Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 12%

02:18

18:12

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

Sun - Rise: 06:50, Set: 19:19, Transit: 13:04. Moon - Rise: 02:18, Set: 18:12. Civil Dark: 19:54 - 06:15. Nautical Dark: 20:36 - 05:33. Astro Dark: 21:20 - 04:49

Total Clouds (% Sky Obscured)

91
91
81
81
32
65
81
72
90
58
20
23
26
27
0
24
66
66
80
91
81
91
90
92

Low Clouds (% Sky Obscured)

80
79
31
74
87
63
31
22
20
18
24
25
25
10
11
6
20
17
17
19
31
54
76
61

Medium Clouds (% Sky Obscured)

18
0
0
21
25
65
49
16
34
2
0
0
0
2
9
3
8
18
59
48
13
37
60
44

High Clouds (% Sky Obscured)

0
5
7
42
54
29
39
8
42
5
3
4
5
7
6
2
5
3
4
19
4
2
2
37

ISS Passover

Visibility (miles)

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

Fog (%)

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

12
12
11
16
17
16
14
16
17
18
15
10
9
11
9
9
6
7
7
5
6
5
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
89
78
68
70
70
69
70
72
76
77
85
86
81
80
83
89
80
80
81
80
80
75
77

Pressure (mb)

1009
1009
1009
1009
1009
1010
1010
1010
1011
1012
1012
1012
1012
1013
1013
1013
1013
1014
1013
1014
1014
1014
1014
1015

Ozone (du)

266
268
271
268
267
266
264
263
262
261
260
260
260
260
260
260
259
259
259
258
258
258
259
258

Friday 19

Waning Crescent 6%

03:43

18:28

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: 06:51, Set: 19:17, Transit: 13:03. Moon - Rise: 03:43, Set: 18:28. Civil Dark: 19:52 - 06:17. Nautical Dark: 20:33 - 05:35. Astro Dark: 21:17 - 04:51

Total Clouds (% Sky Obscured)

92
96
83
80
90
94
70
77
91
92
96
97
100
100
100
100
100
100
100
100
100
100
97
96

Low Clouds (% Sky Obscured)

64
69
50
52
52
85
52
44
40
39
32
32
37
41
33
47
43
46
41
43
43
42
56
73

Medium Clouds (% Sky Obscured)

90
49
37
31
40
47
26
65
55
35
35
45
44
100
100
100
100
91
91
100
100
89
87
92

High Clouds (% Sky Obscured)

38
45
45
6
5
29
8
6
39
6
73
83
80
100
100
100
100
100
100
100
92
95
90
69

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
5
25
7
8
4
7
1
1
1
0
0
1
6
2
3
2
2
2
1
2
1
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)

7
11
12
13
14
15
14
13
11
11
11
11
12
12
12
12
12
13
12
12
11
12
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
88
89
91
91
82
77
78
80
77
78
82
81
82
85
82
83
85
85
86
89
83
77
75

Pressure (mb)

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

Ozone (du)

260
261
260
260
261
261
263
261
261
261
262
261
261
261
260
261
262
262
262
263
263
263
263
263

Saturday 20

Waning Crescent 2%

05:03

18:39

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: 06:53, Set: 19:14, Transit: 13:03. Moon - Rise: 05:03, Set: 18:39. Civil Dark: 19:49 - 06:18. Nautical Dark: 20:31 - 05:37. Astro Dark: 21:14 - 04:53

Total Clouds (% Sky Obscured)

98
99
96
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

83
82
87
77
80
82
100
100
93
86
79
89
93
58
46
61
78
98
100
99
90
91
88
84

Medium Clouds (% Sky Obscured)

69
63
58
100
87
81
73
76
77
81
76
75
94
95
87
90
100
98
100
100
98
60
89
91

High Clouds (% Sky Obscured)

81
88
76
82
91
85
77
97
100
100
100
100
93
83
100
100
100
100
100
100
100
98
55
62

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

Precipitation Probability (%)

6
6
4
9
4
13
2
2
2
3
5
8
49
40
21
26
25
38
43
56
82
26
21
41

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0.3
0.7
0
0
0

Wind Speed/Direction (mph)

14
14
14
13
12
12
10
8
7
6
6
6
6
6
5
4
4
3
3
3
3
4
5
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
63
58
56
58
61
64
73
82
90
92
93
93
90
86
85
83
85
85
83
85
83
85
81

Pressure (mb)

1015
1015
1014
1014
1013
1013
1013
1013
1014
1013
1013
1013
1013
1013
1012
1012
1011
1011
1010
1010
1010
1009
1009
1008

Ozone (du)

263
262
261
260
261
262
263
264
264
265
267
267
266
265
265
266
267
268
269
271
271
272
273
273

Sunday 21

New Moon 2%

06:21

18:48

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: 06:55, Set: 19:12, Transit: 13:02. Moon - Rise: 06:21, Set: 18:48. Civil Dark: 19:47 - 06:20. Nautical Dark: 20:28 - 05:39. Astro Dark: 21:12 - 04:55

Total Clouds (% Sky Obscured)

100
100
100
94
96
100
86
70
96
51
53
32
74
86
95
100
94
100
97
96
94
93
96
98

Low Clouds (% Sky Obscured)

79
82
67
85
84
89
65
63
91
28
53
32
68
73
89
100
88
92
59
60
62
62
59
61

Medium Clouds (% Sky Obscured)

88
99
85
84
92
100
75
38
30
31
8
4
0
12
22
32
94
98
72
92
90
88
91
95

High Clouds (% Sky Obscured)

50
100
97
0
0
0
0
0
0
0
0
0
0
0
1
0
1
3
54
45
37
19
20
15

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
7
9
9
9
9
9
9
9
9
9
9
9
8
4
3
4

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

Precipitation Probability (%)

43
92
65
57
95
95
95
33
17
7
8
24
37
32
31
37
49
75
65
76
87
93
95
95

Precipitation Amount (mm)

0
1
0.3
0.3
0.6
0.8
1.8
0
0
0
0
0
0
0
0
0
0
0.4
0
0.2
0.5
0.6
0.6
0.9

Wind Speed/Direction (mph)

7
9
6
9
8
6
10
10
11
10
12
14
15
15
15
14
19
18
14
13
12
12
12
13

Chance of Frost

Temperature (°C)

17
18
18
19
19
18
16
14
14
14
13
13
13
13
13
13
12
12
12
11
11
11
11
11

Feels Like (°C)

16
16
17
17
17
16
14
13
10
11
12
12
10
9
8
8
7
6
6
6
7
7
7
7

Dew Point (°C)

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

Relative Humidity (%)

74
66
67
58
55
62
66
67
64
71
77
76
75
77
75
71
69
67
66
70
73
84
91
93

Pressure (mb)

1008
1007
1006
1005
1004
1003
1002
1002
1002
1002
1002
1001
1001
1000
1000
1000
1001
1003
1004
1005
1006
1007
1008
1009

Ozone (du)

272
273
272
273
274
279
282
286
290
295
296
298
303
309
310
314
313
311
310
310
310
311
311
311

Monday 22

Waxing Crescent 0%

07:36

18:56

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 OK
02 OK
03 Bad
04 Bad
05 Bad
06 OK
07 OK
08 OK
09 OK
10 OK
11 Bad

Sun - Rise: 06:56, Set: 19:09, Transit: 13:02. Moon - Rise: 07:36, Set: 18:56. Civil Dark: 19:44 - 06:22. Nautical Dark: 20:25 - 05:41. Astro Dark: 21:09 - 04:58

Total Clouds (% Sky Obscured)

100
95
89
80
63
48
24
12
13
20
30
50
45
40
45
50
55
50
35
40
42
42
46
50

Low Clouds (% Sky Obscured)

60
59
57
54
41
29
20
12
13
20
25
25
20
25
25
30
30
35
35
40
33
36
46
49

Medium Clouds (% Sky Obscured)

100
88
75
63
53
48
24
12
13
20
27
21
20
18
3
8
23
34
35
40
3
4
0
0

High Clouds (% Sky Obscured)

20
15
15
4
7
17
24
12
13
20
29
40
40
35
16
1
2
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

3
2
5
6
4
3
9
6
6
9
7
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

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

Precipitation Probability (%)

85
58
45
49
67
50
30
52
32
39
42
18
6
4
4
4
6
5
3
3
2
2
0
0

Precipitation Amount (mm)

0.8
0.3
0
0
0.5
0.3
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

11
11
11
11
11
11
11
10
10
10
10
9
9
9
8
8
8
8
8
8
8
9
11
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
95
93
93
95
96
95
90
91
90
91
87
85
84
82
78
77
73
69
66
68
67
64
58

Pressure (mb)

1010
1010
1011
1011
1012
1012
1013
1014
1015
1016
1016
1017
1018
1018
1019
1019
1020
1020
1021
1021
1022
1023
1023
1023

Ozone (du)

311
311
312
313
313
313
313
314
315
314
313
314
315
316
317
317
317
318
318
317
316
315
316
315

Tuesday 23

Waxing Crescent 1%

08:51

19:04

12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 OK
19 OK
20 OK
21 OK
22 OK
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: 06:58, Set: 19:07, Transit: 13:02. Moon - Rise: 08:51, Set: 19:04. Civil Dark: 19:42 - 06:24. Nautical Dark: 20:23 - 05:43. Astro Dark: 21:06 - 05:00

Total Clouds (% Sky Obscured)

68
73
78
83
74
64
36
22
20
23
30
61
98
100
100
100
100
100
97
96
97
100
97
95

Low Clouds (% Sky Obscured)

68
73
78
83
72
64
33
19
17
18
10
19
30
28
26
23
16
10
11
35
51
71
73
76

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
1
2
0
0
25
45
52
45
47
45
48
42
41
34
33
26
21
25

High Clouds (% Sky Obscured)

0
0
2
2
12
17
2
2
1
1
28
58
96
96
97
97
95
89
77
72
66
66
66
65

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
Very Light Rain
Light Rain

Precipitation Probability (%)

0
0
1
3
1
0
0
0
0
0
0
0
0
1
1
2
6
8
10
24
34
41
57
67

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
0.2
0.4

Wind Speed/Direction (mph)

9
8
7
8
7
6
6
4
4
4
4
3
2
2
1
2
2
1
1
1
2
3
4
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
4
5
4
5
4
3
3
3
3
3
4
4
4
3
3
3
4
4
4
5
5
5
4

Relative Humidity (%)

55
54
57
54
56
54
53
59
64
65
68
75
77
75
77
78
81
79
78
77
75
73
72
65

Pressure (mb)

1023
1023
1023
1023
1023
1023
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1025
1025
1025

Ozone (du)

313
311
309
309
308
308
308
308
307
305
304
302
302
302
301
301
301
300
300
299
298
298
298
298

Wednesday 24

Waxing Crescent 3%

10:06

19:13

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 OK
10 Bad
11 Bad

Sun - Rise: 07:00, Set: 19:05, Transit: 13:01. Moon - Rise: 10:06, Set: 19:13. Civil Dark: 19:39 - 06:25. Nautical Dark: 20:20 - 05:44. Astro Dark: 21:03 - 05:02

Total Clouds (% Sky Obscured)

94
97
97
96
92
91
90
86
82
82
87
95
100
100
100
100
98
96
96
81
65
42
38
34

Low Clouds (% Sky Obscured)

77
75
76
79
79
82
90
65
36
8
20
32
45
37
29
26
35
41
48
42
33
26
31
34

Medium Clouds (% Sky Obscured)

15
16
12
9
4
5
10
8
14
15
39
62
80
83
81
79
81
73
65
60
55
42
35
34

High Clouds (% Sky Obscured)

80
54
28
2
1
1
0
15
31
44
58
71
80
75
75
80
75
70
65
70
61
42
38
34

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

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

Precipitation Probability (%)

76
74
67
58
52
47
43
35
26
7
10
9
3
8
9
5
7
5
1
7
8
5
17
22

Precipitation Amount (mm)

0.5
0.5
0.4
0.2
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
7
7
8
7
7
6
5
5
4
3
4
4
4
4
4
4
4
4
5
5
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
7
11
11
11
12
12
14
10
10
10
10
10
10
8
8
8
8
8
8
6
6
7
7

Dew Point (°C)

4
4
4
4
4
5
5
6
6
6
6
6
6
6
6
6
6
6
5
5
6
6
6
6

Relative Humidity (%)

60
56
55
53
53
58
64
71
73
78
82
84
84
85
85
87
87
88
87
87
81
74
70
66

Pressure (mb)

1025
1025
1025
1025
1024
1024
1025
1025
1025
1025
1025
1025
1026
1026
1026
1025
1025
1025
1025
1026
1026
1026
1026
1026

Ozone (du)

298
298
298
298
298
297
296
296
295
295
295
295
295
295
295
294
294
294
293
293
293
293
293
293

Forecast for High Legh, Cheshire East, United Kingdom (53.35,-2.45)

Generated: 18/09/25 10:52:50. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+1.00