Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 18

Waxing Crescent 5%

06:46

23:58

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
06 Bad
07 Bad

Sun - Rise: 05:08, Set: 20:56, Transit: 13:03. Moon - Rise: 06:46, Set: 23:58. Civil Dark: 21:38 - 04:26. Nautical Dark: 22:37 - 03:27. Astro Dark: 00:12 - 01:47

Total Clouds (% Sky Obscured)

100
99
95
100
97
100
97
100
96
99
96
100
100
97
98
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

95
82
85
95
91
85
95
100
74
94
80
62
71
75
63
81
88
85
96
93
100
100
100
83

Medium Clouds (% Sky Obscured)

72
64
73
86
88
92
76
82
82
94
85
96
99
91
95
99
100
100
100
95
70
99
15
57

High Clouds (% Sky Obscured)

9
34
86
95
51
0
19
44
73
66
39
92
78
19
71
29
68
66
100
100
85
75
7
99

ISS Passover

Visibility (miles)

8
9
9
5
5
6
7
6
9
6
9
9
9
9
9
9
5
4
9
7
2
1
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
2

Precipitation Type

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

Precipitation Probability (%)

64
95
71
73
71
65
64
57
48
44
31
5
13
30
46
84
95
95
95
95
95
61
28
21

Precipitation Amount (mm)

0.3
0.3
0.3
0.4
0.4
0.3
0.4
0.3
0
0
0
0
0
0
0
0.5
0.9
0.9
1
1
0.6
0.2
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
93
87
81
76
85
87
77
84
83
84
85
87
91
93
93
96
96
96
96
98
98
96
98

Pressure (mb)

1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1010
1010
1009
1008
1007
1006
1006
1006
1005

Ozone (du)

399
391
389
388
388
389
385
381
378
376
375
375
374
374
374
374
375
376
378
382
386
385
385
382

Tuesday 19

Waxing Crescent 12%

08:07

00:51

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
06 Bad
07 Bad

Sun - Rise: 05:07, Set: 20:58, Transit: 13:03. Moon - Rise: 08:07, Set: 00:51. Civil Dark: 21:40 - 04:24. Nautical Dark: 22:39 - 03:25. Astro Dark: 00:19 - 01:39

Total Clouds (% Sky Obscured)

100
98
100
83
90
86
98
92
89
99
93
87
97
100
100
94
99
96
100
100
98
89
99
93

Low Clouds (% Sky Obscured)

86
91
95
66
83
66
68
66
62
65
61
62
67
66
62
81
87
84
89
88
97
76
98
90

Medium Clouds (% Sky Obscured)

94
95
94
75
78
80
36
57
84
89
48
37
42
57
53
88
62
57
82
65
31
32
21
30

High Clouds (% Sky Obscured)

100
57
96
40
0
2
73
0
3
0
0
0
52
85
99
69
0
0
0
1
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

27
31
45
70
82
89
86
81
82
71
51
36
21
13
4
34
56
49
38
41
49
51
22
23

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
92
87
86
90
86
86
89
86
89
89
89
90
93
93
93
95
93
92
93
93
96
96
95

Pressure (mb)

1006
1006
1006
1006
1006
1006
1006
1007
1007
1008
1008
1009
1010
1011
1011
1012
1012
1012
1012
1013
1013
1013
1014
1015

Ozone (du)

384
385
387
385
385
385
385
388
385
386
387
391
390
388
387
387
388
385
382
376
379
379
367
362

Wednesday 20

Waxing Crescent 21%

08:07

01:27

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
06 Bad
07 Bad

Sun - Rise: 05:06, Set: 20:59, Transit: 13:03. Moon - Rise: 08:07, Set: 01:27. Civil Dark: 21:42 - 04:23. Nautical Dark: 22:41 - 03:23. Astro Dark: 00:27 - 01:30

Total Clouds (% Sky Obscured)

97
100
100
100
99
94
91
62
43
50
52
45
62
77
79
100
100
99
98
98
81
87
79
95

Low Clouds (% Sky Obscured)

92
100
100
100
99
88
56
55
43
44
42
32
32
34
29
24
31
42
55
59
57
57
55
59

Medium Clouds (% Sky Obscured)

24
12
91
99
27
17
14
13
0
3
2
5
10
15
13
18
33
33
50
56
35
62
36
40

High Clouds (% Sky Obscured)

3
15
15
15
1
11
14
1
1
1
1
1
17
77
79
100
100
74
51
27
23
37
49
50

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
6
6
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

21
22
38
45
50
24
18
4
28
24
22
12
0
0
0
0
0
8
10
7
10
7
7
3

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
96
93
93
82
80
71
65
68
76
79
85
90
95
96
96
96
96
96
95
96
96
96
93

Pressure (mb)

1016
1017
1017
1018
1019
1019
1020
1020
1020
1021
1021
1022
1023
1023
1024
1024
1024
1024
1024
1025
1025
1025
1026
1026

Ozone (du)

357
354
351
348
349
346
345
344
342
342
343
342
342
342
341
342
342
342
342
342
342
340
338
337

Thursday 21

Waxing Crescent 31%

09:36

01:51

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

Sun - Rise: 05:05, Set: 21:00, Transit: 13:03. Moon - Rise: 09:36, Set: 01:51. Civil Dark: 21:43 - 04:21. Nautical Dark: 22:43 - 03:21. Astro Dark: 00:36 - 01:15

Total Clouds (% Sky Obscured)

92
87
86
65
64
62
55
56
81
78
24
39
62
89
93
98
98
93
84
78
65
56
55
41

Low Clouds (% Sky Obscured)

66
69
68
65
64
54
42
29
25
21
17
11
6
0
0
0
0
0
0
1
1
0
0
0

Medium Clouds (% Sky Obscured)

31
22
25
21
20
23
25
33
30
16
0
5
14
18
32
45
57
48
34
30
28
29
21
38

High Clouds (% Sky Obscured)

40
29
23
7
1
2
2
3
10
14
12
37
62
87
79
92
90
74
50
35
28
22
29
14

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 (%)

1
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)

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

Chance of Frost

Temperature (°C)

13
15
16
17
18
19
20
20
20
20
19
19
17
15
14
13
13
13
13
13
13
14
14
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
84
78
71
67
64
63
64
64
68
73
78
86
89
90
89
87
86
89
93
92
92
93
90

Pressure (mb)

1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025
1025
1025
1025
1025
1025

Ozone (du)

337
338
340
339
338
337
338
338
337
337
336
336
334
333
334
337
339
340
341
340
340
341
341
341

Friday 22

Waxing Crescent 42%

11:03

02:08

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

Sun - Rise: 05:03, Set: 21:02, Transit: 13:03. Moon - Rise: 11:03, Set: 02:08. Civil Dark: 21:45 - 04:20. Nautical Dark: 22:46 - 03:19. Astro Dark: 00:51 - N/A

Total Clouds (% Sky Obscured)

30
17
6
10
12
20
24
36
56
76
96
41
64
85
83
72
58
72
86
100
97
94
91
94

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
9
18
27
22
16
10
26
42
56
54
55
51
53

Medium Clouds (% Sky Obscured)

29
17
3
5
12
13
16
24
56
52
62
7
6
5
5
8
9
20
28
35
24
14
4
5

High Clouds (% Sky Obscured)

21
17
4
10
12
20
2
19
32
55
81
26
57
85
69
44
19
43
67
87
76
63
67
79

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
1
1
3
15
13
13
26
20
0
1
5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
17
18
20
21
21
21
23
21
22
22
22
22
21
21
20
19
18
15
14
14
12
11
11

Dew Point (°C)

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

Relative Humidity (%)

83
81
76
71
69
66
64
63
64
69
74
79
82
85
88
86
86
86
86
87
89
86
86
84

Pressure (mb)

1025
1025
1025
1024
1024
1024
1023
1023
1023
1023
1022
1022
1023
1023
1023
1023
1023
1023
1023
1024
1024
1024
1025
1025

Ozone (du)

342
341
341
340
338
338
336
335
335
335
336
337
337
336
336
335
335
334
334
334
334
335
335
336

Saturday 23

First Quarter 53%

12:26

02:22

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 OK
21 OK
22 OK
23 OK
00 OK
01 OK
02 OK
03 OK
04 OK
05 Bad
06 Bad
07 OK

Sun - Rise: 05:02, Set: 21:03, Transit: 13:03. Moon - Rise: 12:26, Set: 02:22. Civil Dark: 21:46 - 04:19. Nautical Dark: 22:48 - 03:17. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

97
100
84
68
54
56
60
59
54
48
41
37
30
31
33
28
15
20
25
31
39
44
45
30

Low Clouds (% Sky Obscured)

53
53
41
36
31
26
27
27
28
28
26
19
12
5
8
10
11
19
25
31
39
44
45
30

Medium Clouds (% Sky Obscured)

6
7
22
36
51
34
18
4
4
3
3
3
3
3
3
3
3
2
1
0
0
0
0
0

High Clouds (% Sky Obscured)

90
100
70
36
0
0
0
0
0
0
3
20
28
31
27
21
13
7
2
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 (%)

3
0
0
0
0
0
0
0
6
8
7
18
20
24
21
13
2
3
4
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)

5
5
5
5
4
4
4
5
5
5
5
5
4
4
3
3
3
4
4
4
4
4
3
3

Chance of Frost

Temperature (°C)

16
18
19
21
22
24
25
25
25
25
25
24
22
20
18
17
16
16
15
14
14
14
15
15

Feels Like (°C)

16
17
17
19
19
20
27
27
27
28
28
28
26
25
24
23
22
21
17
16
16
16
16
16

Dew Point (°C)

13
14
14
16
16
17
17
17
17
18
19
20
18
17
15
15
15
15
14
14
14
14
14
14

Relative Humidity (%)

81
77
72
70
67
65
64
62
60
66
71
79
80
82
83
87
90
93
95
95
98
96
96
95

Pressure (mb)

1025
1026
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1028
1028
1029
1029
1029
1029
1030
1030
1030
1030
1030
1031

Ozone (du)

336
337
338
338
339
339
339
339
339
339
340
341
340
338
337
337
337
337
336
335
334
333
332
331

Sunday 24

Waxing Gibbous 64%

13:44

02:34

08 OK
09 Good
10 OK
11 OK
12 OK
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 OK
21 OK
22 OK
23 OK
00 OK

Sun - Rise: 05:01, Set: 21:04, Transit: 13:03. Moon - Rise: 13:44, Set: 02:34. Civil Dark: 21:48 - 04:17. Nautical Dark: 22:50 - 03:15. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

20
11
23
34
44
49
57
68
66
67
63
49
32
16
15
13
12

Low Clouds (% Sky Obscured)

20
6
19
32
44
43
43
42
43
45
50
42
29
13
13
12
10

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
0
0

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

0
0
3
2
1
3
6
8
11
13
13
13
13
1
3
3
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
19
20
21
22
23
23
23
23
23
22
22
20
19
17
16
15

Feels Like (°C)

18
19
19
20
20
21
26
25
25
25
25
25
22
21
21
20
19

Dew Point (°C)

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

Relative Humidity (%)

90
86
82
79
74
71
72
74
75
79
80
83
86
89
93
92
90

Pressure (mb)

1031
1031
1031
1031
1031
1031
1030
1030
1030
1030
1030
1030
1030
1031
1031
1031
1031

Ozone (du)

330
330
329
329
328
327
326
325
324
324
324
324
323
323
322
323
323

Forecast for Marlborough, Wiltshire, United Kingdom (51.42,-1.73)

Generated: 18/05/26 07:36:05. Forecast: 18/05/26 to 24/05/26. Timezone: UTC+1.00