Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 4

Waning Gibbous 80%

00:57

09:17

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

Sun - Rise: 04:56, Set: 21:32, Transit: 13:14. Moon - Rise: 00:57, Set: 09:17. Civil Dark: 22:20 - 04:08. Nautical Dark: 23:35 - 02:52. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

97
93
87
88
90
90
93
86
79
83
75
98
98
97
100
100
99
48
88
99
94
94
99
100

Low Clouds (% Sky Obscured)

50
50
51
58
54
60
90
70
62
68
70
64
55
62
38
29
50
48
34
38
42
22
17
10

Medium Clouds (% Sky Obscured)

47
81
78
76
71
28
12
45
10
7
15
22
21
22
38
46
86
16
25
49
31
50
82
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
2
1
4
52
42
79
97
96
100
100
50
15
60
54
51
55
97
100

ISS Passover

Visibility (miles)

4
3
6
4
5
7
8
6
8
7
9
9
9
9
9
9
9
9
9
7
9
7
8
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
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
None
None

Precipitation Probability (%)

95
73
73
65
50
44
35
29
23
19
21
20
27
29
7
8
11
10
31
36
39
39
37
28

Precipitation Amount (mm)

0.9
0.6
0.7
0.7
0.4
0.3
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
90
90
89
88
88
87
88
88
87
85
85
85
83
79
75
69
65
63
68
71
68
74
76

Pressure (mb)

1000
1001
1003
1004
1005
1006
1006
1007
1008
1008
1008
1009
1009
1010
1010
1010
1010
1011
1010
1010
1010
1009
1009
1008

Ozone (du)

396
396
396
391
388
384
378
377
374
373
373
372
367
365
370
379
377
374
371
369
370
370
369
369

Friday 5

Waning Gibbous 72%

01:13

10:34

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

Sun - Rise: 04:55, Set: 21:33, Transit: 13:15. Moon - Rise: 01:13, Set: 10:34. Civil Dark: 22:21 - 04:07. Nautical Dark: 23:37 - 02:50. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
100
100
98
95
83
84
78
81
47
75
82
82
100
57
5
90
70
77

Low Clouds (% Sky Obscured)

0
43
47
41
36
44
50
69
95
87
63
51
57
55
47
67
57
61
42
24
0
30
70
77

Medium Clouds (% Sky Obscured)

100
100
100
100
97
97
100
100
97
91
55
2
72
71
12
11
52
27
30
25
0
52
63
65

High Clouds (% Sky Obscured)

100
100
100
100
100
30
0
41
40
40
40
70
53
7
3
1
0
0
60
1
0
0
0
58

ISS Passover

Visibility (miles)

8
9
9
9
9
9
8
9
9
9
9
9
7
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
Very Light Rain
None
Very Light Rain
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

21
47
51
44
29
53
59
68
67
76
42
45
30
25
20
21
22
24
16
21
21
10
11
34

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

13
12
10
12
12
15
17
20
22
24
24
22
20
16
14
12
10
7
7
6
9
10
10
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
10
9
9
8
6
6
6
5
4
5
5
6
8
11
15
16
16
16
15
15
14
13
14

Dew Point (°C)

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

Relative Humidity (%)

80
81
81
81
77
76
76
77
81
84
87
88
90
89
89
75
71
68
72
77
74
81
83
84

Pressure (mb)

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

Ozone (du)

369
370
371
374
379
380
383
384
384
385
386
388
388
394
400
404
406
406
400
391
395
389
386
382

Saturday 6

Waning Gibbous 62%

01:26

11:50

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

Sun - Rise: 04:55, Set: 21:34, Transit: 13:15. Moon - Rise: 01:26, Set: 11:50. Civil Dark: 22:22 - 04:06. Nautical Dark: 23:39 - 02:49. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
97
95
83
58
44
68
85
99
99
99
100
100
99
96
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
93
85
42
55
44
68
83
98
85
91
71
85
56
82
75
76
84
87
80
83
74
71

Medium Clouds (% Sky Obscured)

70
67
64
52
33
58
44
47
54
51
52
37
33
40
83
18
60
92
85
64
39
77
87
86

High Clouds (% Sky Obscured)

100
81
60
50
18
4
20
5
3
53
53
62
100
70
66
78
99
97
68
42
10
40
68
100

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

37
19
24
16
3
0
2
10
23
20
19
17
22
18
27
16
25
32
42
51
54
57
65
68

Precipitation Amount (mm)

0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.2
0.3
0.4
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
96
96
95
89
87
93
93
95
95
95
93
92
90
87
83
81
79
74
79
78
78
79
82

Pressure (mb)

1008
1009
1010
1012
1013
1013
1014
1014
1015
1015
1015
1015
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

377
376
375
377
376
376
374
374
375
373
371
369
368
368
368
368
368
368
366
363
361
361
362
362

Sunday 7

Waning Gibbous 52%

01:37

13:08

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

Sun - Rise: 04:54, Set: 21:35, Transit: 13:15. Moon - Rise: 01:37, Set: 13:08. Civil Dark: 22:23 - 04:06. Nautical Dark: 23:41 - 02:48. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
99
99
100
100
100
100
100
100
100
100
100
100
100
100
90
26
20
25
28
56

Low Clouds (% Sky Obscured)

64
71
71
74
79
84
79
74
70
70
73
75
76
78
80
80
78
77
75
26
20
25
28
56

Medium Clouds (% Sky Obscured)

72
98
98
95
93
86
93
95
98
98
99
100
100
100
100
100
100
98
55
26
20
25
28
32

High Clouds (% Sky Obscured)

100
100
100
77
55
36
64
83
100
100
100
100
100
100
100
100
100
100
65
26
20
25
28
35

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

65
72
72
53
45
43
44
54
81
89
95
95
95
95
95
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0.4
0.4
0.4
0
0
0
0
0
0.5
0.5
0.6
0.9
1.6
2.2
2.8
1.8
1.7
1.8
1.6
1.3
1.3
1.7
2.4
2.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
89
87
84
86
87
87
95
95
95
95
95
95
93
98
93
93
87
80
68
67
69
70

Pressure (mb)

1017
1017
1017
1017
1016
1016
1015
1015
1014
1013
1012
1011
1011
1010
1009
1009
1009
1009
1009
1008
1008
1007
1007
1008

Ozone (du)

364
364
365
364
366
367
367
370
370
371
373
376
376
378
380
388
390
399
412
415
413
414
413
411

Monday 8

Third Quarter 41%

01:48

14:27

19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 OK
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

Sun - Rise: 04:54, Set: 21:36, Transit: 13:15. Moon - Rise: 01:48, Set: 14:27. Civil Dark: 22:24 - 04:05. Nautical Dark: 23:42 - 02:47. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

42
45
17
20
26
20
19
34
9
8
9
5
56
76
77
73
63
51
59
71
88
82
76
70

Low Clouds (% Sky Obscured)

42
45
17
20
26
20
19
34
9
8
9
5
56
74
74
63
55
47
42
35
31
34
41
44

Medium Clouds (% Sky Obscured)

40
20
14
14
9
0
8
17
9
8
9
5
30
30
30
25
19
16
15
17
10
11
14
22

High Clouds (% Sky Obscured)

35
40
17
20
26
1
0
0
0
0
0
0
9
17
35
47
31
5
8
14
22
49
67
70

ISS Passover

Visibility (miles)

6
7
6
5
4
7
9
9
9
8
6
9
6
7
8
9
9
9
9
9
8
8
7
6

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

Precipitation Probability (%)

95
95
95
85
62
47
34
27
22
25
31
35
56
74
95
81
67
57
49
49
57
55
74
92

Precipitation Amount (mm)

2
1.3
1.1
0.6
0.4
0.3
0
0
0
0
0
0
0.3
0.5
1
0.7
0.5
0.4
0.2
0
0.3
0.2
0.5
0.9

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
80
83
87
87
85
85
84
87
87
87
88
87
84
80
79
77
75
74
76
78
80
83
86

Pressure (mb)

1008
1009
1010
1011
1011
1012
1012
1013
1013
1013
1013
1013
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

410
411
409
408
407
406
407
407
407
409
413
416
417
416
414
413
407
401
395
389
383
377
374
370

Tuesday 9

Waning Crescent 30%

01:59

15:50

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

Sun - Rise: 04:54, Set: 21:36, Transit: 13:15. Moon - Rise: 01:59, Set: 15:50. Civil Dark: 22:25 - 04:05. Nautical Dark: 23:44 - 02:45. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

79
88
95
95
96
96
95
94
93
96
98
99
99
99
99
100
100
100
100
100
100
100
99
99

Low Clouds (% Sky Obscured)

38
26
28
45
63
80
84
89
93
96
98
99
98
96
92
88
81
73
79
87
94
95
95
95

Medium Clouds (% Sky Obscured)

31
46
52
56
60
61
47
35
23
33
44
65
69
77
81
81
78
72
75
82
91
74
58
42

High Clouds (% Sky Obscured)

69
49
24
20
15
15
10
10
15
19
22
20
17
15
12
9
5
1
1
0
0
20
43
75

ISS Passover

Visibility (miles)

5
6
6
7
7
7
7
6
5
4
4
4
5
6
7
8
8
8
8
8
7
7
7
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

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

Precipitation Probability (%)

85
85
91
76
68
65
58
55
57
58
64
71
69
69
72
67
64
62
68
74
75
66
54
48

Precipitation Amount (mm)

0.7
0.8
1
0.6
0.5
0.5
0.3
0.3
0.3
0.3
0.3
0.5
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.4
0.4
0.3
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
89
90
91
91
91
93
93
93
95
91
91
91
91
90
90
89
90
90
90
92
93
95
95

Pressure (mb)

1015
1015
1016
1016
1016
1015
1015
1015
1015
1015
1015
1014
1014
1014
1014
1014
1013
1013
1013
1012
1012
1012
1012
1012

Ozone (du)

367
367
367
367
367
367
367
368
369
370
370
370
370
372
373
374
377
379
382
383
384
385
383
381

Wednesday 10

Waning Crescent 20%

02:12

17:19

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 Bad
11 Bad
12 Bad

Sun - Rise: 04:53, Set: 21:37, Transit: 13:16. Moon - Rise: 02:12, Set: 17:19. Civil Dark: 22:26 - 04:04. Nautical Dark: 23:45 - 02:44. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

97
95
93
95
98
100
99
98
98
98
99
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

92
89
88
90
90
89
83
81
82
80
78
77
85
93
100
92
83
75

Medium Clouds (% Sky Obscured)

41
39
42
49
52
60
55
45
40
37
39
41
60
78
97
88
83
78

High Clouds (% Sky Obscured)

80
80
85
80
85
85
86
81
82
85
94
100
99
99
98
99
99
99

ISS Passover

Visibility (miles)

7
5
2
0
0
0
0
3
6
9
9
9
9
9
8
8
8
9

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

45
45
47
41
35
30
42
48
51
64
83
95
95
94
92
76
58
51

Precipitation Amount (mm)

0
0
0.2
0
0
0
0
0
0.2
0.3
0.5
0.8
0.7
0.6
0.5
0.4
0.2
0.2

Wind Speed/Direction (mph)

15
13
12
10
10
9
9
9
10
11
13
15
15
17
18
19
19
18

Chance of Frost

Temperature (°C)

14
14
14
14
14
14
14
14
14
14
14
14
14
14
15
15
16
16

Feels Like (°C)

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

Dew Point (°C)

13
14
14
14
14
14
13
13
13
13
13
13
13
13
13
13
13
13

Relative Humidity (%)

95
96
96
100
98
98
98
96
96
96
95
93
93
90
86
85
81
78

Pressure (mb)

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

Ozone (du)

379
378
377
376
377
378
380
377
373
370
367
364
362
363
365
366
364
362

Forecast for Aberystwyth, Ceredigion, United Kingdom (52.42,-4.08)

Generated: 04/06/26 19:44:52. Forecast: 04/06/26 to 10/06/26. Timezone: UTC+1.00