Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 31

Waning Gibbous 83%

20:29

11:38

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

Sun - Rise: 06:11, Set: 19:51, Transit: 12:59. 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)

37
34
29
42
97
100
85
76
39
52
38
34
37
43
81
79
87
57
70
74
98
100
100
100

Low Clouds (% Sky Obscured)

19
13
0
0
0
1
1
1
1
1
2
3
0
1
6
21
48
20
20
17
29
52
51
38

Medium Clouds (% Sky Obscured)

0
4
7
19
31
100
20
16
11
48
13
12
13
11
6
4
7
10
10
9
12
8
12
10

High Clouds (% Sky Obscured)

14
3
20
40
95
100
85
57
0
0
0
1
1
20
73
71
41
25
17
40
95
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
10
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
71
74
78
80
82
80
80
83
84
86
87
83
72
64
57
52
48
46
43
42
41
41
48

Pressure (mb)

1013
1015
1016
1016
1017
1017
1017
1017
1017
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1018

Ozone (du)

325
321
320
320
320
321
321
321
320
318
317
316
316
317
319
319
318
319
318
317
317
319
320
321

Tuesday 1

Waning Gibbous 74%

20:43

13:07

19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 OK
02 Bad
03 Bad
04 OK
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

Sun - Rise: 06:12, Set: 19:48, Transit: 12:59. Moon - Rise: 20:43, Set: 13:07. Civil Dark: 20:24 - 05:36. Nautical Dark: 21:09 - 04:52. Astro Dark: 21:59 - 04:03

Total Clouds (% Sky Obscured)

95
91
100
80
49
49
41
68
84
28
52
78
56
93
100
100
100
97
84
100
100
100
100
98

Low Clouds (% Sky Obscured)

7
1
1
1
0
1
0
20
13
1
15
21
34
44
57
54
64
56
46
75
79
100
90
75

Medium Clouds (% Sky Obscured)

15
15
14
71
49
49
41
68
44
12
7
10
14
15
23
81
85
24
14
68
92
99
18
93

High Clouds (% Sky Obscured)

91
83
100
33
35
40
37
2
1
4
20
71
56
79
93
76
100
54
28
100
100
100
100
64

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
1
9
26
30
17
9
9
3
7
11

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
66
72
71
69
70
70
69
75
82
84
87
86
82
79
74
71
61
53
50
57
65
64
64

Pressure (mb)

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

Ozone (du)

319
318
319
319
319
320
325
326
322
318
314
311
312
311
307
305
303
300
299
297
296
297
295
295

Wednesday 2

Waning Gibbous 63%

21:04

14:35

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
16 Bad
17 Bad
18 Bad

Sun - Rise: 06:14, Set: 19:46, Transit: 12:59. Moon - Rise: 21:04, Set: 14:35. Civil Dark: 20:22 - 05:38. Nautical Dark: 21:06 - 04:54. Astro Dark: 21:55 - 04:05

Total Clouds (% Sky Obscured)

100
88
88
98
91
91
100
100
100
100
100
100
100
100
100
99
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

60
50
56
63
75
48
47
33
33
37
40
62
61
47
34
28
31
28
41
41
31
70
85
100

Medium Clouds (% Sky Obscured)

7
4
9
4
3
2
2
2
5
5
9
16
16
43
16
99
93
95
99
99
99
98
99
100

High Clouds (% Sky Obscured)

90
64
70
88
63
69
100
100
100
100
100
100
89
100
100
95
100
100
100
100
100
98
96
95

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
3
8
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
Light Rain
Very Light Rain
None

Precipitation Probability (%)

0
0
4
0
0
0
0
0
0
0
4
2
2
4
1
12
4
3
16
16
39
66
55
35

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
19
18
18
18
18
19
18
18
18
18
18
18
18
19
19
20
20
21
20
20
20
19
19

Feels Like (°C)

18
17
17
18
17
18
18
16
16
16
16
16
16
16
17
17
17
17
17
17
18
18
18
17

Dew Point (°C)

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

Relative Humidity (%)

75
70
80
81
85
89
92
92
90
93
92
90
88
85
78
63
61
55
56
56
59
70
73
77

Pressure (mb)

1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1014

Ozone (du)

295
294
293
294
295
293
294
294
294
293
292
291
291
290
290
291
291
290
291
291
289
289
290
291

Thursday 3

Waning Gibbous 51%

21:34

15:57

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
16 Bad
17 Bad
18 Bad

Sun - Rise: 06:16, Set: 19:43, Transit: 12:58. Moon - Rise: 21:34, Set: 15:57. Civil Dark: 20:19 - 05:40. Nautical Dark: 21:03 - 04:56. Astro Dark: 21:52 - 04:08

Total Clouds (% Sky Obscured)

99
99
98
99
99
100
98
96
95
96
98
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

94
88
82
71
59
51
58
70
81
81
80
79
79
69
60
59
73
32
50
56
36
34
30
27

Medium Clouds (% Sky Obscured)

97
72
98
61
94
86
90
92
95
96
98
100
100
100
100
100
100
18
3
2
0
0
0
0

High Clouds (% Sky Obscured)

89
88
82
88
95
100
90
79
60
70
84
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
4
6
3
6
6
4
4
6
9
9
9
7
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
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

40
50
51
68
79
87
90
76
91
86
80
67
69
79
81
71
53
22
18
12
1
0
0
0

Precipitation Amount (mm)

0
0
0
0.3
0.3
0.5
0.5
0.3
0.5
0.5
0.5
0.3
0.4
0.6
0.6
0.4
0.2
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
18
18
18
18
19
19
19
19
19
19
18
18
19
19
20
20
20
20
20
20
20
19
19

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
71
74
77
86
91
91
91
92
93
93
93
92
89
88
84
78
81
67
58
54
48
48
50

Pressure (mb)

1014
1014
1014
1014
1013
1013
1012
1012
1011
1011
1011
1011
1010
1011
1011
1011
1011
1012
1012
1012
1012
1013
1013
1014

Ozone (du)

292
293
293
293
293
293
292
292
296
297
298
300
302
305
309
311
316
317
319
319
319
319
319
320

Friday 4

Third Quarter 39%

22:20

17:02

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

Sun - Rise: 06:17, Set: 19:41, Transit: 12:58. Moon - Rise: 22:20, Set: 17:02. Civil Dark: 20:17 - 05:42. Nautical Dark: 21:01 - 04:58. Astro Dark: 21:49 - 04:10

Total Clouds (% Sky Obscured)

88
78
63
62
27
23
42
58
95
100
100
100
80
62
44
36
28
20
38
56
71
62
57
52

Low Clouds (% Sky Obscured)

31
31
33
29
26
21
15
9
4
6
6
8
13
25
37
34
28
20
27
27
30
25
21
17

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
3
3
2
1

High Clouds (% Sky Obscured)

88
77
50
40
3
1
29
55
95
100
100
100
74
49
24
18
11
5
16
28
37
37
37
40

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
10
9
9
9
10
9
9
9
9
9
9
10
9
8
8
8
8
8
9
9
9
10
10

Relative Humidity (%)

56
62
63
66
69
75
75
74
76
79
81
81
84
75
67
59
56
52
48
50
50
51
54
57

Pressure (mb)

1014
1015
1016
1016
1017
1018
1018
1018
1019
1019
1019
1020
1020
1021
1022
1022
1023
1023
1023
1024
1024
1024
1024
1024

Ozone (du)

320
322
324
325
324
324
323
318
315
314
314
313
310
308
305
302
301
300
299
298
296
295
295
294

Saturday 5

Waning Crescent 28%

23:26

17:47

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
16 Bad
17 Bad
18 Bad

Sun - Rise: 06:19, Set: 19:39, Transit: 12:58. Moon - Rise: 23:26, Set: 17:47. Civil Dark: 20:14 - 05:44. Nautical Dark: 20:58 - 05:00. Astro Dark: 21:46 - 04:13

Total Clouds (% Sky Obscured)

60
69
79
80
81
82
77
75
71
69
66
61
69
79
91
82
78
70
77
83
88
92
94
97

Low Clouds (% Sky Obscured)

9
4
0
2
4
7
5
3
2
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

5
9
9
21
34
46
49
53
57
40
23
6
6
10
14
13
16
21
28
37
42
41
41
40

High Clouds (% Sky Obscured)

47
50
52
40
33
29
15
10
1
7
12
18
42
67
91
82
78
70
76
83
88
92
94
97

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
7
9
8

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)

5
4
2
1
2
3
4
5
5
6
6
6
6
7
9
10
10
11
12
11
11
11
10
8

Chance of Frost

Temperature (°C)

17
16
16
15
14
14
14
14
14
13
13
13
13
15
16
18
19
20
21
22
22
23
22
21

Feels Like (°C)

18
14
15
15
15
14
14
13
13
13
13
13
12
13
13
13
13
14
14
20
20
19
20
20

Dew Point (°C)

10
9
9
8
8
8
8
9
9
9
9
9
9
8
8
8
8
8
9
8
8
8
9
9

Relative Humidity (%)

61
62
63
64
67
68
69
71
72
74
75
74
72
66
58
52
49
46
43
41
40
38
43
47

Pressure (mb)

1024
1025
1025
1025
1025
1025
1025
1024
1024
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1021
1020
1020
1019
1019

Ozone (du)

294
293
292
291
290
290
289
291
292
294
295
295
296
295
294
294
292
291
290
289
289
288
289
289

Sunday 6

Waning Crescent 18%

00:49

18:18

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 OK

Sun - Rise: 06:21, Set: 19:36, Transit: 12:57. Moon - Rise: 00:49, Set: 18:18. Civil Dark: 20:12 - 05:46. Nautical Dark: 20:55 - 05:02. Astro Dark: 21:43 - 04:15

Total Clouds (% Sky Obscured)

98
99
100
99
99
98
98
99
99
84
75
67
71
67
68
63
53
48

Low Clouds (% Sky Obscured)

0
0
0
8
16
26
30
35
39
45
49
51
47
49
46
33
20
6

Medium Clouds (% Sky Obscured)

47
54
58
59
59
61
59
58
64
69
75
67
71
67
68
63
53
40

High Clouds (% Sky Obscured)

98
99
100
93
86
79
86
92
98
65
33
5
4
8
3
2
1
0

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

22
36
43
43
47
38
23
8
0
5
6
3
6
5
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

7
7
6
6
6
6
6
6
6
5
5
5
5
5
6
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

52
54
56
59
58
58
56
59
59
61
61
62
62
61
60
58
56
52

Pressure (mb)

1019
1019
1019
1019
1019
1019
1018
1018
1018
1017
1017
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

290
291
291
292
291
291
290
291
291
291
294
296
299
301
302
304
302
300

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

Generated: 31/08/26 19:53:52. Forecast: 31/08/26 to 06/09/26. Timezone: UTC+1.00