Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 28

Full Moon 99%

19:57

07:31

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

Sun - Rise: 06:06, Set: 19:57, Transit: 13:01. Moon - Rise: 19:57, Set: 07:31. Civil Dark: 20:34 - 05:29. Nautical Dark: 21:20 - 04:44. Astro Dark: 22:12 - 03:52

Total Clouds (% Sky Obscured)

71
71
73
25
100
94
59
87
83
90
62
56
34
14
18
19
41
93
100
100
100
100
98
100

Low Clouds (% Sky Obscured)

36
43
64
73
52
60
42
25
22
23
18
24
34
14
18
19
22
27
48
42
90
88
65
46

Medium Clouds (% Sky Obscured)

87
76
70
86
90
92
94
71
83
53
7
0
0
0
0
0
0
5
11
7
24
34
96
100

High Clouds (% Sky Obscured)

100
94
100
95
23
24
100
20
1
2
1
0
0
0
0
0
20
88
100
100
100
100
70
100

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
-
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

Precipitation Type

None
None
None
None
Light Rain
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
100
0
0
0
64
36
14
0
0
0
0
0
0
0
0
0
4
11
14
42

Precipitation Amount (mm)

0
0
0
0
0.6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
22
23
23
18
18
19
19
18
17
17
16
16
15
15
15
14
14
14
15
15
17
18
18

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

63
58
59
59
81
82
79
82
82
86
89
90
92
93
93
96
95
96
96
95
86
79
83
73

Pressure (mb)

1004
1003
1003
1003
1003
1003
1003
1003
1004
1004
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1006
1006
1005
1005

Ozone (du)

347
345
344
342
341
341
340
342
336
333
330
328
328
327
324
321
318
315
312
310
307
306
304
304

Saturday 29

Waning Gibbous 96%

20:07

08:51

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 OK
09 Bad
10 Bad
11 Bad

Sun - Rise: 06:07, Set: 19:55, Transit: 13:00. Moon - Rise: 20:07, Set: 08:51. Civil Dark: 20:32 - 05:31. Nautical Dark: 21:17 - 04:46. Astro Dark: 22:08 - 03:55

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
92
95
96
94
96
98
98
99
64
76
51
44
43
73
77
65

Low Clouds (% Sky Obscured)

67
88
93
100
100
84
81
85
82
90
92
78
80
97
96
98
51
68
43
44
43
66
71
65

Medium Clouds (% Sky Obscured)

100
100
93
100
100
100
99
95
11
12
17
4
67
98
95
96
8
4
4
0
0
0
8
5

High Clouds (% Sky Obscured)

100
100
2
100
100
100
100
88
13
9
30
35
10
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
5
9
8
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
Light Rain
Very Light Rain
Light Rain
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

50
52
95
75
84
77
92
52
19
2
1
1
11
22
12
10
3
6
0
0
0
2
2
2

Precipitation Amount (mm)

0.2
0
1.2
0.3
0.4
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
16
17
17
16
16
16
16
16
16
15
15
14
15
15
15
14
14
13
14
13
15
17
18

Dew Point (°C)

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

Relative Humidity (%)

65
74
80
81
83
86
90
92
90
92
93
95
95
98
96
93
92
93
90
92
86
81
74
71

Pressure (mb)

1005
1005
1004
1003
1003
1002
1001
1001
1001
1001
1001
1002
1003
1003
1004
1004
1005
1005
1006
1007
1007
1008
1008
1008

Ozone (du)

304
306
311
310
310
314
317
316
318
317
311
312
312
313
314
315
318
317
317
317
317
318
317
317

Sunday 30

Waning Gibbous 91%

20:17

10:13

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 OK
09 Bad
10 Bad
11 Bad

Sun - Rise: 06:09, Set: 19:53, Transit: 13:00. Moon - Rise: 20:17, Set: 10:13. Civil Dark: 20:29 - 05:33. Nautical Dark: 21:14 - 04:48. Astro Dark: 22:05 - 03:58

Total Clouds (% Sky Obscured)

83
79
89
100
100
99
96
100
100
95
99
99
91
91
91
93
100
62
60
43
35
51
73
67

Low Clouds (% Sky Obscured)

74
57
73
59
87
40
41
51
40
40
40
70
66
56
59
56
54
62
60
30
27
42
52
31

Medium Clouds (% Sky Obscured)

8
9
6
9
15
15
14
5
14
92
13
3
5
0
5
5
5
15
4
4
4
0
2
10

High Clouds (% Sky Obscured)

0
2
49
100
83
65
65
87
100
70
96
97
67
72
71
77
93
50
47
2
2
3
3
5

ISS Passover

Visibility (miles)

9
9
9
9
9
3
2
9
9
2
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
Light Rain
Light Rain
Light Rain
None
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

7
8
19
32
74
85
95
32
83
75
28
37
16
6
14
9
38
18
2
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0.4
0.4
0.7
0
0.5
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
21
22
23
22
21
20
19
18
17
17
16
16
16
15
15
15
14
14
14
15
16
18
19

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

60
56
54
54
52
64
69
70
72
82
79
85
86
87
90
93
96
92
89
89
83
75
66
61

Pressure (mb)

1008
1008
1007
1007
1006
1006
1006
1006
1005
1005
1005
1005
1005
1004
1004
1004
1003
1004
1004
1005
1005
1006
1007
1008

Ozone (du)

319
320
318
319
319
318
320
323
324
324
323
324
326
326
329
331
330
329
330
332
332
334
336
336

Monday 31

Waning Gibbous 83%

20:29

11:38

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 OK
08 OK
09 OK
10 Bad
11 OK

Sun - Rise: 06:11, Set: 19:51, Transit: 13:00. Moon - Rise: 20:29, Set: 11:38. Civil Dark: 20:27 - 05:35. Nautical Dark: 21:12 - 04:50. Astro Dark: 22:02 - 04:00

Total Clouds (% Sky Obscured)

88
85
74
64
69
67
52
56
63
86
77
81
78
88
91
98
81
64
50
43
37
34
57
38

Low Clouds (% Sky Obscured)

73
68
57
47
54
53
37
22
11
1
0
0
0
2
4
6
4
2
0
12
14
9
22
33

Medium Clouds (% Sky Obscured)

6
6
5
4
8
7
5
7
13
16
22
23
30
31
28
21
16
9
50
43
37
34
49
5

High Clouds (% Sky Obscured)

0
0
0
0
0
2
4
23
30
66
41
30
26
47
54
94
79
61
50
43
37
34
54
7

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 (%)

16
15
8
5
22
14
6
8
5
0
0
0
0
2
3
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)

15
16
17
17
18
16
15
15
13
11
10
10
10
10
9
9
8
8
7
7
8
9
10
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

57
55
59
60
57
61
59
63
71
77
80
83
87
89
90
92
90
89
87
83
76
69
64
54

Pressure (mb)

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

Ozone (du)

337
338
334
330
324
322
319
318
319
318
317
316
316
316
315
315
317
318
319
320
321
323
323
323

Tuesday 1

Waning Gibbous 74%

20:43

No Set

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
10 Bad
11 Bad

Sun - Rise: 06:12, Set: 19:48, Transit: 12:59. Moon - Rise: 20:43, Set: No Set. Civil Dark: 20:24 - 05:36. Nautical Dark: 21:09 - 04:52. Astro Dark: 21:59 - 04:03

Total Clouds (% Sky Obscured)

55
77
79
80
83
92
74
63
57
62
88
100
100
97
100
100
100
100
100
96
92
89
81
73

Low Clouds (% Sky Obscured)

45
64
63
55
54
59
49
38
27
18
11
5
0
5
9
15
20
24
32
80
72
62
55
47

Medium Clouds (% Sky Obscured)

5
6
7
10
7
7
9
11
13
15
8
8
4
4
4
9
17
35
100
92
85
78
74
68

High Clouds (% Sky Obscured)

10
6
3
1
8
17
28
29
38
52
86
100
100
97
100
100
100
100
82
27
41
55
54
50

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
Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

1
2
4
4
4
2
0
0
0
0
0
0
0
2
4
3
20
32
40
92
73
42
33
21

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.3
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

48
46
46
49
50
51
53
54
61
66
69
72
74
75
75
74
74
73
75
76
71
65
60
56

Pressure (mb)

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

Ozone (du)

324
325
328
329
329
328
328
328
325
323
321
322
322
321
321
319
319
319
316
316
317
318
319
318

Wednesday 2

Waning Gibbous 63%

21:04

13:07

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
10 Bad
11 Bad

Sun - Rise: 06:14, Set: 19:46, Transit: 12:59. Moon - Rise: 21:04, Set: 13:07. Civil Dark: 20:22 - 05:38. Nautical Dark: 21:06 - 04:54. Astro Dark: 21:55 - 04:05

Total Clouds (% Sky Obscured)

66
72
79
89
89
86
86
78
71
65
66
72
80
84
92
100
100
100
100
90
83
76
78
74

Low Clouds (% Sky Obscured)

41
46
55
64
67
70
73
68
67
60
53
52
46
48
50
53
55
57
60
55
50
45
42
40

Medium Clouds (% Sky Obscured)

60
72
79
89
89
86
86
77
59
43
50
57
65
55
45
38
29
19
10
9
9
6
10
16

High Clouds (% Sky Obscured)

52
53
61
64
64
65
70
69
64
59
49
45
45
35
44
34
34
50
50
50
45
45
36
32

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

Precipitation Probability (%)

3
20
27
30
43
62
84
79
64
35
25
20
17
15
8
6
38
53
62
56
43
25
22
16

Precipitation Amount (mm)

0
0
0
0
0
0.4
0.7
0.6
0.3
0
0
0
0
0
0
0
0
0.2
0.4
0.3
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
22
21
21
21
20
19
18
17
17
16
16
16
16
15
15
15
15
15
15
16
17
17
18

Feels Like (°C)

15
15
20
20
20
18
18
17
14
13
13
13
13
13
14
14
14
14
14
13
14
14
14
15

Dew Point (°C)

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

Relative Humidity (%)

52
50
57
67
76
81
85
90
89
87
85
87
89
89
92
92
92
92
93
92
86
78
72
64

Pressure (mb)

1014
1014
1013
1013
1013
1013
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1012

Ozone (du)

318
317
315
313
311
309
308
306
305
305
305
304
304
303
302
301
300
299
298
297
295
294
293
292

Thursday 3

Waning Gibbous 51%

21:34

14:35

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
10 Bad
11 Bad

Sun - Rise: 06:16, Set: 19:43, Transit: 12:59. Moon - Rise: 21:34, Set: 14:35. Civil Dark: 20:19 - 05:40. Nautical Dark: 21:03 - 04:56. Astro Dark: 21:52 - 04:08

Total Clouds (% Sky Obscured)

74
78
83
88
89
91
92
94
96
99
92
84
76
64
52
36
38
47
53
62
62
68
76
78

Low Clouds (% Sky Obscured)

40
39
38
37
43
49
54
57
59
61
57
53
49
38
23
10
19
33
44
37
29
15
15
15

Medium Clouds (% Sky Obscured)

23
26
31
33
31
28
26
35
44
51
49
46
44
41
38
36
36
38
38
28
17
4
16
29

High Clouds (% Sky Obscured)

28
30
21
9
25
44
57
71
84
97
77
55
33
28
24
19
17
15
17
17
22
18
15
13

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 (%)

7
7
4
2
7
5
0
5
5
1
3
5
1
14
23
21
28
30
21
15
13
2
3
3

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

58
52
54
55
57
60
63
67
71
74
78
77
75
73
75
76
78
75
73
72
69
67
64
61

Pressure (mb)

1012
1012
1012
1012
1012
1013
1013
1014
1014
1015
1015
1015
1016
1016
1016
1016
1016
1017
1018
1018
1019
1020
1020
1020

Ozone (du)

292
291
290
289
288
288
288
288
287
287
286
286
286
285
285
285
286
288
290
292
293
294
295
295

Forecast for Boston, Lincolnshire, United Kingdom (52.98,-0.02)

Generated: 28/08/26 20:29:12. Forecast: 28/08/26 to 03/09/26. Timezone: UTC+1.00