Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 31

Waning Gibbous 94%

21:44

08:33

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

Sun - Rise: 05:24, Set: 21:01, Transit: 13:12. Moon - Rise: 21:44, Set: 08:33. Civil Dark: 21:43 - 04:42. Nautical Dark: 22:42 - 03:44. Astro Dark: 00:17 - 02:13

Total Clouds (% Sky Obscured)

54
48
43
53
39
49
56
23
16
2
4
0
2
2
12
5
5
3
1
6
2
8
24
26

Low Clouds (% Sky Obscured)

23
22
19
12
30
33
50
8
2
2
2
0
0
0
0
2
2
2
1
6
2
8
24
26

Medium Clouds (% Sky Obscured)

17
22
32
28
19
25
29
16
14
0
2
0
2
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
2
3
0
0
0
0
0
2
11
3
3
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 (%)

1
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
9
9
10
12
13
15
15
15
14
11
9
6
6
5
4
3
3
3
3
3
3
7
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

6
4
3
1
0
1
2
1
3
4
4
5
6
7
7
8
8
8
8
7
7
7
8
7

Relative Humidity (%)

46
39
33
29
26
26
29
30
34
38
41
50
61
69
72
77
83
85
87
88
88
77
66
55

Pressure (mb)

1019
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1020
1020
1020

Ozone (du)

353
354
355
355
355
355
355
356
358
360
360
359
360
361
363
365
367
369
364
363
362
362
362
361

Saturday 1

Waning Gibbous 88%

21:54

09:51

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

Sun - Rise: 05:26, Set: 20:59, Transit: 13:12. Moon - Rise: 21:54, Set: 09:51. Civil Dark: 21:41 - 04:44. Nautical Dark: 22:40 - 03:46. Astro Dark: 00:10 - 02:19

Total Clouds (% Sky Obscured)

30
39
41
51
50
45
64
19
4
3
70
39
16
79
64
78
59
84
92
73
82
80
81
71

Low Clouds (% Sky Obscured)

30
34
24
30
23
17
17
8
0
0
0
0
0
0
0
0
0
6
17
22
0
0
0
0

Medium Clouds (% Sky Obscured)

0
21
23
30
26
24
12
0
0
0
0
0
0
48
33
45
42
74
73
71
82
80
67
39

High Clouds (% Sky Obscured)

0
0
0
0
0
0
45
10
4
3
48
28
15
57
64
65
59
55
87
53
65
49
51
48

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 (%)

1
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)

11
11
11
11
11
12
13
14
14
13
11
8
5
4
5
4
3
4
3
3
3
3
3
3

Chance of Frost

Temperature (°C)

17
17
18
19
19
20
20
20
19
18
17
14
13
11
9
8
8
7
7
7
7
9
13
16

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

47
41
35
31
28
28
30
34
36
39
42
54
69
75
76
77
81
79
77
77
77
67
60
55

Pressure (mb)

1020
1020
1020
1019
1019
1019
1019
1019
1019
1019
1019
1020
1020
1021
1021
1021
1020
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

359
358
356
350
345
344
342
340
339
339
338
337
337
337
336
335
335
335
336
337
336
335
334
332

Sunday 2

Waning Gibbous 80%

22:04

No Set

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
09 Bad

Sun - Rise: 05:28, Set: 20:57, Transit: 13:12. Moon - Rise: 22:04, Set: No Set. Civil Dark: 21:39 - 04:46. Nautical Dark: 22:37 - 03:49. Astro Dark: 00:04 - 02:25

Total Clouds (% Sky Obscured)

86
73
97
100
86
88
76
96
83
99
99
100
100
100
100
100
100
99
97
99
100
98
95
95

Low Clouds (% Sky Obscured)

0
2
2
0
0
9
2
4
2
2
1
1
6
16
23
29
30
29
30
30
28
25
21
18

Medium Clouds (% Sky Obscured)

29
23
34
75
69
64
76
88
80
86
48
51
42
84
87
87
93
76
69
57
99
86
79
83

High Clouds (% Sky Obscured)

68
48
86
100
39
50
30
30
55
93
95
100
100
100
100
100
100
79
79
98
60
81
70
75

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
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

5
4
3
3
2
2
2
2
1
1
7
10
10
10
11
10
11
12
13
13
13
12
11
9

Relative Humidity (%)

45
38
32
29
28
26
25
25
24
25
40
59
65
69
73
69
75
82
90
95
93
82
69
58

Pressure (mb)

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

Ozone (du)

334
334
334
333
331
330
331
330
331
331
332
333
334
335
335
335
337
336
338
340
338
336
335
334

Monday 3

Waning Gibbous 71%

22:14

11:10

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
09 Bad

Sun - Rise: 05:29, Set: 20:55, Transit: 13:12. Moon - Rise: 22:14, Set: 11:10. Civil Dark: 21:37 - 04:48. Nautical Dark: 22:34 - 03:51. Astro Dark: 23:58 - 02:30

Total Clouds (% Sky Obscured)

89
81
75
77
78
80
84
87
91
93
96
99
99
100
100
99
99
98
99
99
92
99
98
97

Low Clouds (% Sky Obscured)

19
19
18
14
8
0
2
8
31
28
44
61
43
50
45
55
44
74
73
59
40
37
43
78

Medium Clouds (% Sky Obscured)

69
69
61
36
78
31
84
73
61
58
93
92
43
79
66
99
92
96
95
92
74
34
34
31

High Clouds (% Sky Obscured)

61
45
42
51
56
60
65
71
66
76
83
95
97
99
100
93
83
75
80
36
38
93
81
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
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
Very Light Rain
Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

1
1
0
1
0
0
0
0
1
4
5
4
14
19
22
49
56
66
53
43
24
6
2
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

13
14
14
13
12
12
12
13
16
15
15
14
14
12
11
9
10
10
9
7
6
5
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

8
8
8
7
4
3
2
2
6
8
10
11
13
14
15
15
15
14
14
14
14
14
14
13

Relative Humidity (%)

50
44
39
35
28
24
22
24
34
40
50
60
71
85
90
96
92
90
89
89
90
86
78
68

Pressure (mb)

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

Ozone (du)

334
333
332
332
332
330
330
329
328
327
325
326
327
327
325
324
324
323
325
321
319
318
316
315

Tuesday 4

Waning Gibbous 60%

22:26

12:32

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 OK
04 OK
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 05:31, Set: 20:54, Transit: 13:12. Moon - Rise: 22:26, Set: 12:32. Civil Dark: 21:35 - 04:50. Nautical Dark: 22:32 - 03:54. Astro Dark: 23:53 - 02:35

Total Clouds (% Sky Obscured)

98
99
100
99
97
95
97
98
100
96
91
74
86
66
44
38
33
25
32
42
54
70
83
96

Low Clouds (% Sky Obscured)

80
59
41
56
75
81
73
64
57
64
72
53
82
57
40
35
30
25
30
40
49
62
76
90

Medium Clouds (% Sky Obscured)

35
39
38
37
39
46
56
78
50
62
52
20
11
5
1
0
0
0
0
0
0
12
24
36

High Clouds (% Sky Obscured)

81
90
100
85
70
59
72
79
100
73
29
1
1
0
0
0
0
0
5
12
19
30
37
46

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 (%)

16
25
35
34
41
53
45
37
19
24
30
37
36
32
20
39
28
0
0
1
0
2
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
12
12
10
8
9
9
12
12
13
13
14
14
13
13
14
14
14
14
14
14
14
13
13

Relative Humidity (%)

61
61
52
44
39
40
44
53
51
54
57
65
71
66
76
86
89
92
95
93
90
89
81
74

Pressure (mb)

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

Ozone (du)

315
315
315
316
316
316
315
315
316
317
319
321
323
323
325
326
326
326
326
327
328
330
330
330

Wednesday 5

Waning Gibbous 49%

22:42

13:58

10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 OK
19 OK
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

Sun - Rise: 05:33, Set: 20:52, Transit: 13:11. Moon - Rise: 22:42, Set: 13:58. Civil Dark: 21:33 - 04:52. Nautical Dark: 22:29 - 03:56. Astro Dark: 23:48 - 02:40

Total Clouds (% Sky Obscured)

94
91
88
89
92
92
68
47
28
38
48
59
55
61
64
72
79
86
86
86
85
89
93
96

Low Clouds (% Sky Obscured)

89
85
82
61
38
16
11
7
3
6
11
15
12
9
7
16
25
34
37
41
44
46
48
55

Medium Clouds (% Sky Obscured)

38
40
35
23
14
0
0
0
0
2
4
5
18
29
31
25
19
16
11
9
8
21
37
57

High Clouds (% Sky Obscured)

34
22
17
44
64
81
62
43
22
26
25
29
25
22
18
38
59
56
50
53
50
56
59
64

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
8
8

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 (%)

2
2
0
3
3
0
0
0
0
0
0
0
0
0
0
0
0
0
2
5
8
11
17
24

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
15
15
15
16
16
17
16
16
15
13
12
11
11
11
11
9
8
6
6
6
7
6
6

Chance of Frost

Temperature (°C)

18
20
21
22
22
23
23
22
21
20
18
17
15
14
14
13
13
12
12
13
13
14
15
16

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
59
52
46
41
36
32
37
42
48
55
63
73
75
80
86
87
90
92
89
83
80
75
72

Pressure (mb)

1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

330
332
333
334
334
334
334
334
335
336
338
340
341
344
347
350
348
347
345
345
345
345
347
349

Thursday 6

Third Quarter 37%

23:05

15:27

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

Sun - Rise: 05:34, Set: 20:50, Transit: 13:11. Moon - Rise: 23:05, Set: 15:27. Civil Dark: 21:31 - 04:53. Nautical Dark: 22:26 - 03:59. Astro Dark: 23:43 - 02:44

Total Clouds (% Sky Obscured)

95
93
91
84
76
68
72
72
71
74
78
87
91
94
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

66
75
82
76
70
64
72
72
71
74
78
87
91
93
92
98
99
100
100
100
99

Medium Clouds (% Sky Obscured)

42
29
20
25
25
20
20
25
25
30
30
45
53
56
52
67
81
97
97
96
94

High Clouds (% Sky Obscured)

63
61
45
50
55
55
60
60
60
47
40
47
64
83
100
90
73
45
57
74
91

ISS Passover

Visibility (miles)

7
8
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
0
0

Precipitation Type

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

Precipitation Probability (%)

39
54
68
65
56
40
56
75
91
85
91
95
95
95
95
63
39
6
10
8
4

Precipitation Amount (mm)

0
0.2
0.3
0.3
0.2
0
0
0.4
0.6
0.5
0.6
0.6
0.7
1.1
1.6
0.4
0
0
0
0
0

Wind Speed/Direction (mph)

7
7
7
6
6
6
8
8
7
8
7
7
6
7
8
10
10
10
10
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

11
8
6
4
3
2
2
2
3
4
5
6
7
8
9
9
10
10
10
10
10

Relative Humidity (%)

67
54
44
36
33
31
29
32
34
38
44
53
60
65
72
79
79
79
79
78
75

Pressure (mb)

1017
1017
1017
1017
1017
1016
1016
1016
1016
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

350
351
352
353
351
349
347
346
345
344
341
339
336
334
331
328
327
327
326
326
327

Forecast for Darley Abbey, Derby, United Kingdom (52.94,-1.48)

Generated: 31/07/26 10:43:46. Forecast: 31/07/26 to 06/08/26. Timezone: UTC+1.00