Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 9

Waning Gibbous 59%

03:11

09:55

00 Good
01 Good
02 Good
03 Good
04 Good
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 Good
20 Good
21 Good
22 Bad
23 Bad

Sun - Rise: 06:18, Set: 19:49, Transit: 13:04. Moon - Rise: 03:11, Set: 09:55. Civil Dark: 20:24 - 05:44. Nautical Dark: 21:07 - 05:01. Astro Dark: 21:53 - 04:14

Total Clouds (% Sky Obscured)

0
2
5
3
0
10
32
100
100
100
96
100
100
100
100
100
100
94
77
3
0
0
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
22
0
0
0
0
0
0
0
0
70
100
68
69
3
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
2
0
3
5
15
55
60
56
82
100
100
100
100
100
94
4
0
0
0
0
0

High Clouds (% Sky Obscured)

0
2
3
3
0
10
32
100
100
100
96
85
100
100
63
51
50
55
60
3
0
0
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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
6
33
15
3
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
2
2
5
5
5
5
5
5
7
8
10
11
13
13
16
16
16
15
15
13
13
12
12

Chance of Frost

Temperature (°C)

14
13
12
11
11
10
10
9
11
13
15
16
18
19
18
17
14
13
12
11
10
9
8
7

Feels Like (°C)

15
14
13
11
10
9
7
8
9
11
12
13
15
15
14
12
10
8
7
6
6
4
3
1

Dew Point (°C)

12
12
11
9
8
8
8
7
9
10
10
11
11
10
11
12
10
8
7
7
5
4
3
2

Relative Humidity (%)

90
90
90
84
84
85
87
87
86
79
73
68
63
57
63
73
76
71
72
75
71
70
71
70

Pressure (mb)

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

Ozone (du)

361
360
360
356
353
352
350
351
351
352
352
352
355
358
361
362
363
367
374
376
374
373
373
371

Friday 10

Third Quarter 50%

03:46

11:04

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 Bad

Sun - Rise: 06:16, Set: 19:51, Transit: 13:03. Moon - Rise: 03:46, Set: 11:04. Civil Dark: 20:26 - 05:41. Nautical Dark: 21:09 - 04:58. Astro Dark: 21:56 - 04:11

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
95
86
86
100
100
100
95
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
12
24
0
0
0
0
0
32
11
0
0

Medium Clouds (% Sky Obscured)

22
81
100
100
92
99
100
95
86
79
91
91
100
95
96
100
100
100
100
96
100
90
95
31

High Clouds (% Sky Obscured)

100
100
100
100
100
100
87
70
70
78
99
73
93
53
100
100
100
100
100
100
100
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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
8
10
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)

11
11
10
10
9
7
5
3
1
2
2
4
6
8
9
10
10
10
10
10
11
10
10
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

1
0
0
0
1
1
2
2
3
4
5
6
7
7
8
7
7
6
6
5
4
4
4
3

Dew Point (°C)

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

Relative Humidity (%)

70
68
67
66
68
73
75
79
73
70
66
60
54
52
52
52
50
56
62
64
64
69
73
73

Pressure (mb)

1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1022
1021
1020
1020
1019
1018
1017
1016
1015
1014
1014
1013
1011

Ozone (du)

366
364
363
359
355
355
354
357
360
358
357
355
352
352
349
348
346
346
347
347
348
350
352
350

Saturday 11

Waning Crescent 40%

04:12

12:20

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 Bad

Sun - Rise: 06:14, Set: 19:53, Transit: 13:03. Moon - Rise: 04:12, Set: 12:20. Civil Dark: 20:28 - 05:39. Nautical Dark: 21:11 - 04:56. Astro Dark: 21:58 - 04:08

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
95
85
56
81
100
91
84
86
88
86
81
87

Low Clouds (% Sky Obscured)

0
0
0
24
77
79
80
82
100
100
100
88
44
52
43
36
37
4
1
5
9
12
26
44

Medium Clouds (% Sky Obscured)

36
43
96
100
100
57
84
29
27
25
24
24
16
5
0
16
14
30
12
10
5
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
53
60
35
46
99
86
75
79
88
86
81
87

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
7
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
4
34
27
17
29
24
37
18
27
10
16
1
1
1
0
1
0
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
74
68
71
75
77
82
88
90
83
81
78
82
84
61
56
50
51
57
61
64
75
76
78

Pressure (mb)

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

Ozone (du)

349
346
344
344
344
343
343
345
347
349
350
352
356
362
368
375
382
387
393
399
406
412
416
422

Sunday 12

Waning Crescent 30%

04:31

13:38

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 OK
22 OK
23 OK

Sun - Rise: 06:12, Set: 19:54, Transit: 13:03. Moon - Rise: 04:31, Set: 13:38. Civil Dark: 20:29 - 05:37. Nautical Dark: 21:13 - 04:53. Astro Dark: 22:01 - 04:05

Total Clouds (% Sky Obscured)

93
87
78
70
64
54
55
67
78
85
73
63
61
73
90
95
93
77
70
56
39
25
23
21

Low Clouds (% Sky Obscured)

66
71
72
70
64
54
55
54
51
44
41
38
35
43
66
62
64
43
31
29
28
23
22
19

Medium Clouds (% Sky Obscured)

2
0
0
0
0
0
0
17
26
35
25
21
18
27
40
45
43
41
30
20
9
0
0
0

High Clouds (% Sky Obscured)

93
63
32
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
8
8
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
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

1
2
3
3
2
2
1
2
17
21
22
29
34
37
48
50
44
41
32
23
16
0
2
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

14
13
12
13
13
13
13
13
15
17
18
18
17
17
17
17
16
14
13
12
10
9
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
79
81
82
79
78
81
81
78
76
71
57
52
50
50
67
63
71
72
76
81
87
91
94

Pressure (mb)

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

Ozone (du)

424
421
417
418
417
423
426
434
443
453
462
469
469
468
466
462
459
458
460
462
463
463
463
462

Monday 13

Waning Crescent 20%

04:46

14:58

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
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 06:09, Set: 19:56, Transit: 13:03. Moon - Rise: 04:46, Set: 14:58. Civil Dark: 20:31 - 05:34. Nautical Dark: 21:15 - 04:51. Astro Dark: 22:03 - 04:02

Total Clouds (% Sky Obscured)

21
36
46
60
73
85
91
89
85
82
70
58
49
56
65
74
51
28
20
28
36
35
25
11

Low Clouds (% Sky Obscured)

20
30
39
50
50
48
45
55
69
80
63
46
29
31
33
35
23
12
0
11
22
33
22
11

Medium Clouds (% Sky Obscured)

2
4
3
5
22
50
75
58
32
9
15
22
47
49
52
49
51
28
20
28
36
35
25
11

High Clouds (% Sky Obscured)

0
12
25
36
25
26
20
16
2
0
0
0
0
0
0
0
0
0
0
1
2
3
2
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
7
7
7
7
7
7
6
6
6
7
8

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
18
29
37
48
47
45
46
45
47
43
36
31
37
40

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)

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

Chance of Frost

Temperature (°C)

6
5
5
4
4
4
4
4
6
8
9
10
11
12
12
13
13
12
11
10
9
8
7
7

Feels Like (°C)

4
3
3
3
3
2
2
2
4
7
8
9
10
8
9
9
9
10
10
9
5
5
5
4

Dew Point (°C)

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

Relative Humidity (%)

94
94
94
94
93
93
93
91
83
77
66
58
55
52
55
57
60
67
73
81
85
90
91
93

Pressure (mb)

1013
1013
1013
1014
1014
1014
1014
1015
1015
1015
1016
1016
1016
1016
1015
1015
1015
1016
1016
1016
1017
1017
1018
1018

Ozone (du)

462
464
465
466
467
466
463
461
460
460
459
460
459
457
456
454
453
445
437
430
423
416
409
407

Tuesday 14

Waning Crescent 12%

04:59

16:18

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 OK
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 06:07, Set: 19:58, Transit: 13:02. Moon - Rise: 04:59, Set: 16:18. Civil Dark: 20:33 - 05:32. Nautical Dark: 21:17 - 04:48. Astro Dark: 22:06 - 03:59

Total Clouds (% Sky Obscured)

5
19
32
49
55
59
67
67
66
65
61
57
56
64
68
72
62
51
39
45
53
66
73
81

Low Clouds (% Sky Obscured)

0
14
32
46
53
59
67
48
27
7
23
39
56
45
30
13
16
18
21
14
7
0
0
0

Medium Clouds (% Sky Obscured)

5
17
9
0
0
0
0
0
0
0
0
0
0
2
26
42
35
21
4
7
5
6
10
8

High Clouds (% Sky Obscured)

0
0
0
0
1
1
2
26
51
65
52
30
6
6
5
5
7
9
15
24
31
34
36
38

ISS Passover

Visibility (miles)

8
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 (%)

41
34
28
18
19
18
13
12
7
0
9
12
13
10
8
2
2
1
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)

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

Chance of Frost

Temperature (°C)

6
6
5
5
4
4
3
3
6
8
11
12
13
14
14
14
14
14
14
13
12
10
8
8

Feels Like (°C)

3
3
3
3
2
2
2
1
4
6
8
8
9
10
13
13
12
13
14
13
10
10
9
8

Dew Point (°C)

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

Relative Humidity (%)

91
93
93
94
96
96
94
93
86
81
74
67
61
56
54
51
50
55
61
66
66
63
62
69

Pressure (mb)

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

Ozone (du)

406
404
401
397
393
390
386
383
379
374
370
368
366
364
362
361
359
357
355
352
351
350
349
347

Wednesday 15

Waning Crescent 6%

05:11

17:41

Sun - Rise: 06:05, Set: 19:59, Transit: 13:02. Moon - Rise: 05:11, Set: 17:41. Civil Dark: 20:35 - 05:30. Nautical Dark: 21:19 - 04:46. Astro Dark: 22:09 - 03:56

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: 09/04/26 00:28:33. Forecast: 09/04/26 to 15/04/26. Timezone: UTC+1.00