Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 30

Waning Gibbous 91%

20:26

10:17

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
16 Bad

Sun - Rise: 06:19, Set: 19:57, Transit: 13:07. Moon - Rise: 20:26, Set: 10:17. Civil Dark: 20:32 - 05:44. Nautical Dark: 21:15 - 05:01. Astro Dark: 22:03 - 04:14

Total Clouds (% Sky Obscured)

83
92
82
84
89
95
79
100
96
100
76
71
48
53
49
55
85
87
91
80
73
71
88
100

Low Clouds (% Sky Obscured)

36
64
32
45
49
46
52
36
59
86
76
69
48
51
49
49
78
62
72
74
73
55
79
64

Medium Clouds (% Sky Obscured)

30
80
80
9
8
12
79
32
26
55
1
5
5
6
1
8
18
20
21
3
0
0
0
0

High Clouds (% Sky Obscured)

83
25
25
70
75
91
56
100
80
100
2
2
9
14
12
0
0
0
0
0
0
15
61
100

ISS Passover

Visibility (miles)

9
4
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

Light Rain
Light Rain
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

Precipitation Probability (%)

55
95
22
15
29
62
68
21
25
23
24
1
0
0
1
1
2
21
15
10
8
22
27
3

Precipitation Amount (mm)

0.6
0.4
0
0
0
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
66
86
87
92
95
90
87
93
95
92
84
89
92
90
89
85
82
79
77
71
66
61
67

Pressure (mb)

1006
1006
1006
1006
1006
1006
1005
1005
1005
1005
1005
1005
1006
1007
1008
1009
1010
1011
1012
1013
1013
1014
1015
1015

Ozone (du)

326
324
328
329
329
329
332
336
336
337
338
337
337
338
338
337
335
331
328
328
325
324
321
318

Monday 31

Waning Gibbous 83%

20:39

11:40

17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 OK
01 Bad
02 Bad
03 OK
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

Sun - Rise: 06:20, Set: 19:55, Transit: 13:06. Moon - Rise: 20:39, Set: 11:40. Civil Dark: 20:29 - 05:45. Nautical Dark: 21:12 - 05:03. Astro Dark: 22:00 - 04:16

Total Clouds (% Sky Obscured)

100
100
100
97
96
93
67
30
72
52
48
72
75
73
86
74
81
81
76
83
84
100
100
100

Low Clouds (% Sky Obscured)

73
67
55
32
0
0
0
0
0
0
0
14
27
40
49
35
44
42
32
43
38
34
51
23

Medium Clouds (% Sky Obscured)

41
16
9
54
96
93
67
7
72
52
23
23
14
22
27
18
12
12
18
22
20
16
11
5

High Clouds (% Sky Obscured)

100
100
100
84
91
90
28
8
0
2
2
21
25
10
9
15
5
5
5
5
15
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 (%)

14
1
0
0
0
0
0
0
0
0
0
4
0
0
0
0
0
0
4
4
6
2
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
0
0
0
0

Wind Speed/Direction (mph)

14
13
12
9
7
7
5
4
5
4
5
5
5
5
5
7
9
12
12
12
13
13
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
68
66
65
71
74
76
79
81
79
83
87
90
93
92
86
75
67
61
56
52
48
46
45

Pressure (mb)

1016
1017
1017
1018
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020

Ozone (du)

315
314
314
313
314
315
316
314
314
313
314
312
311
311
312
313
313
314
316
316
316
317
317
318

Tuesday 1

Waning Gibbous 74%

20:56

13:06

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
16 Bad

Sun - Rise: 06:22, Set: 19:52, Transit: 13:06. Moon - Rise: 20:56, Set: 13:06. Civil Dark: 20:27 - 05:47. Nautical Dark: 21:10 - 05:05. Astro Dark: 21:57 - 04:18

Total Clouds (% Sky Obscured)

100
100
100
100
99
100
86
100
98
100
100
100
100
99
99
100
100
100
100
99
99
98
98
98

Low Clouds (% Sky Obscured)

50
8
10
9
9
12
13
22
37
19
25
2
19
25
42
37
56
61
78
64
79
93
97
95

Medium Clouds (% Sky Obscured)

15
16
65
43
63
57
79
92
78
76
92
100
100
83
98
95
94
84
34
61
95
29
95
96

High Clouds (% Sky Obscured)

100
100
100
100
98
100
39
99
88
100
100
100
97
94
89
99
99
100
100
91
85
79
74
55

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
8
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
1
6
24
26
24
16
0
0
7
15
13
16
17

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)

13
12
10
8
7
6
5
5
6
6
6
6
6
6
7
8
9
11
13
14
16
16
16
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
16
15
14
13
13
13
13
13
13
12
12
12
12
12
12
13
14
14
15
16
16
15
16

Dew Point (°C)

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

Relative Humidity (%)

50
56
62
70
75
84
86
89
87
87
90
90
92
89
90
79
73
82
73
74
63
72
78
81

Pressure (mb)

1020
1021
1021
1021
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020
1019

Ozone (du)

316
315
316
315
316
310
308
306
304
303
302
300
299
297
295
294
293
293
293
292
291
290
290
290

Wednesday 2

Waning Gibbous 63%

21:19

14:32

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
16 Bad

Sun - Rise: 06:23, Set: 19:50, Transit: 13:06. Moon - Rise: 21:19, Set: 14:32. Civil Dark: 20:25 - 05:49. Nautical Dark: 21:07 - 05:07. Astro Dark: 21:54 - 04:21

Total Clouds (% Sky Obscured)

98
98
99
99
100
96
92
89
91
93
95
96
97
99
99
90
99
85
73
95
69
70
84
84

Low Clouds (% Sky Obscured)

83
95
83
83
96
96
92
89
91
92
93
94
97
99
97
81
73
82
68
69
62
55
48
45

Medium Clouds (% Sky Obscured)

94
97
76
86
38
32
7
50
7
9
11
96
13
19
28
32
33
36
30
29
28
22
16
14

High Clouds (% Sky Obscured)

36
13
45
71
100
74
48
26
15
21
6
51
64
84
88
57
96
46
23
52
23
38
75
74

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 (%)

24
19
21
15
2
4
5
6
13
15
14
17
13
8
21
17
13
19
19
18
18
18
16
17

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
82
86
90
92
89
89
90
90
90
93
93
95
95
93
89
80
68
58
52
49
47
46
46

Pressure (mb)

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

Ozone (du)

290
290
290
289
290
290
290
290
289
290
289
290
290
289
289
289
289
289
288
288
288
287
289
290

Thursday 3

Waning Gibbous 51%

21:52

15:52

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
16 Bad

Sun - Rise: 06:25, Set: 19:48, Transit: 13:05. Moon - Rise: 21:52, Set: 15:52. Civil Dark: 20:22 - 05:51. Nautical Dark: 21:05 - 05:09. Astro Dark: 21:51 - 04:23

Total Clouds (% Sky Obscured)

66
56
56
63
69
94
96
94
96
98
100
100
100
100
100
100
100
100
100
100
96
94
91
96

Low Clouds (% Sky Obscured)

42
39
42
48
55
54
48
38
33
30
30
25
45
54
65
78
93
91
88
85
75
65
55
40

Medium Clouds (% Sky Obscured)

12
10
11
12
9
75
81
14
11
8
9
9
14
14
36
58
80
83
87
90
92
94
91
94

High Clouds (% Sky Obscured)

50
47
47
53
50
54
77
70
79
88
100
100
100
100
100
100
100
97
94
91
71
50
30
60

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
None
None
None
None

Precipitation Probability (%)

19
19
19
12
8
9
4
2
7
10
7
19
28
35
16
24
29
41
47
51
43
33
18
14

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
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
21
20
19
18
18
18
18
18
18
17
18
18
18
18
18
19
20
20
20
20
20
20
20

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

50
57
64
72
80
85
82
82
83
86
89
88
89
90
92
90
86
85
82
80
77
72
70
67

Pressure (mb)

1017
1016
1016
1016
1016
1016
1016
1015
1014
1014
1013
1012
1012
1012
1011
1013
1013
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

289
288
287
287
287
286
288
289
289
288
289
289
289
289
290
291
291
292
292
293
294
297
299
302

Friday 4

Third Quarter 39%

22:39

16:57

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
16 Bad

Sun - Rise: 06:26, Set: 19:46, Transit: 13:05. Moon - Rise: 22:39, Set: 16:57. Civil Dark: 20:20 - 05:52. Nautical Dark: 21:02 - 05:11. Astro Dark: 21:48 - 04:25

Total Clouds (% Sky Obscured)

98
100
99
99
98
99
99
99
99
99
100
89
80
70
79
88
98
95
93
91
85
79
74
78

Low Clouds (% Sky Obscured)

26
13
10
5
1
1
0
0
0
0
0
0
0
2
2
6
7
7
6
6
10
14
19
16

Medium Clouds (% Sky Obscured)

92
90
82
70
57
39
21
3
2
1
0
5
5
5
5
4
4
0
0
3
2
2
1
7

High Clouds (% Sky Obscured)

87
100
94
96
94
95
97
98
98
98
100
88
75
66
68
73
78
71
64
62
64
62
60
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
None
None
None
None
None

Precipitation Probability (%)

10
5
6
5
1
1
1
0
0
0
0
7
11
13
19
23
24
20
12
2
2
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
73
76
75
77
76
79
82
84
86
90
92
92
92
92
82
71
62
57
53
48
45
43
42

Pressure (mb)

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

Ozone (du)

304
306
307
309
310
312
313
313
314
317
320
322
321
320
319
319
319
318
318
317
317
315
314
312

Saturday 5

Waning Crescent 28%

23:46

16:57

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: 06:28, Set: 19:43, Transit: 13:05. Moon - Rise: 23:46, Set: 16:57. Civil Dark: 20:18 - 05:54. Nautical Dark: 20:59 - 05:12. Astro Dark: 21:45 - 04:27

Total Clouds (% Sky Obscured)

84
92
95
95
96
97
99
100
98
96
94
92
86
77
73
71
73
75
77
80

Low Clouds (% Sky Obscured)

15
12
9
7
4
2
1
1
1
0
0
3
3
4
4
4
4
4
3
2

Medium Clouds (% Sky Obscured)

10
19
19
20
15
15
15
20
24
24
18
18
14
9
7
9
12
13
15
14

High Clouds (% Sky Obscured)

65
71
60
49
39
58
77
96
69
43
16
23
29
31
37
41
46
55
64
73

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
10
17
22
23
26
27
27
27
17
17
17
15
17
15
4

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

45
48
52
58
64
70
72
72
73
73
75
76
76
76
76
66
57
49
45
40

Pressure (mb)

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

Ozone (du)

312
312
312
311
309
308
307
306
305
303
301
299
298
297
297
296
295
295
295
294

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

Generated: 30/08/26 17:05:10. Forecast: 30/08/26 to 05/09/26. Timezone: UTC+1.00