Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 17

Waxing Crescent 27%

12:02

22:10

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
05 Bad

Sun - Rise: 06:23, Set: 20:32, Transit: 13:28. Moon - Rise: 12:02, Set: 22:10. Civil Dark: 21:05 - 05:52. Nautical Dark: 21:47 - 05:10. Astro Dark: 22:33 - 04:25

Total Clouds (% Sky Obscured)

34
53
70
100
100
100
100
100
100
90
96
57
100
100
96
74
71
80
78
88
87
67
94
88

Low Clouds (% Sky Obscured)

31
53
41
49
67
70
72
82
73
54
51
50
57
56
48
60
54
52
56
67
67
67
65
74

Medium Clouds (% Sky Obscured)

26
53
70
96
93
94
100
96
89
61
42
41
53
45
37
41
70
54
39
31
27
42
52
46

High Clouds (% Sky Obscured)

34
53
70
100
100
100
100
100
100
52
73
9
100
100
82
50
6
8
2
33
2
2
35
4

ISS Passover

Visibility (miles)

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

Fog (%)

0
1
0
0
0
0
0
0
0
0
0
0
0
34
11
66
62
2
24
2
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

60
75
95
95
95
95
95
95
95
95
95
95
95
95
95
77
56
55
39
10
9
13
6
16

Precipitation Amount (mm)

0
1.7
1.5
1.6
1.6
1
2.8
2
2.8
1.3
1.5
2.5
2
2.1
0.9
0.7
0.3
0.5
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
19
19
19
19
18
18
18
18
18
18
19
18
18
17
17
17
17
17
16
15
16
16
16

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
95
95
95
86
93
90
88
90
95
86
85
88
90
89
95
96
93
93
92
92
92
92
92

Pressure (mb)

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

Ozone (du)

314
314
315
318
321
324
328
328
329
333
331
326
323
320
319
318
316
313
312
310
309
308
308
307

Tuesday 18

Waxing Crescent 36%

13:14

22:31

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 OK
00 OK
01 Good
02 OK
03 OK
04 OK
05 OK

Sun - Rise: 06:25, Set: 20:30, Transit: 13:28. Moon - Rise: 13:14, Set: 22:31. Civil Dark: 21:04 - 05:53. Nautical Dark: 21:45 - 05:12. Astro Dark: 22:31 - 04:27

Total Clouds (% Sky Obscured)

85
67
82
92
53
90
90
93
95
74
82
81
99
95
77
54
59
48
43
6
38
40
38
34

Low Clouds (% Sky Obscured)

63
67
33
32
21
20
18
22
14
16
14
20
18
14
0
4
15
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

79
67
81
57
44
50
46
46
62
53
45
50
42
41
36
35
34
24
9
2
2
0
0
0

High Clouds (% Sky Obscured)

4
2
2
30
3
34
30
30
32
11
66
39
98
85
73
5
7
16
27
3
37
35
33
29

ISS Passover

Visibility (miles)

8
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 (%)

11
20
5
4
5
1
1
2
2
8
7
6
5
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

14
15
15
15
13
11
9
9
8
7
6
7
8
9
12
12
12
12
12
12
11
10
9
10

Relative Humidity (%)

92
92
90
83
73
59
53
51
44
38
37
37
40
48
60
66
69
70
70
71
70
70
71
73

Pressure (mb)

1016
1016
1016
1016
1016
1016
1016
1015
1015
1014
1014
1013
1013
1013
1014
1014
1015
1015
1015
1014
1014
1013
1013
1013

Ozone (du)

306
305
305
304
302
301
301
301
301
301
300
300
300
300
299
299
299
299
299
299
297
298
297
298

Wednesday 19

Waxing Crescent 46%

14:25

22:57

06 Good
07 Good
08 Good
09 Good
10 Good
11 Good
12 Good
13 Good
14 Good
15 Good
16 Good
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

Sun - Rise: 06:26, Set: 20:29, Transit: 13:27. Moon - Rise: 14:25, Set: 22:57. Civil Dark: 21:02 - 05:55. Nautical Dark: 21:43 - 05:14. Astro Dark: 22:28 - 04:29

Total Clouds (% Sky Obscured)

5
3
1
0
0
0
0
0
0
1
14
56
68
70
67
38
71
70
76
100
100
99
75
94

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
14
56
68
70
63
17
18
12
24
23
28
37
43
45

Medium Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
0
0
1
30
60
56
36
33
34
47
62
73
73
66
41
59

High Clouds (% Sky Obscured)

4
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
52
65
65
100
99
67
67
68

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
8
8
4
3
9
9
4
5
5
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
1
2
3
3
3
19
35
38
43
46
41
68
92
95
76
86
85
78

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

6
7
6
4
5
8
9
11
11
11
9
6
7
4
3
3
4
4
4
6
7
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
16
18
21
21
22
23
23
24
25
25
25
26
28
25
22
22
22
22
21
18
18
17
18

Dew Point (°C)

10
10
10
11
10
10
9
9
9
9
9
11
17
22
22
20
18
18
19
19
17
17
17
16

Relative Humidity (%)

74
74
68
56
48
43
39
37
35
34
35
39
57
77
85
91
92
93
95
96
96
96
96
96

Pressure (mb)

1013
1013
1012
1012
1011
1011
1011
1010
1010
1009
1008
1008
1008
1009
1010
1011
1011
1011
1011
1012
1012
1012
1012
1012

Ozone (du)

299
301
303
306
307
306
307
307
307
307
306
305
305
307
308
309
309
310
310
307
308
311
313
314

Thursday 20

First Quarter 56%

15:33

23:29

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
05 Bad

Sun - Rise: 06:27, Set: 20:27, Transit: 13:27. Moon - Rise: 15:33, Set: 23:29. Civil Dark: 21:00 - 05:56. Nautical Dark: 21:40 - 05:16. Astro Dark: 22:25 - 04:31

Total Clouds (% Sky Obscured)

100
100
100
65
57
54
61
74
80
100
100
100
100
100
85
100
100
100
100
100
79
99
100
100

Low Clouds (% Sky Obscured)

44
39
36
33
26
23
27
47
53
85
65
33
59
18
17
38
64
34
35
57
57
80
83
81

Medium Clouds (% Sky Obscured)

67
72
54
56
57
54
61
62
60
75
90
91
92
94
49
85
80
87
44
49
46
44
43
59

High Clouds (% Sky Obscured)

71
95
100
65
57
54
61
59
62
74
68
99
100
100
85
100
100
100
100
100
72
70
72
97

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
5
8
9
5
2
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
Light Rain
None
None
Light Rain
Light Rain
None
None
None
None
Very Light Rain
None
Very Light Rain

Precipitation Probability (%)

70
64
66
65
58
77
90
95
92
89
74
84
95
69
62
89
95
49
46
38
51
56
49
64

Precipitation Amount (mm)

0.4
0.3
0.3
0.3
0.3
0.3
0.4
0.5
0.3
0.3
0
0
2
0
0
0.5
2.4
0
0
0
0
0.2
0
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

17
16
17
16
14
11
8
8
6
6
8
9
8
17
17
17
17
17
16
16
16
16
15
14

Relative Humidity (%)

98
96
93
88
78
62
54
51
47
46
54
52
54
92
93
95
95
96
98
95
95
95
95
95

Pressure (mb)

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

Ozone (du)

314
314
314
314
313
312
311
311
310
309
309
310
309
309
310
309
309
311
311
310
310
309
309
311

Friday 21

Waxing Gibbous 66%

16:36

00:10

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 OK
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 06:29, Set: 20:25, Transit: 13:27. Moon - Rise: 16:36, Set: 00:10. Civil Dark: 20:58 - 05:57. Nautical Dark: 21:38 - 05:17. Astro Dark: 22:23 - 04:33

Total Clouds (% Sky Obscured)

100
100
100
100
84
91
100
99
91
83
77
71
63
13
44
64
83
80
81
84
86
88
91
88

Low Clouds (% Sky Obscured)

78
76
83
59
50
22
13
10
11
25
20
16
11
0
14
27
41
49
66
82
85
84
78
65

Medium Clouds (% Sky Obscured)

100
100
100
87
72
86
84
71
69
38
22
16
12
8
25
27
28
35
42
48
56
63
70
55

High Clouds (% Sky Obscured)

100
100
100
100
69
70
95
93
76
63
48
47
43
2
24
41
55
48
46
53
50
48
50
35

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

Precipitation Probability (%)

78
95
95
95
95
95
86
73
61
51
30
22
18
33
38
36
33
31
28
21
19
14
1
6

Precipitation Amount (mm)

0.5
1
1.1
1.1
1.4
0.8
0.5
0.3
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
3
3
2
3
3
4
3
3
2
3
3
2
2
3
3
3
3
3
3
3
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

14
13
12
13
11
6
2
2
3
3
3
4
5
8
10
10
10
11
10
10
10
11
11
11

Relative Humidity (%)

95
93
92
92
82
61
44
42
41
40
40
42
44
57
68
74
80
86
87
89
90
92
92
93

Pressure (mb)

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

Ozone (du)

311
312
312
312
313
312
313
312
311
310
309
308
307
306
304
305
305
306
306
307
307
307
306
306

Saturday 22

Waxing Gibbous 75%

17:30

01:02

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
05 Bad

Sun - Rise: 06:30, Set: 20:23, Transit: 13:27. Moon - Rise: 17:30, Set: 01:02. Civil Dark: 20:56 - 05:59. Nautical Dark: 21:36 - 05:19. Astro Dark: 22:20 - 04:35

Total Clouds (% Sky Obscured)

84
81
75
70
65
55
58
55
63
69
70
79
83
86
85
84
83
74
60
50
57
64
65
73

Low Clouds (% Sky Obscured)

53
36
27
24
23
15
8
0
1
2
3
19
34
43
48
56
62
43
23
2
2
3
5
20

Medium Clouds (% Sky Obscured)

42
27
28
28
34
39
39
40
45
46
52
60
68
74
76
76
75
66
57
48
55
58
65
66

High Clouds (% Sky Obscured)

26
16
26
39
53
42
29
17
23
30
39
59
74
86
64
37
12
27
39
43
44
45
50
55

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

Precipitation Probability (%)

6
1
10
11
5
23
30
32
33
34
36
56
71
84
74
65
59
48
36
22
42
49
49
48

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

3
2
2
1
1
3
2
3
3
2
1
1
1
1
2
2
2
3
3
3
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
12
13
14
15
15
15
15
14
20
18
16
19
21
23
15
16
17
17
17
18
15
15
16

Dew Point (°C)

11
11
12
11
10
9
6
5
3
2
1
0
3
5
8
8
9
9
10
10
11
11
11
11

Relative Humidity (%)

92
92
90
78
68
60
51
44
38
36
34
33
40
48
58
61
66
69
73
76
80
82
83
84

Pressure (mb)

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

Ozone (du)

306
306
306
306
306
306
305
304
303
303
304
304
304
303
303
305
307
309
308
307
306
306
305
305

Sunday 23

Waxing Gibbous 83%

18:15

02:02

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

Sun - Rise: 06:31, Set: 20:21, Transit: 13:26. Moon - Rise: 18:15, Set: 02:02. Civil Dark: 20:54 - N/A. Nautical Dark: 21:34 - 05:20. Astro Dark: 22:18 - 04:37

Total Clouds (% Sky Obscured)

79
87
73
59
49
62
75
88
88
90
92
94
96
97
98
99
100
98
95
94

Low Clouds (% Sky Obscured)

31
42
33
19
3
3
3
3
2
1
0
9
18
27
25
21
18
23
29
38

Medium Clouds (% Sky Obscured)

69
73
58
45
32
36
38
44
47
51
55
61
68
75
72
73
76
76
73
69

High Clouds (% Sky Obscured)

55
55
60
59
49
62
64
56
69
81
92
87
79
66
73
86
100
94
89
86

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
Very Light Rain

Precipitation Probability (%)

44
28
21
12
2
4
4
2
9
12
11
19
19
15
28
31
29
44
52
53

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
79
75
68
60
52
47
43
38
37
36
35
42
53
64
69
74
79
85
89

Pressure (mb)

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

Ozone (du)

305
304
304
304
304
304
303
302
301
301
300
300
299
299
299
298
298
298
298
298

Forecast for Lettenboden, Bezirk Pfäffikon, Switzerland (47.38,8.92)

Generated: 17/08/26 06:01:32. Forecast: 17/08/26 to 23/08/26. Timezone: UTC+2.00