Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 25

Waxing Gibbous 96%

18:36

04:15

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

Sun - Rise: 06:08, Set: 19:36, Transit: 12:51. Moon - Rise: 18:36, Set: 04:15. Civil Dark: 20:06 - 05:39. Nautical Dark: 20:42 - 05:03. Astro Dark: 21:20 - 04:25

Total Clouds (% Sky Obscured)

72
51
36
24
4
25
24
29
29
33
28
25
27
27
6
27
36
28
48
65
70
90
76
82

Low Clouds (% Sky Obscured)

19
2
8
11
4
15
14
16
19
25
24
22
13
17
3
14
20
18
37
47
40
43
36
47

Medium Clouds (% Sky Obscured)

19
14
19
16
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
30
24
26
29
26

High Clouds (% Sky Obscured)

45
51
36
0
0
0
0
0
0
0
0
0
0
0
0
3
11
6
8
5
19
45
22
11

ISS Passover

Visibility (miles)

9
6
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
2
13
27
32
35
35
37
30
13
3
1
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)

7
7
4
3
3
3
3
2
2
2
2
2
2
2
2
1
2
2
2
1
1
0
1
2

Chance of Frost

Temperature (°C)

20
20
19
18
17
16
15
14
14
13
13
13
13
13
13
17
19
21
23
24
25
26
26
26

Feels Like (°C)

20
22
22
21
19
18
17
17
16
16
15
15
15
15
16
20
23
24
25
27
27
27
27
26

Dew Point (°C)

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

Relative Humidity (%)

65
82
91
93
95
96
95
96
95
96
96
96
96
96
96
95
86
69
57
50
45
41
41
40

Pressure (mb)

1013
1013
1014
1015
1015
1016
1016
1016
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1017
1017
1016
1016

Ozone (du)

337
332
330
331
333
332
331
329
329
326
324
322
322
319
316
314
312
310
309
309
308
307
309
309

Wednesday 26

Waxing Gibbous 99%

19:01

05:23

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:10, Set: 19:34, Transit: 12:51. Moon - Rise: 19:01, Set: 05:23. Civil Dark: 20:04 - 05:40. Nautical Dark: 20:40 - 05:04. Astro Dark: 21:18 - 04:26

Total Clouds (% Sky Obscured)

100
100
100
92
89
100
100
99
99
92
100
100
100
95
94
98
83
99
75
94
99
98
85
96

Low Clouds (% Sky Obscured)

63
77
68
38
25
0
0
0
0
0
0
0
32
29
81
67
20
44
33
29
42
47
32
33

Medium Clouds (% Sky Obscured)

23
22
20
28
40
21
30
38
76
18
37
55
92
58
52
21
27
19
21
25
28
72
31
73

High Clouds (% Sky Obscured)

76
82
89
64
53
99
100
95
99
92
100
100
100
90
43
79
52
98
39
81
96
72
72
84

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
9
3
5
2

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
Light Rain
Very Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
9
32
41
75
76
95
88

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.3
0.9
0.4

Wind Speed/Direction (mph)

3
4
3
3
2
2
2
2
2
2
3
3
3
3
2
3
5
7
9
9
10
12
11
10

Chance of Frost

Temperature (°C)

26
25
23
21
20
19
17
16
15
15
15
14
14
14
15
18
20
23
24
25
27
27
26
25

Feels Like (°C)

26
24
23
21
20
19
18
16
15
15
14
14
14
14
16
18
20
22
24
25
26
27
26
27

Dew Point (°C)

13
16
15
14
15
15
14
13
13
13
13
13
13
13
13
15
15
15
16
19
19
24
21
24

Relative Humidity (%)

45
60
63
66
74
80
82
82
83
85
89
92
92
92
87
82
72
61
61
69
61
86
75
92

Pressure (mb)

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

Ozone (du)

309
309
309
308
307
308
308
307
307
306
306
306
308
308
308
308
308
307
305
306
307
307
307
307

Thursday 27

Waxing Gibbous 100%

19:22

06:31

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:11, Set: 19:33, Transit: 12:51. Moon - Rise: 19:22, Set: 06:31. Civil Dark: 20:02 - 05:41. Nautical Dark: 20:38 - 05:06. Astro Dark: 21:16 - 04:28

Total Clouds (% Sky Obscured)

100
100
87
80
100
100
100
100
100
100
100
100
100
100
100
99
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

34
45
57
33
44
70
53
68
56
63
62
59
68
73
71
67
63
72
33
28
42
40
34
25

Medium Clouds (% Sky Obscured)

66
65
44
20
16
1
8
9
45
54
60
45
51
70
48
71
84
70
84
72
75
11
11
14

High Clouds (% Sky Obscured)

100
100
86
80
100
100
100
100
100
100
100
96
100
100
100
95
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
5
3
7
9
9
9
4
1
1
1
0
4
0
1
7
9
9
8
3
3
6
7

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

79
95
95
95
42
66
33
40
20
8
5
1
8
9
44
48
44
50
57
72
77
66
57
43

Precipitation Amount (mm)

0.2
2.6
1.1
1
0
0.2
0
0
0
0
0
0
0
0
0.2
0.2
0
0
0
0.4
0.6
0.4
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

24
24
23
21
20
20
20
20
19
19
19
19
18
18
18
20
21
23
24
25
26
26
26
26

Feels Like (°C)

26
24
24
23
22
21
21
20
20
20
20
20
20
19
20
22
24
25
26
27
28
29
28
28

Dew Point (°C)

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

Relative Humidity (%)

92
89
97
96
98
98
98
98
98
98
98
100
98
98
100
96
96
95
91
85
86
86
90
90

Pressure (mb)

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

Ozone (du)

308
308
309
309
309
306
304
305
302
302
302
302
303
303
303
304
303
303
303
302
302
304
304
305

Friday 28

Full Moon 99%

19:42

07:40

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:12, Set: 19:31, Transit: 12:51. Moon - Rise: 19:42, Set: 07:40. Civil Dark: 20:01 - 05:42. Nautical Dark: 20:36 - 05:07. Astro Dark: 21:14 - 04:29

Total Clouds (% Sky Obscured)

100
100
60
60
79
82
84
67
70
75
80
75
70
70
65
55
55
60
70
70
70
75
80
80

Low Clouds (% Sky Obscured)

14
8
1
8
35
48
48
42
41
29
14
0
0
0
0
0
0
0
0
0
0
11
23
34

Medium Clouds (% Sky Obscured)

14
14
15
17
20
20
13
7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
60
60
70
70
70
67
70
75
80
75
70
70
65
55
55
60
70
70
70
75
75
71

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 (%)

32
27
11
11
8
0
9
1
0
1
1
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
5
5
4
4
4
4
4
4
4
3
3
3
3
2
2
3
4
5
5
4
4
4
4

Chance of Frost

Temperature (°C)

26
24
22
20
19
18
17
17
16
15
14
13
12
12
13
14
17
19
21
23
24
25
25
25

Feels Like (°C)

27
25
23
23
22
20
18
18
17
16
16
14
13
13
14
16
18
19
21
22
23
24
25
25

Dew Point (°C)

22
21
20
19
19
18
17
17
15
14
14
12
11
12
12
12
11
8
7
7
6
6
6
7

Relative Humidity (%)

82
82
85
91
96
98
98
98
96
96
96
96
96
96
93
86
68
48
40
35
32
30
29
30

Pressure (mb)

1014
1015
1015
1016
1017
1018
1018
1019
1020
1020
1021
1021
1022
1022
1023
1023
1023
1023
1023
1022
1022
1021
1021
1021

Ozone (du)

307
306
307
309
312
312
314
316
316
318
320
321
323
324
324
322
321
321
319
318
319
318
316
314

Saturday 29

Waning Gibbous 95%

20:02

08:49

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

Sun - Rise: 06:13, Set: 19:29, Transit: 12:50. Moon - Rise: 20:02, Set: 08:49. Civil Dark: 19:59 - 05:44. Nautical Dark: 20:34 - 05:08. Astro Dark: 21:12 - 04:31

Total Clouds (% Sky Obscured)

62
41
14
21
19
30
22
43
69
21
21
20
18
11
51
33
33
29
49
71
89
87
86
84

Low Clouds (% Sky Obscured)

29
23
14
12
6
0
12
24
35
21
21
20
18
11
0
0
0
0
7
11
12
7
4
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
2
3
36
56
4
3
0
0
0
0
0
0
0
13
26
38
41
47
50

High Clouds (% Sky Obscured)

48
22
0
21
19
30
14
6
21
2
0
0
3
4
46
32
28
29
33
45
57
51
49
47

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)

4
4
3
2
2
2
2
2
2
2
2
2
2
2
2
1
2
3
4
6
8
10
9
8

Chance of Frost

Temperature (°C)

25
23
20
18
16
14
13
12
11
10
10
10
9
10
12
14
17
21
24
25
27
28
28
28

Feels Like (°C)

25
24
22
19
16
14
11
12
10
9
11
11
10
11
13
13
15
17
18
20
20
22
28
27

Dew Point (°C)

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

Relative Humidity (%)

33
49
65
67
71
73
74
76
76
73
77
77
80
80
80
68
57
48
40
37
33
30
36
42

Pressure (mb)

1020
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1021
1020
1019
1019
1018
1017
1017

Ozone (du)

315
316
317
316
316
316
316
315
313
313
313
313
311
310
309
307
305
303
301
300
300
299
298
297

Sunday 30

Waning Gibbous 89%

20:22

10:01

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:14, Set: 19:28, Transit: 12:50. Moon - Rise: 20:22, Set: 10:01. Civil Dark: 19:57 - 05:45. Nautical Dark: 20:32 - 05:10. Astro Dark: 21:10 - 04:32

Total Clouds (% Sky Obscured)

89
93
97
88
83
76
83
91
97
98
99
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

1
4
3
15
27
40
44
47
49
44
38
32
41
51
43
43
39
36
29
36
45
59
72
86

Medium Clouds (% Sky Obscured)

55
65
81
77
73
67
58
49
41
57
72
86
90
93
93
95
97
100
97
92
88
80
71
67

High Clouds (% Sky Obscured)

67
81
94
79
65
55
64
69
74
82
92
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
6
5
5
4
6
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
Very Light Rain
None
None

Precipitation Probability (%)

0
0
0
0
1
0
2
2
2
10
13
14
26
33
38
63
76
84
77
69
58
58
56
52

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

8
6
5
4
3
3
2
3
3
3
3
3
2
2
2
2
2
2
2
2
3
4
3
3

Chance of Frost

Temperature (°C)

28
25
23
22
21
21
20
20
19
19
19
19
19
19
19
19
20
20
21
22
23
24
23
24

Feels Like (°C)

26
26
26
26
19
20
20
20
20
21
18
19
19
19
20
20
21
21
22
22
23
23
27
27

Dew Point (°C)

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

Relative Humidity (%)

49
56
64
74
75
75
76
78
81
84
84
85
85
88
92
93
95
96
95
92
89
85
88
91

Pressure (mb)

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

Ozone (du)

296
296
296
296
296
297
297
296
294
293
292
290
289
288
288
287
287
287
287
287
286
286
285
285

Monday 31

Waning Gibbous 81%

20:45

11:15

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:15, Set: 19:26, Transit: 12:50. Moon - Rise: 20:45, Set: 11:15. Civil Dark: 19:55 - 05:46. Nautical Dark: 20:30 - 05:11. Astro Dark: 21:07 - 04:34

Total Clouds (% Sky Obscured)

100
100
100
97
95
93
95
97
99
99
99
99
99
98
97
94
93
92
81
65
52

Low Clouds (% Sky Obscured)

66
48
52
74
60
44
31
19
7
25
44
62
45
30
17
24
24
25
19
14
8

Medium Clouds (% Sky Obscured)

68
78
83
83
85
82
86
89
90
82
74
71
68
65
59
44
29
13
16
19
22

High Clouds (% Sky Obscured)

99
98
98
88
79
71
76
83
90
89
90
88
85
81
74
77
81
85
67
50
32

ISS Passover

Visibility (miles)

9
9
8
7
8
9
9
9
9
9
9
9
9
9
8
8
8
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

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

Precipitation Probability (%)

65
72
71
61
52
43
41
44
46
57
60
70
81
88
92
77
60
39
47
48
35

Precipitation Amount (mm)

0.2
0.3
0.2
0
0
0
0
0
0
0
0
0.3
0.4
0.6
0.7
0.4
0.2
0
0
0
0

Wind Speed/Direction (mph)

3
2
1
2
2
2
2
2
2
3
2
2
2
3
3
4
5
7
8
9
9

Chance of Frost

Temperature (°C)

24
23
23
22
21
21
20
20
20
20
20
20
19
20
20
21
23
25
27
27
28

Feels Like (°C)

28
27
26
25
23
23
23
23
23
22
22
22
21
22
22
22
23
24
25
26
26

Dew Point (°C)

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

Relative Humidity (%)

94
95
97
98
98
96
98
98
96
96
96
96
96
96
96
96
81
68
57
53
49

Pressure (mb)

1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1012
1012
1012

Ozone (du)

285
284
284
284
284
285
285
285
286
286
287
288
288
290
291
292
295
297
300
301
302

Forecast for Chester, Windsor, United States of America (43.26,-72.60)

Generated: 25/08/26 17:36:52. Forecast: 25/08/26 to 31/08/26. Timezone: UTC-4.00