Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 25

Waning Gibbous 96%

22:38

06:18

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

Sun - Rise: 05:40, Set: 20:18, Transit: 13:00. Moon - Rise: 22:38, Set: 06:18. Civil Dark: 20:56 - 05:02. Nautical Dark: 21:44 - 04:13. Astro Dark: 22:43 - 03:14

Total Clouds (% Sky Obscured)

86
89
90
93
94
94
100
99
94
89
95
96
83
78
96
96
85
74
83
94
97
98
71
63

Low Clouds (% Sky Obscured)

69
68
79
88
83
75
52
3
1
2
1
2
3
4
29
46
49
41
41
55
43
39
40
45

Medium Clouds (% Sky Obscured)

64
61
47
44
47
62
47
81
77
60
62
55
47
70
83
76
71
62
68
77
57
63
50
59

High Clouds (% Sky Obscured)

62
8
36
42
44
71
97
97
80
66
65
57
50
11
57
49
18
10
17
2
4
28
13
17

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 (%)

5
8
5
21
18
11
5
1
1
0
0
0
0
0
0
0
1
5
5
4
3
13
5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
88
94
96
96
94
94
94
94
98
96
94
94
93
86
82
75
67
60
57
56
58
62
70

Pressure (mb)

1001
1001
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1003
1003
1004
1004
1004
1004
1004
1003
1003
1003
1003
1003

Ozone (du)

422
424
425
425
425
425
425
424
425
427
429
430
432
433
433
432
434
440
440
438
438
440
442
443

Friday 26

Waning Gibbous 91%

23:56

06:47

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

Sun - Rise: 05:38, Set: 20:20, Transit: 13:00. Moon - Rise: 23:56, Set: 06:47. Civil Dark: 20:58 - 05:00. Nautical Dark: 21:47 - 04:11. Astro Dark: 22:46 - 03:10

Total Clouds (% Sky Obscured)

77
63
96
96
100
100
100
100
100
100
100
99
98
92
96
98
99
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

63
56
24
30
25
35
62
71
69
76
84
85
81
85
92
91
91
100
100
100
100
96
80
76

Medium Clouds (% Sky Obscured)

65
44
89
89
100
100
100
100
100
100
89
89
89
83
91
95
86
64
43
33
68
98
100
100

High Clouds (% Sky Obscured)

3
10
52
50
98
100
100
100
100
100
100
96
95
85
82
67
3
40
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
8
9
9
5
5
5
7
4
1
0
0
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

5
1
1
3
10
22
37
45
52
65
61
54
56
57
35
19
7
10
11
11
21
20
6
7

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

11
11
9
7
6
6
6
5
5
5
5
5
5
5
6
7
8
8
8
9
9
9
9
9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
74
74
79
85
83
86
91
91
93
94
94
96
96
98
98
98
96
96
96
96
93
87
87

Pressure (mb)

1003
1003
1003
1004
1004
1004
1004
1004
1003
1003
1003
1003
1003
1003
1003
1004
1004
1004
1003
1004
1004
1003
1003
1003

Ozone (du)

444
445
446
446
444
442
440
438
438
437
437
439
440
438
437
440
442
439
433
431
430
430
428
428

Saturday 27

Waning Gibbous 83%

01:08

07:31

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

Sun - Rise: 05:36, Set: 20:22, Transit: 13:00. Moon - Rise: 01:08, Set: 07:31. Civil Dark: 21:00 - 04:58. Nautical Dark: 21:49 - 04:08. Astro Dark: 22:49 - 03:07

Total Clouds (% Sky Obscured)

100
99
92
93
100
100
100
100
100
100
100
100
100
100
84
91
78
74
49
54
65
75
63
51

Low Clouds (% Sky Obscured)

77
71
54
25
30
54
67
70
75
82
82
82
71
63
71
72
74
68
42
46
47
48
38
27

Medium Clouds (% Sky Obscured)

100
95
85
79
99
100
100
100
100
100
100
95
100
100
65
45
45
4
1
11
23
35
24
12

High Clouds (% Sky Obscured)

58
55
52
78
100
100
100
100
100
100
100
100
100
85
58
85
51
45
45
23
9
2
0
3

ISS Passover

Visibility (miles)

9
6
8
6
6
6
2
1
0
0
0
0
0
1
2
5
6
6
6
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

30
34
41
38
36
43
40
43
83
95
95
95
84
69
42
27
22
21
26
24
20
8
18
18

Precipitation Amount (mm)

0
0
0
0
0
0.2
0
0
0.4
1.4
1.3
0.6
0.4
0.3
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
93
96
96
98
96
98
98
98
98
98
98
98
98
98
98
96
96
96
96
96
95
95
95

Pressure (mb)

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

Ozone (du)

429
428
428
427
430
434
434
435
436
434
434
437
438
442
442
444
447
447
444
443
441
439
436
434

Sunday 28

Waning Gibbous 74%

02:07

08:33

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

Sun - Rise: 05:34, Set: 20:23, Transit: 13:00. Moon - Rise: 02:07, Set: 08:33. Civil Dark: 21:02 - 04:56. Nautical Dark: 21:51 - 04:06. Astro Dark: 22:53 - 03:03

Total Clouds (% Sky Obscured)

35
28
32
22
30
36
5
2
1
2
4
10
17
27
37
47
39
36
32
55
51
27
44
18

Low Clouds (% Sky Obscured)

16
13
3
9
14
19
1
0
0
0
6
12
17
23
29
35
30
26
21
36
38
27
38
21

Medium Clouds (% Sky Obscured)

25
29
35
3
0
0
0
0
0
0
0
0
0
17
33
45
37
26
20
11
7
0
0
0

High Clouds (% Sky Obscured)

2
0
0
0
0
1
2
1
1
2
0
3
6
15
24
37
31
19
3
2
2
2
1
1

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 (%)

19
19
17
10
3
2
0
0
0
0
0
0
0
0
0
0
0
1
19
6
2
11
5
1

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
7
7
6
6
7
6
6
6
6
6
6
6
5
7
9
11
12
12
12
12
12
13
12

Chance of Frost

Temperature (°C)

11
11
10
9
7
7
7
6
6
5
5
5
5
5
7
9
11
12
13
13
14
14
15
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
91
96
95
94
94
96
96
94
93
94
94
93
93
88
82
78
70
64
60
59
58
61
67

Pressure (mb)

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

Ozone (du)

433
432
432
435
434
434
440
442
440
437
435
434
434
437
441
440
438
437
435
438
440
441
437
434

Monday 29

Waning Gibbous 64%

02:50

09:50

18 OK
19 Good
20 Good
21 OK
22 OK
23 OK
00 OK
01 OK
02 OK
03 Good
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

Sun - Rise: 05:32, Set: 20:25, Transit: 13:00. Moon - Rise: 02:50, Set: 09:50. Civil Dark: 21:04 - 04:54. Nautical Dark: 21:54 - 04:03. Astro Dark: 22:56 - 02:59

Total Clouds (% Sky Obscured)

14
9
5
43
45
28
27
33
25
15
36
55
77
59
80
100
100
100
100
100
100
100
95
90

Low Clouds (% Sky Obscured)

17
12
6
0
0
0
0
1
1
1
1
1
0
23
34
45
60
73
86
91
96
100
89
78

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
10
20
64
65
84
96
84
72
62
76
83
90
79
68

High Clouds (% Sky Obscured)

0
0
0
47
55
31
32
50
45
44
50
63
72
83
92
100
87
74
62
48
33
18
12
6

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
8
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
None
None
None
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
1
29
43
55
56
58
62
64
62
60
52
43

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
75
83
84
82
81
84
84
85
85
90
94
94
95
95
96
96
95
95
92
93
92
92
92

Pressure (mb)

1016
1016
1016
1017
1017
1017
1017
1016
1016
1016
1015
1015
1014
1014
1014
1014
1014
1013
1013
1013
1012
1012
1012
1012

Ozone (du)

434
430
427
422
425
427
425
425
425
425
426
426
427
427
429
431
433
431
429
427
428
428
428
432

Tuesday 30

Waning Gibbous 53%

03:20

11:16

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

Sun - Rise: 05:30, Set: 20:27, Transit: 12:59. Moon - Rise: 03:20, Set: 11:16. Civil Dark: 21:06 - 04:51. Nautical Dark: 21:56 - 04:00. Astro Dark: 23:00 - 02:56

Total Clouds (% Sky Obscured)

85
86
85
85
90
94
98
97
96
95
92
89
86
83
80
79
85
90
94
89
86
82
83
84

Low Clouds (% Sky Obscured)

67
64
62
61
62
62
62
58
53
44
47
53
55
56
59
66
67
67
68
68
68
65
67
72

Medium Clouds (% Sky Obscured)

54
43
30
23
30
38
45
53
60
66
66
62
58
53
43
32
38
42
50
43
34
28
18
10

High Clouds (% Sky Obscured)

1
7
12
17
27
33
39
53
66
81
72
64
55
41
28
14
21
27
33
33
33
31
44
57

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 (%)

36
31
24
10
10
8
1
10
13
10
18
18
14
10
6
2
11
14
12
15
16
14
18
19

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
92
93
95
96
96
98
96
96
96
96
98
98
98
95
93
90
90
89
89
89
90
90
90

Pressure (mb)

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

Ozone (du)

435
439
435
432
428
424
419
415
413
410
407
407
406
406
404
402
400
399
397
395
393
391
389
389

Wednesday 1

Third Quarter 41%

03:42

12:46

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 05:29, Set: 20:28, Transit: 12:59. Moon - Rise: 03:42, Set: 12:46. Civil Dark: 21:07 - 04:49. Nautical Dark: 21:58 - 03:58. Astro Dark: 23:03 - 02:52

Total Clouds (% Sky Obscured)

85
90
94
96
96
97
97
97
99
100
100
100
100
99
98
98
97
96
94

Low Clouds (% Sky Obscured)

74
80
85
91
94
96
96
97
99
100
100
100
100
99
98
97
97
96
96

Medium Clouds (% Sky Obscured)

2
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

70
68
70
68
49
31
11
18
24
29
33
34
27
20
11
2
2
2
3

ISS Passover

Visibility (miles)

9
9
9
9
8
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

Precipitation Type

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

Precipitation Probability (%)

21
15
10
2
2
1
0
0
0
0
0
0
0
0
0
0
4
5
3

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
93
93
95
95
95
93
93
91
91
91
91
90
88
88
89
87
87

Pressure (mb)

1016
1016
1017
1017
1018
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

389
388
388
387
387
386
385
385
384
383
382
381
380
379
377
376
375
374
374

Forecast for Bletchley, Milton Keynes, United Kingdom (51.99,-0.74)

Generated: 25/04/24 18:49:51. Forecast: 25/04/24 to 01/05/24. Timezone: UTC+1.00