Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 6%

03:40

18:16

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
10 Bad
11 OK
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 06:45, Set: 19:10, Transit: 12:56. Moon - Rise: 03:40, Set: 18:16. Civil Dark: 19:43 - 06:11. Nautical Dark: 20:24 - 05:31. Astro Dark: 21:06 - 04:49

Total Clouds (% Sky Obscured)

81
81
92
78
92
97
99
100
100
100
99
98
90
79
66
78
97
76
53
42
88
90
100
100

Low Clouds (% Sky Obscured)

56
64
72
73
50
52
59
58
61
79
77
63
56
59
53
67
96
71
39
35
36
40
77
37

Medium Clouds (% Sky Obscured)

15
0
0
31
43
41
66
58
81
92
78
55
82
22
29
52
55
40
53
42
80
4
3
5

High Clouds (% Sky Obscured)

20
81
58
42
78
89
98
100
100
100
91
58
59
49
50
54
18
43
53
42
88
90
99
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
1
0
0
1
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)

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

Chance of Frost

Temperature (°C)

21
20
20
19
18
18
17
17
16
16
16
16
16
16
15
15
16
17
18
20
21
22
23
23

Feels Like (°C)

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

Dew Point (°C)

14
15
15
15
16
16
16
16
15
15
15
15
15
15
15
14
14
14
14
14
14
13
11
9

Relative Humidity (%)

66
70
72
78
83
90
93
95
93
95
95
95
95
95
95
95
90
82
73
68
61
54
45
40

Pressure (mb)

1017
1017
1018
1018
1019
1019
1019
1019
1020
1020
1020
1019
1019
1018
1018
1019
1019
1019
1019
1018
1017
1017
1016
1015

Ozone (du)

259
259
259
257
257
258
257
255
255
256
257
258
257
258
259
259
258
256
256
256
258
257
256
258

Friday 19

Waning Crescent 2%

04:59

18:30

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

Sun - Rise: 06:47, Set: 19:07, Transit: 12:56. Moon - Rise: 04:59, Set: 18:30. Civil Dark: 19:41 - 06:13. Nautical Dark: 20:21 - 05:33. Astro Dark: 21:03 - 04:51

Total Clouds (% Sky Obscured)

99
96
98
100
100
100
100
100
99
100
100
100
100
99
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

45
63
59
36
42
38
12
15
25
28
29
26
34
39
58
59
46
41
47
56
51
46
40
29

Medium Clouds (% Sky Obscured)

22
3
24
21
0
0
0
0
1
2
2
12
76
96
88
67
35
33
47
88
83
70
69
92

High Clouds (% Sky Obscured)

98
94
97
100
100
100
100
94
86
100
100
100
100
98
100
100
96
100
100
100
100
100
100
80

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
0
1
14
14
19
15
7
7
12

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
11
9
8
7
7
7
7
6
5
5
6
6
6
6
6
9
10
11
14
14
16
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

43
44
51
59
65
68
71
72
71
73
73
71
71
67
69
71
74
72
69
65
63
60
53
59

Pressure (mb)

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

Ozone (du)

259
260
260
262
264
264
263
264
266
266
265
264
265
265
266
265
266
265
263
263
262
263
265
267

Saturday 20

Waning Crescent 0%

06:15

18:40

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

Sun - Rise: 06:48, Set: 19:05, Transit: 12:56. Moon - Rise: 06:15, Set: 18:40. Civil Dark: 19:39 - 06:15. Nautical Dark: 20:19 - 05:35. Astro Dark: 21:01 - 04:53

Total Clouds (% Sky Obscured)

100
51
84
33
60
24
54
40
38
47
49
45
47
58
60
64
87
84
72
73
73
81
91
97

Low Clouds (% Sky Obscured)

82
51
70
33
60
24
52
40
38
47
49
45
47
58
60
64
87
76
58
53
62
74
83
94

Medium Clouds (% Sky Obscured)

78
19
32
0
0
0
0
0
0
0
0
0
0
0
0
0
6
17
26
23
19
26
35
41

High Clouds (% Sky Obscured)

63
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 (%)

17
7
23
3
0
0
11
2
0
0
0
0
0
3
2
1
0
0
1
0
0
2
2
3

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)

18
19
19
19
17
16
16
15
14
13
14
13
12
11
9
8
6
8
9
10
10
10
11
11

Chance of Frost

Temperature (°C)

20
18
18
17
15
13
12
12
11
11
11
11
11
11
10
10
10
11
12
13
13
14
13
13

Feels Like (°C)

15
13
13
13
11
10
9
7
8
8
8
8
9
10
10
10
10
10
10
11
10
10
9
9

Dew Point (°C)

14
13
12
13
12
10
10
8
8
8
7
8
9
10
10
10
8
6
5
5
5
5
4
3

Relative Humidity (%)

69
70
70
79
82
80
84
79
79
80
77
84
90
93
96
96
87
71
62
58
57
54
54
51

Pressure (mb)

1005
1005
1004
1005
1006
1007
1008
1008
1008
1008
1008
1008
1008
1008
1009
1010
1011
1012
1013
1014
1014
1015
1015
1015

Ozone (du)

271
272
278
282
284
286
287
291
295
298
298
296
297
297
298
298
299
300
302
304
304
304
304
304

Sunday 21

New Moon 1%

07:28

18:50

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

Sun - Rise: 06:50, Set: 19:03, Transit: 12:55. Moon - Rise: 07:28, Set: 18:50. Civil Dark: 19:36 - 06:16. Nautical Dark: 20:16 - 05:37. Astro Dark: 20:58 - 04:55

Total Clouds (% Sky Obscured)

96
96
95
93
92
86
92
93
95
68
45
42
38
33
45
50
47
44
42
40
53
53
51
52

Low Clouds (% Sky Obscured)

84
76
67
54
41
18
31
42
54
48
45
42
38
33
45
49
44
37
36
33
53
53
51
52

Medium Clouds (% Sky Obscured)

44
47
55
55
57
53
52
52
49
43
38
27
26
28
33
30
26
20
15
7
0
3
6
7

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
3
2
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
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 (%)

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

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
8
8
7
7
7
6
5
5
5
5
6
5
5
5
4
6
6
8
9
10
10
9
10

Dew Point (°C)

3
2
2
4
5
5
5
5
4
4
4
4
4
4
4
4
5
4
4
3
3
4
3
3

Relative Humidity (%)

48
48
48
59
65
68
71
67
67
68
70
73
74
74
75
81
79
69
61
55
51
49
49
46

Pressure (mb)

1016
1016
1017
1018
1018
1019
1020
1020
1020
1021
1021
1021
1021
1022
1022
1023
1023
1024
1024
1024
1024
1024
1024
1024

Ozone (du)

306
307
308
309
311
312
314
313
314
314
314
315
316
317
317
316
317
316
315
312
311
310
310
310

Monday 22

Waxing Crescent 3%

08:41

18:59

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

Sun - Rise: 06:52, Set: 19:00, Transit: 12:55. Moon - Rise: 08:41, Set: 18:59. Civil Dark: 19:34 - 06:18. Nautical Dark: 20:14 - 05:38. Astro Dark: 20:55 - 04:57

Total Clouds (% Sky Obscured)

51
42
25
19
8
3
12
21
31
33
33
33
38
45
49
58
60
69
84
92
98
98
99
100

Low Clouds (% Sky Obscured)

47
37
24
17
7
0
10
20
30
32
33
33
38
45
49
25
21
18
39
59
80
78
75
71

Medium Clouds (% Sky Obscured)

3
2
0
0
0
1
2
2
1
1
1
2
2
2
2
46
36
35
35
36
41
45
60
65

High Clouds (% Sky Obscured)

0
1
0
2
2
2
2
2
1
1
1
1
3
4
5
44
22
2
2
3
4
5
6
7

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
Very Light Rain

Precipitation Probability (%)

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
26
27
20
42
51
55

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
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
10
10
10
9
9
7
6
6
6
6
6
5
5
5
5
5
5
5
6
7
7
12
11

Dew Point (°C)

3
4
4
4
4
3
3
2
2
2
2
2
2
2
3
3
4
4
4
4
4
4
4
4

Relative Humidity (%)

49
53
54
63
65
67
68
65
66
69
72
75
75
76
79
81
74
68
62
59
56
52
53
55

Pressure (mb)

1024
1025
1025
1025
1026
1026
1027
1027
1027
1027
1026
1026
1026
1027
1027
1027
1026
1026
1026
1026
1025
1025
1025
1025

Ozone (du)

310
308
307
305
304
303
303
302
301
301
302
301
300
300
300
300
300
301
301
302
302
303
303
302

Tuesday 23

Waxing Crescent 7%

09:55

19:09

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

Sun - Rise: 06:53, Set: 18:58, Transit: 12:55. Moon - Rise: 09:55, Set: 19:09. Civil Dark: 19:32 - 06:20. Nautical Dark: 20:11 - 05:40. Astro Dark: 20:53 - 04:59

Total Clouds (% Sky Obscured)

100
100
100
100
96
85
80
80
76
76
76
86
91
96
100
100
100
97
97
98
99
97
94
93

Low Clouds (% Sky Obscured)

73
76
81
81
81
81
80
80
76
76
76
81
78
70
59
66
70
74
65
61
55
58
60
61

Medium Clouds (% Sky Obscured)

70
65
50
40
25
20
20
20
25
40
50
70
75
70
65
59
43
42
33
29
30
29
33
27

High Clouds (% Sky Obscured)

27
45
65
70
75
80
80
80
76
69
47
26
17
9
1
27
51
76
77
77
76
65
59
52

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

Precipitation Probability (%)

54
57
60
62
67
72
79
86
92
93
95
95
95
88
83
71
59
45
40
33
26
27
29
33

Precipitation Amount (mm)

0
0
0
0.3
0.4
0.5
0.6
0.6
0.7
0.7
0.8
1
0.9
0.7
0.6
0.4
0.3
0.2
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
4
4
5
6
6
7
7
7
7
7
7
7
7
7
7
7
6
6
5
5
4
3
3

Relative Humidity (%)

55
58
63
67
72
77
84
84
87
88
90
90
91
91
90
90
81
72
65
60
56
50
48
45

Pressure (mb)

1024
1024
1025
1025
1025
1025
1025
1025
1025
1025
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024

Ozone (du)

302
302
302
302
302
302
302
303
304
305
306
306
307
308
309
310
310
310
310
310
310
310
310
310

Wednesday 24

Waxing Crescent 13%

11:09

19:21

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
10 Bad
11 Bad
12 Bad

Sun - Rise: 06:55, Set: 18:56, Transit: 12:54. Moon - Rise: 11:09, Set: 19:21. Civil Dark: 19:29 - 06:21. Nautical Dark: 20:09 - 05:42. Astro Dark: 20:50 - 05:01

Total Clouds (% Sky Obscured)

94
89
87
91
91
90
97
97
99
99
99
100
100
100
100
100
100
100
92
86
77

Low Clouds (% Sky Obscured)

60
61
57
63
70
76
72
75
78
83
87
92
96
98
99
99
100
100
79
64
48

Medium Clouds (% Sky Obscured)

19
19
15
14
14
18
18
19
25
30
30
30
25
25
24
25
35
35
39
38
42

High Clouds (% Sky Obscured)

53
48
44
48
58
62
64
70
79
89
90
91
94
97
97
97
97
97
66
37
16

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

Precipitation Probability (%)

32
26
17
23
28
27
28
25
23
35
42
46
55
62
69
63
59
56
51
41
16

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.4
0.3
0.3
0.3
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
10
11
11
8
9
9
8
7
7
9
9
8
8
8
8
9
8
9
9
8

Dew Point (°C)

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

Relative Humidity (%)

43
49
55
61
67
74
82
78
77
75
78
81
83
83
84
84
83
81
79
65
54

Pressure (mb)

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

Ozone (du)

311
311
310
310
310
310
310
310
309
309
308
308
307
307
306
305
304
304
303
303
303

Forecast for Crownhill, Milton Keynes, United Kingdom (52.03,-0.81)

Generated: 18/09/25 16:28:34. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+1.00