Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 18

Waning Crescent 14%

03:15

18:10

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

Sun - Rise: 06:12, Set: 20:29, Transit: 13:20. Moon - Rise: 03:15, Set: 18:10. Civil Dark: 21:05 - 05:36. Nautical Dark: 21:50 - 04:51. Astro Dark: 22:42 - 04:00

Total Clouds (% Sky Obscured)

53
49
70
63
38
34
45
42
56
68
42
53
45
40
28
27
30
34
36
28
41
39
42
54

Low Clouds (% Sky Obscured)

41
27
29
38
30
31
22
17
33
54
38
49
41
30
27
27
29
29
24
22
31
31
22
25

Medium Clouds (% Sky Obscured)

41
37
31
33
29
23
40
32
47
59
14
16
23
31
5
1
2
12
27
19
31
28
37
48

High Clouds (% Sky Obscured)

0
31
55
39
0
0
1
9
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

Precipitation Type

Very Light Rain
Light Rain
Light Rain
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

Precipitation Probability (%)

24
22
23
21
17
14
6
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0

Precipitation Amount (mm)

0.3
2.34
0.5
0.43
0.32
0.23
0.13
0.06
0
0
0
0
0
0
0
0
0.04
0.05
0.04
0.04
0.05
0.04
0
0

Wind Speed/Direction (mph)

16
18
19
20
21
21
18
17
20
19
19
18
17
16
16
15
14
13
11
11
12
12
13
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
11
11
11
11
11
11
10
10
10
10
10
11
11
11
11
11
11
11
11
11
11
11
11

Relative Humidity (%)

89
78
78
78
77
76
76
77
80
81
83
84
85
86
87
87
86
85
86
89
90
89
85
81

Pressure (mb)

1014
1014
1014
1015
1015
1015
1015
1016
1016
1016
1016
1017
1017
1018
1018
1018
1018
1019
1019
1019
1020
1020
1021
1021

Ozone (du)

354
364
370
368
362
357
354
352
349
347
346
345
344
345
344
343
342
340
338
336
335
334
333
331

Saturday 19

Waning Crescent 7%

04:25

19:02

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

Sun - Rise: 06:13, Set: 20:27, Transit: 13:19. Moon - Rise: 04:25, Set: 19:02. Civil Dark: 21:03 - 05:38. Nautical Dark: 21:47 - 04:53. Astro Dark: 22:39 - 04:02

Total Clouds (% Sky Obscured)

45
42
31
28
27
55
88
93
92
90
55
35
20
75
94
94
98
92
57
100
100
100
100
99

Low Clouds (% Sky Obscured)

25
23
30
28
27
55
87
44
68
88
41
23
11
4
6
31
32
25
35
46
32
3
37
98

Medium Clouds (% Sky Obscured)

41
38
6
0
0
0
0
0
13
3
24
16
6
9
16
30
82
39
45
100
100
100
100
92

High Clouds (% Sky Obscured)

0
0
0
0
0
1
12
88
77
13
0
1
6
72
92
89
92
88
31
100
95
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
8
6
6
7
8

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

Precipitation Probability (%)

0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
4
12
15
22
25
26
28
29

Precipitation Amount (mm)

0
0
0.04
0
0
0
0
0
0
0
0
0
0
0
0
0
0.09
0.17
0.19
0.27
0.36
0.4
0.58
0.84

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
75
74
73
72
71
70
71
73
75
77
78
79
80
82
82
82
83
85
89
92
94
93
93

Pressure (mb)

1022
1022
1022
1022
1022
1023
1023
1023
1023
1023
1023
1024
1024
1023
1023
1023
1023
1023
1022
1022
1022
1022
1022
1022

Ozone (du)

328
325
321
319
317
315
312
310
309
309
309
308
307
305
303
301
299
297
296
295
294
293
291
289

Sunday 20

Waning Crescent 2%

05:38

19:45

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:15, Set: 20:25, Transit: 13:19. Moon - Rise: 05:38, Set: 19:45. Civil Dark: 21:01 - 05:39. Nautical Dark: 21:45 - 04:55. Astro Dark: 22:36 - 04:05

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
100
100

Low Clouds (% Sky Obscured)

98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

99
98
94
39
69
83
84
93
78
89
66
43
85
63
70
10
73
31
67
95
59
59
59
59

High Clouds (% Sky Obscured)

30
77
84
15
0
0
0
10
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
0
0
0
100
100
100
0
100
100
100
100
100
100
100
100
100
100
100
100

Precipitation Type

Light Rain
Light Rain
Light Rain
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

Precipitation Probability (%)

27
24
22
19
17
15
14
9
6
3
2
1
1
2
2
2
2
1
1
0
0
0
1
0

Precipitation Amount (mm)

0.91
0.88
0.8
0.65
0.46
0.33
0.24
0.18
0.13
0.09
0.06
0.05
0.05
0.06
0.06
0.06
0.06
0.05
0.03
0
0
0
0.03
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
16
16
16
17
17
18
18
18
17
17
17
17
17
17
17
17
17
17
16
15
15
16
17

Feels Like (°C)

15
16
16
17
17
18
18
18
18
18
17
17
17
17
17
17
17
17
17
16
15
15
16
17

Dew Point (°C)

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

Relative Humidity (%)

92
92
93
93
92
90
90
92
93
94
94
93
93
92
92
92
91
90
91
93
95
96
93
88

Pressure (mb)

1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

288
288
288
288
289
289
289
288
288
287
287
287
287
287
286
285
284
284
283
283
283
283
283
283

Monday 21

New Moon 0%

06:53

20:21

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

Sun - Rise: 06:16, Set: 20:23, Transit: 13:19. Moon - Rise: 06:53, Set: 20:21. Civil Dark: 20:58 - 05:41. Nautical Dark: 21:43 - 04:57. Astro Dark: 22:33 - 04:07

Total Clouds (% Sky Obscured)

100
100
83
83
83
83
83
83
19
19
19
19
19
19
57
57
57
57
57
57
83
83
83
83

Low Clouds (% Sky Obscured)

100
100
83
83
83
83
83
83
13
13
13
13
13
13
5
5
5
5
5
5
3
3
3
3

Medium Clouds (% Sky Obscured)

59
59
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
34
34
34
34

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
7
7
7
7
7
7
55
55
55
55
55
55
81
81
81
81

ISS Passover

Visibility (miles)

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

Fog (%)

100
100
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
82
80
80
79
78
78
79
81
87
88
88
87
86
86
86
87
88
91
96
100
99
96
91

Pressure (mb)

1022
1022
1021
1021
1021
1021
1020
1020
1020
1020
1020
1020
1019
1019
1019
1018
1018
1017
1017
1016
1016
1016
1016
1015

Ozone (du)

283
283
283
283
284
284
284
284
284
284
285
285
285
285
285
285
285
284
285
285
285
285
285
285

Tuesday 22

Waxing Crescent 1%

08:07

20:51

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

Sun - Rise: 06:18, Set: 20:21, Transit: 13:19. Moon - Rise: 08:07, Set: 20:51. Civil Dark: 20:56 - 05:43. Nautical Dark: 21:40 - 04:59. Astro Dark: 22:30 - 04:10

Total Clouds (% Sky Obscured)

83
83
45
45
45
45
45
45
35
35
35
35
35
35
98
98
98
98
98
98
99
99
99
99

Low Clouds (% Sky Obscured)

3
3
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
84
84
84
84

Medium Clouds (% Sky Obscured)

34
34
23
23
23
23
23
23
0
0
0
0
0
0
35
35
35
35
35
35
35
35
35
35

High Clouds (% Sky Obscured)

81
81
34
34
34
34
34
34
35
35
35
35
35
35
96
96
96
96
96
96
97
97
97
97

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

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.04
0.06
0.05
0.03
0
0
0.03
0.03
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
81
78
77
77
76
77
81
85
88
91
92
91
88
87
85
84
82
82
84
86
86
85
82

Pressure (mb)

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

Ozone (du)

285
284
284
284
285
286
286
287
288
289
289
290
291
291
292
293
295
296
297
299
300
301
302
303

Wednesday 23

Waxing Crescent 4%

09:18

21:19

11 Bad
12 Bad
13 Bad
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 OK
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:19, Set: 20:19, Transit: 13:18. Moon - Rise: 09:18, Set: 21:19. Civil Dark: 20:54 - 05:44. Nautical Dark: 21:38 - 05:01. Astro Dark: 22:27 - 04:12

Total Clouds (% Sky Obscured)

99
99
73
73
73
73
73
73
21
21
21
21
21
21
33
33
33
33
33
33
98
98
98
98

Low Clouds (% Sky Obscured)

84
84
3
3
3
3
3
3
0
0
0
0
0
0
21
21
21
21
21
21
8
8
8
8

Medium Clouds (% Sky Obscured)

35
35
42
42
42
42
42
42
16
16
16
16
16
16
6
6
6
6
6
6
16
16
16
16

High Clouds (% Sky Obscured)

97
97
54
54
54
54
54
54
8
8
8
8
8
8
14
14
14
14
14
14
98
98
98
98

ISS Passover

Visibility (miles)

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

Precipitation Amount (mm)

0.03
0.04
0.05
0.04
0.03
0.03
0.04
0.04
0.04
0
0
0
0
0.04
0.04
0.03
0
0
0
0.04
0.07
0.06
0.03
0.03

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13

Relative Humidity (%)

79
77
77
77
77
76
77
79
82
84
86
87
89
91
93
93
91
90
91
92
95
94
92
88

Pressure (mb)

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

Ozone (du)

302
302
301
300
300
299
299
299
299
299
299
300
300
301
301
301
302
302
302
302
302
303
304
305

Thursday 24

Waxing Crescent 10%

10:27

21:44

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

Sun - Rise: 06:21, Set: 20:17, Transit: 13:18. Moon - Rise: 10:27, Set: 21:44. Civil Dark: 20:52 - 05:46. Nautical Dark: 21:35 - 05:03. Astro Dark: 22:24 - 04:15

Total Clouds (% Sky Obscured)

98
98
14
14
14
14
14
14
27
27
27
27
27
27
59
59
59
59
59
59
100
100
100
100

Low Clouds (% Sky Obscured)

8
8
0
0
0
0
0
0
0
0
0
0
0
0
38
38
38
38
38
38
100
100
100
100

Medium Clouds (% Sky Obscured)

16
16
11
11
11
11
11
11
27
27
27
27
27
27
30
30
30
30
30
30
2
2
2
2

High Clouds (% Sky Obscured)

98
98
4
4
4
4
4
4
0
0
0
0
0
0
27
27
27
27
27
27
1
1
1
1

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
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

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

Precipitation Amount (mm)

0.03
0.03
0.03
0.04
0.04
0.05
0.03
0
0
0
0
0
0
0
0
0
0
0
0
0.03
0.05
0.05
0.05
0.04

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
81
79
78
75
73
73
75
78
80
82
83
83
83
84
84
84
83
84
87
89
89
86
83

Pressure (mb)

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

Ozone (du)

306
307
308
309
310
310
310
310
309
309
309
309
309
309
309
309
308
308
307
308
308
308
308
307

Forecast for Dartmoor National Park, Yelverton, Devon PL20 6JD, UK (50.47,-4.09)

Generated: 18/08/17 11:50:01. Forecast: 18/08/17 to 24/08/17. Timezone: UTC+1.00