Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 27

Waxing Gibbous 97%

20:17

03:12

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 OK
18 OK
19 OK
20 OK
21 OK
22 Bad
23 OK
00 OK
01 OK

Sun - Rise: 05:56, Set: 21:04, Transit: 13:30. Moon - Rise: 20:17, Set: 03:12. Civil Dark: 21:41 - 05:20. Nautical Dark: 22:28 - 04:33. Astro Dark: 23:27 - 03:34

Total Clouds (% Sky Obscured)

81
70
71
96
93
70
92
87
57
80
74
65
66
69
68
29
21
36
29
47
57
41
42
31

Low Clouds (% Sky Obscured)

37
62
56
65
70
61
58
72
54
70
62
55
48
49
46
29
21
33
29
44
44
41
42
31

Medium Clouds (% Sky Obscured)

65
70
48
58
59
31
52
35
19
35
0
4
27
17
22
14
12
28
26
31
49
33
27
0

High 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

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
4
0
17
21
10
18
18
17
24
26
15
5
11
1
0
0
1
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)

13
14
14
10
10
11
10
11
12
10
10
10
10
9
8
9
8
6
6
5
5
4
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

14
15
11
12
11
12
12
14
15
11
14
14
11
10
14
14
11
11
13
14
14
13
13
13

Relative Humidity (%)

66
73
65
70
68
71
72
78
76
63
67
67
51
47
55
53
46
48
61
68
71
72
76
79

Pressure (mb)

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

Ozone (du)

333
333
333
333
331
330
329
330
329
329
329
328
327
326
326
327
327
327
326
326
325
325
324
323

Tuesday 28

Waxing Gibbous 100%

20:49

04:15

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

Sun - Rise: 05:58, Set: 21:03, Transit: 13:30. Moon - Rise: 20:49, Set: 04:15. Civil Dark: 21:39 - 05:21. Nautical Dark: 22:26 - 04:34. Astro Dark: 23:24 - 03:36

Total Clouds (% Sky Obscured)

20
16
11
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
21
23
23
44
49

Low Clouds (% Sky Obscured)

20
16
10
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
20
21
20
38
42

High 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

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)

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

Chance of Frost

Temperature (°C)

16
15
15
14
14
14
17
19
21
22
23
24
25
26
26
27
26
25
24
21
19
20
20
19

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
85
86
86
86
82
72
62
55
47
41
36
33
31
30
30
31
40
54
60
62
67
69
72

Pressure (mb)

1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1020
1020
1019
1019
1019
1019
1019
1019
1020
1020
1020
1020

Ozone (du)

324
325
325
325
326
326
325
324
323
323
322
322
322
322
322
323
323
324
323
322
322
320
319
320

Wednesday 29

Full Moon 100%

21:14

05:24

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

Sun - Rise: 05:59, Set: 21:02, Transit: 13:30. Moon - Rise: 21:14, Set: 05:24. Civil Dark: 21:38 - 05:23. Nautical Dark: 22:25 - 04:36. Astro Dark: 23:22 - 03:39

Total Clouds (% Sky Obscured)

51
53
53
43
31
21
20
26
42
18
9
0
4
22
12
0
33
67
65
38
35
24
13
1

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
5
0
0
0
2
3
0
0
2
50
45
0
0
0
0
0

Medium Clouds (% Sky Obscured)

51
53
53
43
31
21
20
26
35
18
9
0
0
21
12
0
33
62
63
38
35
24
13
1

High Clouds (% Sky Obscured)

0
0
0
15
0
0
0
0
0
0
0
0
0
0
0
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
3
10
4
2
1
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
4
25
20
7
4
1
2
1
1
2
3
4
4
3
3
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
5
4
5
5
4
3
2
3
3
5
5
6
6
7
7
6
6
5
5
5
5
6
6

Chance of Frost

Temperature (°C)

20
19
20
20
19
19
20
23
25
26
27
29
30
30
31
31
31
29
27
25
23
21
20
20

Feels Like (°C)

22
22
22
22
21
22
23
26
28
30
31
31
31
31
31
31
31
33
28
25
26
23
21
21

Dew Point (°C)

15
16
17
16
16
16
14
14
15
14
12
11
10
9
8
7
8
12
14
14
16
14
11
9

Relative Humidity (%)

76
78
81
81
84
81
68
59
53
47
39
34
29
27
24
22
24
35
44
51
62
61
54
51

Pressure (mb)

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

Ozone (du)

321
321
320
317
315
314
315
315
313
312
312
312
313
313
313
312
311
311
310
311
312
312
312
313

Thursday 30

Waning Gibbous 99%

21:35

06:35

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

Sun - Rise: 06:00, Set: 21:00, Transit: 13:30. Moon - Rise: 21:35, Set: 06:35. Civil Dark: 21:36 - 05:24. Nautical Dark: 22:23 - 04:38. Astro Dark: 23:19 - 03:41

Total Clouds (% Sky Obscured)

6
10
13
24
33
40
30
23
12
8
5
0
13
27
42
52
63
98
89
68
62
49
71
28

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)

1
0
0
0
2
0
0
0
0
0
0
0
4
8
13
11
14
62
50
23
16
15
16
19

High Clouds (% Sky Obscured)

6
10
13
24
33
40
30
23
12
8
5
0
12
23
34
49
63
95
72
68
62
47
49
2

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

Chance of Frost

Temperature (°C)

18
18
18
17
18
19
19
23
26
29
30
31
32
33
33
33
32
29
28
26
24
23
23
22

Feels Like (°C)

19
20
19
20
20
20
21
26
29
31
33
33
33
34
33
34
32
31
28
27
25
24
24
22

Dew Point (°C)

8
9
8
9
10
10
9
10
10
10
8
5
2
2
2
3
5
8
12
13
12
12
13
12

Relative Humidity (%)

50
53
52
56
56
58
53
43
36
30
24
19
14
14
13
14
18
26
37
45
45
50
53
51

Pressure (mb)

1018
1018
1018
1018
1019
1019
1019
1019
1018
1018
1017
1017
1016
1016
1015
1015
1015
1015
1015
1015
1016
1017
1017
1016

Ozone (du)

312
311
312
312
313
315
315
314
309
306
305
305
304
304
303
304
305
305
304
306
305
304
305
303

Friday 31

Waning Gibbous 98%

21:52

07:46

02 OK
03 OK
04 Good
05 OK
06 OK
07 Bad
08 Bad
09 Bad
10 OK
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: 06:01, Set: 20:59, Transit: 13:30. Moon - Rise: 21:52, Set: 07:46. Civil Dark: 21:35 - 05:26. Nautical Dark: 22:21 - 04:40. Astro Dark: 23:17 - 03:44

Total Clouds (% Sky Obscured)

26
21
16
27
41
50
50
50
45
45
45
75
76
76
75
73
73
73
56
41
35
53
73
83

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
4
10
16

Medium Clouds (% Sky Obscured)

18
17
16
13
13
12
18
23
27
33
42
45
43
40
38
44
49
60
56
41
35
53
64
64

High Clouds (% Sky Obscured)

2
2
1
22
40
50
50
50
45
45
45
75
76
76
73
67
59
49
40
27
20
41
58
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
8
8
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
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

1
0
0
0
0
0
0
2
3
6
7
5
15
15
14
33
40
43
44
43
41
78
95
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
0.4
0.7
1.1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

23
22
21
20
22
25
27
29
31
30
30
29
28
29
29
31
30
31
30
24
26
29
27
23

Dew Point (°C)

12
11
9
8
10
14
14
13
12
11
10
7
5
7
8
10
11
13
14
16
18
20
20
18

Relative Humidity (%)

51
51
47
48
50
55
51
44
38
34
30
26
23
25
27
30
37
45
55
64
74
85
88
89

Pressure (mb)

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

Ozone (du)

303
302
301
300
300
299
299
299
299
299
298
297
296
296
296
296
296
296
296
296
297
297
297
297

Saturday 1

Waning Gibbous 94%

22:08

08:57

02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 OK
10 OK
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: 06:03, Set: 20:58, Transit: 13:30. Moon - Rise: 22:08, Set: 08:57. Civil Dark: 21:33 - 05:27. Nautical Dark: 22:19 - 04:41. Astro Dark: 23:14 - 03:46

Total Clouds (% Sky Obscured)

72
61
49
46
38
32
31
33
35
43
58
67
79
81
84
86
84
74
59
53
43
46
53
63

Low Clouds (% Sky Obscured)

12
6
1
6
11
16
20
24
28
14
6
4
5
11
38
27
14
0
0
0
0
0
0
1

Medium Clouds (% Sky Obscured)

57
50
44
33
21
8
8
7
4
11
17
21
30
36
44
42
43
42
35
24
10
15
19
24

High Clouds (% Sky Obscured)

55
34
13
12
11
11
7
4
0
22
50
67
79
81
84
86
84
74
59
53
43
40
35
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

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
Very Light Rain

Precipitation Probability (%)

95
77
37
39
36
24
26
21
5
13
21
23
24
25
21
24
24
29
37
39
32
36
40
47

Precipitation Amount (mm)

0.7
0.4
0
0
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)

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

Chance of Frost

Temperature (°C)

18
17
17
17
18
18
19
21
23
24
26
27
28
28
28
28
26
25
23
23
23
22
21
20

Feels Like (°C)

21
19
19
19
20
20
19
23
23
23
24
25
26
33
32
30
29
30
29
26
28
29
28
27

Dew Point (°C)

16
16
16
15
16
16
16
16
15
13
13
11
11
10
10
9
9
11
11
14
16
17
18
17

Relative Humidity (%)

90
92
92
92
89
88
86
73
61
51
45
38
34
32
31
30
34
40
47
55
65
76
81
86

Pressure (mb)

1018
1018
1018
1018
1019
1019
1019
1019
1019
1018
1018
1017
1017
1016
1016
1015
1015
1015
1015
1016
1016
1017
1017
1017

Ozone (du)

297
298
299
300
302
304
306
306
306
306
305
304
304
303
303
302
303
303
304
303
302
302
300
299

Sunday 2

Waning Gibbous 88%

22:24

10:08

Sun - Rise: 06:04, Set: 20:56, Transit: 13:30. Moon - Rise: 22:24, Set: 10:08. Civil Dark: 21:32 - 05:28. Nautical Dark: 22:17 - 04:43. Astro Dark: 23:12 - 03:49

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: 27/07/26 02:21:02. Forecast: 27/07/26 to 02/08/26. Timezone: UTC+2.00