Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 27

Waning Gibbous 98%

19:03

09:22

20 OK
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
17 Bad
18 Bad
19 Bad

Sun - Rise: 07:03, Set: 18:51, Transit: 12:57. Moon - Rise: 19:03, Set: 09:22. Civil Dark: 19:24 - 06:30. Nautical Dark: 20:05 - 05:51. Astro Dark: 20:45 - 05:11

Total Clouds (% Sky Obscured)

24
53
51
58
80
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
93
100
100

Low Clouds (% Sky Obscured)

14
20
20
8
5
9
12
8
1
13
25
25
18
2
4
13
18
16
15
16
15
0
3
0

Medium Clouds (% Sky Obscured)

24
29
23
58
37
94
100
90
78
82
0
11
84
79
92
100
96
23
63
54
54
62
65
65

High Clouds (% Sky Obscured)

24
50
50
58
63
87
74
94
100
100
100
100
100
100
100
100
100
100
100
100
100
93
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 (%)

2
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
93
96
95
95
93
93
91
91
91
91
90
87
80
71
63
57
48
44
41
45
51
56
59

Pressure (mb)

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

Ozone (du)

291
292
293
294
297
299
299
300
298
299
301
300
302
305
307
307
308
308
308
309
309
309
308
308

Monday 28

Waning Gibbous 93%

19:24

10:49

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
17 Bad
18 OK
19 Bad

Sun - Rise: 07:05, Set: 18:48, Transit: 12:57. Moon - Rise: 19:24, Set: 10:49. Civil Dark: 19:21 - 06:32. Nautical Dark: 20:03 - 05:53. Astro Dark: 20:43 - 05:13

Total Clouds (% Sky Obscured)

98
99
100
100
100
85
88
85
85
93
93
99
98
92
96
97
70
100
100
100
63
62
18
23

Low Clouds (% Sky Obscured)

3
16
12
20
46
69
85
80
78
89
88
96
96
82
93
95
70
68
39
42
53
27
3
0

Medium Clouds (% Sky Obscured)

60
60
60
81
65
28
14
18
19
8
20
37
27
20
29
16
9
14
0
1
6
5
3
7

High Clouds (% Sky Obscured)

98
98
99
100
100
40
0
0
0
4
0
16
5
26
54
24
38
100
100
100
55
58
9
13

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
0
0
1
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

1
3
2
0
0
3
9
18
22
11
9
35
21
7
2
0
1
0
1
1
1
3
9
33

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
14
13
13
13
13
13
13
13
13
14
14
14
15
16
18
20
21
22
23
23
22
21
20

Feels Like (°C)

11
10
10
11
12
11
12
11
12
11
11
12
12
13
15
17
19
20
21
21
20
19
19
19

Dew Point (°C)

6
7
9
10
11
12
13
12
13
13
13
13
13
14
15
15
16
17
16
17
16
16
17
18

Relative Humidity (%)

57
65
76
83
90
95
98
96
98
98
96
93
93
93
90
85
81
77
68
67
67
70
76
89

Pressure (mb)

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

Ozone (du)

307
308
309
310
314
319
317
309
305
303
302
301
301
299
299
298
298
297
296
296
291
289
289
288

Tuesday 29

Waning Gibbous 86%

19:54

12:17

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

Sun - Rise: 07:06, Set: 18:46, Transit: 12:56. Moon - Rise: 19:54, Set: 12:17. Civil Dark: 19:19 - 06:33. Nautical Dark: 19:58 - 05:55. Astro Dark: 20:40 - 05:15

Total Clouds (% Sky Obscured)

52
63
82
89
100
100
100
100
97
100
100
100
100
100
100
40
24
56
27
27
28
25
27
25

Low Clouds (% Sky Obscured)

11
0
0
0
0
68
72
65
79
90
92
95
89
90
75
40
19
19
21
21
24
23
25
24

Medium Clouds (% Sky Obscured)

6
12
12
73
100
100
93
93
95
100
100
100
96
91
23
15
3
56
3
4
6
5
3
0

High Clouds (% Sky Obscured)

36
52
67
79
100
100
100
98
71
53
99
55
60
62
62
2
2
0
0
0
0
0
2
2

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
6
4
9
4
3
3
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
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

19
2
10
18
4
23
47
95
72
84
95
95
95
52
6
1
1
1
0
0
5
11
15
13

Precipitation Amount (mm)

0
0
0
0
0
0
0
1.1
0.3
0.4
1.2
0.7
0.9
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
19
19
19
20
20
19
19
19
18
18
18
17
17
17
18
20
21
20
20
20
19
17
16

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
86
84
81
82
78
85
90
95
95
93
95
96
90
83
86
66
57
49
48
51
56
64
73

Pressure (mb)

1010
1010
1009
1009
1008
1007
1007
1006
1006
1006
1006
1007
1007
1008
1009
1009
1010
1010
1010
1011
1011
1011
1012
1013

Ozone (du)

286
286
285
282
280
280
278
278
279
280
280
281
283
285
286
289
290
291
292
293
294
296
296
296

Wednesday 30

Waning Gibbous 76%

19:54

13:41

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

Sun - Rise: 07:08, Set: 18:44, Transit: 12:56. Moon - Rise: 19:54, Set: 13:41. Civil Dark: 19:17 - 06:35. Nautical Dark: 19:56 - 05:56. Astro Dark: 20:38 - 05:17

Total Clouds (% Sky Obscured)

27
24
26
60
85
89
73
58
54
28
26
19
9
3
9
15
25
63
69
72
76
70
28
24

Low Clouds (% Sky Obscured)

24
24
26
34
37
34
33
31
26
24
21
13
7
2
6
11
15
15
20
21
10
6
0
2

Medium Clouds (% Sky Obscured)

3
4
4
38
67
75
56
42
39
3
3
3
0
0
0
0
0
3
54
70
52
51
3
0

High Clouds (% Sky Obscured)

3
0
0
0
0
3
3
0
0
0
0
0
0
0
0
0
2
45
50
55
68
17
25
20

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

11
1
2
26
47
28
9
6
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
90
93
93
95
96
92
92
92
95
93
93
90
81
75
66
58
49
46
46
49
54
59
68

Pressure (mb)

1014
1014
1015
1015
1015
1016
1016
1017
1017
1018
1019
1020
1021
1022
1023
1023
1023
1023
1024
1024
1024
1024
1025
1025

Ozone (du)

296
302
302
303
305
306
307
311
313
313
313
317
321
317
316
311
307
305
302
300
300
301
303
304

Thursday 1

Waning Gibbous 66%

20:37

14:51

20 OK
21 OK
22 OK
23 OK
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

Sun - Rise: 07:10, Set: 18:42, Transit: 12:56. Moon - Rise: 20:37, Set: 14:51. Civil Dark: 19:15 - 06:37. Nautical Dark: 19:53 - 05:58. Astro Dark: 20:35 - 05:18

Total Clouds (% Sky Obscured)

21
23
33
48
63
79
92
89
83
66
40
51
66
81
87
92
98
90
82
72
73
75
74
76

Low Clouds (% Sky Obscured)

4
9
8
14
16
21
26
31
28
25
22
36
44
56
62
68
73
58
42
27
30
34
35
30

Medium Clouds (% Sky Obscured)

0
0
12
23
35
26
24
12
12
12
12
4
3
3
2
1
0
3
7
10
5
3
0
7

High Clouds (% Sky Obscured)

17
13
23
33
54
60
63
40
40
18
0
22
40
58
64
72
77
71
64
61
61
61
62
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
1
0
0
0
0
0
1
4
3
6
10
7
22
25
26
24
17
3
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
12
11
11
10
10
10
9
9
9
10
11
11
12
12
12
12
12
17
18
17
18
19
19

Dew Point (°C)

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

Relative Humidity (%)

75
80
86
87
89
89
90
89
90
90
93
93
90
87
83
75
66
59
55
52
48
54
61
68

Pressure (mb)

1026
1026
1027
1027
1027
1026
1027
1026
1026
1027
1027
1027
1027
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028

Ozone (du)

306
306
306
306
306
306
307
307
308
309
311
310
308
306
304
303
303
302
302
301
301
300
298
297

Friday 2

Waning Gibbous 54%

21:38

15:43

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
17 Bad
18 Bad
19 Bad

Sun - Rise: 07:11, Set: 18:39, Transit: 12:55. Moon - Rise: 21:38, Set: 15:43. Civil Dark: 19:12 - 06:38. Nautical Dark: 19:51 - 06:00. Astro Dark: 20:33 - 05:20

Total Clouds (% Sky Obscured)

82
90
93
97
99
93
86
80
85
89
91
88
85
80
73
65
56
59
65
67
78
90
100
99

Low Clouds (% Sky Obscured)

23
18
18
15
14
14
14
14
17
17
21
21
21
25
19
14
9
8
8
12
8
4
0
0

Medium Clouds (% Sky Obscured)

13
25
24
24
29
27
25
19
12
9
4
2
3
2
2
2
1
20
42
63
72
84
92
86

High Clouds (% Sky Obscured)

82
90
93
97
99
76
53
30
27
31
35
32
29
31
24
37
40
53
56
60
76
89
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
0
0
0
1
2
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
3
4
4
4
4
4
4
4
4
4
4
5
5
6
7
7
7
7
6
6
5
4
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
76
79
84
87
92
92
93
93
95
93
95
90
87
83
73
64
57
52
48
43
47
51
57

Pressure (mb)

1029
1029
1029
1029
1029
1028
1028
1028
1027
1027
1027
1027
1026
1026
1026
1026
1025
1025
1024
1023
1023
1022
1022
1022

Ozone (du)

297
296
296
296
296
296
295
295
294
294
293
293
293
293
292
292
292
292
292
293
293
293
294
294

Saturday 3

Third Quarter 42%

22:54

16:19

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: 07:13, Set: 18:37, Transit: 12:55. Moon - Rise: 22:54, Set: 16:19. Civil Dark: 19:10 - 06:40. Nautical Dark: 19:49 - 06:01. Astro Dark: 20:31 - 05:22

Total Clouds (% Sky Obscured)

98
97
98
99
100
99
99
98
95
92
90
91
91
91
79
69
61

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
1
1
1
1
1
7
13
20

Medium Clouds (% Sky Obscured)

79
72
84
93
99
92
85
78
75
73
71
52
34
16
11
7
2

High Clouds (% Sky Obscured)

98
97
98
99
100
98
96
94
74
58
44
67
79
86
72
63
54

ISS Passover

Visibility (miles)

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

Precipitation Type

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
1
0
0
1
0
0
2
0
0

Precipitation Amount (mm)

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
2
2
3
3
3
3
3
4
4
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

60
63
68
70
72
75
76
76
75
77
80
81
77
71
67
63
61

Pressure (mb)

1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021
1022
1022
1022
1022
1022

Ozone (du)

295
295
296
297
297
298
297
297
297
298
299
300
300
301
301
301
302

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

Generated: 27/09/26 20:30:00. Forecast: 27/09/26 to 03/10/26. Timezone: UTC+1.00