Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 7

Waning Gibbous 77%

01:30

08:13

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 Good
15 Good
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Good

Sun - Rise: 06:27, Set: 19:50, Transit: 13:09. Moon - Rise: 01:30, Set: 08:13. Civil Dark: 20:25 - 05:52. Nautical Dark: 21:07 - 05:10. Astro Dark: 21:53 - 04:24

Total Clouds (% Sky Obscured)

0
3
0
0
0
0
4
0
0
17
34
51
49
39
9
13
100
92
77
96
95
85
70
8

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
11
27
41
42
30
0
5
0
7
59
70
62
47
59
8

High Clouds (% Sky Obscured)

0
3
0
0
0
0
4
0
0
7
3
4
10
39
9
13
100
35
26
8
4
7
4
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 (%)

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)

6
6
6
6
7
7
7
7
9
11
14
15
15
15
16
16
15
14
12
11
11
10
9
7

Chance of Frost

Temperature (°C)

7
7
6
6
5
5
5
5
7
8
11
13
15
17
18
19
18
18
17
16
14
13
13
13

Feels Like (°C)

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

Dew Point (°C)

2
3
3
3
3
3
3
3
3
4
5
7
8
9
11
12
12
12
12
12
11
11
10
10

Relative Humidity (%)

74
76
79
82
83
83
83
83
76
73
68
64
61
61
62
64
68
69
72
77
83
86
83
83

Pressure (mb)

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

Ozone (du)

363
360
359
360
361
361
359
359
357
356
355
352
349
347
346
345
346
347
346
346
346
348
350
349

Wednesday 8

Waning Gibbous 69%

02:29

09:00

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

Sun - Rise: 06:25, Set: 19:52, Transit: 13:08. Moon - Rise: 02:29, Set: 09:00. Civil Dark: 20:27 - 05:50. Nautical Dark: 21:09 - 05:08. Astro Dark: 21:56 - 04:21

Total Clouds (% Sky Obscured)

21
100
24
100
88
96
100
60
0
0
5
25
25
16
46
41
26
0
0
0
24
34
17
14

Low Clouds (% Sky Obscured)

0
0
0
0
4
16
20
5
0
0
5
22
25
16
46
41
26
0
0
0
24
34
17
14

Medium Clouds (% Sky Obscured)

5
2
4
2
0
4
4
2
0
0
4
2
2
2
2
2
0
0
0
0
2
2
3
3

High Clouds (% Sky Obscured)

13
64
22
48
61
76
73
42
0
0
5
25
25
9
3
6
4
0
0
0
1
1
1
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
Very Light Rain
Light Rain
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
54
49
3
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

12
12
12
11
10
10
9
9
11
14
15
17
18
19
20
20
20
19
19
18
16
14
13
12

Feels Like (°C)

12
11
11
11
10
9
8
10
11
14
15
16
18
19
21
21
21
20
20
19
17
16
15
13

Dew Point (°C)

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

Relative Humidity (%)

84
83
84
87
88
90
90
90
87
82
79
78
77
75
71
70
70
71
80
86
90
90
92
92

Pressure (mb)

1022
1022
1022
1022
1022
1023
1023
1023
1023
1024
1024
1024
1024
1023
1023
1023
1023
1022
1022
1022
1022
1023
1023
1022

Ozone (du)

349
351
351
351
350
350
349
349
347
346
345
343
343
345
346
345
345
346
347
348
349
351
354
354

Thursday 9

Waning Gibbous 59%

03:16

09:59

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 OK
19 OK
20 OK
21 OK
22 OK
23 OK

Sun - Rise: 06:22, Set: 19:54, Transit: 13:08. Moon - Rise: 03:16, Set: 09:59. Civil Dark: 20:28 - 05:48. Nautical Dark: 21:11 - 05:05. Astro Dark: 21:58 - 04:18

Total Clouds (% Sky Obscured)

39
90
100
100
100
100
100
100
100
95
100
100
69
79
84
75
69
58
33
26
28
30
35
40

Low Clouds (% Sky Obscured)

39
76
88
97
75
73
63
55
53
49
52
55
59
70
83
37
35
29
9
8
2
0
0
0

Medium Clouds (% Sky Obscured)

3
3
6
14
23
6
20
20
5
95
69
15
20
0
6
63
3
0
3
8
4
30
3
40

High Clouds (% Sky Obscured)

1
70
90
95
98
100
100
100
100
38
100
100
1
15
15
15
15
10
15
15
20
20
15
10

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
2
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
21
5
0
0
0
0
0
0
2
6
13
2
0
0
2
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)

5
5
6
6
7
7
7
6
9
12
14
15
17
17
17
18
17
16
14
13
12
9
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
12
10
11
9
8
8
7
7
7
6
7
6
6
7
7
6
6
6
5
3
2
2
2

Dew Point (°C)

11
10
10
9
9
9
9
9
9
9
9
8
8
7
9
5
5
5
4
4
2
1
0
0

Relative Humidity (%)

93
93
93
91
93
93
95
96
95
93
87
79
80
77
81
64
66
67
68
72
68
67
70
72

Pressure (mb)

1022
1022
1022
1021
1021
1020
1020
1019
1019
1019
1020
1020
1020
1020
1020
1020
1021
1022
1022
1023
1024
1025
1025
1025

Ozone (du)

353
349
350
349
350
351
351
351
352
351
350
357
365
366
368
365
363
361
363
360
357
355
354
353

Friday 10

Third Quarter 50%

03:51

11:09

00 OK
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
23 Bad

Sun - Rise: 06:20, Set: 19:55, Transit: 13:08. Moon - Rise: 03:51, Set: 11:09. Civil Dark: 20:30 - 05:45. Nautical Dark: 21:13 - 05:02. Astro Dark: 22:01 - 04:15

Total Clouds (% Sky Obscured)

35
54
66
79
84
90
95
97
99
98
100
100
100
100
100
100
90
79
65
72
80
87
85
88

Low Clouds (% Sky Obscured)

0
0
0
2
0
0
0
33
64
96
73
48
11
13
14
18
21
23
26
26
25
24
43
68

Medium Clouds (% Sky Obscured)

35
45
57
79
84
90
95
85
49
50
64
100
98
88
79
65
34
36
37
35
26
25
30
49

High Clouds (% Sky Obscured)

15
10
10
10
22
40
52
71
85
98
100
100
98
100
100
100
75
47
2
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
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
7
21
37
46
48
44
21
8
0
0
2
0
0
0
0
4
8

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

4
4
3
4
4
4
4
4
5
6
7
9
12
14
15
16
17
16
16
15
14
14
12
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

0
0
0
-1
-1
-1
-1
-1
1
2
3
3
3
3
3
4
5
5
5
5
5
5
4
5

Relative Humidity (%)

72
73
73
72
67
66
67
68
72
74
74
71
67
66
64
65
67
69
72
75
85
85
84
85

Pressure (mb)

1025
1025
1025
1024
1024
1024
1023
1023
1023
1023
1023
1022
1021
1020
1018
1017
1016
1015
1015
1014
1014
1013
1013
1012

Ozone (du)

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

Saturday 11

Waning Crescent 39%

04:17

12:24

00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 OK
06 Good
07 OK
08 OK
09 OK
10 OK
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

Sun - Rise: 06:18, Set: 19:57, Transit: 13:08. Moon - Rise: 04:17, Set: 12:24. Civil Dark: 20:32 - 05:43. Nautical Dark: 21:15 - 05:00. Astro Dark: 22:03 - 04:12

Total Clouds (% Sky Obscured)

85
86
86
83
62
33
2
13
21
29
36
50
60
71
83
96
76
55
34
26
16
10
35
55

Low Clouds (% Sky Obscured)

85
86
82
81
57
30
0
8
17
25
36
47
58
52
46
43
38
36
34
23
11
0
20
40

Medium Clouds (% Sky Obscured)

50
60
58
47
35
32
2
4
21
29
35
40
34
62
79
91
76
55
34
26
16
10
35
55

High Clouds (% Sky Obscured)

0
2
2
3
10
2
2
13
21
25
20
20
20
25
25
35
50
55
34
26
16
10
30
20

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
5
3
3
3
3
2
1
0
3

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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

10
17
21
21
22
11
0
0
0
1
2
0
1
17
31
42
49
49
48
86
95
95
95
84

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.6
1.1
1.5
1.1
0.6

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

7
7
7
8
8
7
6
6
7
9
10
11
12
13
11
10
8
7
7
7
6
5
4
4

Feels Like (°C)

6
7
6
6
6
5
4
3
4
5
6
8
9
10
10
11
11
10
10
9
2
2
1
-0

Dew Point (°C)

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

Relative Humidity (%)

91
93
93
95
95
94
94
93
88
87
84
84
80
76
83
88
95
94
96
96
98
98
98
96

Pressure (mb)

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

Ozone (du)

350
351
351
350
350
350
354
357
357
357
356
356
355
352
352
351
351
353
356
359
362
365
369
370

Sunday 12

Waning Crescent 30%

04:36

13:43

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 OK
21 Good
22 OK
23 Bad

Sun - Rise: 06:16, Set: 19:59, Transit: 13:07. Moon - Rise: 04:36, Set: 13:43. Civil Dark: 20:34 - 05:41. Nautical Dark: 21:17 - 04:57. Astro Dark: 22:06 - 04:09

Total Clouds (% Sky Obscured)

72
70
68
66
62
59
59
61
62
64
70
76
77
82
77
79
73
63
56
41
28
10
37
68

Low Clouds (% Sky Obscured)

63
63
64
64
61
59
56
54
52
50
40
35
30
24
17
9
18
28
36
24
12
0
2
4

Medium Clouds (% Sky Obscured)

72
70
68
66
62
59
59
61
62
64
70
76
77
82
77
75
73
63
56
41
28
10
37
68

High Clouds (% Sky Obscured)

19
15
10
10
10
10
10
10
5
10
10
5
5
5
5
5
10
10
25
30
28
10
37
68

ISS Passover

Visibility (miles)

6
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 (%)

17
13
8
0
6
5
0
7
8
4
7
6
3
10
12
14
15
14
8
12
11
0
1
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)

9
9
9
10
11
11
10
10
11
13
14
14
14
15
14
14
14
12
10
9
7
5
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
98
94
94
91
91
91
91
86
82
79
75
72
68
67
65
64
67
72
77
78
78
79
77

Pressure (mb)

1011
1011
1011
1011
1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014

Ozone (du)

371
372
373
375
376
376
376
376
371
367
362
362
362
362
363
364
365
366
366
366
368
369
371
371

Monday 13

Waning Crescent 20%

04:51

15:02

Sun - Rise: 06:14, Set: 20:00, Transit: 13:07. Moon - Rise: 04:51, Set: 15:02. Civil Dark: 20:36 - 05:38. Nautical Dark: 21:19 - 04:55. Astro Dark: 22:08 - 04:06

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 07/04/26 00:12:55. Forecast: 07/04/26 to 13/04/26. Timezone: UTC+1.00