Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 31

Full Moon 99%

22:11

04:45

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 Bad
21 Bad
22 Good
23 Good
00 Good
01 Good
02 Good
03 Bad
04 Bad
05 Bad

Sun - Rise: 04:48, Set: 21:12, Transit: 13:00. Moon - Rise: 22:11, Set: 04:45. Civil Dark: 21:59 - 04:01. Nautical Dark: 23:08 - 02:51. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

60
69
76
97
100
100
99
100
96
86
79
70
53
39
69
50
7
0
6
6
0
44
51
87

Low Clouds (% Sky Obscured)

58
57
59
61
45
50
40
36
40
38
39
59
3
39
51
45
7
0
0
0
0
0
40
43

Medium Clouds (% Sky Obscured)

55
46
74
93
88
96
97
90
95
70
44
37
33
18
34
17
0
0
0
0
0
19
5
37

High Clouds (% Sky Obscured)

60
69
76
77
100
100
95
78
16
9
2
0
0
0
0
0
0
0
3
2
0
3
51
70

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
2
17
6
19
25
23
28
26
5
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
79
79
72
66
64
62
63
63
60
60
64
69
74
80
88
93
95
96
96
96
96
96
96

Pressure (mb)

1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

347
347
349
348
350
351
354
358
357
357
360
365
359
351
348
343
341
341
341
341
340
339
340
338

Monday 1

Waning Gibbous 97%

23:06

05:36

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
03 Bad
04 Bad
05 Bad

Sun - Rise: 04:47, Set: 21:13, Transit: 13:01. Moon - Rise: 23:06, Set: 05:36. Civil Dark: 22:00 - 04:00. Nautical Dark: 23:10 - 02:49. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

97
88
94
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

64
40
44
65
47
42
49
70
51
63
83
70
61
78
80
87
82
86
64
79
68
67
62
81

Medium Clouds (% Sky Obscured)

46
36
51
99
100
100
100
100
99
100
99
100
100
100
100
100
100
100
100
100
100
100
100
98

High Clouds (% Sky Obscured)

71
74
60
69
100
100
93
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
50

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
8
9
9
3
3
7
1
1
2
1
2
6
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
Very Light Rain
Light Rain
Light Rain
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None

Precipitation Probability (%)

0
0
0
0
1
20
20
38
64
79
83
45
56
84
95
95
95
95
95
95
95
95
80
32

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.3
0.5
0.6
0
0
0.4
2.1
0.7
1.3
0.6
0.5
0.7
1
1
0.3
0

Wind Speed/Direction (mph)

6
7
9
10
10
12
11
10
10
14
12
12
13
13
12
12
12
12
12
11
12
9
11
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
92
84
77
71
65
80
81
78
62
67
88
85
86
93
98
96
96
96
98
98
98
96
96

Pressure (mb)

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

Ozone (du)

337
337
336
334
334
333
333
334
335
336
337
338
340
341
342
343
346
350
353
356
363
366
369
370

Tuesday 2

Waning Gibbous 93%

23:48

No Set

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
01 OK
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 04:46, Set: 21:14, Transit: 13:01. Moon - Rise: 23:48, Set: No Set. Civil Dark: 22:01 - 03:59. Nautical Dark: 23:12 - 02:47. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

84
82
74
85
100
100
99
95
88
91
85
85
72
86
90
43
34
24
30
41
70
80
87
93

Low Clouds (% Sky Obscured)

64
67
62
73
86
70
73
69
60
61
49
43
33
29
36
36
34
24
30
28
27
25
32
39

Medium Clouds (% Sky Obscured)

75
56
27
42
5
19
34
42
38
19
25
30
15
26
22
18
2
0
0
5
12
18
24
31

High Clouds (% Sky Obscured)

3
6
4
27
60
65
70
76
67
71
67
79
26
50
43
0
0
0
1
11
43
50
66
83

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

49
65
85
80
67
88
80
64
69
84
78
72
70
72
72
3
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0.4
0.6
0.5
0
0.4
0.3
0
0.2
0.5
0.3
0.3
0.3
0.4
0.7
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
13
13
15
14
14
14
14
14
15
15
16
16
16
15
13
13
13
11
11
10
8
8
8

Dew Point (°C)

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

Relative Humidity (%)

96
95
90
90
90
85
78
68
68
67
74
76
78
82
87
93
93
95
96
96
98
98
98
98

Pressure (mb)

1003
1003
1003
1003
1003
1004
1004
1003
1003
1003
1004
1004
1004
1004
1005
1006
1007
1007
1008
1008
1008
1008
1008
1008

Ozone (du)

377
380
385
393
393
391
395
396
397
397
398
398
396
397
397
392
388
383
380
376
370
366
361
359

Wednesday 3

Waning Gibbous 88%

00:19

06:39

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
03 Bad
04 Bad
05 Bad

Sun - Rise: 04:46, Set: 21:15, Transit: 13:01. Moon - Rise: 00:19, Set: 06:39. Civil Dark: 22:02 - 03:58. Nautical Dark: 23:14 - 02:46. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
96
91
86
81
63
56
62
63
61
71
81

Low Clouds (% Sky Obscured)

53
62
57
58
77
89
100
100
100
100
78
61
42
48
54
54
66
52
44
59
63
61
60
60

Medium Clouds (% Sky Obscured)

38
79
74
94
91
88
78
76
81
80
86
91
100
83
63
45
31
6
6
3
3
3
8
19

High Clouds (% Sky Obscured)

100
100
100
100
100
99
89
98
97
96
98
99
100
92
84
31
25
12
0
0
0
0
8
8

ISS Passover

Visibility (miles)

2
9
9
9
9
5
6
9
9
0
9
9
9
9
8
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
7
10
12
48
58
58
14
24
31
32
20
18
37
29
19
27
28
28
20
22
12
10
2

Precipitation Amount (mm)

0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
95
93
84
74
83
90
93
96
96
92
83
79
79
85
85
86
84
90
93
89
92
93
90

Pressure (mb)

1008
1008
1008
1008
1007
1006
1006
1005
1004
1003
1002
1002
1001
1000
1000
1000
1000
1000
1000
999
999
999
999
1000

Ozone (du)

357
354
353
353
352
352
352
355
357
358
359
365
368
379
392
401
407
400
398
398
394
389
387
388

Thursday 4

Waning Gibbous 81%

00:41

07:50

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 Good
01 OK
02 OK
03 OK
04 Bad
05 Bad

Sun - Rise: 04:45, Set: 21:16, Transit: 13:01. Moon - Rise: 00:41, Set: 07:50. Civil Dark: 22:04 - 03:58. Nautical Dark: 23:16 - 02:44. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

89
91
92
94
92
90
87
91
96
100
96
91
87
87
77
61
37
17
0
9
18
27
37
47

Low Clouds (% Sky Obscured)

59
60
60
65
58
56
50
46
46
46
41
35
31
56
48
39
26
13
0
9
18
27
37
46

Medium Clouds (% Sky Obscured)

33
81
64
83
81
52
66
74
82
98
67
84
74
70
70
61
37
17
0
9
18
26
30
41

High Clouds (% Sky Obscured)

20
30
30
25
20
16
20
16
8
25
25
16
25
40
45
30
25
17
0
9
17
8
8
7

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 (%)

7
23
34
38
37
31
20
17
18
6
3
3
4
15
13
6
11
9
6
13
15
16
23
31

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)

13
13
14
15
17
17
17
18
18
17
17
16
15
14
12
10
9
8
8
7
7
6
5
5

Chance of Frost

Temperature (°C)

12
13
13
14
15
16
17
17
18
17
17
17
16
16
14
13
12
11
11
10
9
9
9
9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
89
87
86
78
70
71
63
58
60
61
61
64
66
67
68
70
72
74
78
82
85
88
90

Pressure (mb)

1000
1000
1001
1001
1001
1002
1002
1002
1003
1003
1003
1004
1004
1004
1005
1005
1006
1006
1006
1006
1006
1006
1006
1006

Ozone (du)

386
380
376
375
375
376
370
367
364
359
357
354
349
347
348
348
348
350
352
354
358
362
367
369

Friday 5

Waning Gibbous 72%

00:58

09:05

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
03 Bad
04 Bad
05 Bad

Sun - Rise: 04:44, Set: 21:17, Transit: 13:01. Moon - Rise: 00:58, Set: 09:05. Civil Dark: 22:05 - 03:57. Nautical Dark: 23:18 - 02:43. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

57
69
81
93
95
98
100
96
93
88
90
93
97
97
96
92
85
78
72
74
75
76
80
81

Low Clouds (% Sky Obscured)

50
45
42
39
51
62
74
73
74
72
62
53
42
43
44
44
45
50
53
62
66
69
66
66

Medium Clouds (% Sky Obscured)

56
69
81
93
95
98
100
95
87
74
74
74
72
64
47
40
24
14
8
8
9
8
6
4

High Clouds (% Sky Obscured)

4
10
13
13
9
5
5
6
8
10
13
15
12
15
9
3
11
19
31
30
21
12
26
43

ISS Passover

Visibility (miles)

9
9
7
4
2
3
5
7
7
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

41
61
82
95
95
95
95
95
95
87
59
43
39
35
30
21
23
17
3
3
1
0
0
0

Precipitation Amount (mm)

0
0.3
0.5
0.9
1.2
1.4
1.5
1.1
0.8
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
95
95
96
96
96
95
95
89
82
78
74
71
69
73
77
83
86
88
91
91
91
91
88

Pressure (mb)

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

Ozone (du)

371
373
375
376
378
385
392
400
402
405
408
405
403
400
393
386
380
376
372
369
367
366
364
363

Saturday 6

Waning Gibbous 69%

01:12

10:21

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: 04:44, Set: 21:18, Transit: 13:01. Moon - Rise: 01:12, Set: 10:21. Civil Dark: 22:06 - 03:56. Nautical Dark: 23:20 - 02:42. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

83
86
88
91
96
92
88
79
76
88
92
96
100
97
85
71
67
59
61

Low Clouds (% Sky Obscured)

60
59
59
59
59
65
71
76
76
88
78
63
47
31
17
3
4
8
9

Medium Clouds (% Sky Obscured)

2
7
11
20
20
20
25
30
30
30
41
57
72
73
68
64
59
58
52

High Clouds (% Sky Obscured)

60
55
57
63
44
27
8
5
3
0
3
3
5
6
6
7
13
18
52

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

0
12
13
6
43
64
83
94
95
95
95
95
91
64
42
1
1
1
0

Precipitation Amount (mm)

0
0
0
0
0
0.2
0.4
0.6
0.9
1.3
1
0.8
0.9
0.4
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

8
9
9
8
8
9
9
9
9
9
9
9
10
10
9
9
9
9
9

Relative Humidity (%)

87
85
77
69
62
64
64
64
65
64
64
66
68
70
73
75
77
80
83

Pressure (mb)

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

Ozone (du)

362
361
362
362
363
363
362
362
361
359
358
355
353
350
351
352
353
357
361

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

Generated: 31/05/26 06:17:48. Forecast: 31/05/26 to 06/06/26. Timezone: UTC+1.00