Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 27

Waxing Gibbous 89%

17:24

03:04

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

Sun - Rise: 04:52, Set: 21:07, Transit: 13:00. Moon - Rise: 17:24, Set: 03:04. Civil Dark: 21:53 - 04:07. Nautical Dark: 23:00 - 02:58. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

10
18
7
33
55
65
88
60
63
66
52
40
31
24
3
3
3
1
2
2
1
29
40
92

Low Clouds (% Sky Obscured)

10
0
7
33
0
14
3
0
32
25
7
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

10
7
7
32
31
31
23
26
22
14
13
19
17
17
3
2
3
1
2
2
1
6
18
39

High Clouds (% Sky Obscured)

2
3
3
2
0
0
56
22
2
3
2
1
0
0
1
2
3
0
0
0
1
5
1
48

ISS Passover

Visibility (miles)

9
7
1
9
9
6
9
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8

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
Very Light Rain
Light Rain

Precipitation Probability (%)

0
3
0
22
34
24
17
24
7
1
0
0
0
0
0
2
4
10
5
1
1
8
56
91

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
0.3
0.8

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
16
15
15
15
16
18
19
21
22
23
24
24
25
25
24
22
20
18
16
15
14
13
12

Feels Like (°C)

16
14
14
13
14
15
17
19
20
21
23
23
24
24
23
23
21
19
16
14
13
12
11
11

Dew Point (°C)

16
15
15
14
14
15
15
15
15
16
16
16
17
17
17
18
16
15
13
12
11
9
8
9

Relative Humidity (%)

98
98
98
96
95
90
85
77
70
66
63
62
61
61
64
69
70
74
74
75
75
74
75
84

Pressure (mb)

1025
1025
1025
1026
1026
1027
1027
1027
1027
1027
1026
1026
1025
1024
1024
1024
1024
1024
1024
1025
1025
1024
1024
1024

Ozone (du)

326
326
326
326
326
327
328
329
329
329
331
331
330
329
329
330
330
329
328
330
331
332
333
332

Thursday 28

Waxing Gibbous 95%

18:38

03:04

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
01 Bad
02 Bad

Sun - Rise: 04:51, Set: 21:09, Transit: 13:00. Moon - Rise: 18:38, Set: 03:04. Civil Dark: 21:54 - 04:06. Nautical Dark: 23:02 - 02:56. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

26
100
45
63
59
96
100
100
83
93
99
100
100
100
59
96
98
96
96
99
91
93
60
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
21
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

26
57
21
29
26
26
19
14
0
0
0
65
53
54
40
35
54
71
57
50
49
23
15
20

High Clouds (% Sky Obscured)

26
100
45
63
50
71
100
97
83
60
86
100
100
99
58
60
94
61
67
96
58
85
60
100

ISS Passover

Visibility (miles)

5
6
3
9
9
7
7
9
9
9
9
9
9
9
9
9
9
9
9
5
8
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
Light Rain
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

95
95
80
40
51
29
16
2
1
0
0
0
0
0
0
0
0
1
32
30
25
20
5
18

Precipitation Amount (mm)

0.8
0.9
0.4
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

12
12
12
13
15
17
20
22
25
27
29
30
30
30
30
29
28
27
25
23
21
21
20
19

Feels Like (°C)

10
9
10
11
12
15
19
21
23
26
29
29
29
30
29
29
29
26
25
22
21
22
19
18

Dew Point (°C)

11
11
11
12
14
16
18
19
20
21
22
22
21
23
23
23
23
23
22
21
20
20
19
19

Relative Humidity (%)

93
95
96
95
93
90
88
80
74
71
65
61
58
63
66
69
74
81
83
89
92
92
95
96

Pressure (mb)

1023
1023
1023
1023
1023
1022
1022
1022
1022
1021
1020
1020
1019
1019
1019
1020
1020
1019
1020
1020
1019
1019
1019
1019

Ozone (du)

332
333
336
338
339
338
337
337
337
335
333
332
332
333
332
331
329
330
330
338
338
333
332
332

Friday 29

Waxing Gibbous 98%

19:53

03:19

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 OK
22 OK
23 OK
00 OK
01 OK
02 OK

Sun - Rise: 04:50, Set: 21:10, Transit: 13:00. Moon - Rise: 19:53, Set: 03:19. Civil Dark: 21:56 - 04:04. Nautical Dark: 23:04 - 02:54. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

74
100
100
100
100
100
100
100
100
100
100
100
100
100
100
86
85
62
46
16
37
38
33
37

Low Clouds (% Sky Obscured)

0
0
0
0
0
30
29
0
20
7
9
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

10
19
55
71
99
92
100
93
85
94
100
100
94
94
94
26
21
22
19
7
20
16
11
6

High Clouds (% Sky Obscured)

74
100
100
100
100
100
100
100
100
99
100
100
100
85
95
50
50
1
2
2
2
23
30
25

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 (%)

2
2
5
4
2
2
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
16
14
15
16
17
17
17
18
19
20
21
21
21
21
21
23
23
19
17
15
14
12
11

Dew Point (°C)

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

Relative Humidity (%)

96
95
95
95
92
88
81
72
68
64
61
65
64
62
61
65
73
79
83
90
90
89
89
90

Pressure (mb)

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

Ozone (du)

330
328
327
326
325
325
326
325
324
325
328
329
331
334
337
339
340
341
338
337
338
337
336
336

Saturday 30

Waxing Gibbous 100%

21:05

03:39

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

Sun - Rise: 04:49, Set: 21:11, Transit: 13:00. Moon - Rise: 21:05, Set: 03:39. Civil Dark: 21:57 - 04:03. Nautical Dark: 23:06 - 02:52. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

35
37
35
29
22
25
24
49
78
100
100
100
40
60
100
92
100
100
100
100
77
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
5
10
14
10
5
0
2
4
6
4
2
0
15
27
38
34
32

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
2
2
2
33
35
42
40
37
26
16
28
87
69
59
52
49
45
44

High Clouds (% Sky Obscured)

20
23
26
24
22
16
14
43
71
100
100
100
40
60
100
90
100
100
100
100
65
99
100
100

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
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)

2
1
1
2
1
2
2
3
3
3
5
5
6
6
7
7
7
6
6
7
7
7
7
7

Chance of Frost

Temperature (°C)

12
11
12
12
13
15
17
19
20
21
22
23
23
23
23
23
22
20
19
17
16
15
15
14

Feels Like (°C)

12
11
11
12
13
15
17
19
20
21
21
22
22
24
23
22
22
20
18
16
15
16
13
12

Dew Point (°C)

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

Relative Humidity (%)

90
90
92
90
84
80
76
71
66
61
58
57
56
56
57
64
72
77
73
78
89
90
92
87

Pressure (mb)

1022
1022
1021
1021
1021
1021
1021
1021
1020
1020
1019
1019
1018
1018
1018
1017
1017
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

335
337
337
338
339
338
337
338
338
337
340
346
348
348
346
348
349
351
356
361
369
360
351
346

Sunday 31

Full Moon 99%

22:11

04:07

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 OK
20 OK
21 Good
22 Good
23 Good
00 Good
01 Good
02 OK

Sun - Rise: 04:49, Set: 21:12, Transit: 13:00. Moon - Rise: 22:11, Set: 04:07. Civil Dark: 21:59 - 04:02. Nautical Dark: 23:08 - 02:51. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
99
98
96
98
99
100
94
87
79
50
47
41
26
14
2
5
3
0
8
15

Low Clouds (% Sky Obscured)

27
31
36
42
39
41
39
41
50
54
44
40
36
24
14
5
22
11
0
0
0
0
8
15

Medium Clouds (% Sky Obscured)

62
28
45
95
98
96
94
96
98
99
90
79
55
41
34
26
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
77
55
27
22
1
0
0
0
0
0
0
0
0
1
1
5
3
0
8
15

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
4
2
1
14
20
25
25
25
21
17
11
10
3
10
12
14
9
2
1
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
7
8
8
9
10
11
11
12
12
12
13
15
14
13
12
11
10
8
6
5
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
84
84
84
83
83
80
74
67
73
70
57
57
62
62
69
72
78
83
90
90
93
95
93

Pressure (mb)

1017
1016
1016
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

345
345
345
346
347
346
346
348
352
356
357
354
348
347
344
341
339
339
338
338
335
331
328
327

Monday 1

Waning Gibbous 97%

23:06

04:45

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

Sun - Rise: 04:48, Set: 21:13, Transit: 13:01. Moon - Rise: 23:06, Set: 04:45. Civil Dark: 22:00 - 04:01. Nautical Dark: 23:10 - 02:49. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

23
32
41
50
44
41
42
63
82
100
100
100
100
100
100
100
100
100
100
89
78
68
72
75

Low Clouds (% Sky Obscured)

23
29
36
43
36
30
23
31
38
46
49
58
60
66
74
81
84
86
88
83
77
68
67
67

Medium Clouds (% Sky Obscured)

1
3
5
11
18
27
34
35
36
36
47
61
84
88
88
88
70
63
54
58
55
49
40
30

High Clouds (% Sky Obscured)

23
32
41
49
42
34
27
48
73
100
100
100
100
100
100
100
100
100
100
78
57
40
34
18

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
5
5
6
6
6
6
5
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
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
6
10
13
16
21
29
62
83
95
95
81
61
46
34
18
16
13

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.6
0.7
0.5
0.3
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
8
8
8
8
12
12
13
14
15
16
18
17
16
16
16
15
13
13
14
13
13
12
11

Dew Point (°C)

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

Relative Humidity (%)

93
91
88
84
83
79
75
72
72
72
74
75
77
80
82
85
87
90
93
96
96
96
98
96

Pressure (mb)

1016
1016
1016
1015
1015
1015
1014
1014
1013
1013
1012
1012
1011
1011
1010
1010
1010
1010
1010
1009
1009
1009
1009
1009

Ozone (du)

326
325
328
332
336
338
340
342
342
342
342
343
344
345
347
350
352
356
361
365
371
377
383
384

Tuesday 2

Waning Gibbous 96%

23:48

05:36

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 OK
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 04:47, Set: 21:14, Transit: 13:01. Moon - Rise: 23:48, Set: 05:36. Civil Dark: 22:01 - 04:00. Nautical Dark: 23:12 - 02:47. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

78
73
68
64
63
61
59
71
85
97
90
77
61
46
31
16
21
39
48
54
64
61

Low Clouds (% Sky Obscured)

66
63
60
56
56
57
58
58
56
54
49
44
39
30
20
9
7
6
5
11
22
32

Medium Clouds (% Sky Obscured)

23
17
10
2
1
1
0
5
10
18
24
27
30
28
27
16
21
35
35
39
38
43

High Clouds (% Sky Obscured)

2
6
12
18
15
10
8
25
45
74
84
77
61
46
31
16
21
39
48
54
64
50

ISS Passover

Visibility (miles)

8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
5

Fog (%)

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

Precipitation Probability (%)

7
6
3
0
5
6
3
11
12
12
16
23
33
40
37
23
30
22
12
11
11
11

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
98
96
96
96
92
86
83
78
74
69
69
68
68
70
70
72
78
83
89
92
95

Pressure (mb)

1009
1009
1010
1010
1010
1010
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1012
1012
1012
1012
1012
1012

Ozone (du)

384
384
386
387
389
391
393
395
397
398
399
401
403
405
400
395
389
382
376
369
365
361

Forecast for Loughton, Milton Keynes, United Kingdom (52.03,-0.77)

Generated: 27/05/26 03:22:59. Forecast: 27/05/26 to 02/06/26. Timezone: UTC+1.00