Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 18

Waning Crescent 3%

05:41

14:52

00 Good
01 Good
02 Good
03 Good
04 Good
05 Bad
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
23 Bad

Sun - Rise: 07:27, Set: 16:09, Transit: 11:48. Moon - Rise: 05:41, Set: 14:52. Civil Dark: 16:46 - 06:49. Nautical Dark: 17:27 - 06:08. Astro Dark: 18:06 - 05:29

Total Clouds (% Sky Obscured)

1
7
8
5
0
78
74
16
11
57
79
88
100
99
95
100
95
81
80
47
68
87
94
98

Low Clouds (% Sky Obscured)

0
0
0
0
0
68
66
0
11
0
31
44
8
38
43
61
41
35
22
7
0
13
30
40

Medium Clouds (% Sky Obscured)

0
0
0
0
0
32
33
8
0
28
31
31
40
34
30
34
26
23
27
17
68
87
93
36

High Clouds (% Sky Obscured)

1
4
8
5
0
0
0
0
3
1
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 (%)

0
0
0
0
0
3
16
3
0
0
2
5
9
14
14
24
12
2
1
12
2
13
3
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)

3
3
3
3
5
5
5
5
5
5
8
9
8
9
9
8
8
8
10
9
9
10
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-1
-3
-2
-2
-1
-1
-1
-1
-1
-1
-1
1
2
2
2
3
4
3
2
3
1
1
1
1

Dew Point (°C)

-2
-2
-2
-2
-2
-2
-1
-1
-1
-1
1
3
3
3
2
3
4
5
4
5
4
3
4
4

Relative Humidity (%)

84
84
86
86
86
88
89
91
88
81
80
86
85
76
74
78
85
90
88
93
86
85
90
88

Pressure (mb)

1025
1025
1025
1024
1023
1022
1022
1021
1021
1021
1020
1019
1018
1016
1015
1014
1013
1013
1012
1012
1011
1010
1010
1009

Ozone (du)

280
279
271
271
277
281
281
277
274
273
274
271
276
277
280
278
275
272
273
273
278
280
282
286

Wednesday 19

Waning Crescent 1%

06:54

15:09

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 OK
16 OK
17 Good
18 Good
19 Good
20 Good
21 Good
22 Good
23 OK

Sun - Rise: 07:28, Set: 16:07, Transit: 11:48. Moon - Rise: 06:54, Set: 15:09. Civil Dark: 16:45 - 06:51. Nautical Dark: 17:26 - 06:10. Astro Dark: 18:06 - 05:30

Total Clouds (% Sky Obscured)

78
39
100
94
86
99
94
85
92
91
51
41
66
49
47
35
10
5
5
5
5
5
5
15

Low Clouds (% Sky Obscured)

35
39
93
86
54
97
88
78
68
65
46
38
64
43
44
31
6
0
0
0
0
0
0
14

Medium Clouds (% Sky Obscured)

78
39
35
34
29
33
66
84
90
88
51
41
65
49
47
35
10
5
5
5
5
5
5
2

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
35
40
1
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
8
0
0
0
0
0
0
7
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

7
17
47
58
49
16
29
44
85
95
37
3
0
1
3
6
9
1
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0.4
0.2
0
0
0
0.4
0.9
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

6
5
5
5
5
4
3
3
3
3
3
4
4
4
4
4
3
3
2
1
1
0
0
0

Feels Like (°C)

1
1
1
1
0
-1
-2
-3
-4
-4
-4
-3
-3
-3
-3
-3
-3
-4
-4
-5
-5
-5
-6
-6

Dew Point (°C)

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

Relative Humidity (%)

86
91
91
88
94
94
96
94
94
96
86
80
76
79
80
86
89
86
80
80
80
81
81
80

Pressure (mb)

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

Ozone (du)

294
301
300
296
297
301
304
311
328
335
336
332
324
319
322
324
326
326
327
325
324
323
328
328

Thursday 20

New Moon 0%

08:07

15:33

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

Sun - Rise: 07:30, Set: 16:06, Transit: 11:48. Moon - Rise: 08:07, Set: 15:33. Civil Dark: 16:44 - 06:52. Nautical Dark: 17:25 - 06:11. Astro Dark: 18:05 - 05:31

Total Clouds (% Sky Obscured)

27
42
24
5
9
1
12
2
2
0
3
6
30
20
9
4
3
2
7
12
17
12
6
1

Low Clouds (% Sky Obscured)

27
42
24
0
0
0
0
0
0
0
0
0
5
5
5
1
1
1
6
12
16
12
6
1

Medium Clouds (% Sky Obscured)

0
0
3
5
9
1
12
2
2
0
3
6
30
5
0
4
3
2
3
0
0
0
0
0

High Clouds (% Sky Obscured)

0
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 (%)

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-5
-5
-5
-4
-6
-6
-4
-6
-4
-4
-3
-2
-2
-2
-2
-2
-2
-3
-3
-4
-4
-4
-4
-3

Dew Point (°C)

-4
-4
-4
-4
-4
-5
-5
-5
-5
-5
-5
-5
-4
-2
-2
-2
-1
-2
-3
-3
-3
-2
-2
-2

Relative Humidity (%)

78
78
77
78
77
75
75
75
77
74
66
60
62
72
66
69
76
80
76
77
80
81
83
84

Pressure (mb)

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

Ozone (du)

329
322
319
320
320
319
321
323
326
330
337
335
331
327
322
314
312
312
314
316
314
314
312
312

Friday 21

Waxing Crescent 2%

09:16

16:05

00 Good
01 Good
02 Good
03 Good
04 OK
05 OK
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
23 Bad

Sun - Rise: 07:32, Set: 16:05, Transit: 11:48. Moon - Rise: 09:16, Set: 16:05. Civil Dark: 16:43 - 06:54. Nautical Dark: 17:24 - 06:13. Astro Dark: 18:04 - 05:33

Total Clouds (% Sky Obscured)

1
1
1
15
28
43
56
68
80
86
93
100
90
81
70
81
90
100
100
100
97
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
0
0
0
1
3
4
22
40
55
60
66
64
69
86
95

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
19
29
37
34
35
32
33
32
70
81
87
91
85
89
50
50
87
100

High Clouds (% Sky Obscured)

0
0
0
15
28
43
32
21
9
41
71
100
80
64
50
67
80
97
100
99
97
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
Very Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
5
8
10
13
42
67
88

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
0.3
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

0
-0
-1
-1
-1
-1
-1
-1
-1
-0
1
2
3
4
4
4
3
3
3
3
3
3
4
5

Feels Like (°C)

-3
-3
-3
-3
-3
-3
-3
-3
-3
-2
-1
-2
-0
0
1
1
-1
-1
-1
-1
-1
-1
-0
1

Dew Point (°C)

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

Relative Humidity (%)

83
83
84
83
83
81
83
81
80
74
69
64
61
60
64
69
72
76
77
76
76
74
73
72

Pressure (mb)

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

Ozone (du)

311
311
305
299
296
295
294
295
294
292
291
288
285
282
280
280
276
263
264
267
271
277
279
285

Saturday 22

Waxing Crescent 5%

10:18

16:50

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

Sun - Rise: 07:33, Set: 16:04, Transit: 11:49. Moon - Rise: 10:18, Set: 16:50. Civil Dark: 16:42 - 06:55. Nautical Dark: 17:23 - 06:14. Astro Dark: 18:03 - 05:34

Total Clouds (% Sky Obscured)

98
96
94
91
87
84
66
49
32
36
40
44
50
58
67
46
25
19
21
24
12
26
37
54

Low Clouds (% Sky Obscured)

93
86
78
53
29
5
14
19
28
32
37
41
50
58
67
44
22
0
0
0
0
5
10
15

Medium Clouds (% Sky Obscured)

95
89
84
86
87
84
66
49
30
25
20
25
18
16
11
26
25
19
21
24
12
26
37
38

High Clouds (% Sky Obscured)

70
40
15
20
20
20
20
20
25
25
1
1
1
1
2
2
2
1
21
24
12
26
37
44

ISS Passover

Visibility (miles)

9
4
3
3
4
3
5
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
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
95
88
61
42
40
19
3
3
4
9
10
10
10
10
4
8
6
1
3
1
0

Precipitation Amount (mm)

0.9
1.4
1.3
0.9
0.5
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
10
12
13
12
11
11
10
6
4
4
7
7
7
6
6
5
4
4
3
3
2
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
3
3
3
2
2
3
3
3
4
5
6
6
6
6
6
6
6
5
3
3
3
2
2

Dew Point (°C)

2
5
6
7
7
7
7
6
6
6
6
7
7
7
7
7
6
5
5
5
4
4
3
3

Relative Humidity (%)

75
85
91
93
93
94
94
94
94
96
93
90
88
87
88
90
91
90
91
93
93
93
93
91

Pressure (mb)

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

Ozone (du)

290
299
296
291
291
293
295
297
295
295
295
294
293
292
291
290
288
286
284
282
280
279
277
276

Sunday 23

Waxing Crescent 10%

11:08

17:48

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
23 OK

Sun - Rise: 07:35, Set: 16:03, Transit: 11:49. Moon - Rise: 11:08, Set: 17:48. Civil Dark: 16:41 - 06:57. Nautical Dark: 17:23 - 06:15. Astro Dark: 18:02 - 05:35

Total Clouds (% Sky Obscured)

67
80
92
91
91
84
82
76
73
69
66
66
83
90
100
99
97
96
94
92
90
71
52
33

Low Clouds (% Sky Obscured)

26
38
47
61
72
76
65
59
53
52
54
59
61
58
52
51
50
49
60
71
81
63
44
26

Medium Clouds (% Sky Obscured)

34
29
29
33
37
33
16
10
4
4
4
3
19
59
68
75
77
73
49
26
7
23
40
33

High Clouds (% Sky Obscured)

27
12
11
22
40
58
73
76
73
69
66
66
67
33
0
9
21
30
30
37
48
49
49
33

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
2
14
22
32
44
50
52
44
37
26
35
37
33
41
41
36
29
20
8
9
9
6

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

1
2
2
2
3
3
4
3
3
4
4
3
3
7
6
6
6
7
7
4
4
5
4
3

Dew Point (°C)

3
2
3
2
3
3
3
4
4
5
5
5
5
5
5
6
6
6
7
6
6
6
5
4

Relative Humidity (%)

91
91
93
93
93
93
91
93
91
90
85
81
78
79
82
87
88
90
93
93
93
93
93
93

Pressure (mb)

1010
1009
1009
1009
1009
1008
1008
1008
1008
1007
1007
1006
1006
1006
1005
1005
1005
1004
1004
1004
1003
1003
1003
1002

Ozone (du)

275
273
272
270
272
273
275
276
276
277
277
277
277
276
275
275
276
276
277
279
280
281
280
280

Monday 24

Waxing Crescent 17%

11:45

18:57

Sun - Rise: 07:36, Set: 16:02, Transit: 11:49. Moon - Rise: 11:45, Set: 18:57. Civil Dark: 16:40 - 06:58. Nautical Dark: 17:22 - 06:17. Astro Dark: 18:02 - 05:37

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 18/11/25 00:23:26. Forecast: 18/11/25 to 24/11/25. Timezone: UTC+0.00