Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 21

Waxing Crescent 8%

09:29

20:13

06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 OK
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

Sun - Rise: 08:03, Set: 17:11, Transit: 12:37. Moon - Rise: 09:29, Set: 20:13. Civil Dark: 17:44 - 07:29. Nautical Dark: 18:22 - 06:52. Astro Dark: 18:59 - 06:15

Total Clouds (% Sky Obscured)

76
63
62
68
63
83
45
50
83
67
99
100
100
100
100
100
100
100
95
52
50
48
71
100

Low Clouds (% Sky Obscured)

38
38
38
38
38
35
35
35
35
35
35
35
30
35
35
35
35
35
35
35
43
43
43
38

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
2
2
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

27
32
62
29
23
36
7
18
54
31
64
65
65
70
75
75
70
65
60
16
10
7
32
70

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 (%)

100
100
100
100
100
48
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1

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
2
2
2
1
2
2
2
2
1
1
2
2
2
2
2
2
2
1
1
1
1
1
1

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
91
89
84
75
67
62
58
57
59
68
80
82
86
87
89
89
91
92
91
92
92
92
92

Pressure (mb)

1014
1013
1013
1013
1012
1011
1010
1009
1007
1006
1006
1005
1005
1005
1004
1004
1003
1003
1002
1002
1002
1002
1001
1001

Ozone (du)

371
373
379
383
385
388
387
378
372
366
365
362
359
355
349
344
342
342
343
342
340
338
339
338

Thursday 22

Waxing Crescent 15%

09:46

21:27

06 Bad
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

Sun - Rise: 08:02, Set: 17:12, Transit: 12:37. Moon - Rise: 09:46, Set: 21:27. Civil Dark: 17:46 - 07:28. Nautical Dark: 18:23 - 06:51. Astro Dark: 19:00 - 06:14

Total Clouds (% Sky Obscured)

100
100
100
98
100
100
99
62
100
100
100
100
100
100
98
94
95
77
62
45
100
100
100
100

Low Clouds (% Sky Obscured)

38
43
43
38
38
35
35
40
35
35
35
34
24
24
25
38
24
27
28
39
38
43
43
43

Medium Clouds (% Sky Obscured)

0
0
0
0
14
2
2
2
2
95
100
100
100
100
98
93
74
44
28
45
25
48
97
100

High Clouds (% Sky Obscured)

75
99
95
85
96
86
87
26
98
100
100
100
100
69
41
81
66
43
43
19
67
100
100
67

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
2
2
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
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)

1
1
1
1
1
1
1
0
1
2
2
2
1
1
1
1
1
1
2
2
2
2
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
92
92
90
82
75
71
67
63
66
74
83
86
87
87
89
91
91
91
92
92
92
92
91

Pressure (mb)

1001
1002
1002
1002
1002
1002
1001
1001
1001
1001
1001
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1001
1001

Ozone (du)

338
343
343
344
348
350
353
355
357
359
361
358
363
369
372
373
372
372
376
378
379
378
379
380

Friday 23

Waxing Crescent 23%

10:01

22:42

06 Bad
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

Sun - Rise: 08:01, Set: 17:14, Transit: 12:37. Moon - Rise: 10:01, Set: 22:42. Civil Dark: 17:47 - 07:27. Nautical Dark: 18:25 - 06:50. Astro Dark: 19:01 - 06:14

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
99
99
100
100
100
100
100
93
60
64
63
43
42
49
83
54
48
50

Low Clouds (% Sky Obscured)

46
88
99
99
82
100
96
89
86
79
52
60
46
27
43
50
42
3
7
9
9
6
18
30

Medium Clouds (% Sky Obscured)

100
89
82
80
63
51
85
94
100
100
100
98
95
93
19
13
18
43
42
49
82
54
48
50

High Clouds (% Sky Obscured)

4
2
4
45
51
50
55
55
100
100
100
100
67
69
0
0
0
0
42
49
55
54
48
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 (%)

1
2
2
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
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

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

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
2
2
1
1
1
2
1
1
1
1
2
2
1
2
2
2
1
2
1
1
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
89
86
81
75
72
69
67
69
74
81
83
86
86
87
89
92
92
94
92
94
92
94

Pressure (mb)

1001
1001
1001
1001
1001
1000
1000
999
999
999
999
999
999
999
999
999
999
999
999
999
999
999
1000
999

Ozone (du)

370
374
371
368
368
371
372
371
370
367
367
370
373
377
379
380
382
382
382
383
384
385
386
388

Saturday 24

Waxing Crescent 33%

10:18

23:59

06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
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

Sun - Rise: 08:00, Set: 17:15, Transit: 12:38. Moon - Rise: 10:18, Set: 23:59. Civil Dark: 17:49 - 07:27. Nautical Dark: 18:26 - 06:49. Astro Dark: 19:02 - 06:13

Total Clouds (% Sky Obscured)

94
99
55
49
46
39
38
80
69
28
39
75
83
83
84
86
89
93
97
98
99
100
100
100

Low Clouds (% Sky Obscured)

38
41
41
37
35
29
27
22
13
6
11
16
21
25
24
81
75
87
90
90
90
91
93
96

Medium Clouds (% Sky Obscured)

94
99
55
49
46
39
28
19
53
2
14
54
18
20
17
42
63
75
86
93
96
100
100
60

High Clouds (% Sky Obscured)

50
33
15
0
0
0
3
50
50
18
18
54
47
49
54
52
47
46
45
63
83
83
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
0
0
0
0
0
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
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
Snow
None
None
None
None
None

Precipitation Probability (%)

5
28
40
48
43
35
20
16
11
0
1
1
0
2
4
6
14
32
36
12
15
1
5
6

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
94
94
91
81
75
71
69
67
67
73
81
84
86
87
89
87
87
96
98
100
98
100
98

Pressure (mb)

999
1000
1000
1000
1000
999
999
998
998
998
998
998
998
999
999
1000
1000
1000
1000
1000
1000
1000
1000
999

Ozone (du)

392
396
399
401
403
403
404
407
409
412
415
418
418
418
417
420
421
421
421
423
424
425
425
425

Sunday 25

Waxing Crescent 45%

10:36

01:19

06 Bad
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

Sun - Rise: 07:59, Set: 17:17, Transit: 12:38. Moon - Rise: 10:36, Set: 01:19. Civil Dark: 17:50 - 07:26. Nautical Dark: 18:27 - 06:48. Astro Dark: 19:04 - 06:12

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
97
99
99
100
99
98
98
99
99
100
100
100

Low Clouds (% Sky Obscured)

99
97
96
94
96
98
100
86
63
45
48
49
77
67
63
58
66
74
81
87
92
96
94
92

Medium Clouds (% Sky Obscured)

60
98
57
76
100
100
100
99
34
29
20
13
8
65
72
79
72
55
47
48
51
55
70
86

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
86
69
54
53
53
41
99
99
99
80
63
47
63
75
77
72
68

ISS Passover

Visibility (miles)

5
6
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
3
0
1

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
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

5
11
14
11
15
12
2
4
3
0
1
1
0
15
17
17
26
32
37
49
55
57
64
69

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
1
2
1
1
1
1
1
1
1

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-1
-2
-2
-2
-2
-2
-2
-2
-2
-2
-1
-1
-1
-1
-2
-2
-2
-2
-2
-2
-1
-1
-1
-1

Relative Humidity (%)

94
92
92
91
86
84
83
78
76
76
83
88
91
92
92
94
94
94
94
94
96
98
98
98

Pressure (mb)

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

Ozone (du)

427
429
430
429
429
430
428
430
433
436
438
441
441
442
443
443
444
443
442
441
442
442
443
440

Monday 26

First Quarter 56%

10:58

02:42

06 Bad
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

Sun - Rise: 07:58, Set: 17:18, Transit: 12:38. Moon - Rise: 10:58, Set: 02:42. Civil Dark: 17:51 - 07:25. Nautical Dark: 18:29 - 06:47. Astro Dark: 19:05 - 06:11

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
96
92
87
91
95
99
98
97
96
95
95
94
96
98

Low Clouds (% Sky Obscured)

90
91
92
93
93
94
94
94
95
96
88
82
74
73
73
73
61
53
38
36
34
33
47
62

Medium Clouds (% Sky Obscured)

100
95
95
96
90
83
77
77
72
71
62
53
54
64
65
71
61
57
49
42
35
34
36
40

High Clouds (% Sky Obscured)

66
75
72
60
56
53
49
30
15
0
0
0
0
7
12
15
25
33
44
47
59
70
85
85

ISS Passover

Visibility (miles)

3
4
6
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6

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

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

Precipitation Probability (%)

75
71
63
50
50
49
44
44
45
43
39
37
35
30
24
16
16
16
16
15
12
7
19
33

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
96
94
91
88
88
86
84
84
83
82
86
89
92
94
94
94
94
94
96
94
94
94
94

Pressure (mb)

1003
1004
1004
1005
1006
1006
1006
1006
1007
1007
1007
1007
1008
1008
1008
1007
1007
1007
1007
1006
1005
1005
1004
1003

Ozone (du)

437
434
428
422
416
410
405
400
404
409
413
407
401
395
393
391
389
389
388
387
383
380
377
372

Tuesday 27

Waxing Gibbous 68%

11:26

04:05

06 Bad
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: 07:57, Set: 17:20, Transit: 12:38. Moon - Rise: 11:26, Set: 04:05. Civil Dark: 17:53 - 07:24. Nautical Dark: 18:30 - 06:46. Astro Dark: 19:06 - 06:10

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
99
99
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

80
88
95
100
100
99
99
97
95
93
89
83
75
74
70
70
66
65
64

Medium Clouds (% Sky Obscured)

40
57
68
69
66
63
42
61
78
100
100
100
100
99
100
100
90
80
69

High Clouds (% Sky Obscured)

75
70
65
45
40
40
45
66
87
95
69
41
14
33
53
75
58
46
25

ISS Passover

Visibility (miles)

3
0
3
6
9
9
9
9
8
6
4
3
1
0
0
0
0
0
0

Fog (%)

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

Precipitation Type

Snow
Snow
Snow
Frozen rai
Frozen rai
Frozen rai
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Snow

Precipitation Probability (%)

49
68
84
95
88
78
68
71
73
73
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0.2
0.3
0.5
0.7
0.5
0.4
0.2
0.3
0.4
0.4
0.7
1
1.3
1.6
1.7
1.6
1
0.8
0.7

Wind Speed/Direction (mph)

2
2
2
3
3
5
7
9
7
5
4
2
2
3
2
2
2
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
94
96
94
94
92
91
89
93
94
98
98
98
98
100
100
100
100
98

Pressure (mb)

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

Ozone (du)

367
362
361
360
359
362
364
367
369
370
372
373
374
375
384
393
401
402
403

Forecast for Rümlang, Dielsdorf, Switzerland (47.45,8.53)

Generated: 21/01/26 06:04:14. Forecast: 21/01/26 to 27/01/26. Timezone: UTC+1.00