Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 31

Waning Gibbous 83%

21:05

10:25

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

Sun - Rise: 06:43, Set: 20:06, Transit: 13:24. Moon - Rise: 21:05, Set: 10:25. Civil Dark: 20:38 - 06:12. Nautical Dark: 21:16 - 05:33. Astro Dark: 21:58 - 04:52

Total Clouds (% Sky Obscured)

27
47
63
55
75
56
55
36
54
80
59
47
49
65
77
76
51
57
71
36
26
17
21
26

Low Clouds (% Sky Obscured)

27
47
63
55
71
49
48
27
49
67
53
31
23
44
70
76
51
47
17
10
8
2
0
9

Medium Clouds (% Sky Obscured)

18
0
0
3
10
23
27
32
4
28
20
16
22
24
22
16
13
20
25
26
20
15
19
16

High Clouds (% Sky Obscured)

3
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
20
1
2
0
1
3

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
5
6
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 (%)

8
11
15
16
16
17
18
13
13
11
6
13
11
4
2
1
1
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)

9
8
12
10
10
11
9
9
9
9
9
9
8
6
7
6
6
5
4
4
5
5
5
5

Chance of Frost

Temperature (°C)

15
16
16
16
17
17
17
18
18
20
20
19
18
17
16
14
14
13
13
13
13
13
12
11

Feels Like (°C)

17
17
16
17
17
17
16
16
17
18
18
18
18
17
15
13
13
13
14
13
14
13
13
12

Dew Point (°C)

14
15
15
14
13
12
10
7
5
8
9
11
12
12
11
8
8
8
10
11
11
11
10
9

Relative Humidity (%)

93
95
90
86
78
71
61
50
42
45
50
56
64
72
70
66
67
70
80
84
87
87
89
88

Pressure (mb)

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

Ozone (du)

295
296
297
297
299
299
300
302
308
312
312
316
314
310
310
308
307
307
307
307
306
304
304
304

Tuesday 1

Waning Gibbous 74%

21:27

11:43

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

Sun - Rise: 06:45, Set: 20:04, Transit: 13:24. Moon - Rise: 21:27, Set: 11:43. Civil Dark: 20:36 - 06:13. Nautical Dark: 21:14 - 05:35. Astro Dark: 21:55 - 04:54

Total Clouds (% Sky Obscured)

30
24
23
35
31
27
69
71
11
59
91
43
3
15
38
61
59
39
50
1
2
0
49
20

Low Clouds (% Sky Obscured)

12
11
12
11
8
6
6
7
1
0
3
0
0
0
3
6
6
5
0
0
0
0
1
0

Medium Clouds (% Sky Obscured)

16
8
1
24
25
7
0
0
0
0
0
0
0
0
2
17
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

1
1
0
1
1
2
29
33
3
40
82
43
3
9
17
35
35
20
50
1
1
0
49
19

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)

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

Chance of Frost

Temperature (°C)

11
12
16
18
18
19
20
21
22
22
21
21
20
18
16
15
14
14
13
13
13
13
12
11

Feels Like (°C)

12
14
18
20
19
21
21
20
21
22
20
21
22
20
17
15
14
13
14
14
15
14
13
13

Dew Point (°C)

9
9
11
12
10
10
9
9
9
9
10
12
13
12
11
10
10
10
11
10
11
11
10
10

Relative Humidity (%)

88
84
73
67
60
55
49
46
45
44
48
59
65
69
71
73
75
78
83
84
86
87
89
90

Pressure (mb)

1023
1023
1023
1023
1023
1022
1022
1022
1021
1021
1020
1020
1020
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

303
303
303
304
304
304
304
305
305
305
304
304
304
304
303
304
305
305
307
310
313
314
313
312

Wednesday 2

Waning Gibbous 63%

21:55

13:03

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
02 OK
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 06:46, Set: 20:02, Transit: 13:23. Moon - Rise: 21:55, Set: 13:03. Civil Dark: 20:34 - 06:15. Nautical Dark: 21:12 - 05:36. Astro Dark: 21:53 - 04:56

Total Clouds (% Sky Obscured)

100
100
100
100
85
76
58
88
94
100
90
64
83
90
89
92
87
49
46
48
50
56
54
55

Low Clouds (% Sky Obscured)

0
0
1
0
0
0
0
2
1
2
5
7
63
90
89
92
87
17
8
10
9
9
11
11

Medium Clouds (% Sky Obscured)

0
20
40
45
80
75
43
83
27
59
85
48
74
58
29
29
30
23
30
30
28
28
28
24

High Clouds (% Sky Obscured)

100
100
95
100
38
37
12
13
62
100
54
18
7
8
12
23
3
5
3
0
2
0
1
3

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

Chance of Frost

Temperature (°C)

11
13
15
17
18
18
19
20
20
20
20
19
18
17
15
15
14
13
14
14
13
14
14
14

Feels Like (°C)

13
13
15
17
17
18
18
20
18
19
19
19
19
16
14
14
14
13
15
15
15
15
15
15

Dew Point (°C)

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

Relative Humidity (%)

92
86
77
68
60
52
48
44
41
44
47
55
61
57
53
55
59
62
72
78
80
83
84
84

Pressure (mb)

1022
1023
1023
1023
1023
1022
1022
1022
1021
1021
1021
1021
1021
1022
1023
1023
1023
1024
1024
1024
1024
1024
1024
1024

Ozone (du)

313
315
314
314
312
308
306
304
304
303
302
301
299
297
296
294
293
293
294
296
295
295
295
294

Thursday 3

Waning Gibbous 52%

22:32

14:24

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

Sun - Rise: 06:47, Set: 20:00, Transit: 13:23. Moon - Rise: 22:32, Set: 14:24. Civil Dark: 20:32 - 06:16. Nautical Dark: 21:10 - 05:38. Astro Dark: 21:50 - 04:58

Total Clouds (% Sky Obscured)

51
48
54
39
28
17
10
10
10
13
18
41
13
17
31
40
33
29
23
18
46
56
23
12

Low Clouds (% Sky Obscured)

12
9
9
7
4
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

18
15
15
11
9
5
1
1
1
0
2
3
2
14
24
39
32
25
18
15
13
11
8
4

High Clouds (% Sky Obscured)

2
1
8
2
4
5
8
8
8
11
14
41
9
1
4
0
1
4
5
3
39
55
18
9

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
16
17
18
20
20
20
21
21
22
22
21
19
18
17
17
14
14
14
15
15
13
13
15

Dew Point (°C)

11
11
10
9
10
8
7
7
7
7
9
10
11
9
9
9
7
8
9
9
9
9
10
10

Relative Humidity (%)

83
80
69
61
55
48
43
40
38
39
43
52
60
59
62
65
65
69
71
72
74
74
75
75

Pressure (mb)

1025
1025
1025
1025
1025
1024
1024
1023
1023
1023
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1022
1022
1022
1021

Ozone (du)

293
293
292
292
291
290
290
289
289
288
288
287
288
289
289
287
287
286
285
286
284
285
284
284

Friday 4

Third Quarter 52%

23:22

15:40

07 OK
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 Good
22 Good
23 Good
00 Good
01 Good
02 OK
03 OK
04 OK
05 Bad
06 Bad

Sun - Rise: 06:49, Set: 19:58, Transit: 13:23. Moon - Rise: 23:22, Set: 15:40. Civil Dark: 20:30 - 06:17. Nautical Dark: 21:07 - 05:40. Astro Dark: 21:48 - 04:59

Total Clouds (% Sky Obscured)

35
8
5
4
0
0
3
4
3
3
3
3
7
7
6
5
3
1
0
0
0
0
18
36

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
9
18

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
3
3
3
3
2
1
0
0
0
0
13
27

High Clouds (% Sky Obscured)

35
7
3
2
0
0
2
2
2
2
2
3
4
4
3
2
1
1
0
0
0
0
2
4

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
8
7
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
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
2
7
12
10
15
16
18
20
22
21
38
47

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
6
5
5
6
7
8
8
8
8
7
5
5
4
5
5
7
6
6
6
6
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
75
65
57
49
44
42
41
40
40
43
51
60
60
61
63
65
68
72
77
81
85
90
90

Pressure (mb)

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

Ozone (du)

285
284
284
285
285
285
284
283
282
282
283
283
284
283
284
284
285
286
288
289
289
288
288
287

Saturday 5

Waning Crescent 40%

00:27

16:45

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

Sun - Rise: 06:50, Set: 19:56, Transit: 13:22. Moon - Rise: 00:27, Set: 16:45. Civil Dark: 20:27 - 06:19. Nautical Dark: 21:05 - 05:41. Astro Dark: 21:45 - 05:01

Total Clouds (% Sky Obscured)

56
51
45
49
57
61
60
64
67
66
52
35
21
22
22
20
22
23
28
49
70
93
76
61

Low Clouds (% Sky Obscured)

28
42
45
49
57
61
60
64
67
66
52
35
21
21
15
4
2
2
0
0
0
0
0
3

Medium Clouds (% Sky Obscured)

40
45
45
49
48
53
57
40
23
6
4
2
0
1
2
3
5
8
11
14
15
22
16
8

High Clouds (% Sky Obscured)

5
13
12
13
10
17
24
22
24
24
18
10
1
1
2
3
3
3
3
22
38
56
40
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

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

Precipitation Probability (%)

53
55
53
49
47
41
35
43
46
48
44
36
21
17
9
1
1
1
0
0
0
0
0
0

Precipitation Amount (mm)

0.2
0.2
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
8
9
9
10
10
10
9
9
7
6
5
3
2
2
2
2
2
2
2
2
2

Chance of Frost

Temperature (°C)

18
19
20
20
21
22
22
23
23
22
23
22
21
19
19
17
17
16
16
15
14
13
13
13

Feels Like (°C)

20
20
20
20
21
22
22
23
23
21
21
22
23
24
20
20
21
20
20
20
16
14
14
13

Dew Point (°C)

17
18
19
19
20
20
20
21
20
18
17
17
17
17
16
14
13
13
12
11
11
11
11
11

Relative Humidity (%)

92
95
93
92
91
88
87
84
80
75
72
75
80
85
82
79
77
78
78
76
80
83
86
86

Pressure (mb)

1021
1021
1022
1022
1022
1022
1022
1023
1022
1022
1022
1023
1023
1024
1024
1025
1026
1026
1026
1026
1026
1026
1026
1026

Ozone (du)

286
285
287
289
292
294
297
299
301
302
304
304
304
304
303
302
300
299
298
297
296
296
296
295

Sunday 6

Waning Crescent 28%

01:45

17:36

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

Sun - Rise: 06:51, Set: 19:54, Transit: 13:22. Moon - Rise: 01:45, Set: 17:36. Civil Dark: 20:25 - 06:20. Nautical Dark: 21:03 - 05:43. Astro Dark: 21:43 - 05:03

Total Clouds (% Sky Obscured)

46
38
30
22
18
15
13
10
7
4
5
5
5
21
37
55
65
75
86

Low Clouds (% Sky Obscured)

12
23
30
22
18
5
1
1
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
2
4
7
11
18
20

High Clouds (% Sky Obscured)

18
14
11
5
4
4
3
2
2
2
3
3
4
17
32
46
50
56
70

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
14
15
17
18
19
20
21
22
22
22
20
19
17
17
16
15
15
15

Feels Like (°C)

12
13
14
14
14
14
15
15
22
21
20
21
22
23
15
16
16
17
16

Dew Point (°C)

10
11
11
11
11
10
10
10
10
10
11
11
12
13
13
13
13
13
13

Relative Humidity (%)

84
86
76
68
61
56
51
47
48
48
49
57
65
77
79
83
89
89
89

Pressure (mb)

1027
1027
1027
1026
1026
1026
1025
1025
1024
1024
1023
1023
1023
1023
1023
1024
1024
1023
1023

Ozone (du)

295
295
294
293
292
291
291
291
291
291
291
291
290
290
290
289
289
290
290

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

Generated: 31/08/26 06:45:49. Forecast: 31/08/26 to 06/09/26. Timezone: UTC+2.00