Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 5

Waning Gibbous 98%

15:45

09:13

06 OK
07 Bad
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

Sun - Rise: 08:00, Set: 15:55, Transit: 11:58. Moon - Rise: 15:45, Set: 09:13. Civil Dark: 16:35 - 07:20. Nautical Dark: 17:19 - 06:36. Astro Dark: 18:00 - 05:56

Total Clouds (% Sky Obscured)

38
42
64
100
100
100
100
100
100
100
100
100
100
87
96
99
99
97
92
100
100
100
100
100

Low Clouds (% Sky Obscured)

28
24
9
14
28
35
47
49
70
75
100
91
100
79
63
86
63
56
65
61
79
85
74
92

Medium Clouds (% Sky Obscured)

38
42
64
100
100
100
93
99
100
100
100
100
74
15
85
46
34
86
78
100
100
100
98
90

High Clouds (% Sky Obscured)

38
42
64
100
75
100
100
85
100
50
100
100
13
1
1
39
39
5
0
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
2
9
3
9
6
9
9
9
8
9
3
5
2
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0

Precipitation Type

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

Precipitation Probability (%)

0
0
0
0
0
1
15
7
40
95
95
95
95
70
75
70
59
35
35
55
95
82
74
65

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
1
0.8
1
0.4
0.3
0.6
0.3
0
0
0
0
1.3
0.5
0.3
0.3

Wind Speed/Direction (mph)

5
5
5
7
9
11
13
16
18
20
24
27
27
28
20
20
19
19
18
17
19
20
20
20

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-1
-1
-1
0
1
2
2
2
2
1
-1
-2
-2
-2
2
2
3
4
4
4
4
3
3
4

Dew Point (°C)

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

Relative Humidity (%)

91
88
89
89
85
81
79
81
77
78
87
84
88
87
90
82
81
80
84
81
87
87
91
90

Pressure (mb)

1005
1005
1005
1005
1004
1004
1002
1001
999
998
996
995
993
992
991
990
990
990
990
990
989
989
989
989

Ozone (du)

335
325
323
321
318
312
309
304
297
295
295
296
300
298
298
298
297
297
296
293
291
294
293
289

Saturday 6

Waning Gibbous 93%

16:58

10:21

06 Bad
07 Bad
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 OK
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 08:01, Set: 15:55, Transit: 11:58. Moon - Rise: 16:58, Set: 10:21. Civil Dark: 16:35 - 07:21. Nautical Dark: 17:19 - 06:37. Astro Dark: 18:00 - 05:57

Total Clouds (% Sky Obscured)

96
100
100
100
100
100
100
97
54
85
50
52
39
52
83
65
72
35
70
100
100
57
100
99

Low Clouds (% Sky Obscured)

92
82
83
78
82
78
88
78
52
75
48
50
39
52
82
62
37
31
25
35
39
37
32
49

Medium Clouds (% Sky Obscured)

88
58
86
95
100
100
92
83
3
53
35
35
39
0
0
0
0
0
31
60
22
42
49
80

High Clouds (% Sky Obscured)

78
97
78
100
100
100
89
42
1
14
35
18
1
0
0
8
29
35
22
100
93
41
100
96

ISS Passover

Visibility (miles)

9
9
9
9
9
8
9
7
9
9
9
7
3
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
Very Light Rain
None
None
None
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

27
18
31
49
46
39
42
56
24
29
39
73
47
4
3
1
1
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.2
0
0
0
0.6
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

21
20
19
19
20
20
21
21
21
20
19
19
17
19
19
17
17
14
12
11
9
7
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
7
7
8
8
8
8
8
8
7
8
8
8
7
6
6
6
6
6
6
6
6
6
6

Relative Humidity (%)

82
84
84
85
84
83
81
80
80
77
83
84
88
84
82
82
84
84
88
90
91
91
91
94

Pressure (mb)

990
990
991
991
991
992
992
993
994
994
995
996
997
998
999
1000
1001
1001
1002
1002
1003
1003
1003
1003

Ozone (du)

286
284
282
284
283
283
283
281
281
281
282
284
285
290
291
289
288
291
291
292
287
285
286
285

Sunday 7

Waning Gibbous 86%

18:25

11:06

06 Bad
07 Bad
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

Sun - Rise: 08:02, Set: 15:54, Transit: 11:58. Moon - Rise: 18:25, Set: 11:06. Civil Dark: 16:35 - 07:22. Nautical Dark: 17:19 - 06:38. Astro Dark: 18:00 - 05:58

Total Clouds (% Sky Obscured)

72
100
99
100
100
100
100
100
100
100
100
100
97
100
89
66
59
65
51
44
74
71
70
71

Low Clouds (% Sky Obscured)

41
100
98
93
88
100
92
94
100
100
80
70
77
79
46
24
35
35
38
38
38
39
53
57

Medium Clouds (% Sky Obscured)

72
85
90
82
100
100
100
100
100
95
68
29
27
35
31
32
29
40
28
14
3
2
4
60

High Clouds (% Sky Obscured)

51
77
89
100
100
100
100
95
100
67
100
92
44
45
0
0
1
3
2
3
20
15
15
15

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
25
24
13
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
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
6
21
52
66
89
95
95
85
46
15
9
9
22
30
17
1
0
2
3
2
2
1
0

Precipitation Amount (mm)

0
0
0
0
0.3
0.5
0.5
0.6
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
5
5
6
9
12
14
15
11
12
14
16
17
18
20
18
15
13
14
11
11
12
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
94
93
93
95
95
95
95
96
93
92
93
95
95
81
80
81
84
84
87
91
93
95
93

Pressure (mb)

1003
1002
1002
1002
1001
1000
998
997
996
995
995
994
995
996
997
999
1000
1001
1002
1002
1003
1003
1003
1004

Ozone (du)

285
286
286
287
286
288
288
288
294
294
294
298
303
308
310
312
313
308
307
307
306
307
312
319

Monday 8

Waning Gibbous 77%

19:55

11:35

06 Bad
07 Bad
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

Sun - Rise: 08:04, Set: 15:54, Transit: 11:59. Moon - Rise: 19:55, Set: 11:35. Civil Dark: 16:35 - 07:23. Nautical Dark: 17:18 - 06:39. Astro Dark: 18:00 - 05:59

Total Clouds (% Sky Obscured)

77
77
77
83
91
100
100
99
99
99
99
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

56
60
45
44
52
57
52
52
50
51
52
55
49
44
37
45
52
52
64
74
81
82
83
84

Medium Clouds (% Sky Obscured)

38
29
1
9
49
29
29
73
95
97
68
87
67
68
85
90
95
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

11
6
7
41
72
100
75
50
30
58
82
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
9
8
9
8
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
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

1
2
0
0
0
0
5
9
8
24
31
39
37
30
16
20
42
37
44
64
82
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.6
0.9
1.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
91
90
88
87
86
87
87
88
93
95
93
93
91
93
95
95
95
92
93
92
90
93

Pressure (mb)

1004
1004
1005
1006
1006
1006
1007
1007
1007
1008
1008
1008
1008
1008
1008
1008
1007
1007
1006
1006
1005
1004
1002
1001

Ozone (du)

327
333
334
336
341
345
345
343
342
339
340
338
335
334
331
328
325
320
316
311
306
301
299
300

Tuesday 9

Waning Gibbous 67%

21:21

11:54

06 Bad
07 Bad
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

Sun - Rise: 08:05, Set: 15:54, Transit: 11:59. Moon - Rise: 21:21, Set: 11:54. Civil Dark: 16:35 - 07:24. Nautical Dark: 17:18 - 06:40. Astro Dark: 18:00 - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
94
88
83
95
89
83
73
64
56
58
57
59
60
61
62

Low Clouds (% Sky Obscured)

87
89
92
90
89
87
91
95
99
88
77
64
90
80
71
65
62
56
58
57
59
60
61
62

Medium Clouds (% Sky Obscured)

99
98
98
99
99
100
87
75
66
63
65
64
85
75
64
64
61
55
44
31
26
34
43
52

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
83
64
50
78
55
35
33
23
19
11
6
2
6
11
13

ISS Passover

Visibility (miles)

9
4
5
4
5
9
7
9
9
9
9
6
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
Light Rain
Light Rain
Light Rain
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

Precipitation Probability (%)

95
95
95
95
95
95
92
87
75
68
56
39
45
47
48
47
43
34
36
35
29
34
35
4

Precipitation Amount (mm)

1.5
1.5
1.6
1.2
0.7
0.7
0.5
0.5
0.4
0.3
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

15
17
18
18
20
21
21
22
22
23
23
22
22
23
23
25
23
21
19
18
17
15
15
15

Chance of Frost

Temperature (°C)

13
13
13
13
13
14
14
14
14
14
14
14
13
13
13
13
12
11
11
10
10
10
10
10

Feels Like (°C)

10
9
10
9
9
9
9
9
9
9
9
8
8
8
8
8
7
6
6
5
5
4
5
6

Dew Point (°C)

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

Relative Humidity (%)

95
95
93
92
92
90
90
90
90
90
90
90
89
87
87
87
87
87
87
85
85
84
84
85

Pressure (mb)

1000
999
999
998
998
998
997
997
997
996
997
997
997
994
995
996
997
998
999
1000
1000
1001
1001
1001

Ozone (du)

298
294
292
290
289
288
286
284
283
283
283
282
281
281
281
281
281
281
282
282
283
283
284
286

Wednesday 10

Waning Gibbous 57%

22:42

12:08

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

Sun - Rise: 08:06, Set: 15:54, Transit: 12:00. Moon - Rise: 22:42, Set: 12:08. Civil Dark: 16:35 - 07:25. Nautical Dark: 17:18 - 06:41. Astro Dark: 18:00 - 06:00

Total Clouds (% Sky Obscured)

58
55
52
74
80
87
75
66
57
47
36
23
22
19
18
20
25
23
28
31
35
49
66
81

Low Clouds (% Sky Obscured)

58
54
51
63
73
87
74
60
44
38
32
23
22
19
18
20
25
23
28
30
32
29
26
21

Medium Clouds (% Sky Obscured)

46
32
18
39
56
60
45
28
20
14
8
0
0
1
1
2
3
3
3
3
4
3
3
2

High Clouds (% Sky Obscured)

19
24
25
16
8
5
4
2
0
0
0
0
0
0
0
1
1
2
6
10
14
27
43
58

ISS Passover

Visibility (miles)

9
7
5
3
5
7
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

21
36
57
85
95
95
68
29
3
12
6
0
1
1
0
1
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0.2
0.6
0.8
1
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

16
14
13
12
12
14
18
17
16
16
14
13
12
12
12
11
10
10
9
8
8
8
8
8

Chance of Frost

Temperature (°C)

10
10
10
10
10
10
10
10
10
10
10
9
8
8
7
7
7
7
7
6
6
6
6
6

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
88
90
91
90
85
82
81
78
78
81
84
87
87
87
90
90
91
93
93
91
91
93
94

Pressure (mb)

1001
1001
1001
1001
1003
1004
1006
1007
1008
1009
1010
1011
1011
1012
1013
1013
1014
1014
1015
1015
1015
1015
1015
1015

Ozone (du)

287
288
289
290
295
300
306
315
325
335
328
321
314
314
313
312
310
307
305
304
303
302
302
302

Thursday 11

Third Quarter 54%

23:58

12:19

Sun - Rise: 08:07, Set: 15:54, Transit: 12:00. Moon - Rise: 23:58, Set: 12:19. Civil Dark: 16:35 - 07:26. Nautical Dark: 17:18 - 06:42. Astro Dark: 18:00 - 06:01

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Henley in Arden, Warwickshire, United Kingdom (52.29,-1.78)

Generated: 05/12/25 06:03:13. Forecast: 05/12/25 to 11/12/25. Timezone: UTC+0.00