Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 22

Waxing Gibbous 75%

17:56

00:20

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

Sun - Rise: 06:10, Set: 20:23, Transit: 13:17. Moon - Rise: 17:56, Set: 00:20. Civil Dark: 21:00 - 05:33. Nautical Dark: 21:47 - 04:46. Astro Dark: 22:41 - 03:55

Total Clouds (% Sky Obscured)

7
15
21
27
1
4
8
6
36
54
60
94
80
74
50
30
36
33
29
25
33
42
54
55

Low Clouds (% Sky Obscured)

7
15
21
27
1
3
8
6
36
23
25
34
30
53
30
30
28
22
23
20
31
40
54
55

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
33
30
27
46
35
23
15
3
17
19
15
5
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
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)

3
3
3
2
1
1
0
1
2
3
4
6
9
9
10
9
5
3
2
3
3
2
2
3

Chance of Frost

Temperature (°C)

4
4
4
5
8
12
14
16
18
19
19
19
19
18
17
16
15
12
11
10
9
8
8
7

Feels Like (°C)

4
5
5
6
10
13
16
18
18
19
18
17
14
15
14
13
13
12
12
11
9
9
8
8

Dew Point (°C)

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

Relative Humidity (%)

91
93
91
91
84
76
64
52
43
40
37
37
47
52
50
50
59
77
83
87
88
90
88
88

Pressure (mb)

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

Ozone (du)

357
357
356
356
357
357
358
359
361
363
364
365
364
364
364
365
365
363
359
358
357
358
358
358

Sunday 23

Waxing Gibbous 83%

18:38

01:24

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

Sun - Rise: 06:11, Set: 20:21, Transit: 13:16. Moon - Rise: 18:38, Set: 01:24. Civil Dark: 20:58 - 05:35. Nautical Dark: 21:44 - 04:48. Astro Dark: 22:38 - 03:58

Total Clouds (% Sky Obscured)

52
49
45
32
0
0
5
16
34
36
48
44
40
34
35
60
45
32
23
27
15
1
22
28

Low Clouds (% Sky Obscured)

52
49
45
32
0
0
5
16
34
5
6
0
0
0
2
5
6
0
16
3
0
0
5
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
28
37
36
30
19
16
23
14
15
9
13
5
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
1
0
1
0
4
1
22
20

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

Chance of Frost

Temperature (°C)

7
6
6
6
9
12
15
18
19
20
21
22
22
22
21
20
18
15
14
13
12
11
10
9

Feels Like (°C)

7
7
7
7
10
13
16
19
20
21
22
22
23
22
22
20
17
14
13
12
11
11
9
8

Dew Point (°C)

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

Relative Humidity (%)

88
87
88
87
77
66
55
48
41
36
32
30
29
29
30
40
54
65
69
69
73
78
78
80

Pressure (mb)

1026
1027
1027
1027
1027
1027
1026
1026
1026
1025
1025
1024
1024
1023
1023
1023
1023
1024
1024
1024
1024
1024
1024
1024

Ozone (du)

355
350
348
347
346
345
344
343
343
342
343
342
341
341
340
339
339
339
339
340
342
343
342
340

Monday 24

Waxing Gibbous 90%

19:08

02:36

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
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 06:13, Set: 20:19, Transit: 13:16. Moon - Rise: 19:08, Set: 02:36. Civil Dark: 20:56 - 05:36. Nautical Dark: 21:42 - 04:50. Astro Dark: 22:34 - N/A

Total Clouds (% Sky Obscured)

85
95
95
64
82
88
97
95
92
100
98
100
100
98
95
93
100
99
98
100
60
66
74
81

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
19
26
19
22
29
20
11
34
15
4
9
0
0
0
4
37
57
70

Medium Clouds (% Sky Obscured)

0
0
0
0
26
17
31
26
31
41
81
100
94
92
52
49
90
92
77
70
60
66
70
75

High Clouds (% Sky Obscured)

85
85
90
58
57
77
89
76
57
100
90
100
74
55
63
64
64
96
94
100
47
36
32
30

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
3
12
9
5
1
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
1
0
1
2
1
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
3
3
3
5
12
16
17
17
16
16
15
14
14
13
11
10
12
12
12
12
11
10

Chance of Frost

Temperature (°C)

8
8
7
8
11
15
17
18
19
20
20
21
21
21
21
20
19
18
17
15
15
14
14
13

Feels Like (°C)

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

Dew Point (°C)

5
5
5
5
6
7
9
8
7
5
3
3
3
3
3
4
5
6
10
12
12
11
11
11

Relative Humidity (%)

82
84
84
82
68
61
59
53
46
38
32
30
30
29
31
34
40
47
63
78
82
79
80
84

Pressure (mb)

1023
1023
1023
1023
1022
1022
1021
1021
1020
1019
1019
1018
1017
1016
1016
1015
1015
1015
1016
1016
1016
1016
1015
1015

Ozone (du)

339
336
333
331
327
322
320
319
319
319
318
319
321
321
321
320
321
321
322
323
325
324
323
323

Tuesday 25

Waxing Gibbous 95%

19:30

03:53

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
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 06:15, Set: 20:17, Transit: 13:16. Moon - Rise: 19:30, Set: 03:53. Civil Dark: 20:53 - 05:38. Nautical Dark: 21:39 - 04:53. Astro Dark: 22:31 - 04:00

Total Clouds (% Sky Obscured)

86
91
95
97
98
99
100
100
100
99
97
95
83
96
97
89
86
90
93
84
78
90
95
100

Low Clouds (% Sky Obscured)

67
77
83
79
75
69
65
60
55
51
61
62
62
73
71
63
54
52
51
43
36
38
44
51

Medium Clouds (% Sky Obscured)

81
87
74
94
94
99
99
100
100
98
94
87
44
91
90
57
21
17
19
17
17
37
75
63

High Clouds (% Sky Obscured)

30
35
40
50
54
65
77
88
100
94
90
72
20
21
32
39
58
72
75
51
34
64
83
100

ISS Passover

Visibility (miles)

6
5
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 (%)

1
3
5
20
17
20
17
16
17
19
24
25
28
29
18
26
26
23
30
31
27
28
22
2

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
12
12
13
14
14
16
16
16
15
14
14
13
9
7
6
5
5
4
4
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
95
95
93
86
82
80
63
52
44
38
36
33
34
39
41
43
53
69
78
83
86
90
89

Pressure (mb)

1014
1014
1014
1013
1013
1013
1013
1012
1012
1012
1011
1011
1010
1010
1010
1010
1010
1010
1010
1011
1011
1010
1010
1010

Ozone (du)

323
324
322
322
322
323
326
328
329
329
326
326
326
324
320
318
317
317
317
317
315
315
316
318

Wednesday 26

Waxing Gibbous 99%

19:46

03:53

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
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 06:16, Set: 20:15, Transit: 13:15. Moon - Rise: 19:46, Set: 03:53. Civil Dark: 20:51 - 05:40. Nautical Dark: 21:36 - 04:55. Astro Dark: 22:28 - 04:03

Total Clouds (% Sky Obscured)

95
90
85
90
95
100
95
90
85
85
84
83
72
65
51
74
87
100
100
100
100
96
92
86

Low Clouds (% Sky Obscured)

60
85
84
81
77
69
62
64
60
49
41
36
22
11
0
42
51
59
60
61
62
70
78
85

Medium Clouds (% Sky Obscured)

68
70
70
70
62
52
30
14
17
19
16
17
16
13
14
28
51
76
77
83
88
66
43
20

High Clouds (% Sky Obscured)

81
64
51
66
84
100
89
78
66
66
65
64
50
50
50
39
40
38
59
77
92
88
83
78

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

8
26
42
67
48
12
5
12
35
55
80
92
95
95
95
86
71
50
42
32
13
45
55
57

Precipitation Amount (mm)

0
0
0
0.5
0
0
0
0
0
0
0.4
0.4
0.7
0.7
0.6
0.5
0.3
0
0
0
0
0
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
87
89
95
95
86
78
67
66
76
85
87
85
86
91
92
93
95
96
96
98
98
98

Pressure (mb)

1010
1010
1010
1010
1010
1010
1010
1010
1009
1009
1009
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008

Ozone (du)

320
319
320
322
322
322
323
325
326
328
327
328
326
326
325
327
330
334
337
337
337
336
338
339

Thursday 27

Waxing Gibbous 100%

19:59

05:11

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
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 06:18, Set: 20:12, Transit: 13:15. Moon - Rise: 19:59, Set: 05:11. Civil Dark: 20:49 - 05:42. Nautical Dark: 21:34 - 04:57. Astro Dark: 22:25 - 04:06

Total Clouds (% Sky Obscured)

87
88
91
92
92
93
91
87
82
80
78
77
83
90
96
91
90
84
79
73
67
71
72
74

Low Clouds (% Sky Obscured)

83
80
78
77
76
75
69
62
57
53
51
49
32
16
0
1
0
0
4
9
14
24
35
44

Medium Clouds (% Sky Obscured)

16
9
4
10
17
25
35
45
53
42
31
20
14
8
3
5
6
8
9
12
14
14
14
14

High Clouds (% Sky Obscured)

78
80
82
59
31
9
27
41
51
57
58
53
58
69
81
75
74
68
58
47
40
35
29
26

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

57
53
32
31
27
19
26
31
37
52
63
72
67
59
45
51
46
31
25
17
2
2
1
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
14
15
15
16
17
18
19
19
21
20
21
21
20
19
19
17
16
14
13
12
12
11
11

Feels Like (°C)

14
14
13
13
15
16
16
16
16
17
21
20
20
20
20
19
19
18
18
17
16
14
11
11

Dew Point (°C)

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

Relative Humidity (%)

98
98
96
96
92
88
83
78
72
68
68
69
69
69
69
70
76
85
93
93
95
95
93
95

Pressure (mb)

1008
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1008
1008
1008
1008
1008
1008

Ozone (du)

340
340
339
339
340
341
342
342
343
343
342
340
339
338
337
336
335
335
334
334
334
334
333
333

Friday 28

Full Moon 99%

20:11

06:29

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
00 Bad

Sun - Rise: 06:20, Set: 20:10, Transit: 13:15. Moon - Rise: 20:11, Set: 06:29. Civil Dark: 20:46 - 05:44. Nautical Dark: 21:31 - 04:59. Astro Dark: 22:21 - 04:08

Total Clouds (% Sky Obscured)

83
92
100
100
100
100
90
80
69
78
88
98
98
95
94
75
57
40
47
55
64

Low Clouds (% Sky Obscured)

43
44
48
47
50
50
43
37
32
34
36
38
41
44
47
47
45
40
47
54
61

Medium Clouds (% Sky Obscured)

13
13
10
7
5
2
2
3
2
3
4
5
5
5
5
5
5
4
6
9
11

High Clouds (% Sky Obscured)

43
53
60
53
45
42
38
30
21
30
35
53
47
37
36
24
10
0
1
1
2

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Probability (%)

4
6
6
8
8
6
22
27
26
39
40
33
38
35
25
25
21
3
5
5
3

Precipitation Amount (mm)

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)

4
4
4
4
6
7
9
11
12
14
14
15
16
15
14
13
11
8
6
6
5

Chance of Frost

Temperature (°C)

11
11
11
11
13
15
17
17
18
19
19
19
19
18
18
17
16
15
14
14
14

Feels Like (°C)

11
11
10
10
12
14
15
15
15
15
18
18
17
17
17
17
15
15
16
15
14

Dew Point (°C)

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

Relative Humidity (%)

95
93
90
90
87
86
83
78
72
68
68
67
68
70
74
77
83
90
96
96
95

Pressure (mb)

1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1009
1009
1009
1009
1009

Ozone (du)

333
333
333
334
334
335
336
334
333
331
331
331
330
328
327
325
324
322
320
319
318

Forecast for Rhayader, Powys, United Kingdom (52.27,-3.57)

Generated: 22/08/26 04:14:20. Forecast: 22/08/26 to 28/08/26. Timezone: UTC+1.00