Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 3

Full Moon 99%

16:34

08:39

07 OK
08 OK
09 Bad
10 Bad
11 Bad
12 Bad
13 OK
14 OK
15 Good
16 Good
17 OK
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: 08:11, Set: 16:46, Transit: 12:29. Moon - Rise: 16:34, Set: 08:39. Civil Dark: 17:22 - 07:36. Nautical Dark: 18:00 - 06:57. Astro Dark: 18:38 - 06:20

Total Clouds (% Sky Obscured)

27
34
86
84
77
66
27
31
4
7
42
49
96
98
86
82
72
70
52
49
48
58
53
50

Low Clouds (% Sky Obscured)

27
34
85
80
76
62
27
31
3
0
36
49
94
97
77
80
69
67
52
49
48
58
53
50

Medium Clouds (% Sky Obscured)

1
0
0
2
0
0
0
0
0
7
39
39
45
52
17
0
0
0
0
0
0
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
9
9
9
9
9
1
0
0
1
9
9
8
5
3

Fog (%)

1
1
1
2
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
None
None
None
None
None
None

Precipitation Probability (%)

6
0
6
6
4
14
1
3
2
3
3
3
4
8
6
25
32
28
7
4
1
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-7
-6
-7
-8
-7
-8
-8
-8
-8
-9
-8
-7
-5
-8
-10
-9
-7
-8
-8
-7
-8
-8
-9
-9

Relative Humidity (%)

89
90
89
79
78
73
68
67
67
68
79
85
90
80
76
82
94
94
92
94
94
96
94
94

Pressure (mb)

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

Ozone (du)

324
324
322
326
329
336
352
358
360
359
362
361
362
363
359
358
357
353
347
346
343
336
330
326

Sunday 4

Waning Gibbous 96%

17:59

09:22

07 Bad
08 Bad
09 Bad
10 OK
11 OK
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 OK
02 OK
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 08:11, Set: 16:47, Transit: 12:29. Moon - Rise: 17:59, Set: 09:22. Civil Dark: 17:23 - 07:35. Nautical Dark: 18:01 - 06:57. Astro Dark: 18:38 - 06:19

Total Clouds (% Sky Obscured)

43
34
35
31
36
9
4
4
5
1
3
3
4
4
4
5
5
7
30
34
54
65
85
94

Low Clouds (% Sky Obscured)

42
33
31
27
33
7
3
3
5
1
3
2
4
4
4
4
4
5
26
29
24
28
33
44

Medium 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

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
29
39
55
55

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
11
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
2
2
2
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
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
0
0
0
0
2
1
8

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
94
90
85
79
72
65
60
60
73
84
85
87
88
88
90
90
90
90
92
92
94
92
92

Pressure (mb)

1015
1016
1016
1016
1016
1015
1014
1014
1014
1014
1014
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

326
330
333
336
339
341
344
347
349
346
347
349
351
351
350
352
354
353
351
351
353
355
354
353

Monday 5

Waning Gibbous 91%

19:23

09:53

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
06 Bad

Sun - Rise: 08:10, Set: 16:48, Transit: 12:29. Moon - Rise: 19:23, Set: 09:53. Civil Dark: 17:24 - 07:35. Nautical Dark: 18:02 - 06:56. Astro Dark: 18:39 - 06:19

Total Clouds (% Sky Obscured)

100
99
99
68
90
97
100
100
95
56
56
58
58
58
58
58
58
60
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

53
54
52
54
67
79
78
78
74
39
36
24
18
12
8
4
24
39
43
41
41
38
38
38

Medium Clouds (% Sky Obscured)

0
17
43
15
33
41
34
35
40
38
34
40
50
50
50
45
45
45
50
50
45
50
65
66

High Clouds (% Sky Obscured)

55
57
45
0
0
0
0
0
0
3
6
58
58
58
52
32
6
26
72
83
97
98
99
100

ISS Passover

Visibility (miles)

1
1
1
1
4
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

2
2
1
1
1
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
10
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
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
3
3
2
3
3
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
3
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-14
-15
-15
-12
-10
-9
-9
-8
-9
-9
-8
-8
-10
-10
-9
-10
-10
-9
-10
-11
-11
-11
-11
-11

Dew Point (°C)

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

Relative Humidity (%)

94
92
88
85
80
77
73
72
71
82
90
92
90
92
90
90
90
90
90
90
88
88
88
88

Pressure (mb)

1016
1017
1017
1017
1017
1016
1016
1015
1015
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016

Ozone (du)

354
355
354
354
355
358
359
357
357
357
356
359
363
367
366
369
369
374
375
375
376
378
378
380

Tuesday 6

Waning Gibbous 83%

20:43

10:16

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
06 Bad

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

Total Clouds (% Sky Obscured)

100
100
100
89
86
75
99
98
59
58
62
64
72
99
100
100
100
100
100
100
100
99
98
97

Low Clouds (% Sky Obscured)

38
38
38
41
62
52
53
54
54
56
55
56
60
63
77
78
75
62
61
56
52
53
55
56

Medium Clouds (% Sky Obscured)

66
66
67
65
65
65
62
54
51
52
49
50
61
98
100
100
100
100
100
100
100
95
88
83

High Clouds (% Sky Obscured)

100
100
100
69
39
22
55
55
4
0
0
0
6
13
19
13
8
24
25
25
20
20
20
25

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
5
5
3
4
4
5
6
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
Snow
None
None
Snow
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

5
5
3
17
20
18
27
32
36
33
32
35
31
30
29
26
27
27
27
27
27
26
27
30

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.1
0
0
0.1
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-7
-7
-7
-6
-6
-6
-5
-5
-7
-7
-7
-8
-8
-8
-8
-8
-9
-9
-9
-9
-9
-10
-10
-10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
85
80
77
73
70
70
71
82
88
90
92
90
90
90
90
90
90
92
92
92
92
90

Pressure (mb)

1016
1016
1016
1016
1015
1015
1014
1014
1014
1014
1014
1015
1015
1015
1015
1016
1015
1015
1015
1015
1015
1015
1016
1016

Ozone (du)

381
385
388
390
393
395
394
389
389
391
393
395
397
398
399
402
407
409
411
413
413
413
412
414

Wednesday 7

Waning Gibbous 74%

21:58

10:35

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

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

Total Clouds (% Sky Obscured)

98
99
100
100
80
61
79
59
54
57
56
51
44
38
34
56
78
100
100
100
100
96
91
86

Low Clouds (% Sky Obscured)

46
29
9
20
31
39
48
44
50
51
53
51
36
31
27
20
12
2
12
22
33
57
77
86

Medium Clouds (% Sky Obscured)

67
54
45
67
46
38
30
30
29
22
19
10
1
1
2
34
67
100
100
100
100
88
76
74

High Clouds (% Sky Obscured)

57
79
82
60
47
18
26
11
2
4
3
3
1
1
2
7
14
20
35
58
65
44
24
1

ISS Passover

Visibility (miles)

8
8
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 (%)

28
24
18
15
11
1
2
2
0
5
5
5
1
0
0
0
0
0
2
2
2
17
23
28

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
92
88
81
74
68
66
63
63
76
85
88
88
86
86
85
81
80
76
75
77
75
78
83

Pressure (mb)

1016
1016
1016
1016
1016
1015
1015
1014
1014
1014
1015
1016
1016
1018
1019
1019
1019
1019
1019
1019
1019
1020
1020
1020

Ozone (du)

419
425
431
432
431
429
425
423
422
427
425
428
434
435
436
437
436
435
434
436
438
439
437
435

Thursday 8

Waning Gibbous 65%

23:09

10:51

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
06 Bad

Sun - Rise: 08:10, Set: 16:52, Transit: 12:31. Moon - Rise: 23:09, Set: 10:51. Civil Dark: 17:27 - 07:35. Nautical Dark: 18:05 - 06:56. Astro Dark: 18:42 - 06:19

Total Clouds (% Sky Obscured)

79
74
76
73
67
57
62
64
60
54
52
54
64
74
78
78
71
67
62
62
57
53
53
53

Low Clouds (% Sky Obscured)

79
73
65
58
48
44
39
31
24
22
19
18
14
9
5
12
19
26
25
26
24
23
28
32

Medium Clouds (% Sky Obscured)

71
68
71
70
65
56
49
55
56
41
36
31
55
68
78
78
71
67
62
62
57
53
53
53

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
25
43
60
50
30
15
6
2
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 (%)

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

Precipitation Probability (%)

35
40
45
39
31
19
16
10
1
1
0
0
0
0
0
0
1
0
1
1
1
10
16
18

Precipitation Amount (mm)

0
0.1
0.2
0.1
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
7
8
9
9
10
9
7
7
5
4
4
4
4
4
4
4
4
4
4
5
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
82
80
77
73
70
68
70
75
79
82
87
90
90
88
88
87
87
85
82
80
77
77
77

Pressure (mb)

1021
1021
1022
1023
1022
1022
1022
1023
1023
1023
1024
1024
1025
1025
1025
1025
1024
1024
1023
1022
1021
1020
1019
1017

Ozone (du)

433
432
432
431
431
430
429
424
419
414
404
394
383
378
373
367
364
361
357
352
347
342
340
338

Friday 9

Waning Gibbous 55%

00:18

11:05

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

Sun - Rise: 08:09, Set: 16:53, Transit: 12:31. Moon - Rise: 00:18, Set: 11:05. Civil Dark: 17:28 - 07:34. Nautical Dark: 18:06 - 06:56. Astro Dark: 18:43 - 06:19

Total Clouds (% Sky Obscured)

50
47
44
63
81
100
100
100
100
100
100
100
97
94
91
92
93
94

Low Clouds (% Sky Obscured)

29
25
19
27
36
50
59
68
74
82
91
99
96
93
88
89
89
90

Medium Clouds (% Sky Obscured)

40
22
13
33
53
75
84
93
100
100
100
100
97
94
91
92
93
94

High Clouds (% Sky Obscured)

17
26
25
45
72
100
100
100
100
99
98
97
93
89
85
85
80
85

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
7
4
2
3
4
4
3
3
2
1
1

Fog (%)

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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

36
45
54
53
52
47
73
91
95
95
95
95
87
80
79
83
91
95

Precipitation Amount (mm)

0
0
0.1
0.2
0.2
0.2
0.4
0.7
1
0.9
0.8
0.7
0.5
0.4
0.4
0.5
0.6
0.7

Wind Speed/Direction (mph)

5
4
4
5
5
5
5
9
12
16
16
16
18
18
19
19
19
19

Chance of Frost

Temperature (°C)

-7
-5
-5
-4
-3
-2
-1
0
2
2
2
1
0
0
0
0
1
0

Feels Like (°C)

-8
-8
-9
-9
-9
-10
-10
-3
-2
-1
-2
-2
-3
-3
-4
-4
-4
-4

Dew Point (°C)

-10
-10
-10
-11
-11
-12
-12
-9
-6
-4
-3
-2
-2
-2
-2
-2
-1
-1

Relative Humidity (%)

77
72
65
59
54
48
42
49
58
66
70
77
83
84
86
86
89
92

Pressure (mb)

1016
1015
1014
1012
1011
1009
1007
1006
1006
1005
1006
1007
1007
1008
1008
1008
1008
1009

Ozone (du)

335
335
334
333
330
327
325
324
324
323
324
324
325
326
327
329
332
335

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

Generated: 03/01/26 06:37:01. Forecast: 03/01/26 to 09/01/26. Timezone: UTC+1.00