Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 14

Waxing Crescent 10%

09:14

20:58

21 OK
22 OK
23 OK
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 OK
15 OK
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 05:46, Set: 20:23, Transit: 13:05. Moon - Rise: 09:14, Set: 20:58. Civil Dark: 21:03 - 05:08. Nautical Dark: 21:52 - 04:20. Astro Dark: 22:51 - 03:22

Total Clouds (% Sky Obscured)

13
34
41
63
99
99
100
85
85
91
59
73
58
46
60
76
56
42
35
57
59
69
67
78

Low Clouds (% Sky Obscured)

0
0
0
5
3
1
7
9
18
30
26
19
24
33
52
60
39
25
24
39
59
69
67
78

Medium Clouds (% Sky Obscured)

13
29
32
42
90
87
57
38
42
60
26
17
13
2
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

13
34
41
63
97
96
100
58
61
42
8
37
12
0
0
0
0
0
0
23
2
34
2
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 (%)

9
3
0
10
6
4
4
0
2
13
6
0
0
0
0
0
0
0
0
0
0
0
0
2

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)

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

Chance of Frost

Temperature (°C)

27
24
23
22
21
20
19
18
17
17
17
18
20
21
22
23
24
25
25
26
26
25
25
23

Feels Like (°C)

26
22
20
20
18
18
17
16
15
15
15
17
17
20
22
22
22
23
25
26
26
25
24
23

Dew Point (°C)

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

Relative Humidity (%)

40
44
56
65
68
70
73
73
71
71
70
66
63
57
51
47
45
44
44
43
43
42
44
56

Pressure (mb)

1014
1015
1015
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016

Ozone (du)

308
309
310
310
310
311
311
312
312
313
314
316
318
321
323
324
325
324
319
317
317
316
320
319

Saturday 15

Waxing Crescent 18%

10:34

21:10

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
19 Bad
20 Bad

Sun - Rise: 05:48, Set: 20:21, Transit: 13:05. Moon - Rise: 10:34, Set: 21:10. Civil Dark: 20:59 - 05:10. Nautical Dark: 21:49 - 04:22. Astro Dark: 22:48 - 03:25

Total Clouds (% Sky Obscured)

60
62
99
100
100
92
97
87
91
100
100
100
100
99
100
69
77
61
47
53
81
100
96
100

Low Clouds (% Sky Obscured)

23
27
20
22
33
33
52
75
70
50
44
49
23
19
32
42
2
2
2
10
9
10
3
1

Medium Clouds (% Sky Obscured)

0
0
40
40
17
10
5
13
86
85
99
100
96
98
68
69
39
45
36
47
37
29
49
92

High Clouds (% Sky Obscured)

60
62
99
100
100
77
90
66
51
100
100
100
76
60
99
35
21
4
2
2
41
100
85
100

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 (%)

13
2
1
2
1
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)

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

Chance of Frost

Temperature (°C)

22
21
20
19
18
17
16
16
15
15
15
16
17
18
19
21
22
23
24
24
24
24
23
22

Feels Like (°C)

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

Dew Point (°C)

12
11
13
15
16
15
15
14
12
12
11
11
11
11
10
8
7
4
1
-1
-1
1
3
6

Relative Humidity (%)

52
52
63
80
86
89
90
90
83
82
78
74
69
62
53
44
38
28
21
19
18
21
26
34

Pressure (mb)

1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019
1018
1018
1018
1018
1017
1017
1017
1017
1017

Ozone (du)

319
318
317
316
315
316
316
316
317
318
317
317
316
316
319
323
326
327
328
325
324
319
317
316

Sunday 16

Waxing Crescent 27%

11:52

21:21

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
19 Bad
20 Bad

Sun - Rise: 05:49, Set: 20:19, Transit: 13:04. Moon - Rise: 11:52, Set: 21:21. Civil Dark: 20:57 - 05:12. Nautical Dark: 21:47 - 04:24. Astro Dark: 22:44 - 03:28

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
98
97
94
97
97
83
82
82
96
99
87
97
99
99
93
88
80

Low Clouds (% Sky Obscured)

0
2
27
67
33
42
55
59
45
49
39
22
23
7
28
24
36
43
58
79
73
70
72
55

Medium Clouds (% Sky Obscured)

100
93
100
96
100
87
54
83
34
89
57
71
62
32
36
79
94
63
97
98
98
75
36
42

High Clouds (% Sky Obscured)

100
100
100
100
50
42
100
78
45
46
75
80
24
58
54
65
54
7
2
2
2
8
6
5

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
8
10
0
0
0
0
0
0
0
0
3
11
1
1
6
15
3
8
13
18

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

Chance of Frost

Temperature (°C)

20
19
19
18
18
18
18
17
17
16
17
18
20
21
22
22
23
23
24
23
22
22
22
21

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

56
60
59
61
59
58
56
52
53
57
56
52
48
46
44
41
38
42
39
46
49
48
47
52

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018
1017
1017
1017
1017
1017
1016
1016
1016
1015

Ozone (du)

317
317
316
314
312
311
310
309
308
305
303
302
302
300
298
297
296
295
296
296
297
298
298
297

Monday 17

Waxing Crescent 36%

13:09

21:35

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
19 Bad
20 Bad

Sun - Rise: 05:51, Set: 20:17, Transit: 13:04. Moon - Rise: 13:09, Set: 21:35. Civil Dark: 20:54 - 05:14. Nautical Dark: 21:44 - 04:27. Astro Dark: 22:41 - 03:31

Total Clouds (% Sky Obscured)

85
81
75
71
77
89
91
79
98
100
100
99
100
100
100
100
100
100
100
100
100
67
54
80

Low Clouds (% Sky Obscured)

66
61
51
56
64
54
74
57
74
78
82
72
71
71
70
68
25
22
21
26
31
40
37
32

Medium Clouds (% Sky Obscured)

32
29
38
25
19
71
15
17
52
13
16
17
25
27
26
39
34
29
36
31
35
44
39
72

High Clouds (% Sky Obscured)

7
27
47
59
55
53
51
52
82
100
72
81
100
100
100
100
100
100
100
99
98
56
41
42

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 (%)

23
24
27
28
28
27
24
32
34
37
25
16
14
21
14
5
1
1
0
0
0
0
1
1

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
4
6
8
10
10
10
9
9
9
10
9
10
11
11
13
13
14
14
14
13
13
11
10

Chance of Frost

Temperature (°C)

20
20
20
19
19
19
19
19
19
19
19
20
21
22
23
24
25
26
27
27
27
26
25
23

Feels Like (°C)

21
20
19
18
17
16
16
17
18
18
18
20
20
21
21
22
23
23
23
23
22
22
23
21

Dew Point (°C)

12
11
11
11
9
9
11
14
15
16
17
17
17
17
17
15
12
9
7
6
4
3
3
5

Relative Humidity (%)

58
58
56
58
53
53
62
72
77
85
86
82
77
75
71
55
43
33
28
25
22
22
23
31

Pressure (mb)

1015
1015
1014
1014
1014
1013
1013
1013
1012
1012
1012
1012
1012
1012
1012
1012
1011
1011
1010
1010
1010
1010
1010
1010

Ozone (du)

297
297
296
296
297
296
296
296
296
296
296
298
297
297
296
296
295
295
294
293
294
294
294
294

Tuesday 18

Waxing Crescent 46%

14:25

21:51

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
19 Bad
20 Bad

Sun - Rise: 05:52, Set: 20:15, Transit: 13:04. Moon - Rise: 14:25, Set: 21:51. Civil Dark: 20:52 - 05:16. Nautical Dark: 21:42 - 04:29. Astro Dark: 22:37 - 03:34

Total Clouds (% Sky Obscured)

100
100
99
99
95
92
88
80
73
62
63
54
64
70
79
85
85
87
82
56
52
48
54
62

Low Clouds (% Sky Obscured)

59
61
67
69
77
81
87
80
73
49
63
42
64
59
24
16
14
12
11
5
5
7
3
2

Medium Clouds (% Sky Obscured)

100
99
98
97
90
86
84
80
73
62
0
0
0
4
8
13
25
37
47
33
22
17
18
9

High Clouds (% Sky Obscured)

41
38
35
33
26
15
3
2
3
46
2
2
3
13
64
79
69
59
35
31
27
27
32
41

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
7
12
18
57
91
95
95
95
16
2
7
2
4
10
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0.3
0.4
1.4
0.4
0.9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

22
21
20
19
18
17
16
16
15
15
15
16
17
18
19
20
22
22
23
24
23
22
21
19

Feels Like (°C)

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

Dew Point (°C)

8
8
9
7
8
12
13
14
14
14
13
13
12
11
10
8
7
6
5
5
5
5
6
7

Relative Humidity (%)

40
43
48
45
51
70
82
90
90
92
86
82
72
64
55
45
37
34
31
29
31
34
38
44

Pressure (mb)

1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1011
1011
1011
1011
1011
1011
1010
1010
1010
1010
1010
1010
1010

Ozone (du)

293
293
295
297
296
297
298
299
300
306
316
321
321
321
322
324
324
324
324
323
324
325
325
329

Wednesday 19

Waxing Crescent 56%

15:38

22:11

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

Sun - Rise: 05:54, Set: 20:13, Transit: 13:04. Moon - Rise: 15:38, Set: 22:11. Civil Dark: 20:50 - 05:17. Nautical Dark: 21:39 - 04:31. Astro Dark: 22:34 - 03:36

Total Clouds (% Sky Obscured)

61
40
20
0
0
0
0
2
4
5
17
32
51
59
68
77
73
64
58
60
61
64
68
70

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
4
5
13
20
28
46
62
74
73
64
58
60
52
47
41
34

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
7
12
19
19
19
15
8
4
0
8
15
22
17
13

High Clouds (% Sky Obscured)

61
40
20
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3

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
8
12
17
20
20
19
20
22
23
22
18

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

50
57
61
67
74
74
75
73
73
73
73
67
60
54
54
53
52
51
49
48
51
53
56
58

Pressure (mb)

1011
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013

Ozone (du)

332
335
334
333
332
332
332
333
334
336
338
338
338
338
341
344
347
348
349
349
350
351
352
347

Thursday 20

First Quarter 66%

16:43

22:40

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: 05:56, Set: 20:11, Transit: 13:03. Moon - Rise: 16:43, Set: 22:40. Civil Dark: 20:48 - 05:19. Nautical Dark: 21:36 - 04:33. Astro Dark: 22:31 - 03:39

Total Clouds (% Sky Obscured)

70
71
64
63
60
63
65
51
49
47
57
67
77
71
65
59
67
77
88
89
90
89

Low Clouds (% Sky Obscured)

26
19
14
14
40
46
47
44
41
35
40
46
47
45
44
46
52
58
62
65
65
69

Medium Clouds (% Sky Obscured)

13
13
30
40
40
37
38
36
39
37
34
43
44
45
42
43
39
36
29
25
21
21

High Clouds (% Sky Obscured)

4
3
1
0
2
5
10
9
8
6
13
20
27
17
11
4
11
19
26
28
32
32

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

Fog (%)

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

Precipitation Probability (%)

7
8
6
0
3
3
1
7
12
15
19
21
18
25
32
38
38
39
42
38
36
38

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
16
15
16
15
12
12
12
11
11
10
10
10
10
9
9
9
18
18
19
18
18

Dew Point (°C)

10
9
9
8
8
8
8
9
9
9
9
9
8
8
6
4
2
4
6
8
8
8

Relative Humidity (%)

61
65
66
66
67
70
74
79
81
83
86
77
70
64
54
46
38
42
47
52
53
55

Pressure (mb)

1014
1015
1015
1015
1016
1016
1016
1017
1017
1017
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

342
337
334
330
327
326
326
326
325
323
322
320
318
316
315
314
313
312
312
311
311
310

Forecast for Welwyn Garden City, Hertfordshire, United Kingdom (51.80,-0.21)

Generated: 14/08/26 21:55:11. Forecast: 14/08/26 to 20/08/26. Timezone: UTC+1.00