Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 25

Waxing Gibbous 99%

18:15

06:31

08 OK
09 OK
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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 OK
07 OK

Sun - Rise: 06:53, Set: 18:51, Transit: 12:51. Moon - Rise: 18:15, Set: 06:31. Civil Dark: 19:25 - 06:19. Nautical Dark: 20:05 - 05:39. Astro Dark: 20:48 - 04:57

Total Clouds (% Sky Obscured)

27
24
15
34
55
100
100
100
100
100
100
100
100
100
98
100
100
100
100
95
51
45
41
40

Low Clouds (% Sky Obscured)

27
24
15
34
30
51
60
61
86
84
99
100
88
38
20
25
20
39
20
22
15
8
10
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
41
58
70
65
60
62
90
100
100
99
40
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
40
100
100
100
100
100
100
100
95
96
47
68
92
97
100
92
51
45
39
40

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
9
9
9
9
9
9
9
9

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
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
1
5
8
49
73
70
41
7
2
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.6
0.4
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
15
18
19
21
22
20
19
18
17
15
13
13
10
9
9
9
10
9
9
8
8
7
6

Dew Point (°C)

10
11
11
10
11
11
11
10
10
10
10
9
9
7
6
8
8
8
7
8
7
7
7
6

Relative Humidity (%)

93
80
68
60
56
53
52
50
51
54
59
61
65
65
64
73
80
79
77
83
84
88
87
84

Pressure (mb)

1019
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020
1021
1021

Ozone (du)

287
289
289
289
290
289
287
286
284
284
285
284
284
283
281
281
286
293
295
299
302
304
304
306

Saturday 26

Full Moon 100%

18:25

07:53

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

Sun - Rise: 06:55, Set: 18:48, Transit: 12:51. Moon - Rise: 18:25, Set: 07:53. Civil Dark: 19:22 - 06:21. Nautical Dark: 20:03 - 05:40. Astro Dark: 20:45 - 04:59

Total Clouds (% Sky Obscured)

45
45
3
7
14
42
43
46
7
5
22
27
2
5
3
20
20
30
57
74
64
84
67
45

Low Clouds (% Sky Obscured)

0
0
0
7
14
33
38
44
0
5
18
0
0
3
0
0
0
0
4
16
2
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
38
38
36
7
0
11
0
0
0
0
0
0
0
49
73
64
84
67
45

High Clouds (% Sky Obscured)

45
45
3
0
0
0
0
0
0
0
9
27
2
3
3
20
20
30
57
31
0
15
45
9

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

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
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
9
12
16
17
18
19
19
19
19
18
15
12
13
12
11
9
8
8
8
8
8
8
8

Dew Point (°C)

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

Relative Humidity (%)

78
70
62
53
47
43
39
38
38
39
46
51
53
54
55
56
55
58
67
73
78
81
80
80

Pressure (mb)

1021
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1021
1021
1021
1020
1020
1019
1019
1018

Ozone (du)

306
308
310
312
311
312
311
310
309
307
306
305
303
302
302
302
302
301
300
300
299
298
298
300

Sunday 27

Waning Gibbous 98%

18:37

07:53

08 OK
09 Bad
10 OK
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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 06:57, Set: 18:46, Transit: 12:50. Moon - Rise: 18:37, Set: 07:53. Civil Dark: 19:20 - 06:22. Nautical Dark: 20:00 - 05:42. Astro Dark: 20:42 - 05:01

Total Clouds (% Sky Obscured)

47
67
22
43
62
78
86
94
98
93
97
96
98
93
99
100
100
100
99
99
99
100
100
100

Low Clouds (% Sky Obscured)

7
4
3
26
32
52
78
67
58
53
57
52
69
90
90
82
78
78
69
47
49
32
32
32

Medium Clouds (% Sky Obscured)

47
67
22
8
7
23
14
33
54
87
69
87
82
93
98
100
98
97
95
93
46
89
99
100

High Clouds (% Sky Obscured)

23
0
0
5
37
15
20
13
37
5
33
50
66
47
65
69
100
96
92
89
73
59
53
63

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
9
9
9
9
9
9
9

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
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
1
1
5
21
17
10
17
52
58
44
21
4
1
1
1
4

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
69
65
60
56
54
52
52
54
57
60
62
65
70
73
72
74
82
86
86
90
87
90
89

Pressure (mb)

1018
1018
1017
1017
1016
1015
1014
1013
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1014
1015
1015

Ozone (du)

301
301
299
298
296
298
297
297
296
295
294
294
294
295
294
293
293
294
293
293
293
292
291
292

Monday 28

Waning Gibbous 93%

18:51

09:19

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 06:58, Set: 18:43, Transit: 12:50. Moon - Rise: 18:51, Set: 09:19. Civil Dark: 19:18 - 06:24. Nautical Dark: 19:58 - 05:44. Astro Dark: 20:40 - 05:02

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
97
96
95
94
93
90

Low Clouds (% Sky Obscured)

30
29
35
33
39
52
53
58
60
63
67
44
55
51
51
53
52
47
42
47
87
83
81
76

Medium Clouds (% Sky Obscured)

91
99
94
91
83
77
73
70
65
65
65
42
0
0
15
34
57
89
92
91
87
86
83
82

High Clouds (% Sky Obscured)

81
100
100
100
100
100
80
100
100
99
99
99
100
100
100
100
100
82
67
55
52
50
51
46

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
6
9
9
9
9
9
9
9
9
9
9
9
9
9
2
2
2

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

Precipitation Probability (%)

4
4
4
6
34
67
77
50
12
22
3
4
4
8
3
4
5
17
30
65
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0.2
0.6
0.2
0
0
0
0
0
0
0
0
0
0
0
0
1.7
2.9
1.4
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
14
15
16
17
18
17
17
17
17
16
15
15
15
15
15
15
15
15
16
16
16
16
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
82
75
71
68
67
73
85
88
87
87
89
93
96
96
96
95
95
95
95
93
98
98
96

Pressure (mb)

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

Ozone (du)

292
292
294
296
296
297
298
299
300
299
300
304
305
306
306
305
305
305
305
305
304
301
303
304

Tuesday 29

Waning Gibbous 86%

19:09

10:49

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 07:00, Set: 18:41, Transit: 12:50. Moon - Rise: 19:09, Set: 10:49. Civil Dark: 19:15 - 06:26. Nautical Dark: 19:55 - 05:46. Astro Dark: 20:37 - 05:04

Total Clouds (% Sky Obscured)

85
82
86
92
96
97
99
100
100
100
100
83
66
49
61
70
80
85
91
97
96
96
96
98

Low Clouds (% Sky Obscured)

68
62
64
60
55
55
31
45
55
55
34
15
8
0
6
11
15
8
4
0
0
0
0
8

Medium Clouds (% Sky Obscured)

81
82
78
75
23
69
4
0
0
0
0
1
1
2
5
6
8
11
14
17
15
17
18
44

High Clouds (% Sky Obscured)

41
45
61
82
96
95
99
100
100
100
100
81
62
43
52
63
75
82
89
97
96
96
96
98

ISS Passover

Visibility (miles)

6
5
2
2
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

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
Moderate Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

87
95
95
95
49
10
1
4
4
12
0
1
0
0
0
0
0
0
1
0
0
0
0
15

Precipitation Amount (mm)

0.4
0.6
3.2
0.7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
18
18
19
20
21
21
23
23
22
21
20
20
19
18
18
18
18
18
18
18
18
18
18

Feels Like (°C)

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

Dew Point (°C)

17
17
18
18
19
20
19
18
19
18
18
17
17
17
17
17
17
17
17
16
16
16
16
16

Relative Humidity (%)

96
95
95
95
93
92
89
75
76
75
80
80
84
88
92
92
93
95
93
92
90
89
89
86

Pressure (mb)

1015
1015
1015
1015
1014
1014
1013
1013
1012
1012
1013
1013
1013
1013
1013
1013
1012
1012
1012
1011
1011
1011
1010
1010

Ozone (du)

305
304
302
299
299
297
297
298
296
296
297
296
295
294
293
292
291
290
289
288
287
286
285
285

Wednesday 30

Waning Gibbous 77%

19:37

12:20

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 07:02, Set: 18:39, Transit: 12:49. Moon - Rise: 19:37, Set: 12:20. Civil Dark: 19:13 - 06:28. Nautical Dark: 19:53 - 05:48. Astro Dark: 20:34 - 05:06

Total Clouds (% Sky Obscured)

99
100
100
100
100
100
100
100
92
82
73
67
63
58
64
72
78
68
59
49
54
59
64
72

Low Clouds (% Sky Obscured)

16
25
41
55
65
70
63
67
55
53
50
37
26
14
13
12
12
21
32
44
36
30
21
28

Medium Clouds (% Sky Obscured)

70
97
98
99
100
92
84
78
67
57
44
40
33
31
34
37
40
24
11
1
2
3
4
23

High Clouds (% Sky Obscured)

99
100
89
78
67
76
84
88
59
30
1
3
6
10
33
52
63
47
36
24
26
29
28
44

ISS Passover

Visibility (miles)

9
9
9
9
8
7
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

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

Precipitation Probability (%)

23
30
41
45
45
54
67
77
66
45
27
23
30
27
19
12
4
10
9
4
1
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0.3
0.4
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
16
17
16
16
16
19
18
18
17
18
18
16
16
16
16
16
16
13
13
13
13
12
12

Dew Point (°C)

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

Relative Humidity (%)

88
88
88
86
85
84
80
77
73
74
76
78
79
79
81
83
84
89
89
89
92
92
93
93

Pressure (mb)

1010
1010
1011
1010
1010
1010
1010
1010
1011
1011
1012
1012
1012
1013
1013
1014
1014
1014
1015
1015
1015
1016
1016
1016

Ozone (du)

284
284
284
284
284
285
285
285
286
286
286
287
287
288
288
289
291
292
297
302
307
308
309
310

Thursday 1

Waning Gibbous 66%

20:18

13:45

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: 07:04, Set: 18:36, Transit: 12:49. Moon - Rise: 20:18, Set: 13:45. Civil Dark: 19:10 - 06:29. Nautical Dark: 19:51 - 05:49. Astro Dark: 20:32 - 05:08

Total Clouds (% Sky Obscured)

81
89
84
79
75
83
91
100
86
71
61
64
67
61
62
63
59

Low Clouds (% Sky Obscured)

30
30
31
37
37
36
37
40
42
42
38
37
31
29
17
14
9

Medium Clouds (% Sky Obscured)

43
62
56
51
45
63
81
99
75
56
39
47
56
60
59
59
58

High Clouds (% Sky Obscured)

61
76
58
40
23
52
76
100
80
64
51
60
60
60
61
62
59

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

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

Precipitation Probability (%)

0
0
0
0
0
12
14
7
35
41
38
29
18
4
9
7
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
10
11
11
11
11
10
9
9
7
6
5
5
5
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
82
78
69
64
58
56
53
52
55
60
64
67
69
73
75
78

Pressure (mb)

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

Ozone (du)

311
313
314
315
315
316
317
318
319
320
321
322
320
318
317
316
316

Forecast for Boston, Lincolnshire, United Kingdom (52.98,-0.02)

Generated: 25/09/26 08:05:28. Forecast: 25/09/26 to 01/10/26. Timezone: UTC+1.00