Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 18

First Quarter 39%

14:30

21:20

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

Sun - Rise: 06:44, Set: 19:13, Transit: 12:58. Moon - Rise: 14:30, Set: 21:20. Civil Dark: 19:46 - 06:11. Nautical Dark: 20:26 - 05:31. Astro Dark: 21:08 - 04:49

Total Clouds (% Sky Obscured)

58
75
82
54
71
50
50
67
79
75
0
32
0
0
2
2
5
6
88
68
71
65
30
71

Low Clouds (% Sky Obscured)

35
37
34
29
14
27
7
9
1
0
0
0
0
9
0
2
5
6
20
33
26
22
24
71

Medium Clouds (% Sky Obscured)

0
0
0
0
30
7
0
0
0
0
8
13
0
0
0
0
0
0
0
0
0
6
12
21

High Clouds (% Sky Obscured)

0
31
75
26
6
1
0
0
1
1
0
0
0
0
0
0
0
6
75
47
50
48
11
5

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
9
9
9
9
9
9
9
9
9
9

Fog (%)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
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)

16
17
15
17
15
15
12
11
11
10
10
8
7
8
5
5
5
4
6
5
6
8
9
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
15
15
15
15
15
15
14
13
13
13
11
12
12
11
10
9
9
9
7
8
9
11
14

Dew Point (°C)

12
10
8
8
7
7
7
7
8
9
9
10
10
10
10
10
9
9
9
9
8
8
8
8

Relative Humidity (%)

66
55
49
46
46
44
48
53
59
65
74
85
88
88
90
91
91
93
95
95
84
71
63
59

Pressure (mb)

1010
1010
1010
1010
1010
1010
1010
1011
1011
1012
1012
1013
1013
1013
1013
1013
1013
1014
1014
1014
1015
1015
1015
1015

Ozone (du)

307
307
306
305
304
303
303
303
305
308
309
312
315
311
311
310
308
305
302
302
300
299
296
294

Saturday 19

Waxing Gibbous 49%

15:30

22:06

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
10 Bad
11 Bad

Sun - Rise: 06:46, Set: 19:11, Transit: 12:57. Moon - Rise: 15:30, Set: 22:06. Civil Dark: 19:44 - 06:12. Nautical Dark: 20:24 - 05:33. Astro Dark: 21:06 - 04:51

Total Clouds (% Sky Obscured)

62
81
98
100
100
100
99
99
94
95
98
90
100
98
100
99
94
83
89
100
98
88
100
99

Low Clouds (% Sky Obscured)

41
50
34
77
58
77
90
89
83
62
61
83
83
81
75
87
52
50
53
46
38
34
75
69

Medium Clouds (% Sky Obscured)

22
31
72
95
95
99
99
99
52
79
69
28
41
13
13
11
7
5
35
44
32
60
96
29

High Clouds (% Sky Obscured)

16
50
88
88
100
98
20
20
8
4
86
33
82
74
100
85
52
46
69
100
96
45
62
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
0
0
4
6
20
24
10
4
0
0
0
0
0
1
0
1
1
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
13
14
13
13
12
12
12
12
12
12
12
12
12
13
13
12
12
12
12
12
13
15
15

Chance of Frost

Temperature (°C)

18
18
18
18
18
18
17
16
16
16
16
16
16
16
16
16
16
16
16
16
16
17
18
19

Feels Like (°C)

14
15
14
14
14
13
13
12
12
12
13
12
12
13
12
13
13
13
13
13
14
14
15
16

Dew Point (°C)

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

Relative Humidity (%)

56
54
52
46
53
58
63
61
63
65
69
72
77
78
75
72
71
81
87
89
85
77
70
69

Pressure (mb)

1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1014
1014
1015
1015
1015
1015
1016
1016
1016

Ozone (du)

290
287
285
286
287
287
289
291
293
291
292
293
291
291
291
290
290
291
291
292
293
291
290
290

Sunday 20

Waxing Gibbous 59%

16:17

23:04

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
10 Bad
11 Bad

Sun - Rise: 06:47, Set: 19:08, Transit: 12:57. Moon - Rise: 16:17, Set: 23:04. Civil Dark: 19:42 - 06:14. Nautical Dark: 20:21 - 05:34. Astro Dark: 21:03 - 04:53

Total Clouds (% Sky Obscured)

95
98
98
100
86
99
100
100
99
90
98
100
100
73
100
98
98
100
100
87
100
98
100
100

Low Clouds (% Sky Obscured)

86
91
89
96
45
87
39
24
17
16
17
26
26
21
21
22
15
40
31
24
25
29
55
55

Medium Clouds (% Sky Obscured)

21
28
27
24
54
95
99
99
96
74
87
23
17
10
16
76
15
26
12
13
5
10
59
59

High Clouds (% Sky Obscured)

63
43
50
80
38
88
90
92
60
43
42
100
100
73
100
86
51
100
100
87
100
98
100
95

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
Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

0
0
11
7
20
41
25
14
5
0
1
1
1
11
22
14
17
54
12
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
0.4
0
0
0
0
0
0

Wind Speed/Direction (mph)

15
14
15
13
13
13
13
12
12
12
11
10
9
9
8
8
8
7
6
6
6
8
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
14
15
16
17
15
16
16
15
15
15
15
15
16
16
16
15
15
15
14
14
11
10
9

Relative Humidity (%)

63
68
68
74
80
70
77
80
78
80
81
83
88
90
95
95
95
95
96
95
90
73
63
57

Pressure (mb)

1016
1017
1017
1017
1017
1017
1018
1018
1019
1019
1020
1020
1021
1021
1021
1022
1022
1022
1023
1024
1025
1025
1026
1027

Ozone (du)

289
289
288
286
287
285
286
286
288
289
289
289
289
290
289
288
287
286
285
285
283
282
282
282

Monday 21

Waxing Gibbous 68%

16:53

00:13

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

Sun - Rise: 06:49, Set: 19:06, Transit: 12:57. Moon - Rise: 16:53, Set: 00:13. Civil Dark: 19:39 - 06:16. Nautical Dark: 20:19 - 05:36. Astro Dark: 21:00 - 04:55

Total Clouds (% Sky Obscured)

66
88
90
91
99
100
96
69
49
17
32
47
64
73
76
81
78
76
76
78
81
84
83
68

Low Clouds (% Sky Obscured)

44
40
34
25
4
32
33
21
23
2
3
3
4
8
10
13
18
16
12
29
15
18
22
28

Medium Clouds (% Sky Obscured)

60
64
65
69
86
83
39
10
3
3
4
3
5
5
5
5
6
7
8
8
8
11
11
14

High Clouds (% Sky Obscured)

32
68
77
66
95
100
92
66
38
5
21
36
53
52
52
51
36
21
10
15
23
27
32
8

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

Chance of Frost

Temperature (°C)

17
18
18
19
18
18
17
16
15
13
12
11
10
9
9
9
8
8
9
9
11
13
15
16

Feels Like (°C)

14
15
15
16
16
16
15
14
14
12
11
11
10
8
8
8
7
7
8
8
9
11
13
14

Dew Point (°C)

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

Relative Humidity (%)

55
58
59
61
61
63
65
70
75
78
79
79
77
77
77
77
77
78
78
80
73
63
56
54

Pressure (mb)

1027
1028
1028
1028
1028
1028
1029
1029
1030
1030
1031
1031
1031
1031
1031
1031
1031
1031
1031
1031
1032
1032
1032
1031

Ozone (du)

282
282
283
282
282
281
281
281
281
280
279
279
277
276
276
276
275
274
273
273
273
271
271
271

Tuesday 22

Waxing Gibbous 77%

17:19

01:26

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
10 Bad
11 Bad

Sun - Rise: 06:50, Set: 19:04, Transit: 12:56. Moon - Rise: 17:19, Set: 01:26. Civil Dark: 19:37 - 06:17. Nautical Dark: 20:16 - 05:38. Astro Dark: 20:58 - 04:57

Total Clouds (% Sky Obscured)

76
67
72
75
72
76
85
81
56
50
54
58
57
58
60
56
60
63
58
61
60
59
62
77

Low Clouds (% Sky Obscured)

34
44
51
62
62
66
78
75
40
29
37
45
51
52
56
56
52
52
39
31
30
22
19
45

Medium Clouds (% Sky Obscured)

13
16
20
19
16
16
14
19
20
19
13
12
10
5
3
1
1
2
2
5
6
6
10
11

High Clouds (% Sky Obscured)

24
2
2
2
0
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
23
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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
1
0
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
10
10
11
11
11
12
13
14
14
14
15
15
15
14
14
14
14
14
13
14
14
13
13

Relative Humidity (%)

54
55
53
53
52
54
60
66
71
79
83
87
90
92
92
92
93
93
93
95
92
81
72
66

Pressure (mb)

1031
1031
1030
1030
1029
1029
1029
1029
1029
1030
1030
1030
1030
1030
1029
1029
1029
1029
1029
1029
1029
1030
1030
1029

Ozone (du)

271
271
271
272
273
274
274
274
275
276
276
276
276
275
276
277
276
275
275
275
275
274
274
274

Wednesday 23

Waxing Gibbous 85%

17:38

02:42

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
10 Bad
11 Bad

Sun - Rise: 06:52, Set: 19:02, Transit: 12:56. Moon - Rise: 17:38, Set: 02:42. Civil Dark: 19:35 - 06:19. Nautical Dark: 20:14 - 05:40. Astro Dark: 20:55 - 04:59

Total Clouds (% Sky Obscured)

89
88
82
78
80
82
93
96
98
100
100
100
100
84
68
55
55
60
52
67
82
97
97
97

Low Clouds (% Sky Obscured)

65
68
72
77
80
82
93
96
98
100
100
100
100
81
63
46
38
30
21
45
68
95
80
65

Medium Clouds (% Sky Obscured)

12
11
10
11
10
6
5
2
0
0
0
0
0
4
5
5
10
10
10
28
31
33
24
16

High Clouds (% Sky Obscured)

69
53
31
10
9
9
10
18
28
24
33
52
67
52
51
55
55
60
52
60
76
78
80
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
2
1
0
5
3
0
2
2
1
1
1
0
2
3
3
7
9
8
7
7
1
3
4

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)

4
5
6
6
7
6
5
5
4
4
4
4
4
4
4
4
4
4
4
4
4
5
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

61
57
56
56
55
59
64
68
70
70
71
71
71
69
77
83
92
92
93
93
87
81
75
67

Pressure (mb)

1029
1029
1028
1028
1028
1027
1027
1027
1027
1027
1028
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027

Ozone (du)

274
273
274
274
275
274
274
273
273
272
272
272
273
274
273
272
271
272
274
275
275
275
275
276

Thursday 24

Waxing Gibbous 92%

17:54

03:59

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 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 06:54, Set: 18:59, Transit: 12:56. Moon - Rise: 17:54, Set: 03:59. Civil Dark: 19:32 - 06:21. Nautical Dark: 20:12 - 05:41. Astro Dark: 20:52 - 05:01

Total Clouds (% Sky Obscured)

97
95
94
92
89
87
85
89
93
97
96
95
91
78
67
57
50
45
40
53
56
55
68
74

Low Clouds (% Sky Obscured)

50
55
60
65
58
52
45
31
16
3
2
2
1
1
0
0
1
1
3
2
1
0
11
23

Medium Clouds (% Sky Obscured)

8
6
3
0
0
0
0
0
1
1
29
58
87
66
41
18
12
6
0
0
0
0
0
0

High Clouds (% Sky Obscured)

90
87
82
73
79
86
85
89
93
97
96
95
91
73
67
57
47
34
11
6
0
0
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
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 (%)

6
3
2
0
1
1
0
0
0
0
0
0
0
0
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
16
20
20
20
20
21
21
16
15
15
15
14
14
13
13
13
13
13
12
13
13
13
14

Dew Point (°C)

11
10
10
10
9
9
10
9
9
8
8
8
8
8
8
8
7
7
8
7
9
10
11
11

Relative Humidity (%)

61
54
52
50
48
52
56
59
61
62
64
66
68
69
70
71
72
73
76
77
75
73
70
68

Pressure (mb)

1027
1027
1027
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025
1025
1025
1026
1026
1026
1026
1025

Ozone (du)

277
278
279
279
279
279
279
279
281
283
285
288
291
295
297
299
300
299
297
295
295
295
295
295

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

Generated: 18/09/26 02:41:44. Forecast: 18/09/26 to 24/09/26. Timezone: UTC+1.00