Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 22

Waxing Gibbous 75%

17:47

23:59

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

Sun - Rise: 05:55, Set: 20:11, Transit: 13:02. Moon - Rise: 17:47, Set: 23:59. Civil Dark: 20:49 - 05:18. Nautical Dark: 21:36 - 04:31. Astro Dark: 22:33 - 03:35

Total Clouds (% Sky Obscured)

62
67
69
70
86
83
41
27
28
15
22
35
37
29
20
18
15
17
25
17
22
18
9
9

Low Clouds (% Sky Obscured)

62
67
66
55
80
76
38
27
28
15
22
35
37
29
20
18
15
17
25
14
17
14
9
9

Medium Clouds (% Sky Obscured)

22
13
3
3
11
17
20
19
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
16
3
0
0
0
0
0
0
2
5
5
2
0
0
0
0
0
2
5
4
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)

8
6
7
8
7
5
4
3
2
2
1
1
2
2
3
3
3
3
4
4
4
5
7
8

Chance of Frost

Temperature (°C)

19
19
18
15
14
13
13
13
12
12
12
12
11
10
10
12
14
16
18
19
20
20
20
20

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

46
57
67
66
68
69
70
72
73
73
75
77
81
84
81
71
63
56
51
48
43
41
40
45

Pressure (mb)

1023
1024
1024
1024
1024
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1026
1026
1026
1026
1026
1025
1025
1025
1025

Ozone (du)

357
357
356
356
355
354
352
352
355
355
352
348
346
346
345
344
345
343
341
341
340
339
339
338

Sunday 23

Waxing Gibbous 83%

18:29

01:03

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

Sun - Rise: 05:57, Set: 20:09, Transit: 13:02. Moon - Rise: 18:29, Set: 01:03. Civil Dark: 20:46 - 05:20. Nautical Dark: 21:34 - 04:33. Astro Dark: 22:29 - 03:38

Total Clouds (% Sky Obscured)

0
10
25
37
40
48
36
31
18
6
5
54
28
46
41
38
44
62
60
57
44
35
23
27

Low Clouds (% Sky Obscured)

0
0
4
16
3
8
0
0
0
0
0
23
21
16
21
38
43
52
44
46
30
24
20
20

Medium Clouds (% Sky Obscured)

0
6
17
22
25
29
24
17
5
1
0
0
0
0
0
0
0
37
34
23
28
17
0
2

High Clouds (% Sky Obscured)

0
2
2
2
2
4
2
9
11
4
5
44
10
46
34
3
5
3
6
5
2
2
2
1

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
1
1
1
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)

12
12
11
11
8
7
6
5
4
3
3
3
3
4
4
5
7
10
12
13
13
15
16
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
16
16
15
13
14
13
14
13
13
13
12
8
10
10
13
16
17
17
16
17
16
16
16

Dew Point (°C)

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

Relative Humidity (%)

54
60
61
66
66
67
69
70
72
75
75
77
76
80
76
68
62
59
57
55
55
54
54
54

Pressure (mb)

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

Ozone (du)

337
336
336
335
334
333
332
330
329
328
327
327
327
327
327
327
327
328
329
327
325
324
323
323

Monday 24

Waxing Gibbous 90%

18:58

02:17

17 OK
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 OK
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

Sun - Rise: 05:59, Set: 20:07, Transit: 13:02. Moon - Rise: 18:58, Set: 02:17. Civil Dark: 20:44 - 05:22. Nautical Dark: 21:31 - 04:35. Astro Dark: 22:26 - 03:41

Total Clouds (% Sky Obscured)

27
64
65
60
63
71
55
46
23
53
60
55
49
53
87
75
73
86
72
71
90
87
83
89

Low Clouds (% Sky Obscured)

18
18
21
21
24
32
15
10
17
18
27
29
28
31
36
36
23
21
20
10
9
7
5
3

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
2
25
6
3
3
6
3
2
39
18
27
39
25
44
37
31
28
29

High Clouds (% Sky Obscured)

3
20
15
15
15
20
15
23
7
25
25
25
26
25
25
33
35
36
35
6
42
52
58
72

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
1
2
1
4

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

56
59
66
71
75
77
78
81
82
83
83
85
86
87
85
81
75
69
64
60
58
58
60
63

Pressure (mb)

1019
1019
1018
1018
1018
1018
1018
1017
1017
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1013
1013

Ozone (du)

323
323
323
324
325
327
327
327
327
325
324
323
324
324
323
321
319
318
317
318
317
316
316
316

Tuesday 25

Waxing Gibbous 95%

19:19

03:35

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
16 Bad

Sun - Rise: 06:00, Set: 20:04, Transit: 13:01. Moon - Rise: 19:19, Set: 03:35. Civil Dark: 20:41 - 05:24. Nautical Dark: 21:28 - 04:37. Astro Dark: 22:22 - 03:44

Total Clouds (% Sky Obscured)

94
100
100
100
100
100
100
100
84
68
46
61
78
96
95
95
94
87
87
84
90
95
100
100

Low Clouds (% Sky Obscured)

2
0
0
0
0
37
47
56
31
55
45
51
40
42
71
65
62
40
41
27
35
38
40
26

Medium Clouds (% Sky Obscured)

40
63
88
87
88
90
91
92
84
68
46
61
71
85
81
74
68
58
69
71
57
15
5
20

High Clouds (% Sky Obscured)

86
100
100
100
100
100
100
100
78
57
40
38
55
74
81
81
72
33
13
10
73
85
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
4
2
3
9
5
9
9
9
9
9
9
9
9
3
1
1

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

Precipitation Probability (%)

8
0
1
1
2
10
37
71
81
77
63
56
41
15
26
30
11
14
19
24
28
46
82
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.5
0.6
0.6
0.3
0.2
0
0
0
0
0
0
0
0
0
0
0.7
1.1

Wind Speed/Direction (mph)

17
15
13
11
11
10
10
8
5
5
2
4
5
5
5
4
5
7
8
9
10
10
10
12

Chance of Frost

Temperature (°C)

20
20
20
19
19
18
18
18
17
17
17
16
17
17
17
18
20
21
22
23
24
24
24
24

Feels Like (°C)

16
17
17
17
17
17
16
17
18
17
19
17
17
17
17
19
21
22
22
23
24
24
24
23

Dew Point (°C)

14
15
15
16
16
16
15
15
16
16
16
15
16
16
16
16
16
16
16
16
16
15
15
17

Relative Humidity (%)

68
70
76
80
82
88
83
83
90
93
95
93
95
95
90
88
80
74
66
64
61
58
58
67

Pressure (mb)

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

Ozone (du)

317
317
317
315
312
311
310
309
309
309
309
309
309
310
311
311
312
313
314
314
313
313
313
313

Wednesday 26

Waxing Gibbous 99%

19:35

04:53

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
16 Bad

Sun - Rise: 06:02, Set: 20:02, Transit: 13:01. Moon - Rise: 19:35, Set: 04:53. Civil Dark: 20:39 - 05:25. Nautical Dark: 21:25 - 04:39. Astro Dark: 22:19 - 03:47

Total Clouds (% Sky Obscured)

100
100
100
100
64
69
100
75
100
81
100
100
100
78
66
75
83
89
91
94
92
92
90
91

Low Clouds (% Sky Obscured)

13
0
20
25
0
2
20
0
0
0
0
52
44
40
17
13
10
15
13
12
7
5
4
7

Medium Clouds (% Sky Obscured)

0
3
0
0
0
0
4
3
4
9
24
80
89
52
52
51
46
46
45
42
34
24
16
26

High Clouds (% Sky Obscured)

100
100
52
48
48
48
55
50
100
57
100
100
100
45
66
75
83
89
91
94
92
92
90
91

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
5
6
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
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
Light Rain

Precipitation Probability (%)

54
17
5
5
0
1
2
0
2
8
12
70
90
95
95
95
88
83
84
85
95
95
95
92

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.4
1
0.8
0.5
0.4
0.5
0.6
0.7
0.9
1
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

20
18
18
18
18
17
17
17
17
15
15
15
16
16
16
16
16
16
14
12
11
9
8
6

Relative Humidity (%)

87
83
82
88
89
92
93
89
89
82
80
81
85
89
89
82
77
71
61
53
46
41
36
32

Pressure (mb)

1011
1011
1011
1011
1011
1010
1011
1010
1010
1009
1009
1008
1008
1008
1008
1007
1007
1007
1007
1006
1006
1006
1006
1005

Ozone (du)

316
317
318
317
317
316
314
315
315
315
316
322
322
328
329
328
328
328
328
329
330
330
330
330

Thursday 27

Waxing Gibbous 100%

19:47

06:12

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
16 Bad

Sun - Rise: 06:04, Set: 20:00, Transit: 13:01. Moon - Rise: 19:47, Set: 06:12. Civil Dark: 20:37 - 05:27. Nautical Dark: 21:23 - 04:42. Astro Dark: 22:15 - 03:50

Total Clouds (% Sky Obscured)

95
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

10
15
15
14
12
24
34
45
58
72
86
89
88
88
87
89
88
84
84
83
73
66
57
63

Medium Clouds (% Sky Obscured)

36
44
46
46
48
52
58
64
77
87
97
98
99
100
100
100
100
100
100
100
93
86
78
61

High Clouds (% Sky Obscured)

95
100
100
100
100
100
100
100
99
97
89
92
96
100
100
100
100
100
100
100
89
79
68
57

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

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

Precipitation Probability (%)

80
77
64
44
4
12
9
5
26
19
13
68
81
91
80
75
70
53
42
40
41
41
37
36

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

34
35
37
41
45
52
53
55
58
58
58
59
67
78
90
86
83
79
71
63
56
53
49
46

Pressure (mb)

1005
1005
1005
1005
1005
1005
1004
1004
1003
1002
1002
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001

Ozone (du)

331
332
333
332
332
331
331
331
331
333
336
338
338
337
337
336
336
335
335
334
334
335
336
338

Friday 28

Full Moon 99%

19:57

07:31

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

Sun - Rise: 06:06, Set: 19:57, Transit: 13:00. 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)

100
100
100
100
100
94
91
88
84
83
81
80
81
81
84
86
91
92
93
92

Low Clouds (% Sky Obscured)

67
71
68
65
66
46
38
38
35
32
29
45
61
75
77
80
83
83
84
83

Medium Clouds (% Sky Obscured)

43
22
26
30
39
47
50
61
62
57
61
53
44
36
36
37
42
42
36
31

High Clouds (% Sky Obscured)

60
65
65
66
66
70
78
82
81
83
81
75
64
56
50
50
45
40
29
17

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

30
16
25
26
24
20
19
18
35
38
38
74
93
95
95
95
95
81
65
69

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.3
0.6
0.8
1
1
1.2
0.5
0.3
0.3

Wind Speed/Direction (mph)

8
7
6
6
6
6
7
8
9
9
10
11
12
14
15
15
15
15
14
13

Chance of Frost

Temperature (°C)

19
19
19
18
17
17
16
16
16
16
16
16
16
16
16
16
17
17
18
18

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

48
51
54
57
61
64
66
71
73
77
78
80
78
77
74
72
67
64
62
59

Pressure (mb)

1001
1001
1002
1002
1002
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1004
1004
1004
1004

Ozone (du)

338
339
339
340
341
342
341
341
340
338
337
335
335
334
334
334
335
335
334
333

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

Generated: 22/08/26 17:31:14. Forecast: 22/08/26 to 28/08/26. Timezone: UTC+1.00