Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 3

Waning Gibbous 81%

22:40

11:20

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

Sun - Rise: 06:05, Set: 20:55, Transit: 13:30. Moon - Rise: 22:40, Set: 11:20. Civil Dark: 21:30 - 05:30. Nautical Dark: 22:15 - 04:45. Astro Dark: 23:09 - 03:51

Total Clouds (% Sky Obscured)

0
18
27
44
63
80
65
40
20
2
2
10
16
66
66
70
100
70
87
100
99
100
97
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
18
27
40
63
80
65
40
20
2
1
10
7
19
54
52
65
30
32
32
42
47
43
35

High Clouds (% Sky Obscured)

0
2
2
16
0
0
0
0
0
0
0
0
10
65
65
65
66
66
67
100
96
100
93
100

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
9
8
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
1
4
5
4
2
14
17
15
19
0
13
25
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
7
6
4
4
4
4
3
2
3
3
4
4
4
4
4
4
4
1
4
3
3
4
5

Chance of Frost

Temperature (°C)

20
19
19
19
19
19
21
23
25
26
29
30
31
31
30
29
28
28
28
25
24
23
22
22

Feels Like (°C)

23
23
23
22
22
22
22
25
27
29
32
32
33
32
31
30
29
30
28
26
24
23
23
23

Dew Point (°C)

18
17
17
17
16
16
16
15
14
12
12
11
10
8
6
5
6
15
18
19
19
19
19
20

Relative Humidity (%)

84
85
86
86
85
81
73
61
50
41
36
30
26
23
22
21
25
44
57
69
74
79
84
89

Pressure (mb)

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

Ozone (du)

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

Tuesday 4

Waning Gibbous 71%

22:59

12:35

02 Bad
03 Bad
04 Bad
05 OK
06 Good
07 OK
08 Bad
09 Bad
10 Bad
11 OK
12 Good
13 Good
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: 06:06, Set: 20:53, Transit: 13:30. Moon - Rise: 22:59, Set: 12:35. Civil Dark: 21:29 - 05:31. Nautical Dark: 22:13 - 04:46. Astro Dark: 23:07 - 03:53

Total Clouds (% Sky Obscured)

93
94
51
9
8
23
49
70
67
42
12
2
65
71
65
66
55
66
100
100
100
96
100
100

Low Clouds (% Sky Obscured)

0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
16
60
61
5
19
10
13

Medium Clouds (% Sky Obscured)

15
47
33
4
8
23
34
15
6
40
6
2
2
27
5
0
8
23
35
70
44
57
10
13

High Clouds (% Sky Obscured)

68
81
20
5
0
0
31
70
63
8
7
0
63
70
65
66
51
65
71
100
100
88
100
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
7
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
Light Rain
Light Rain
None
None
Light Rain
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
1
4
3
6
32
37
11
17
41
95
95
65
49
71
6

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1.7
0
0
0.8
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
21
21
19
19
19
22
25
27
28
29
30
30
31
30
29
28
27
23
24
22
21
20
19

Feels Like (°C)

22
23
22
21
21
21
26
29
30
30
30
32
33
33
31
30
30
30
25
23
21
22
21
20

Dew Point (°C)

19
19
19
18
17
17
19
21
18
16
15
13
12
11
10
9
10
12
11
23
21
20
19
18

Relative Humidity (%)

86
86
89
89
89
88
84
75
59
48
42
36
32
30
28
29
31
38
45
92
94
95
93
91

Pressure (mb)

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

Ozone (du)

301
301
302
303
304
304
304
305
305
304
304
305
306
306
305
305
304
303
302
299
301
303
303
304

Wednesday 5

Waning Gibbous 60%

23:22

13:54

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

Sun - Rise: 06:08, Set: 20:52, Transit: 13:30. Moon - Rise: 23:22, Set: 13:54. Civil Dark: 21:27 - 05:33. Nautical Dark: 22:11 - 04:48. Astro Dark: 23:04 - 03:56

Total Clouds (% Sky Obscured)

100
99
95
40
36
27
29
24
49
67
65
56
70
67
72
13
44
100
77
43
37
49
28
36

Low Clouds (% Sky Obscured)

18
21
17
14
12
8
7
8
17
17
16
15
16
17
0
7
44
65
53
16
25
37
25
36

Medium Clouds (% Sky Obscured)

11
2
2
9
9
12
21
19
22
26
10
12
25
50
1
1
24
25
4
6
23
37
24
33

High Clouds (% Sky Obscured)

100
99
95
4
1
1
1
0
0
65
65
41
65
65
65
0
0
66
51
31
31
11
1
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
Very Light Rain
None
None
None
Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
2
0
0
0
0
0
3
13
52
44
47
46
95
51
36
48
51
63
57
22
6
5
2

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
0
0
0
0.8
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
4
3
3
3
3
2
1
2
3
4
4
4
4
6
4
8
6
7
5
5
5
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

17
17
16
16
16
16
18
18
15
13
9
8
8
7
5
4
3
13
20
19
19
18
16
17

Relative Humidity (%)

89
89
89
89
90
90
84
74
58
47
39
34
32
30
28
28
29
54
81
84
92
89
86
90

Pressure (mb)

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

Ozone (du)

304
304
304
305
306
307
308
308
308
307
307
309
307
305
304
304
302
301
300
301
301
303
304
305

Thursday 6

Third Quarter 49%

23:52

15:15

02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 OK
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: 06:09, Set: 20:50, Transit: 13:30. Moon - Rise: 23:52, Set: 15:15. Civil Dark: 21:25 - 05:34. Nautical Dark: 22:09 - 04:50. Astro Dark: 23:01 - 03:58

Total Clouds (% Sky Obscured)

40
40
39
39
34
33
38
47
51
78
86
90
89
95
100
100
99
99
87
75
63
75
88
100

Low Clouds (% Sky Obscured)

39
40
33
30
20
17
18
24
38
40
45
42
47
50
64
56
15
2
9
3
0
26
43
57

Medium Clouds (% Sky Obscured)

36
36
39
39
34
33
38
36
36
36
55
83
73
78
84
52
94
99
87
75
40
75
80
71

High Clouds (% Sky Obscured)

0
0
0
0
0
0
2
3
4
21
21
26
32
65
78
59
50
30
30
30
30
53
77
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
2
5
9
8
2
1
2
8

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
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

9
10
4
21
15
4
23
22
16
26
29
21
43
54
95
95
95
76
82
95
95
95
92
53

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.9
0.7
0.3
0.4
0.9
1.7
1.9
0.9
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

17
17
16
16
17
17
16
15
13
12
11
10
10
8
8
16
21
20
20
19
19
18
17
16

Relative Humidity (%)

90
90
89
89
90
89
80
70
60
53
48
44
42
40
39
66
88
91
92
93
95
96
96
96

Pressure (mb)

1020
1019
1019
1019
1019
1020
1020
1020
1020
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019

Ozone (du)

303
300
299
300
301
300
301
301
301
301
301
301
301
301
300
299
300
299
300
299
299
298
298
299

Friday 7

Waning Crescent 37%

00:34

16:36

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
22 Bad
23 Bad
00 Bad
01 OK

Sun - Rise: 06:10, Set: 20:49, Transit: 13:30. Moon - Rise: 00:34, Set: 16:36. Civil Dark: 21:23 - 05:36. Nautical Dark: 22:08 - 04:52. Astro Dark: 22:59 - 04:00

Total Clouds (% Sky Obscured)

97
59
53
49
44
42
58
69
69
47
84
44
58
71
82
75
70
64
74
81
81
66
53
46

Low Clouds (% Sky Obscured)

47
31
22
21
19
19
40
56
60
37
29
39
41
40
30
4
2
0
10
21
31
23
32
23

Medium Clouds (% Sky Obscured)

57
47
53
49
44
41
36
29
23
15
53
3
2
1
0
0
0
0
7
15
22
27
29
28

High Clouds (% Sky Obscured)

77
28
9
6
3
0
2
2
0
1
1
2
20
34
40
20
7
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
8
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
0
0
0

Precipitation Type

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

Precipitation Probability (%)

58
66
81
49
31
22
12
6
2
7
38
45
50
48
47
37
34
27
28
23
26
27
20
3

Precipitation Amount (mm)

0.3
0.4
0.8
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
96
96
96
96
96
95
90
79
65
56
53
51
57
63
70
71
71
72
74
78
81
83
87

Pressure (mb)

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

Ozone (du)

301
304
306
304
304
303
304
306
309
309
309
307
305
303
302
300
299
299
298
300
301
302
302
302

Saturday 8

Waning Crescent 26%

01:30

17:51

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

Sun - Rise: 06:12, Set: 20:47, Transit: 13:29. Moon - Rise: 01:30, Set: 17:51. Civil Dark: 21:22 - 05:37. Nautical Dark: 22:06 - 04:53. Astro Dark: 22:56 - 04:03

Total Clouds (% Sky Obscured)

45
48
54
51
44
46
40
38
35
25
18
7
15
23
31
23
13
5
8
9
12
32
51
72

Low Clouds (% Sky Obscured)

20
13
9
6
3
0
0
0
0
0
0
0
1
4
17
12
6
0
0
0
0
1
4
20

Medium Clouds (% Sky Obscured)

28
24
23
18
10
9
12
20
35
22
14
4
9
11
16
10
6
1
1
1
1
18
36
56

High Clouds (% Sky Obscured)

10
21
32
34
38
46
31
17
1
0
0
0
1
3
4
3
1
0
1
3
5
12
22
40

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
Very Light Rain

Precipitation Probability (%)

4
4
1
2
2
1
8
8
4
7
8
2
5
6
3
11
10
8
8
9
5
34
46
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
0
0.3

Wind Speed/Direction (mph)

3
3
3
3
3
2
2
2
2
3
4
4
4
4
3
3
3
4
3
3
3
4
4
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

19
14
15
16
16
15
16
20
21
21
22
23
23
29
28
26
26
26
26
19
20
21
20
20

Dew Point (°C)

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

Relative Humidity (%)

90
90
90
92
87
86
82
72
61
53
46
41
35
33
32
30
36
44
53
58
64
72
76
84

Pressure (mb)

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

Ozone (du)

302
302
302
302
301
301
300
300
301
301
301
301
301
300
299
298
298
297
297
297
298
299
301
304

Sunday 9

Waning Crescent 16%

No Rise

18:53

Sun - Rise: 06:13, Set: 20:46, Transit: 13:29. Moon - Rise: No Rise, Set: 18:53. Civil Dark: 21:20 - 05:39. Nautical Dark: 22:03 - 04:55. Astro Dark: 22:54 - 04:05

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 03/08/26 02:38:22. Forecast: 03/08/26 to 09/08/26. Timezone: UTC+2.00