Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 27

Waxing Gibbous 97%

20:31

02:23

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

Sun - Rise: 05:21, Set: 21:06, Transit: 13:13. Moon - Rise: 20:31, Set: 02:23. Civil Dark: 21:48 - 04:38. Nautical Dark: 22:48 - 03:38. Astro Dark: 00:28 - 01:58

Total Clouds (% Sky Obscured)

64
56
39
0
0
1
10
35
47
32
34
43
26
47
71
78
75
80
69
74
82
85
84
93

Low Clouds (% Sky Obscured)

0
8
5
0
0
1
10
35
47
32
33
39
24
41
59
68
66
66
57
46
13
0
29
21

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
3
1
10
2
6
31
29
31
36
32
34
16
21
21
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
2
0
0
1
1
0
2
25
17
37
68
76
73
90

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)

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

Chance of Frost

Temperature (°C)

15
15
14
12
12
12
14
15
17
19
20
21
22
23
24
24
24
24
23
21
20
19
18
17

Feels Like (°C)

14
13
13
12
12
12
13
14
16
17
18
18
19
21
21
21
21
21
20
20
20
19
19
18

Dew Point (°C)

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

Relative Humidity (%)

74
80
86
90
93
93
84
69
59
48
40
35
34
34
35
40
47
47
51
55
63
72
78
82

Pressure (mb)

1013
1014
1014
1015
1015
1016
1016
1017
1018
1018
1018
1018
1018
1018
1018
1017
1018
1018
1018
1018
1019
1019
1019
1020

Ozone (du)

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

Tuesday 28

Waxing Gibbous 100%

20:57

03:31

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

Sun - Rise: 05:22, Set: 21:04, Transit: 13:13. Moon - Rise: 20:57, Set: 03:31. Civil Dark: 21:47 - 04:40. Nautical Dark: 22:45 - 03:41. Astro Dark: 00:21 - 02:06

Total Clouds (% Sky Obscured)

69
43
42
72
67
84
69
98
90
84
92
99
98
95
94
100
84
82
93
79
88
44
34
11

Low Clouds (% Sky Obscured)

0
13
14
16
21
20
22
35
53
49
53
40
41
5
17
0
11
14
24
22
23
8
14
0

Medium Clouds (% Sky Obscured)

19
22
17
20
45
74
50
83
62
42
76
82
64
70
80
97
77
69
54
45
34
14
14
4

High Clouds (% Sky Obscured)

53
5
12
36
24
9
39
80
56
46
21
41
43
49
59
92
16
25
60
58
47
23
3
8

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
1
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)

5
5
4
4
4
4
5
7
9
10
10
10
11
11
11
12
12
10
9
7
5
4
4
3

Chance of Frost

Temperature (°C)

17
17
16
16
15
15
17
19
21
22
24
25
26
27
28
28
28
27
27
26
24
22
20
19

Feels Like (°C)

18
18
17
18
16
16
18
19
20
21
23
23
24
25
26
25
24
24
24
24
22
21
20
21

Dew Point (°C)

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

Relative Humidity (%)

88
90
93
95
95
95
88
77
66
55
46
40
37
33
29
28
27
27
27
31
40
47
51
56

Pressure (mb)

1020
1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1017
1017
1016
1016
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

327
327
326
326
325
323
323
322
321
320
319
319
320
320
319
319
320
322
323
322
323
324
324
325

Wednesday 29

Full Moon 100%

21:17

04:45

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

Sun - Rise: 05:24, Set: 21:03, Transit: 13:13. Moon - Rise: 21:17, Set: 04:45. Civil Dark: 21:45 - 04:41. Nautical Dark: 22:43 - 03:43. Astro Dark: 00:14 - 02:12

Total Clouds (% Sky Obscured)

63
84
83
71
19
0
0
25
34
21
26
23
27
41
60
56
37
10
13
21
27
29
29
49

Low Clouds (% Sky Obscured)

0
7
7
11
12
0
0
18
22
13
18
18
21
25
20
13
11
4
3
1
0
3
6
9

Medium Clouds (% Sky Obscured)

10
9
5
2
0
0
0
0
3
2
0
0
0
0
0
0
0
0
0
0
0
3
6
8

High Clouds (% Sky Obscured)

53
77
76
70
0
0
0
0
0
0
0
0
0
6
25
25
15
3
10
19
27
22
15
28

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)

2
2
2
2
2
2
2
4
5
6
8
9
11
12
14
14
13
11
11
10
9
7
8
8

Chance of Frost

Temperature (°C)

18
17
16
16
15
15
17
20
22
23
25
27
28
29
29
29
29
28
28
26
24
22
20
19

Feels Like (°C)

20
19
18
18
17
18
19
22
23
25
26
27
27
27
26
24
25
25
26
24
23
21
20
19

Dew Point (°C)

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

Relative Humidity (%)

60
63
66
72
74
74
64
56
47
40
33
28
24
21
19
19
20
20
21
26
35
43
55
68

Pressure (mb)

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

Ozone (du)

325
327
329
331
331
330
329
328
327
326
326
325
327
330
328
329
329
330
332
329
328
329
328
327

Thursday 30

Waning Gibbous 100%

21:32

06:02

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 05:25, Set: 21:01, Transit: 13:13. Moon - Rise: 21:32, Set: 06:02. Civil Dark: 21:43 - 04:43. Nautical Dark: 22:40 - 03:46. Astro Dark: 00:08 - 02:18

Total Clouds (% Sky Obscured)

69
86
100
82
83
75
81
84
93
88
78
87
84
69
78
71
57
49
56
66
78
69
59
49

Low Clouds (% Sky Obscured)

14
19
22
22
18
17
26
46
58
56
59
81
74
65
78
48
19
13
18
29
36
31
24
20

Medium Clouds (% Sky Obscured)

15
76
65
39
28
75
23
47
87
73
25
15
10
5
0
0
0
0
4
9
13
10
4
0

High Clouds (% Sky Obscured)

57
81
100
66
65
55
54
38
45
3
5
5
26
1
41
50
50
45
30
30
25
20
20
15

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
9
15
19
15
12
3
3
2
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
7
7
7
8
11
13
14
14
16
17
16
16
16
14
14
14
12
8
6
6
5

Chance of Frost

Temperature (°C)

18
17
16
16
16
17
17
19
20
22
23
24
24
25
25
25
25
24
22
21
19
17
16
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
81
87
89
90
92
81
72
66
56
45
39
39
35
36
39
28
25
27
30
36
48
57
66

Pressure (mb)

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

Ozone (du)

327
328
329
331
334
334
334
332
331
333
337
341
344
342
340
340
341
341
343
344
348
350
350
349

Friday 31

Waning Gibbous 98%

21:44

07:19

01 OK
02 Good
03 Good
04 Good
05 OK
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 OK
19 OK
20 OK
21 Good
22 Good
23 Good
00 Good

Sun - Rise: 05:27, Set: 20:59, Transit: 13:13. Moon - Rise: 21:44, Set: 07:19. Civil Dark: 21:41 - 04:45. Nautical Dark: 22:38 - 03:48. Astro Dark: 00:03 - 02:23

Total Clouds (% Sky Obscured)

35
9
0
15
31
45
54
59
65
69
80
76
72
69
58
53
44
43
25
14
1
1
1
0

Low Clouds (% Sky Obscured)

13
7
0
9
17
28
27
36
39
35
53
27
28
31
28
14
10
5
3
2
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
8
13
11
10
6
5
6
6
10
13
8
1
0
0
0

High Clouds (% Sky Obscured)

11
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
0
0
0
1
3
0
0
0
0
0
1
2
1
1
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)

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

Chance of Frost

Temperature (°C)

13
12
11
10
10
11
12
14
16
18
20
21
22
23
23
24
23
22
22
19
17
15
14
12

Feels Like (°C)

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

Dew Point (°C)

8
9
9
8
9
9
9
8
8
8
6
4
1
1
-0
-1
-0
1
1
2
4
6
6
6

Relative Humidity (%)

74
81
86
87
88
88
80
68
56
49
42
32
24
23
21
20
21
23
25
32
42
53
61
67

Pressure (mb)

1016
1016
1016
1016
1017
1017
1018
1018
1018
1018
1018
1017
1017
1017
1017
1016
1017
1017
1017
1017
1018
1019
1019
1019

Ozone (du)

350
350
351
353
353
355
358
357
358
358
358
356
358
359
360
362
362
363
363
362
361
361
362
364

Saturday 1

Waning Gibbous 94%

21:55

08:36

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

Sun - Rise: 05:28, Set: 20:58, Transit: 13:13. Moon - Rise: 21:55, Set: 08:36. Civil Dark: 21:39 - 04:47. Nautical Dark: 22:35 - 03:51. Astro Dark: 23:57 - 02:28

Total Clouds (% Sky Obscured)

0
0
0
2
3
6
15
25
36
48
60
72
75
77
80
58
29
5
5
10
29
39
49
65

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
9
18
25
16
9
0
0
0
0
0
0
0
0
0
0
1
2
4

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
7
10
12
11
12
25
18
11
4
4
4
4
16
27
38

High Clouds (% Sky Obscured)

0
0
0
1
1
0
0
0
0
0
0
9
14
19
25
20
20
5
5
10
14
19
34
65

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

Chance of Frost

Temperature (°C)

11
10
9
9
9
10
11
13
16
18
19
21
22
23
23
24
23
23
22
20
18
16
14
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
78
81
82
81
78
76
63
53
43
39
35
30
28
27
25
25
26
27
30
33
38
39
40

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1020
1020
1021
1020
1020
1020
1020
1019
1019
1019
1019
1019
1020
1020
1021
1021
1021

Ozone (du)

365
361
357
353
349
346
343
338
334
330
327
324
322
320
319
318
318
319
319
321
323
325
329
332

Sunday 2

Waning Gibbous 88%

22:05

09:52

Sun - Rise: 05:30, Set: 20:56, Transit: 13:13. Moon - Rise: 22:05, Set: 09:52. Civil Dark: 21:37 - 04:49. Nautical Dark: 22:33 - 03:53. Astro Dark: 23:52 - 02:33

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

Generated: 27/07/26 01:12:10. Forecast: 27/07/26 to 02/08/26. Timezone: UTC+1.00