Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 12

Waning Gibbous 95%

22:38

07:41

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

Sun - Rise: 05:03, Set: 21:17, Transit: 13:09. Moon - Rise: 22:38, Set: 07:41. Civil Dark: 22:02 - 04:18. Nautical Dark: 23:07 - 03:13. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

0
0
0
3
16
0
0
20
36
43
36
45
23
0
0
0
0
0
0
0
0
0
0
4

Low Clouds (% Sky Obscured)

0
0
0
3
9
0
0
20
36
43
36
45
23
0
0
0
0
0
0
0
0
0
0
4

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
3
3
0
0
0
0
3
3
2
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
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)

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

Chance of Frost

Temperature (°C)

22
23
25
27
28
29
30
30
30
30
29
28
27
24
22
21
19
18
17
16
15
14
14
16

Feels Like (°C)

23
24
26
27
27
28
29
28
28
29
27
26
25
25
23
22
20
19
18
17
16
15
15
17

Dew Point (°C)

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

Relative Humidity (%)

51
46
42
40
34
30
28
27
27
26
26
28
37
49
57
61
60
62
66
73
75
83
83
68

Pressure (mb)

1018
1018
1017
1017
1016
1015
1015
1014
1014
1014
1013
1013
1014
1014
1015
1015
1015
1015
1014
1014
1014
1014
1014
1014

Ozone (du)

326
326
328
329
330
330
331
331
331
329
329
330
331
332
332
332
334
335
336
336
334
334
334
332

Sunday 13

Waning Gibbous 88%

22:54

No Set

08 OK
09 OK
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 OK
06 OK
07 OK

Sun - Rise: 05:04, Set: 21:16, Transit: 13:09. Moon - Rise: 22:54, Set: No Set. Civil Dark: 22:00 - 04:20. Nautical Dark: 23:06 - 03:15. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

19
27
54
70
97
82
76
90
76
73
66
72
81
100
100
100
100
100
100
52
52
38
48
19

Low Clouds (% Sky Obscured)

4
0
25
50
33
57
37
22
15
26
14
35
69
72
57
42
38
54
30
0
5
16
35
19

Medium Clouds (% Sky Obscured)

5
10
16
25
40
37
33
37
31
28
23
23
30
32
33
78
75
95
39
25
25
13
14
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
2
0
2
2
3
55
67
100
100
100
100
91
80
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
7
9
9
9
9
2
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
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
7
0
11
2
5
13
14
57
64
6
3
2
4
2
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.6
0.7
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
21
22
24
24
25
24
24
26
27
29
26
25
23
22
20
18
17
16
18
17
16
17
18

Dew Point (°C)

11
11
11
12
12
11
12
15
14
13
12
13
19
18
15
13
12
12
13
13
13
12
13
13

Relative Humidity (%)

61
56
51
46
43
41
42
49
45
40
38
42
69
72
61
57
59
62
70
74
78
79
79
74

Pressure (mb)

1014
1013
1013
1012
1012
1012
1011
1011
1010
1010
1009
1009
1010
1010
1010
1010
1011
1011
1011
1010
1010
1010
1011
1011

Ozone (du)

331
330
330
330
330
332
330
327
326
326
327
325
326
326
328
330
333
342
342
339
338
336
334
333

Monday 14

Waning Gibbous 80%

23:07

09:04

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 OK
22 Bad
23 Good
00 Good
01 Good
02 Good
03 OK
04 OK
05 OK
06 OK
07 OK

Sun - Rise: 05:05, Set: 21:15, Transit: 13:09. Moon - Rise: 23:07, Set: 09:04. Civil Dark: 21:59 - 04:21. Nautical Dark: 23:04 - 03:17. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

80
51
47
45
57
72
73
56
89
84
79
71
49
36
56
17
0
4
7
11
14
17
21
43

Low Clouds (% Sky Obscured)

74
44
46
45
10
30
49
51
73
59
58
50
49
36
41
0
0
4
7
11
13
17
21
30

Medium Clouds (% Sky Obscured)

3
3
0
0
13
12
9
0
7
18
44
9
11
2
16
6
0
0
0
0
0
0
0
21

High Clouds (% Sky Obscured)

0
0
0
0
1
13
1
1
30
35
45
50
1
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
3
12
0
0
0
0
0
1
0
1
0
0
4
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)

10
12
14
14
15
14
16
19
18
15
13
13
13
10
8
9
7
6
6
6
6
6
7
9

Chance of Frost

Temperature (°C)

19
21
23
24
24
26
25
25
25
24
23
22
21
19
17
15
14
13
12
11
11
11
11
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

66
57
49
48
37
30
29
31
38
46
47
37
38
48
61
67
75
83
89
92
91
95
90
76

Pressure (mb)

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

Ozone (du)

334
333
332
332
333
336
339
337
341
343
344
346
346
349
350
352
356
361
363
363
363
361
360
355

Tuesday 15

Waning Gibbous 70%

23:19

10:26

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 OK
22 OK
23 OK
00 Good
01 OK
02 OK
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:06, Set: 21:14, Transit: 13:10. Moon - Rise: 23:19, Set: 10:26. Civil Dark: 21:58 - 04:22. Nautical Dark: 23:02 - 03:19. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

61
80
87
99
99
100
100
100
95
91
85
70
58
38
22
14
10
10
10
15
47
73
100
83

Low Clouds (% Sky Obscured)

37
40
39
36
36
49
62
76
74
71
58
56
37
22
19
14
10
10
10
15
30
30
30
33

Medium Clouds (% Sky Obscured)

46
72
74
73
64
54
45
35
95
91
85
70
58
38
22
14
10
10
10
15
47
45
39
31

High Clouds (% Sky Obscured)

0
0
0
0
10
10
1
10
10
11
20
25
30
35
17
3
5
2
6
8
36
57
86
61

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

Precipitation Probability (%)

0
2
21
29
36
49
66
77
78
73
63
53
40
15
14
9
1
18
15
31
30
6
9
10

Precipitation Amount (mm)

0
0
0
0
0
0
0.4
0.4
0.5
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

12
13
14
14
14
13
13
11
11
11
10
11
10
8
6
6
7
8
9
9
10
11
11
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

65
52
43
37
40
41
43
49
50
45
45
41
45
54
63
61
64
82
90
92
95
95
95
95

Pressure (mb)

1017
1017
1017
1017
1017
1017
1016
1016
1016
1016
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1016

Ozone (du)

351
349
343
341
340
336
334
331
328
328
325
322
319
318
315
311
308
304
300
299
299
300
300
300

Wednesday 16

Waning Gibbous 59%

23:31

11:49

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
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:08, Set: 21:13, Transit: 13:10. Moon - Rise: 23:31, Set: 11:49. Civil Dark: 21:57 - 04:24. Nautical Dark: 23:00 - 03:21. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

68
52
53
53
56
68
79
90
64
39
14
58
49
30
35
37
42
51
64
77
75
74
73
66

Low Clouds (% Sky Obscured)

41
38
38
42
45
37
28
15
13
10
7
30
15
0
13
26
39
50
62
76
75
74
73
66

Medium Clouds (% Sky Obscured)

27
19
35
30
30
35
35
25
20
20
14
40
49
30
35
37
42
51
63
66
62
58
54
58

High Clouds (% Sky Obscured)

36
16
30
31
31
31
47
65
61
35
14
54
49
30
25
20
15
13
16
19
15
16
17
29

ISS Passover

Visibility (miles)

9
9
9
7
8
5
9
8
9
7
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
Very Light Rain
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

25
13
34
55
34
56
34
32
38
41
32
39
32
23
23
23
22
22
20
18
18
19
20
29

Precipitation Amount (mm)

0
0
0
0.2
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
83
81
88
92
91
94
92
94
92
91
94
93
93
95
95
95
95
93
95
95
92
92
89

Pressure (mb)

1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1014

Ozone (du)

300
299
301
299
300
303
305
305
307
309
311
312
313
315
317
319
322
325
322
320
317
315
312
310

Thursday 17

Waning Gibbous 48%

23:44

13:13

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
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:09, Set: 21:12, Transit: 13:10. Moon - Rise: 23:44, Set: 13:13. Civil Dark: 21:55 - 04:25. Nautical Dark: 22:58 - 03:23. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

55
45
65
83
100
100
100
100
98
96
94
84
74
64
75
87
99
99
97
98
82
64
48
40

Low Clouds (% Sky Obscured)

52
38
53
68
83
72
60
49
61
75
89
66
43
20
13
7
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

55
45
65
83
97
98
96
87
84
83
90
74
55
34
34
32
35
34
32
28
21
15
11
8

High Clouds (% Sky Obscured)

32
40
57
77
100
99
98
97
67
39
15
39
38
42
55
71
88
89
90
90
66
41
19
28

ISS Passover

Visibility (miles)

9
9
9
8
8
7
7
8
9
8
7
6
7
8
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
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

34
38
43
48
53
61
67
71
67
61
55
43
29
5
4
2
0
2
1
0
2
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
18
18
19
19
20
22
20
20
19
18
18
15
16
16
16
16
16
13
13
13
13
13
12

Dew Point (°C)

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

Relative Humidity (%)

86
82
79
75
72
68
75
80
88
89
90
90
90
89
90
92
92
93
93
95
95
93
90
89

Pressure (mb)

1013
1013
1013
1013
1013
1013
1013
1012
1012
1012
1012
1012
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1015

Ozone (du)

309
309
308
309
310
311
314
317
320
320
320
320
321
323
324
325
327
328
328
328
328
329
329
330

Friday 18

Third Quarter 36%

00:00

14:39

08 OK
09 OK
10 OK
11 OK
12 OK
13 OK
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 05:10, Set: 21:11, Transit: 13:10. Moon - Rise: 00:00, Set: 14:39. Civil Dark: 21:54 - 04:27. Nautical Dark: 22:56 - 03:26. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

31
19
25
28
27
33
43
50
71
88
99
99
99
99
97
95
93

Low Clouds (% Sky Obscured)

1
1
6
12
17
16
17
18
11
5
0
1
1
1
1
0
0

Medium Clouds (% Sky Obscured)

5
3
2
1
1
9
18
26
45
63
79
79
79
79
61
52
39

High Clouds (% Sky Obscured)

31
19
25
23
20
11
3
3
27
50
74
81
86
92
85
77
70

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

4
7
7
9
8
8
5
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
15
16
16
17
17
23
21
20
20
20
20
16
15
15
14
13

Dew Point (°C)

13
12
12
10
8
6
5
5
4
5
6
6
8
8
10
10
10

Relative Humidity (%)

77
66
58
47
38
31
30
28
26
30
33
37
45
52
64
69
75

Pressure (mb)

1015
1015
1015
1015
1014
1014
1014
1014
1013
1013
1013
1013
1013
1014
1014
1014
1014

Ozone (du)

330
330
330
331
331
332
332
333
333
335
336
338
340
342
344
344
344

Forecast for Reading, Reading, United Kingdom (51.45,-0.98)

Generated: 12/07/25 08:43:04. Forecast: 12/07/25 to 18/07/25. Timezone: UTC+1.00