Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 21

Waxing Crescent 31%

09:35

01:28

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 OK
18 OK
19 Good
20 Good
21 Good
22 Good
23 OK

Sun - Rise: 05:05, Set: 21:01, Transit: 13:03. Moon - Rise: 09:35, Set: 01:28. Civil Dark: 21:44 - 04:22. Nautical Dark: 22:45 - 03:21. Astro Dark: 00:33 - 01:20

Total Clouds (% Sky Obscured)

97
95
99
100
96
96
92
88
100
84
82
90
72
69
87
71
69
34
42
1
14
4
0
24

Low Clouds (% Sky Obscured)

51
51
50
77
76
75
85
79
81
84
80
84
58
53
44
38
0
0
4
0
0
0
0
0

Medium Clouds (% Sky Obscured)

3
9
45
31
40
66
38
27
9
1
4
10
31
27
60
41
57
28
21
1
11
2
0
12

High Clouds (% Sky Obscured)

83
95
99
100
87
65
62
26
61
38
55
58
55
55
60
61
50
8
42
1
8
4
0
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
1
1
0
0
0
2
17
22
9
18
5
5
4
1
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
6
6
7
7
8
8
9
10
10
11
11
10
10
9
9
9
9
9
8
6
5
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
96
95
96
95
96
95
93
92
90
85
81
79
78
75
74
71
73
76
80
87
90
92
92

Pressure (mb)

1024
1025
1025
1025
1025
1025
1025
1025
1026
1026
1026
1026
1026
1026
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025

Ozone (du)

339
340
340
339
338
338
338
337
337
336
338
338
338
337
336
335
334
331
331
333
335
337
340
344

Friday 22

Waxing Crescent 42%

11:03

01:52

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

Sun - Rise: 05:04, Set: 21:03, Transit: 13:03. Moon - Rise: 11:03, Set: 01:52. Civil Dark: 21:46 - 04:21. Nautical Dark: 22:47 - 03:19. Astro Dark: 00:47 - N/A

Total Clouds (% Sky Obscured)

17
0
31
100
100
49
54
33
43
95
84
100
100
100
97
33
28
30
56
99
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
9
21
29
32
15
0
0
0
0
0
0
0
0
5
27
36

Medium Clouds (% Sky Obscured)

8
0
17
0
0
0
0
0
0
0
0
0
0
0
0
0
4
14
33
52
50
50
37
50

High Clouds (% Sky Obscured)

17
0
0
64
90
49
54
33
43
91
74
86
50
53
66
31
20
9
33
92
94
92
88
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
6

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

Chance of Frost

Temperature (°C)

14
14
13
13
13
13
13
15
16
17
19
21
22
22
23
23
23
23
22
21
20
18
17
17

Feels Like (°C)

14
12
14
13
12
12
12
14
15
15
17
18
20
22
22
22
23
23
22
21
21
19
18
18

Dew Point (°C)

12
12
12
12
12
12
13
13
14
14
15
16
16
16
16
17
17
18
18
18
18
17
16
15

Relative Humidity (%)

90
92
93
93
95
95
95
92
86
81
77
73
70
68
66
66
67
72
75
80
86
90
90
89

Pressure (mb)

1025
1025
1025
1025
1024
1024
1024
1025
1025
1025
1025
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1025
1025
1025

Ozone (du)

346
347
349
347
346
346
345
346
346
345
344
343
344
345
343
341
340
340
339
338
338
338
339
338

Saturday 23

First Quarter 53%

12:26

02:09

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

Sun - Rise: 05:03, Set: 21:04, Transit: 13:03. Moon - Rise: 12:26, Set: 02:09. Civil Dark: 21:48 - 04:19. Nautical Dark: 22:50 - 03:17. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
87
71
51
22
58
73
64
59
37
37
72
69
62
50
48
38
41
52
52
50
49

Low Clouds (% Sky Obscured)

0
31
27
24
29
24
15
32
36
20
35
35
33
37
26
22
20
20
2
2
1
0
0
0

Medium Clouds (% Sky Obscured)

73
82
83
87
71
51
22
58
73
64
48
5
4
72
67
3
3
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
29
15
15
2
0
0
0
0
0
0
1
15
15
17
12
38
39
48
45
34
23

ISS Passover

Visibility (miles)

9
9
3
3
9
2
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

13
33
95
76
94
95
92
54
30
1
0
0
0
0
0
0
0
0
1
0
1
0
0
0

Precipitation Amount (mm)

0
0
1.2
0.4
0.9
1.3
0.8
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
16
15
15
14
14
14
15
16
18
19
20
21
22
22
22
23
22
22
21
19
17
16
15

Feels Like (°C)

15
15
14
14
15
13
14
16
17
19
20
22
23
24
23
23
23
23
22
24
21
17
16
15

Dew Point (°C)

14
14
13
14
13
13
13
14
14
16
16
16
16
17
17
17
17
17
17
18
17
15
14
13

Relative Humidity (%)

86
85
85
95
93
95
96
93
89
88
82
77
74
72
69
69
68
69
74
81
85
88
87
87

Pressure (mb)

1025
1025
1025
1025
1025
1026
1026
1027
1027
1027
1028
1028
1028
1028
1028
1028
1028
1028
1028
1029
1029
1030
1030
1030

Ozone (du)

338
340
341
340
346
355
357
350
346
342
339
338
337
335
332
330
329
329
329
328
328
327
325
323

Sunday 24

Waxing Gibbous 64%

13:44

02:22

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

Sun - Rise: 05:02, Set: 21:05, Transit: 13:03. Moon - Rise: 13:44, Set: 02:22. Civil Dark: 21:49 - 04:18. Nautical Dark: 22:52 - 03:15. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

39
9
9
4
3
5
8
18
20
24
22
19
19
15
10
1
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
2
3
5
3
2
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)

20
4
3
1
1
2
5
14
20
24
22
19
19
15
8
1
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)

2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
3
4
3

Chance of Frost

Temperature (°C)

14
14
13
13
12
12
13
13
15
17
19
20
22
23
23
24
24
24
24
23
21
19
18
17

Feels Like (°C)

15
13
15
14
14
14
14
15
17
19
22
23
24
26
26
27
28
27
27
27
25
22
20
19

Dew Point (°C)

13
12
12
11
11
11
12
12
13
14
16
16
16
17
16
16
16
16
17
19
17
16
16
16

Relative Humidity (%)

89
89
90
90
93
93
95
93
87
82
80
75
70
67
63
62
60
61
64
77
77
82
89
93

Pressure (mb)

1030
1030
1030
1030
1031
1031
1031
1031
1032
1032
1032
1032
1032
1032
1031
1031
1031
1031
1031
1031
1031
1031
1032
1032

Ozone (du)

322
321
319
319
319
320
322
321
321
320
321
321
321
320
320
319
320
320
318
316
315
315
316
317

Monday 25

Waxing Gibbous 74%

14:59

02:34

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 OK
14 OK
15 OK
16 OK
17 OK
18 OK
19 Good
20 Good
21 Good
22 Good
23 Good

Sun - Rise: 05:01, Set: 21:07, Transit: 13:04. Moon - Rise: 14:59, Set: 02:34. Civil Dark: 21:51 - 04:16. Nautical Dark: 22:54 - 03:13. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

1
0
0
1
0
0
0
0
0
0
6
12
18
21
24
26
24
21
19
12
6
0
0
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
6
12
18
21
24
24
24
21
19
12
6
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
1
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
1
0
0
2
1
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)

3
3
2
2
2
2
2
2
2
3
4
4
4
4
4
4
3
3
3
3
3
3
3
3

Chance of Frost

Temperature (°C)

16
16
15
15
14
14
15
15
17
19
21
22
23
24
24
25
25
25
24
24
23
21
19
18

Feels Like (°C)

18
17
17
17
16
16
16
17
19
21
23
24
25
26
26
26
26
27
27
27
26
26
25
24

Dew Point (°C)

16
15
14
14
13
13
12
12
13
14
15
15
16
16
16
17
17
18
19
20
19
17
16
15

Relative Humidity (%)

96
95
93
92
90
90
86
82
76
72
69
65
63
61
60
60
59
65
70
77
78
81
82
83

Pressure (mb)

1032
1032
1032
1032
1031
1032
1032
1032
1032
1032
1032
1032
1032
1032
1031
1031
1031
1031
1030
1030
1030
1031
1031
1031

Ozone (du)

317
316
315
316
317
317
316
316
315
315
314
312
312
310
310
310
310
309
309
308
310
311
313
314

Tuesday 26

Waxing Gibbous 82%

16:13

02:45

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
23 Good

Sun - Rise: 04:59, Set: 21:08, Transit: 13:04. Moon - Rise: 16:13, Set: 02:45. Civil Dark: 21:52 - 04:15. Nautical Dark: 22:56 - 03:11. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
2
6
9
10
13
14
11
6
2
1
1

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
2
6
9
8
4
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
5
11
13
9
5
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
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)

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

Chance of Frost

Temperature (°C)

17
17
16
16
16
16
17
17
19
21
23
24
25
26
27
27
27
27
26
26
24
22
20
18

Feels Like (°C)

23
22
18
18
19
18
18
17
20
21
22
23
24
25
28
28
27
27
28
29
25
25
25
23

Dew Point (°C)

15
14
14
14
14
14
15
15
16
16
17
17
17
16
17
17
18
19
20
21
20
19
18
15

Relative Humidity (%)

85
86
87
86
87
87
87
86
80
75
71
65
61
55
55
56
56
61
68
75
79
83
86
81

Pressure (mb)

1031
1031
1031
1031
1031
1031
1031
1031
1031
1031
1031
1030
1030
1030
1030
1029
1029
1028
1028
1028
1028
1028
1028
1028

Ozone (du)

316
317
318
320
321
321
322
322
322
323
323
322
322
321
322
323
324
325
325
326
327
327
328
330

Wednesday 27

Waxing Gibbous 89%

17:27

02:56

Sun - Rise: 04:58, Set: 21:09, Transit: 13:04. Moon - Rise: 17:27, Set: 02:56. Civil Dark: 21:54 - 04:14. Nautical Dark: 22:58 - 03:09. Astro Dark: N/A - N/A

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 Stratton Saint Margaret, Swindon, United Kingdom (51.57,-1.76)

Generated: 21/05/26 00:25:33. Forecast: 21/05/26 to 27/05/26. Timezone: UTC+1.00