Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 29

Waxing Gibbous 97%

19:33

04:44

23 Good
00 Good
01 Good
02 Good
03 Good
04 Good
05 Good
06 Good
07 Good
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

Sun - Rise: 05:34, Set: 20:25, Transit: 12:59. Moon - Rise: 19:33, Set: 04:44. Civil Dark: 21:03 - 04:56. Nautical Dark: 21:53 - 04:06. Astro Dark: 22:55 - 03:04

Total 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

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
0
0
0
0

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)

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

Chance of Frost

Temperature (°C)

10
10
9
9
9
9
8
8
9
10
12
14
16
17
18
18
19
18
18
16
15
14
12
12

Feels Like (°C)

6
5
4
6
5
5
5
5
5
6
8
10
11
12
13
14
15
15
14
13
13
12
11
10

Dew Point (°C)

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

Relative Humidity (%)

69
72
74
75
80
82
81
82
80
73
67
59
53
49
47
46
48
52
56
59
64
70
73
76

Pressure (mb)

1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023
1023
1022
1022
1021
1021
1021
1021
1022
1022
1022

Ozone (du)

382
382
383
383
383
383
382
383
384
384
383
381
381
381
381
381
381
381
382
382
381
381
380
379

Thursday 30

Waxing Gibbous 99%

20:48

04:57

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 Bad
12 Bad
13 OK
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:32, Set: 20:27, Transit: 12:59. Moon - Rise: 20:48, Set: 04:57. Civil Dark: 21:05 - 04:54. Nautical Dark: 21:55 - 04:03. Astro Dark: 22:58 - 03:01

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
4
28
45
62
73
39
54
69
57
65
91
98
97
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
23
0
0
23
51
35
47
69
80
68
77

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
14
28
38
31
19
27
30
23
17
29
76
71
80
80

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
1
1
12
2
0
2
17
65
88
88
99
95

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
1
3
23
41
37
23
17
10

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

Chance of Frost

Temperature (°C)

12
11
11
10
10
10
10
9
10
12
14
16
18
19
21
22
23
22
21
19
18
17
15
15

Feels Like (°C)

10
10
10
9
9
8
8
8
9
10
12
15
17
18
20
21
22
21
21
19
18
15
15
13

Dew Point (°C)

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

Relative Humidity (%)

77
79
81
78
78
77
78
80
77
70
64
61
58
57
57
56
57
60
64
71
78
86
93
96

Pressure (mb)

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

Ozone (du)

378
377
376
374
374
375
376
377
377
377
378
378
378
378
377
376
377
377
376
373
366
364
366
366

Friday 1

Full Moon 100%

22:03

05:14

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
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:30, Set: 20:28, Transit: 12:59. Moon - Rise: 22:03, Set: 05:14. Civil Dark: 21:07 - 04:52. Nautical Dark: 21:58 - 04:01. Astro Dark: N/A - 02:57

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
99
96
93
71
82
76
82
84
83
97
97
100
100
100
100
99
99
99

Low Clouds (% Sky Obscured)

51
52
44
36
30
24
24
31
37
38
55
49
50
45
48
89
68
87
72
41
28
49
55
72

Medium Clouds (% Sky Obscured)

83
40
61
12
31
25
91
96
93
71
59
55
82
84
83
92
88
97
100
92
93
95
97
98

High Clouds (% Sky Obscured)

92
100
97
100
100
100
94
87
40
35
42
30
56
64
10
20
57
97
73
100
97
92
88
92

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

3
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
40
68
73
61
30
32
37
46

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
13
12
11
11
10
10
10
10
11
13
14
15
17
18
19
19
19
18
17
15
14
13
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
93
95
95
95
95
91
84
76
64
56
56
58
61
62
65
74
85
90
93
93
92

Pressure (mb)

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

Ozone (du)

366
365
364
363
362
362
362
362
365
368
369
371
374
375
377
377
378
378
378
379
378
381
382
382

Saturday 2

Waning Gibbous 98%

No Rise

05:36

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
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:28, Set: 20:30, Transit: 12:59. Moon - Rise: No Rise, Set: 05:36. Civil Dark: 21:09 - 04:50. Nautical Dark: 22:00 - 03:58. Astro Dark: 23:02 - 02:53

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
99
100
83
82
87
85
72
76
76
78
67
65
56
57

Low Clouds (% Sky Obscured)

86
100
98
97
95
94
93
85
90
93
85
81
69
63
64
65
56
61
59
62
40
43
47
46

Medium Clouds (% Sky Obscured)

99
100
99
98
98
98
99
100
93
73
30
23
22
24
23
24
23
27
31
27
20
12
2
6

High Clouds (% Sky Obscured)

96
100
100
100
100
100
100
100
96
92
89
94
76
65
37
20
2
3
2
2
3
1
1
0

ISS Passover

Visibility (miles)

9
9
9
7
9
9
8
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

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

Precipitation Probability (%)

64
65
90
95
95
95
86
64
54
50
52
68
70
64
57
45
21
25
23
20
17
14
12
10

Precipitation Amount (mm)

0.3
0
0.4
0.5
0.6
0.8
0.4
0
0
0
0
0.3
0.4
0.3
0.2
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
89
92
93
91
95
95
93
90
89
80
73
64
60
58
66
61
67
68
74
83
86
87

Pressure (mb)

1012
1012
1011
1010
1010
1009
1009
1009
1008
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1010
1010
1011

Ozone (du)

383
383
385
385
386
385
386
387
388
389
390
391
392
390
389
388
386
383
381
380
378
378
377
378

Sunday 3

Waning Gibbous 95%

23:13

06:07

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
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:27, Set: 20:31, Transit: 12:59. Moon - Rise: 23:13, Set: 06:07. Civil Dark: 21:11 - 04:47. Nautical Dark: 22:02 - 03:56. Astro Dark: 23:05 - 02:49

Total Clouds (% Sky Obscured)

58
63
68
74
79
85
93
95
90
89
94
97
96
95
90
85
79
71
62
54
52
51
50
65

Low Clouds (% Sky Obscured)

48
47
56
67
78
82
86
90
89
89
92
96
96
95
90
85
79
71
62
54
52
51
50
62

Medium Clouds (% Sky Obscured)

11
15
14
10
5
4
2
0
7
13
21
14
8
0
0
0
0
0
1
1
1
2
2
8

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
7
14
25
21
21
25
38
42
37
40

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 (%)

7
4
7
7
2
6
6
6
6
5
4
7
13
26
40
33
25
24
22
21
20
16
11
12

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
91
91
91
91
93
91
87
81
77
72
67
63
58
58
58
58
63
71
79
80
81
84

Pressure (mb)

1011
1011
1011
1011
1011
1011
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013
1012
1012
1012
1012
1012
1012
1013
1013

Ozone (du)

377
376
376
376
377
378
378
379
379
378
377
377
376
373
369
368
367
365
366
366
366
369
371
374

Monday 4

Waning Gibbous 90%

00:16

06:49

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
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:25, Set: 20:33, Transit: 12:59. Moon - Rise: 00:16, Set: 06:49. Civil Dark: 21:12 - 04:45. Nautical Dark: 22:05 - 03:53. Astro Dark: 23:09 - 02:45

Total Clouds (% Sky Obscured)

79
94
95
97
98
94
90
88
78
70
62
74
79
81
83
85
82
79
75
70
74
75
76
50

Low Clouds (% Sky Obscured)

74
86
89
92
95
75
54
36
42
51
60
60
60
58
51
44
37
36
34
33
45
57
68
46

Medium Clouds (% Sky Obscured)

14
20
20
28
36
31
30
29
10
2
0
3
6
18
35
44
54
59
60
59
50
37
26
12

High Clouds (% Sky Obscured)

42
45
39
29
29
15
10
6
5
5
5
5
5
5
4
3
2
0
0
4
11
16
22
16

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
Very Light Rain
None
None
None
None

Precipitation Probability (%)

11
8
14
17
14
14
15
14
16
13
6
16
15
9
12
16
22
36
50
57
50
38
14
17

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
85
85
87
90
91
91
91
93
88
84
81
77
74
70
68
64
61
68
76
86
83
83
81

Pressure (mb)

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

Ozone (du)

376
379
381
382
382
383
382
380
379
380
381
381
380
379
378
378
378
379
379
379
379
380
382
384

Tuesday 5

Waning Gibbous 83%

01:08

07:44

23 OK
00 Good
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: 05:23, Set: 20:35, Transit: 12:59. Moon - Rise: 01:08, Set: 07:44. Civil Dark: 21:14 - 04:43. Nautical Dark: 22:07 - 03:51. Astro Dark: 23:13 - 02:41

Total Clouds (% Sky Obscured)

25
5
24
43
62
65
68
72
81
91
100
100
100
100
85
72
70
61
48
38

Low Clouds (% Sky Obscured)

23
5
24
43
62
65
68
70
80
90
100
89
75
58
47
42
36
26
16
14

Medium Clouds (% Sky Obscured)

5
0
0
0
0
0
0
0
3
5
4
3
4
10
16
15
11
14
15
15

High Clouds (% Sky Obscured)

9
0
0
0
1
0
0
0
1
1
2
5
8
8
4
2
1
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
6
3
0
2
3
5
6
8
9
9
9

Fog (%)

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

Precipitation Probability (%)

15
10
7
2
0
3
3
3
18
23
25
29
30
29
31
32
29
28
27
18

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
71
67
72
75
79
82
83
88
89
93
94
90
83
79
69
61
53
56
58

Pressure (mb)

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

Ozone (du)

382
381
380
381
383
385
386
388
389
392
395
398
397
396
395
395
394
394
397
400

Forecast for Great Missenden, Buckinghamshire, United Kingdom (51.70,-0.70)

Generated: 29/04/26 23:41:41. Forecast: 29/04/26 to 05/05/26. Timezone: UTC+1.00