Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 30

Waxing Gibbous 99%

19:35

04:56

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

Sun - Rise: 05:31, Set: 20:26, Transit: 13:00. Moon - Rise: 19:35, Set: 04:56. Civil Dark: 21:05 - 04:52. Nautical Dark: 21:55 - 04:01. Astro Dark: 22:59 - 02:57

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
16
29
23
34
42
57
48
46
81
68
59

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
14
0
0
7
37
42

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
9
14
7
6
13
24
25
14
39
31
26

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
4
6
9
0
1
4

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
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
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
8
14
36
56

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
0.2

Wind Speed/Direction (mph)

13
10
8
7
7
7
6
6
6
6
6
6
5
7
8
8
8
8
8
8
9
9
9
10

Chance of Frost

Temperature (°C)

16
14
12
11
11
10
10
9
8
8
8
7
9
12
14
17
19
21
22
23
23
24
23
22

Feels Like (°C)

14
13
10
10
9
9
8
7
7
6
6
6
8
10
13
16
18
21
22
22
23
23
23
22

Dew Point (°C)

11
10
9
8
8
8
7
6
5
4
4
4
5
7
8
9
11
13
14
14
15
16
17
17

Relative Humidity (%)

69
75
80
81
83
84
84
81
77
74
74
77
78
71
64
62
60
58
58
59
59
60
66
75

Pressure (mb)

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

Ozone (du)

382
383
383
382
380
377
375
375
374
373
372
372
373
374
374
373
371
368
367
368
370
370
368
364

Friday 1

Full Moon 100%

20:50

05:12

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 05:29, Set: 20:28, Transit: 12:59. Moon - Rise: 20:50, Set: 05:12. Civil Dark: 21:07 - 04:50. Nautical Dark: 21:58 - 03:59. Astro Dark: 23:02 - 02:53

Total Clouds (% Sky Obscured)

96
98
96
100
95
54
60
62
97
100
100
90
74
50
100
100
95
89
92
99
95
99
100
100

Low Clouds (% Sky Obscured)

33
33
47
74
60
36
44
18
8
29
19
29
35
0
0
3
4
18
0
5
24
45
39
58

Medium Clouds (% Sky Obscured)

45
50
43
26
22
47
1
22
21
65
81
81
72
50
67
68
40
22
54
46
60
94
98
100

High Clouds (% Sky Obscured)

49
60
39
100
89
54
60
62
97
100
99
72
52
50
100
93
75
85
91
93
66
65
90
100

ISS Passover

Visibility (miles)

7
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
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
Very Light Rain

Precipitation Probability (%)

30
13
4
23
7
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
40
69

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
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

21
17
16
16
14
14
12
11
10
9
8
8
10
11
13
15
16
19
18
19
21
21
20
19

Dew Point (°C)

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

Relative Humidity (%)

88
90
95
95
98
96
95
96
95
95
95
95
93
87
80
73
64
60
59
59
59
59
59
68

Pressure (mb)

1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1016
1016
1015
1014
1013
1013

Ozone (du)

360
360
366
366
366
364
362
362
364
365
364
366
368
369
370
370
371
372
373
373
373
373
374
374

Saturday 2

Waning Gibbous 98%

22:05

05:34

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 05:28, Set: 20:30, Transit: 12:59. Moon - Rise: 22:05, Set: 05:34. Civil Dark: 21:09 - 04:48. Nautical Dark: 22:00 - 03:56. Astro Dark: 23:06 - 02:49

Total Clouds (% Sky Obscured)

100
97
100
100
100
100
100
100
100
100
100
100
99
85
97
88
62
92
82
88
69
61
51
52

Low Clouds (% Sky Obscured)

38
53
65
66
68
78
92
86
79
77
94
94
98
65
65
51
57
42
39
51
45
39
28
23

Medium Clouds (% Sky Obscured)

100
97
85
71
100
100
100
100
100
100
99
100
82
70
26
0
0
10
20
31
42
37
32
30

High Clouds (% Sky Obscured)

100
60
100
100
100
100
100
100
100
100
100
100
77
81
50
39
4
50
36
19
0
0
0
0

ISS Passover

Visibility (miles)

7
8
9
9
9
9
9
2
2
3
9
9
4
9
9
9
7
8
8
4
5
8
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
None
None
None
None
Light Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Very Light Rain
None
None
None
Very Light Rain
None
Very Light Rain
Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

83
48
20
26
39
73
95
95
95
95
79
78
59
23
23
40
62
52
65
70
59
38
11
4

Precipitation Amount (mm)

0.5
0
0
0
0
0.4
1.5
2.5
1.6
0.6
0.2
0.4
0.2
0
0
0
0.3
0
0.3
0.4
0.3
0
0
0

Wind Speed/Direction (mph)

6
5
4
3
4
6
7
8
7
8
8
10
10
9
12
13
13
14
14
15
14
14
13
12

Chance of Frost

Temperature (°C)

18
16
15
14
14
13
13
13
13
13
13
13
13
13
14
14
16
16
17
17
17
17
17
16

Feels Like (°C)

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

Dew Point (°C)

13
14
13
12
12
11
11
12
13
13
13
12
13
13
13
12
12
13
12
12
13
13
13
12

Relative Humidity (%)

74
86
89
89
87
87
90
96
98
98
95
95
96
95
93
86
80
79
74
71
79
77
77
77

Pressure (mb)

1012
1012
1012
1011
1010
1010
1009
1008
1007
1006
1006
1006
1006
1006
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007

Ozone (du)

374
376
379
379
379
377
375
376
376
378
379
384
388
394
398
394
394
393
391
392
390
387
385
385

Sunday 3

Waning Gibbous 95%

23:16

06:05

19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 OK
01 Bad
02 Bad
03 OK
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

Sun - Rise: 05:26, Set: 20:31, Transit: 12:59. Moon - Rise: 23:16, Set: 06:05. Civil Dark: 21:11 - 04:46. Nautical Dark: 22:02 - 03:54. Astro Dark: 23:10 - 02:45

Total Clouds (% Sky Obscured)

56
54
55
47
36
27
34
36
34
35
35
51
59
67
69
73
77
86
87
85
85
84
81
77

Low Clouds (% Sky Obscured)

16
8
0
12
23
27
34
36
34
35
35
51
59
67
69
65
53
47
55
65
75
68
60
51

Medium Clouds (% Sky Obscured)

34
41
41
27
15
0
1
0
0
7
15
25
30
39
45
53
52
55
43
36
23
16
21
24

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

Precipitation Probability (%)

3
2
2
6
8
8
17
17
8
15
22
16
28
32
35
41
44
54
53
50
44
52
51
46

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
80
88
93
93
95
96
96
96
96
96
96
93
87
81
73
68
62
59
57
56
60
67
71

Pressure (mb)

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

Ozone (du)

384
383
384
387
390
391
392
393
392
391
391
391
389
386
383
381
381
382
383
383
381
379
378
377

Monday 4

Waning Gibbous 90%

00:19

06:47

19 Bad
20 Bad
21 Bad
22 OK
23 OK
00 OK
01 OK
02 OK
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

Sun - Rise: 05:24, Set: 20:33, Transit: 12:59. Moon - Rise: 00:19, Set: 06:47. Civil Dark: 21:12 - 04:44. Nautical Dark: 22:05 - 03:51. Astro Dark: 23:13 - 02:41

Total Clouds (% Sky Obscured)

71
59
59
40
22
0
18
34
43
44
51
52
51
54
65
79
84
84
87
90
93
94
94
95

Low Clouds (% Sky Obscured)

51
52
58
39
20
0
13
28
40
44
51
52
31
39
47
49
50
52
55
58
62
62
61
59

Medium Clouds (% Sky Obscured)

27
25
23
15
9
0
0
0
0
0
0
0
41
32
31
28
25
26
31
45
52
58
55
44

High Clouds (% Sky Obscured)

0
0
0
0
0
0
6
14
19
14
7
2
42
21
2
1
1
2
1
1
0
4
8
12

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 (%)

30
18
11
12
13
10
7
4
0
0
0
0
1
2
3
16
22
25
34
38
40
39
36
31

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
75
79
84
87
88
90
91
91
94
94
96
90
81
72
65
64
63
61
64
65
68
69
72

Pressure (mb)

1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1014
1013
1013
1013
1013
1012
1012
1012
1012

Ozone (du)

378
380
386
392
396
396
395
392
386
384
382
380
379
379
380
381
381
380
379
378
377
376
376
375

Tuesday 5

Waning Gibbous 83%

01:10

07:42

19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 OK
01 OK
02 OK
03 OK
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 Bad
17 Bad
18 Bad

Sun - Rise: 05:22, Set: 20:35, Transit: 12:59. Moon - Rise: 01:10, Set: 07:42. Civil Dark: 21:14 - 04:42. Nautical Dark: 22:07 - 03:49. Astro Dark: 23:17 - 02:37

Total Clouds (% Sky Obscured)

93
91
90
69
48
32
29
27
15
33
54
77
64
50
40
44
48
52
64
75
84
88
92
96

Low Clouds (% Sky Obscured)

61
63
65
47
28
10
10
18
15
14
14
20
25
36
40
44
41
39
36
39
41
33
23
18

Medium Clouds (% Sky Obscured)

34
21
17
11
6
1
3
5
5
3
2
1
1
1
1
5
8
11
9
7
4
8
10
10

High Clouds (% Sky Obscured)

16
18
18
14
10
10
9
7
6
30
50
69
51
38
26
27
29
34
43
43
44
52
57
61

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 (%)

30
29
27
22
16
7
16
15
5
17
16
7
9
6
2
9
12
14
15
15
15
14
14
15

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
10
9
9
8
7
6
3
3
2
2
2
2
3
3
5
5
5
6
8
8
8
8
8

Dew Point (°C)

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

Relative Humidity (%)

74
77
83
85
88
91
94
93
91
88
86
86
85
81
75
72
69
66
64
64
65
65
68
71

Pressure (mb)

1012
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014

Ozone (du)

375
377
379
381
382
383
384
385
386
387
387
387
388
388
387
387
387
387
387
386
385
384
385
385

Wednesday 6

Waning Gibbous 75%

01:49

08:48

19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 OK
07 OK
08 OK
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 05:20, Set: 20:36, Transit: 12:59. Moon - Rise: 01:49, Set: 08:48. Civil Dark: 21:16 - 04:40. Nautical Dark: 22:10 - 03:46. Astro Dark: 23:21 - 02:33

Total Clouds (% Sky Obscured)

98
99
100
100
100
100
96
87
74
57
39
22
23
38
47
63
79
87

Low Clouds (% Sky Obscured)

14
9
5
15
14
14
17
19
27
26
17
4
6
7
7
28
49
67

Medium Clouds (% Sky Obscured)

14
18
27
51
76
100
78
57
35
27
24
20
20
28
29
35
38
45

High Clouds (% Sky Obscured)

76
90
100
80
58
27
26
35
44
37
28
18
23
38
47
63
79
50

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

21
28
36
34
30
23
19
13
5
4
2
0
1
1
1
9
14
17

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
4
4
5
6
7
9
8
8
8
9
9
10
11
12
14
15
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
81
88
96
93
93
90
91
93
93
93
91
89
78
66
58
60
61

Pressure (mb)

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

Ozone (du)

386
388
390
392
395
398
401
399
397
394
395
395
396
397
398
400
401
403

Forecast for Milton Keynes, Milton Keynes, United Kingdom (52.04,-0.76)

Generated: 30/04/26 19:09:45. Forecast: 30/04/26 to 06/05/26. Timezone: UTC+1.00