Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 29

Full Moon 100%

21:09

06:00

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

Sun - Rise: 05:24, Set: 20:55, Transit: 13:09. Moon - Rise: 21:09, Set: 06:00. Civil Dark: 21:36 - 04:43. Nautical Dark: 22:32 - 03:48. Astro Dark: 23:53 - 02:29

Total Clouds (% Sky Obscured)

0
0
0
1
2
3
6
15
26
48
44
61
74
33
22
27
40
6
12
17
35
38
48
87

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
9
10
11
5
13
27
26
15
14
7
0
7
0
9
12
22
36

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
1
2
3
6
2
11
24
16
25
25
1
2
9
29
5
5
17
33
30
18
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)

1
0
0
3
4
5
7
8
11
12
14
15
15
13
12
11
10
9
9
8
7
6
6
5

Chance of Frost

Temperature (°C)

16
17
20
23
26
28
30
31
32
32
32
32
31
30
28
25
23
21
20
18
18
17
16
16

Feels Like (°C)

19
19
22
25
27
28
30
30
30
30
28
27
26
26
26
24
22
19
19
18
17
16
15
17

Dew Point (°C)

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

Relative Humidity (%)

82
70
58
47
38
32
28
24
22
20
20
21
21
26
37
49
59
64
71
80
85
87
92
96

Pressure (mb)

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

Ozone (du)

327
329
327
323
322
321
321
320
319
320
319
320
321
322
322
321
320
320
321
323
323
325
329
330

Thursday 30

Waning Gibbous 98%

21:25

06:00

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 OK
21 Bad
22 Bad
23 Bad
00 Bad
01 OK
02 OK
03 OK
04 Good
05 Good

Sun - Rise: 05:26, Set: 20:53, Transit: 13:09. Moon - Rise: 21:25, Set: 06:00. Civil Dark: 21:34 - 04:45. Nautical Dark: 22:29 - 03:50. Astro Dark: 23:48 - 02:34

Total Clouds (% Sky Obscured)

83
77
66
71
97
77
75
76
45
100
100
100
71
46
34
90
100
100
100
35
33
25
2
1

Low Clouds (% Sky Obscured)

37
16
26
48
41
22
18
14
11
0
0
1
18
27
24
24
16
3
14
9
7
0
0
0

Medium Clouds (% Sky Obscured)

0
0
11
29
24
22
0
23
3
40
35
15
14
13
3
2
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

66
72
44
32
90
73
54
30
28
100
100
100
71
8
8
75
100
100
100
30
33
25
2
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)

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

Chance of Frost

Temperature (°C)

16
18
19
21
22
23
25
26
27
27
27
26
26
25
24
21
20
18
17
15
14
13
12
11

Feels Like (°C)

17
18
19
21
22
21
22
23
23
23
22
21
21
22
21
20
16
15
13
12
11
10
9
11

Dew Point (°C)

15
15
14
14
13
10
8
7
6
4
-1
-3
-3
0
3
5
6
5
4
4
5
5
5
5

Relative Humidity (%)

95
86
72
63
54
44
34
29
25
22
16
14
15
19
24
34
40
42
44
48
53
58
61
66

Pressure (mb)

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

Ozone (du)

330
330
329
329
329
330
330
330
334
335
336
340
341
341
337
336
337
337
337
338
340
341
342
342

Friday 31

Waning Gibbous 94%

21:38

07:16

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

Sun - Rise: 05:27, Set: 20:52, Transit: 13:09. Moon - Rise: 21:38, Set: 07:16. Civil Dark: 21:32 - 04:47. Nautical Dark: 22:27 - 03:53. Astro Dark: 23:44 - 02:38

Total Clouds (% Sky Obscured)

0
0
1
2
6
4
7
16
21
25
31
32
38
39
44
46
59
70
80
80
80
75
59
41

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
5
8
14
17
15
15
15
12
9
13
16
20
23
25
31
28
25

High Clouds (% Sky Obscured)

0
0
1
2
5
3
5
6
4
1
2
3
4
7
10
13
14
13
12
33
54
70
50
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
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)

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

Chance of Frost

Temperature (°C)

11
13
15
18
20
21
23
24
25
25
26
25
25
25
23
21
19
18
16
15
14
14
14
13

Feels Like (°C)

10
13
15
16
18
20
21
23
24
24
24
24
23
23
20
18
15
15
14
12
12
12
12
12

Dew Point (°C)

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

Relative Humidity (%)

67
57
43
35
29
25
22
20
18
16
16
16
16
16
20
27
28
30
31
37
38
41
44
46

Pressure (mb)

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

Ozone (du)

341
341
342
342
343
342
342
343
344
346
348
348
347
346
346
346
345
343
343
344
352
357
354
351

Saturday 1

Waning Gibbous 88%

21:50

08:32

06 OK
07 OK
08 OK
09 OK
10 OK
11 OK
12 OK
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: 05:29, Set: 20:50, Transit: 13:09. Moon - Rise: 21:50, Set: 08:32. Civil Dark: 21:31 - 04:48. Nautical Dark: 22:25 - 03:55. Astro Dark: 23:40 - 02:42

Total Clouds (% Sky Obscured)

26
30
34
35
40
37
42
51
51
59
52
55
58
69
68
81
78
82
94
100
99
99
99
100

Low Clouds (% Sky Obscured)

0
0
0
0
2
4
5
11
16
21
21
22
25
17
9
0
0
0
0
0
0
0
8
17

Medium Clouds (% Sky Obscured)

22
24
27
26
23
23
19
24
25
22
28
29
25
25
20
15
18
17
16
22
28
34
33
32

High Clouds (% Sky Obscured)

8
9
9
9
8
3
2
21
33
53
46
45
48
54
57
71
64
57
85
99
99
98
99
99

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
5
8

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

Chance of Frost

Temperature (°C)

13
14
16
19
21
22
23
25
25
26
26
26
25
25
23
22
20
19
18
17
16
16
16
15

Feels Like (°C)

12
13
16
18
20
21
22
23
23
24
24
24
24
23
22
20
17
17
16
14
13
12
12
12

Dew Point (°C)

3
1
2
2
2
2
3
3
3
2
1
0
0
1
2
4
6
7
7
7
7
7
7
7

Relative Humidity (%)

48
43
37
33
28
26
27
25
23
21
19
18
19
20
24
31
40
46
50
50
52
53
54
57

Pressure (mb)

1018
1018
1018
1018
1018
1018
1017
1017
1016
1016
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1015
1015
1015
1014

Ozone (du)

348
346
342
338
336
334
333
331
330
330
331
331
330
329
328
327
328
328
328
327
328
328
326
326

Sunday 2

Waning Gibbous 80%

22:01

09:48

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: 05:30, Set: 20:49, Transit: 13:09. Moon - Rise: 22:01, Set: 09:48. Civil Dark: 21:29 - 04:50. Nautical Dark: 22:22 - 03:57. Astro Dark: 23:35 - 02:46

Total Clouds (% Sky Obscured)

100
97
98
100
95
90
84
87
90
93
95
98
100
100
100
100
100
100
99
99
99
99
99
98

Low Clouds (% Sky Obscured)

26
0
0
0
0
0
0
0
0
0
4
9
9
4
1
0
16
31
47
40
34
30
36
50

Medium Clouds (% Sky Obscured)

27
38
44
50
58
71
84
87
90
91
93
97
99
100
99
98
99
99
99
97
94
91
89
88

High Clouds (% Sky Obscured)

100
87
93
99
92
88
76
63
66
72
81
90
98
99
99
99
84
68
51
59
66
64
58
61

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
Very Light Rain
Light Rain
Very Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

10
4
6
5
7
6
0
1
0
0
3
6
6
9
13
15
31
41
50
64
71
70
75
70

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
16
17
19
21
22
24
25
26
27
28
27
25
24
23
22
21
20
19
19
19
18
18
19

Feels Like (°C)

12
13
13
13
14
14
15
16
24
23
23
23
24
25
19
19
18
18
17
16
15
16
16
16

Dew Point (°C)

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

Relative Humidity (%)

61
61
55
49
46
40
35
31
27
24
21
23
25
28
31
35
39
43
46
50
55
61
67
66

Pressure (mb)

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

Ozone (du)

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

Monday 3

Waning Gibbous 71%

22:13

11:05

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

Sun - Rise: 05:32, Set: 20:47, Transit: 13:08. Moon - Rise: 22:13, Set: 11:05. Civil Dark: 21:27 - 04:52. Nautical Dark: 22:20 - 03:59. Astro Dark: 23:31 - 02:50

Total Clouds (% Sky Obscured)

98
98
99
99
93
87
82
77
72
66
56
34
9
18
35
51
48
43
42
55
68
82
84
87

Low Clouds (% Sky Obscured)

64
57
53
49
47
46
43
40
33
39
39
34
9
18
35
48
37
29
19
15
11
8
13
19

Medium Clouds (% Sky Obscured)

86
88
90
91
81
70
61
55
52
47
43
34
9
18
32
28
20
11
3
18
34
49
47
47

High Clouds (% Sky Obscured)

67
69
72
74
49
25
0
0
0
0
11
9
9
9
10
11
14
20
30
47
60
74
70
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 (%)

49
43
32
18
18
12
1
2
2
0
1
2
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)

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

Chance of Frost

Temperature (°C)

19
19
20
21
22
23
25
26
27
28
28
27
27
26
23
22
20
18
17
16
15
14
14
14

Feels Like (°C)

15
15
17
18
18
18
18
19
26
26
25
26
27
27
24
23
23
22
21
20
14
14
14
14

Dew Point (°C)

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

Relative Humidity (%)

64
63
59
55
52
45
38
34
31
28
25
27
29
31
32
34
35
46
62
81
85
90
93
92

Pressure (mb)

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

Ozone (du)

325
326
325
325
325
325
324
324
321
319
316
313
311
308
307
307
306
304
302
300
300
301
301
301

Tuesday 4

Waning Gibbous 60%

22:27

12:25

Sun - Rise: 05:33, Set: 20:45, Transit: 13:08. Moon - Rise: 22:27, Set: 12:25. Civil Dark: 21:25 - 04:54. Nautical Dark: 22:17 - 04:02. Astro Dark: 23:27 - 02:53

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 Bray Court, Windsor and Maidenhead, United Kingdom (51.50,-0.70)

Generated: 29/07/26 06:05:37. Forecast: 29/07/26 to 04/08/26. Timezone: UTC+1.00