Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 2

Waxing Gibbous 100%

15:17

08:39

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 OK
05 OK
06 OK
07 Good
08 OK
09 OK
10 OK

Sun - Rise: 08:11, Set: 16:45, Transit: 12:28. Moon - Rise: 15:17, Set: 08:39. Civil Dark: 17:21 - 07:36. Nautical Dark: 17:59 - 06:57. Astro Dark: 18:37 - 06:20

Total Clouds (% Sky Obscured)

89
92
93
99
98
95
95
91
100
100
100
100
100
95
83
68
73
19
22
16
12
11
17
25

Low Clouds (% Sky Obscured)

89
92
93
89
89
87
87
85
98
100
100
100
96
78
81
62
70
19
22
16
12
10
17
25

Medium Clouds (% Sky Obscured)

89
92
93
99
96
81
75
79
100
100
100
100
100
82
40
22
13
2
0
0
0
0
0
0

High Clouds (% Sky Obscured)

50
10
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)

8
9
9
9
9
6
6
4
4
1
1
0
0
0
0
0
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
2
6
7
6
4
2
2

Precipitation Type

None
None
Snow
None
None
None
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
36
28
32
35
29
47
56
71
95
95
95
73
65
47
22
13
7
2
1
0
0
0

Precipitation Amount (mm)

0
0
0.1
0
0
0
0
0.2
0.2
0.3
0.9
0.8
0.8
0.2
0.3
0.1
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

14
13
12
13
13
14
14
14
16
17
16
18
17
13
11
10
9
8
8
7
6
6
6
6

Chance of Frost

Temperature (°C)

-1
-2
-1
-2
-1
-0
-1
-1
-1
-1
-2
-2
-2
-3
-3
-3
-4
-4
-4
-5
-5
-5
-5
-4

Feels Like (°C)

-7
-7
-7
-7
-6
-5
-5
-6
-6
-7
-8
-8
-8
-8
-7
-7
-7
-7
-6
-7
-7
-7
-7
-6

Dew Point (°C)

-8
-8
-8
-8
-6
-3
-3
-4
-5
-3
-5
-3
-3
-4
-4
-4
-4
-5
-5
-6
-6
-6
-7
-7

Relative Humidity (%)

60
61
61
61
68
80
81
78
78
86
78
92
96
92
96
96
96
94
96
94
94
92
90
79

Pressure (mb)

1009
1008
1007
1006
1006
1006
1005
1005
1005
1005
1005
1006
1007
1008
1009
1010
1011
1011
1011
1011
1011
1011
1011
1011

Ozone (du)

354
352
350
346
336
328
320
314
314
314
313
316
316
319
325
321
311
308
314
322
320
316
319
322

Saturday 3

Full Moon 99%

16:34

09:22

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

Sun - Rise: 08:11, Set: 16:46, Transit: 12:29. Moon - Rise: 16:34, Set: 09:22. Civil Dark: 17:22 - 07:35. Nautical Dark: 18:00 - 06:57. Astro Dark: 18:38 - 06:20

Total Clouds (% Sky Obscured)

37
45
42
13
6
16
85
98
78
71
68
74
46
41
15
9
45
50
12
13
13
7
6
5

Low Clouds (% Sky Obscured)

36
45
42
12
5
16
85
95
74
68
68
71
44
38
14
7
45
45
8
10
9
5
4
4

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
12
5
35
39
17
2
0
0
0
0
0
0
0
2
0
0
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
2
1
9
9
9
9
9
9
9
9
8
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
6
6
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
5
6
7
6
8
6
18
20
18
5
4
2
1
2
2
2
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)

7
10
11
11
11
9
8
9
11
10
9
8
8
8
7
6
5
4
3
4
4
4
4
3

Chance of Frost

Temperature (°C)

-3
-3
-2
-3
-3
-4
-4
-4
-5
-5
-5
-5
-5
-5
-6
-7
-7
-9
-9
-9
-10
-11
-10
-9

Feels Like (°C)

-5
-7
-7
-8
-7
-7
-6
-7
-9
-9
-9
-10
-10
-9
-10
-10
-9
-13
-13
-11
-13
-13
-12
-10

Dew Point (°C)

-7
-8
-7
-8
-8
-8
-7
-6
-8
-9
-8
-7
-7
-7
-7
-8
-8
-10
-11
-10
-11
-11
-12
-12

Relative Humidity (%)

71
68
68
67
67
69
82
85
81
72
77
85
87
90
92
92
92
88
88
92
94
94
90
78

Pressure (mb)

1011
1010
1009
1009
1009
1010
1010
1011
1012
1012
1013
1013
1014
1014
1015
1015
1016
1016
1016
1016
1017
1017
1017
1017

Ozone (du)

325
330
349
354
354
355
360
362
363
362
363
363
367
367
366
363
366
362
354
351
346
341
339
340

Sunday 4

Waning Gibbous 96%

17:59

09:53

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

Sun - Rise: 08:10, Set: 16:47, Transit: 12:29. Moon - Rise: 17:59, Set: 09:53. Civil Dark: 17:23 - 07:35. Nautical Dark: 18:01 - 06:57. Astro Dark: 18:38 - 06:19

Total Clouds (% Sky Obscured)

5
4
3
10
20
2
4
5
5
5
5
5
5
7
5
4
29
35
45
39
44
44
41
48

Low Clouds (% Sky Obscured)

4
3
2
10
20
2
4
4
4
4
4
4
4
4
2
2
2
2
21
23
27
35
36
43

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
29
35
26
13
9
5
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
2
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
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-11
-11
-12
-11
-10
-9
-8
-8
-9
-10
-11
-11
-11
-12
-12
-12
-12
-12
-12
-12
-13
-12
-13
-13

Relative Humidity (%)

70
62
58
59
62
74
87
90
90
88
88
88
88
88
88
88
88
90
90
88
88
88
83
77

Pressure (mb)

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

Ozone (du)

340
342
346
348
349
348
350
352
352
353
353
352
355
351
350
348
349
348
348
349
349
349
348
350

Monday 5

Waning Gibbous 91%

19:23

10:16

11 OK
12 OK
13 Bad
14 OK
15 OK
16 OK
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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 08:10, Set: 16:48, Transit: 12:29. Moon - Rise: 19:23, Set: 10:16. Civil Dark: 17:24 - 07:35. Nautical Dark: 18:02 - 06:56. Astro Dark: 18:39 - 06:19

Total Clouds (% Sky Obscured)

39
46
54
46
27
39
47
82
93
60
61
58
63
64
64
68
68
74
68
68
67
67
62
62

Low Clouds (% Sky Obscured)

36
44
46
31
3
4
2
2
2
2
2
11
19
29
31
35
37
38
40
41
37
35
31
39

Medium Clouds (% Sky Obscured)

0
0
8
18
27
39
47
82
92
60
61
58
55
55
60
60
60
55
55
55
50
50
50
50

High Clouds (% Sky Obscured)

0
0
0
0
0
1
2
3
17
31
45
45
50
50
60
60
60
67
68
68
67
67
62
62

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
4
5
2
26

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)

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

Chance of Frost

Temperature (°C)

-8
-7
-6
-6
-6
-6
-7
-7
-8
-8
-8
-8
-8
-7
-7
-7
-7
-7
-7
-7
-8
-8
-8
-7

Feels Like (°C)

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

Dew Point (°C)

-12
-11
-10
-11
-10
-9
-8
-8
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9
-10
-10
-11
-11

Relative Humidity (%)

75
71
70
69
71
80
90
90
90
90
90
90
88
88
88
88
89
87
85
85
83
83
79
70

Pressure (mb)

1018
1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1017

Ozone (du)

349
347
346
347
350
352
354
355
361
367
371
375
374
375
377
379
379
383
383
385
388
391
392
392

Tuesday 6

Waning Gibbous 83%

20:43

10:35

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 08:10, Set: 16:49, Transit: 12:30. Moon - Rise: 20:43, Set: 10:35. Civil Dark: 17:25 - 07:35. Nautical Dark: 18:03 - 06:56. Astro Dark: 18:40 - 06:19

Total Clouds (% Sky Obscured)

55
50
52
53
45
48
52
47
68
84
85
99
99
97
98
99
100
99
98
97
94
91
88
85

Low Clouds (% Sky Obscured)

46
50
52
53
45
48
52
47
68
80
80
92
92
89
88
88
88
89
90
90
87
84
82
76

Medium Clouds (% Sky Obscured)

55
50
52
53
45
48
45
35
30
35
30
60
82
22
17
11
10
6
8
9
7
5
4
2

High Clouds (% Sky Obscured)

55
50
52
53
45
40
20
0
0
0
0
0
0
0
0
0
0
0
1
2
1
1
1
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
6
4
3
2
1
1
1
1
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None

Precipitation Probability (%)

30
24
43
52
59
56
57
60
57
55
55
52
49
45
66
53
37
34
31
28
26
26
25
20

Precipitation Amount (mm)

0
0
0.1
0.2
0.3
0.2
0.3
0.3
0.3
0.2
0.2
0.2
0.2
0.2
0.3
0.2
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-8
-7
-8
-8
-8
-8
-10
-9
-10
-11
-12
-12
-13
-13
-13
-14
-13
-13
-13
-13
-13
-14
-13
-13

Dew Point (°C)

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

Relative Humidity (%)

66
61
58
60
63
77
87
88
88
88
88
88
87
88
90
90
92
92
92
92
92
90
87
83

Pressure (mb)

1017
1016
1015
1014
1014
1014
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1018
1018
1018
1019

Ozone (du)

391
386
381
381
379
380
381
384
388
391
395
397
399
401
405
407
410
412
416
420
424
426
427
429

Wednesday 7

Waning Gibbous 74%

21:58

10:51

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

Sun - Rise: 08:10, Set: 16:51, Transit: 12:30. Moon - Rise: 21:58, Set: 10:51. Civil Dark: 17:26 - 07:35. Nautical Dark: 18:04 - 06:56. Astro Dark: 18:41 - 06:19

Total Clouds (% Sky Obscured)

82
78
53
28
4
15
22
35
56
72
82
86
90
93
91
90
90
93
96
99
97
95
92
95

Low Clouds (% Sky Obscured)

71
65
44
23
2
2
3
4
16
29
41
53
65
77
78
80
81
87
92
97
94
91
88
92

Medium Clouds (% Sky Obscured)

1
0
0
0
0
3
18
34
46
67
77
78
82
85
77
69
61
64
65
69
67
62
56
54

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
1

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 (%)

16
8
6
3
0
0
0
0
3
6
8
14
18
22
18
14
3
9
14
19
22
24
25
23

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

Chance of Frost

Temperature (°C)

-8
-7
-7
-7
-7
-7
-9
-10
-12
-11
-11
-11
-10
-10
-9
-10
-10
-10
-10
-9
-9
-8
-7
-6

Feels Like (°C)

-13
-13
-13
-9
-9
-9
-9
-9
-9
-13
-13
-13
-13
-13
-12
-13
-14
-14
-13
-13
-12
-13
-13
-14

Dew Point (°C)

-11
-11
-11
-11
-11
-11
-12
-12
-13
-13
-13
-13
-13
-13
-12
-13
-14
-15
-14
-14
-13
-14
-14
-14

Relative Humidity (%)

79
73
68
71
74
76
80
83
88
86
85
83
81
78
77
74
71
69
69
69
71
64
58
53

Pressure (mb)

1018
1018
1017
1017
1017
1017
1017
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

428
427
426
425
423
421
423
424
425
426
427
427
424
421
418
417
416
416
413
410
408
405
402
399

Thursday 8

Waning Gibbous 65%

23:09

11:05

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
06 Bad

Sun - Rise: 08:09, Set: 16:52, Transit: 12:31. Moon - Rise: 23:09, Set: 11:05. Civil Dark: 17:27 - 07:34. Nautical Dark: 18:05 - 06:56. Astro Dark: 18:42 - 06:19

Total Clouds (% Sky Obscured)

97
100
92
83
74
80
86
93
95
98
100
98
96
94
89
83
78
70
62
56

Low Clouds (% Sky Obscured)

95
97
74
49
23
24
23
25
24
25
32
42
50
56
63
72
78
70
62
56

Medium Clouds (% Sky Obscured)

47
35
37
45
62
64
70
78
86
93
100
98
96
94
88
83
78
70
62
56

High Clouds (% Sky Obscured)

2
3
3
4
5
21
37
52
61
66
55
50
45
40
40
35
35
40
45
30

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
7
4
2
2
2
2
4
7

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
Snow
Snow
Snow
Snow
None

Precipitation Probability (%)

21
15
20
21
18
26
26
22
26
22
18
20
22
23
38
50
56
52
49
47

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.2
0.1
0.1
0

Wind Speed/Direction (mph)

9
10
12
12
12
13
14
15
16
15
15
15
15
14
14
13
13
13
12
11

Chance of Frost

Temperature (°C)

-5
-5
-4
-3
-4
-4
-5
-5
-5
-5
-5
-5
-5
-6
-6
-6
-6
-6
-7
-8

Feels Like (°C)

-13
-13
-13
-8
-10
-9
-10
-10
-9
-12
-11
-12
-12
-13
-15
-12
-13
-13
-13
-16

Dew Point (°C)

-14
-15
-15
-14
-15
-14
-14
-13
-12
-12
-12
-12
-12
-13
-14
-12
-11
-9
-10
-11

Relative Humidity (%)

49
44
41
43
44
47
50
53
56
56
57
57
57
56
55
63
71
82
80
78

Pressure (mb)

1019
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

383
367
351
351
351
351
352
354
355
355
355
355
353
352
350
348
346
344
340
336

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

Generated: 02/01/26 11:04:27. Forecast: 02/01/26 to 08/01/26. Timezone: UTC+1.00