Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 18

Waning Crescent 3%

06:55

14:51

10 OK
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: 07:29, Set: 16:08, Transit: 11:48. Moon - Rise: 06:55, Set: 14:51. Civil Dark: 16:45 - 06:51. Nautical Dark: 17:27 - 06:10. Astro Dark: 18:06 - 05:30

Total Clouds (% Sky Obscured)

47
58
82
87
100
98
86
74
57
63
62
63
55
83
70
82
100
100
100
100
95
99
91
96

Low Clouds (% Sky Obscured)

33
33
39
54
91
79
59
57
45
38
46
58
53
55
67
78
89
91
84
65
90
99
80
83

Medium Clouds (% Sky Obscured)

2
26
39
44
50
41
56
50
11
63
50
21
2
23
2
2
30
20
21
24
23
12
91
96

High 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

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
9
9
0
0
0

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

Precipitation Probability (%)

0
1
1
5
36
45
22
7
2
14
2
0
3
22
6
20
46
72
44
24
56
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0.3
0.9
0
0
0
0.8
1.4
1.1

Wind Speed/Direction (mph)

5
7
10
11
10
9
9
10
10
10
10
10
11
11
11
10
10
11
11
14
14
16
16
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-2
0
1
1
1
1
2
0
0
1
0
1
-0
-0
-1
-1
-1
-2
-3
-3
-4
-4
-5
-6

Dew Point (°C)

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

Relative Humidity (%)

79
80
79
78
79
80
88
85
89
93
93
93
93
86
88
91
86
83
91
85
85
98
96
98

Pressure (mb)

1020
1019
1018
1016
1015
1014
1013
1012
1012
1011
1011
1010
1009
1008
1008
1008
1007
1007
1007
1007
1007
1007
1008
1009

Ozone (du)

275
275
277
275
275
274
273
271
271
271
272
277
279
289
299
301
296
295
298
303
305
317
326
337

Wednesday 19

Waning Crescent 1%

08:08

15:08

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

Sun - Rise: 07:31, Set: 16:07, Transit: 11:48. Moon - Rise: 08:08, Set: 15:08. Civil Dark: 16:44 - 06:53. Nautical Dark: 17:26 - 06:12. Astro Dark: 18:05 - 05:32

Total Clouds (% Sky Obscured)

96
88
79
83
93
73
51
25
39
47
36
23
12
5
6
6
13
15
5
5
6
7
2
1

Low Clouds (% Sky Obscured)

78
48
63
67
74
59
49
10
2
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0

Medium Clouds (% Sky Obscured)

91
88
74
82
92
48
51
25
39
47
36
21
12
5
6
6
13
15
5
5
6
7
2
1

High Clouds (% Sky Obscured)

2
70
70
32
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

8
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 (%)

37
7
1
0
1
0
0
0
0
0
2
2
2
12
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)

18
19
18
18
18
16
16
15
14
13
13
12
12
12
12
11
11
11
10
10
9
9
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

1
1
2
2
2
1
1
-1
-2
-2
-3
-3
-3
-4
-4
-4
-5
-5
-5
-5
-5
-5
-5
-5

Relative Humidity (%)

86
86
88
89
91
89
88
84
84
86
86
84
84
83
83
81
81
79
79
78
79
79
79
78

Pressure (mb)

1009
1010
1010
1011
1011
1012
1012
1013
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016

Ozone (du)

337
327
318
317
323
328
328
325
321
317
320
322
322
322
322
318
319
316
313
312
317
316
315
314

Thursday 20

New Moon 0%

09:18

15:31

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

Sun - Rise: 07:32, Set: 16:05, Transit: 11:48. Moon - Rise: 09:18, Set: 15:31. Civil Dark: 16:43 - 06:54. Nautical Dark: 17:25 - 06:13. Astro Dark: 18:05 - 05:33

Total Clouds (% Sky Obscured)

0
0
3
13
47
20
27
56
23
17
17
20
29
46
36
48
51
60
62
64
59
54
49
45

Low Clouds (% Sky Obscured)

0
0
0
0
4
0
13
47
23
17
17
20
29
46
36
48
51
60
62
49
38
28
20
14

Medium Clouds (% Sky Obscured)

0
0
3
13
35
16
0
0
3
0
0
4
4
3
0
0
0
1
0
3
17
54
36
45

High Clouds (% Sky Obscured)

0
0
1
3
1
0
0
0
0
0
0
0
0
0
0
0
3
4
9
17
25
15
15
10

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
3
0
4
22
4
12
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
12
13
13
12
12
12
10
10
11
11
10
9
9
9
9
9
9
8
8
8
7
6
5

Chance of Frost

Temperature (°C)

-1
1
2
2
2
2
1
1
0
0
-0
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-0

Feels Like (°C)

-5
-3
-3
-3
-4
-4
-5
-5
-5
-4
-4
-4
-4
-3
-3
-3
-3
-3
-3
-3
-4
-5
-5
-4

Dew Point (°C)

-5
-4
-3
-3
-2
-1
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2

Relative Humidity (%)

74
73
71
72
74
79
80
81
86
89
89
89
91
92
94
92
92
94
92
92
91
89
89
87

Pressure (mb)

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

Ozone (du)

315
320
320
316
312
310
309
309
312
313
313
313
312
310
308
305
303
298
295
294
293
294
295
294

Friday 21

Waxing Crescent 2%

No Rise

16:04

10 OK
11 OK
12 OK
13 OK
14 OK
15 OK
16 OK
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: 07:34, Set: 16:04, Transit: 11:48. Moon - Rise: No Rise, Set: 16:04. Civil Dark: 16:42 - 06:56. Nautical Dark: 17:24 - 06:14. Astro Dark: 18:04 - 05:34

Total Clouds (% Sky Obscured)

40
30
27
40
43
42
45
49
64
83
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

10
6
4
3
0
0
0
3
9
2
1
4
9
9
38
56
74
84
92
100
98
96
94
92

Medium Clouds (% Sky Obscured)

40
3
0
29
43
42
41
49
64
83
71
64
100
100
100
100
100
100
100
100
100
100
42
46

High Clouds (% Sky Obscured)

6
11
12
16
22
22
27
32
54
77
100
100
100
100
100
100
100
100
77
96
73
90
100
92

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
4
4
9
9
5
4
2
3
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
Very Light Rain
Light Rain
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
8
45
55
66
41
56
80
95
95
95
91
75

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.5
0
0
0.4
0.8
0.8
1
0.7
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

1
2
3
3
3
3
2
1
1
1
1
1
1
1
2
2
2
3
3
4
4
4
5
5

Feels Like (°C)

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

Dew Point (°C)

-2
-2
-2
-2
-1
-0
-0
-1
-1
-1
-1
-0
-1
-1
1
1
2
2
3
3
4
4
4
5

Relative Humidity (%)

81
77
73
71
76
80
85
83
86
89
91
93
88
84
93
94
96
94
94
96
96
98
98
98

Pressure (mb)

1026
1026
1026
1026
1025
1025
1025
1025
1024
1024
1023
1023
1022
1021
1020
1019
1018
1017
1016
1015
1014
1013
1013
1013

Ozone (du)

295
294
293
291
286
283
280
276
275
275
270
263
259
266
271
275
281
286
286
285
288
291
293
293

Saturday 22

Waxing Crescent 5%

10:20

16:48

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: 07:36, Set: 16:03, Transit: 11:49. Moon - Rise: 10:20, Set: 16:48. Civil Dark: 16:41 - 06:57. Nautical Dark: 17:23 - 06:16. Astro Dark: 18:03 - 05:36

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
97
95
92
95
97
100
93
86
78
70

Low Clouds (% Sky Obscured)

90
89
90
83
90
88
87
84
85
89
89
91
91
90
87
85
82
88
94
100
93
86
78
70

Medium Clouds (% Sky Obscured)

53
83
100
100
100
100
100
100
100
87
100
95
79
67
47
35
22
33
42
55
43
23
0
0

High Clouds (% Sky Obscured)

84
76
82
87
93
92
91
90
67
47
30
30
6
1
1
1
1
1
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
5
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

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

Precipitation Probability (%)

60
45
38
33
22
20
14
9
11
10
7
32
47
60
87
68
28
30
31
23
24
17
7
8

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
2
2
3
2
2
2
2
1
1
1
1
1
2
3
2
2
2
1
1
1
1
1
1

Dew Point (°C)

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

Relative Humidity (%)

98
98
96
91
90
91
94
94
96
96
96
96
96
96
96
96
94
93
96
96
96
96
93
93

Pressure (mb)

1012
1012
1011
1010
1010
1010
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1008
1008
1008
1008
1008
1008
1008
1008

Ozone (du)

294
295
294
294
292
291
290
289
288
288
286
285
283
281
279
278
276
274
273
272
272
272
273
273

Sunday 23

Waxing Crescent 10%

11:09

17:46

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: 07:37, Set: 16:02, Transit: 11:49. Moon - Rise: 11:09, Set: 17:46. Civil Dark: 16:40 - 06:59. Nautical Dark: 17:22 - 06:17. Astro Dark: 18:02 - 05:37

Total Clouds (% Sky Obscured)

62
54
57
60
63
76
88
100
100
100
100
96
91
84
89
95
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

62
54
54
53
53
46
41
38
41
48
55
57
60
59
54
48
43
48
54
60
73
87
100
95

Medium Clouds (% Sky Obscured)

0
0
18
32
42
63
82
100
100
100
100
96
91
81
81
90
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

0
0
9
14
21
12
9
5
5
5
5
5
5
5
37
68
100
100
100
100
100
100
100
85

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
4
2
2
3
3
5
6
7

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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

7
1
0
0
0
23
38
49
51
43
25
19
12
2
24
37
50
77
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
1
1.5
1.5
1.2
0.7
0.7

Wind Speed/Direction (mph)

5
6
7
6
5
5
4
3
3
2
3
3
3
3
3
3
4
5
8
11
15
15
15
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

1
1
1
4
3
3
3
2
2
1
1
1
1
1
1
1
2
2
-1
-1
-2
-1
-3
-5

Dew Point (°C)

4
4
4
4
4
4
4
4
4
3
3
3
3
3
3
3
3
4
2
2
2
2
1
1

Relative Humidity (%)

90
86
84
85
85
85
90
93
96
96
98
96
96
98
98
98
98
100
96
96
94
94
93
91

Pressure (mb)

1008
1008
1008
1007
1007
1006
1006
1005
1005
1004
1004
1003
1003
1002
1001
1000
998
997
995
994
992
991
991
990

Ozone (du)

275
277
279
277
275
272
272
272
272
270
269
267
267
267
267
267
268
269
270
271
273
277
280
284

Monday 24

Waxing Crescent 17%

11:46

18:55

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: 07:39, Set: 16:01, Transit: 11:49. Moon - Rise: 11:46, Set: 18:55. Civil Dark: 16:40 - 07:00. Nautical Dark: 17:21 - 06:18. Astro Dark: 18:01 - 05:38

Total Clouds (% Sky Obscured)

100
100
99
98
98
93
89
85
87
89
92
85
79
74
80
86
93
94
95
95

Low Clouds (% Sky Obscured)

89
85
84
85
84
81
81
80
76
74
71
75
75
74
77
84
92
88
84
83

Medium Clouds (% Sky Obscured)

100
100
85
70
54
46
40
32
30
26
13
17
28
37
42
48
53
46
50
56

High Clouds (% Sky Obscured)

70
54
50
47
43
35
17
0
0
0
0
0
0
0
0
0
0
2
3
6

ISS Passover

Visibility (miles)

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

Precipitation Type

Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
95
95
95
84
39
45
47
45
39
36
36
44
45
34
30
30
32

Precipitation Amount (mm)

1
1.5
1.3
1.2
1.8
1.2
0.6
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

2
3
4
4
3
3
3
3
3
3
3
3
3
3
3
3
3
2
3
3

Relative Humidity (%)

93
94
94
93
89
88
88
89
91
89
88
86
86
86
88
89
89
91
93
93

Pressure (mb)

989
988
987
987
987
987
988
988
988
989
989
990
991
991
992
993
994
995
997
998

Ozone (du)

289
294
299
303
306
309
312
314
317
317
317
318
313
309
305
305
304
303
302
300

Forecast for Great Missenden, Buckinghamshire, United Kingdom (51.70,-0.70)

Generated: 18/11/25 09:08:12. Forecast: 18/11/25 to 24/11/25. Timezone: UTC+0.00