Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 30

Waning Gibbous 91%

20:35

10:13

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 06:14, Set: 19:51, Transit: 13:02. Moon - Rise: 20:35, Set: 10:13. Civil Dark: 20:26 - 05:39. Nautical Dark: 21:09 - 04:56. Astro Dark: 21:57 - 04:08

Total Clouds (% Sky Obscured)

85
72
91
94
90
88
81
66
74
82
85
93
89
85
88
80
81
92
100
100
100
100
65
91

Low Clouds (% Sky Obscured)

39
38
48
59
84
85
81
58
60
52
85
83
72
74
70
73
63
67
60
49
19
9
14
7

Medium Clouds (% Sky Obscured)

0
4
14
8
10
1
2
5
18
15
0
18
25
19
22
0
10
12
0
0
69
67
65
70

High Clouds (% Sky Obscured)

1
20
91
91
14
1
7
3
14
28
2
0
0
0
0
0
0
38
100
100
100
100
25
77

ISS Passover

Visibility (miles)

9
9
7
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 (%)

10
28
23
17
6
8
2
0
0
0
0
10
30
30
4
3
1
13
12
1
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
9
8
12
11
12
12
11
11
13
14
15
14
15
15
15
14
14
14
13
13
10
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
92
93
92
92
87
86
86
90
89
83
77
74
72
70
63
59
63
60
63
66
72
74
73

Pressure (mb)

1005
1005
1005
1005
1005
1005
1005
1006
1007
1008
1009
1010
1010
1011
1012
1013
1013
1014
1015
1015
1016
1017
1018
1019

Ozone (du)

332
337
338
340
340
338
336
336
338
338
338
338
335
332
330
327
324
321
319
317
315
315
316
316

Monday 31

Waning Gibbous 83%

20:51

11:37

23 Bad
00 Bad
01 Bad
02 Bad
03 OK
04 OK
05 OK
06 Bad
07 OK
08 OK
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

Sun - Rise: 06:16, Set: 19:49, Transit: 13:02. Moon - Rise: 20:51, Set: 11:37. Civil Dark: 20:24 - 05:41. Nautical Dark: 21:07 - 04:58. Astro Dark: 21:54 - 04:10

Total Clouds (% Sky Obscured)

89
100
52
61
47
29
33
49
40
24
59
75
73
84
91
83
90
100
75
82
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
20
40
28
29
60
75
79
92
7
6
0
0
0
0

Medium Clouds (% Sky Obscured)

81
93
43
48
47
8
8
10
11
10
20
16
11
33
41
27
23
20
25
20
20
26
81
99

High Clouds (% Sky Obscured)

77
99
36
44
3
3
10
26
17
9
38
37
24
40
2
2
34
99
75
82
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
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
2
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
5
4
4
4
4
4
4
4
5
7
8
9
11
11
11
10
11
11
10
8
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
9
8
8
9
9
9
8
8
9
9
10
8
8
9
9
9
11
9
8
9
10
11
10

Relative Humidity (%)

72
77
77
81
84
85
87
87
84
75
69
64
53
50
48
48
49
54
48
47
53
64
68
69

Pressure (mb)

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

Ozone (du)

317
317
316
314
313
313
312
312
312
312
313
314
314
316
318
318
317
317
318
317
314
314
315
316

Tuesday 1

Waning Gibbous 74%

21:13

13:03

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 06:17, Set: 19:47, Transit: 13:02. Moon - Rise: 21:13, Set: 13:03. Civil Dark: 20:21 - 05:42. Nautical Dark: 21:04 - 05:00. Astro Dark: 21:51 - 04:13

Total Clouds (% Sky Obscured)

100
98
100
100
100
100
100
97
100
99
98
100
99
95
84
100
100
100
100
99
78
78
77
87

Low Clouds (% Sky Obscured)

0
5
9
12
18
23
36
23
42
72
51
78
74
75
70
99
83
66
86
67
55
52
52
70

Medium Clouds (% Sky Obscured)

100
98
98
71
42
16
41
51
97
95
97
100
81
94
83
46
46
47
27
14
13
14
15
11

High Clouds (% Sky Obscured)

100
82
100
100
100
100
100
30
21
61
32
20
1
14
16
24
93
100
100
97
65
73
73
69

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
1
15
25
36
34
21
12
15
17
19
14
10
2
0
1
7
0
1
3
8
7

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
6
6
6
8
9
10
11
12
15
14
15
13
14
14
11
11
10
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
76
79
83
87
86
90
92
90
78
73
66
75
78
58
56
63
71
72
76
80
86
90
95

Pressure (mb)

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

Ozone (du)

315
312
308
306
306
303
301
299
297
295
293
295
296
295
294
293
293
293
293
292
292
292
292
292

Wednesday 2

Waning Gibbous 63%

21:46

14:30

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 06:19, Set: 19:44, Transit: 13:02. Moon - Rise: 21:46, Set: 14:30. Civil Dark: 20:19 - 05:44. Nautical Dark: 21:01 - 05:02. Astro Dark: 21:48 - 04:15

Total Clouds (% Sky Obscured)

89
84
84
94
96
97
98
98
99
99
100
100
93
100
98
97
95
85
79
94
92
60
63
78

Low Clouds (% Sky Obscured)

70
60
71
76
72
79
90
88
91
82
68
85
64
46
42
44
53
53
44
32
41
42
41
40

Medium Clouds (% Sky Obscured)

11
15
9
10
42
69
67
51
14
14
34
32
27
22
27
29
34
25
20
19
18
13
8
12

High Clouds (% Sky Obscured)

63
57
39
32
18
23
25
27
28
43
52
43
21
32
31
31
36
28
31
62
55
12
17
32

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 (%)

6
2
4
4
1
14
8
8
26
41
42
47
49
47
35
26
26
13
12
12
8
6
6
4

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

Chance of Frost

Temperature (°C)

17
17
17
17
17
17
17
17
17
18
19
19
20
21
22
22
23
23
22
22
21
20
20
19

Feels Like (°C)

16
15
16
16
16
15
16
16
15
16
16
16
17
17
18
18
17
18
18
19
18
18
19
18

Dew Point (°C)

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

Relative Humidity (%)

96
93
93
93
93
93
93
92
93
89
81
69
62
54
49
46
44
46
47
51
58
64
70
76

Pressure (mb)

1019
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1019
1019
1018
1018
1018
1018
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

292
291
291
290
289
288
288
289
289
288
287
287
288
286
286
286
286
287
287
286
286
286
287
286

Thursday 3

Waning Gibbous 51%

22:33

15:49

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

Sun - Rise: 06:20, Set: 19:42, Transit: 13:01. Moon - Rise: 22:33, Set: 15:49. Civil Dark: 20:17 - 05:46. Nautical Dark: 20:59 - 05:04. Astro Dark: 21:45 - 04:17

Total Clouds (% Sky Obscured)

55
68
84
68
73
78
95
93
93
92
86
95
97
100
98
97
96
97
98
99
83
65
48
40

Low Clouds (% Sky Obscured)

37
34
55
56
63
67
92
92
90
92
74
80
41
22
20
17
15
15
15
15
8
4
0
0

Medium Clouds (% Sky Obscured)

12
46
66
9
7
7
8
29
73
6
15
90
91
98
97
94
93
92
92
95
67
35
0
0

High Clouds (% Sky Obscured)

7
1
2
2
0
1
0
0
15
31
49
77
82
89
79
72
63
71
80
89
77
62
45
35

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

3
2
1
0
0
3
23
28
47
58
43
29
24
29
59
50
31
22
17
6
6
4
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
18
18
18
18
18
18
18
18
19
20
20
20
21
21
21
21
20
20
19
19
18
16
15

Feels Like (°C)

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

Dew Point (°C)

15
15
16
16
17
16
16
16
16
16
17
17
15
12
8
8
8
7
8
9
10
10
11
11

Relative Humidity (%)

80
81
83
86
89
86
86
85
88
82
84
81
70
56
43
43
43
42
46
51
55
62
69
78

Pressure (mb)

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

Ozone (du)

286
285
286
286
287
288
289
288
290
291
292
293
295
297
297
299
301
304
308
312
316
319
323
326

Friday 4

Third Quarter 39%

No Rise

16:54

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

Sun - Rise: 06:22, Set: 19:40, Transit: 13:01. Moon - Rise: No Rise, Set: 16:54. Civil Dark: 20:14 - 05:48. Nautical Dark: 20:56 - 05:05. Astro Dark: 21:42 - 04:20

Total Clouds (% Sky Obscured)

24
10
10
10
15
23
23
32
35
33
32
25
19
13
13
10
10
20
28
38
34
33
30
31

Low Clouds (% Sky Obscured)

0
0
0
1
3
3
4
3
2
0
0
0
0
0
0
1
1
1
1
2
1
1
0
0

Medium Clouds (% Sky Obscured)

0
4
4
4
4
8
8
8
18
20
23
17
8
0
0
0
0
5
8
12
12
10
8
7

High Clouds (% Sky Obscured)

24
10
10
10
5
5
3
0
0
0
0
0
0
0
0
0
0
11
21
32
25
19
12
14

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
2
3
4
5
4
1
2
1
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
8
8
9
9
9
9
9
8
9
10
11
11
11
11
10
10
9
7
6
4
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
80
83
83
84
83
83
83
86
75
66
57
52
47
43
40
36
34
37
40
44
49
56
63

Pressure (mb)

1017
1017
1018
1018
1019
1019
1020
1020
1021
1022
1022
1023
1023
1024
1024
1024
1024
1025
1025
1025
1026
1026
1027
1027

Ozone (du)

330
334
338
338
338
339
335
332
328
329
330
331
330
330
329
326
324
321
319
317
315
314
312
311

Saturday 5

Waning Crescent 28%

23:39

17:41

23 OK
00 OK
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 OK
16 OK
17 OK
18 OK

Sun - Rise: 06:24, Set: 19:37, Transit: 13:01. Moon - Rise: 23:39, Set: 17:41. Civil Dark: 20:12 - 05:49. Nautical Dark: 20:54 - 05:07. Astro Dark: 21:39 - 04:22

Total Clouds (% Sky Obscured)

34
36
52
68
84
88
93
100
97
94
91
91
95
97
92
69
44
37
25
21

Low Clouds (% Sky Obscured)

0
0
0
0
0
3
5
8
8
5
2
1
1
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

6
3
3
3
5
6
7
8
9
7
4
4
3
7
11
11
20
24
22
17

High Clouds (% Sky Obscured)

17
16
30
41
45
63
82
100
93
86
80
79
82
90
88
69
44
37
25
21

ISS Passover

Visibility (miles)

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

Precipitation Type

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
5
10
16
16
13
3
3
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
14
14
10
10
10
10
10
9
10
11
11
11
12
11
18
17
16
17
18

Dew Point (°C)

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

Relative Humidity (%)

65
70
72
75
76
78
77
77
76
68
59
52
45
40
33
31
29
27
32
37

Pressure (mb)

1027
1027
1028
1028
1027
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1025
1025
1024
1024
1023

Ozone (du)

309
308
307
306
306
305
303
301
299
300
300
300
298
297
295
294
293
292
290
289

Forecast for Great Missenden, Buckinghamshire, United Kingdom (51.70,-0.70)

Generated: 30/08/26 23:16:58. Forecast: 30/08/26 to 05/09/26. Timezone: UTC+1.00