Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Gibbous 100%

19:26

06:55

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

Sun - Rise: 06:48, Set: 19:05, Transit: 12:55. Moon - Rise: 19:26, Set: 06:55. Civil Dark: 19:38 - 06:15. Nautical Dark: 20:18 - 05:35. Astro Dark: 21:00 - 04:53

Total Clouds (% Sky Obscured)

94
57
15
6
6
86
100
17
8
10
72
2
67
98
0
97
91
95
91
94
100
100
100
100

Low Clouds (% Sky Obscured)

94
57
15
6
6
13
16
16
3
8
11
2
1
0
0
0
2
3
2
53
100
95
100
99

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

0
0
0
0
0
84
100
1
6
3
68
0
67
98
0
97
91
95
91
87
88
95
90
91

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)

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

Chance of Frost

Temperature (°C)

21
20
19
17
15
14
13
12
12
11
10
10
10
9
9
8
9
11
13
15
17
18
19
20

Feels Like (°C)

21
20
19
17
15
14
13
12
12
11
10
9
9
8
7
7
8
11
13
15
17
18
19
20

Dew Point (°C)

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

Relative Humidity (%)

57
59
63
70
75
82
88
91
92
93
94
95
95
96
99
98
93
87
80
76
71
64
60
58

Pressure (mb)

1024
1024
1025
1025
1025
1026
1027
1027
1027
1028
1028
1028
1028
1028
1028
1029
1029
1030
1030
1030
1030
1030
1029
1029

Ozone (du)

295
292
289
293
294
292
292
290
290
286
286
286
285
284
284
282
282
281
281
281
282
280
279
278

Tuesday 21

Full Moon 99%

19:39

08:08

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 OK
11 OK
12 OK
13 OK
14 Good
15 Good

Sun - Rise: 06:50, Set: 19:02, Transit: 12:55. Moon - Rise: 19:39, Set: 08:08. Civil Dark: 19:36 - 06:16. Nautical Dark: 20:16 - 05:36. Astro Dark: 20:58 - 04:55

Total Clouds (% Sky Obscured)

98
98
98
98
98
95
89
88
69
46
51
61
75
82
85
86
79
69
45
42
27
30
16
9

Low Clouds (% Sky Obscured)

13
1
1
2
4
2
0
0
0
0
0
0
0
0
0
0
1
2
3
13
27
30
16
9

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
0

High Clouds (% Sky Obscured)

98
98
98
98
98
95
89
88
69
46
51
61
75
82
85
86
79
69
44
32
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
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)

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

Chance of Frost

Temperature (°C)

20
20
19
17
16
15
14
13
13
12
12
12
12
11
10
10
11
12
14
16
18
19
20
21

Feels Like (°C)

20
20
19
17
16
15
14
13
13
12
12
12
12
11
10
9
11
12
14
16
18
19
20
21

Dew Point (°C)

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

Relative Humidity (%)

58
61
66
72
77
83
91
94
96
97
98
100
100
100
100
97
93
88
81
76
69
65
61
59

Pressure (mb)

1029
1028
1028
1029
1029
1029
1029
1029
1028
1028
1028
1027
1027
1027
1027
1028
1028
1028
1028
1028
1027
1027
1026
1026

Ozone (du)

278
277
278
277
277
277
277
276
275
274
274
274
273
274
274
275
276
276
275
274
273
273
274
274

Wednesday 22

Waning Gibbous 96%

19:53

09:21

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

Sun - Rise: 06:51, Set: 19:00, Transit: 12:55. Moon - Rise: 19:53, Set: 09:21. Civil Dark: 19:34 - 06:18. Nautical Dark: 20:14 - 05:38. Astro Dark: 20:55 - 04:57

Total Clouds (% Sky Obscured)

1
2
8
2
14
41
1
39
2
0
38
45
34
90
89
86
86
86
86
86
86
95
95
95

Low Clouds (% Sky Obscured)

1
2
8
2
6
18
1
0
0
0
0
1
4
5
10
13
13
13
13
13
13
75
75
75

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
6
6
6
6
6
6
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
9
27
0
39
2
0
38
45
31
90
88
84
84
84
84
84
84
79
79
79

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
2
2
2
2
1
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.01
0.01
0.01
0.01
0.01
0
0

Wind Speed/Direction (mph)

11
10
10
10
10
10
10
9
9
9
9
10
10
10
11
11
12
14
15
17
17
16
15
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
13
13
13
13
13
13
13
12
12
12
12
12
12
11
11
12
12
12
13
13
12
11
11

Relative Humidity (%)

60
65
70
76
81
85
92
95
97
100
100
100
100
100
97
94
93
90
85
80
71
62
59
57

Pressure (mb)

1025
1024
1024
1024
1024
1024
1023
1023
1023
1021
1021
1020
1020
1019
1020
1018
1019
1018
1018
1018
1018
1018
1016
1016

Ozone (du)

273
273
273
271
272
272
272
274
276
275
275
274
275
275
277
281
281
279
278
277
278
276
276
275

Thursday 23

Waning Gibbous 91%

20:06

10:33

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

Sun - Rise: 06:53, Set: 18:58, Transit: 12:54. Moon - Rise: 20:06, Set: 10:33. Civil Dark: 19:31 - 06:20. Nautical Dark: 20:11 - 05:40. Astro Dark: 20:52 - 04:59

Total Clouds (% Sky Obscured)

95
95
95
67
67
67
67
67
67
7
7
7
7
7
7
10
10
10
10
10
10
4
4
4

Low Clouds (% Sky Obscured)

75
75
75
59
59
59
59
59
59
7
7
7
7
7
7
4
4
4
4
4
4
4
4
4

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
7
7
7
7
7
0
0
0

High Clouds (% Sky Obscured)

79
79
79
21
21
21
21
21
21
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
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
13
12
10
10
9
9
8
7
8
8
8
7
8
7
6
7
9
10
11
12
13
14
14

Chance of Frost

Temperature (°C)

19
18
17
15
14
13
12
11
11
10
10
9
9
9
9
8
9
11
13
15
17
19
20
21

Feels Like (°C)

19
18
17
15
14
13
12
11
11
10
8
8
7
7
7
6
7
11
13
15
17
19
20
21

Dew Point (°C)

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

Relative Humidity (%)

59
63
70
72
74
76
82
88
93
96
99
99
98
97
96
96
94
87
82
79
75
71
67
66

Pressure (mb)

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

Ozone (du)

276
276
277
276
276
276
276
276
275
275
275
274
273
273
273
274
274
273
271
271
270
269
268
266

Friday 24

Waning Gibbous 84%

20:22

11:44

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

Sun - Rise: 06:55, Set: 18:55, Transit: 12:54. Moon - Rise: 20:22, Set: 11:44. Civil Dark: 19:29 - 06:21. Nautical Dark: 20:09 - 05:42. Astro Dark: 20:50 - 05:01

Total Clouds (% Sky Obscured)

4
4
4
0
0
0
0
0
0
16
16
16
16
16
16
41
41
41
41
41
41
70
70
70

Low Clouds (% Sky Obscured)

4
4
4
0
0
0
0
0
0
0
0
0
0
0
0
29
29
29
29
29
29
53
53
53

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
1
1
1

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
16
16
16
16
16
16
17
17
17
17
17
17
38
38
38

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
2
3
3
2
2
2
2
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

15
15
15
14
14
14
14
14
14
15
15
15
15
15
16
15
16
15
16
16
16
16
15
16

Relative Humidity (%)

68
72
78
81
86
91
95
98
100
100
100
100
100
100
99
97
95
91
88
85
82
76
71
71

Pressure (mb)

1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1014
1014
1014
1014
1014
1014
1014
1014
1013

Ozone (du)

265
265
266
265
264
264
263
263
262
264
265
264
263
262
261
263
264
264
265
266
267
268
270
272

Saturday 25

Waning Gibbous 76%

20:40

12:55

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

Sun - Rise: 06:56, Set: 18:53, Transit: 12:54. Moon - Rise: 20:40, Set: 12:55. Civil Dark: 19:27 - 06:23. Nautical Dark: 20:06 - 05:43. Astro Dark: 20:47 - 05:03

Total Clouds (% Sky Obscured)

70
70
70
4
4
4
4
4
4
12
12
12
12
12
12
98
98
98
98
98
98
99
99
99

Low Clouds (% Sky Obscured)

53
53
53
4
4
4
4
4
4
0
0
0
0
0
0
1
1
1
1
1
1
99
99
99

Medium Clouds (% Sky Obscured)

1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
63
63
63
63
63
63
38
38
38

High Clouds (% Sky Obscured)

38
38
38
0
0
0
0
0
0
12
12
12
12
12
12
97
97
97
97
97
97
19
19
19

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
2
2
3
3
4
3
3
2
2
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

16
16
16
15
15
15
15
15
15
15
14
14
13
13
12
12
13
14
15
16
16
15
15
15

Relative Humidity (%)

73
76
79
81
85
90
96
99
100
100
100
100
100
100
100
100
99
97
96
92
87
78
73
70

Pressure (mb)

1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013

Ozone (du)

273
273
273
273
272
272
273
274
276
277
278
279
280
281
283
283
283
281
279
279
279
279
279
278

Sunday 26

Waning Gibbous 68%

21:04

14:03

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 OK
12 OK
13 Good
14 Good
15 Good

Sun - Rise: 06:58, Set: 18:51, Transit: 12:53. Moon - Rise: 21:04, Set: 14:03. Civil Dark: 19:24 - 06:25. Nautical Dark: 20:04 - 05:45. Astro Dark: 20:45 - 05:04

Total Clouds (% Sky Obscured)

99
99
99
74
74
74
74
74
74
70
70
70
70
70
70
44
44
44
44
44
44
13
13
13

Low Clouds (% Sky Obscured)

99
99
99
30
30
30
30
30
30
2
2
2
2
2
2
16
16
16
16
16
16
12
12
12

Medium Clouds (% Sky Obscured)

38
38
38
20
20
20
20
20
20
27
27
27
27
27
27
42
42
42
42
42
42
0
0
0

High Clouds (% Sky Obscured)

19
19
19
66
66
66
66
66
66
62
62
62
62
62
62
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
3
4
10
12
11
6
4
2
0
0
0
0
0
5
6
5
3
0
0
0
0
0
0

Precipitation Amount (mm)

0
0.02
0.07
0.12
0.11
0.08
0.05
0.02
0.01
0
0
0
0
0
0.01
0.02
0.02
0.01
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
19
17
15
14
14
14
13
12
12
11
11
11
11
10
10
11
13
14
16
17
18
19
19

Feels Like (°C)

21
19
17
15
14
14
14
13
12
12
11
11
11
11
10
10
11
13
14
16
17
18
19
19

Dew Point (°C)

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

Relative Humidity (%)

71
76
83
87
90
92
96
100
100
100
100
100
100
100
100
100
98
94
88
82
74
65
61
61

Pressure (mb)

1013
1013
1013
1013
1014
1014
1015
1015
1015
1015
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014

Ozone (du)

278
278
278
278
277
276
275
276
277
278
279
280
280
280
279
278
277
276
275
275
276
276
276
275

Forecast for Bletchley, Milton Keynes, UK (51.99,-0.74)

Generated: 20/09/21 16:25:35. Forecast: 20/09/21 to 26/09/21. Timezone: UTC+1.00