31
26
19
12
28
42
54
60
65
71
53
36
19
25
31

Medium Clouds (% Sky Obscured)

37
27
23
19
18
19
25
26
24
19
21
29
35
42
50
54
39
21
2
8
14
17
13
12

High Clouds (% Sky Obscured)

17
35
52
75
70
60
48
45
40
36
29
17
10
10
8
6
4
2
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

59
58
44
29
20
16
7
6
4
0
0
0
0
5
6
5
19
23
23
22
23
27
32
38

Precipitation Amount (mm)

0
0.3
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
8
7
7
6
6
6
6
6
5
5
5
5
4
5
7
8
7
7
6
6
6
6
5

Chance of Frost

Temperature (°C)

14
14
13
12
10
10
10
9
9
8
7
7
7
7
9
10
12
13
14
14
15
15
16
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
80
84
90
95
95
95
95
95
96
96
96
94
94
90
87
83
76
72
68
65
62
59
65

Pressure (mb)

1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1014
1014
1014
1014

Ozone (du)

384
383
383
383
383
381
380
378
379
380
381
382
384
385
387
389
392
392
392
392
390
388
385
384

Sunday 3

Waning Gibbous 95%

23:22

06:07

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 OK
09 Good
10 OK
11 Bad
12 Bad

Sun - Rise: 05:29, Set: 20:36, Transit: 13:03. Moon - Rise: 23:22, Set: 06:07. Civil Dark: 21:16 - 04:49. Nautical Dark: 22:08 - 03:56. Astro Dark: 23:17 - 02:46

Total Clouds (% Sky Obscured)

63
64
68
70
68
65
63
73
89
100
97
94
92
63
38
15
29
43
54

Low Clouds (% Sky Obscured)

40
45
55
64
53
43
31
42
50
65
76
79
81
59
34
8
18
30
41

Medium Clouds (% Sky Obscured)

13
12
18
22
22
24
24
22
20
21
16
13
5
4
3
1
5
9
13

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1

ISS Passover

Visibility (miles)

8
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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

44
40
34
20
17
11
0
0
0
0
0
0
0
0
0
0
8
11
12

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
14
13
11
10
10
9
8
8
8
8
8
8
9
10
11
13
13
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
79
81
84
87
85
85
82
81
79
78
79
79
80
76
73
71
69
64

Pressure (mb)

1014
1014
1014
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015

Ozone (du)

383
382
383
383
384
384
384
384
383
381
379
379
378
378
379
380
381
382
382

Forecast for Henley in Arden, Warwickshire, United Kingdom (52.29,-1.78)

Generated: 27/04/26 18:30:06. Forecast: 27/04/26 to 03/05/26. Timezone: UTC+1.00