Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 23

Waxing Gibbous 83%

18:24

01:22

16 OK
17 OK
18 OK
19 Good
20 Good
21 OK
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

Sun - Rise: 06:07, Set: 20:12, Transit: 13:09. Moon - Rise: 18:24, Set: 01:22. Civil Dark: 20:48 - 05:32. Nautical Dark: 21:33 - 04:47. Astro Dark: 22:24 - 03:56

Total Clouds (% Sky Obscured)

36
33
25
12
2
19
68
69
76
86
75
77
73
98
94
83
49
62
66
48
59
82
73
64

Low Clouds (% Sky Obscured)

0
0
0
2
2
1
0
0
0
4
2
3
0
0
3
10
10
36
20
16
22
25
24
17

Medium Clouds (% Sky Obscured)

21
10
0
0
0
3
3
0
0
0
0
0
0
0
0
0
0
0
0
3
10
69
73
23

High Clouds (% Sky Obscured)

0
0
0
0
0
1
53
65
71
84
75
72
68
98
92
78
38
31
49
29
15
52
22
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
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
4
5
5
4
4
3
4
4
4
5
5
5
6
6
7
9
12
15
16
16
15
15
16

Chance of Frost

Temperature (°C)

23
23
22
21
20
17
15
13
13
13
12
12
12
12
12
12
13
15
17
18
20
21
22
22

Feels Like (°C)

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

Dew Point (°C)

4
3
2
3
5
7
10
9
8
8
9
10
10
10
10
10
8
7
7
6
6
6
5
6

Relative Humidity (%)

27
26
27
30
37
53
72
74
70
71
79
84
86
90
90
86
70
60
51
45
40
36
34
34

Pressure (mb)

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

Ozone (du)

353
354
355
353
350
346
344
342
342
340
337
336
335
335
335
334
333
331
327
321
320
321
322
324

Monday 24

Waxing Gibbous 90%

18:55

02:33

16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 OK
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

Sun - Rise: 06:09, Set: 20:10, Transit: 13:08. Moon - Rise: 18:55, Set: 02:33. Civil Dark: 20:46 - 05:33. Nautical Dark: 21:30 - 04:49. Astro Dark: 22:21 - 03:59

Total Clouds (% Sky Obscured)

54
47
46
53
49
39
84
90
100
100
95
81
100
100
100
81
88
66
90
91
87
88
78
92

Low Clouds (% Sky Obscured)

2
2
3
3
2
2
11
6
2
36
25
30
34
41
43
37
30
22
22
15
16
24
18
13

Medium Clouds (% Sky Obscured)

15
47
46
6
7
7
7
7
12
56
41
28
34
40
22
21
31
27
47
52
37
28
33
74

High Clouds (% Sky Obscured)

14
18
19
26
29
20
65
70
100
100
67
45
99
100
100
33
15
1
90
87
87
88
78
92

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
Very Light Rain
Very Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
1
1
1
2
3
4
2
7
18
30
43
48
71

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
0.3
0.9

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

22
22
21
20
18
16
15
14
14
13
13
13
13
12
12
13
14
16
18
21
22
22
22
21

Feels Like (°C)

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

Dew Point (°C)

6
5
6
6
8
8
8
8
9
9
10
10
10
10
11
11
11
10
9
8
6
4
3
2

Relative Humidity (%)

35
34
38
42
51
59
64
67
72
76
80
84
84
87
90
89
80
67
52
43
35
30
28
28

Pressure (mb)

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

Ozone (du)

327
327
328
329
328
329
327
326
324
324
324
325
325
323
323
322
319
318
319
320
318
317
318
317

Tuesday 25

Waxing Gibbous 95%

19:18

03:49

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 06:11, Set: 20:08, Transit: 13:08. Moon - Rise: 19:18, Set: 03:49. Civil Dark: 20:43 - 05:35. Nautical Dark: 21:28 - 04:51. Astro Dark: 22:18 - 04:01

Total Clouds (% Sky Obscured)

98
80
82
100
100
100
84
98
100
100
100
100
100
93
88
75
87
70
66
70
42
49
62
70

Low Clouds (% Sky Obscured)

23
20
10
23
24
25
37
22
22
81
94
45
41
63
61
71
83
62
60
63
38
44
62
70

Medium Clouds (% Sky Obscured)

88
80
45
86
93
95
84
69
60
86
84
27
28
39
13
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

98
14
54
100
100
100
59
86
98
100
100
100
100
38
22
14
27
18
13
16
7
11
19
25

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
6
7
4
5
9
9
9
9
4
8
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
None
None

Precipitation Probability (%)

55
14
6
2
1
1
2
3
3
3
3
25
7
14
36
37
3
1
13
22
27
44
26
17

Precipitation Amount (mm)

0.5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
20
20
19
18
17
17
16
16
16
16
16
15
15
15
16
17
19
20
21
22
24
24
25

Feels Like (°C)

16
15
15
16
15
15
14
14
14
15
14
15
14
14
15
15
17
18
19
21
23
25
25
24

Dew Point (°C)

1
2
3
5
7
7
8
9
10
10
10
10
11
12
13
14
14
15
15
16
15
14
13
13

Relative Humidity (%)

27
30
33
37
46
51
57
64
69
70
67
68
75
82
87
90
85
77
74
70
61
53
51
47

Pressure (mb)

1010
1010
1010
1009
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1011
1011
1011
1011
1010
1010
1010
1010

Ozone (du)

314
313
312
312
311
313
316
316
317
318
317
317
318
318
320
320
321
322
322
322
323
322
319
318

Wednesday 26

Waxing Gibbous 99%

19:36

05:06

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 06:12, Set: 20:06, Transit: 13:08. Moon - Rise: 19:36, Set: 05:06. Civil Dark: 20:41 - 05:37. Nautical Dark: 21:25 - 04:53. Astro Dark: 22:15 - 04:04

Total Clouds (% Sky Obscured)

65
61
55
72
86
100
99
99
98
81
99
100
100
100
95
100
100
100
98
99
99
100
100
100

Low Clouds (% Sky Obscured)

65
6
18
11
0
0
0
0
0
7
73
21
25
84
61
48
56
70
74
63
61
56
52
46

Medium Clouds (% Sky Obscured)

5
7
10
7
10
54
17
59
96
21
99
57
31
19
21
30
35
94
36
40
30
83
84
77

High Clouds (% Sky Obscured)

14
21
11
44
70
100
97
94
92
81
97
100
100
100
80
100
100
100
95
97
98
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
4
9
8
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
Very Light Rain
Very Light Rain
None
None
None
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

8
3
0
3
3
0
2
4
4
43
50
56
37
32
27
62
82
94
89
80
73
76
80
79

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.2
0.3
0
0
0
0.2
0.4
0.5
0.3
0.3
0.3
0.3
0.4
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

24
24
24
23
21
20
18
18
18
17
17
17
17
17
17
17
17
18
18
19
19
20
20
20

Feels Like (°C)

24
23
22
21
20
18
17
17
17
16
17
16
15
16
16
15
15
16
16
16
16
16
16
15

Dew Point (°C)

15
13
10
11
12
13
13
13
12
12
14
14
15
16
16
16
15
15
14
11
9
7
5
6

Relative Humidity (%)

57
50
41
47
57
67
70
72
71
73
82
83
90
93
92
93
89
82
76
61
50
41
37
41

Pressure (mb)

1009
1009
1009
1009
1009
1009
1009
1009
1008
1008
1007
1006
1006
1005
1005
1005
1005
1004
1004
1004
1003
1003
1003
1003

Ozone (du)

318
318
318
318
320
321
322
323
325
321
321
324
325
329
335
332
330
329
330
331
331
332
334
337

Thursday 27

Waxing Gibbous 100%

19:50

06:22

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 06:14, Set: 20:03, Transit: 13:08. Moon - Rise: 19:50, Set: 06:22. Civil Dark: 20:39 - 05:39. Nautical Dark: 21:23 - 04:55. Astro Dark: 22:12 - 04:06

Total Clouds (% Sky Obscured)

100
70
56
53
62
97
100
100
77
74
72
70
79
79
98
75
77
79
83
87
87
80
71
67

Low Clouds (% Sky Obscured)

32
20
10
16
25
35
37
35
30
27
24
25
21
17
17
13
13
10
7
3
0
12
23
35

Medium Clouds (% Sky Obscured)

60
17
14
10
18
13
46
5
0
6
1
0
2
7
10
10
20
30
23
17
10
8
6
4

High Clouds (% Sky Obscured)

100
55
48
48
52
95
100
100
61
52
57
60
75
76
97
32
26
22
42
62
82
78
71
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

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

Precipitation Probability (%)

70
61
57
52
45
20
26
31
26
23
27
6
5
4
0
7
7
2
15
25
29
26
35
47

Precipitation Amount (mm)

0.3
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
19
19
18
17
16
15
15
15
14
14
14
14
14
14
14
15
16
17
18
19
20
20
20

Feels Like (°C)

15
15
15
16
16
15
14
13
13
14
15
15
14
13
13
13
12
12
12
13
14
13
19
17

Dew Point (°C)

6
6
5
6
8
10
10
11
12
13
13
13
13
13
13
13
11
10
8
7
5
4
3
2

Relative Humidity (%)

42
40
40
45
56
67
72
76
86
92
95
95
95
95
95
93
78
66
54
46
39
34
31
29

Pressure (mb)

1003
1003
1003
1003
1004
1004
1004
1004
1004
1004
1004
1004
1004
1003
1003
1003
1004
1004
1004
1004
1004
1003
1003
1003

Ozone (du)

338
340
344
346
346
344
344
346
348
347
346
346
345
345
344
345
345
345
345
346
347
347
347
348

Friday 28

Full Moon 99%

20:02

07:39

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 06:15, Set: 20:01, Transit: 13:07. Moon - Rise: 20:02, Set: 07:39. Civil Dark: 20:36 - 05:40. Nautical Dark: 21:20 - 04:57. Astro Dark: 22:09 - 04:09

Total Clouds (% Sky Obscured)

71
83
98
94
93
90
94
94
94
93
89
88
91
95
100
91
81
72
82
89
96
96
96
97

Low Clouds (% Sky Obscured)

44
53
60
47
34
20
40
60
80
62
45
27
26
26
27
27
28
27
47
67
87
89
91
93

Medium Clouds (% Sky Obscured)

12
20
28
42
55
68
81
90
94
93
89
88
91
95
97
67
38
8
4
2
5
5
5
4

High Clouds (% Sky Obscured)

66
56
60
62
75
90
88
85
78
69
57
46
50
59
71
62
56
50
49
47
41
41
45
50

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

Precipitation Probability (%)

45
56
46
33
33
32
39
42
44
41
34
19
10
5
3
10
13
16
25
37
54
61
62
52

Precipitation Amount (mm)

0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.3
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
20
19
19
18
16
15
15
15
14
14
14
14
14
14
14
15
16
17
17
18
18
17
17

Feels Like (°C)

16
17
19
20
14
14
14
14
14
13
12
13
13
13
13
13
12
12
12
12
12
12
14
12

Dew Point (°C)

1
4
7
9
10
11
12
12
13
13
13
13
13
13
12
13
12
12
12
11
10
9
8
8

Relative Humidity (%)

27
34
44
53
62
71
80
84
87
92
92
92
92
92
90
90
82
75
68
64
59
55
54
54

Pressure (mb)

1003
1003
1003
1003
1004
1004
1004
1004
1004
1004
1005
1005
1005
1005
1005
1006
1006
1006
1006
1006
1006
1006
1007
1007

Ozone (du)

348
344
341
337
334
332
329
330
330
330
329
327
326
327
328
330
328
326
324
324
323
323
323
323

Saturday 29

Waning Gibbous 96%

20:14

08:57

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 06:17, Set: 19:59, Transit: 13:07. Moon - Rise: 20:14, Set: 08:57. Civil Dark: 20:34 - 05:42. Nautical Dark: 21:17 - 04:59. Astro Dark: 22:06 - 04:11

Total Clouds (% Sky Obscured)

92
86
84
92
92
92
93
93
94
87
81
75
76
80
83
91
96
100
100
100
100

Low Clouds (% Sky Obscured)

78
64
49
50
51
52
49
45
40
31
22
15
25
32
39
40
41
42
54
67
79

Medium Clouds (% Sky Obscured)

12
12
15
15
15
12
13
14
20
17
9
1
9
19
29
22
13
5
7
9
6

High Clouds (% Sky Obscured)

55
60
75
85
85
85
86
88
89
64
39
15
21
32
43
65
84
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

Fog (%)

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

Precipitation Probability (%)

39
29
14
22
22
31
26
22
15
14
9
1
1
1
0
3
6
8
28
39
50

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
17
17
17
16
16
16
15
15
15
15
14
14
14
14
14
15
16
17
17
18

Feels Like (°C)

11
12
13
13
12
13
13
13
14
13
12
12
13
13
12
12
12
12
13
13
12

Dew Point (°C)

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

Relative Humidity (%)

53
58
63
67
74
82
87
89
92
93
95
95
96
96
96
96
84
74
65
61
58

Pressure (mb)

1007
1007
1006
1006
1007
1007
1007
1008
1008
1008
1008
1008
1007
1008
1008
1008
1008
1008
1008
1009
1009

Ozone (du)

323
326
329
332
327
322
317
315
312
309
308
307
306
306
305
305
304
304
303
302
302

Forecast for Marlborough, Wiltshire, United Kingdom (51.42,-1.73)

Generated: 23/08/26 16:58:55. Forecast: 23/08/26 to 29/08/26. Timezone: UTC+1.00