Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 30

Waxing Gibbous 99%

19:37

05:02

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

Sun - Rise: 05:37, Set: 20:28, Transit: 13:03. Moon - Rise: 19:37, Set: 05:02. Civil Dark: 21:06 - 04:59. Nautical Dark: 21:55 - 04:09. Astro Dark: 22:56 - 03:08

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
9
30
35
50
48
74
67
67
74
81
100
79
78
100
84

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
14
38
40
51
48
62
74
73

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
7
24
28
42
41
66
59
54
59
68
46
42
31
31
18

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
1
3
4
30
5
11
33
14

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
5

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
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
7
25
17
23
35
44
66
73

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
0.6
0.6

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
66
69
70
66
64
69
75
78
78
78
80
82
82
83
77
74
73
76
77
77
80
80
78

Pressure (mb)

1019
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1021
1020
1020
1020
1019
1019

Ozone (du)

378
375
373
373
372
373
373
373
372
372
371
369
369
370
370
369
367
365
363
363
362
362
360
357

Friday 1

Full Moon 100%

20:51

05:19

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

Sun - Rise: 05:35, Set: 20:30, Transit: 13:03. Moon - Rise: 20:51, Set: 05:19. Civil Dark: 21:08 - 04:57. Nautical Dark: 21:58 - 04:07. Astro Dark: 22:59 - 03:04

Total Clouds (% Sky Obscured)

86
63
53
69
100
100
88
100
98
100
100
98
87
67
73
72
100
100
99
100
100
99
100
100

Low Clouds (% Sky Obscured)

75
63
53
58
27
34
11
0
0
6
28
12
40
34
46
28
38
6
23
4
30
35
33
54

Medium Clouds (% Sky Obscured)

16
3
5
2
2
2
14
14
18
92
98
97
86
67
73
71
47
38
45
62
51
96
95
100

High Clouds (% Sky Obscured)

47
44
49
67
100
100
87
100
97
89
100
66
45
55
50
56
99
95
95
100
97
88
100
100

ISS Passover

Visibility (miles)

9
4
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

Light Rain
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 (%)

68
35
7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
40
67

Precipitation Amount (mm)

0.5
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)

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

Chance of Frost

Temperature (°C)

18
18
17
16
15
13
12
11
10
9
9
9
9
9
9
11
13
15
16
17
18
18
19
18

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
88
88
90
93
92
92
91
91
93
93
91
91
90
88
83
76
70
65
64
63
62
62
63

Pressure (mb)

1019
1019
1019
1019
1020
1020
1020
1020
1020
1020
1019
1019
1019
1018
1018
1019
1018
1018
1017
1017
1016
1015
1014
1013

Ozone (du)

353
352
358
361
360
361
361
362
363
364
365
366
367
370
373
374
374
373
374
375
373
374
374
374

Saturday 2

Waning Gibbous 98%

22:05

05:42

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

Sun - Rise: 05:34, Set: 20:31, Transit: 13:03. Moon - Rise: 22:05, Set: 05:42. Civil Dark: 21:10 - 04:55. Nautical Dark: 22:00 - 04:04. Astro Dark: 23:03 - 03:00

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
90
87
73
81
88
95
79
74
79
74
55

Low Clouds (% Sky Obscured)

34
22
46
79
83
94
92
90
90
100
100
100
93
81
77
66
73
70
70
66
61
71
64
47

Medium Clouds (% Sky Obscured)

100
100
100
99
68
99
100
100
99
99
100
85
85
80
80
4
3
4
23
24
22
18
14
10

High Clouds (% Sky Obscured)

100
50
100
100
100
88
100
100
100
100
100
100
100
53
14
18
22
62
72
0
0
0
0
0

ISS Passover

Visibility (miles)

8
9
9
9
9
9
6
2
2
4
0
0
0
0
9
9
9
9
9
9
8
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
99
91
69
86
16
13
13
13
13
13
13
13
13
13
13

Precipitation Type

None
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
Light Rain
None
None
None
None

Precipitation Probability (%)

72
87
67
40
49
72
95
95
95
88
74
66
47
14
3
12
20
28
48
75
52
37
33
33

Precipitation Amount (mm)

0
0.5
0.4
0
0
0.2
1.6
1.2
1.7
0.3
0.3
0.2
0
0
0
0
0
0
0
0.5
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
16
14
13
12
12
12
12
12
12
12
12
12
11
11
11
12
13
15
15
16
16
15
16

Feels Like (°C)

16
14
13
12
12
11
10
11
11
11
11
11
11
10
10
9
10
11
11
12
12
12
12
12

Dew Point (°C)

13
13
12
12
11
11
11
12
12
12
12
12
12
11
11
11
11
12
12
11
12
11
13
12

Relative Humidity (%)

74
82
92
92
92
92
93
98
98
98
98
98
98
98
98
95
95
89
82
76
79
72
83
78

Pressure (mb)

1013
1013
1012
1011
1011
1011
1010
1009
1008
1007
1007
1006
1006
1006
1007
1008
1008
1008
1008
1008
1008
1008
1008
1008

Ozone (du)

374
376
378
380
380
382
380
382
381
383
382
384
387
392
396
398
392
393
394
392
390
387
384
385

Sunday 3

Waning Gibbous 95%

23:16

06:13

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

Sun - Rise: 05:32, Set: 20:33, Transit: 13:03. Moon - Rise: 23:16, Set: 06:13. Civil Dark: 21:12 - 04:53. Nautical Dark: 22:02 - 04:02. Astro Dark: 23:06 - 02:57

Total Clouds (% Sky Obscured)

66
32
29
37
36
39
45
50
45
36
31
28
25
27
34
42
48
53
55
56
69
83
94
83

Low Clouds (% Sky Obscured)

53
32
29
37
36
39
45
50
45
36
31
28
25
27
34
42
45
39
31
30
48
69
86
70

Medium Clouds (% Sky Obscured)

7
3
3
1
0
0
0
3
3
0
0
0
0
0
0
0
0
10
20
29
28
21
21
26

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
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 (%)

13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13

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 (%)

26
21
14
9
0
1
2
2
5
7
4
8
7
4
9
9
5
13
13
25
29
22
15
25

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)

13
11
10
7
6
5
5
5
5
5
4
4
4
4
4
5
5
6
6
6
6
6
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
82
83
90
95
95
96
96
96
96
96
96
96
96
93
88
83
76
70
66
62
60
59
61

Pressure (mb)

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

Ozone (du)

385
387
386
388
391
394
395
396
396
396
394
392
391
389
389
387
384
383
383
384
384
382
381
380

Monday 4

Waning Gibbous 90%

00:18

06:56

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

Sun - Rise: 05:30, Set: 20:35, Transit: 13:03. Moon - Rise: 00:18, Set: 06:56. Civil Dark: 21:13 - 04:51. Nautical Dark: 22:04 - 03:59. Astro Dark: 23:10 - 02:53

Total Clouds (% Sky Obscured)

84
79
73
55
49
60
66
71
72
73
75
67
54
44
43
61
68
87
89
87
89
91
94
90

Low Clouds (% Sky Obscured)

62
52
43
33
27
37
47
53
59
62
65
56
46
37
43
47
45
50
56
61
65
68
73
70

Medium Clouds (% Sky Obscured)

75
79
65
36
28
33
34
38
40
37
37
30
21
15
5
4
4
4
7
9
17
23
25
22

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
12
2
0
1
33
25
1
1
0
0
0
1
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
9

Fog (%)

13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13

Precipitation Type

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
None

Precipitation Probability (%)

25
29
20
11
2
4
4
1
1
1
0
3
3
1
1
1
1
10
17
24
34
40
46
42

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
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

60
64
73
79
87
88
87
87
88
90
91
93
94
96
94
87
78
71
68
66
64
68
70
74

Pressure (mb)

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

Ozone (du)

379
379
379
380
386
392
395
396
395
392
388
384
381
379
377
378
378
378
378
378
377
377
376
375

Tuesday 5

Waning Gibbous 83%

01:10

07:51

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

Sun - Rise: 05:28, Set: 20:36, Transit: 13:03. Moon - Rise: 01:10, Set: 07:51. Civil Dark: 21:15 - 04:49. Nautical Dark: 22:07 - 03:57. Astro Dark: 23:13 - 02:49

Total Clouds (% Sky Obscured)

87
83
78
73
68
53
39
29
34
45
49
70
86
100
94
85
81
79
67
51
65
78
91
93

Low Clouds (% Sky Obscured)

65
64
61
57
51
32
19
8
20
30
40
32
25
22
25
28
32
36
38
41
30
20
10
7

Medium Clouds (% Sky Obscured)

22
15
12
6
6
6
5
5
7
8
13
6
4
1
2
3
4
4
4
4
8
12
17
13

High Clouds (% Sky Obscured)

14
20
20
15
9
9
5
0
0
0
0
33
67
100
94
85
80
63
47
29
22
14
8
35

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 (%)

13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13

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 (%)

38
32
27
21
10
12
10
1
3
3
0
1
1
0
0
0
0
9
12
15
18
21
25
27

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
12
12
9
8
7
7
6
5
4
4
4
4
4
4
2
3
4
5
5
6
8
8
8

Dew Point (°C)

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

Relative Humidity (%)

74
73
75
78
82
87
90
91
94
96
94
94
94
94
94
87
78
72
68
67
64
65
67
68

Pressure (mb)

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

Ozone (du)

375
375
375
377
378
380
382
384
385
386
386
387
387
388
388
387
386
386
386
386
386
385
384
383

Wednesday 6

Waning Gibbous 75%

01:49

08:56

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 OK
08 OK
09 Good
10 OK
11 OK
12 OK

Sun - Rise: 05:26, Set: 20:38, Transit: 13:03. Moon - Rise: 01:49, Set: 08:56. Civil Dark: 21:17 - 04:47. Nautical Dark: 22:09 - 03:55. Astro Dark: 23:17 - 02:45

Total Clouds (% Sky Obscured)

95
96
97
99
100
98
96
93
95
95
93
83
73
64
43
24
9
11
12
14

Low Clouds (% Sky Obscured)

3
0
4
7
6
7
5
3
5
12
16
17
13
2
4
3
5
11
12
14

Medium Clouds (% Sky Obscured)

10
5
7
10
15
46
70
93
73
54
35
34
33
28
30
24
9
11
12
14

High Clouds (% Sky Obscured)

61
79
84
90
97
76
55
29
24
36
52
41
32
22
27
24
9
11
12
14

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13

Precipitation Type

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

Precipitation Probability (%)

32
38
33
26
13
11
8
2
5
4
0
0
0
0
0
0
0
3
2
1

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
8
7
6
5
4
5
5
6
6
6
6
6
6
6
9
11
14
13
13

Chance of Frost

Temperature (°C)

10
10
9
7
6
5
5
4
4
3
2
1
2
2
3
5
6
8
9
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
81
87
88
86
88
88
89
89
91
91
91
89
86
85
73
64
55
52
49

Pressure (mb)

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

Ozone (du)

383
384
384
387
390
393
393
393
393
392
390
389
391
393
396
396
397
397
397
397

Forecast for Marlborough, Wiltshire, United Kingdom (51.42,-1.73)

Generated: 30/04/26 16:58:27. Forecast: 30/04/26 to 06/05/26. Timezone: UTC+1.00