Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waning Gibbous 95%

22:44

06:56

14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 OK
22 OK
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 Bad

Sun - Rise: 04:56, Set: 20:55, Transit: 12:56. Moon - Rise: 22:44, Set: 06:56. Civil Dark: 21:39 - 04:12. Nautical Dark: 22:42 - 03:09. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

56
41
70
49
30
34
38
31
28
9
4
1
0
0
0
0
0
0
0
0
46
72
88
96

Low Clouds (% Sky Obscured)

32
31
48
1
7
6
16
18
17
1
3
0
0
0
0
0
0
0
0
0
46
71
77
85

Medium Clouds (% Sky Obscured)

48
37
69
48
30
32
31
23
23
9
2
0
0
0
0
0
0
0
0
0
0
0
0
2

High Clouds (% Sky Obscured)

0
1
0
0
0
2
2
2
1
0
0
0
0
0
0
0
0
0
0
0
0
2
46
77

ISS Passover

Visibility (miles)

4
3
5
5
3
2
5
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

-
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
Very Light Rain
Very 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
None
None
None
None
None

Precipitation Probability (%)

7
9
12
15
18
21
18
9
4
3
2
1
1
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.11
0.01
0.16
0.19
0.19
0.18
0.15
0.12
0.09
0.06
0.03
0.02
0.01
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
8
7
7
7
6
6
5
5
5
6
6
7
8
8
8
9
9
9
9
9
9
9
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
19
19
18
18
17
16
14
13
12
11
9
8
7
6
6
6
7
10
12
14
16
17
17

Dew Point (°C)

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

Relative Humidity (%)

60
58
60
62
64
67
71
76
79
82
84
84
83
82
81
82
86
86
83
77
72
67
62
59

Pressure (mb)

1012
1012
1012
1013
1013
1013
1013
1014
1014
1015
1015
1015
1015
1015
1016
1016
1016
1017
1017
1017
1018
1018
1018
1018

Ozone (du)

359
359
360
362
365
367
367
367
366
363
360
356
354
351
349
347
345
344
342
341
341
341
343
345

Tuesday 21

Waning Gibbous 89%

23:45

07:45

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

Sun - Rise: 04:55, Set: 20:57, Transit: 12:56. Moon - Rise: 23:45, Set: 07:45. Civil Dark: 21:41 - 04:10. Nautical Dark: 22:44 - 03:06. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

91
100
73
95
62
45
13
23
15
6
4
2
2
2
13
74
85
82
98
56
12
33
59
91

Low Clouds (% Sky Obscured)

37
46
4
1
5
1
6
3
0
1
2
2
2
0
2
6
2
1
0
0
2
16
45
41

Medium Clouds (% Sky Obscured)

82
100
73
95
61
45
13
23
15
6
3
2
2
2
12
74
85
82
98
56
12
29
46
90

High Clouds (% Sky Obscured)

56
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)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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
2
2
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0.01
0.01
0.01
0.01
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
19
19
19
19
18
16
14
12
11
10
9
8
8
7
7
8
9
11
13
15
16
17
18

Feels Like (°C)

18
19
19
19
19
18
16
14
12
11
8
7
6
6
5
6
6
8
11
13
15
16
17
18

Dew Point (°C)

9
9
9
9
9
8
7
6
5
4
3
2
2
1
1
2
2
3
4
5
6
6
7
7

Relative Humidity (%)

56
53
52
52
52
54
57
60
62
62
62
62
63
65
66
67
67
66
63
59
55
53
51
50

Pressure (mb)

1018
1018
1018
1018
1018
1018
1018
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1021

Ozone (du)

348
353
354
350
344
339
337
336
336
335
335
334
334
334
334
333
333
332
331
330
330
329
329
330

Wednesday 22

Waning Gibbous 82%

00:35

08:40

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

Sun - Rise: 04:53, Set: 20:58, Transit: 12:56. Moon - Rise: 00:35, Set: 08:40. Civil Dark: 21:43 - 04:09. Nautical Dark: 22:46 - 03:04. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
98
78
92
59
43
59
47
44
36
23
19
3
2
0
1
2
1
1
1
1
1
1
93

Low Clouds (% Sky Obscured)

1
2
2
2
1
9
6
23
26
27
23
19
3
2
0
0
2
1
1
1
1
1
1
67

Medium Clouds (% Sky Obscured)

100
98
78
92
59
43
58
45
39
31
5
1
1
0
0
0
0
0
0
0
0
0
0
11

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
77

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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 (%)

1
2
2
2
2
2
2
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.01
0.02
0.04
0.06
0.08
0.08
0.07
0.06
0.04
0.02
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
19
20
20
20
19
17
15
13
12
11
11
10
9
9
9
10
11
13
15
17
18
20
21

Feels Like (°C)

19
19
20
20
20
19
17
15
13
12
11
11
8
8
8
8
9
11
13
15
17
18
20
21

Dew Point (°C)

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

Relative Humidity (%)

47
45
44
44
46
49
53
59
63
67
70
72
73
73
74
74
73
71
66
60
56
52
48
45

Pressure (mb)

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

Ozone (du)

331
333
334
333
332
331
332
333
334
334
333
333
333
333
334
337
342
344
343
340
338
338
339
340

Thursday 23

Waning Gibbous 73%

01:15

09:42

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

Sun - Rise: 04:52, Set: 21:00, Transit: 12:57. Moon - Rise: 01:15, Set: 09:42. Civil Dark: 21:44 - 04:07. Nautical Dark: 22:49 - 03:02. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

93
93
93
93
93
45
45
45
45
45
45
30
30
30
30
30
30
2
2
2
2
2
2
89

Low Clouds (% Sky Obscured)

67
67
67
67
67
14
14
14
14
14
14
26
26
26
26
26
26
2
2
2
2
2
2
41

Medium Clouds (% Sky Obscured)

11
11
11
11
11
44
44
44
44
44
44
26
26
26
26
26
26
0
0
0
0
0
0
88

High Clouds (% Sky Obscured)

77
77
77
77
77
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
8
6
5

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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
2
2
3
3
2
2
1
1
1
3
10
26
35
37
34
35
32
27

Precipitation Amount (mm)

0
0
0
0
0
0
0.01
0.03
0.05
0.04
0.02
0.01
0.01
0.01
0.02
0.04
0.08
0.13
0.15
0.16
0.19
0.27
0.38
0.46

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

43
43
44
47
50
53
55
58
60
61
61
62
67
74
80
85
88
89
87
84
79
75
72
68

Pressure (mb)

1016
1016
1016
1015
1015
1015
1014
1014
1014
1014
1014
1013
1013
1013
1012
1012
1012
1012
1012
1011
1011
1011
1011
1010

Ozone (du)

342
343
344
345
345
346
347
348
350
352
355
357
359
360
361
363
365
366
366
366
365
362
358
354

Friday 24

Waning Gibbous 64%

01:48

10:46

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

Sun - Rise: 04:51, Set: 21:01, Transit: 12:57. Moon - Rise: 01:48, Set: 10:46. Civil Dark: 21:46 - 04:06. Nautical Dark: 22:51 - 03:00. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

89
89
89
89
89
73
73
73
73
73
73
8
8
8
8
8
8
75
75
75
75
75
75
97

Low Clouds (% Sky Obscured)

41
41
41
41
41
24
24
24
24
24
24
5
5
5
5
5
5
0
0
0
0
0
0
97

Medium Clouds (% Sky Obscured)

88
88
88
88
88
67
67
67
67
67
67
6
6
6
6
6
6
34
34
34
34
34
34
16

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
73
73
73
73
73
73
0

ISS Passover

Visibility (miles)

5
6
7
7
7
8
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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

Precipitation Probability (%)

21
19
19
18
17
13
5
2
1
1
1
1
1
0
0
0
2
0
0
0
0
0
0
2

Precipitation Amount (mm)

0.46
0.43
0.38
0.33
0.28
0.21
0.12
0.05
0.01
0.01
0.01
0.01
0.01
0
0
0
0.01
0
0
0
0
0
0
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
61
59
60
61
62
62
63
65
69
74
78
80
81
82
83
83
81
77
71
67
66
65
64

Pressure (mb)

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

Ozone (du)

352
350
348
346
344
343
346
349
352
351
348
345
344
344
343
341
339
338
336
333
331
328
324
321

Saturday 25

Waning Gibbous 54%

02:14

11:52

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
12 Bad
13 Bad

Sun - Rise: 04:50, Set: 21:02, Transit: 12:57. Moon - Rise: 02:14, Set: 11:52. Civil Dark: 21:48 - 04:04. Nautical Dark: 22:54 - 02:58. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

97
97
97
97
97
56
56
56
56
56
56
80
80
80
80
80
80
98
98
98
98
98
98
95

Low Clouds (% Sky Obscured)

97
97
97
97
97
50
50
50
50
50
50
17
17
17
17
17
17
94
94
94
94
94
94
95

Medium Clouds (% Sky Obscured)

16
16
16
16
16
23
23
23
23
23
23
75
75
75
75
75
75
0
0
0
0
0
0
1

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
10
10
10
10
10
10
71
71
71
71
71
71
5

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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
Very Light Rain
Very Light Rain

Precipitation Probability (%)

2
2
2
1
1
1
1
1
1
1
0
0
0
0
0
0
0
3
3
3
4
5
7
8

Precipitation Amount (mm)

0.02
0.02
0.03
0.03
0.03
0.03
0.03
0.02
0.01
0.01
0
0
0
0
0
0
0
0.01
0.01
0.01
0.02
0.05
0.11
0.16

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
59
57
56
57
58
62
68
73
76
78
81
84
86
88
87
86
83
79
76
74
74
76
75

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016

Ozone (du)

318
316
314
313
312
311
309
306
304
302
300
298
297
296
296
297
299
300
302
304
305
306
305
305

Sunday 26

Third Quarter 45%

02:36

12:58

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
12 Bad
13 Bad

Sun - Rise: 04:49, Set: 21:04, Transit: 12:57. Moon - Rise: 02:36, Set: 12:58. Civil Dark: 21:49 - 04:03. Nautical Dark: 22:56 - 02:56. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

95
95
95
95
95
86
86
86
86
86
86
88
88
88
88
88
88
54
54
54
54
54
54
100

Low Clouds (% Sky Obscured)

95
95
95
95
95
22
22
22
22
22
22
33
33
33
33
33
33
20
20
20
20
20
20
78

Medium Clouds (% Sky Obscured)

1
1
1
1
1
4
4
4
4
4
4
41
41
41
41
41
41
52
52
52
52
52
52
100

High Clouds (% Sky Obscured)

5
5
5
5
5
82
82
82
82
82
82
76
76
76
76
76
76
0
0
0
0
0
0
27

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
8
6
6
8
10
10
10
10
10
10
10
10
10
10
10
10
10

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
Very 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
Very Light Rain
Very Light Rain

Precipitation Probability (%)

5
3
3
3
4
6
8
11
12
10
6
5
4
3
3
2
0
2
0
0
2
3
8
19

Precipitation Amount (mm)

0.16
0.12
0.1
0.09
0.08
0.09
0.17
0.31
0.37
0.21
0.05
0.01
0.01
0.01
0.02
0.01
0
0.01
0
0
0.01
0.03
0.11
0.19

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
69
66
65
65
65
67
70
74
79
83
87
89
89
89
88
86
84
81
79
77
78
79
78

Pressure (mb)

1015
1015
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1011
1011

Ozone (du)

305
305
305
304
304
306
310
315
320
322
324
325
324
323
322
323
324
324
323
321
319
317
315
313

Forecast for Bourn, Cambridgeshire, UK (52.20,-0.05)

Generated: 20/05/19 14:34:07. Forecast: 20/05/19 to 26/05/19. Timezone: UTC+1.00