Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 8

Waning Gibbous 59%

03:16

09:00

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

Sun - Rise: 06:22, Set: 19:52, Transit: 13:08. Moon - Rise: 03:16, Set: 09:00. Civil Dark: 20:27 - 05:48. Nautical Dark: 21:09 - 05:05. Astro Dark: 21:56 - 04:18

Total Clouds (% Sky Obscured)

0
1
0
0
0
6
0
13
13
0
0
0
0
1
1
1
3
1
24
60
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
28
54
70
64

Medium Clouds (% Sky Obscured)

0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
34
100

High Clouds (% Sky Obscured)

0
1
0
0
0
6
0
8
9
0
0
0
0
1
1
1
3
1
24
60
100
100
100
100

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
98
100
100
100
36

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
16
22
9
17
6
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
18
19
21
22
23
23
21
21
22
20
18
16
14
13
11
11
9
10
10
8
8
8
7

Dew Point (°C)

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

Relative Humidity (%)

82
79
77
75
75
73
73
80
84
82
86
87
89
90
89
90
91
93
93
96
96
96
96
90

Pressure (mb)

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

Ozone (du)

339
340
341
343
344
345
345
347
347
347
350
352
354
354
351
350
348
349
349
351
351
353
358
359

Thursday 9

Waning Gibbous 50%

03:51

09:59

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

Sun - Rise: 06:20, Set: 19:54, Transit: 13:08. Moon - Rise: 03:51, Set: 09:59. Civil Dark: 20:28 - 05:45. Nautical Dark: 21:11 - 05:02. Astro Dark: 21:58 - 04:15

Total Clouds (% Sky Obscured)

100
97
100
34
100
100
59
61
52
100
100
95
32
100
100
100
90
92
100
100
100
90
100
100

Low Clouds (% Sky Obscured)

42
60
52
12
74
100
59
61
42
38
10
32
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

82
49
36
34
2
58
30
2
6
0
0
0
0
2
56
62
76
92
100
80
99
90
100
98

High Clouds (% Sky Obscured)

100
95
100
34
100
39
20
25
52
100
95
93
32
100
100
100
72
51
100
95
89
20
100
100

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
1
2
6
25
2
20
2
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
12
13
15
17
18
20
18
16
17
16
13
9
7
7
6
6
5
4
3
2
1
2
2

Chance of Frost

Temperature (°C)

11
12
13
13
14
14
12
11
12
12
11
9
7
7
6
5
5
4
4
4
4
4
4
5

Feels Like (°C)

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

Dew Point (°C)

9
8
7
9
11
12
7
8
7
7
6
4
3
3
2
2
0
0
-0
0
1
0
0
0

Relative Humidity (%)

85
77
67
76
83
86
75
81
72
75
73
69
73
75
75
79
72
75
73
75
80
75
76
72

Pressure (mb)

1019
1020
1019
1019
1019
1019
1019
1020
1019
1020
1021
1022
1023
1024
1024
1024
1024
1023
1023
1023
1023
1023
1022
1022

Ozone (du)

359
361
363
367
368
370
372
377
382
383
383
379
377
372
366
363
359
358
355
352
350
350
352
352

Friday 10

Third Quarter 39%

04:17

11:09

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
08 Bad

Sun - Rise: 06:18, Set: 19:55, Transit: 13:08. Moon - Rise: 04:17, Set: 11:09. Civil Dark: 20:30 - 05:43. Nautical Dark: 21:13 - 05:00. Astro Dark: 22:01 - 04:12

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
88
100
91
94
97
100
100
100
100
95
89

Low Clouds (% Sky Obscured)

0
0
0
1
23
66
78
55
45
9
11
39
8
24
48
53
66
87
95
76
55
31
21
15

Medium Clouds (% Sky Obscured)

100
98
93
94
99
100
100
100
96
97
17
50
77
21
26
43
32
17
14
11
11
4
0
0

High Clouds (% Sky Obscured)

100
93
98
99
100
100
100
100
100
100
100
100
100
49
100
60
73
87
100
100
100
100
90
80

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
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
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

0
0
0
0
2
13
33
49
24
5
0
0
0
0
0
0
3
3
3
27
9
1
1
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

3
6
9
11
12
14
13
14
14
14
14
14
16
17
17
16
16
14
15
13
13
12
12
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
67
64
61
61
66
74
70
78
79
82
82
82
81
82
84
88
93
85
87
90
85
75
69

Pressure (mb)

1022
1022
1021
1020
1018
1017
1016
1015
1013
1012
1011
1010
1009
1008
1007
1005
1004
1004
1003
1003
1003
1004
1004
1005

Ozone (du)

352
352
352
350
349
347
345
344
345
348
349
349
347
346
346
348
351
353
352
353
351
351
351
354

Saturday 11

Waning Crescent 30%

04:36

12:24

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

Sun - Rise: 06:16, Set: 19:57, Transit: 13:08. Moon - Rise: 04:36, Set: 12:24. Civil Dark: 20:32 - 05:41. Nautical Dark: 21:15 - 04:57. Astro Dark: 22:03 - 04:09

Total Clouds (% Sky Obscured)

80
87
93
100
99
100
100
88
39
33
47
63
82
73
58
39
48
56
66
64
66
63
68
84

Low Clouds (% Sky Obscured)

9
6
3
0
3
10
20
19
26
33
35
34
36
37
35
35
42
47
53
54
62
63
63
70

Medium Clouds (% Sky Obscured)

0
17
30
45
45
44
99
78
23
9
6
2
0
0
0
0
3
4
5
7
6
2
18
36

High Clouds (% Sky Obscured)

70
80
90
100
61
32
2
3
6
8
34
59
80
50
27
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
7
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
1
13
6
19
21
32
23
22
23
20
19
0
0
0
0
0
1
1
8
10
4
5
5

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)

14
16
19
20
20
18
18
18
16
16
15
14
14
13
13
13
13
13
13
13
13
13
12
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

1
2
1
1
2
3
3
4
4
4
2
1
1
0
0
-1
-0
0
-0
1
1
2
2
4

Dew Point (°C)

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

Relative Humidity (%)

63
67
74
64
59
55
60
68
62
63
68
71
76
79
79
78
80
76
76
85
83
85
85
88

Pressure (mb)

1005
1005
1005
1005
1005
1006
1006
1006
1006
1006
1007
1007
1007
1008
1007
1007
1007
1007
1007
1007
1007
1007
1008
1008

Ozone (du)

358
359
361
366
373
379
385
389
392
392
406
410
410
410
414
419
420
421
424
425
430
434
439
441

Sunday 12

Waning Crescent 30%

04:51

13:43

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

Sun - Rise: 06:14, Set: 19:59, Transit: 13:07. Moon - Rise: 04:51, Set: 13:43. Civil Dark: 20:34 - 05:38. Nautical Dark: 21:17 - 04:55. Astro Dark: 22:06 - 04:06

Total Clouds (% Sky Obscured)

86
82
80
76
80
87
94
72
48
28
15
22
26
51
70
86
91
95
100
99
98
97
98
99

Low Clouds (% Sky Obscured)

65
56
50
46
47
51
55
46
38
28
15
22
26
25
12
0
7
14
21
37
57
71
79
83

Medium Clouds (% Sky Obscured)

51
50
42
34
45
48
55
37
17
0
0
0
0
14
29
46
46
45
41
50
62
69
59
44

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
15
30
45
60
75
85
51
18
2
23
54

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 (%)

10
6
12
6
21
25
24
27
19
10
20
13
0
0
0
0
0
0
0
5
8
10
22
32

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
14
14
13
13
14
14
14
13
13
12
10
8
6
5
5
5
5
6
6
7
7
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
73
72
68
64
58
57
63
61
68
73
79
83
88
86
85
83
86
88
91
91
91
91
85

Pressure (mb)

1009
1009
1010
1011
1011
1011
1011
1012
1012
1013
1013
1015
1015
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1014

Ozone (du)

445
450
451
454
456
454
453
454
455
456
456
455
454
453
454
454
454
453
452
452
455
459
463
456

Monday 13

Waning Crescent 20%

05:04

15:02

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
08 Bad

Sun - Rise: 06:11, Set: 20:00, Transit: 13:07. Moon - Rise: 05:04, Set: 15:02. Civil Dark: 20:36 - 05:36. Nautical Dark: 21:19 - 04:52. Astro Dark: 22:08 - 04:03

Total Clouds (% Sky Obscured)

100
100
100
96
95
91
95
86
80
73
74
75
60
52
41
49
54
58
62
64
64
57
47
45

Low Clouds (% Sky Obscured)

86
74
71
69
71
80
90
83
75
67
58
45
25
18
27
40
46
53
59
54
49
44
47
45

Medium Clouds (% Sky Obscured)

34
31
28
25
37
47
62
61
68
73
74
75
60
52
41
49
54
35
10
7
3
0
0
0

High Clouds (% Sky Obscured)

90
90
95
96
67
33
0
0
0
0
0
0
0
0
0
0
0
0
0
14
29
36
29
22

ISS Passover

Visibility (miles)

9
9
9
8
8
8
8
8
7
6
5
4
4
3
5
6
7
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

43
64
80
95
95
95
95
95
95
93
85
76
67
85
95
95
92
73
38
47
38
2
3
2

Precipitation Amount (mm)

0
0.3
0.4
0.6
0.9
1.1
1.2
1
0.8
0.7
0.5
0.4
0.3
0.6
0.9
1.2
0.8
0.4
0
0
0
0
0
0

Wind Speed/Direction (mph)

11
13
14
14
15
16
16
17
14
12
14
14
13
13
10
8
7
7
7
6
6
6
6
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
73
69
66
62
66
71
76
80
85
90
91
93
93
94
94
94
94
94
93
94
93
93
88

Pressure (mb)

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

Ozone (du)

449
442
436
430
424
421
417
414
414
413
413
409
406
402
402
402
402
401
399
398
397
395
394
390

Tuesday 14

Waning Crescent 12%

05:16

16:23

09 OK
10 OK
11 Bad
12 Bad
13 OK
14 OK
15 OK
16 OK
17 OK
18 Good
19 Good
20 Good
21 Good
22 OK
23 OK
00 Good

Sun - Rise: 06:09, Set: 20:02, Transit: 13:07. Moon - Rise: 05:16, Set: 16:23. Civil Dark: 20:37 - 05:34. Nautical Dark: 21:21 - 04:50. Astro Dark: 22:11 - 04:00

Total Clouds (% Sky Obscured)

40
42
44
49
29
20
14
13
9
11
9
10
12
11
9
8

Low Clouds (% Sky Obscured)

40
42
44
49
29
20
14
13
9
11
8
6
5
4
2
1

Medium Clouds (% Sky Obscured)

0
6
12
22
18
15
10
9
8
6
8
10
12
10
9
8

High Clouds (% Sky Obscured)

17
15
13
12
10
5
0
4
7
11
8
6
3
2
1
1

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

0
1
0
0
1
0
0
5
5
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
78
74
69
64
63
63
62
66
72
77
79
84
89
89
91

Pressure (mb)

1018
1019
1019
1019
1019
1020
1020
1020
1020
1021
1021
1022
1022
1023
1023
1024

Ozone (du)

386
383
378
373
368
366
364
362
361
360
359
358
356
355
354
354

Forecast for Swindon, Swindon, United Kingdom (51.56,-1.78)

Generated: 08/04/26 09:55:55. Forecast: 08/04/26 to 14/04/26. Timezone: UTC+1.00