Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 7

Waning Crescent 10%

02:29

18:18

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
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 06:28, Set: 19:37, Transit: 13:01. Moon - Rise: 02:29, Set: 18:18. Civil Dark: 20:12 - 05:53. Nautical Dark: 20:54 - 05:11. Astro Dark: 21:40 - 04:25

Total Clouds (% Sky Obscured)

82
88
91
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
88
82
55

Low Clouds (% Sky Obscured)

19
14
0
28
0
0
18
57
67
72
64
58
65
65
65
71
78
73
67
69
62
49
60
55

Medium Clouds (% Sky Obscured)

28
77
91
96
84
96
100
100
100
100
99
98
99
100
100
100
100
100
99
96
100
88
82
8

High Clouds (% Sky Obscured)

82
88
91
95
100
100
100
100
100
100
100
89
100
100
100
98
100
83
100
100
20
20
7
2

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

5
0
0
0
0
8
50
70
67
79
60
84
86
56
38
35
56
66
54
42
13
6
3
0

Precipitation Amount (mm)

0
0
0
0
0
0
0.3
0.4
0.3
0.5
0.2
0.5
0.5
0
0
0
0
0.3
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

46
45
48
53
61
66
72
79
83
83
84
83
86
92
93
93
92
93
89
83
80
70
65
57

Pressure (mb)

1015
1015
1014
1014
1014
1014
1014
1014
1013
1013
1012
1011
1011
1010
1009
1009
1009
1009
1008
1008
1008
1008
1008
1007

Ozone (du)

298
299
300
301
299
298
297
298
298
298
297
296
297
298
300
302
302
303
306
310
314
320
332
338

Tuesday 8

Waning Crescent 4%

04:00

18:39

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

Sun - Rise: 06:29, Set: 19:35, Transit: 13:01. Moon - Rise: 04:00, Set: 18:39. Civil Dark: 20:09 - 05:55. Nautical Dark: 20:51 - 05:13. Astro Dark: 21:37 - 04:28

Total Clouds (% Sky Obscured)

44
61
29
23
29
28
29
29
19
29
36
53
62
52
30
30
39
58
64
47
52
47
32
56

Low Clouds (% Sky Obscured)

18
50
23
22
27
28
29
29
19
27
32
53
62
52
23
24
34
56
61
22
29
23
20
16

Medium Clouds (% Sky Obscured)

17
10
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
15
13
5
29

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
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
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

43
42
53
61
66
70
72
72
73
76
80
81
72
66
69
77
71
66
63
49
44
42
42
42

Pressure (mb)

1007
1007
1008
1008
1009
1010
1011
1011
1012
1012
1013
1013
1013
1014
1015
1015
1016
1017
1017
1017
1018
1018
1018
1018

Ozone (du)

338
340
341
341
341
343
343
344
344
341
337
336
334
334
333
333
332
331
331
331
332
336
333
329

Wednesday 9

Waning Crescent 1%

05:27

18:55

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

Sun - Rise: 06:31, Set: 19:32, Transit: 13:00. Moon - Rise: 05:27, Set: 18:55. Civil Dark: 20:07 - 05:56. Nautical Dark: 20:49 - 05:15. Astro Dark: 21:34 - 04:30

Total Clouds (% Sky Obscured)

60
35
28
15
68
64
33
64
89
76
84
100
100
100
100
100
46
31
49
61
49
53
66
74

Low Clouds (% Sky Obscured)

42
14
22
13
28
27
33
35
25
41
14
14
0
10
20
0
0
0
25
30
22
27
34
46

Medium Clouds (% Sky Obscured)

35
12
8
0
0
0
0
0
0
0
0
0
0
12
18
31
32
31
49
32
49
18
26
35

High Clouds (% Sky Obscured)

0
0
0
1
40
40
2
38
77
49
76
100
100
100
100
100
36
27
15
10
1
30
57
74

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
4
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
10
9
8
5
4
4
4
3
1
1
2
2
2
2
3
3
4
7
8
10
10
10
11

Chance of Frost

Temperature (°C)

19
18
17
16
14
13
12
11
10
10
9
9
8
8
8
8
9
12
14
16
17
18
19
19

Feels Like (°C)

17
16
16
15
13
11
10
11
9
9
8
8
6
6
6
5
7
9
11
13
14
15
17
17

Dew Point (°C)

6
5
6
8
8
7
6
5
5
5
4
4
3
3
3
3
4
5
7
7
7
7
6
6

Relative Humidity (%)

42
42
48
57
65
66
67
68
69
70
72
72
73
73
74
73
69
64
63
56
51
47
44
42

Pressure (mb)

1018
1018
1018
1018
1019
1019
1019
1019
1020
1020
1020
1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1017
1017

Ozone (du)

325
324
322
319
317
315
313
313
311
310
310
308
307
306
305
306
306
305
308
308
312
314
308
306

Thursday 10

Waning Crescent 0%

06:51

19:08

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
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 06:32, Set: 19:30, Transit: 13:00. Moon - Rise: 06:51, Set: 19:08. Civil Dark: 20:05 - 05:58. Nautical Dark: 20:46 - 05:17. Astro Dark: 21:31 - 04:32

Total Clouds (% Sky Obscured)

93
100
100
100
100
100
100
100
100
99
95
69
67
65
66
65
63
65
65
64
66
60
64
55

Low Clouds (% Sky Obscured)

31
29
14
17
59
73
84
92
85
94
92
52
46
55
66
65
63
65
65
64
66
60
64
55

Medium Clouds (% Sky Obscured)

32
22
22
76
98
100
100
100
85
98
73
19
14
10
3
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

93
100
100
100
100
100
76
52
24
2
1
0
0
0
0
2
4
6
4
2
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
9
9
7
9
5
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
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
7
43
71
89
95
87
83
70
65
53
34
11
8
3
0
2
15
24
24
30
27

Precipitation Amount (mm)

0
0
0
0
0
0.5
0.7
0.8
0.3
0.3
0.2
0.3
0.3
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

41
42
47
52
53
52
57
61
63
73
76
84
93
93
95
87
84
83
78
74
70
73
68
70

Pressure (mb)

1016
1016
1016
1015
1016
1016
1016
1015
1015
1015
1015
1014
1014
1015
1015
1016
1016
1017
1018
1019
1019
1020
1020
1020

Ozone (du)

303
301
300
299
299
303
306
311
315
315
318
313
312
312
312
312
311
312
313
313
313
313
314
314

Friday 11

New Moon 2%

08:12

19:19

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

Sun - Rise: 06:34, Set: 19:28, Transit: 13:00. Moon - Rise: 08:12, Set: 19:19. Civil Dark: 20:02 - 06:00. Nautical Dark: 20:44 - 05:18. Astro Dark: 21:28 - 04:34

Total Clouds (% Sky Obscured)

56
46
28
29
47
70
55
18
2
8
14
35
54
63
67
63
54
43
56
68
83
87
89
90

Low Clouds (% Sky Obscured)

54
46
28
17
20
30
40
1
0
5
9
14
16
30
32
16
8
1
2
3
2
3
6
6

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
9
11
13
15
21
25
30
31

High Clouds (% Sky Obscured)

0
0
1
11
22
32
25
17
2
1
1
5
14
23
28
41
28
19
24
23
18
37
61
87

ISS Passover

Visibility (miles)

8
6
7
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
32
20
7
3
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)

12
12
10
9
8
7
6
5
5
4
3
3
3
3
2
2
4
6
8
9
10
12
12
13

Chance of Frost

Temperature (°C)

19
18
17
16
15
14
13
12
11
10
10
9
9
9
9
8
10
12
15
16
17
19
19
19

Feels Like (°C)

18
17
17
18
16
13
11
10
11
11
11
10
9
7
8
7
8
9
10
11
11
11
19
17

Dew Point (°C)

13
13
13
13
12
11
9
8
8
8
7
6
6
5
5
5
6
8
9
9
10
10
9
8

Relative Humidity (%)

68
71
77
82
84
82
79
77
81
83
81
81
80
78
80
78
76
72
69
64
60
55
50
47

Pressure (mb)

1020
1021
1021
1022
1023
1024
1025
1025
1025
1025
1025
1025
1025
1025
1026
1026
1024
1024
1024
1023
1023
1022
1021
1021

Ozone (du)

315
316
317
318
318
318
316
314
309
306
302
298
295
295
295
295
295
295
295
295
296
297
297
298

Saturday 12

Waxing Crescent 7%

09:32

19:31

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
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 06:36, Set: 19:25, Transit: 12:59. Moon - Rise: 09:32, Set: 19:31. Civil Dark: 20:00 - 06:02. Nautical Dark: 20:41 - 05:20. Astro Dark: 21:25 - 04:36

Total Clouds (% Sky Obscured)

86
92
100
99
99
98
98
97
97
98
99
100
96
89
83
83
84
85
86
87
91
87
84
79

Low Clouds (% Sky Obscured)

6
7
7
7
6
3
33
63
93
96
96
98
96
89
83
83
84
85
81
76
74
76
78
79

Medium Clouds (% Sky Obscured)

29
28
24
32
43
56
70
83
94
96
98
100
76
54
32
23
11
0
0
0
1
2
1
0

High Clouds (% Sky Obscured)

86
92
100
85
74
65
57
46
36
51
76
100
69
38
7
6
4
0
11
22
29
20
9
1

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
0
0
3
8
9
49
73
95
95
95
95
95
95
89
71
50
5
17
22
26
23
21
18

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.4
0.8
1
1.3
1.4
1.2
1.1
0.7
0.5
0.2
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

13
13
13
13
13
12
12
12
12
12
13
13
13
13
13
12
13
13
14
14
14
14
13
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

43
47
52
56
58
60
63
72
82
93
92
92
93
92
90
90
90
90
88
80
71
64
64
64

Pressure (mb)

1020
1020
1019
1019
1019
1019
1018
1018
1017
1017
1017
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

298
298
298
299
299
300
301
302
302
302
304
306
309
310
312
313
311
308
305
303
300
298
296
295

Sunday 13

Waxing Crescent 13%

10:51

19:43

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

Sun - Rise: 06:37, Set: 19:23, Transit: 12:59. Moon - Rise: 10:51, Set: 19:43. Civil Dark: 19:57 - 06:03. Nautical Dark: 20:38 - 05:22. Astro Dark: 21:22 - 04:39

Total Clouds (% Sky Obscured)

82
84
87
59
31
3
11
19
28
47
66
85
82
75
64
56
45
37
46
57
69

Low Clouds (% Sky Obscured)

81
80
81
53
26
0
8
15
19
19
16
17
18
18
18
20
20
15
14
16
22

Medium Clouds (% Sky Obscured)

6
12
18
12
6
1
1
0
0
0
0
1
1
2
3
2
1
0
0
1
1

High Clouds (% Sky Obscured)

6
12
14
7
2
1
1
1
2
25
48
72
64
56
44
29
14
0
22
44
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

Fog (%)

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

Precipitation Probability (%)

11
6
2
7
9
9
7
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

19
19
19
18
18
17
17
17
16
16
13
13
14
13
13
13
13
13
14
13
14

Dew Point (°C)

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

Relative Humidity (%)

64
66
66
67
72
75
82
84
87
90
90
92
92
92
93
93
84
76
69
62
54

Pressure (mb)

1015
1015
1016
1016
1016
1017
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1018

Ozone (du)

293
291
289
287
285
283
281
280
278
277
276
275
274
274
273
272
273
273
273
273
274

Forecast for Nether Heyford, Northamptonshire, United Kingdom (52.22,-1.04)

Generated: 07/09/26 16:00:02. Forecast: 07/09/26 to 13/09/26. Timezone: UTC+1.00