Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 18

Waxing Gibbous 92%

13:49

04:59

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

Sun - Rise: 07:59, Set: 16:29, Transit: 12:14. Moon - Rise: 13:49, Set: 04:59. Civil Dark: 17:07 - 07:21. Nautical Dark: 17:48 - 06:40. Astro Dark: 18:28 - 06:00

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

42
85
96
100
100
100
100
100
98
98
100
98
98
100
100
100
100
100
99
98
100
100
99
90

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
98
98
98
97
94
88
94
97
32
52
50
87
70
3
10
10

ISS Passover

Visibility (miles)

8
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
8
6
5
5
5
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
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
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
6
7
10
15
23
30
35
45
52
57
60

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.01
0.02
0.05
0.1
0.17
0.2
0.22
0.27
0.44
0.72
0.92

Wind Speed/Direction (mph)

4
3
4
4
5
5
6
8
9
10
11
11
12
14
15
15
14
14
14
14
14
15
15
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
80
78
76
76
76
77
77
77
76
75
74
71
66
60
61
63
66
68
71
74
77
80
83

Pressure (mb)

1020
1019
1019
1019
1018
1018
1017
1017
1017
1017
1016
1016
1015
1014
1013
1013
1013
1012
1012
1012
1012
1011
1011
1011

Ozone (du)

337
339
341
343
346
348
349
350
352
353
354
356
357
357
358
358
358
358
359
360
361
361
361
361

Saturday 19

Waxing Gibbous 98%

14:41

06:11

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

Sun - Rise: 07:58, Set: 16:31, Transit: 12:14. Moon - Rise: 14:41, Set: 06:11. Civil Dark: 17:08 - 07:20. Nautical Dark: 17:50 - 06:39. Astro Dark: 18:29 - 05:59

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
99
96

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
100
100
100
100
100
100
99
93
63

Medium Clouds (% Sky Obscured)

91
95
92
84
76
65
22
57
56
40
29
72
100
98
91
98
97
98
98
100
100
100
98
94

High Clouds (% Sky Obscured)

4
2
17
87
85
87
86
82
84
88
83
80
84
59
34
87
99
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

4
9
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

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
Very Light Rain
None
None
Very Light Rain
Very Light Rain

Precipitation Probability (%)

60
59
60
58
49
41
35
34
31
29
27
27
25
23
19
16
14
11
9
8
0
0
7
7

Precipitation Amount (mm)

0.85
0.7
0.57
0.41
0.26
0.17
0.14
0.12
0.11
0.1
0.1
0.1
0.08
0.06
0.05
0.04
0.03
0.02
0.01
0.01
0
0
0.01
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
86
87
87
86
87
88
90
93
93
94
93
91
88
85
85
86
86
86
86
86
87
88
88

Pressure (mb)

1010
1010
1009
1009
1008
1008
1008
1008
1008
1008
1008
1008
1007
1007
1007
1007
1007
1008
1008
1008
1009
1009
1010
1010

Ozone (du)

360
360
360
361
363
364
365
365
366
366
366
366
366
365
365
365
364
364
363
362
361
360
359
358

Sunday 20

Waxing Gibbous 100%

15:46

07:16

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

Sun - Rise: 07:57, Set: 16:32, Transit: 12:15. Moon - Rise: 15:46, Set: 07:16. Civil Dark: 17:10 - 07:19. Nautical Dark: 17:51 - 06:38. Astro Dark: 18:31 - 05:58

Total Clouds (% Sky Obscured)

95
96
92
91
97
90
95
94
88
63
10
13
21
20
17
58
58
63
63
63
63
63
63
12

Low Clouds (% Sky Obscured)

58
76
88
87
96
89
95
91
87
60
9
13
21
20
17
58
58
57
57
57
57
57
57
12

Medium Clouds (% Sky Obscured)

90
95
79
66
44
23
80
90
62
52
6
1
0
0
0
0
0
0
0
0
0
0
0
1

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
16
16
16
16
16
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

6
6
6
6
6
5
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.01
0.01
0.01
0.01
0.01
0.02
0.01
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
89
89
89
89
89
89
90
90
88
88
85
81
78
76
78
82
83
84
83
83
84
85
86

Pressure (mb)

1010
1011
1011
1012
1012
1013
1014
1015
1016
1016
1017
1017
1018
1018
1018
1019
1020
1021
1022
1022
1023
1024
1024
1025

Ozone (du)

357
357
356
356
356
356
355
355
354
353
352
352
350
348
347
348
349
349
347
345
343
344
345
346

Monday 21

Full Moon 99%

17:02

08:10

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

Sun - Rise: 07:56, Set: 16:34, Transit: 12:15. Moon - Rise: 17:02, Set: 08:10. Civil Dark: 17:11 - 07:18. Nautical Dark: 17:53 - 06:37. Astro Dark: 18:32 - 05:57

Total Clouds (% Sky Obscured)

12
12
12
12
12
13
13
13
13
13
13
52
52
52
52
52
52
96
96
96
96
96
96
100

Low Clouds (% Sky Obscured)

12
12
12
12
12
2
2
2
2
2
2
52
52
52
52
52
52
82
82
82
82
82
82
94

Medium Clouds (% Sky Obscured)

1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
77
77
77
77
77
77
88

High Clouds (% Sky Obscured)

0
0
0
0
0
11
11
11
11
11
11
1
1
1
1
1
1
31
31
31
31
31
31
99

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
7
3
2
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
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
23
46
63
68

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.02
0.06
0.24
0.62
0.94

Wind Speed/Direction (mph)

5
5
5
5
5
6
5
5
5
5
6
6
7
6
6
6
6
6
7
8
9
11
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
87
88
88
90
92
95
95
93
91
89
85
80
79
79
81
82
82
79
78
77
78
78

Pressure (mb)

1025
1025
1025
1025
1025
1025
1026
1026
1026
1026
1025
1025
1024
1023
1022
1021
1021
1020
1018
1017
1015
1014
1012
1011

Ozone (du)

346
346
346
344
343
342
341
341
341
341
342
342
343
344
345
346
348
351
353
357
362
369
378
388

Tuesday 22

Waning Gibbous 99%

18:25

08:53

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

Sun - Rise: 07:55, Set: 16:36, Transit: 12:15. Moon - Rise: 18:25, Set: 08:53. Civil Dark: 17:13 - 07:17. Nautical Dark: 17:54 - 06:36. Astro Dark: 18:33 - 05:57

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
56
56
56
56
56
56
45
45
45
45
45
45
2

Low Clouds (% Sky Obscured)

94
94
94
94
94
100
100
100
100
100
100
51
51
51
51
51
51
45
45
45
45
45
45
2

Medium Clouds (% Sky Obscured)

88
88
88
88
88
100
100
100
100
100
100
3
3
3
3
3
3
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

99
99
99
99
99
100
100
100
100
100
100
17
17
17
17
17
17
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
1
4
9
10
10
6
3
3
3
3
3
2
3
6
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
Snow
Snow
Snow
Snow
Snow
Snow
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
Snow
Snow
Snow
Snow
None
None
None

Precipitation Probability (%)

56
39
30
26
24
28
29
30
26
24
21
19
22
22
22
18
15
9
6
6
6
4
0
0

Precipitation Amount (mm)

0.89
0.64
0.4
0.25
0.3
0.44
0.4
0.32
0.26
0.17
0.09
0.07
0.08
0.09
0.08
0.07
0.04
0.03
0.02
0.02
0.03
0.02
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
83
88
90
92
91
90
92
92
88
85
83
82
83
83
84
85
85
85
84
84
85
86
86

Pressure (mb)

1010
1009
1008
1008
1007
1006
1006
1005
1005
1004
1004
1004
1003
1003
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002

Ozone (du)

400
413
425
435
443
449
451
450
449
449
449
449
453
457
459
460
460
458
452
444
439
438
439
441

Wednesday 23

Waning Gibbous 95%

19:49

09:28

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

Sun - Rise: 07:53, Set: 16:37, Transit: 12:15. Moon - Rise: 19:49, Set: 09:28. Civil Dark: 17:14 - 07:16. Nautical Dark: 17:55 - 06:35. Astro Dark: 18:35 - 05:56

Total Clouds (% Sky Obscured)

2
2
2
2
2
9
9
9
9
9
9
63
63
63
63
63
63
13
13
13
13
13
13
83

Low Clouds (% Sky Obscured)

2
2
2
2
2
9
9
9
9
9
9
63
63
63
63
63
63
13
13
13
13
13
13
35

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
81

High Clouds (% Sky Obscured)

0
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
Snow
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
11
17
22
15
11
2
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
87
86
86
87
88
90
91
90
89
86
83
79
77
77
79
79
79
77
77
78
80
82

Pressure (mb)

1002
1002
1001
1001
1001
1001
1001
1002
1002
1003
1003
1003
1004
1004
1004
1004
1005
1005
1006
1006
1007
1007
1007
1008

Ozone (du)

445
451
454
454
453
450
446
442
439
438
437
437
436
436
436
435
434
433
432
431
430
428
427
426

Thursday 24

Waning Gibbous 88%

21:12

09:56

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

Sun - Rise: 07:52, Set: 16:39, Transit: 12:16. Moon - Rise: 21:12, Set: 09:56. Civil Dark: 17:16 - 07:15. Nautical Dark: 17:57 - 06:34. Astro Dark: 18:36 - 05:55

Total Clouds (% Sky Obscured)

83
83
83
83
83
97
97
97
97
97
97
70
70
70
70
70
70
98
98
98
98
98
98
99

Low Clouds (% Sky Obscured)

35
35
35
35
35
59
59
59
59
59
59
63
63
63
63
63
63
74
74
74
74
74
74
91

Medium Clouds (% Sky Obscured)

81
81
81
81
81
95
95
95
95
95
95
0
0
0
0
0
0
96
96
96
96
96
96
98

High Clouds (% Sky Obscured)

0
0
0
0
0
71
71
71
71
71
71
20
20
20
20
20
20
15
15
15
15
15
15
98

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

Precipitation Probability (%)

0
3
5
7
10
13
13
11
9
9
0
0
0
6
6
5
4
3
3
3
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-0
1
1
2
2
3
3
3
4
5
6
7
7
8
7
7
6
6
6
6
6
6
5
5

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
84
84
84
85
86
87
87
86
84
80
78
76
75
76
78
80
81
82
82
82
82
82
83

Pressure (mb)

1008
1008
1009
1009
1009
1010
1010
1011
1012
1012
1013
1013
1013
1014
1014
1014
1015
1016
1016
1017
1017
1018
1018
1018

Ozone (du)

428
432
433
429
423
418
415
414
413
413
413
413
411
408
407
408
411
414
418
421
423
425
426
426

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

Generated: 18/01/19 00:53:55. Forecast: 18/01/19 to 24/01/19. Timezone: UTC+0.00