Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 18

Waning Gibbous 78%

01:45

08:01

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

Sun - Rise: 05:58, Set: 20:08, Transit: 13:03. Moon - Rise: 01:45, Set: 08:01. Civil Dark: 20:44 - 05:21. Nautical Dark: 21:31 - 04:35. Astro Dark: 22:24 - 03:42

Total Clouds (% Sky Obscured)

33
42
61
96
97
98
92
95
94
71
85
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

29
38
47
30
39
27
12
11
0
0
58
59
35
34
44
54
35
81
80
84
90
83
100
78

Medium Clouds (% Sky Obscured)

33
42
46
41
70
76
66
60
36
71
73
88
78
100
100
100
100
95
100
88
100
90
86
93

High Clouds (% Sky Obscured)

11
10
5
30
33
13
20
20
56
45
47
100
100
100
100
100
84
96
100
100
100
100
100
83

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
Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
1
1
3
3
0
0
1
1
6
28
48
62
50
53
44
26
16
13
8

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
4
3
4
5
6
6
8
9
11
12
15
16
17
16
16
14
9
9
9
10
12
13
13

Chance of Frost

Temperature (°C)

7
7
6
6
6
6
7
8
9
11
13
15
15
16
16
15
13
12
11
11
10
10
10
10

Feels Like (°C)

5
4
4
4
3
4
4
4
6
7
8
11
10
11
11
11
9
9
9
8
8
6
6
6

Dew Point (°C)

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

Relative Humidity (%)

90
90
90
90
91
91
91
91
90
81
79
76
64
62
65
68
76
87
87
90
90
87
88
90

Pressure (mb)

1013
1013
1012
1012
1012
1012
1011
1011
1011
1011
1011
1010
1009
1009
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008

Ozone (du)

364
365
367
366
365
365
369
371
371
371
371
370
370
368
369
370
370
371
372
373
374
375
375
375

Saturday 19

Waning Gibbous 69%

02:39

08:58

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

Sun - Rise: 05:56, Set: 20:09, Transit: 13:03. Moon - Rise: 02:39, Set: 08:58. Civil Dark: 20:46 - 05:19. Nautical Dark: 21:33 - 04:32. Astro Dark: 22:27 - 03:38

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
99
96
99
100
100
100
100
100
100
100
100
98
100
100
100
98
92
67

Low Clouds (% Sky Obscured)

71
76
69
42
36
45
72
80
68
51
45
25
3
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

94
100
100
100
88
98
99
96
99
100
100
100
100
100
100
93
95
73
74
82
73
65
62
29

High Clouds (% Sky Obscured)

97
100
100
100
100
100
64
69
50
100
100
100
100
100
100
100
100
64
87
56
57
29
29
59

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

24
41
52
55
42
47
44
40
26
33
56
53
52
45
34
16
12
11
7
5
4
3
1
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
90
93
93
93
90
90
87
85
84
86
89
89
84
84
80
77
73
71
66
67
74
81
84

Pressure (mb)

1007
1007
1007
1007
1007
1007
1008
1008
1008
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1010
1010
1010
1010

Ozone (du)

373
371
370
371
367
367
367
366
369
370
370
372
373
374
375
374
375
374
374
373
374
375
375
374

Sunday 20

Waning Gibbous 59%

03:19

10:10

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

Sun - Rise: 05:54, Set: 20:11, Transit: 13:02. Moon - Rise: 03:19, Set: 10:10. Civil Dark: 20:48 - 05:17. Nautical Dark: 21:35 - 04:30. Astro Dark: 22:30 - 03:35

Total Clouds (% Sky Obscured)

97
95
86
88
65
64
70
68
44
42
59
83
65
98
100
100
100
100
74
63
99
95
87
89

Low Clouds (% Sky Obscured)

0
0
11
27
38
42
44
39
21
18
29
34
55
95
100
100
100
80
64
63
62
64
69
66

Medium Clouds (% Sky Obscured)

33
36
42
82
65
50
17
14
7
42
59
35
51
13
82
34
41
51
56
51
51
57
48
34

High Clouds (% Sky Obscured)

70
51
35
45
41
5
15
9
3
2
41
72
50
19
4
3
3
2
0
3
30
25
9
1

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
3
9
13
7
14
0
0
1
3
4
17
18
20
11
16
15
16
21
27

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)

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

Chance of Frost

Temperature (°C)

6
5
5
5
5
5
5
7
8
10
12
13
14
15
15
15
14
13
13
12
11
10
10
10

Feels Like (°C)

2
2
2
1
1
1
1
2
3
5
7
9
11
12
12
12
12
12
12
11
11
8
8
8

Dew Point (°C)

4
3
3
4
3
3
3
3
4
6
7
9
10
11
12
12
12
12
11
10
9
9
8
8

Relative Humidity (%)

83
85
88
90
88
86
83
76
74
76
72
74
75
76
82
83
87
90
87
88
88
90
90
90

Pressure (mb)

1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1008
1008
1008
1007
1007
1007
1006
1007
1007
1007
1007
1008
1007
1007

Ozone (du)

374
374
372
370
371
370
370
368
368
369
368
367
367
366
365
365
365
365
365
364
364
365
366
366

Monday 21

Third Quarter 48%

03:47

11:31

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

Sun - Rise: 05:52, Set: 20:13, Transit: 13:02. Moon - Rise: 03:47, Set: 11:31. Civil Dark: 20:50 - 05:14. Nautical Dark: 21:37 - 04:27. Astro Dark: 22:33 - 03:32

Total Clouds (% Sky Obscured)

89
66
51
60
62
58
81
99
100
100
100
100
100
100
100
95
90
86
78
74
70
55
23
7

Low Clouds (% Sky Obscured)

70
42
46
52
62
58
71
68
54
56
57
58
63
71
77
71
56
65
54
42
25
15
4
4

Medium Clouds (% Sky Obscured)

68
27
29
36
46
54
51
42
31
31
37
50
55
78
84
69
80
75
74
74
70
55
11
3

High Clouds (% Sky Obscured)

1
4
1
2
1
0
28
54
81
81
71
63
53
53
58
83
61
26
46
54
38
25
13
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
4
2
3
4
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
Very Light Rain
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
Light Rain
Light Rain
None
None
None
None

Precipitation Probability (%)

27
23
7
21
28
37
45
45
34
27
20
13
22
31
26
39
53
59
67
58
41
17
4
4

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
95
96
94
96
95
95
90
91
90
87
78
75
74
73
70
73
83
87
92
96
96
95
95

Pressure (mb)

1007
1007
1007
1007
1007
1008
1008
1008
1008
1009
1009
1009
1009
1009
1009
1009
1009
1010
1010
1011
1012
1013
1013
1013

Ozone (du)

367
367
367
367
368
368
370
373
375
376
376
375
372
369
368
371
371
374
376
377
378
379
378
376

Tuesday 22

Waning Crescent 37%

04:07

12:57

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

Sun - Rise: 05:49, Set: 20:15, Transit: 13:02. Moon - Rise: 04:07, Set: 12:57. Civil Dark: 20:52 - 05:12. Nautical Dark: 21:40 - 04:25. Astro Dark: 22:36 - 03:28

Total Clouds (% Sky Obscured)

39
73
100
95
90
85
79
80
78
83
89
96
95
92
89
82
89
100
100
99
100
99
96
95

Low Clouds (% Sky Obscured)

21
40
58
40
23
10
23
26
39
42
43
46
31
15
0
14
28
42
61
81
100
93
86
79

Medium Clouds (% Sky Obscured)

2
0
0
12
27
77
72
48
49
62
72
86
87
89
89
80
69
68
65
73
84
76
66
60

High Clouds (% Sky Obscured)

25
52
100
81
62
43
34
28
29
33
27
20
19
23
17
38
60
77
76
80
85
81
81
74

ISS Passover

Visibility (miles)

9
9
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

2
1
0
0
0
0
0
0
0
0
0
0
4
8
10
13
14
12
29
44
64
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.8
0.9
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

8
7
7
7
7
6
6
8
10
12
13
14
14
15
15
15
14
14
13
12
11
10
9
9

Feels Like (°C)

6
5
5
5
4
3
4
5
7
9
10
11
11
12
12
11
12
12
12
11
10
10
10
9

Dew Point (°C)

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

Relative Humidity (%)

95
96
96
98
98
94
94
91
85
79
72
64
61
62
62
64
68
73
79
83
88
93
95
96

Pressure (mb)

1014
1014
1014
1014
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

374
370
367
368
368
368
369
372
373
374
375
377
381
378
375
372
368
363
358
356
355
353
353
352

Wednesday 23

Waning Crescent 26%

04:23

14:24

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

Sun - Rise: 05:47, Set: 20:16, Transit: 13:02. Moon - Rise: 04:23, Set: 14:24. Civil Dark: 20:54 - 05:10. Nautical Dark: 21:42 - 04:22. Astro Dark: 22:39 - 03:25

Total Clouds (% Sky Obscured)

95
97
100
100
99
99
93
87
80
88
95
100
99
98
98
95
94
94
89
85
82
81
83
87

Low Clouds (% Sky Obscured)

83
86
94
95
96
97
86
75
62
58
47
37
45
56
63
70
78
87
78
68
58
66
78
87

Medium Clouds (% Sky Obscured)

77
84
91
85
81
93
88
81
74
78
83
89
88
86
82
83
84
85
74
60
48
35
21
8

High Clouds (% Sky Obscured)

50
26
1
3
4
4
7
7
10
36
58
79
55
32
9
9
6
6
7
6
2
4
5
6

ISS Passover

Visibility (miles)

9
9
9
9
8
6
4
6
8
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

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

Precipitation Probability (%)

73
46
25
30
33
35
44
48
50
41
38
38
40
42
42
40
35
25
20
19
14
11
6
2

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
95
93
91
91
93
93
95
93
95
95
96
96
95
95
92
93
93
95
95
96
96
96
96

Pressure (mb)

1016
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1017
1017
1017
1018
1018
1019
1019
1020
1020
1021

Ozone (du)

352
350
349
347
347
346
346
346
346
347
345
344
343
343
343
344
343
342
342
342
342
342
343
343

Thursday 24

Waning Crescent 17%

04:35

15:51

Sun - Rise: 05:45, Set: 20:18, Transit: 13:02. Moon - Rise: 04:35, Set: 15:51. Civil Dark: 20:56 - 05:08. Nautical Dark: 21:44 - 04:19. Astro Dark: 22:42 - 03:21

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Nether Heyford, Northamptonshire, United Kingdom (52.22,-1.04)

Generated: 18/04/25 00:33:51. Forecast: 18/04/25 to 24/04/25. Timezone: UTC+1.00