Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 30

Waxing Gibbous 99%

19:33

04:58

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

Sun - Rise: 05:33, Set: 20:24, Transit: 12:59. Moon - Rise: 19:33, Set: 04:58. Civil Dark: 21:02 - 04:55. Nautical Dark: 21:52 - 04:05. Astro Dark: 22:53 - 03:03

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
25
0
35

Low 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

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
11
0
14

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)

10
11
12
15
15
15
16
15
14
14
12
11
9
8
8
7
7
8
7
6
6
6
6
5

Chance of Frost

Temperature (°C)

11
13
15
17
19
20
20
21
21
20
18
17
15
14
13
12
11
10
10
9
9
9
9
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

66
58
50
44
40
39
38
39
44
47
50
54
59
59
63
70
70
65
67
69
69
73
77
77

Pressure (mb)

1023
1022
1022
1022
1022
1021
1021
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020
1021

Ozone (du)

382
381
382
382
382
382
382
382
381
380
379
380
378
375
372
370
370
370
369
370
371
373
375
375

Friday 1

Full Moon 100%

20:47

05:15

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:31, Set: 20:26, Transit: 12:59. Moon - Rise: 20:47, Set: 05:15. Civil Dark: 21:04 - 04:52. Nautical Dark: 21:54 - 04:02. Astro Dark: 22:56 - 02:59

Total Clouds (% Sky Obscured)

63
64
62
49
50
100
96
86
83
87
97
96
57
49
99
100
100
100
100
100
100
97
83
95

Low Clouds (% Sky Obscured)

19
17
35
14
0
48
84
56
62
68
70
55
54
39
40
3
0
37
34
5
18
30
51
77

Medium Clouds (% Sky Obscured)

18
19
31
49
33
50
25
18
19
28
51
3
5
22
6
13
22
43
47
45
76
91
79
85

High Clouds (% Sky Obscured)

0
9
36
49
48
59
45
35
26
7
60
57
17
15
75
99
100
100
100
100
100
88
30
37

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

Precipitation Probability (%)

0
1
5
2
3
3
14
39
38
48
54
41
20
19
17
3
1
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

12
14
16
18
20
21
22
20
20
20
19
18
17
15
14
13
12
11
10
10
9
9
9
10

Feels Like (°C)

11
13
15
16
18
19
21
19
20
19
19
17
17
15
14
12
11
9
8
7
7
7
7
9

Dew Point (°C)

6
7
8
9
11
12
12
11
11
12
13
13
15
14
13
12
11
10
9
8
9
8
8
8

Relative Humidity (%)

67
61
58
55
55
53
53
53
57
61
68
76
87
93
95
96
96
95
91
91
95
93
93
90

Pressure (mb)

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

Ozone (du)

376
376
376
373
372
372
372
373
373
374
370
365
362
365
368
369
366
365
365
365
364
365
367
371

Saturday 2

Waning Gibbous 98%

22:01

05:38

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:29, Set: 20:28, Transit: 12:59. Moon - Rise: 22:01, Set: 05:38. Civil Dark: 21:06 - 04:50. Nautical Dark: 21:56 - 04:00. Astro Dark: 22:59 - 02:55

Total Clouds (% Sky Obscured)

87
98
100
100
100
100
100
100
100
100
95
82
100
100
100
94
91
97
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

74
64
52
46
57
50
56
84
81
72
50
44
36
31
41
41
32
28
22
15
24
35
45
55

Medium Clouds (% Sky Obscured)

84
94
86
99
100
100
64
55
89
91
91
82
91
100
100
34
30
39
38
55
61
44
55
100

High Clouds (% Sky Obscured)

35
69
75
100
100
100
100
100
76
100
81
61
97
77
86
79
89
96
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
8
2
4
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
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

4
1
5
4
6
5
6
14
42
95
95
56
6
1
0
0
0
5
6
4
12
9
5
5

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.7
1.8
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
6
7
7
8
8
8
8
8
8
11
4
2
4
3
4
4
3
3
3
3
3
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
11
11
13
13
14
15
15
15
15
13
15
14
12
12
10
10
11
9
8
8
8
7
9

Dew Point (°C)

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

Relative Humidity (%)

83
72
59
55
58
58
58
58
58
63
87
96
95
95
96
95
96
96
96
95
95
95
95
93

Pressure (mb)

1018
1018
1018
1017
1017
1016
1015
1015
1014
1013
1013
1013
1013
1013
1013
1012
1012
1012
1011
1011
1011
1011
1011
1011

Ozone (du)

372
373
376
376
377
379
378
377
379
378
378
380
383
383
385
387
384
381
381
381
382
384
385
386

Sunday 3

Waning Gibbous 95%

23:12

06:09

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:27, Set: 20:29, Transit: 12:59. Moon - Rise: 23:12, Set: 06:09. Civil Dark: 21:08 - 04:48. Nautical Dark: 21:59 - 03:57. Astro Dark: 23:03 - 02:52

Total Clouds (% Sky Obscured)

100
100
88
78
66
62
59
56
57
56
49
62
75
95
87
84
80
75
66
57
65
72
85
83

Low Clouds (% Sky Obscured)

57
61
55
49
45
42
38
36
36
42
37
45
53
69
61
50
36
40
44
44
51
57
64
66

Medium Clouds (% Sky Obscured)

96
100
83
70
58
60
59
56
10
10
10
21
34
44
43
40
30
26
21
18
27
43
59
55

High Clouds (% Sky Obscured)

100
100
67
40
10
10
10
10
10
0
0
23
43
60
50
46
34
28
19
7
5
2
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

5
5
10
26
26
18
14
6
20
21
21
26
32
41
50
61
57
46
28
8
32
40
41
36

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.5
0.3
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
86
83
78
74
69
67
63
59
58
67
75
82
87
88
90
91
91
91
90
90
90
90
84

Pressure (mb)

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

Ozone (du)

386
386
384
384
385
388
389
391
390
390
389
387
386
385
384
382
380
379
379
378
377
377
378
378

Monday 4

Waning Gibbous 90%

00:15

06:51

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:26, Set: 20:31, Transit: 12:59. Moon - Rise: 00:15, Set: 06:51. Civil Dark: 21:10 - 04:46. Nautical Dark: 22:01 - 03:55. Astro Dark: 23:06 - 02:48

Total Clouds (% Sky Obscured)

76
74
85
94
98
96
94
91
78
64
51
92
92
92
92
92
92
94
97
100
98
97
95
91

Low Clouds (% Sky Obscured)

59
55
59
61
63
68
70
73
62
51
40
76
69
62
68
74
80
87
89
95
76
67
55
49

Medium Clouds (% Sky Obscured)

51
47
51
54
63
52
46
47
42
36
26
42
23
15
11
7
7
15
22
32
36
39
45
59

High Clouds (% Sky Obscured)

0
0
0
0
0
1
0
1
1
12
16
49
51
32
20
18
15
15
15
15
11
12
22
26

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 (%)

27
9
13
21
19
20
17
18
23
25
26
30
27
25
22
17
5
10
10
9
12
13
13
17

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
13
15
15
16
16
15
15
15
14
14
14
13
13
12
12
12
12
8
8
9
8
8
7

Dew Point (°C)

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

Relative Humidity (%)

78
72
66
63
60
56
54
54
63
73
77
78
80
84
87
90
91
95
95
95
95
95
93
93

Pressure (mb)

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

Ozone (du)

378
377
375
374
372
372
371
370
370
368
367
366
369
373
376
378
379
380
380
379
379
378
378
377

Tuesday 5

Waning Gibbous 83%

01:06

07:46

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
00 OK
01 OK
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:24, Set: 20:32, Transit: 12:59. Moon - Rise: 01:06, Set: 07:46. Civil Dark: 21:12 - 04:44. Nautical Dark: 22:03 - 03:52. Astro Dark: 23:10 - 02:44

Total Clouds (% Sky Obscured)

86
82
77
71
68
79
88
98
96
94
92
86
80
75
57
38
20
33
49
58
59
69
73
80

Low Clouds (% Sky Obscured)

46
44
49
54
58
58
53
53
47
42
42
46
50
58
38
19
0
4
8
12
28
44
59
68

Medium Clouds (% Sky Obscured)

74
82
77
71
68
79
64
64
67
60
28
31
39
50
52
38
20
33
49
58
59
58
49
34

High Clouds (% Sky Obscured)

20
14
14
10
5
0
0
0
0
5
14
34
33
31
30
27
20
23
25
27
28
25
45
48

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

21
24
26
35
47
44
40
38
39
38
39
37
33
23
19
13
3
4
4
3
10
11
6
12

Precipitation Amount (mm)

0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

11
12
13
13
14
14
15
15
16
15
15
14
13
11
10
10
9
9
8
7
7
7
6
6

Feels Like (°C)

9
10
11
11
12
12
14
13
13
13
14
14
12
12
11
10
9
8
6
5
4
4
3
3

Dew Point (°C)

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

Relative Humidity (%)

90
87
86
82
79
76
71
66
63
66
70
74
76
79
80
77
74
70
75
81
87
85
82
81

Pressure (mb)

1012
1012
1012
1012
1011
1011
1010
1010
1009
1009
1009
1009
1009
1010
1010
1010
1010
1010
1010
1010
1010
1011
1011
1012

Ozone (du)

377
378
378
378
379
380
380
381
381
382
384
385
385
385
385
387
389
391
391
390
389
388
388
387

Wednesday 6

Waning Gibbous 75%

01:45

No Set

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 OK
23 OK
00 Good

Sun - Rise: 05:22, Set: 20:34, Transit: 12:59. Moon - Rise: 01:45, Set: No Set. Civil Dark: 21:13 - 04:42. Nautical Dark: 22:05 - 03:50. Astro Dark: 23:14 - 02:40

Total Clouds (% Sky Obscured)

86
92
95
97
98
88
84
82
87
90
84
79
72
67
47
31
13

Low Clouds (% Sky Obscured)

78
88
82
73
68
51
33
26
34
44
55
41
29
18
12
6
0

Medium Clouds (% Sky Obscured)

19
3
5
9
12
21
19
14
10
6
1
10
18
26
19
11
3

High Clouds (% Sky Obscured)

41
33
24
16
6
4
2
1
1
2
2
3
6
7
12
12
8

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

11
4
8
11
13
13
11
2
2
2
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

Wind Speed/Direction (mph)

12
13
14
13
13
12
12
11
11
10
10
9
8
6
6
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
71
66
63
61
59
57
56
55
55
55
55
57
59
62
62
64

Pressure (mb)

1012
1012
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1015
1015
1016
1016
1016

Ozone (du)

387
388
388
388
388
387
388
388
388
387
385
384
385
386
387
388
390

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

Generated: 30/04/26 08:04:45. Forecast: 30/04/26 to 06/05/26. Timezone: UTC+1.00