Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 24

Waxing Gibbous 90%

18:50

03:10

06 OK
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: 06:33, Set: 20:19, Transit: 13:26. Moon - Rise: 18:50, Set: 03:10. Civil Dark: 20:52 - 06:00. Nautical Dark: 21:32 - 05:22. Astro Dark: 22:15 - 04:39

Total Clouds (% Sky Obscured)

33
48
60
72
82
82
96
96
79
73
70
80
99
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
0
0
3
4
5
6
12
14

Medium Clouds (% Sky Obscured)

33
36
39
29
27
42
90
83
65
57
35
31
53
85
82
22
47
56
75
84
84
96
97
100

High Clouds (% Sky Obscured)

33
48
60
72
80
80
57
84
58
12
60
70
59
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
9
9
9
9
9
8
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
16
4
2

Precipitation Type

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

Precipitation Probability (%)

0
0
0
0
1
6
8
4
4
3
11
7
11
22
3
2
2
19
30
22
48
42
62
95

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
0.3
3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

10
10
13
16
18
20
20
22
22
24
24
24
23
22
21
20
19
18
16
15
14
15
14
14

Feels Like (°C)

10
9
12
15
18
19
20
21
22
23
24
23
22
21
21
19
19
19
16
15
14
15
14
13

Dew Point (°C)

9
9
10
12
13
13
13
14
14
14
14
14
15
16
18
18
17
16
15
14
13
14
14
13

Relative Humidity (%)

90
91
84
77
71
67
64
63
60
56
52
55
62
68
84
88
91
92
92
93
93
96
98
96

Pressure (mb)

1020
1020
1020
1020
1020
1019
1018
1018
1017
1016
1015
1014
1014
1013
1013
1013
1013
1012
1012
1012
1013
1013
1013
1013

Ozone (du)

303
303
303
304
302
301
301
302
302
302
302
302
303
304
304
306
307
304
302
305
307
308
309
310

Tuesday 25

Waxing Gibbous 95%

19:18

04:20

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

Sun - Rise: 06:34, Set: 20:18, Transit: 13:26. Moon - Rise: 19:18, Set: 04:20. Civil Dark: 20:50 - 06:02. Nautical Dark: 21:30 - 05:24. Astro Dark: 22:13 - 04:41

Total Clouds (% Sky Obscured)

100
100
100
100
97
86
78
65
20
33
54
56
99
63
63
100
81
100
100
82
79
100
100
100

Low Clouds (% Sky Obscured)

18
74
23
47
36
35
6
13
5
18
17
8
6
18
4
9
3
7
3
14
33
36
80
34

Medium Clouds (% Sky Obscured)

100
100
73
85
54
4
3
0
0
6
3
4
60
21
46
46
73
71
48
79
42
72
73
90

High Clouds (% Sky Obscured)

100
100
100
94
65
34
40
21
1
14
54
56
70
55
63
100
55
100
100
23
67
100
100
89

ISS Passover

Visibility (miles)

9
9
9
8
9
8
3
9
9
9
9
9
9
4
9
9
9
9
5
9
9
9
4
9

Fog (%)

2
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1

Precipitation Type

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

Precipitation Probability (%)

95
95
95
83
58
54
45
30
18
17
19
23
74
47
18
15
14
62
22
1
6
57
38
20

Precipitation Amount (mm)

3
5.1
2
0.7
0.4
0.4
0.3
0
0
0
0
0
0.4
0
0
0
0
0.5
0
0
0
0.5
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
13
14
15
17
19
22
22
24
26
26
26
25
24
22
20
17
16
16
16
17
16
16
15

Dew Point (°C)

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

Relative Humidity (%)

95
95
95
95
90
83
81
75
60
53
51
50
57
76
84
89
89
86
93
93
92
93
96
95

Pressure (mb)

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

Ozone (du)

312
314
314
315
317
320
322
324
325
326
322
317
315
314
312
309
308
307
306
305
304
303
302
303

Wednesday 26

Waxing Gibbous 98%

19:40

05:32

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

Sun - Rise: 06:35, Set: 20:16, Transit: 13:26. Moon - Rise: 19:40, Set: 05:32. Civil Dark: 20:48 - 06:03. Nautical Dark: 21:27 - 05:25. Astro Dark: 22:10 - 04:43

Total Clouds (% Sky Obscured)

93
84
60
86
87
84
76
82
90
83
54
100
100
50
55
28
43
54
57
100
98
84
81
89

Low Clouds (% Sky Obscured)

9
8
3
6
4
4
3
2
2
4
3
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

77
71
46
82
79
44
7
16
11
16
5
4
2
0
11
24
16
14
0
2
5
8
11
53

High Clouds (% Sky Obscured)

41
30
9
4
56
45
46
43
71
54
54
100
100
50
55
0
43
52
55
100
95
78
73
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 (%)

2
4
7
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
4
1
15
4
3
3
2
5
10
4
0
0
1
14
0
0
0
0
0
0
1
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
5
4
3
2
3
3
3
3
3
3
4
5
5
4
4
4
5
5
5
5
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
16
18
22
24
24
25
26
27
27
27
29
27
26
24
22
21
21
20
19
17
17
17
17

Dew Point (°C)

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

Relative Humidity (%)

93
90
90
85
80
72
61
55
51
51
51
52
63
70
72
78
82
83
82
79
81
81
82
85

Pressure (mb)

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

Ozone (du)

303
301
301
300
301
302
302
303
302
303
301
301
301
300
301
302
301
300
300
299
299
299
299
300

Thursday 27

Waxing Gibbous 100%

19:59

No Set

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: 06:37, Set: 20:14, Transit: 13:25. Moon - Rise: 19:59, Set: No Set. Civil Dark: 20:46 - 06:05. Nautical Dark: 21:25 - 05:27. Astro Dark: 22:08 - 04:45

Total Clouds (% Sky Obscured)

98
95
90
88
100
60
60
83
92
100
100
100
100
100
95
90
85
90
95
100
81
62
100
86

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
11
16
34

Medium Clouds (% Sky Obscured)

52
30
25
27
21
23
25
19
26
28
27
31
31
39
32
30
28
29
30
33
50
46
51
49

High Clouds (% Sky Obscured)

95
92
90
88
100
60
60
83
90
100
100
100
100
100
89
79
69
81
91
100
73
51
100
75

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
Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
2
3
2
5
5
3
4
3
0
1
3
3
4
4
1
4
11
12
43
65
51
56

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.2
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
17
19
21
23
25
28
28
28
28
27
28
28
25
24
22
21
19
19
19
18
19
21
18

Dew Point (°C)

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

Relative Humidity (%)

83
83
79
70
65
60
55
53
53
54
55
55
65
71
74
75
76
71
73
77
78
81
82
85

Pressure (mb)

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

Ozone (du)

299
299
299
299
298
298
298
297
296
295
294
294
293
293
293
292
292
292
290
290
290
289
290
291

Friday 28

Full Moon 99%

20:15

06:44

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: 06:38, Set: 20:12, Transit: 13:25. Moon - Rise: 20:15, Set: 06:44. Civil Dark: 20:44 - 06:06. Nautical Dark: 21:23 - 05:29. Astro Dark: 22:05 - 04:47

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
94

Low Clouds (% Sky Obscured)

70
70
29
82
94
95
98
99
99
99
98
97
93
94
68
73
86
95
97
97
100
100
100
73

Medium Clouds (% Sky Obscured)

42
36
33
67
23
77
84
90
57
97
100
100
100
100
95
97
100
100
100
100
100
100
100
81

High Clouds (% Sky Obscured)

99
100
100
100
77
73
72
90
100
100
100
100
100
100
100
100
100
100
100
100
98
97
95
84

ISS Passover

Visibility (miles)

9
9
9
2
3
2
3
9
9
9
9
9
9
9
1
2
2
3
3
2
2
4
7
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Moderate Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

52
56
95
95
95
95
83
33
49
71
94
95
95
95
95
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0.6
0.8
1.9
0.8
0.6
0
0
0.3
0.6
1.1
0.8
4
2.8
3.1
3.4
2.3
1.6
1.4
1.5
1.7
1.6
0.9

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
92
90
90
93
95
96
96
95
92
90
92
93
93
98
96
96
96
95
95
95
95
95
93

Pressure (mb)

1012
1012
1012
1013
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1017
1017
1017
1017

Ozone (du)

291
290
290
289
291
293
294
296
296
297
299
299
300
303
304
308
313
317
319
322
324
325
326
326

Saturday 29

Waning Gibbous 96%

20:31

07:56

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

Sun - Rise: 06:39, Set: 20:10, Transit: 13:25. Moon - Rise: 20:31, Set: 07:56. Civil Dark: 20:42 - 06:07. Nautical Dark: 21:21 - 05:30. Astro Dark: 22:03 - 04:48

Total Clouds (% Sky Obscured)

86
75
74
75
73
60
48
38
32
29
28
23
17
11
27
45
63
66
68
65
77
90
100
99

Low Clouds (% Sky Obscured)

49
28
33
34
36
26
21
15
16
20
22
17
12
8
26
45
63
52
36
21
14
7
0
1

Medium Clouds (% Sky Obscured)

62
43
39
35
33
31
26
22
15
8
1
1
0
0
0
1
1
19
36
54
58
66
65
60

High Clouds (% Sky Obscured)

72
55
35
14
7
3
3
1
1
2
3
3
3
3
11
22
32
37
47
48
58
64
73
79

ISS Passover

Visibility (miles)

9
9
9
9
8
8
7
7
7
8
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
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
74
69
63
62
59
52
45
46
41
28
31
28
25
23
17
0
1
3
0
2
3
0
0

Precipitation Amount (mm)

0.5
0.3
0.4
0.3
0.3
0.3
0.2
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
7
8
9
10
11
10
9
8
7
5
4
4
4
6
6
6
6
6
6
7

Chance of Frost

Temperature (°C)

14
15
14
15
16
16
17
17
18
19
19
19
19
18
17
15
14
13
12
12
11
11
10
10

Feels Like (°C)

13
13
12
13
13
14
13
14
14
20
19
18
19
20
21
14
14
14
14
14
13
11
10
10

Dew Point (°C)

13
13
13
13
13
13
11
11
10
11
11
12
12
13
14
12
11
10
9
10
9
9
8
8

Relative Humidity (%)

93
92
90
87
82
78
71
65
59
60
60
60
66
74
82
80
79
78
80
84
86
85
84
84

Pressure (mb)

1017
1018
1018
1018
1019
1019
1019
1019
1019
1019
1018
1018
1019
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

328
330
332
332
331
330
326
322
318
314
310
306
302
299
295
293
292
291
291
290
290
289
288
286

Sunday 30

Waning Gibbous 91%

20:47

09:09

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: 06:41, Set: 20:08, Transit: 13:24. Moon - Rise: 20:47, Set: 09:09. Civil Dark: 20:40 - 06:09. Nautical Dark: 21:19 - 05:32. Astro Dark: 22:00 - 04:50

Total Clouds (% Sky Obscured)

99
98
97
96
95
84
72
61
60
63
64
73
83
93
90
86
82
81
80
77

Low Clouds (% Sky Obscured)

3
3
2
2
2
4
7
9
11
12
14
37
58
80
64
52
41
31
21
12

Medium Clouds (% Sky Obscured)

61
61
67
66
69
63
53
41
47
54
61
66
71
75
66
59
52
45
38
31

High Clouds (% Sky Obscured)

82
86
73
55
37
37
37
37
35
23
11
23
34
46
54
65
79
79
77
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

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
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
1
2
2
5
4
3
6
5
2
3
3
1

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
10
11
13
14
15
16
17
18
24
22
22
23
24
25
17
16
15
16
17

Dew Point (°C)

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

Relative Humidity (%)

83
81
81
71
63
55
53
51
47
49
50
51
58
66
76
74
74
73
75
79

Pressure (mb)

1020
1020
1020
1020
1019
1019
1019
1018
1018
1017
1017
1016
1017
1017
1017
1017
1017
1018
1017
1017

Ozone (du)

287
288
289
290
291
291
291
291
291
291
292
292
292
291
290
290
290
290
291
292

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

Generated: 24/08/26 06:02:55. Forecast: 24/08/26 to 30/08/26. Timezone: UTC+2.00