Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waning Gibbous 95%

23:00

07:10

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

Sun - Rise: 05:10, Set: 21:10, Transit: 13:10. Moon - Rise: 23:00, Set: 07:10. Civil Dark: 21:54 - 04:25. Nautical Dark: 22:56 - 03:22. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

39
31
22
31
34
73
84
80
70
100
95
98
98
96
84
20
11
1
0
3
27
46
75
62

Low Clouds (% Sky Obscured)

18
19
16
27
24
10
6
2
1
2
0
0
0
0
0
1
2
1
0
3
27
46
75
61

Medium Clouds (% Sky Obscured)

36
24
14
11
8
5
2
0
0
0
0
0
20
39
13
1
0
0
0
0
0
0
16
35

High Clouds (% Sky Obscured)

0
0
0
0
9
70
84
80
70
100
95
98
98
96
84
19
9
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

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

Precipitation Probability (%)

5
27
26
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.04
0.93
0.23
0.01
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
15
15
14
14
13
12
8
7
6
5
6
5
5
4
5
6
6
8
11
13
15
15
16

Dew Point (°C)

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

Relative Humidity (%)

63
61
61
60
59
60
64
69
75
79
84
87
89
90
90
91
92
90
84
75
68
62
59
56

Pressure (mb)

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

Ozone (du)

365
364
363
362
360
359
359
359
359
358
358
358
358
357
358
359
362
362
358
353
348
345
341
339

Tuesday 21

Waning Gibbous 89%

00:00

07:59

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

Sun - Rise: 05:08, Set: 21:11, Transit: 13:10. Moon - Rise: 00:00, Set: 07:59. Civil Dark: 21:55 - 04:24. Nautical Dark: 22:59 - 03:20. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

65
48
10
2
2
10
16
6
7
12
24
63
79
69
59
59
35
27
31
34
30
61
71
45

Low Clouds (% Sky Obscured)

59
47
8
2
2
3
4
0
1
4
16
58
74
60
52
56
31
21
23
29
27
48
59
20

Medium Clouds (% Sky Obscured)

27
18
7
0
0
4
6
4
7
11
19
48
70
64
50
38
23
23
27
27
16
27
36
31

High Clouds (% Sky Obscured)

0
0
0
0
0
6
11
2
0
0
0
0
0
0
0
0
0
0
0
0
2
9
23
16

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

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
17
16
16
15
14
12
10
9
8
7
7
6
6
6
6
7
8
9
12
14
15
16
17

Feels Like (°C)

17
17
16
16
15
14
12
10
8
8
7
7
6
6
6
6
7
8
9
12
14
15
16
17

Dew Point (°C)

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

Relative Humidity (%)

53
52
52
52
51
51
54
59
63
68
72
76
78
79
80
80
80
77
72
64
58
54
52
49

Pressure (mb)

1019
1019
1019
1019
1019
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020

Ozone (du)

337
336
335
334
334
333
333
332
332
331
331
331
331
331
331
331
332
332
333
334
334
336
337
337

Wednesday 22

Waning Gibbous 81%

00:50

08:55

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

Sun - Rise: 05:07, Set: 21:13, Transit: 13:11. Moon - Rise: 00:50, Set: 08:55. Civil Dark: 21:57 - 04:22. Nautical Dark: 23:01 - 03:17. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

48
65
53
41
16
13
16
21
42
48
83
56
50
98
92
96
98
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

16
55
31
9
8
9
12
6
28
24
20
27
25
43
52
35
17
16
16
16
16
16
16
88

Medium Clouds (% Sky Obscured)

43
44
27
20
9
6
4
19
24
38
81
50
47
93
91
87
93
98
98
98
98
98
98
100

High Clouds (% Sky Obscured)

6
1
22
26
2
0
5
0
0
0
0
1
1
79
12
73
90
96
96
96
96
96
96
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
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
3
3
2
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

8
8
9
7
8
7
6
4
3
3
3
3
2
4
4
4
3
4
5
6
7
9
10
11

Chance of Frost

Temperature (°C)

17
18
17
17
16
16
14
11
10
9
8
8
8
7
7
7
8
9
10
12
14
16
16
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

48
49
50
52
54
56
61
68
74
78
82
84
83
81
80
80
81
79
71
61
54
50
49
48

Pressure (mb)

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

Ozone (du)

336
333
332
332
333
334
333
331
330
329
329
331
334
339
343
344
344
343
341
338
336
336
337
339

Thursday 23

Waning Gibbous 73%

01:30

09:56

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: 05:06, Set: 21:14, Transit: 13:11. Moon - Rise: 01:30, Set: 09:56. Civil Dark: 21:59 - 04:21. Nautical Dark: 23:04 - 03:15. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

88
88
88
88
88
43
43
43
43
43
43
100
100
100
100
100
100
98
98
98
98
98
98
75

Medium Clouds (% Sky Obscured)

100
100
100
100
100
98
98
98
98
98
98
50
50
50
50
50
50
6
6
6
6
6
6
100

High Clouds (% Sky Obscured)

98
98
98
98
98
95
95
95
95
95
95
1
1
1
1
1
1
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
9
5
2
4
7
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
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
Very Light Rain
None

Precipitation Probability (%)

0
0
0
1
5
7
4
2
2
2
3
7
8
9
13
17
19
20
25
31
28
20
8
1

Precipitation Amount (mm)

0
0
0
0.01
0.05
0.09
0.08
0.04
0.02
0.02
0.04
0.05
0.04
0.04
0.06
0.06
0.05
0.05
0.09
0.25
0.36
0.22
0.05
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
18
18
17
15
15
13
12
12
11
10
10
10
10
10
10
10
11
11
11
11
12
12
12

Feels Like (°C)

18
18
18
17
15
15
13
12
12
11
10
10
10
10
10
10
10
11
11
11
11
12
12
12

Dew Point (°C)

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

Relative Humidity (%)

46
46
48
53
60
65
73
80
86
89
91
93
93
95
97
97
97
95
93
92
90
88
86
84

Pressure (mb)

1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1013
1013
1012
1012
1012
1012
1013
1013
1013
1013
1013

Ozone (du)

341
342
343
344
346
347
349
352
354
356
357
358
358
357
357
358
360
362
366
371
373
368
360
353

Friday 24

Waning Gibbous 64%

02:02

11:00

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: 05:05, Set: 21:15, Transit: 13:11. Moon - Rise: 02:02, Set: 11:00. Civil Dark: 22:00 - 04:19. Nautical Dark: 23:06 - 03:13. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
66
66
66
66
66
66
96
96
96
96
96
96
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

75
75
75
75
75
66
66
66
66
66
66
96
96
96
96
96
96
99
99
99
99
99
99
89

Medium Clouds (% Sky Obscured)

100
100
100
100
100
2
2
2
2
2
2
0
0
0
0
0
0
73
73
73
73
73
73
99

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
5
5
5
5
5
5
59
59
59
59
59
59
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
6
3
4
8
10
10
8
7
9
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
2
2
2
2
1
1
0
0
0
0
3
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0.01
0.03
0.03
0.02
0.01
0.01
0
0
0
0
0.01
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

12
12
12
12
12
12
9
8
7
5
4
7
6
6
6
7
8
9
9
9
9
10
11
12

Chance of Frost

Temperature (°C)

13
13
14
15
15
15
14
12
11
10
9
9
8
8
8
8
8
9
11
12
14
15
16
16

Feels Like (°C)

13
13
14
15
15
15
14
12
11
9
8
7
7
6
6
6
6
7
11
12
14
15
16
16

Dew Point (°C)

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

Relative Humidity (%)

81
79
74
71
67
67
72
80
87
91
92
93
93
93
93
95
95
94
87
79
73
69
68
67

Pressure (mb)

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

Ozone (du)

351
351
350
349
347
344
340
336
333
329
326
323
321
318
316
314
312
310
308
305
303
301
299
298

Saturday 25

Waning Gibbous 54%

02:28

12:06

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: 05:04, Set: 21:17, Transit: 13:11. Moon - Rise: 02:28, Set: 12:06. Civil Dark: 22:02 - 04:18. Nautical Dark: 23:08 - 03:11. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
86
86
86
86
86
86
98

Low Clouds (% Sky Obscured)

89
89
89
89
89
99
99
99
99
99
99
100
100
100
100
100
100
85
85
85
85
85
85
98

Medium Clouds (% Sky Obscured)

99
99
99
99
99
92
92
92
92
92
92
48
48
48
48
48
48
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
81
81
81
81
81
81
69
69
69
69
69
69
4
4
4
4
4
4
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
7
5
3
1
0
0
1
1
1
2
5
9
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
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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
4
8
15
24
28
29
25
18
13
9
7
5
4

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.01
0.05
0.18
0.3
0.31
0.25
0.2
0.16
0.13
0.1
0.07
0.04
0.03

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
16
16
16
15
15
14
12
11
11
11
11
11
12
12
12
12
13
14
14
15
16
16
17

Feels Like (°C)

17
16
16
16
15
15
14
12
11
11
11
11
11
12
12
12
12
13
14
14
15
16
16
17

Dew Point (°C)

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

Relative Humidity (%)

66
67
68
69
70
72
75
82
87
89
90
92
94
95
96
96
95
94
90
86
82
80
79
75

Pressure (mb)

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

Ozone (du)

296
295
294
294
294
295
294
293
292
291
291
291
291
292
294
295
297
298
300
301
302
303
303
303

Sunday 26

Third Quarter 45%

02:50

13:13

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: 05:02, Set: 21:18, Transit: 13:11. Moon - Rise: 02:50, Set: 13:13. Civil Dark: 22:04 - 04:17. Nautical Dark: 23:11 - 03:09. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

98
98
98
98
98
96
96
96
96
96
96
76
76
76
76
76
76
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

98
98
98
98
98
60
60
60
60
60
60
13
13
13
13
13
13
99
99
99
99
99
99
100

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
74
74
74
74
74
74
92
92
92
92
92
92
100

High Clouds (% Sky Obscured)

0
0
0
0
0
91
91
91
91
91
91
10
10
10
10
10
10
9
9
9
9
9
9
98

ISS Passover

Visibility (miles)

10
10
10
10
10
8
6
3
1
4
8
10
8
4
1
1
1
2
3
4
6
8
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
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
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

4
6
9
12
12
12
13
18
17
17
16
11
11
12
13
15
16
16
13
10
6
6
7
12

Precipitation Amount (mm)

0.03
0.05
0.08
0.11
0.13
0.15
0.17
0.18
0.18
0.21
0.23
0.25
0.25
0.24
0.25
0.3
0.41
0.45
0.27
0.1
0.05
0.06
0.08
0.1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
11
12
11
11
11
11
11
10
10

Relative Humidity (%)

72
71
72
77
83
87
90
92
94
95
96
97
98
99
100
100
100
98
95
91
87
85
83
80

Pressure (mb)

1016
1016
1016
1015
1015
1015
1015
1014
1014
1014
1014
1013
1013
1013
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012

Ozone (du)

303
302
303
305
307
311
315
320
323
322
318
316
317
319
321
320
319
319
320
321
322
321
320
320

Forecast for Rhayader, Powys LD6 5HP, UK (52.27,-3.57)

Generated: 20/05/19 14:38:17. Forecast: 20/05/19 to 26/05/19. Timezone: UTC+1.00