Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 18

Waxing Gibbous 85%

13:08

04:59

12 Good
13 Good
14 Good
15 Good
16 Good
17 Good
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

Sun - Rise: 07:59, Set: 16:27, Transit: 12:14. Moon - Rise: 13:08, Set: 04:59. Civil Dark: 17:05 - 07:21. Nautical Dark: 17:47 - 06:40. Astro Dark: 18:27 - 06:00

Total Clouds (% Sky Obscured)

1
1
1
3
1
13
99
99
100
100
98
100
100
100
100
100
100
100
100
100
100
99
100
100

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
1
20
31
42
85
96
100
100
100
100
100
98
98
100

High Clouds (% Sky Obscured)

0
0
0
0
0
13
99
99
100
100
98
100
100
100
100
100
100
100
100
100
100
98
98
98

ISS Passover

Visibility (miles)

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

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)

14
15
14
13
8
7
7
7
7
6
5
6
4
4
5
5
5
5
5
6
8
9
10
11

Chance of Frost

Temperature (°C)

2
3
4
4
4
3
2
1
0
-0
-0
-1
-1
-1
-1
-1
-1
-1
-1
-1
-0
0
1
3

Feels Like (°C)

-3
-2
-1
-1
1
-0
-2
-3
-3
-3
-3
-4
-3
-3
-4
-4
-4
-4
-4
-4
-4
-4
-3
-1

Dew Point (°C)

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

Relative Humidity (%)

69
64
62
63
58
62
67
72
75
76
76
80
83
82
80
79
77
76
76
77
77
77
76
75

Pressure (mb)

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

Ozone (du)

356
351
346
343
343
342
341
341
342
343
343
333
336
337
339
341
343
346
348
349
350
352
353
354

Saturday 19

Waxing Gibbous 92%

13:49

06:11

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
11 Bad

Sun - Rise: 07:58, Set: 16:29, Transit: 12:14. Moon - Rise: 13:49, Set: 06:11. Civil Dark: 17:07 - 07:20. Nautical Dark: 17:48 - 06:39. Astro Dark: 18:28 - 05:59

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

0
2
2
1
5
6
32
83
19
50
59
99
99
100
100
100
100
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

98
98
100
100
100
100
100
99
98
100
100
99
90
91
95
92
84
76
65
22
57
56
40
29

High Clouds (% Sky Obscured)

97
94
88
94
97
32
52
50
87
70
3
10
10
4
2
17
87
85
87
86
82
84
88
83

ISS Passover

Visibility (miles)

10
10
10
10
10
8
6
5
5
5
3
1
1
4
9
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
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
Very Light Rain

Precipitation Probability (%)

0
0
6
7
10
15
23
30
35
45
52
57
60
60
59
60
58
49
41
35
34
31
29
27

Precipitation Amount (mm)

0
0
0.01
0.02
0.05
0.1
0.17
0.2
0.22
0.27
0.44
0.72
0.92
0.85
0.7
0.57
0.41
0.26
0.17
0.14
0.12
0.11
0.1
0.1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

4
4
5
5
5
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
5

Feels Like (°C)

-0
0
0
0
1
-0
-1
-0
-0
-0
-0
-0
-1
-1
-1
-1
-1
-0
0
-0
-0
-0
0
1

Dew Point (°C)

-0
-1
-1
-2
-2
-2
-2
-1
-0
0
1
1
1
2
2
2
2
2
2
3
3
3
3
4

Relative Humidity (%)

74
70
65
63
61
63
66
68
71
74
77
80
83
85
86
87
87
86
87
88
90
93
93
94

Pressure (mb)

1016
1015
1014
1013
1013
1013
1012
1012
1012
1012
1011
1011
1011
1010
1010
1009
1009
1008
1008
1008
1008
1008
1008
1008

Ozone (du)

356
357
357
358
358
358
358
359
360
361
361
361
361
360
360
360
361
363
364
365
365
366
366
366

Sunday 20

Waxing Gibbous 98%

14:41

07:16

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
11 Good

Sun - Rise: 07:57, Set: 16:31, Transit: 12:14. Moon - Rise: 14:41, Set: 07:16. Civil Dark: 17:08 - 07:19. Nautical Dark: 17:50 - 06:38. Astro Dark: 18:29 - 05:58

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
99
96
95
96
92
91
97
90
95
94
88
63
10

Low Clouds (% Sky Obscured)

100
100
100
99
100
100
100
100
100
100
99
93
63
58
76
88
87
96
89
95
91
87
60
9

Medium Clouds (% Sky Obscured)

72
100
98
91
98
97
98
98
100
100
100
98
94
90
95
79
66
44
23
80
90
62
52
6

High Clouds (% Sky Obscured)

80
84
59
34
87
99
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

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
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

Precipitation Probability (%)

27
25
23
19
16
14
11
9
8
0
0
7
7
6
6
6
6
6
5
4
0
0
0
0

Precipitation Amount (mm)

0.1
0.08
0.06
0.05
0.04
0.03
0.02
0.01
0.01
0
0
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.02
0.01
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

5
6
6
6
6
6
5
5
4
4
4
3
3
3
3
2
2
2
2
2
1
1
2
2

Feels Like (°C)

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

Dew Point (°C)

4
4
4
4
4
3
3
3
2
2
2
2
1
1
1
1
1
1
1
0
-0
-0
-0
0

Relative Humidity (%)

93
91
88
85
85
86
86
86
86
86
87
88
88
89
89
89
89
89
89
89
90
90
88
88

Pressure (mb)

1008
1007
1007
1007
1007
1007
1008
1008
1008
1009
1009
1010
1010
1010
1011
1011
1012
1012
1013
1014
1015
1016
1016
1017

Ozone (du)

366
366
365
365
365
364
364
363
362
361
360
359
358
357
357
356
356
356
356
355
355
354
353
352

Monday 21

Full Moon 100%

15:46

08:10

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

Sun - Rise: 07:56, Set: 16:32, Transit: 12:15. Moon - Rise: 15:46, Set: 08:10. Civil Dark: 17:10 - 07:18. Nautical Dark: 17:51 - 06:37. Astro Dark: 18:31 - 05:57

Total Clouds (% Sky Obscured)

13
21
20
17
58
58
63
63
63
63
63
63
12
12
12
12
12
12
13
13
13
13
13
13

Low Clouds (% Sky Obscured)

13
21
20
17
58
58
57
57
57
57
57
57
12
12
12
12
12
12
2
2
2
2
2
2

Medium Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
16
16
16
16
16
16
0
0
0
0
0
0
11
11
11
11
11
11

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
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)

6
6
7
7
7
7
7
7
6
6
6
6
5
5
5
5
5
5
6
5
5
5
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

1
2
2
2
1
-0
-1
-2
-2
-3
-3
-3
-3
-3
-3
-3
-3
-3
-4
-3
-3
-2
-1
-0

Dew Point (°C)

1
1
1
1
1
-0
-1
-1
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-1
-1
-0
1
2

Relative Humidity (%)

85
81
78
76
78
82
83
84
83
83
84
85
86
87
87
87
88
88
90
92
95
95
94
93

Pressure (mb)

1017
1018
1018
1018
1019
1020
1021
1022
1022
1023
1024
1024
1025
1025
1025
1025
1025
1025
1025
1026
1026
1026
1026
1025

Ozone (du)

352
350
348
347
348
349
349
347
345
343
344
345
346
346
346
346
344
343
342
341
341
341
341
342

Tuesday 22

Waning Gibbous 99%

17:02

08:53

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
11 Bad

Sun - Rise: 07:55, Set: 16:34, Transit: 12:15. Moon - Rise: 17:02, Set: 08:53. Civil Dark: 17:11 - 07:17. Nautical Dark: 17:53 - 06:36. Astro Dark: 18:32 - 05:57

Total Clouds (% Sky Obscured)

52
52
52
52
52
52
96
96
96
96
96
96
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

52
52
52
52
52
52
82
82
82
82
82
82
94
94
94
94
94
94
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
77
77
77
77
77
77
88
88
88
88
88
88
100
100
100
100
100
100

High Clouds (% Sky Obscured)

1
1
1
1
1
1
31
31
31
31
31
31
99
99
99
99
99
99
100
100
100
100
100
100

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
7
3
2
1
1
0
0
1
4
9
10
10
6
3
3
3

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
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Snow
Snow
Snow
Snow
Snow
Snow
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
9
23
46
63
68
56
39
30
26
24
28
29
30
26
24
21

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.02
0.06
0.24
0.62
0.94
0.89
0.64
0.4
0.25
0.3
0.44
0.4
0.32
0.26
0.17
0.09

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

0
2
3
3
3
1
0
-0
-1
-1
-0
0
1
-0
-2
-3
-3
-4
-4
-3
-2
-2
-1
0

Dew Point (°C)

2
2
2
2
2
1
0
-0
-1
-1
0
1
2
1
0
-0
-0
-0
-0
0
1
1
1
2

Relative Humidity (%)

93
85
80
79
79
81
82
82
79
78
77
78
78
81
83
88
90
92
91
90
92
92
88
85

Pressure (mb)

1025
1024
1023
1022
1021
1021
1020
1018
1017
1015
1014
1012
1011
1010
1009
1008
1008
1007
1006
1006
1005
1005
1004
1004

Ozone (du)

342
343
344
345
346
348
351
353
357
362
369
378
388
400
413
425
435
443
449
451
450
449
449
449

Wednesday 23

Waning Gibbous 95%

18:25

09:28

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

Sun - Rise: 07:53, Set: 16:36, Transit: 12:15. Moon - Rise: 18:25, Set: 09:28. Civil Dark: 17:13 - 07:16. Nautical Dark: 17:54 - 06:35. Astro Dark: 18:33 - 05:56

Total Clouds (% Sky Obscured)

56
56
56
56
56
56
45
45
45
45
45
45
2
2
2
2
2
2
9
9
9
9
9
9

Low Clouds (% Sky Obscured)

51
51
51
51
51
51
45
45
45
45
45
45
2
2
2
2
2
2
9
9
9
9
9
9

Medium Clouds (% Sky Obscured)

3
3
3
3
3
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

17
17
17
17
17
17
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

3
3
2
3
6
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
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
Snow
Very Light Rain

Precipitation Probability (%)

19
22
22
22
18
15
9
6
6
6
4
0
0
0
0
0
0
0
0
0
0
0
11
17

Precipitation Amount (mm)

0.07
0.08
0.09
0.08
0.07
0.04
0.03
0.02
0.02
0.03
0.02
0
0
0
0
0
0
0
0
0
0
0
0.01
0.03

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

1
1
1
1
0
-1
-1
-2
-2
-3
-3
-3
-4
-4
-4
-4
-3
-3
-3
-4
-4
-3
-2
-1

Dew Point (°C)

2
2
2
2
1
1
0
-0
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-2
-2
-2
-2
-1
0

Relative Humidity (%)

83
82
83
83
84
85
85
85
84
84
85
86
86
87
87
87
86
86
87
88
90
91
90
89

Pressure (mb)

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

Ozone (du)

449
453
457
459
460
460
458
452
444
439
438
439
441
445
451
454
454
453
450
446
442
439
438
437

Thursday 24

Waning Gibbous 88%

19:49

09:56

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

Sun - Rise: 07:52, Set: 16:37, Transit: 12:15. Moon - Rise: 19:49, Set: 09:56. Civil Dark: 17:14 - 07:15. Nautical Dark: 17:55 - 06:34. Astro Dark: 18:35 - 05:55

Total Clouds (% Sky Obscured)

63
63
63
63
63
63
13
13
13
13
13
13
83
83
83
83
83
83
97
97
97
97
97
97

Low Clouds (% Sky Obscured)

63
63
63
63
63
63
13
13
13
13
13
13
35
35
35
35
35
35
59
59
59
59
59
59

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
81
81
81
81
81
81
95
95
95
95
95
95

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
71
71
71
71
71
71

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

Precipitation Probability (%)

22
15
11
2
0
0
0
0
0
0
0
0
0
0
3
5
7
10
13
13
11
9
9
0

Precipitation Amount (mm)

0.05
0.04
0.02
0.01
0
0
0
0
0
0
0
0
0
0
0.03
0.07
0.11
0.14
0.15
0.13
0.08
0.05
0.02
0

Wind Speed/Direction (mph)

7
7
8
8
7
5
5
4
3
5
5
6
6
7
9
10
10
10
10
11
11
12
13
14

Chance of Frost

Temperature (°C)

3
4
4
4
3
2
1
0
0
-0
-0
-1
-0
-0
1
1
2
2
3
3
3
4
5
6

Feels Like (°C)

0
1
2
1
1
-1
-1
-2
-2
-3
-3
-4
-4
-4
-4
-3
-2
-2
-2
-1
-1
-1
0
2

Dew Point (°C)

1
1
1
1
-0
-1
-2
-3
-3
-4
-4
-4
-3
-3
-2
-1
-1
-0
0
1
1
2
2
3

Relative Humidity (%)

86
83
79
77
77
79
79
79
77
77
78
80
82
83
84
84
84
85
86
87
87
86
84
80

Pressure (mb)

1003
1004
1004
1004
1004
1005
1005
1006
1006
1007
1007
1007
1008
1008
1008
1009
1009
1009
1010
1010
1011
1012
1012
1013

Ozone (du)

437
436
436
436
435
434
433
432
431
430
428
427
426
428
432
433
429
423
418
415
414
413
413
413

Forecast for Reading, Reading, UK (51.45,-0.98)

Generated: 18/01/19 02:06:55. Forecast: 18/01/19 to 24/01/19. Timezone: UTC+0.00