Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 23

Waxing Crescent 33%

10:16

22:40

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

Sun - Rise: 07:58, Set: 17:12, Transit: 12:36. Moon - Rise: 10:16, Set: 22:40. Civil Dark: 17:46 - 07:25. Nautical Dark: 18:23 - 06:47. Astro Dark: 19:00 - 06:11

Total Clouds (% Sky Obscured)

100
100
95
64
16
28
46
52
57
93
96
94
76
72
70
35
61
25
53
74
52
47
45
49

Low Clouds (% Sky Obscured)

28
0
0
0
0
14
38
40
48
70
68
60
47
34
4
25
16
4
7
4
2
2
2
1

Medium Clouds (% Sky Obscured)

87
69
24
48
8
15
22
43
47
48
58
87
68
67
63
10
8
18
46
66
52
47
45
49

High Clouds (% Sky Obscured)

76
87
55
52
5
3
3
3
3
4
5
5
7
61
46
6
61
22
53
74
52
47
45
49

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
81
81
82
86
86
87
89
91
91
89
87
86
86
87
89
89
81
74
73
73
76
80
83

Pressure (mb)

998
998
998
998
999
999
1000
1001
1001
1002
1002
1002
1002
1002
1002
1003
1003
1002
1002
1002
1001
1001
1001
1001

Ozone (du)

379
383
382
379
379
380
379
380
379
380
381
380
382
385
388
390
390
391
392
392
393
394
395
396

Saturday 24

Waxing Crescent 33%

10:34

23:57

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

Sun - Rise: 07:57, Set: 17:14, Transit: 12:36. Moon - Rise: 10:34, Set: 23:57. Civil Dark: 17:47 - 07:24. Nautical Dark: 18:25 - 06:47. Astro Dark: 19:01 - 06:10

Total Clouds (% Sky Obscured)

30
60
62
92
79
97
100
61
99
100
100
100
100
100
100
99
96
96
87
77
71
72
100
100

Low Clouds (% Sky Obscured)

3
2
3
18
22
16
14
31
48
47
45
43
41
41
46
40
51
40
62
67
64
66
62
58

Medium Clouds (% Sky Obscured)

14
2
0
14
19
5
0
45
55
63
100
50
100
100
100
78
83
91
70
47
34
54
100
100

High Clouds (% Sky Obscured)

7
33
37
86
76
97
100
34
98
100
100
100
100
100
100
94
35
47
40
45
50
50
45
56

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
0

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
1
2
2
6
9
12
3
1
0
0
0
0
6
30

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
89
87
89
89
91
91
91
91
92
92
92
92
91
89
91
87
83
78
77
74
74
76
88

Pressure (mb)

1001
1001
1002
1002
1002
1002
1002
1003
1003
1004
1003
1003
1003
1002
1002
1002
1002
1002
1002
1001
1000
999
999
1000

Ozone (du)

400
403
400
402
403
405
410
412
413
414
413
412
412
414
416
417
421
421
423
422
422
422
423
424

Sunday 25

Waxing Crescent 45%

10:56

01:17

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
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 07:56, Set: 17:15, Transit: 12:36. Moon - Rise: 10:56, Set: 01:17. Civil Dark: 17:49 - 07:23. Nautical Dark: 18:26 - 06:46. Astro Dark: 19:02 - 06:10

Total Clouds (% Sky Obscured)

100
97
82
100
100
100
100
100
100
91
80
86
84
88
96
94
91
94
100
92
85
78
71
66

Low Clouds (% Sky Obscured)

59
40
40
40
35
55
57
90
93
84
74
83
79
80
81
90
86
86
60
72
67
66
63
60

Medium Clouds (% Sky Obscured)

100
97
82
100
93
100
100
100
100
90
69
82
84
75
91
88
85
89
100
83
73
64
60
54

High Clouds (% Sky Obscured)

45
46
64
40
100
83
100
100
90
48
47
50
40
35
30
30
25
44
53
35
35
15
30
15

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
2
8
16
20
6
7
11
13
2
4
4
4
4
4
4
4
4
4
4

Precipitation Type

None
Light Rain
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

47
68
79
80
74
79
86
90
90
74
64
72
76
75
84
92
93
95
95
93
83
80
88
91

Precipitation Amount (mm)

0
0.4
0.4
0.4
0.4
0.4
0.5
0.5
0.7
0.4
0.2
0.3
0.4
0.4
0.5
0.6
0.5
0.7
0.7
0.6
0.5
0.5
0.7
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
98
100
98
100
100
98

Pressure (mb)

1000
1000
1000
999
999
999
999
1000
1000
1000
1000
1000
1000
1000
1000
1001
1002
1003
1003
1003
1003
1003
1004
1004

Ozone (du)

428
428
430
431
432
432
435
438
442
443
445
447
448
448
445
444
444
444
443
443
446
448
449
451

Monday 26

First Quarter 56%

11:25

02:40

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
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 07:55, Set: 17:17, Transit: 12:37. Moon - Rise: 11:25, Set: 02:40. Civil Dark: 17:50 - 07:22. Nautical Dark: 18:27 - 06:45. Astro Dark: 19:03 - 06:09

Total Clouds (% Sky Obscured)

59
53
55
62
69
79
85
95
92
100
99
92
89
84
86
88
90
93
97
100
97
95
93
95

Low Clouds (% Sky Obscured)

54
48
47
46
45
36
32
24
29
39
39
44
48
55
56
41
33
32
17
6
4
7
22
13

Medium Clouds (% Sky Obscured)

37
35
35
35
35
57
69
88
67
62
62
54
41
34
47
71
68
81
55
98
63
95
93
60

High Clouds (% Sky Obscured)

2
2
10
17
20
28
37
45
54
79
42
31
69
56
57
66
75
71
61
55
53
53
50
67

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
4
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4

Precipitation Type

Light Rain
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 (%)

71
50
51
50
35
8
3
1
0
0
0
0
0
0
0
0
0
1
1
0
3
6
7
12

Precipitation Amount (mm)

0.4
0.1
0.2
0.2
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
5
5
5
5
5
5
5
5
5
5
5
5
4
4
4
3
3
3
3
4
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-3
-4
-6
-6
-6
-6
-5
-6
-5
-6
-8
-8
-7
-5
-6
-5
-4
-2
-1
0
1
1
0
0

Dew Point (°C)

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

Relative Humidity (%)

100
100
100
98
98
100
100
98
98
98
96
98
96
98
96
96
96
92
91
93
93
93
94
98

Pressure (mb)

1004
1005
1005
1006
1006
1006
1006
1006
1006
1006
1006
1005
1005
1004
1004
1003
1002
1002
1000
1000
998
997
996
996

Ozone (du)

448
446
443
443
439
436
440
435
424
407
393
393
396
397
403
401
389
384
377
370
368
368
363
360

Tuesday 27

Waxing Gibbous 68%

12:04

04:03

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
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 07:54, Set: 17:18, Transit: 12:37. Moon - Rise: 12:04, Set: 04:03. Civil Dark: 17:51 - 07:21. Nautical Dark: 18:29 - 06:44. Astro Dark: 19:05 - 06:08

Total Clouds (% Sky Obscured)

98
100
100
100
100
100
100
100
100
100
100
100
100
100
97
94
89
75
62
48
65
82
98
99

Low Clouds (% Sky Obscured)

14
31
38
39
30
49
60
73
69
69
62
58
38
29
49
45
35
30
25
20
23
36
48
49

Medium Clouds (% Sky Obscured)

97
100
93
85
80
88
95
100
100
100
100
100
100
100
97
94
89
75
62
48
65
82
93
96

High Clouds (% Sky Obscured)

83
100
100
100
100
100
100
100
93
100
100
100
100
100
15
25
39
34
34
30
54
77
83
84

ISS Passover

Visibility (miles)

3
2
0
0
0
0
0
0
0
1
6
9
1
1
0
0
0
0
0
0
0
0
0
0

Fog (%)

4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4

Precipitation Type

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

Precipitation Probability (%)

14
11
20
24
21
21
30
33
40
41
21
27
17
13
54
64
71
76
67
60
58
56
60
56

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0
0.3
0.4
0.3
0.3
0.2
0
0.3
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

100
100
100
100
100
100
100
100
98
98
98
100
100
98
96
98
98
98
100
98
100
100
100
100

Pressure (mb)

995
995
994
994
994
994
994
994
994
994
993
994
994
994
995
995
996
996
997
997
997
997
997
997

Ozone (du)

358
356
353
353
353
350
350
351
351
351
353
355
358
359
362
365
368
372
378
384
390
398
407
415

Wednesday 28

Waxing Gibbous 79%

12:58

05:21

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
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 07:53, Set: 17:20, Transit: 12:37. Moon - Rise: 12:58, Set: 05:21. Civil Dark: 17:53 - 07:20. Nautical Dark: 18:30 - 06:43. Astro Dark: 19:06 - 06:07

Total Clouds (% Sky Obscured)

99
100
100
100
100
100
100
100
100
100
100
100
100
100
98
97
96
92
86
82
85
91
97
98

Low Clouds (% Sky Obscured)

52
57
67
76
82
87
92
96
97
99
100
100
100
99
92
84
76
68
61
53
53
56
56
54

Medium Clouds (% Sky Obscured)

98
100
100
100
100
100
100
100
92
84
73
56
44
31
49
58
65
72
78
80
85
91
95
95

High Clouds (% Sky Obscured)

85
82
86
92
93
95
98
100
91
81
68
75
78
77
79
81
83
83
76
72
58
58
74
55

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
0
3
6
9
9
9
9
9
9
9
7
4
1

Fog (%)

4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4

Precipitation Type

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

Precipitation Probability (%)

53
54
54
55
57
56
49
38
65
79
87
89
95
95
92
81
71
59
51
47
44
36
30
33

Precipitation Amount (mm)

0
0
0
0.2
0.2
0.2
0
0
0.3
0.5
0.5
0.6
0.7
0.8
0.7
0.5
0.4
0.2
0.2
0.1
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

100
100
98
98
98
100
98
98
98
98
98
98
98
98
98
96
96
94
94
94
92
94
96
98

Pressure (mb)

997
998
998
999
999
999
999
1000
1000
1001
1001
1002
1002
1002
1002
1003
1003
1003
1003
1002
1002
1002
1002
1002

Ozone (du)

418
420
423
427
431
434
437
439
442
443
445
446
445
444
443
437
432
426
407
388
369
362
355
349

Thursday 29

Waxing Gibbous 88%

14:07

06:25

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
11 Bad
12 Bad

Sun - Rise: 07:51, Set: 17:21, Transit: 12:37. Moon - Rise: 14:07, Set: 06:25. Civil Dark: 17:54 - 07:19. Nautical Dark: 18:31 - 06:42. Astro Dark: 19:07 - 06:06

Total Clouds (% Sky Obscured)

99
100
99
98
97
93
89
84
87
89
93
95
98
100
100
100
100
99
98
96

Low Clouds (% Sky Obscured)

57
60
73
83
93
88
84
78
83
88
93
95
97
98
99
99
100
98
95
93

Medium Clouds (% Sky Obscured)

96
100
96
89
82
67
51
35
37
36
34
31
32
35
45
45
35
25
15
5

High Clouds (% Sky Obscured)

29
0
3
8
20
19
11
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

1
0
0
2
4
5
7
8
9
7
5
3
5
7
9
9
9
9
9
9

Fog (%)

4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4

Precipitation Type

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

Precipitation Probability (%)

35
41
47
56
66
63
59
55
52
53
63
62
55
32
29
20
8
13
16
20

Precipitation Amount (mm)

0
0
0.2
0.2
0.3
0.3
0.3
0.3
0.2
0.2
0.3
0.3
0.2
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-0
0
-0
-3
-3
-3
-3
-3
-4
-4
-5
-6
-6
-6
-6
-6
-6
-5
-5
-6

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
96
96
96
94
94
94
92
94
96
92
91
91
91
91
92
91
89

Pressure (mb)

1002
1002
1002
1002
1002
1003
1003
1003
1002
1003
1003
1004
1004
1004
1005
1005
1006
1006
1006
1007

Ozone (du)

345
342
339
343
346
349
353
357
361
364
367
370
372
374
376
378
380
383
384
385

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

Generated: 23/01/26 17:00:15. Forecast: 23/01/26 to 29/01/26. Timezone: UTC+1.00