Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 11

Waning Crescent 40%

04:12

12:20

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 OK
17 OK
18 OK
19 OK
20 Bad
21 Bad
22 Bad
23 OK
00 Bad
01 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)

55
65
73
79
100
100
100
100
100
100
58
78
63
89
31
14
30
33
44
55
57
42
50
62

Low Clouds (% Sky Obscured)

0
50
73
75
63
100
100
78
58
49
34
28
24
16
0
14
30
33
44
55
57
42
50
62

Medium Clouds (% Sky Obscured)

55
65
73
41
58
49
47
44
45
44
16
26
17
24
8
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

55
65
73
79
100
100
100
100
100
100
58
65
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
6
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 (%)

20
17
1
0
4
15
31
46
26
20
26
19
21
5
1
1
0
0
0
1
1
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
8
9
7
12
11
13
14
14
12
14
15
19
20
19
17
18
18
18
18
18
18
18
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
70
70
71
76
80
81
85
91
87
87
68
50
46
49
55
59
61
62
68
74
74
70
70

Pressure (mb)

1007
1006
1005
1004
1003
1003
1003
1004
1005
1006
1006
1007
1007
1007
1007
1007
1008
1008
1008
1009
1009
1009
1009
1009

Ozone (du)

344
342
341
341
341
343
346
349
349
353
359
362
372
391
397
402
403
402
402
412
421
418
413
410

Sunday 12

Waning Crescent 30%

04:31

13:38

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

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)

63
65
43
62
66
84
67
56
66
62
69
58
78
98
86
81
40
39
58
17
28
32
26
4

Low Clouds (% Sky Obscured)

63
65
43
62
66
84
67
56
52
40
50
37
49
66
61
73
14
28
32
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
20
51
32
17
18
95
85
17
40
16
27
12
17
30
26
4

High Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
4
5
6
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
Very Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
1
0
1
1
1
2
2
11
29
32
35
55
65
63
50
29
6
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.4
0.2
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

17
16
15
14
13
12
14
15
16
15
15
15
15
14
13
12
9
7
5
4
3
3
3
2

Chance of Frost

Temperature (°C)

8
8
7
7
7
8
9
10
11
12
13
14
14
14
13
12
11
10
9
8
7
6
5
5

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
75
78
78
81
82
80
73
65
58
56
51
52
61
62
65
70
74
81
82
82
82
83
83

Pressure (mb)

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

Ozone (du)

410
412
412
413
414
417
421
426
427
427
423
421
429
432
433
439
442
448
453
459
460
458
458
461

Monday 13

Waning Crescent 20%

04:46

14:58

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 OK
20 Good
21 Good
22 Good
23 Good
00 OK
01 OK

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)

78
86
87
86
94
92
84
85
86
96
93
84
72
72
71
69
9
4
1
1
3
7
11
34

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
83
75
50
45
50
47
47
1
0
1
1
0
0
0
13

Medium Clouds (% Sky Obscured)

78
86
87
86
94
92
84
85
86
91
93
84
72
72
71
69
9
4
1
0
1
4
6
23

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
6
3
9
8
5
5
6
8
5
5
6
8
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
33
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
Light Rain
Light Rain
Light Rain
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

1
0
1
4
19
67
72
60
37
47
59
69
69
68
68
61
55
30
2
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0.4
0.5
0.4
0
0
0.2
0.4
0.4
0.4
0.3
0.2
0.2
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

2
3
3
3
2
2
3
2
3
5
6
6
7
9
10
10
9
7
6
6
5
5
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
2
1
0
-0
0
1
4
6
8
8
9
8
8
8
7
8
7
7
6
6
5
4
3

Dew Point (°C)

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

Relative Humidity (%)

85
89
91
91
91
91
93
94
95
84
77
79
67
68
67
71
76
81
90
93
91
93
91
89

Pressure (mb)

1014
1013
1013
1013
1013
1013
1013
1013
1013
1013
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1014
1014
1014
1015

Ozone (du)

472
475
476
478
476
467
463
464
467
470
470
469
465
457
450
442
437
433
431
427
424
419
412
408

Tuesday 14

Waning Crescent 12%

04:59

16:18

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
00 Bad
01 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)

53
74
82
82
93
100
100
100
100
100
100
100
99
99
99
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

27
40
28
14
2
28
52
76
84
92
100
99
99
98
94
89
85
89
92
98
97
96
94
92

Medium Clouds (% Sky Obscured)

40
55
64
70
71
62
43
42
33
36
35
39
43
52
91
88
91
83
74
80
86
89
62
50

High Clouds (% Sky Obscured)

0
0
30
57
86
93
99
100
71
60
27
34
43
48
57
95
100
100
100
100
100
100
100
89

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
8
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
Very Light Rain
Light Rain
Very Light Rain
Light Rain
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
10
21
33
48
62
74
69
65
50
42
44
42
37
35
30
45
65
63
76

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
0.4
0.3
0.4
0
0
0
0
0
0
0
0
0.3
0.3
0.4

Wind Speed/Direction (mph)

4
4
3
2
2
2
4
5
6
7
7
9
9
10
10
9
9
8
8
8
7
7
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
3
4
4
5
5
5
6
7
7
7
8
8
9
9
9
9
8
9
10
9
10
10
10

Dew Point (°C)

2
2
2
2
3
3
5
6
7
7
7
8
8
8
9
9
10
10
10
11
11
11
11
11

Relative Humidity (%)

88
88
89
86
86
86
85
85
87
85
84
87
83
76
83
86
90
93
95
98
100
96
100
98

Pressure (mb)

1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

403
399
399
397
394
386
380
377
373
368
365
361
355
352
349
346
345
344
343
342
341
341
341
338

Wednesday 15

Waning Crescent 6%

05:11

17:41

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
00 Bad
01 Bad

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)

100
96
99
100
100
98
96
93
92
90
89
92
96
100
94
88
80
76
73
64
64
62
64
65

Low Clouds (% Sky Obscured)

98
96
95
91
86
86
86
87
77
67
57
71
86
100
91
82
72
69
66
62
62
61
61
64

Medium Clouds (% Sky Obscured)

39
29
22
11
3
4
5
9
25
44
57
59
54
40
30
28
27
39
56
64
64
62
64
55

High Clouds (% Sky Obscured)

78
54
60
71
93
73
47
25
25
2
1
2
5
15
14
10
5
31
59
64
58
46
35
16

ISS Passover

Visibility (miles)

5
8
8
9
9
9
9
9
9
9
9
9
9
9
8
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

87
65
44
18
1
1
3
3
4
10
9
25
29
30
38
45
54
45
32
12
9
5
1
2

Precipitation Amount (mm)

0.7
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
9
9
9
10
9
10
9
10
10
10
11
11
11
10
10
10
10
10
10
10
9
9
9

Dew Point (°C)

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

Relative Humidity (%)

98
96
96
96
96
93
92
87
86
78
74
83
85
84
86
86
84
83
86
90
93
93
93
95

Pressure (mb)

1016
1015
1016
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1016
1016
1017
1017
1017
1017

Ozone (du)

338
343
347
348
349
350
350
351
351
353
353
354
354
354
354
355
356
357
359
362
364
371
378
385

Thursday 16

Waning Crescent 2%

05:24

19:07

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
00 Bad
01 Bad

Sun - Rise: 06:03, Set: 20:01, Transit: 13:02. Moon - Rise: 05:24, Set: 19:07. Civil Dark: 20:37 - 05:27. Nautical Dark: 21:21 - 04:43. Astro Dark: 22:11 - 03:53

Total Clouds (% Sky Obscured)

66
66
58
52
45
52
59
66
70
72
74
85
91
98
99
99
100
97
97
99
88
77
66
73

Low Clouds (% Sky Obscured)

64
66
58
51
44
51
59
66
63
62
65
66
66
64
53
41
30
20
10
0
0
0
0
18

Medium Clouds (% Sky Obscured)

35
14
9
5
0
0
0
0
0
0
0
1
13
21
46
68
83
60
37
22
47
69
66
73

High Clouds (% Sky Obscured)

4
0
0
0
0
0
0
0
19
37
56
66
76
86
91
95
97
87
75
63
58
54
50
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

3
0
0
1
0
0
1
0
8
11
10
11
13
14
16
19
21
18
16
9
7
5
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
9
9
8
9
11
12
12
12
12
11
11
10
9
8
8
6
5
4
4
3
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
95
96
95
95
95
87
81
75
69
61
55
57
59
62
67
73
79
83
87
91
95
95
96

Pressure (mb)

1017
1017
1017
1018
1018
1019
1019
1020
1020
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1023
1023
1023
1023
1023

Ozone (du)

388
391
393
393
394
394
391
389
386
385
385
384
377
370
364
363
363
362
363
363
364
363
363
363

Friday 17

New Moon 0%

05:38

20:37

Sun - Rise: 06:01, Set: 20:03, Transit: 13:02. Moon - Rise: 05:38, Set: 20:37. Civil Dark: 20:38 - 05:25. Nautical Dark: 21:23 - 04:40. Astro Dark: 22:14 - 03:50

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: 11/04/26 02:22:02. Forecast: 11/04/26 to 17/04/26. Timezone: UTC+1.00