Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 30

Waning Gibbous 91%

20:21

No Set

10 OK
11 OK
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
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 06:14, Set: 19:54, Transit: 13:03. Moon - Rise: 20:21, Set: No Set. Civil Dark: 20:30 - 05:38. Nautical Dark: 21:13 - 04:55. Astro Dark: 22:02 - 04:06

Total Clouds (% Sky Obscured)

32
33
43
69
88
79
78
100
100
100
75
89
55
66
67
100
99
95
73
60
57
51
64
81

Low Clouds (% Sky Obscured)

32
33
43
60
63
60
67
57
39
47
50
49
49
43
45
39
44
66
70
49
42
33
57
78

Medium Clouds (% Sky Obscured)

0
11
18
10
2
6
1
15
17
85
75
40
14
40
31
46
37
43
35
25
4
6
4
5

High Clouds (% Sky Obscured)

16
4
1
1
75
70
65
65
100
100
50
80
48
62
12
100
97
87
23
11
1
5
1
0

ISS Passover

Visibility (miles)

9
9
9
7
8
7
8
8
8
7
9
9
9
9
7
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

0
7
25
46
71
89
90
95
95
79
28
16
12
30
41
46
21
44
29
2
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0.5
0.6
0.4
0.9
1.2
0.4
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
65
59
59
60
59
55
60
63
68
85
85
85
90
92
87
89
92
89
87
90
90
84
82

Pressure (mb)

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

Ozone (du)

318
319
319
319
319
319
319
321
328
327
330
330
329
330
334
336
337
338
337
336
335
337
337
336

Monday 31

Waning Gibbous 83%

20:34

10:14

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 OK
05 OK
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 06:15, Set: 19:52, Transit: 13:03. Moon - Rise: 20:34, Set: 10:14. Civil Dark: 20:27 - 05:40. Nautical Dark: 21:11 - 04:57. Astro Dark: 21:59 - 04:09

Total Clouds (% Sky Obscured)

97
97
90
94
71
75
71
47
100
100
97
100
99
93
83
89
76
54
48
39
54
72
68
78

Low Clouds (% Sky Obscured)

62
76
74
78
56
67
67
28
71
55
17
0
0
0
0
0
0
0
0
0
4
4
9
13

Medium Clouds (% Sky Obscured)

26
24
15
13
7
0
0
0
4
4
19
21
40
17
47
60
76
29
14
12
18
57
63
53

High Clouds (% Sky Obscured)

0
0
0
0
0
30
31
37
100
100
93
100
99
86
72
69
5
1
3
6
3
4
14
20

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

Precipitation Probability (%)

2
14
28
40
20
12
7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
73
76
75
71
59
63
63
61
57
63
68
70
72
72
75
77
80
81
84
86
87
80
75

Pressure (mb)

1009
1010
1011
1012
1013
1013
1014
1014
1015
1016
1017
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1020
1020
1020

Ozone (du)

335
333
329
327
326
325
322
321
318
317
317
317
317
317
316
316
315
315
314
312
311
311
312
313

Tuesday 1

Waning Gibbous 74%

20:50

11:38

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
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 06:17, Set: 19:50, Transit: 13:02. Moon - Rise: 20:50, Set: 11:38. Civil Dark: 20:25 - 05:42. Nautical Dark: 21:08 - 04:59. Astro Dark: 21:56 - 04:11

Total Clouds (% Sky Obscured)

72
75
74
70
76
93
100
100
100
89
100
100
100
100
93
82
88
80
91
99
100
96
100
100

Low Clouds (% Sky Obscured)

18
28
12
33
32
45
54
46
16
2
5
7
1
1
29
36
36
36
48
39
21
25
36
56

Medium Clouds (% Sky Obscured)

48
41
24
12
12
12
6
4
3
45
76
89
73
73
35
25
24
24
30
93
86
59
79
93

High Clouds (% Sky Obscured)

13
5
43
2
0
40
100
100
100
88
100
100
100
99
25
16
45
71
83
93
99
93
100
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
1
0
0
0
0
7
2
0
0
0
0
0
0
0
0
0
0
0
0
11
19
28

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
15
17
18
18
17
18
18
17
17
16
15
14
14
13
13
13
13
13
13
13
12
13
13

Dew Point (°C)

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

Relative Humidity (%)

71
62
54
50
49
54
52
53
56
59
65
68
74
80
84
92
96
96
96
96
93
90
80
73

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1021
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

314
317
320
320
319
319
317
317
319
322
322
321
317
314
310
308
305
303
300
298
297
296
295
294

Wednesday 2

Waning Gibbous 63%

21:12

13:05

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
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 06:19, Set: 19:47, Transit: 13:02. Moon - Rise: 21:12, Set: 13:05. Civil Dark: 20:22 - 05:44. Nautical Dark: 21:05 - 05:01. Astro Dark: 21:53 - 04:14

Total Clouds (% Sky Obscured)

99
96
100
74
94
98
92
90
100
99
95
95
94
89
83
89
94
98
97
96
95
96
97
86

Low Clouds (% Sky Obscured)

54
33
59
52
72
77
59
53
62
57
50
57
80
81
69
66
79
81
80
84
55
67
86
60

Medium Clouds (% Sky Obscured)

91
86
95
23
20
13
9
20
64
50
63
44
86
12
10
68
53
97
95
84
92
81
26
40

High Clouds (% Sky Obscured)

79
68
73
54
30
16
19
17
22
43
59
81
57
38
30
38
52
82
79
80
63
73
66
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 (%)

32
31
16
17
19
12
14
15
1
1
1
1
4
2
1
6
7
2
4
17
16
29
34
38

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)

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

Chance of Frost

Temperature (°C)

16
17
18
19
20
20
20
20
20
19
19
18
18
18
18
18
18
18
18
18
18
18
18
19

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
71
57
57
60
64
72
68
71
72
76
78
82
81
80
81
82
83
86
89
90
90
85
81

Pressure (mb)

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

Ozone (du)

295
295
296
296
295
295
295
295
294
292
291
291
291
290
290
289
289
290
290
289
290
291
291
292

Thursday 3

Waning Gibbous 51%

21:44

14:32

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
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 06:20, Set: 19:45, Transit: 13:02. Moon - Rise: 21:44, Set: 14:32. Civil Dark: 20:20 - 05:45. Nautical Dark: 21:03 - 05:03. Astro Dark: 21:50 - 04:16

Total Clouds (% Sky Obscured)

76
100
93
85
82
67
73
65
83
93
97
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

67
54
50
50
50
47
43
32
59
42
63
81
86
87
88
91
91
93
80
62
41
34
24
26

Medium Clouds (% Sky Obscured)

20
43
69
15
52
14
10
9
8
10
9
15
70
80
91
90
91
97
94
89
85
68
37
5

High Clouds (% Sky Obscured)

9
55
32
40
9
4
9
3
16
50
75
100
96
90
99
99
98
98
94
92
92
94
97
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
3
4
5
7
8
8
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
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

57
68
83
65
49
30
26
22
19
17
14
8
18
72
95
95
95
88
74
57
39
39
47
53

Precipitation Amount (mm)

0
0.3
0.5
0.3
0
0
0
0
0
0
0
0
0
0.2
0.9
0.7
0.6
0.5
0.3
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
20
20
20
21
21
22
21
21
21
20
20
19
19
19
18
18
18
18
18
18
18
18
19

Feels Like (°C)

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

Dew Point (°C)

13
12
10
9
8
9
9
9
11
13
13
12
12
14
15
16
17
17
17
17
17
16
15
15

Relative Humidity (%)

67
59
53
47
44
44
43
46
52
59
62
61
64
71
80
88
90
92
95
92
90
88
82
77

Pressure (mb)

1017
1017
1017
1017
1016
1016
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1013
1013
1012
1012
1012
1012
1012
1012

Ozone (du)

293
291
291
292
293
293
293
293
292
292
290
291
290
290
290
291
294
297
300
305
310
314
316
317

Friday 4

Third Quarter 39%

22:31

15:52

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 OK
01 OK
02 OK
03 OK
04 OK
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 06:22, Set: 19:43, Transit: 13:01. Moon - Rise: 22:31, Set: 15:52. Civil Dark: 20:18 - 05:47. Nautical Dark: 21:00 - 05:05. Astro Dark: 21:47 - 04:18

Total Clouds (% Sky Obscured)

99
99
98
88
79
70
78
84
86
79
71
62
54
45
35
25
23
21
44
68
91
87
82
78

Low Clouds (% Sky Obscured)

30
29
32
30
29
25
47
72
86
69
42
15
11
7
3
2
1
0
23
47
70
67
64
61

Medium Clouds (% Sky Obscured)

5
4
4
3
0
0
0
0
0
0
2
6
8
10
11
12
12
19
22
22
21
16
12
11

High Clouds (% Sky Obscured)

99
98
97
74
44
14
25
35
50
53
56
56
54
45
35
25
20
13
28
47
67
60
50
39

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

Precipitation Probability (%)

64
60
47
47
38
29
17
10
6
12
10
3
5
3
0
0
0
0
1
1
1
4
4
3

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

14
14
15
16
18
18
18
16
15
13
12
11
11
11
10
10
9
9
8
8
8
8
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
14
13
13
17
17
16
17
17
17
14
14
14
13
12
12
11
11
11
10
11
10
10
11

Dew Point (°C)

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

Relative Humidity (%)

72
67
60
55
53
52
49
53
56
60
62
66
68
72
74
78
79
80
81
77
76
72
67
61

Pressure (mb)

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

Ozone (du)

318
318
318
317
317
317
317
318
318
319
320
320
321
322
324
325
323
321
320
318
316
315
314
314

Saturday 5

Waning Crescent 28%

23:37

16:57

10 Bad
11 Bad
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
06 Bad

Sun - Rise: 06:23, Set: 19:40, Transit: 13:01. Moon - Rise: 23:37, Set: 16:57. Civil Dark: 20:15 - 05:49. Nautical Dark: 20:58 - 05:07. Astro Dark: 21:44 - 04:21

Total Clouds (% Sky Obscured)

67
54
46
56
63
70
74
78
82
77
69
66
65
71
73
79
79
62
49
50
54

Low Clouds (% Sky Obscured)

42
25
7
7
8
6
7
3
0
0
0
0
0
0
0
2
4
6
7
10
10

Medium Clouds (% Sky Obscured)

7
4
4
5
2
0
3
9
9
9
5
5
4
8
11
22
26
36
38
40
38

High Clouds (% Sky Obscured)

31
24
20
30
39
49
59
71
82
75
67
53
34
19
3
2
3
3
2
4
5

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
None

Precipitation Probability (%)

5
4
1
2
1
0
0
0
0
0
0
0
3
7
11
14
15
17
21
26
30

Precipitation Amount (mm)

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)

11
10
10
9
9
9
9
7
5
4
3
2
3
2
2
2
2
2
3
3
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

57
51
47
43
42
41
39
43
47
51
53
54
56
58
58
59
60
62
62
63
64

Pressure (mb)

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

Ozone (du)

314
312
311
309
308
307
305
304
303
302
300
299
297
296
295
294
294
295
295
296
296

Forecast for Loughton, Milton Keynes, United Kingdom (52.03,-0.77)

Generated: 30/08/26 10:00:38. Forecast: 30/08/26 to 05/09/26. Timezone: UTC+1.00