Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 15

Waxing Crescent 18%

10:34

21:21

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
21 Bad

Sun - Rise: 05:48, Set: 20:21, Transit: 13:05. Moon - Rise: 10:34, Set: 21:21. Civil Dark: 20:59 - 05:10. Nautical Dark: 21:47 - 04:22. Astro Dark: 22:48 - 03:25

Total Clouds (% Sky Obscured)

87
58
54
88
100
89
95
100
100
100
80
96
98
78
73
89
85
85
95
100
100
63
57
100

Low Clouds (% Sky Obscured)

25
25
27
43
70
87
93
95
91
88
33
33
16
1
13
6
14
0
1
1
50
60
54
45

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
3
60
72
92
57
89
91
42
38
40
48
42
36
72
76
38
55
58

High Clouds (% Sky Obscured)

0
0
1
50
100
46
74
100
100
69
39
0
68
33
12
30
73
78
82
100
100
35
35
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 (%)

2
0
15
1
0
4
1
7
13
5
10
14
2
5
4
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
5
4
3
3
3
2
2
3
5
6
4
5
5
6
7
7
7
7
7
8
7
7
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
14
15
16
16
15
15
13
13
10
9
7
7
5
4
5
5
3
3
2
2
1
1
1

Relative Humidity (%)

62
67
75
84
86
85
82
77
73
63
56
50
44
34
30
30
30
27
25
23
24
25
26
29

Pressure (mb)

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

Ozone (du)

322
324
322
321
320
319
318
316
316
316
316
317
318
319
320
320
321
321
320
320
319
321
322
321

Sunday 16

Waxing Crescent 27%

11:52

21:35

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
21 Bad

Sun - Rise: 05:49, Set: 20:19, Transit: 13:04. Moon - Rise: 11:52, Set: 21:35. Civil Dark: 20:57 - 05:12. Nautical Dark: 21:44 - 04:24. Astro Dark: 22:44 - 03:28

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
99
96
98
99
100
95
91
93
96
99
100
100
100
100
93
96
96
82

Low Clouds (% Sky Obscured)

8
25
25
81
32
82
30
70
67
81
38
26
43
64
65
64
38
42
51
67
65
57
80
55

Medium Clouds (% Sky Obscured)

80
79
100
96
96
95
82
92
90
96
80
69
36
41
48
84
100
99
94
100
90
92
89
48

High Clouds (% Sky Obscured)

99
100
100
100
100
100
92
75
74
91
100
68
54
37
55
73
43
72
66
0
1
5
13
9

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
1
2
2
1
0
0
0
0
0
0
0
0
0
0
6
12
19
23
6
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

1
1
2
3
9
13
13
14
13
13
14
13
12
11
11
10
9
10
11
11
11
11
11
11

Relative Humidity (%)

30
32
33
38
58
77
77
85
82
79
77
67
56
49
46
43
40
43
47
50
50
51
52
53

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1015
1015
1016

Ozone (du)

320
319
319
317
315
314
314
312
311
310
308
307
306
305
302
301
301
301
304
305
303
302
304
304

Monday 17

Waxing Crescent 36%

13:09

21:51

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
21 Bad

Sun - Rise: 05:51, Set: 20:17, Transit: 13:04. Moon - Rise: 13:09, Set: 21:51. Civil Dark: 20:54 - 05:14. Nautical Dark: 21:42 - 04:27. Astro Dark: 22:41 - 03:31

Total Clouds (% Sky Obscured)

98
100
79
85
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
96
92
89

Low Clouds (% Sky Obscured)

62
81
37
50
76
80
65
90
88
100
100
92
63
80
62
53
48
20
23
13
0
0
0
0

Medium Clouds (% Sky Obscured)

41
39
37
31
40
44
63
98
95
98
98
96
96
100
99
100
98
100
90
84
56
84
92
89

High Clouds (% Sky Obscured)

64
62
48
57
92
72
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
84
74
64

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
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
1
2
2
5
27
95
84
40
22
11
3
4
14
21
14
1
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
1.4
0.6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
4
5
6
7
8
9
10
10
11
11
11
13
12
12
12
12
13
14
14
14
13
12
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

11
10
10
10
10
10
10
10
12
13
14
15
16
15
16
15
13
11
10
8
7
7
7
9

Relative Humidity (%)

54
55
55
60
60
60
62
64
68
73
76
80
77
67
67
64
53
43
41
37
35
36
38
50

Pressure (mb)

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

Ozone (du)

299
298
298
299
299
300
299
299
300
301
303
304
305
307
306
306
306
306
305
304
304
304
305
305

Tuesday 18

Waxing Crescent 46%

14:25

No Set

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

Sun - Rise: 05:52, Set: 20:15, Transit: 13:04. Moon - Rise: 14:25, Set: No Set. Civil Dark: 20:52 - 05:16. Nautical Dark: 21:39 - 04:29. Astro Dark: 22:37 - 03:34

Total Clouds (% Sky Obscured)

68
51
43
17
27
42
32
28
23
26
40
49
61
69
72
71
71
28
26
32
18
24
65
10

Low Clouds (% Sky Obscured)

0
0
0
1
1
2
3
3
3
10
18
31
57
61
64
61
61
10
8
16
2
9
37
4

Medium Clouds (% Sky Obscured)

68
51
23
12
14
42
32
28
0
0
0
0
2
5
7
10
12
13
13
12
12
9
7
4

High Clouds (% Sky Obscured)

54
46
43
16
27
42
32
28
23
26
35
35
30
2
5
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
1
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
9
7
7
7
7
8
7
6
7
8
9
9
10
11
12
12
12
12
13
12
10
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
10
10
10
10
9
9
9
9
9
9
8
8
8
9
10
11
9
6
4
4
3
4
3

Relative Humidity (%)

60
63
67
70
71
71
69
73
74
73
63
55
50
48
49
50
52
46
34
30
31
30
35
34

Pressure (mb)

1010
1011
1011
1011
1010
1010
1010
1010
1010
1011
1011
1011
1010
1010
1010
1009
1009
1009
1008
1008
1008
1007
1008
1008

Ozone (du)

305
305
305
304
306
307
308
311
313
314
315
317
319
318
318
318
317
320
322
323
323
323
325
327

Wednesday 19

Waxing Crescent 56%

15:38

22:11

22 Good
23 Good
00 Good
01 OK
02 OK
03 OK
04 OK
05 OK
06 OK
07 OK
08 OK
09 OK
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 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: 21:36 - 04:31. Astro Dark: 22:34 - 03:36

Total Clouds (% Sky Obscured)

10
12
13
20
26
34
37
36
37
39
40
39
56
76
97
94
92
90
93
95
98
89
76
66

Low Clouds (% Sky Obscured)

2
1
0
5
11
17
18
19
24
23
19
17
23
39
62
71
80
86
91
95
98
89
76
66

Medium Clouds (% Sky Obscured)

5
7
9
10
9
8
4
3
0
3
7
11
19
27
35
33
31
24
12
8
13
14
7
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
2
8
12
18
21
21
12

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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
4
9
4
20
24
27
45
61
77
79
84
91

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.6
0.6
0.6
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
15
14
13
13
12
12
12
11
12
14
16
18
19
21
21
21
21
21
20
20
20
19
18

Feels Like (°C)

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

Dew Point (°C)

5
6
6
6
6
6
7
7
7
6
6
7
7
7
6
6
6
6
6
5
5
5
5
6

Relative Humidity (%)

46
53
58
60
62
66
70
71
72
67
58
53
48
44
38
38
38
38
36
37
37
38
41
44

Pressure (mb)

1009
1009
1009
1009
1009
1009
1009
1009
1009
1010
1010
1010
1010
1010
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009

Ozone (du)

327
326
326
326
325
325
326
327
328
329
331
333
332
331
331
329
329
330
330
330
330
331
331
331

Thursday 20

First Quarter 66%

16:43

22:40

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
21 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: 21:34 - 04:33. Astro Dark: 22:31 - 03:39

Total Clouds (% Sky Obscured)

62
59
56
66
77
88
92
95
97
96
95
95
93
90
88
83
79
74
74
73
72
66
62
58

Low Clouds (% Sky Obscured)

62
59
56
66
77
88
92
95
97
93
87
81
76
72
67
68
69
70
71
73
72
66
62
58

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
5
12
21
33
35
40
38
35
25
17
11
7
9
8
10
9
7
8

High Clouds (% Sky Obscured)

8
3
0
0
1
1
2
2
2
28
61
95
64
32
0
2
4
5
3
4
8
8
7
10

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

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

Precipitation Probability (%)

76
60
35
48
49
36
47
47
39
59
71
81
76
67
54
45
35
19
17
13
6
9
9
0

Precipitation Amount (mm)

0.5
0.3
0
0
0
0
0
0
0
0
0.4
0.6
0.5
0.4
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
16
15
14
14
14
14
14
14
14
15
16
17
17
17
18
18
18
18
18
17
17
16
15

Feels Like (°C)

17
17
16
16
12
12
12
13
13
13
12
13
12
12
12
12
17
16
17
16
17
17
13
13

Dew Point (°C)

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

Relative Humidity (%)

47
55
61
70
74
76
79
82
84
87
76
68
59
52
47
42
40
40
40
42
47
50
53
53

Pressure (mb)

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

Ozone (du)

330
330
329
328
328
328
329
327
324
322
322
321
320
320
320
319
319
319
318
320
322
324
325
326

Friday 21

Waxing Gibbous 75%

17:38

23:18

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

Sun - Rise: 05:57, Set: 20:09, Transit: 13:03. Moon - Rise: 17:38, Set: 23:18. Civil Dark: 20:45 - 05:21. Nautical Dark: 21:31 - 04:35. Astro Dark: 22:27 - 03:42

Total Clouds (% Sky Obscured)

56
60
58
64
67
69
64
59
54
50
46
42
42
42
43
38
38
34
36
42
53

Low Clouds (% Sky Obscured)

56
60
58
35
46
62
59
56
50
45
42
38
34
30
30
25
20
15
20
27
33

Medium Clouds (% Sky Obscured)

8
15
18
13
9
5
4
3
3
3
4
4
11
17
23
22
22
19
19
19
21

High Clouds (% Sky Obscured)

9
7
0
5
11
23
25
27
29
24
23
22
21
19
16
17
17
19
28
35
46

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

Fog (%)

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
1
0
8
10
10
9
10
12
12
9
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
12
12
12
10
11
11
11
10
10
10
9
9
10
10
11
17
17
17
16
17

Dew Point (°C)

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

Relative Humidity (%)

55
58
61
64
70
77
84
81
80
80
68
57
48
43
39
35
34
33
33
35
38

Pressure (mb)

1016
1016
1016
1016
1017
1017
1017
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1018
1018
1018
1019

Ozone (du)

326
326
326
325
326
326
327
329
331
332
334
336
338
338
339
339
339
339
339
339
340

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

Generated: 15/08/26 22:01:43. Forecast: 15/08/26 to 21/08/26. Timezone: UTC+1.00