Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 27

Waxing Gibbous 97%

20:27

03:28

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

Sun - Rise: 05:19, Set: 21:02, Transit: 13:10. Moon - Rise: 20:27, Set: 03:28. Civil Dark: 21:45 - 04:37. Nautical Dark: 22:44 - 03:39. Astro Dark: 00:23 - 02:05

Total Clouds (% Sky Obscured)

57
55
53
50
36
30
26
66
85
87
77
92
100
85
88
39
98
70
82
92
100
100
97
98

Low Clouds (% Sky Obscured)

37
38
29
25
23
21
19
60
75
38
29
25
41
25
19
0
0
5
18
17
18
20
27
39

Medium Clouds (% Sky Obscured)

0
0
0
2
0
1
3
20
25
33
35
46
51
29
6
7
42
28
51
54
92
97
80
47

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
5
20
43
43
53
100
81
86
31
92
53
72
84
72
45
78
81

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
18
18
19
19
20
21
21
20
20
21
19
19
18
19
18
19
17
16
18
17
17
18
19

Dew Point (°C)

9
8
6
5
4
4
5
6
9
10
12
13
14
15
16
16
16
16
16
16
16
15
14
14

Relative Humidity (%)

53
46
40
34
31
29
31
33
39
45
52
61
69
75
80
84
88
90
93
95
95
85
75
65

Pressure (mb)

1017
1018
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

333
333
334
334
333
331
330
331
331
330
330
329
329
329
328
327
326
325
324
324
324
322
320
319

Tuesday 28

Waxing Gibbous 100%

20:54

04:42

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 Good
02 Good
03 Good
04 Good
05 Good
06 Good
07 Good
08 Good
09 OK

Sun - Rise: 05:21, Set: 21:01, Transit: 13:10. Moon - Rise: 20:54, Set: 04:42. Civil Dark: 21:43 - 04:39. Nautical Dark: 22:42 - 03:41. Astro Dark: 00:16 - 02:11

Total Clouds (% Sky Obscured)

98
91
99
95
96
100
100
96
90
89
75
77
71
53
55
7
6
14
14
4
13
0
0
30

Low Clouds (% Sky Obscured)

38
35
31
30
42
36
14
14
13
14
15
12
14
14
0
0
0
0
0
3
0
0
0
17

Medium Clouds (% Sky Obscured)

43
37
61
81
85
100
86
61
34
57
55
39
39
35
55
5
5
3
0
0
9
0
0
15

High Clouds (% Sky Obscured)

74
86
94
30
29
78
74
77
82
69
25
37
28
8
3
3
3
11
14
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
1
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)

12
12
12
12
13
12
12
11
10
9
6
4
4
5
5
4
3
2
2
3
3
2
4
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

56
49
44
38
35
33
32
31
30
30
36
43
47
51
58
59
63
68
69
70
69
60
53
46

Pressure (mb)

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

Ozone (du)

320
321
320
321
321
322
322
322
322
323
323
325
326
327
328
327
328
330
333
332
330
330
331
331

Wednesday 29

Full Moon 100%

21:14

05:59

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

Sun - Rise: 05:23, Set: 20:59, Transit: 13:10. Moon - Rise: 21:14, Set: 05:59. Civil Dark: 21:41 - 04:41. Nautical Dark: 22:39 - 03:43. Astro Dark: 00:10 - 02:16

Total Clouds (% Sky Obscured)

28
26
24
25
29
18
27
44
55
100
82
26
31
81
21
6
33
30
13
20
38
42
81
90

Low Clouds (% Sky Obscured)

20
22
20
21
23
14
20
14
16
0
18
18
23
19
16
4
2
0
0
12
17
19
28
32

Medium Clouds (% Sky Obscured)

2
0
0
0
0
0
3
19
6
14
2
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
1
0
0
0
1
20
100
82
3
0
76
1
2
26
30
11
3
22
25
65
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
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
7
8
9
11
11
11
12
13
11
9
7
5
5
6
7
7
7
7
7
7
8
10
12

Chance of Frost

Temperature (°C)

24
25
27
28
29
30
30
30
29
28
27
25
23
21
20
19
18
17
17
16
16
17
19
21

Feels Like (°C)

25
26
27
27
28
28
28
27
26
25
24
23
22
21
20
20
19
16
15
16
16
17
18
18

Dew Point (°C)

9
8
7
7
6
5
5
5
6
7
8
8
9
11
13
14
14
14
15
15
14
14
14
14

Relative Humidity (%)

38
32
28
26
23
21
20
20
23
25
29
34
42
52
64
72
77
82
89
92
90
81
71
65

Pressure (mb)

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

Ozone (du)

329
328
328
327
325
323
324
325
325
324
325
325
325
325
326
328
328
329
329
331
332
330
332
334

Thursday 30

Waning Gibbous 98%

21:29

07:16

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 OK
06 OK
07 OK
08 Good
09 Good

Sun - Rise: 05:24, Set: 20:58, Transit: 13:10. Moon - Rise: 21:29, Set: 07:16. Civil Dark: 21:40 - 04:42. Nautical Dark: 22:37 - 03:46. Astro Dark: 00:04 - 02:22

Total Clouds (% Sky Obscured)

76
90
98
99
99
100
100
100
100
100
100
100
100
100
100
76
60
40
45
45
45
42
11
13

Low Clouds (% Sky Obscured)

30
34
42
53
63
58
67
66
53
45
33
32
20
10
0
0
0
0
0
0
0
4
8
12

Medium Clouds (% Sky Obscured)

12
24
31
22
23
1
52
77
83
83
71
55
50
50
53
17
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

53
68
76
84
92
100
100
100
100
100
100
100
100
100
100
72
60
40
45
45
45
38
2
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
1
2
5
7
9
8
10
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)

13
13
13
13
16
16
16
13
13
13
10
8
7
8
8
7
6
5
5
5
5
6
7
8

Chance of Frost

Temperature (°C)

23
23
23
24
25
25
26
25
24
23
21
20
18
17
16
14
13
13
12
12
12
12
14
16

Feels Like (°C)

20
21
21
22
21
22
23
22
21
20
19
18
15
13
12
12
11
10
10
10
10
10
11
15

Dew Point (°C)

14
12
11
9
10
13
14
14
12
11
10
10
5
1
4
6
7
8
8
9
9
8
8
8

Relative Humidity (%)

59
50
45
39
38
45
46
51
47
48
49
52
43
34
47
57
66
72
76
81
81
73
64
57

Pressure (mb)

1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1014
1014
1015
1015
1015
1016
1016
1016
1016
1017
1017
1017

Ozone (du)

336
334
334
335
337
336
334
334
334
334
334
335
335
336
337
339
341
343
345
347
350
350
351
354

Friday 31

Waning Gibbous 94%

21:41

08:33

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

Sun - Rise: 05:26, Set: 20:56, Transit: 13:10. Moon - Rise: 21:41, Set: 08:33. Civil Dark: 21:38 - 04:44. Nautical Dark: 22:34 - 03:48. Astro Dark: 23:58 - 02:27

Total Clouds (% Sky Obscured)

21
28
39
44
49
54
50
42
59
68
57
41
40
38
39
37
35
30
16
13
11
22
38
58

Low Clouds (% Sky Obscured)

19
21
25
18
10
2
4
6
47
62
40
3
1
1
1
1
0
0
1
2
2
2
2
2

Medium Clouds (% Sky Obscured)

5
10
15
20
21
26
22
17
11
12
16
17
17
11
9
5
3
1
1
3
2
11
22
28

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
7
14
23
30
35
29
11
4
1
3
18
51

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)

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

Chance of Frost

Temperature (°C)

18
19
20
22
22
23
23
23
23
22
20
18
16
14
13
12
11
11
10
10
11
12
14
17

Feels Like (°C)

17
17
18
19
19
20
20
21
22
16
16
14
14
13
12
11
11
11
10
10
9
9
13
14

Dew Point (°C)

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

Relative Humidity (%)

50
42
36
33
30
27
26
25
25
32
39
45
51
58
61
64
67
71
76
72
68
66
57
50

Pressure (mb)

1018
1018
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018
1019
1019
1020
1020
1020
1020
1020
1020
1021
1021
1021
1020

Ozone (du)

356
358
359
358
358
357
358
358
357
355
356
356
357
357
357
358
357
356
355
353
351
349
348
346

Saturday 1

Waning Gibbous 88%

21:52

09:49

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: 05:27, Set: 20:54, Transit: 13:10. Moon - Rise: 21:52, Set: 09:49. Civil Dark: 21:36 - 04:46. Nautical Dark: 22:32 - 03:51. Astro Dark: 23:53 - 02:32

Total Clouds (% Sky Obscured)

60
63
75
81
73
61
59
66
76
81
84
90
93
97
100
94
91
87
88
90
90
93
96
99

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

27
25
24
22
20
20
33
44
52
51
45
44
41
37
33
28
23
18
19
19
24
26
22
24

High Clouds (% Sky Obscured)

60
63
75
77
64
48
34
22
11
10
8
9
36
68
100
72
43
15
14
12
11
35
59
84

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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
4
6
7
7
5

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
6
6
7
7
8
8
8
9
8
8
9
8
7
6
6
6
6
6
6
5
6
6

Chance of Frost

Temperature (°C)

19
20
21
22
23
24
24
24
23
23
21
20
18
17
16
15
14
14
14
14
15
15
16
18

Feels Like (°C)

14
15
15
17
22
22
21
21
21
22
20
19
18
18
18
17
10
11
12
12
11
11
13
13

Dew Point (°C)

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

Relative Humidity (%)

43
37
33
29
26
24
22
23
23
23
28
35
43
47
52
56
60
63
68
66
64
63
55
47

Pressure (mb)

1020
1020
1020
1019
1019
1019
1018
1018
1018
1018
1018
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1021

Ozone (du)

345
344
343
342
339
337
335
334
333
333
333
333
333
333
334
334
334
334
334
333
332
332
333
333

Sunday 2

Waning Gibbous 80%

22:02

No Set

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

Sun - Rise: 05:29, Set: 20:53, Transit: 13:10. Moon - Rise: 22:02, Set: No Set. Civil Dark: 21:34 - 04:48. Nautical Dark: 22:29 - 03:53. Astro Dark: 23:48 - 02:36

Total Clouds (% Sky Obscured)

99
98
97
88
76
66
55
49
41
44
48
60
63
70
73
73
70
66
66
71
66

Low Clouds (% Sky Obscured)

5
2
0
2
6
10
14
16
19
11
5
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

32
39
39
36
39
39
38
43
38
43
48
52
51
49
39
35
40
40
49
55
66

High Clouds (% Sky Obscured)

87
89
91
81
65
51
43
37
36
41
41
36
27
37
32
25
18
12
28
50
63

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

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 (%)

9
10
4
4
3
0
0
0
0
0
0
0
5
9
12
13
9
0
4
5
5

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)

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

Chance of Frost

Temperature (°C)

19
20
21
22
23
24
25
24
24
23
22
21
20
18
17
16
15
14
14
14
14

Feels Like (°C)

13
13
14
14
21
21
21
21
21
21
22
23
23
22
21
21
14
14
14
14
13

Dew Point (°C)

5
4
3
2
2
1
1
1
0
0
3
6
9
10
11
12
12
11
10
10
10

Relative Humidity (%)

40
34
30
26
24
22
21
21
21
21
28
36
48
56
65
77
78
79
80
79
76

Pressure (mb)

1021
1020
1020
1020
1019
1019
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

334
334
333
333
332
331
330
329
328
328
328
328
329
328
328
328
327
327
327
326
325

Forecast for Nether Heyford, Northamptonshire, United Kingdom (52.22,-1.04)

Generated: 27/07/26 10:24:16. Forecast: 27/07/26 to 02/08/26. Timezone: UTC+1.00