Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 8

Waning Gibbous 59%

03:16

09:59

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

Sun - Rise: 06:22, Set: 19:52, Transit: 13:08. Moon - Rise: 03:16, Set: 09:59. Civil Dark: 20:27 - 05:48. Nautical Dark: 21:09 - 05:05. Astro Dark: 21:56 - 04:18

Total Clouds (% Sky Obscured)

1
1
0
0
0
0
0
0
0
32
97
100
100
100
100
100
100
100
100
100
100
100
89
71

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
26
42
78
87
83
62
34
40
0
0
0
100
94
73
68

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
14
15
91
91
99
99
74
100
100
89
8

High Clouds (% Sky Obscured)

1
1
0
0
0
0
0
0
0
32
96
100
100
100
100
100
100
100
100
100
75
74
71
71

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
2
100
34
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
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
7
11
27
20
17

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

Chance of Frost

Temperature (°C)

22
20
17
15
14
12
12
11
11
11
10
10
9
9
10
10
12
13
14
14
13
12
11
11

Feels Like (°C)

23
21
18
17
14
12
12
11
11
10
9
8
7
7
7
7
8
9
9
9
9
7
6
7

Dew Point (°C)

18
18
15
14
12
10
10
10
10
10
9
9
9
8
8
7
8
8
9
11
11
8
7
7

Relative Humidity (%)

80
86
89
93
92
87
89
92
91
95
95
95
95
95
90
81
77
70
74
82
84
76
78
77

Pressure (mb)

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

Ozone (du)

352
355
358
358
359
358
357
355
353
352
352
351
354
358
359
358
360
362
365
367
369
368
370
374

Thursday 9

Waning Gibbous 50%

03:51

11:09

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

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

Total Clouds (% Sky Obscured)

52
39
58
100
13
48
100
100
100
100
100
100
98
72
44
100
100
100
100
100
99
100
100
100

Low Clouds (% Sky Obscured)

52
39
11
0
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
0
0
40

Medium Clouds (% Sky Obscured)

3
2
0
9
0
20
59
98
100
100
100
100
98
72
44
87
97
100
100
100
97
100
100
100

High Clouds (% Sky Obscured)

52
39
58
100
13
48
100
100
100
100
100
59
66
72
44
100
100
100
91
99
88
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
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 (%)

18
10
0
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
6
6
11

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)

17
16
14
10
9
9
8
8
7
7
6
5
4
3
1
4
5
7
9
10
12
12
10
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
78
80
77
76
80
80
75
73
72
75
75
75
77
73
68
63
61
59
61
61
66
64
72

Pressure (mb)

1019
1020
1021
1022
1023
1023
1024
1024
1024
1023
1023
1023
1023
1022
1022
1022
1022
1021
1020
1019
1019
1018
1016
1015

Ozone (du)

376
379
378
381
379
374
370
366
363
359
357
357
357
357
357
355
352
351
350
349
349
349
348
348

Friday 10

Third Quarter 39%

04:17

12:24

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: 06:18, Set: 19:55, Transit: 13:08. Moon - Rise: 04:17, Set: 12:24. 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
100
100
100
100
93
69
78
84
100
100
100

Low Clouds (% Sky Obscured)

61
0
0
0
0
0
7
50
71
83
94
91
100
94
90
83
74
35
43
37
32
50
41
27

Medium Clouds (% Sky Obscured)

99
87
35
64
17
19
16
19
14
15
15
13
18
43
99
81
27
22
0
12
20
100
100
100

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
19
26
51
70
99
100
91

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
9
9
9
9
9
9
9
6
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
Very Light Rain
None
None
None
None
None
None
None
Very Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

19
18
5
0
0
0
0
0
1
3
25
48
45
51
40
8
14
0
0
1
22
47
63
51

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0.2
0.4
0.2

Wind Speed/Direction (mph)

12
11
13
15
16
17
19
19
19
17
16
14
14
11
11
10
13
14
13
13
14
15
17
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
84
88
91
88
85
84
84
85
91
91
95
91
91
91
90
84
73
60
53
52
54
63
75

Pressure (mb)

1014
1013
1012
1011
1009
1008
1007
1005
1004
1003
1003
1002
1002
1003
1003
1004
1004
1005
1005
1005
1005
1005
1005
1005

Ozone (du)

348
351
353
353
350
350
349
349
350
349
347
346
347
348
351
354
358
361
364
369
373
377
383
388

Saturday 11

Waning Crescent 30%

04:36

13:43

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: 06:16, Set: 19:57, Transit: 13:07. Moon - Rise: 04:36, Set: 13:43. Civil Dark: 20:32 - 05:41. Nautical Dark: 21:15 - 04:57. Astro Dark: 22:03 - 04:09

Total Clouds (% Sky Obscured)

96
60
65
76
77
78
77
67
62
56
64
71
80
46
66
59
59
67
77
80
81
82
74
69

Low Clouds (% Sky Obscured)

2
7
14
21
30
37
44
56
62
56
64
67
72
46
65
59
52
54
62
68
68
67
58
55

Medium Clouds (% Sky Obscured)

76
30
15
0
0
0
0
8
16
20
19
9
0
0
0
0
16
30
45
32
17
12
14
21

High Clouds (% Sky Obscured)

94
60
65
76
77
78
77
58
31
0
0
0
0
0
0
0
1
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
8
9
9
4
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
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

5
0
0
0
1
1
0
0
1
2
7
10
7
10
23
23
15
27
27
38
48
55
52
50

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

16
15
14
13
14
15
16
16
17
17
18
18
19
18
18
19
20
20
20
20
20
19
20
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
2
3
2
1
0
1
2
1
1
1
1
1
2
4
4
5
5
6
6
5
5
5
5

Dew Point (°C)

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

Relative Humidity (%)

79
79
82
82
82
82
85
85
82
78
79
84
81
79
87
85
80
69
68
68
67
68
66
73

Pressure (mb)

1006
1006
1006
1006
1006
1005
1005
1005
1004
1004
1004
1004
1004
1004
1005
1005
1006
1006
1006
1007
1007
1008
1008
1009

Ozone (du)

392
398
408
415
421
426
426
429
431
438
446
455
464
471
474
475
476
476
476
479
484
483
477
472

Sunday 12

Waning Crescent 20%

04:51

15:02

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: 06:14, Set: 19:59, Transit: 13:07. Moon - Rise: 04:51, Set: 15:02. Civil Dark: 20:34 - 05:38. Nautical Dark: 21:17 - 04:55. Astro Dark: 22:06 - 04:06

Total Clouds (% Sky Obscured)

62
60
55
48
57
62
67
58
48
39
42
41
42
68
83
89
89
95
100
100
99
99
99
100

Low Clouds (% Sky Obscured)

51
52
49
48
47
44
38
40
40
39
37
35
33
33
40
46
61
75
90
93
96
99
93
89

Medium Clouds (% Sky Obscured)

21
19
10
2
14
23
34
24
12
2
7
11
23
51
74
89
86
75
66
65
61
56
64
73

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
1
0
0
5
4
0
0
0
0
15
31
44
31
31

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
8
9
9
7

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

Precipitation Probability (%)

51
43
34
10
9
6
0
0
0
0
0
0
0
4
5
6
13
20
28
49
61
70
67
66

Precipitation Amount (mm)

0.3
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.4
0.3
0.3

Wind Speed/Direction (mph)

17
15
13
10
9
8
8
8
7
7
6
5
5
5
5
6
7
7
8
9
9
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
82
88
93
94
94
94
93
93
91
91
89
88
89
82
76
70
65
61
58
63
69
77
81

Pressure (mb)

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

Ozone (du)

471
468
467
465
464
463
461
460
458
460
461
460
459
459
458
458
458
457
455
454
450
447
443
436

Monday 13

Waning Crescent 12%

05:04

16:23

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: 06:11, Set: 20:00, Transit: 13:07. Moon - Rise: 05:04, Set: 16:23. 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
100
100
100
99
96
85
78
63
52
44
45
52
64
64
51
41
44
47
48
33
21

Low Clouds (% Sky Obscured)

82
85
88
93
93
92
89
76
65
54
50
46
40
45
52
64
55
42
30
20
10
0
0
0

Medium Clouds (% Sky Obscured)

79
84
90
97
84
71
57
47
37
40
18
12
4
2
1
0
0
0
0
2
4
6
4
2

High Clouds (% Sky Obscured)

33
23
13
7
4
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

70
95
95
95
95
95
95
87
73
56
48
37
15
20
19
17
22
27
32
33
36
39
33
29

Precipitation Amount (mm)

0.3
0.8
1.3
2
1.5
1.1
0.8
0.6
0.4
0.3
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
7
3
3
3
3
3
3
0
0
0
0
0
0
1
1
1
1
2
2
2
2
3
3

Dew Point (°C)

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

Relative Humidity (%)

85
90
91
93
96
96
96
94
96
94
96
96
96
94
93
90
85
87
88
90
88
85
84
82

Pressure (mb)

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

Ozone (du)

430
423
423
423
423
426
429
431
431
431
431
431
430
430
424
418
412
409
406
403
397
392
386
382

Tuesday 14

Waning Crescent 6%

05:16

17:45

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

Sun - Rise: 06:09, Set: 20:02, Transit: 13:07. Moon - Rise: 05:16, Set: 17:45. Civil Dark: 20:37 - 05:34. Nautical Dark: 21:21 - 04:50. Astro Dark: 22:11 - 04:00

Total Clouds (% Sky Obscured)

12
20
24
32
37
43
45
57
49
33
54
76
98
99
99
99
99
98
98

Low Clouds (% Sky Obscured)

0
3
7
8
12
13
13
34
49
33
54
76
94
97
99
99
98
96
94

Medium Clouds (% Sky Obscured)

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
1
2

ISS Passover

Visibility (miles)

8
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

Precipitation Type

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

Precipitation Probability (%)

26
26
20
1
3
3
0
0
0
0
0
0
0
0
0
0
4
3
2

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
84
85
87
88
88
88
91
93
94
98
91
86
80
81
79
79
79
81

Pressure (mb)

1021
1021
1022
1023
1024
1024
1025
1025
1026
1026
1026
1026
1026
1026
1027
1027
1027
1027
1026

Ozone (du)

379
375
373
371
368
367
366
365
364
362
361
359
357
355
354
352
350
349
347

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

Generated: 08/04/26 18:59:27. Forecast: 08/04/26 to 14/04/26. Timezone: UTC+1.00