Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 30

Waxing Gibbous 99%

19:40

04:59

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

0
0
1
1
0
0
0
0
0
0
0
0
13
36
40
54
51
57
77
80
93
90
96
98

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
21
39
34
40
81
55
56

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
6
16
11
15
11
16
34
35
32
30
19
20

High Clouds (% Sky Obscured)

0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
4
3
0
3
1
33
9
44
53

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
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
Very Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
16
42
49
69
95

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
0.2
0.4
1.1

Wind Speed/Direction (mph)

14
13
12
9
8
7
6
6
6
6
6
6
6
4
6
6
7
7
8
9
8
8
8
9

Chance of Frost

Temperature (°C)

20
18
16
13
12
10
9
8
8
7
7
7
7
8
11
14
16
17
19
20
21
21
20
20

Feels Like (°C)

17
16
14
12
10
9
8
7
7
6
6
6
6
8
10
13
15
17
19
19
20
19
19
19

Dew Point (°C)

13
13
11
9
8
8
7
6
6
5
5
4
3
4
6
8
9
11
12
14
15
18
17
17

Relative Humidity (%)

65
70
74
76
80
83
84
87
85
84
82
82
78
75
70
67
65
64
64
66
68
82
82
84

Pressure (mb)

1020
1020
1020
1021
1021
1022
1021
1021
1021
1021
1020
1020
1020
1021
1021
1021
1021
1021
1020
1020
1019
1019
1019
1019

Ozone (du)

383
382
380
377
376
374
373
372
372
371
371
370
369
370
370
369
368
368
367
367
366
365
365
363

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
79
88
67
100
100
90
97
100
100
100
87
63
64
75
64
58
65
65
100
100
100
100
100

Low Clouds (% Sky Obscured)

47
26
31
32
53
62
66
49
6
0
0
0
18
6
8
31
37
23
10
35
66
57
45
76

Medium Clouds (% Sky Obscured)

23
6
3
3
12
10
23
23
56
100
100
87
63
64
75
64
58
55
24
65
63
98
100
100

High Clouds (% Sky Obscured)

88
70
88
62
100
100
73
94
100
100
100
38
35
35
40
26
35
61
25
100
57
99
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
7
3
6

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
Very Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

48
12
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
22
58
71
93

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.8

Wind Speed/Direction (mph)

8
7
5
5
5
5
5
4
4
4
3
3
3
3
4
3
3
4
4
4
4
5
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
17
16
14
12
11
11
10
9
9
9
8
8
9
10
12
13
15
16
19
18
20
18
18

Dew Point (°C)

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

Relative Humidity (%)

82
83
90
92
92
93
90
87
87
87
90
90
91
88
83
77
69
64
60
59
58
60
67
72

Pressure (mb)

1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1016
1015
1014
1014
1013

Ozone (du)

361
360
363
365
365
364
362
363
363
363
365
366
367
370
372
372
373
374
376
376
377
376
375
375

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)

100
100
100
100
100
98
100
100
100
100
100
100
99
96
78
82
94
94
95
84
95
50
52
49

Low Clouds (% Sky Obscured)

54
62
44
67
80
82
86
85
88
91
90
100
90
62
67
77
57
63
64
52
48
23
24
25

Medium Clouds (% Sky Obscured)

100
100
100
100
99
73
100
100
100
100
100
93
88
70
65
5
0
23
9
16
20
27
24
25

High Clouds (% Sky Obscured)

100
90
100
100
85
81
100
100
100
100
100
100
89
91
55
51
50
50
60
50
23
0
0
0

ISS Passover

Visibility (miles)

2
2
6
8
9
9
7
4
2
2
2
1
2
1
6
9
9
9
9
6
4
7
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
None
Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

95
95
84
73
53
77
95
95
95
95
95
77
64
21
13
23
44
39
59
70
59
47
24
28

Precipitation Amount (mm)

1.6
1
0.4
0.4
0
0.4
0.6
1.4
2.9
2.4
0.4
0.3
0.2
0
0
0
0
0
0
0.4
0.2
0
0
0

Wind Speed/Direction (mph)

5
8
6
3
2
5
5
6
6
7
5
4
5
9
10
11
13
14
14
14
14
13
14
15

Chance of Frost

Temperature (°C)

17
16
15
14
13
13
13
13
13
12
12
13
12
12
12
13
14
15
16
16
16
16
16
16

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
83
90
93
95
95
96
96
98
98
98
98
100
98
95
92
86
82
75
73
75
85
74
72

Pressure (mb)

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

Ozone (du)

375
376
378
381
381
382
379
380
381
379
381
381
383
388
391
397
395
390
390
388
387
388
385
383

Sunday 3

Waning Gibbous 95%

23:22

06:07

18 Bad
19 OK
20 OK
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: 05:29, 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)

38
32
33
36
41
39
32
33
30
32
39
49
62
69
77
73
73
75
76
72
69
67
63
72

Low Clouds (% Sky Obscured)

23
29
33
36
41
39
32
33
30
32
39
49
62
68
65
52
50
55
57
56
55
53
50
53

Medium Clouds (% Sky Obscured)

21
21
25
25
29
28
30
29
30
27
25
23
27
33
39
43
41
38
34
33
33
30
34
37

High Clouds (% Sky Obscured)

0
0
0
0
0
0
1
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
Very Light Rain
Light Rain
Very Light Rain
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

10
8
11
12
19
24
27
39
46
53
47
41
40
40
41
36
43
46
44
44
41
20
26
17

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.3
0.4
0.3
0
0.3
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

13
11
8
6
5
4
4
4
3
3
3
3
2
2
2
4
4
5
6
6
6
7
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
78
84
92
91
93
95
93
95
96
96
96
96
95
87
80
72
68
63
61
59
61
60
57

Pressure (mb)

1007
1007
1008
1008
1009
1009
1009
1010
1010
1010
1010
1011
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012

Ozone (du)

384
386
387
387
390
391
393
393
391
390
389
388
388
387
386
385
385
384
384
384
385
387
388
391

Monday 4

Waning Gibbous 90%

00:26

06:49

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

Sun - Rise: 05:27, Set: 20:38, Transit: 13:03. Moon - Rise: 00:26, Set: 06:49. Civil Dark: 21:18 - 04:47. Nautical Dark: 22:11 - 03:53. Astro Dark: 23:21 - 02:42

Total Clouds (% Sky Obscured)

76
54
45
30
41
55
66
46
26
10
11
9
11
85
87
85
93
96
98
91
84
76
80
83

Low Clouds (% Sky Obscured)

54
39
34
23
34
46
61
40
20
1
4
5
7
52
53
54
58
61
65
56
48
40
52
65

Medium Clouds (% Sky Obscured)

41
36
27
17
14
11
9
6
3
0
0
0
0
33
27
25
31
37
43
42
44
37
34
30

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
4
6
7
4
3
2
9
8
5
18
21
23
16
12
9
18
27

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
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

23
17
14
0
0
0
0
0
0
0
0
0
0
8
12
16
28
38
45
43
41
36
35
30

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

65
76
81
87
91
95
91
93
93
88
86
83
83
82
76
68
63
61
59
57
60
61
63
63

Pressure (mb)

1012
1013
1013
1014
1014
1014
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1013
1013
1013

Ozone (du)

395
398
396
392
387
383
380
379
377
374
376
377
377
378
377
376
375
375
375
375
375
376
376
378

Tuesday 5

Waning Gibbous 83%

01:17

07:44

18 Bad
19 Bad
20 OK
21 Good
22 OK
23 OK
00 OK
01 OK
02 OK
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

Sun - Rise: 05:25, Set: 20:40, Transit: 13:03. Moon - Rise: 01:17, Set: 07:44. Civil Dark: 21:20 - 04:45. Nautical Dark: 22:13 - 03:51. Astro Dark: 23:25 - 02:37

Total Clouds (% Sky Obscured)

87
58
33
5
38
41
44
34
31
25
48
72
95
89
85
80
75
63
62
64
72
78
84
91

Low Clouds (% Sky Obscured)

79
52
26
5
15
14
33
28
20
11
19
29
42
45
49
55
53
50
52
50
49
49
38
26

Medium Clouds (% Sky Obscured)

25
12
7
1
2
3
6
8
10
11
7
3
0
1
2
3
4
5
5
4
3
3
3
2

High Clouds (% Sky Obscured)

30
29
29
5
15
8
5
5
3
1
31
62
88
68
49
30
21
13
10
14
16
18
43
67

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 (%)

25
18
10
3
6
6
1
1
1
0
0
0
0
0
0
0
9
13
17
17
18
20
27
36

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
65
71
74
81
84
87
91
93
94
96
91
88
83
78
73
68
66
62
59
59
59
60
68

Pressure (mb)

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

Ozone (du)

380
381
382
383
383
385
387
388
388
388
389
388
387
386
386
385
385
386
387
388
387
387
387
389

Wednesday 6

Waning Gibbous 75%

01:55

08:50

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

Sun - Rise: 05:23, Set: 20:41, Transit: 13:03. Moon - Rise: 01:55, Set: 08:50. Civil Dark: 21:22 - 04:43. Nautical Dark: 22:16 - 03:48. Astro Dark: 23:29 - 02:33

Total Clouds (% Sky Obscured)

100
100
100
100
98
97
95
83
44
12
11
10
9
13
24
28
43
58
71

Low Clouds (% Sky Obscured)

20
15
19
23
29
34
35
33
26
12
11
10
9
10
9
9
25
43
60

Medium Clouds (% Sky Obscured)

2
24
47
69
71
73
75
62
44
12
11
10
9
13
12
12
13
13
14

High Clouds (% Sky Obscured)

90
96
98
100
88
77
61
52
44
12
11
10
9
13
24
16
10
5
0

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

41
39
33
21
18
14
4
4
3
0
2
3
5
7
8
4
15
19
22

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)

7
7
7
6
5
6
6
7
7
7
7
7
7
8
10
13
17
15
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
10
6
5
5
4
4
4
2
2
2
1
1
1
2
2
2
3
4

Dew Point (°C)

6
7
6
6
5
4
3
2
2
2
2
1
1
1
1
1
1
2
2

Relative Humidity (%)

78
90
90
88
88
88
85
85
88
89
93
89
88
85
75
66
58
58
58

Pressure (mb)

1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017

Ozone (du)

390
392
394
397
399
401
403
404
402
399
397
396
396
395
396
396
396
398
400

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

Generated: 30/04/26 18:11:33. Forecast: 30/04/26 to 06/05/26. Timezone: UTC+1.00