Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 27

Waning Gibbous 68%

21:30

14:01

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

Sun - Rise: 06:55, Set: 18:46, Transit: 12:50. Moon - Rise: 21:30, Set: 14:01. Civil Dark: 19:19 - 06:22. Nautical Dark: 19:59 - 05:42. Astro Dark: 20:40 - 05:01

Total Clouds (% Sky Obscured)

84
95
100
100
100
98
99
100
98
96
75
45
75
100
35
27
13
1
6
2
0
0
2
1

Low Clouds (% Sky Obscured)

1
0
0
2
7
0
1
99
54
84
5
44
75
100
27
10
0
0
0
0
0
0
2
0

Medium Clouds (% Sky Obscured)

1
2
65
45
98
32
98
100
98
95
74
2
7
44
27
27
13
1
6
2
0
0
2
0

High Clouds (% Sky Obscured)

84
95
99
100
100
98
41
0
1
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
6
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
Very Light Rain
Very Light Rain
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

Precipitation Probability (%)

0
0
0
0
6
26
43
41
65
54
22
17
9
0
4
4
3
3
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0.04
0.32
0.5
0.44
1.29
1.07
0.16
0.15
0.09
0
0.01
0.01
0.01
0.01
0
0
0
0
0
0

Wind Speed/Direction (mph)

13
14
15
16
17
19
21
22
22
20
18
17
16
17
17
16
15
14
12
11
11
11
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

97
98
98
95
94
95
96
96
98
94
90
84
69
59
57
55
56
60
65
70
74
78
84
87

Pressure (mb)

1010
1009
1008
1007
1006
1005
1004
1003
1003
1004
1006
1007
1009
1011
1011
1011
1012
1013
1014
1015
1016
1016
1017
1017

Ozone (du)

276
274
275
275
276
279
280
282
282
284
289
294
296
299
302
301
302
302
302
301
302
302
299
298

Tuesday 28

Waning Gibbous 58%

22:10

15:03

01 OK
02 Bad
03 Good
04 OK
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: 06:57, Set: 18:43, Transit: 12:50. Moon - Rise: 22:10, Set: 15:03. Civil Dark: 19:17 - 06:23. Nautical Dark: 19:56 - 05:44. Astro Dark: 20:37 - 05:03

Total Clouds (% Sky Obscured)

20
61
6
23
48
52
67
88
89
66
98
95
98
95
99
98
96
100
100
100
98
100
100
100

Low Clouds (% Sky Obscured)

1
1
0
0
0
2
4
0
0
0
6
21
31
39
23
37
20
6
0
22
73
34
88
100

Medium Clouds (% Sky Obscured)

2
2
0
12
2
4
9
26
48
3
42
19
45
81
70
95
92
99
99
94
91
100
81
63

High Clouds (% Sky Obscured)

18
60
6
19
48
51
65
88
84
66
98
94
97
76
98
88
60
91
98
100
88
100
99
99

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
8
7

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
4
6
9
12
12
16
33
33
51
58
58
61
64
57

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.01
0.03
0.06
0.08
0.09
0.13
0.5
0.3
0.64
0.91
1.09
1.65
1.75
0.63

Wind Speed/Direction (mph)

11
10
10
11
11
11
10
11
11
12
13
15
17
17
16
16
15
15
15
15
15
14
14
16

Chance of Frost

Temperature (°C)

11
10
10
10
10
9
9
10
12
14
15
16
17
16
16
15
14
14
14
13
13
12
12
12

Feels Like (°C)

11
10
10
8
7
7
7
10
12
14
15
16
17
16
16
15
14
14
14
13
13
12
12
12

Dew Point (°C)

9
9
9
9
9
9
9
9
10
10
11
11
10
11
10
10
10
10
10
10
9
9
10
10

Relative Humidity (%)

90
93
94
95
96
96
94
93
87
82
76
73
66
68
70
74
76
77
78
79
80
81
85
89

Pressure (mb)

1017
1018
1018
1017
1017
1018
1018
1018
1018
1018
1017
1017
1016
1015
1015
1014
1014
1014
1012
1012
1012
1011
1011
1010

Ozone (du)

295
295
295
296
296
295
295
295
296
296
297
298
302
304
307
309
312
315
317
321
324
328
330
334

Wednesday 29

Third Quarter 49%

23:02

15:57

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

Sun - Rise: 06:59, Set: 18:41, Transit: 12:50. Moon - Rise: 23:02, Set: 15:57. Civil Dark: 19:15 - 06:25. Nautical Dark: 19:54 - 05:45. Astro Dark: 20:35 - 05:05

Total Clouds (% Sky Obscured)

100
94
56
9
17
6
10
7
8
39
34
28
28
28
28
28
28
28
6
6
6
6
6
6

Low Clouds (% Sky Obscured)

10
55
55
6
2
6
8
6
6
39
32
25
21
21
21
21
21
21
4
4
4
4
4
4

Medium Clouds (% Sky Obscured)

99
92
7
4
17
2
6
5
6
5
13
8
19
19
19
19
19
19
3
3
3
3
3
3

High Clouds (% Sky Obscured)

99
14
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1

ISS Passover

Visibility (miles)

9
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

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
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

62
18
10
17
13
12
9
7
7
6
6
7
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

1.01
0.15
0.01
0.03
0.02
0.03
0.02
0.01
0.01
0.01
0.01
0.02
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
10
6
6
5
5
4
5
6
10
11
12
13
14
14
14
14
13
12
11
7
6
6
5

Dew Point (°C)

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

Relative Humidity (%)

92
91
92
95
96
97
94
93
91
86
78
69
57
51
49
51
52
55
61
66
71
75
80
85

Pressure (mb)

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

Ozone (du)

333
337
337
332
329
327
319
318
317
317
316
314
314
314
313
311
309
308
303
302
302
301
301
301

Thursday 30

Waning Crescent 39%

00:06

16:41

01 Good
02 Good
03 Good
04 Good
05 Good
06 Good
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: 07:00, Set: 18:39, Transit: 12:49. Moon - Rise: 00:06, Set: 16:41. Civil Dark: 19:12 - 06:27. Nautical Dark: 19:52 - 05:47. Astro Dark: 20:32 - 05:07

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
7
7
7
7
7
7
100
100
100
100
100
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
54
54
54
54
54
54
66
66
66
66
66
66
38
38
38
38
38
38

High Clouds (% Sky Obscured)

0
0
0
0
0
0
100
100
100
100
100
100
88
88
88
88
88
88
98
98
98
98
98
98

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
9
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
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
None

Precipitation Probability (%)

0
0
0
0
0
0
5
5
9
16
19
16
8
8
5
8
7
11
15
12
10
8
6
5

Precipitation Amount (mm)

0
0
0
0
0
0
0.01
0.01
0.02
0.07
0.1
0.09
0.14
0.17
0.06
0.1
0.07
0.1
0.12
0.07
0.04
0.03
0.02
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
88
90
91
92
90
89
89
89
89
89
87
83
78
75
74
75
76
81
83
83
85
87
89

Pressure (mb)

1024
1025
1025
1024
1024
1022
1023
1023
1022
1021
1020
1020
1018
1017
1017
1016
1016
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

302
302
301
300
300
299
298
298
299
301
300
299
302
302
301
300
301
300
299
299
299
300
298
298

Friday 1

Waning Crescent 29%

No Rise

17:14

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 OK
23 OK
00 OK

Sun - Rise: 07:02, Set: 18:36, Transit: 12:49. Moon - Rise: No Rise, Set: 17:14. Civil Dark: 19:10 - 06:28. Nautical Dark: 19:49 - 05:49. Astro Dark: 20:30 - 05:09

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
68
68
68
68
68
68
43
43
43
43
43
43

Low Clouds (% Sky Obscured)

91
91
91
91
91
91
100
100
100
100
100
100
20
20
20
20
20
20
16
16
16
16
16
16

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
100
100
100
100
100
100
63
63
63
63
63
63
39
39
39
39
39
39

High Clouds (% Sky Obscured)

95
95
95
95
95
95
98
98
98
98
98
98
0
0
0
0
0
0
4
4
4
4
4
4

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

Precipitation Probability (%)

6
4
4
0
4
12
26
18
6
3
5
7
13
14
16
17
17
18
17
14
9
3
2
0

Precipitation Amount (mm)

0.02
0.01
0.01
0
0.01
0.06
0.12
0.07
0.02
0.01
0.03
0.08
0.16
0.17
0.16
0.15
0.14
0.18
0.19
0.11
0.04
0.02
0.01
0

Wind Speed/Direction (mph)

12
12
12
12
11
11
11
11
12
13
15
17
19
20
20
19
18
17
17
17
18
19
18
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
92
94
95
97
100
99
96
91
86
81
78
81
79
77
76
74
73
74
76
79
81
82
82

Pressure (mb)

1014
1014
1014
1013
1013
1013
1012
1011
1012
1012
1011
1010
1009
1008
1008
1007
1006
1006
1005
1005
1005
1005
1006
1006

Ozone (du)

301
301
302
301
301
301
304
306
307
308
310
311
311
311
311
312
315
318
321
324
327
330
333
337

Saturday 2

Waning Crescent 20%

01:19

17:40

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

Sun - Rise: 07:04, Set: 18:34, Transit: 12:49. Moon - Rise: 01:19, Set: 17:40. Civil Dark: 19:08 - 06:30. Nautical Dark: 19:47 - 05:51. Astro Dark: 20:27 - 05:10

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
31
31
31
31
31
31
95
95
95
95
95
95

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
18
18
18
18
18
18
3
3
3
3
3
3

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
15
15
15
15
15
15
2
2
2
2
2
2

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
13
13
13
13
13
13
95
95
95
95
95
95

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
Very 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
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
15
39
43
37
22
8
8
9
10
8
6
5
5
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.09
0.51
0.86
0.58
0.17
0.03
0.02
0.04
0.05
0.04
0.02
0.01
0.01
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
5
5
4
3
3
3
4
6
7
11
11
12
12
13
13
12
11
10
7
6
6
6
5

Dew Point (°C)

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

Relative Humidity (%)

83
87
90
95
96
96
93
91
89
84
80
77
73
68
63
60
62
67
71
74
76
77
78
79

Pressure (mb)

1006
1006
1006
1006
1006
1006
1006
1006
1006
1005
1005
1005
1004
1004
1004
1003
1003
1004
1004
1004
1004
1004
1004
1004

Ozone (du)

338
337
335
332
331
330
329
330
331
332
332
331
331
331
331
330
330
329
328
326
324
323
322
321

Sunday 3

Waning Crescent 12%

02:37

18:00

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: 07:05, Set: 18:32, Transit: 12:49. Moon - Rise: 02:37, Set: 18:00. Civil Dark: 19:05 - 06:32. Nautical Dark: 19:45 - 05:52. Astro Dark: 20:25 - 05:12

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
91
91
91
91
91
91
63
63
63
63
63
63
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
5
5
5
5
5
5
12
12
12
12
12
12
7
7
7
7
7
7

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
3
3
3
3
3
3
43
43
43
43
43
43
25
25
25
25
25
25

High Clouds (% Sky Obscured)

100
100
100
100
100
100
90
90
90
90
90
90
38
38
38
38
38
38
100
100
100
100
100
100

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
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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
5
7
10
13
12
10
9
7
5
4
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.01
0.03
0.06
0.08
0.08
0.06
0.04
0.03
0.01
0.01
0
0

Wind Speed/Direction (mph)

16
16
16
16
15
14
14
15
16
17
17
18
18
17
16
14
12
9
7
6
6
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

6
6
6
6
6
6
6
7
8
8
8
7
7
7
7
7
7
6
6
6
6
6
6
6

Relative Humidity (%)

80
83
86
89
90
91
91
90
86
81
74
67
63
62
64
66
68
69
72
74
77
79
82
85

Pressure (mb)

1003
1003
1003
1002
1002
1002
1001
1001
1001
1001
1001
1001
1001
1000
999
999
999
999
999
999
1000
1000
1000
1000

Ozone (du)

320
317
313
309
307
306
304
301
297
294
293
292
292
293
295
295
291
286
281
278
275
273
271
270

Forecast for Bourn, Cambridgeshire, UK (52.20,-0.05)

Generated: 27/09/21 01:33:36. Forecast: 27/09/21 to 03/10/21. Timezone: UTC+1.00