Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 3

Waning Gibbous 60%

21:40

14:30

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: 06:15, Set: 19:42, Transit: 12:59. Moon - Rise: 21:40, Set: 14:30. Civil Dark: 20:18 - 05:42. Nautical Dark: 21:01 - 04:59. Astro Dark: 21:48 - 04:12

Total Clouds (% Sky Obscured)

80
85
88
91
100
100
95
100
91
100
100
98
86
49
92
75
95
100
89
93
100
100
100
100

Low Clouds (% Sky Obscured)

34
37
38
34
51
64
46
52
19
28
32
24
18
18
0
7
21
59
35
25
37
78
96
91

Medium Clouds (% Sky Obscured)

47
33
88
70
19
54
90
95
76
54
90
14
11
0
4
11
34
40
89
93
100
99
98
100

High Clouds (% Sky Obscured)

80
85
88
88
100
96
79
100
69
100
100
92
67
28
84
35
76
100
15
24
96
100
79
89

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
6

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
Light Rain
None

Precipitation Probability (%)

0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
0
0
1
4
5
16
44
93
94

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
0.4
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
19
19
19
20
20
21
22
23
24
24
24
23
22
21
20
19
18
18
18
18
18
18
18

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
82
82
77
74
70
67
63
55
50
47
47
52
57
64
68
72
74
73
71
70
76
88
82

Pressure (mb)

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

Ozone (du)

300
300
301
299
298
297
296
295
295
294
294
294
295
293
292
292
291
290
290
290
290
292
292
292

Friday 4

Third Quarter 51%

22:26

15:50

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

Sun - Rise: 06:17, Set: 19:40, Transit: 12:59. Moon - Rise: 22:26, Set: 15:50. Civil Dark: 20:15 - 05:44. Nautical Dark: 20:58 - 05:01. Astro Dark: 21:45 - 04:15

Total Clouds (% Sky Obscured)

100
100
100
100
99
100
97
100
99
100
100
100
100
100
100
32
3
22
29
31
48
64
82
58

Low Clouds (% Sky Obscured)

93
92
54
47
50
45
31
33
33
29
23
4
7
0
0
0
0
0
0
0
0
5
13
13

Medium Clouds (% Sky Obscured)

98
100
92
85
87
99
97
100
98
100
100
96
100
30
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
79
100
75
96
78
98
100
100
100
100
100
28
2
16
16
20
32
47
82
58

ISS Passover

Visibility (miles)

8
4
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
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
77
18
8
3
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.5
1.5
2.1
0.6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

20
19
16
16
15
15
16
17
17
17
17
15
14
12
10
10
9
9
10
10
10
10
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
17
16
16
15
15
14
14
14
14
14
14
14
13
13
12
12
13
11
11
10
10
9
10

Dew Point (°C)

16
18
15
15
13
11
9
7
5
5
5
6
7
7
8
8
8
8
9
9
9
9
9
10

Relative Humidity (%)

82
89
78
75
67
58
50
42
37
38
39
43
46
50
55
59
63
68
71
74
76
79
81
86

Pressure (mb)

1009
1009
1010
1011
1011
1012
1012
1013
1013
1013
1013
1014
1014
1015
1016
1017
1017
1018
1018
1019
1019
1019
1020
1020

Ozone (du)

294
295
296
297
298
299
300
300
300
302
305
306
307
311
315
320
322
323
321
320
315
311
310
308

Saturday 5

Waning Crescent 39%

23:33

16:56

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

Sun - Rise: 06:19, Set: 19:38, Transit: 12:58. Moon - Rise: 23:33, Set: 16:56. Civil Dark: 20:13 - 05:46. Nautical Dark: 20:55 - 05:03. Astro Dark: 21:42 - 04:17

Total Clouds (% Sky Obscured)

49
48
27
83
53
52
49
39
44
54
61
42
43
46
78
40
43
27
22
21
19
17
42
43

Low Clouds (% Sky Obscured)

16
8
15
23
31
21
24
26
19
21
18
12
23
22
14
0
0
0
0
5
10
15
9
4

Medium Clouds (% Sky Obscured)

0
0
0
0
0
4
1
1
0
6
3
8
6
7
12
5
4
7
6
6
3
0
4
6

High Clouds (% Sky Obscured)

34
37
17
68
40
44
37
12
37
34
21
4
4
1
43
31
32
0
13
9
7
4
30
30

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
88
83
70
61
53
49
46
42
40
39
38
40
47
50
51
53
54
57
59
61
64
68
71

Pressure (mb)

1021
1022
1022
1023
1023
1024
1024
1024
1024
1024
1024
1023
1023
1023
1024
1024
1024
1024
1024
1024
1023
1023
1022
1022

Ozone (du)

305
304
303
301
299
298
297
295
293
292
290
289
289
289
288
287
288
289
290
290
290
290
290
290

Sunday 6

Waning Crescent 28%

00:55

17:42

06 OK
07 OK
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 OK
05 OK

Sun - Rise: 06:20, Set: 19:35, Transit: 12:58. Moon - Rise: 00:55, Set: 17:42. Civil Dark: 20:10 - 05:47. Nautical Dark: 20:53 - 05:05. Astro Dark: 21:39 - 04:19

Total Clouds (% Sky Obscured)

45
45
45
44
60
76
86
83
100
100
100
99
99
91
84
79
58
58
59
57
49
53
44
48

Low Clouds (% Sky Obscured)

0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
16
29
47
42
36
36
40
45

Medium Clouds (% Sky Obscured)

45
45
45
44
60
60
49
8
2
2
7
8
99
90
84
79
16
14
8
7
10
38
7
2

High Clouds (% Sky Obscured)

25
20
11
6
50
70
80
81
100
100
99
98
97
79
63
27
16
9
2
2
1
0
0
4

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
11
17
16
49
64
62
37
17
6
15
11
2
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.3
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
13
15
17
19
21
22
24
25
26
26
25
24
22
21
20
19
19
18
18
18
17
17
16

Feels Like (°C)

11
11
13
14
16
17
19
21
22
22
22
22
21
19
18
18
17
18
18
18
17
16
16
17

Dew Point (°C)

8
7
9
9
8
8
8
7
7
6
7
6
6
7
8
10
9
8
8
8
9
10
13
14

Relative Humidity (%)

70
68
67
60
49
43
38
33
31
29
29
29
31
37
45
51
51
50
50
52
55
64
77
87

Pressure (mb)

1022
1021
1021
1021
1020
1020
1019
1018
1017
1016
1015
1015
1015
1014
1014
1015
1014
1014
1014
1013
1013
1013
1013
1013

Ozone (du)

290
290
290
289
290
290
290
288
288
290
291
292
294
295
297
300
303
303
302
304
306
307
306
307

Monday 7

Waning Crescent 18%

02:25

18:13

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: 06:22, Set: 19:33, Transit: 12:58. Moon - Rise: 02:25, Set: 18:13. Civil Dark: 20:08 - 05:49. Nautical Dark: 20:50 - 05:07. Astro Dark: 21:36 - 04:22

Total Clouds (% Sky Obscured)

74
84
92
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
77
51

Low Clouds (% Sky Obscured)

47
54
65
72
64
51
48
34
26
15
14
12
11
18
11
6
19
32
45
50
55
63
49
34

Medium Clouds (% Sky Obscured)

0
3
6
9
6
96
100
94
100
100
99
99
100
96
98
99
99
100
100
90
79
67
46
26

High Clouds (% Sky Obscured)

45
57
78
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
98
98
66
33

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
Very Light Rain
Very Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

2
2
0
0
5
8
2
0
0
0
0
0
0
0
0
0
10
26
45
63
66
61
53
48

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

16
15
15
14
12
12
11
10
8
6
6
7
7
8
10
10
9
10
9
9
10
10
9
9

Relative Humidity (%)

96
95
85
74
63
58
55
50
43
37
38
40
44
52
55
59
62
64
65
66
68
69
69
69

Pressure (mb)

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

Ozone (du)

307
307
305
304
302
301
301
300
299
300
299
298
298
297
298
298
299
300
302
304
308
312
316
319

Tuesday 8

Waning Crescent 10%

03:55

18:35

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

Sun - Rise: 06:24, Set: 19:31, Transit: 12:57. Moon - Rise: 03:55, Set: 18:35. Civil Dark: 20:05 - 05:51. Nautical Dark: 20:47 - 05:09. Astro Dark: 21:33 - 04:24

Total Clouds (% Sky Obscured)

31
32
28
28
29
30
28
41
49
58
58
60
61
49
33
16
12
7
1
17
33
50
58
73

Low Clouds (% Sky Obscured)

23
19
15
14
12
11
14
12
13
15
34
52
61
49
29
9
7
5
1
6
14
24
26
31

Medium Clouds (% Sky Obscured)

5
0
0
0
0
0
0
0
2
5
4
2
1
0
0
0
0
0
0
13
19
27
33
41

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
4
8
15
28
36
44
30
16
2
1
0
0
5
9
14
34
55

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 (%)

34
36
25
10
8
3
0
1
1
0
0
0
0
3
5
1
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
15
16
17
18
19
18
18
18
17
15
14
13
12
11
11
11
11
11
11
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
70
63
57
52
46
41
37
38
38
39
42
45
50
52
55
58
61
63
66
70
72
76
77

Pressure (mb)

1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1011
1011

Ozone (du)

321
324
333
341
350
347
344
341
341
342
342
344
345
347
346
345
345
344
343
342
344
346
348
347

Wednesday 9

Waning Crescent 4%

05:23

18:51

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

Sun - Rise: 06:25, Set: 19:28, Transit: 12:57. Moon - Rise: 05:23, Set: 18:51. Civil Dark: 20:03 - 05:52. Nautical Dark: 20:45 - 05:11. Astro Dark: 21:30 - 04:26

Total Clouds (% Sky Obscured)

86
74
58
46
65
81
97
88
81
72
64
56
49
58
68
80
73
67
63

Low Clouds (% Sky Obscured)

35
36
37
38
41
43
45
44
43
42
41
37
35
38
41
42
30
19
6

Medium Clouds (% Sky Obscured)

45
27
10
0
7
10
15
17
14
10
9
4
0
2
3
4
3
1
0

High Clouds (% Sky Obscured)

75
57
30
0
1
3
4
3
1
0
0
0
0
3
8
15
25
32
35

ISS Passover

Visibility (miles)

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

Precipitation Type

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
4
3
3
18
24
28
26
21
11
6
4
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

Wind Speed/Direction (mph)

11
12
13
14
16
16
16
17
16
15
15
14
13
12
11
10
9
8
7

Chance of Frost

Temperature (°C)

11
10
12
13
14
15
16
17
17
17
18
17
17
16
15
14
13
13
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
81
72
63
56
53
51
48
44
41
37
39
42
45
49
54
60
61
61

Pressure (mb)

1012
1012
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1012
1012
1012
1013
1013
1013
1013

Ozone (du)

345
343
340
337
334
335
335
335
331
328
324
322
319
316
313
310
307
306
304

Forecast for Bourn, Cambridgeshire, United Kingdom (52.20,-0.05)

Generated: 03/09/26 06:57:55. Forecast: 03/09/26 to 09/09/26. Timezone: UTC+1.00