Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 23

Waxing Gibbous 60%

12:35

03:18

02 OK
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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 06:06, Set: 20:25, Transit: 13:15. Moon - Rise: 12:35, Set: 03:18. Civil Dark: 21:01 - 05:30. Nautical Dark: 21:46 - 04:45. Astro Dark: 22:38 - 03:53

Total Clouds (% Sky Obscured)

28
47
83
98
99
98
97
99
99
99
100
98
97
96
93
96
93
98
100
97
96
100
100
100

Low Clouds (% Sky Obscured)

28
30
58
88
97
81
45
62
52
73
100
86
77
92
64
72
37
72
97
80
94
100
100
100

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
28
0
43
20
10
1
0
0
0
0
1
13
20
28
5
10
60
71

High Clouds (% Sky Obscured)

0
25
63
84
75
95
95
98
98
98
99
95
86
73
81
86
90
94
95
94
33
9
4
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

Precipitation Type

None
None
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
Light Rain

Precipitation Probability (%)

0
0
3
3
4
4
3
3
3
3
0
3
0
0
0
0
3
4
6
11
16
20
24
26

Precipitation Amount (mm)

0
0
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0
0.01
0
0
0
0
0.01
0.01
0.03
0.07
0.15
0.25
0.4
0.52

Wind Speed/Direction (mph)

10
10
11
10
10
10
9
9
11
11
12
13
14
15
15
15
15
14
14
13
12
13
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
5
5
5
4
5
6
7
7
10
11
11
11
11
11
11
11
10
7
6
6
6
6
7

Dew Point (°C)

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

Relative Humidity (%)

91
92
94
97
100
100
97
92
89
87
85
84
83
83
82
82
84
86
91
97
100
100
100
100

Pressure (mb)

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

Ozone (du)

356
355
354
354
353
352
350
349
348
347
346
345
343
341
339
338
336
334
333
331
329
328
328
327

Tuesday 24

Waxing Gibbous 71%

13:49

03:57

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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 OK

Sun - Rise: 06:04, Set: 20:27, Transit: 13:15. Moon - Rise: 13:49, Set: 03:57. Civil Dark: 21:03 - 05:28. Nautical Dark: 21:48 - 04:42. Astro Dark: 22:41 - 03:50

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
59
16

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
55
16

Medium Clouds (% Sky Obscured)

98
94
80
81
85
66
70
39
38
86
49
49
73
88
87
63
81
98
97
98
100
100
48
1

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
5
1
24
23
72
62
1
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

8
5
2
2
3
3
6
9
10
10
8
7
6
5
4
6
7
8
7
6
5
6
7
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

25
23
23
26
31
33
29
23
18
14
12
12
13
14
15
15
15
15
13
10
9
8
8
8

Precipitation Amount (mm)

0.49
0.4
0.37
0.43
0.55
0.64
0.6
0.51
0.4
0.26
0.17
0.17
0.2
0.25
0.27
0.25
0.22
0.19
0.12
0.07
0.06
0.06
0.06
0.05

Wind Speed/Direction (mph)

13
13
12
11
10
10
9
7
7
6
5
8
9
9
10
8
9
9
8
7
7
7
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

99
97
97
97
99
100
100
100
100
98
96
94
92
90
89
89
90
91
92
92
93
95
96
97

Pressure (mb)

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

Ozone (du)

327
326
326
326
326
325
325
324
324
323
323
323
323
323
324
325
326
328
331
335
339
342
344
347

Wednesday 25

Waxing Gibbous 81%

15:04

04:29

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

Sun - Rise: 06:02, Set: 20:28, Transit: 13:15. Moon - Rise: 15:04, Set: 04:29. Civil Dark: 21:04 - 05:26. Nautical Dark: 21:50 - 04:40. Astro Dark: 22:44 - 03:46

Total Clouds (% Sky Obscured)

9
14
20
25
15
13
23
28
25
27
26
35
33
57
55
100
53
100
100
100
100
100
100
14

Low Clouds (% Sky Obscured)

9
13
19
23
13
11
18
16
13
13
21
16
19
38
26
32
36
26
26
26
26
26
26
14

Medium Clouds (% Sky Obscured)

2
6
9
8
9
8
16
22
21
20
12
31
25
52
52
100
40
100
100
100
100
100
100
2

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
1
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

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

Precipitation Probability (%)

7
6
5
4
6
7
7
6
7
10
14
15
12
8
7
8
9
11
13
15
17
17
16
15

Precipitation Amount (mm)

0.04
0.02
0.01
0.01
0.02
0.03
0.03
0.03
0.05
0.13
0.32
0.43
0.26
0.09
0.06
0.06
0.08
0.11
0.15
0.21
0.27
0.27
0.26
0.22

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
5
4
4
4
5
6
7
8
11
11
11
12
12
12
11
10
7
6
6
5
5
5
4

Dew Point (°C)

7
7
7
6
6
7
7
8
8
8
8
8
8
8
8
8
8
8
7
7
7
7
7
6

Relative Humidity (%)

98
99
100
100
100
100
95
91
87
85
84
82
79
77
76
79
84
88
91
92
92
92
92
91

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1015
1015
1015
1015
1015
1016
1016
1016
1016

Ozone (du)

349
350
351
351
350
349
348
346
346
346
347
349
350
353
355
356
357
358
360
362
365
369
373
377

Thursday 26

Waxing Gibbous 89%

16:18

04:57

02 OK
03 OK
04 OK
05 OK
06 OK
07 OK
08 OK
09 OK
10 OK
11 OK
12 OK
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

Sun - Rise: 06:00, Set: 20:30, Transit: 13:15. Moon - Rise: 16:18, Set: 04:57. Civil Dark: 21:06 - 05:24. Nautical Dark: 21:52 - 04:38. Astro Dark: 22:47 - 03:43

Total Clouds (% Sky Obscured)

14
14
14
14
14
28
28
28
28
28
28
66
66
66
66
66
66
67
67
67
67
67
67
71

Low Clouds (% Sky Obscured)

14
14
14
14
14
23
23
23
23
23
23
56
56
56
56
56
56
34
34
34
34
34
34
38

Medium Clouds (% Sky Obscured)

2
2
2
2
2
20
20
20
20
20
20
12
12
12
12
12
12
6
6
6
6
6
6
23

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
31
31
31
31
31
31
52
52
52
52
52
52
54

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

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

Precipitation Probability (%)

15
10
7
6
6
6
0
0
3
3
4
4
4
5
6
6
5
4
4
0
0
0
0
0

Precipitation Amount (mm)

0.15
0.05
0.02
0.01
0.01
0.02
0
0
0.01
0.01
0.01
0.01
0.02
0.03
0.04
0.03
0.02
0.01
0.01
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
4
3
2
2
2
3
5
6
7
10
10
11
11
11
11
10
7
6
5
4
4
3
3

Dew Point (°C)

6
5
5
5
4
5
5
5
5
5
5
5
5
4
4
4
4
4
4
4
3
3
3
3

Relative Humidity (%)

89
87
87
89
92
89
86
79
75
71
69
67
65
64
64
65
68
70
73
77
81
83
85
87

Pressure (mb)

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

Ozone (du)

380
381
382
381
379
378
377
376
376
377
379
380
379
378
376
375
373
372
372
373
373
373
372
372

Friday 27

Waxing Gibbous 95%

17:32

05:23

02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 OK
08 OK
09 OK
10 Good
11 OK
12 OK
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

Sun - Rise: 05:58, Set: 20:31, Transit: 13:15. Moon - Rise: 17:32, Set: 05:23. Civil Dark: 21:08 - 05:22. Nautical Dark: 21:54 - 04:35. Astro Dark: 22:49 - 03:40

Total Clouds (% Sky Obscured)

71
71
71
71
71
17
17
17
17
17
17
92
92
92
92
92
92
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

38
38
38
38
38
17
17
17
17
17
17
78
78
78
78
78
78
48
48
48
48
48
48
0

Medium Clouds (% Sky Obscured)

23
23
23
23
23
3
3
3
3
3
3
54
54
54
54
54
54
52
52
52
52
52
52
99

High Clouds (% Sky Obscured)

54
54
54
54
54
0
0
0
0
0
0
0
0
0
0
0
0
100
100
100
100
100
100
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
Very Light Rain
Very Light Rain
Very Light Rain
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

Precipitation Probability (%)

0
0
0
9
11
11
9
6
0
4
7
8
9
9
9
8
8
7
7
7
7
0
0
0

Precipitation Amount (mm)

0
0
0
0.02
0.05
0.07
0.04
0.01
0
0.01
0.04
0.08
0.1
0.12
0.11
0.08
0.05
0.03
0.02
0.01
0.01
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
2
2
2
2
3
5
7
8
8
10
10
10
10
10
10
8
8
7
6
6
6
7
5

Dew Point (°C)

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

Relative Humidity (%)

91
94
95
95
94
91
85
78
74
71
69
68
68
68
68
68
67
67
68
70
72
73
74
75

Pressure (mb)

1018
1017
1017
1017
1016
1016
1016
1017
1017
1017
1017
1017
1016
1016
1016
1016
1015
1015
1016
1016
1016
1016
1016
1016

Ozone (du)

371
370
369
369
369
370
371
372
373
374
375
375
375
375
376
377
378
380
381
382
384
384
385
385

Saturday 28

Waxing Gibbous 99%

18:44

05:47

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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 05:56, Set: 20:33, Transit: 13:15. Moon - Rise: 18:44, Set: 05:47. Civil Dark: 21:10 - 05:20. Nautical Dark: 21:57 - 04:33. Astro Dark: 22:52 - 03:37

Total Clouds (% Sky Obscured)

99
99
99
99
99
96
96
96
96
96
96
89
89
89
89
89
89
99
99
99
99
99
99
99

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
26
26
26
26
26
26
9
9
9
9
9
9
23

Medium Clouds (% Sky Obscured)

99
99
99
99
99
79
79
79
79
79
79
85
85
85
85
85
85
98
98
98
98
98
98
98

High Clouds (% Sky Obscured)

0
0
0
0
0
89
89
89
89
89
89
36
36
36
36
36
36
98
98
98
98
98
98
52

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

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
Very Light Rain
Very Light Rain
Very Light Rain
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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
4
14
16
16
16
16
15
15
15
15
14
13
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.01
0.04
0.14
0.23
0.22
0.17
0.12
0.12
0.13
0.14
0.08
0.02
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
80
82
84
84
82
77
73
70
68
66
66
66
67
69
72
76
81
85
88
93
95
100
100

Pressure (mb)

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

Ozone (du)

386
387
387
386
385
384
383
383
383
383
383
383
384
384
385
387
389
391
392
393
394
394
394
394

Sunday 29

Waxing Gibbous 100%

19:54

06:11

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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 05:54, Set: 20:35, Transit: 13:15. Moon - Rise: 19:54, Set: 06:11. Civil Dark: 21:11 - 05:18. Nautical Dark: 21:59 - 04:30. Astro Dark: 22:55 - 03:34

Total Clouds (% Sky Obscured)

99
99
99
99
99
98
98
98
98
98
98
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

23
23
23
23
23
73
73
73
73
73
73
100
100
100
100
100
100
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

98
98
98
98
98
97
97
97
97
97
97
6
6
6
6
6
6
99
99
99
99
99
99
100

High Clouds (% Sky Obscured)

52
52
52
52
52
3
3
3
3
3
3
41
41
41
41
41
41
99
99
99
99
99
99
94

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

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

Precipitation Probability (%)

0
0
0
0
12
13
17
18
18
18
18
18
18
18
18
17
16
15
14
12
0
0
0
10

Precipitation Amount (mm)

0
0
0
0
0.01
0.04
0.15
0.41
0.66
0.7
0.66
0.62
0.54
0.45
0.37
0.27
0.18
0.1
0.04
0.01
0
0
0
0.01

Wind Speed/Direction (mph)

5
5
6
6
7
8
8
9
9
10
10
10
11
11
12
12
13
13
12
12
11
11
10
8

Chance of Frost

Temperature (°C)

3
3
4
4
4
4
5
6
6
7
7
8
8
8
8
8
8
8
8
7
6
6
5
5

Feels Like (°C)

0
1
1
2
1
1
2
3
3
4
5
5
5
5
5
5
5
5
4
4
3
3
2
2

Dew Point (°C)

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

Relative Humidity (%)

100
100
96
94
96
96
96
93
90
87
84
81
81
80
80
80
81
81
81
81
82
82
83
84

Pressure (mb)

1012
1011
1011
1011
1011
1011
1011
1011
1011
1011
1010
1010
1010
1010
1010
1010
1010
1010
1010
1011
1011
1012
1012
1012

Ozone (du)

394
395
396
397
399
401
401
401
401
403
405
407
408
408
409
409
409
409
409
408
408
407
407
407

Forecast for Upton Cross, Cornwall, UK (50.54,-4.43)

Generated: 23/04/18 02:18:08. Forecast: 23/04/18 to 29/04/18. Timezone: UTC+1.00