Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 17

Waning Crescent 12%

02:20

18:14

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: 06:43, Set: 19:09, Transit: 12:56. Moon - Rise: 02:20, Set: 18:14. Civil Dark: 19:42 - 06:10. Nautical Dark: 20:25 - 05:30. Astro Dark: 21:07 - 04:48

Total Clouds (% Sky Obscured)

100
100
100
97
98
95
92
97
93
97
92
75
85
88
92
85
83
97
96
100
98
53
64
62

Low Clouds (% Sky Obscured)

100
84
88
93
94
86
85
94
87
94
85
73
85
88
86
85
83
80
77
63
75
52
51
48

Medium Clouds (% Sky Obscured)

35
40
30
33
36
41
25
29
17
21
21
4
0
0
5
0
4
9
12
35
39
3
13
14

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
4
4
3
5
6
3
40
61
37
54
6
4
36
62

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
8
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
9
8
0
3
0
3
0
1
0
0
3
1
1
1
0
4
5
5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
93
93
93
92
92
95
93
92
92
92
92
92
82
77
70
66
64
60
58
58
64
71
78

Pressure (mb)

1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018
1019
1019
1019
1019
1019
1019
1018
1019
1019
1019

Ozone (du)

263
264
263
262
260
260
260
259
258
259
259
258
258
259
258
256
255
255
256
257
257
258
257
258

Thursday 18

Waning Crescent 6%

03:41

18:28

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 OK
09 OK
10 OK
11 OK
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 OK
19 Bad

Sun - Rise: 06:45, Set: 19:07, Transit: 12:56. Moon - Rise: 03:41, Set: 18:28. Civil Dark: 19:40 - 06:12. Nautical Dark: 20:22 - 05:32. Astro Dark: 21:04 - 04:50

Total Clouds (% Sky Obscured)

77
98
100
100
100
100
100
100
100
87
65
55
36
39
45
44
52
82
93
55
79
81
37
51

Low Clouds (% Sky Obscured)

65
69
71
66
69
60
52
56
53
63
64
55
30
35
34
33
42
37
41
48
45
45
36
50

Medium Clouds (% Sky Obscured)

3
3
3
3
3
2
3
6
3
3
3
3
4
3
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

77
97
100
100
100
100
100
100
98
79
35
11
36
20
43
39
38
51
83
27
61
67
5
23

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
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)

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

Chance of Frost

Temperature (°C)

18
17
17
16
16
16
15
15
15
15
15
15
16
18
19
21
22
23
23
24
23
22
21
19

Feels Like (°C)

16
16
15
15
15
15
15
14
14
15
14
15
17
17
19
19
21
21
22
21
21
21
20
20

Dew Point (°C)

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

Relative Humidity (%)

86
90
93
95
95
95
96
96
96
96
96
96
93
82
72
64
55
47
42
40
41
47
55
66

Pressure (mb)

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

Ozone (du)

258
258
258
258
257
256
256
256
256
257
257
258
258
258
260
259
259
259
259
260
262
263
263
263

Friday 19

Waning Crescent 2%

04:59

18:39

20 Bad
21 Bad
22 OK
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 OK
18 OK
19 Good

Sun - Rise: 06:46, Set: 19:04, Transit: 12:55. Moon - Rise: 04:59, Set: 18:39. Civil Dark: 19:38 - 06:13. Nautical Dark: 20:20 - 05:34. Astro Dark: 21:01 - 04:52

Total Clouds (% Sky Obscured)

52
78
40
82
57
80
52
62
59
79
73
89
97
97
100
100
95
81
67
56
46
29
15
11

Low Clouds (% Sky Obscured)

38
55
0
0
19
29
26
35
44
56
71
63
85
72
80
90
57
55
54
56
24
14
1
9

Medium Clouds (% Sky Obscured)

6
14
9
8
14
16
4
10
0
1
7
13
15
25
30
100
13
48
17
56
46
29
15
2

High Clouds (% Sky Obscured)

27
40
40
75
11
40
30
25
27
50
65
54
52
80
100
15
76
54
27
5
5
5
5
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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
3
35
21
12
8
10
11
12
9
0
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)

5
5
5
4
4
4
4
4
4
4
4
4
5
7
8
9
10
13
14
15
16
14
11
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
69
69
67
68
67
66
68
70
71
74
76
73
65
57
51
55
49
49
45
49
54
59
67

Pressure (mb)

1015
1015
1015
1014
1014
1013
1013
1012
1012
1011
1011
1010
1010
1010
1010
1010
1009
1009
1009
1009
1009
1009
1009
1010

Ozone (du)

265
264
263
262
262
262
263
263
263
265
266
266
267
266
265
263
262
263
263
263
263
265
265
265

Saturday 20

Waning Crescent 0%

06:14

18:49

20 OK
21 Bad
22 OK
23 OK
00 Good
01 Good
02 Good
03 Good
04 OK
05 OK
06 OK
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: 06:48, Set: 19:02, Transit: 12:55. Moon - Rise: 06:14, Set: 18:49. Civil Dark: 19:35 - 06:15. Nautical Dark: 20:17 - 05:35. Astro Dark: 20:59 - 04:54

Total Clouds (% Sky Obscured)

31
40
27
23
10
13
15
18
21
23
41
52
65
78
75
80
84
89
91
92
87
92
99
99

Low Clouds (% Sky Obscured)

20
31
19
10
0
2
4
6
4
5
20
27
33
36
34
45
55
53
51
47
51
68
86
71

Medium Clouds (% Sky Obscured)

0
0
0
0
0
1
1
1
4
7
11
17
24
29
33
37
34
39
40
45
45
54
59
59

High Clouds (% Sky Obscured)

5
5
5
10
10
10
10
10
5
0
0
0
0
0
0
0
0
2
4
6
7
7
7
5

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
9
7
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
1
3
3
0
0
0
0
0
0
0
1
5
17
30
33
35
28
22
18
28
36
41
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
10
11
9
8
8
8
8
8
7
5
5
6
6
9
11
13
13
14
15
15
14
12
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

11
13
11
9
8
8
7
7
7
6
6
6
6
7
8
7
8
8
7
6
5
5
5
6

Relative Humidity (%)

77
89
82
79
80
83
80
80
85
84
87
81
78
77
71
61
61
60
57
54
52
56
63
66

Pressure (mb)

1010
1011
1011
1012
1012
1012
1012
1012
1012
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1016

Ozone (du)

267
270
274
275
274
274
274
275
276
278
279
281
281
282
283
285
286
288
289
292
294
297
300
305

Sunday 21

New Moon 1%

07:27

18:59

20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 OK
02 OK
03 OK
04 OK
05 Good
06 OK
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: 06:50, Set: 19:00, Transit: 12:55. Moon - Rise: 07:27, Set: 18:59. Civil Dark: 19:33 - 06:16. Nautical Dark: 20:15 - 05:37. Astro Dark: 20:56 - 04:56

Total Clouds (% Sky Obscured)

99
99
79
66
49
35
20
3
4
3
5
79
74
65
69
74
82
86
89
92
86
81
76
66

Low Clouds (% Sky Obscured)

58
42
25
16
5
5
0
0
0
0
0
61
58
55
55
55
55
57
58
61
57
55
54
56

Medium Clouds (% Sky Obscured)

59
61
48
38
30
19
10
2
1
3
1
17
12
12
15
15
16
27
37
50
54
58
62
66

High Clouds (% Sky Obscured)

2
0
0
0
0
0
0
0
1
3
5
57
60
38
18
12
7
9
10
12
7
6
10
15

ISS Passover

Visibility (miles)

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

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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

38
40
35
27
14
15
17
20
21
7
18
30
32
34
41
44
44
57
67
74
77
80
82
73

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.4
0.5
0.6
0.6
0.5

Wind Speed/Direction (mph)

9
8
7
6
6
6
6
6
6
6
7
7
10
12
14
15
15
15
14
14
13
13
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
8
8
9
9
9
8
8
8
8
7
7
9
9
9
10
10
11
15
14
13
14
14
14

Dew Point (°C)

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

Relative Humidity (%)

71
75
77
84
77
80
78
76
81
85
88
85
81
75
69
66
61
58
58
61
62
68
76
84

Pressure (mb)

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

Ozone (du)

308
307
305
302
303
305
306
306
307
310
312
313
313
312
312
312
312
312
312
312
313
312
312
311

Monday 22

Waxing Crescent 3%

08:40

19:10

20 Bad
21 Bad
22 Bad
23 Bad
00 OK
01 OK
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: 06:51, Set: 18:58, Transit: 12:54. Moon - Rise: 08:40, Set: 19:10. Civil Dark: 19:31 - 06:18. Nautical Dark: 20:12 - 05:39. Astro Dark: 20:53 - 04:58

Total Clouds (% Sky Obscured)

57
47
40
30
26
41
52
63
61
59
58
67
75
85
89
94
100
100
100
100
100
100
100
98

Low Clouds (% Sky Obscured)

57
47
40
30
26
34
38
42
45
47
50
41
32
24
33
43
52
45
37
29
39
49
59
66

Medium Clouds (% Sky Obscured)

57
47
40
30
26
41
35
19
22
18
6
17
29
42
61
80
100
85
73
63
56
46
41
41

High Clouds (% Sky Obscured)

14
12
13
9
5
2
4
6
4
4
10
31
40
50
50
45
45
60
82
100
82
58
56
56

ISS Passover

Visibility (miles)

6
8
9
9
9
9
9
9
9
9
9
9
7
4
1
4
7
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
None
None
None
None
None
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
Very Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

63
53
43
30
3
8
7
1
2
2
1
42
56
60
65
66
67
60
49
32
50
61
68
61

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
83
81
83
84
84
85
85
87
85
84
85
87
88
90
81
74
67
69
70
73
71
71
70

Pressure (mb)

1021
1021
1022
1022
1022
1022
1021
1021
1021
1020
1020
1020
1020
1020
1020
1019
1019
1018
1018
1018
1017
1017
1018
1018

Ozone (du)

311
312
312
312
312
311
312
312
312
312
313
313
311
309
307
308
309
309
310
311
311
312
313
314

Tuesday 23

Waxing Crescent 7%

09:53

19:22

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: 06:53, Set: 18:55, Transit: 12:54. Moon - Rise: 09:53, Set: 19:22. Civil Dark: 19:28 - 06:20. Nautical Dark: 20:10 - 05:41. Astro Dark: 20:51 - 05:00

Total Clouds (% Sky Obscured)

95
92
86
79
69
74
86
91
96
98
97
96
95
94
92
91
87

Low Clouds (% Sky Obscured)

71
69
59
55
46
57
67
72
75
80
89
88
88
92
88
85
73

Medium Clouds (% Sky Obscured)

42
40
59
74
69
74
70
70
70
70
65
57
49
41
34
28
22

High Clouds (% Sky Obscured)

45
35
35
40
40
25
10
5
5
5
5
5
8
7
15
18
16

ISS Passover

Visibility (miles)

9
9
9
9
9
9
8
7
6
5
4
3
5
7
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

46
29
25
24
3
29
35
32
73
93
95
95
88
80
70
60
44

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.4
0.7
0.8
0.6
0.4
0.2
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

12
12
12
11
11
11
11
10
10
10
10
10
10
11
12
12
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
73
77
77
77
76
78
80
81
85
90
93
90
88
89
89
90

Pressure (mb)

1018
1018
1018
1018
1017
1017
1017
1017
1016
1016
1015
1015
1015
1015
1014
1014
1014

Ozone (du)

315
316
317
318
318
319
320
322
323
323
323
323
323
323
323
323
322

Forecast for Bray Court, Windsor and Maidenhead, United Kingdom (51.50,-0.70)

Generated: 17/09/25 20:15:09. Forecast: 17/09/25 to 23/09/25. Timezone: UTC+1.00