Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 20

First Quarter 56%

15:42

22:48

01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 OK
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: 06:01, Set: 20:18, Transit: 13:10. Moon - Rise: 15:42, Set: 22:48. Civil Dark: 20:55 - 05:25. Nautical Dark: 21:41 - 04:39. Astro Dark: 22:34 - 03:46

Total Clouds (% Sky Obscured)

68
63
61
72
80
66
34
47
61
81
83
84
86
89
86
89
59
70
52
52
64
84
79
67

Low Clouds (% Sky Obscured)

33
33
44
65
70
64
31
33
49
70
83
79
81
82
84
80
36
49
25
28
48
80
72
51

Medium Clouds (% Sky Obscured)

10
19
22
21
47
2
0
25
20
27
0
30
31
35
28
34
32
36
41
29
28
21
28
33

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
8
9
9
9
9
9
9
3
3
3
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
Light Rain
Very Light Rain
None
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None

Precipitation Probability (%)

11
33
95
0
0
1
0
16
45
44
30
28
25
29
37
51
70
78
68
66
42
11
8
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.4
0.2
0
0
0
0
0
0
0.3
0.4
0.5
0.7
0.4
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
14
14
13
13
13
13
14
15
16
16
18
19
19
19
19
19
18
17
16
14
14
13
13

Feels Like (°C)

14
14
13
12
12
12
12
13
13
14
13
14
15
15
15
15
16
17
16
15
13
12
11
12

Dew Point (°C)

13
13
13
13
13
13
12
11
9
8
7
7
7
7
7
10
10
11
13
13
12
11
11
11

Relative Humidity (%)

90
93
96
96
96
96
92
80
68
58
54
50
47
47
47
56
58
63
76
85
84
82
83
86

Pressure (mb)

1005
1004
1004
1004
1004
1004
1004
1004
1005
1005
1005
1005
1005
1005
1005
1006
1006
1006
1007
1008
1009
1010
1010
1010

Ozone (du)

340
341
341
341
343
348
350
351
350
350
350
351
351
350
350
350
350
352
353
349
348
348
347
345

Friday 21

Waxing Gibbous 66%

16:47

23:27

01 Bad
02 OK
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 OK
22 OK
23 Good
00 Good

Sun - Rise: 06:03, Set: 20:16, Transit: 13:09. Moon - Rise: 16:47, Set: 23:27. Civil Dark: 20:52 - 05:26. Nautical Dark: 21:38 - 04:41. Astro Dark: 22:31 - 03:48

Total Clouds (% Sky Obscured)

57
43
53
67
74
81
81
84
70
67
69
58
73
74
93
90
77
80
93
55
34
20
18
12

Low Clouds (% Sky Obscured)

38
30
29
49
59
73
73
74
60
51
51
25
39
74
67
90
65
72
57
19
7
7
7
8

Medium Clouds (% Sky Obscured)

30
15
24
22
19
15
15
19
22
26
29
33
59
58
46
64
76
73
66
35
22
10
11
8

High Clouds (% Sky Obscured)

0
0
0
2
0
0
0
0
0
0
1
2
0
0
31
0
0
8
60
7
2
2
1
2

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
0
0
1
2
4
6
8
12
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
5
5
5
5
5
7
9
9
8
8
8
8
8
8
8
8
8
9
8
7
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
12
12
11
10
10
9
8
6
5
3
1
1
1
2
3
3
3
4
6
9
10
10
10

Relative Humidity (%)

92
95
96
96
95
93
87
79
65
54
42
35
32
30
31
33
34
35
38
51
68
76
83
87

Pressure (mb)

1011
1011
1011
1012
1012
1012
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1016
1017
1018
1019
1019

Ozone (du)

344
344
345
345
345
346
346
347
346
345
346
348
351
353
355
357
360
361
360
360
360
360
359
359

Saturday 22

Waxing Gibbous 75%

17:42

00:19

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

Sun - Rise: 06:04, Set: 20:14, Transit: 13:09. Moon - Rise: 17:42, Set: 00:19. Civil Dark: 20:50 - 05:28. Nautical Dark: 21:35 - 04:43. Astro Dark: 22:27 - 03:51

Total Clouds (% Sky Obscured)

18
8
4
30
27
21
10
7
1
1
60
55
53
54
35
11
32
25
20
25
29
43
44
23

Low Clouds (% Sky Obscured)

5
7
4
30
27
21
9
6
1
1
37
25
25
15
11
9
5
6
5
20
23
34
33
8

Medium Clouds (% Sky Obscured)

9
5
3
0
3
0
0
0
0
0
0
37
33
28
21
4
16
10
8
5
3
5
8
10

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
11
10
10
8
8
8
12
13
15
17
18
18
18
18
18
19
19
18
17
15
14
13
12

Dew Point (°C)

9
9
8
7
7
6
6
6
5
5
5
4
3
1
1
1
0
1
1
4
5
5
5
6

Relative Humidity (%)

87
88
85
82
82
81
78
67
57
51
46
40
35
30
28
27
26
27
30
41
47
51
54
58

Pressure (mb)

1020
1020
1020
1020
1021
1021
1022
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022
1023
1024
1024
1024
1024

Ozone (du)

358
357
356
355
356
357
358
357
357
357
357
359
360
360
360
359
360
360
360
359
358
357
357
357

Sunday 23

Waxing Gibbous 83%

18:24

No Set

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

Sun - Rise: 06:06, Set: 20:12, Transit: 13:09. Moon - Rise: 18:24, Set: No Set. Civil Dark: 20:48 - 05:30. Nautical Dark: 21:33 - 04:45. Astro Dark: 22:24 - 03:54

Total Clouds (% Sky Obscured)

14
8
0
0
1
1
1
0
0
13
26
39
38
27
20
20
21
17
13
7
0
1
0
1

Low Clouds (% Sky Obscured)

5
2
0
0
0
0
0
0
0
5
10
15
13
12
12
8
7
2
1
1
0
0
0
0

Medium Clouds (% Sky Obscured)

7
2
0
0
0
1
0
0
0
7
17
22
17
11
5
5
5
6
5
2
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
1
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
3
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
4
4
3
3
3
3
3
3
4
5
6
7
7
7
7
7
7
7
7
6
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
12
11
11
11
11
11
14
16
18
19
20
21
21
22
22
22
21
20
18
16
15
15
13

Dew Point (°C)

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

Relative Humidity (%)

65
72
76
80
83
85
83
74
61
51
44
38
33
29
27
25
24
24
26
34
41
45
51
55

Pressure (mb)

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

Ozone (du)

357
357
356
357
356
354
353
349
346
345
345
346
345
344
342
341
339
338
337
336
334
333
333
332

Monday 24

Waxing Gibbous 90%

18:55

01:22

01 Good
02 Good
03 OK
04 OK
05 OK
06 OK
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: 06:07, Set: 20:10, Transit: 13:09. Moon - Rise: 18:55, Set: 01:22. Civil Dark: 20:46 - 05:32. Nautical Dark: 21:30 - 04:47. Astro Dark: 22:21 - 03:56

Total Clouds (% Sky Obscured)

7
14
21
31
39
48
57
69
76
79
77
81
87
93
98
97
96
95
91
86
80
84
88
91

Low Clouds (% Sky Obscured)

3
5
8
14
17
22
20
18
16
14
10
8
4
1
0
0
0
0
0
3
9
9
13
13

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
5
7
10
10
15
20
25
25
25
19
20
27

High Clouds (% Sky Obscured)

3
5
8
8
8
8
26
43
53
59
65
67
74
84
98
93
92
89
88
86
80
84
81
75

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
5
7
6
20
17
17
37
38
31

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
5
6
6
7
7
8
10
13
15
16
17
17
17
17
17
16
16
15
15
15
14
15
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
70
75
75
73
72
70
59
53
47
40
36
32
31
31
30
33
35
38
45
52
61
69
78

Pressure (mb)

1022
1022
1021
1021
1021
1021
1020
1020
1019
1019
1018
1017
1016
1015
1015
1014
1014
1013
1013
1013
1013
1013
1013
1012

Ozone (du)

332
332
331
331
330
329
327
326
326
326
325
324
325
325
325
325
325
325
324
324
323
322
322
322

Tuesday 25

Waxing Gibbous 95%

19:18

02:33

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: 06:09, Set: 20:08, Transit: 13:08. Moon - Rise: 19:18, Set: 02:33. Civil Dark: 20:43 - 05:33. Nautical Dark: 21:28 - 04:49. Astro Dark: 22:18 - 03:59

Total Clouds (% Sky Obscured)

94
97
100
99
99
98
99
99
99
99
100
100
99
98
96
97
98
99
97
96
89
92
96
100

Low Clouds (% Sky Obscured)

21
29
27
30
33
36
46
59
73
73
73
73
75
77
80
62
42
22
31
44
52
65
78
91

Medium Clouds (% Sky Obscured)

38
41
45
58
66
72
76
80
87
91
96
100
83
65
50
38
23
14
16
22
28
55
79
98

High Clouds (% Sky Obscured)

83
91
100
74
46
19
33
43
63
75
88
100
78
57
40
56
73
99
86
72
57
68
79
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
8

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

Precipitation Probability (%)

37
44
41
44
50
50
33
31
19
27
27
20
24
26
23
21
13
2
25
35
41
51
59
64

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
10
10
10
10
10
10
12
12
12
13
15
16
15
15
15
15
16
15
18
19
19
18
18

Dew Point (°C)

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

Relative Humidity (%)

87
89
92
95
90
87
83
71
60
51
55
57
60
56
50
46
48
49
50
59
72
85
85
85

Pressure (mb)

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

Ozone (du)

322
321
321
320
320
320
320
320
320
320
320
321
321
322
323
324
324
324
323
321
319
317
318
319

Wednesday 26

Waxing Gibbous 99%

19:36

03:49

Sun - Rise: 06:11, Set: 20:06, Transit: 13:08. Moon - Rise: 19:36, Set: 03:49. Civil Dark: 20:41 - 05:35. Nautical Dark: 21:25 - 04:51. Astro Dark: 22:15 - 04:01

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

Generated: 20/08/26 01:18:55. Forecast: 20/08/26 to 26/08/26. Timezone: UTC+1.00