Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 7

Waning Crescent 10%

02:31

18:35

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
16 OK
17 Bad
18 OK
19 Good

Sun - Rise: 06:27, Set: 19:33, Transit: 13:00. Moon - Rise: 02:31, Set: 18:35. Civil Dark: 20:09 - 05:53. Nautical Dark: 20:50 - 05:12. Astro Dark: 21:35 - 04:27

Total Clouds (% Sky Obscured)

75
81
85
88
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
71
35
47
20
10

Low Clouds (% Sky Obscured)

16
0
32
0
41
49
56
80
73
72
75
68
74
66
73
83
84
74
71
71
31
37
11
2

Medium Clouds (% Sky Obscured)

75
81
85
88
100
98
100
100
100
100
100
100
100
100
100
100
100
100
100
70
0
10
3
2

High Clouds (% Sky Obscured)

75
81
85
88
100
100
100
100
100
100
100
100
100
100
100
100
42
0
0
20
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
5
4
3
3
4
3
7
7
4
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

48
95
95
37
37
47
59
86
95
95
95
95
95
95
95
95
95
82
34
12
9
1
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0.2
0.6
0.8
1.1
1
1
1.2
0.9
1
0.8
1.6
0.5
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
7
7
6
7
8
9
9
9
8
7
7
7
7
6
7
7
8
9
10
10
12
14
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
11
11
11
10
10
11
12
12
13
13
13
14
14
14
13
13
13
11
12
11
7
6
7

Relative Humidity (%)

57
62
67
69
72
73
76
84
87
90
93
95
95
96
93
90
89
86
78
78
68
49
45
50

Pressure (mb)

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

Ozone (du)

298
298
298
298
298
297
298
297
297
297
297
297
297
298
300
305
308
317
330
334
341
330
332
334

Tuesday 8

Waning Crescent 4%

04:01

18:52

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

Sun - Rise: 06:29, Set: 19:30, Transit: 12:59. Moon - Rise: 04:01, Set: 18:52. Civil Dark: 20:07 - 05:55. Nautical Dark: 20:48 - 05:14. Astro Dark: 21:32 - 04:29

Total Clouds (% Sky Obscured)

0
0
0
0
0
3
2
0
0
0
3
2
10
10
42
69
63
37
33
30
15
7
30
33

Low Clouds (% Sky Obscured)

0
0
0
0
0
2
2
0
0
0
3
2
10
10
35
53
61
23
7
6
7
3
9
14

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
6
4
5
5
3
1
7
7

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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
12
10
10
10
10
9
10
9
9
9
9
10
12
13
14
14
15
17
18
18
19
19
18

Dew Point (°C)

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

Relative Humidity (%)

62
68
71
77
79
81
84
88
88
91
93
90
76
63
55
53
54
50
41
36
36
37
43
52

Pressure (mb)

1010
1011
1012
1012
1013
1013
1014
1014
1014
1015
1016
1016
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

336
338
339
339
338
339
340
339
338
337
335
336
335
334
334
332
331
332
335
333
331
327
323
321

Wednesday 9

Waning Crescent 1%

05:27

19:06

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

Sun - Rise: 06:30, Set: 19:28, Transit: 12:59. Moon - Rise: 05:27, Set: 19:06. Civil Dark: 20:04 - 05:56. Nautical Dark: 20:45 - 05:15. Astro Dark: 21:29 - 04:32

Total Clouds (% Sky Obscured)

40
21
33
40
73
88
81
100
100
98
96
100
28
23
30
68
81
74
72
78
80
100
100
100

Low Clouds (% Sky Obscured)

16
12
21
27
24
25
17
0
0
19
38
0
0
0
7
55
74
59
46
29
36
49
42
40

Medium Clouds (% Sky Obscured)

4
0
0
0
0
0
0
0
0
0
35
0
1
23
0
67
63
23
16
19
12
8
9
5

High Clouds (% Sky Obscured)

1
1
1
1
37
66
54
100
100
96
80
100
28
23
25
20
9
30
64
78
80
100
100
100

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
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)

4
4
3
3
3
3
2
2
2
1
2
2
1
2
4
6
8
8
9
8
9
10
10
10

Chance of Frost

Temperature (°C)

16
15
13
12
12
11
10
10
9
8
7
7
8
12
15
17
19
20
20
20
20
19
18
17

Feels Like (°C)

15
14
14
13
12
10
9
8
7
7
6
5
7
10
13
15
16
17
18
19
19
17
15
14

Dew Point (°C)

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

Relative Humidity (%)

58
60
64
67
70
72
73
73
72
73
74
72
68
63
61
53
44
42
42
40
40
42
49
57

Pressure (mb)

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

Ozone (du)

319
317
315
312
310
309
308
307
306
306
305
305
305
305
307
308
310
314
310
307
304
302
300
298

Thursday 10

Waning Crescent 0%

06:50

19:18

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
16 Bad
17 OK
18 OK
19 Bad

Sun - Rise: 06:32, Set: 19:26, Transit: 12:59. Moon - Rise: 06:50, Set: 19:18. Civil Dark: 20:00 - 05:58. Nautical Dark: 20:43 - 05:17. Astro Dark: 21:27 - 04:34

Total Clouds (% Sky Obscured)

100
100
99
99
98
97
96
94
90
66
62
67
60
49
51
57
63
63
67
73
63
33
38
65

Low Clouds (% Sky Obscured)

25
19
29
34
54
73
93
92
90
46
53
65
58
49
51
55
62
63
67
73
63
30
37
49

Medium Clouds (% Sky Obscured)

10
10
10
28
98
71
72
10
2
2
0
4
4
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
68
37
10
10
0
0
0
0
0
1
1
2
1
0
0
0
0
0
0
0
0
20

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
Light Rain
Light Rain
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

Precipitation Probability (%)

13
22
71
95
95
95
95
64
45
22
8
7
6
1
1
2
2
3
8
3
6
5
3
2

Precipitation Amount (mm)

0
0
0.4
1
1
0.9
0.8
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

66
73
76
79
82
78
80
78
79
83
93
95
85
74
64
58
56
56
56
55
59
60
64
72

Pressure (mb)

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

Ozone (du)

297
299
302
304
311
315
317
313
310
309
311
309
309
310
310
313
314
315
315
317
317
317
318
317

Friday 11

New Moon 2%

08:10

19:30

20 Bad
21 Bad
22 Bad
23 OK
00 Good
01 OK
02 OK
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
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 06:33, Set: 19:23, Transit: 12:58. Moon - Rise: 08:10, Set: 19:30. Civil Dark: 19:57 - 06:00. Nautical Dark: 20:40 - 05:19. Astro Dark: 21:24 - 04:36

Total Clouds (% Sky Obscured)

75
84
62
38
7
10
10
26
39
75
96
65
53
43
60
73
85
84
83
81
90
94
100
100

Low Clouds (% Sky Obscured)

29
22
19
20
0
10
10
11
5
7
7
13
13
16
21
27
32
23
15
11
15
14
11
7

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
2
3
6
10
14
14
11
15

High Clouds (% Sky Obscured)

44
66
46
29
6
4
3
20
32
69
90
35
34
34
46
53
60
69
75
81
89
94
100
100

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 (%)

2
0
1
0
0
0
0
0
0
0
0
0
0
0
1
2
3
6
5
1
4
2
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)

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

Chance of Frost

Temperature (°C)

17
15
14
13
12
11
11
10
10
9
8
8
10
13
16
18
20
21
21
22
22
21
20
19

Feels Like (°C)

16
15
13
13
13
13
12
12
10
10
9
8
10
11
13
14
15
15
22
20
19
20
21
21

Dew Point (°C)

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

Relative Humidity (%)

75
80
82
86
89
93
93
91
90
90
91
90
85
80
75
67
59
52
50
47
44
50
56
61

Pressure (mb)

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

Ozone (du)

316
315
314
311
309
304
301
297
295
294
293
293
293
293
293
293
294
294
294
295
295
295
296
296

Saturday 12

Waxing Crescent 7%

09:29

19:43

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
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 06:35, Set: 19:21, Transit: 12:58. Moon - Rise: 09:29, Set: 19:43. Civil Dark: 19:55 - 06:01. Nautical Dark: 20:38 - 05:21. Astro Dark: 21:21 - 04:38

Total Clouds (% Sky Obscured)

100
99
99
99
98
98
98
98
98
99
100
97
94
92
93
94
96
89
82
73
68
63
59
53

Low Clouds (% Sky Obscured)

2
0
0
1
1
30
59
88
92
95
98
93
88
83
86
90
94
89
82
73
68
56
41
34

Medium Clouds (% Sky Obscured)

19
11
19
27
38
60
79
98
77
59
37
27
16
5
2
2
3
2
2
1
1
0
0
0

High Clouds (% Sky Obscured)

100
99
84
77
71
77
78
79
50
29
19
13
6
0
20
42
63
43
23
4
6
9
10
14

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
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
None

Precipitation Probability (%)

0
0
4
10
13
46
60
70
73
72
66
58
47
34
28
22
16
17
17
13
9
3
0
2

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
17
16
16
16
16
16
16
16
16
17
17
18
19
19
20
21
22
22
22
22
22
21
20

Feels Like (°C)

16
16
17
16
16
15
15
15
15
15
15
15
16
17
17
17
17
17
21
20
20
20
20
21

Dew Point (°C)

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

Relative Humidity (%)

70
78
87
86
85
85
87
90
93
93
93
93
90
88
84
76
69
62
58
54
51
54
58
62

Pressure (mb)

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

Ozone (du)

297
298
300
300
300
300
301
303
304
307
309
312
310
308
306
303
299
296
294
292
290
289
288
286

Sunday 13

Waxing Crescent 13%

10:47

19:59

20 Bad
21 OK
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 OK
04 Bad
05 Bad
06 Bad
07 Bad
08 OK
09 OK
10 OK
11 Bad
12 Bad

Sun - Rise: 06:37, Set: 19:19, Transit: 12:58. Moon - Rise: 10:47, Set: 19:59. Civil Dark: 19:52 - 06:03. Nautical Dark: 20:35 - 05:23. Astro Dark: 21:18 - 04:40

Total Clouds (% Sky Obscured)

48
43
49
54
56
49
42
35
39
43
46
39
34
25
43
65
85

Low Clouds (% Sky Obscured)

29
19
20
15
15
9
7
6
9
10
8
9
7
4
7
10
8

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

18
22
17
9
6
8
10
13
17
21
25
17
9
0
16
31
47

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

2
1
2
1
0
1
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
18
19
18
18
17
14
14
14
14
14
13
13
14
15
15
15

Dew Point (°C)

13
13
14
14
14
13
13
12
12
11
11
10
10
10
10
9
7

Relative Humidity (%)

69
74
83
86
90
93
93
93
93
93
93
93
80
68
59
51
43

Pressure (mb)

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

Ozone (du)

284
281
278
277
276
275
274
274
273
273
273
273
273
273
272
272
272

Forecast for Bray Court, Windsor and Maidenhead, United Kingdom (51.50,-0.70)

Generated: 07/09/26 20:55:30. Forecast: 07/09/26 to 13/09/26. Timezone: UTC+1.00