Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Gibbous 100%

19:25

06:55

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

Sun - Rise: 06:48, Set: 19:05, Transit: 12:55. Moon - Rise: 19:25, Set: 06:55. Civil Dark: 19:38 - 06:15. Nautical Dark: 20:17 - 05:35. Astro Dark: 20:59 - 04:54

Total Clouds (% Sky Obscured)

100
98
38
72
48
31
45
34
99
99
35
3
34
15
0
95
0
48
91
93
92
87
96
100

Low Clouds (% Sky Obscured)

100
98
38
72
48
31
45
34
13
22
26
3
2
2
0
0
0
0
0
0
1
27
73
100

Medium Clouds (% Sky Obscured)

0
0
6
1
1
1
3
2
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
99
98
13
0
34
13
0
95
0
48
91
93
92
82
88
82

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

20
21
21
20
19
17
16
15
14
13
13
12
11
11
10
9
8
7
9
12
14
16
17
18

Dew Point (°C)

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

Relative Humidity (%)

62
60
60
62
66
71
76
81
87
91
93
94
95
96
95
96
96
95
91
86
80
75
69
63

Pressure (mb)

1023
1023
1024
1024
1025
1025
1025
1026
1026
1026
1027
1028
1028
1027
1028
1028
1028
1029
1029
1030
1030
1030
1030
1030

Ozone (du)

297
298
299
297
296
292
292
293
294
294
293
289
288
288
286
284
284
283
283
284
284
283
283
281

Tuesday 21

Full Moon 99%

19:39

08:08

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 OK
11 OK
12 Bad
13 Bad

Sun - Rise: 06:50, Set: 19:02, Transit: 12:55. Moon - Rise: 19:39, Set: 08:08. Civil Dark: 19:35 - 06:16. Nautical Dark: 20:15 - 05:37. Astro Dark: 20:56 - 04:56

Total Clouds (% Sky Obscured)

100
100
100
100
99
98
98
98
98
94
95
84
86
78
78
88
88
83
87
66
45
40
56
64

Low Clouds (% Sky Obscured)

100
100
100
100
70
23
2
4
3
2
0
0
0
0
1
1
1
1
0
0
2
21
53
64

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)

86
90
96
97
98
97
98
97
98
93
95
84
86
78
78
88
88
83
87
66
45
23
6
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
2
2
1
2
3
3
4
4
3
3
4
4
4
4
4
4
4
5
6
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
58
58
61
66
72
77
83
90
94
95
97
98
99
99
100
100
98
93
89
81
76
70
65

Pressure (mb)

1030
1029
1029
1029
1028
1029
1029
1029
1029
1029
1029
1029
1028
1028
1027
1027
1027
1028
1028
1028
1028
1028
1028
1027

Ozone (du)

280
280
279
279
277
276
276
276
276
275
275
274
274
274
274
274
274
275
276
276
276
276
275
275

Wednesday 22

Waning Gibbous 96%

19:53

09:20

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

Sun - Rise: 06:51, Set: 19:00, Transit: 12:54. Moon - Rise: 19:53, Set: 09:20. Civil Dark: 19:33 - 06:18. Nautical Dark: 20:12 - 05:39. Astro Dark: 20:53 - 04:58

Total Clouds (% Sky Obscured)

56
60
81
27
29
24
19
23
68
1
3
5
0
0
1
10
66
88
88
88
88
88
88
70

Low Clouds (% Sky Obscured)

52
60
81
27
29
24
19
19
2
1
0
0
0
0
1
2
8
12
12
12
12
12
12
46

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

6
0
0
0
0
0
0
6
67
0
3
5
0
0
0
8
63
85
85
85
85
85
85
45

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)

7
8
8
7
6
7
7
7
7
7
7
7
7
7
7
7
8
9
10
11
12
13
15
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

61
59
60
64
69
76
79
83
89
94
96
100
100
100
100
100
100
95
92
88
84
81
77
71

Pressure (mb)

1027
1026
1025
1025
1025
1024
1024
1024
1024
1024
1023
1022
1022
1021
1020
1020
1020
1020
1020
1019
1019
1018
1018
1019

Ozone (du)

275
275
274
273
273
271
271
271
271
272
273
273
275
275
274
274
275
280
280
279
279
278
278
276

Thursday 23

Waning Gibbous 91%

20:07

10:31

14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Good
20 Good
21 Good
22 Good
23 Good
00 Good
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 OK

Sun - Rise: 06:53, Set: 18:58, Transit: 12:54. Moon - Rise: 20:07, Set: 10:31. Civil Dark: 19:31 - 06:20. Nautical Dark: 20:10 - 05:41. Astro Dark: 20:51 - 05:00

Total Clouds (% Sky Obscured)

70
70
70
70
70
6
6
6
6
6
6
0
0
0
0
0
0
2
2
2
2
2
2
45

Low Clouds (% Sky Obscured)

46
46
46
46
46
6
6
6
6
6
6
0
0
0
0
0
0
0
0
0
0
0
0
38

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
2
2
2
2
0

High Clouds (% Sky Obscured)

45
45
45
45
45
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
10

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

Chance of Frost

Temperature (°C)

21
20
20
19
18
17
16
14
13
12
11
11
10
10
10
9
8
8
9
11
14
16
18
20

Feels Like (°C)

21
20
20
19
18
17
16
14
13
12
11
11
10
9
9
8
7
7
8
11
14
16
18
20

Dew Point (°C)

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

Relative Humidity (%)

61
60
61
64
68
74
77
79
83
88
92
93
96
98
98
96
95
94
94
87
82
79
75
70

Pressure (mb)

1017
1017
1017
1016
1017
1017
1018
1018
1018
1018
1018
1017
1017
1017
1016
1016
1016
1017
1017
1017
1017
1016
1016
1015

Ozone (du)

276
276
275
277
277
276
277
277
277
276
276
276
274
273
272
272
272
275
275
274
273
272
271
270

Friday 24

Waning Gibbous 84%

20:23

11:42

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

Sun - Rise: 06:54, Set: 18:55, Transit: 12:54. Moon - Rise: 20:23, Set: 11:42. Civil Dark: 19:28 - 06:21. Nautical Dark: 20:08 - 05:42. Astro Dark: 20:48 - 05:02

Total Clouds (% Sky Obscured)

45
45
45
45
45
6
6
6
6
6
6
1
1
1
1
1
1
24
24
24
24
24
24
91

Low Clouds (% Sky Obscured)

38
38
38
38
38
6
6
6
6
6
6
1
1
1
1
1
1
22
22
22
22
22
22
89

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)

10
10
10
10
10
0
0
0
0
0
0
0
0
0
0
0
0
3
3
3
3
3
3
23

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
2
2
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
0.01
0.01
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
22
21
21
19
18
16
15
15
14
14
13
13
13
13
14
15
15
15
16
17
18
19
21

Feels Like (°C)

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

Dew Point (°C)

14
15
15
15
15
14
14
14
14
14
14
13
13
13
13
14
15
15
15
16
16
16
17
17

Relative Humidity (%)

66
65
67
72
77
79
85
89
94
97
98
100
100
100
100
100
100
99
97
96
92
89
85
78

Pressure (mb)

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

Ozone (du)

268
267
267
266
266
266
266
265
265
264
264
267
267
268
268
268
267
267
266
265
264
264
265
266

Saturday 25

Waning Gibbous 76%

20:42

12:52

14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Good
20 Good
21 Good
22 Good
23 Good
00 Good
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: 06:56, Set: 18:53, Transit: 12:53. Moon - Rise: 20:42, Set: 12:52. Civil Dark: 19:26 - 06:23. Nautical Dark: 20:05 - 05:44. Astro Dark: 20:46 - 05:04

Total Clouds (% Sky Obscured)

91
91
91
91
91
3
3
3
3
3
3
74
74
74
74
74
74
88
88
88
88
88
88
100

Low Clouds (% Sky Obscured)

89
89
89
89
89
0
0
0
0
0
0
2
2
2
2
2
2
2
2
2
2
2
2
100

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
7
7
7
7
7
7
71
71
71
71
71
71
95

High Clouds (% Sky Obscured)

23
23
23
23
23
2
2
2
2
2
2
72
72
72
72
72
72
69
69
69
69
69
69
35

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
0
0
0
2
3
2
0
0
0
0
0
0
0
0
16
36
40
38
21
12
11
12
9

Precipitation Amount (mm)

0
0
0
0
0.01
0.02
0.01
0
0
0
0
0
0
0
0
0.06
0.32
0.58
0.48
0.24
0.13
0.11
0.12
0.12

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

22
23
23
22
21
20
19
18
17
17
16
16
15
14
13
13
13
13
14
14
15
16
17
18

Feels Like (°C)

22
23
23
23
21
20
19
18
18
17
17
16
15
14
13
13
13
13
14
15
15
16
17
18

Dew Point (°C)

16
17
17
17
17
17
17
17
17
17
16
16
15
14
13
13
13
13
14
14
15
15
14
14

Relative Humidity (%)

72
69
68
73
79
85
88
92
97
99
99
99
100
100
100
100
100
100
100
100
99
95
87
78

Pressure (mb)

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

Ozone (du)

267
270
272
273
275
276
278
279
280
281
281
281
280
279
277
276
275
274
273
272
271
271
272
273

Sunday 26

Waning Gibbous 68%

21:06

14:00

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

Sun - Rise: 06:58, Set: 18:51, Transit: 12:53. Moon - Rise: 21:06, Set: 14:00. Civil Dark: 19:24 - 06:25. Nautical Dark: 20:03 - 05:46. Astro Dark: 20:43 - 05:05

Total Clouds (% Sky Obscured)

100
100
100
100
100
75
75
75
75
75
75
37
37
37
37
37
37
6
6
6
6
6
6
39

Low Clouds (% Sky Obscured)

100
100
100
100
100
35
35
35
35
35
35
25
25
25
25
25
25
4
4
4
4
4
4
38

Medium Clouds (% Sky Obscured)

95
95
95
95
95
21
21
21
21
21
21
20
20
20
20
20
20
5
5
5
5
5
5
10

High Clouds (% Sky Obscured)

35
35
35
35
35
63
63
63
63
63
63
12
12
12
12
12
12
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

4
2
0
0
0
0
0
0
0
0
0
0
0
6
9
10
7
5
6
7
7
2
0
0

Precipitation Amount (mm)

0.06
0.01
0
0
0
0
0
0
0
0
0
0
0
0.01
0.02
0.03
0.02
0.02
0.02
0.03
0.02
0.01
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
67
66
68
73
80
84
89
94
99
100
100
100
100
100
100
100
100
99
96
91
85
76
67

Pressure (mb)

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

Ozone (du)

274
276
278
279
279
280
280
281
282
284
287
289
290
290
290
289
288
286
284
282
281
280
281
281

Forecast for Maidenhead, Windsor and Maidenhead, UK (51.50,-0.70)

Generated: 20/09/21 14:39:21. Forecast: 20/09/21 to 26/09/21. Timezone: UTC+1.00