Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 25

Waxing Gibbous 74%

14:57

02:41

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

Sun - Rise: 04:53, Set: 21:07, Transit: 13:01. Moon - Rise: 14:57, Set: 02:41. Civil Dark: 21:52 - 04:08. Nautical Dark: 22:58 - 03:01. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
5
0
0
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
5
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

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

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
2
2
2
4
5
5
6
7
7
7
7
6
5
4
5
5
5
5
5
5
4
4
3

Chance of Frost

Temperature (°C)

14
14
16
20
23
25
27
29
30
31
31
31
32
31
30
29
26
24
22
21
19
18
18
17

Feels Like (°C)

16
17
20
23
27
29
31
33
33
33
34
34
35
36
36
34
29
27
25
22
21
20
20
19

Dew Point (°C)

12
12
14
17
19
20
22
22
22
22
22
22
23
24
25
26
24
22
20
18
17
16
15
15

Relative Humidity (%)

90
90
86
82
78
73
70
65
62
59
58
58
60
65
72
81
90
91
88
85
84
85
86
88

Pressure (mb)

1030
1030
1031
1031
1031
1031
1031
1031
1030
1030
1030
1029
1029
1029
1028
1028
1029
1029
1029
1029
1029
1029
1029
1028

Ozone (du)

316
316
316
317
316
315
316
317
316
315
314
313
314
314
314
314
315
315
315
315
315
314
313
314

Tuesday 26

Waxing Gibbous 82%

16:11

02:52

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

Sun - Rise: 04:52, Set: 21:08, Transit: 13:01. Moon - Rise: 16:11, Set: 02:52. Civil Dark: 21:54 - 04:07. Nautical Dark: 23:01 - 02:59. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

0
3
21
19
21
7
17
27
52
44
63
55
53
33
0
1
0
0
43
51
93
55
74
76

Low Clouds (% Sky Obscured)

0
3
21
19
21
0
0
0
0
28
35
0
3
0
0
0
0
0
0
0
0
8
50
56

Medium Clouds (% Sky Obscured)

0
0
0
0
0
3
6
11
28
20
31
36
36
23
0
0
0
0
30
35
43
34
34
33

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
1
11
43
8
0
4

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
2
3
0
0
0
0

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

Precipitation Probability (%)

0
0
1
2
1
0
0
1
3
13
39
24
15
58
93
63
53
22
16
39
40
21
47
33

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.2
0
0
0.2
0.8
0.4
0.3
0
0
0
0
0
0.2
0

Wind Speed/Direction (mph)

3
3
3
4
6
6
6
6
6
6
6
6
6
4
5
8
6
11
10
10
10
11
11
11

Chance of Frost

Temperature (°C)

17
17
18
22
24
26
28
29
30
31
32
32
31
31
30
24
20
18
17
15
14
14
13
13

Feels Like (°C)

19
19
21
24
26
29
30
32
33
34
35
35
36
36
35
28
25
19
17
16
13
12
11
11

Dew Point (°C)

15
15
16
18
18
19
20
22
23
23
24
24
25
25
26
20
17
17
16
15
14
13
13
12

Relative Humidity (%)

88
86
83
77
71
67
64
64
63
62
62
65
67
68
78
78
81
93
98
98
100
98
98
98

Pressure (mb)

1028
1028
1028
1028
1028
1028
1027
1027
1027
1026
1026
1025
1025
1024
1024
1025
1026
1026
1027
1027
1027
1027
1027
1027

Ozone (du)

314
314
315
318
319
320
320
321
322
324
325
325
325
324
324
324
326
327
329
331
332
332
331
331

Wednesday 27

Waxing Gibbous 89%

17:26

03:04

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

Sun - Rise: 04:51, Set: 21:09, Transit: 13:01. Moon - Rise: 17:26, Set: 03:04. Civil Dark: 21:55 - 04:05. Nautical Dark: 23:03 - 02:57. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

89
89
82
80
69
52
57
68
51
49
42
40
34
2
28
71
2
61
57
75
70
55
59
78

Low Clouds (% Sky Obscured)

66
65
43
37
13
5
10
13
6
10
15
15
5
1
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

39
37
33
31
28
20
21
23
19
10
1
0
3
0
8
2
2
12
13
22
23
21
21
53

High Clouds (% Sky Obscured)

14
19
11
3
2
5
8
13
2
3
3
2
0
0
0
45
0
50
56
65
65
55
59
52

ISS Passover

Visibility (miles)

0
0
0
0
0
6
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
Very Light Rain
None

Precipitation Probability (%)

29
21
5
16
4
0
1
1
0
0
0
0
1
0
9
3
0
6
10
5
17
34
50
46

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
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

12
13
13
14
16
17
19
20
22
23
23
24
23
22
20
19
16
15
13
12
11
10
10
10

Feels Like (°C)

11
11
12
13
14
15
17
18
20
22
22
22
22
21
19
18
15
13
11
10
9
9
8
8

Dew Point (°C)

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

Relative Humidity (%)

98
98
98
98
96
93
90
85
74
68
69
72
73
74
75
77
74
73
70
67
67
68
69
77

Pressure (mb)

1027
1027
1028
1028
1028
1028
1028
1028
1027
1027
1026
1026
1025
1025
1025
1026
1026
1026
1026
1026
1026
1025
1025
1025

Ozone (du)

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

Thursday 28

Waxing Gibbous 95%

18:40

03:19

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
03 Bad
04 Bad

Sun - Rise: 04:50, Set: 21:11, Transit: 13:01. Moon - Rise: 18:40, Set: 03:19. Civil Dark: 21:57 - 04:04. Nautical Dark: 23:05 - 02:55. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

90
84
81
42
51
75
91
100
100
100
83
88
75
48
51
79
91
94
97
96
91
94
93
64

Low Clouds (% Sky Obscured)

1
4
6
12
16
12
6
1
6
11
2
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

81
66
80
18
13
8
5
0
10
19
23
18
15
14
18
23
26
35
43
41
27
15
3
1

High Clouds (% Sky Obscured)

27
19
11
5
9
41
73
100
100
99
83
73
53
29
36
74
84
88
93
94
84
92
92
64

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

50
95
82
66
61
39
45
20
5
1
1
2
3
7
2
1
0
0
1
0
4
2
0
0

Precipitation Amount (mm)

0
1
0.6
0.3
0.2
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

10
11
12
14
16
18
20
21
23
24
25
26
26
26
25
23
21
20
19
18
17
16
15
14

Feels Like (°C)

8
8
11
12
15
17
19
20
22
23
25
26
26
26
26
24
21
19
19
18
17
16
13
12

Dew Point (°C)

7
9
11
13
14
15
15
17
18
19
19
19
20
21
21
20
19
18
18
17
15
14
12
11

Relative Humidity (%)

83
84
93
93
86
82
76
75
71
71
68
65
71
75
79
83
89
91
93
93
90
87
86
84

Pressure (mb)

1024
1024
1024
1024
1023
1023
1023
1022
1021
1021
1020
1020
1020
1019
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

337
341
340
340
339
337
335
333
332
332
332
331
334
340
335
333
333
333
331
329
330
330
329
329

Friday 29

Waxing Gibbous 98%

19:55

03:39

05 Bad
06 OK
07 OK
08 Bad
09 Bad
10 Bad
11 Bad
12 OK
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

Sun - Rise: 04:49, Set: 21:12, Transit: 13:01. Moon - Rise: 19:55, Set: 03:39. Civil Dark: 21:58 - 04:03. Nautical Dark: 23:08 - 02:53. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

53
21
45
71
95
76
54
34
51
76
89
93
94
100
100
100
100
96
92
89
83
78
73
60

Low Clouds (% Sky Obscured)

0
0
9
17
26
19
12
5
3
2
0
0
0
0
0
0
0
1
3
4
3
1
0
0

Medium Clouds (% Sky Obscured)

1
3
0
2
43
50
42
34
51
70
87
80
69
69
100
100
100
93
86
79
76
73
70
60

High Clouds (% Sky Obscured)

49
21
45
69
87
64
42
18
18
25
12
33
54
81
18
11
3
2
2
2
6
9
12
20

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
1
1
0
0
0
0
0
0
0
0
0
0
12
10
0
1
1
0
6
13
15
17

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
8
9
10
9
9
8
8
7
6
6
6
5
4
5
4
3
3
3
3
2
2
2

Chance of Frost

Temperature (°C)

13
14
15
16
18
19
20
21
23
23
24
24
24
24
23
19
18
17
16
15
14
14
13
13

Feels Like (°C)

12
13
13
14
15
17
18
20
21
21
22
23
23
23
23
20
19
20
19
19
18
13
13
13

Dew Point (°C)

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

Relative Humidity (%)

84
84
83
77
72
68
68
65
64
62
61
63
64
70
74
76
77
79
82
86
87
87
87
87

Pressure (mb)

1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021
1020
1018
1018
1018
1018
1017
1017
1017
1016
1016

Ozone (du)

329
330
329
329
329
329
330
332
340
338
339
338
337
335
334
334
334
333
334
334
334
335
335
336

Saturday 30

Waxing Gibbous 100%

21:08

04:06

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
03 Bad
04 Bad

Sun - Rise: 04:49, Set: 21:13, Transit: 13:01. Moon - Rise: 21:08, Set: 04:06. Civil Dark: 22:00 - 04:02. Nautical Dark: 23:10 - 02:51. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

49
40
45
51
55
71
85
100
100
100
100
100
100
100
99
96
93
95
98
100
98
96
94
93

Low Clouds (% Sky Obscured)

0
0
3
7
10
8
7
5
4
5
5
22
38
40
50
59
66
60
59
54
54
54
54
63

Medium Clouds (% Sky Obscured)

49
40
45
51
51
64
77
87
85
85
93
91
89
86
81
69
64
44
28
31
37
56
69
56

High Clouds (% Sky Obscured)

25
22
26
29
34
56
79
100
100
100
100
100
100
100
99
96
93
95
98
100
82
67
55
60

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
5
2
5
7
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

17
15
14
13
6
16
19
14
19
17
8
30
44
64
83
94
95
93
81
77
60
39
12
16

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.7
0.9
0.7
0.5
0.5
0.3
0
0
0

Wind Speed/Direction (mph)

3
3
3
5
7
8
9
10
11
10
10
11
10
10
9
8
8
7
7
8
10
10
11
12

Chance of Frost

Temperature (°C)

13
14
14
16
18
20
21
22
23
23
23
24
22
20
18
17
17
16
15
15
15
14
13
13

Feels Like (°C)

13
13
12
14
15
16
16
17
18
23
22
22
22
21
21
18
18
19
18
17
16
14
14
13

Dew Point (°C)

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

Relative Humidity (%)

87
87
86
81
76
71
69
68
66
65
65
64
70
76
83
88
92
96
96
98
98
98
96
96

Pressure (mb)

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

Ozone (du)

336
337
338
339
340
341
341
340
340
339
339
339
341
343
346
347
348
350
349
349
349
351
353
355

Sunday 31

Full Moon 99%

22:14

04:45

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: 04:48, Set: 21:14, Transit: 13:01. Moon - Rise: 22:14, Set: 04:45. Civil Dark: 22:01 - 04:01. Nautical Dark: 23:12 - 02:49. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

93
93
90
87
84
81
77
74
78
79
79
75
71
71
71
66
59
65
81
97

Low Clouds (% Sky Obscured)

72
81
74
68
62
59
56
51
46
44
48
35
21
8
4
4
4
9
15
19

Medium Clouds (% Sky Obscured)

44
31
27
24
21
18
18
15
21
22
26
28
35
38
23
13
5
19
33
47

High Clouds (% Sky Obscured)

65
75
57
49
33
32
30
28
20
15
6
10
11
16
12
9
5
36
68
97

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

19
20
17
13
12
17
17
18
20
19
11
7
3
3
5
6
10
11
8
1

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
93
92
86
80
75
74
73
72
70
68
64
68
70
73
79
86
95
96
96

Pressure (mb)

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

Ozone (du)

354
352
351
349
348
346
348
349
351
352
352
353
354
354
354
353
352
350
350
350

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

Generated: 25/05/26 05:54:34. Forecast: 25/05/26 to 31/05/26. Timezone: UTC+1.00