Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 17

New Moon 2%

06:31

20:44

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

Sun - Rise: 06:29, Set: 20:16, Transit: 13:23. Moon - Rise: 06:31, Set: 20:44. Civil Dark: 20:48 - 05:56. Nautical Dark: 21:28 - 05:16. Astro Dark: 22:12 - 04:32

Total Clouds (% Sky Obscured)

78
83
63
58
13
22
25
22
12
7
9
16
18
8
6
5
51
92
30
5
11
47
57
62

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
5
0
0

Medium Clouds (% Sky Obscured)

39
38
37
29
10
16
18
18
8
2
2
11
16
4
0
0
0
0
0
0
0
34
49
62

High Clouds (% Sky Obscured)

78
51
36
5
5
5
3
3
3
3
5
5
3
3
6
4
48
84
30
4
3
7
24
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
2
2
2
1
1
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
1
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)

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

Chance of Frost

Temperature (°C)

17
16
16
14
12
10
9
7
7
7
6
6
7
7
6
8
12
14
15
16
17
18
18
18

Feels Like (°C)

16
14
15
13
11
11
10
8
8
7
7
7
7
7
7
9
13
14
14
16
18
18
18
17

Dew Point (°C)

7
8
11
11
9
8
7
5
6
5
5
5
6
6
5
6
8
9
9
8
8
8
7
6

Relative Humidity (%)

52
61
74
82
86
85
87
87
88
88
90
90
93
93
91
85
79
71
66
60
55
51
47
45

Pressure (mb)

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

Ozone (du)

355
355
353
353
354
354
355
354
353
352
350
349
348
347
349
350
350
350
351
350
348
346
344
343

Saturday 18

Waxing Crescent 6%

07:01

22:11

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: 06:27, Set: 20:17, Transit: 13:23. Moon - Rise: 07:01, Set: 22:11. Civil Dark: 20:50 - 05:54. Nautical Dark: 21:30 - 05:14. Astro Dark: 22:14 - 04:30

Total Clouds (% Sky Obscured)

62
65
71
78
89
76
82
66
86
100
100
99
100
100
100
100
100
100
100
100
100
88
45
100

Low Clouds (% Sky Obscured)

35
35
35
2
7
5
7
13
26
60
63
68
68
32
65
33
77
54
63
75
94
85
42
86

Medium Clouds (% Sky Obscured)

62
48
71
78
88
72
79
39
52
80
87
80
90
96
94
100
100
100
91
42
20
3
1
7

High Clouds (% Sky Obscured)

62
65
70
70
67
74
52
29
41
77
100
96
52
83
100
88
100
100
100
100
57
2
6
99

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
8
5
3
3
9
4
3
3
8
5
5

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
27
12
3
2
13
2
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

1
3
1
0
1
3
5
0
0
2
3
25
55
68
74
83
88
88
95
95
95
90
87
93

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.4
0.6
0.5
0.3
1
0.7
0.7
0.6
0.5
0.7

Wind Speed/Direction (mph)

4
3
2
2
3
4
4
4
4
4
4
4
3
4
4
5
6
9
8
9
9
10
10
10

Chance of Frost

Temperature (°C)

18
17
18
15
13
12
9
8
8
8
8
9
8
8
9
11
12
12
11
12
12
13
13
12

Feels Like (°C)

17
16
17
15
12
10
7
7
8
7
7
7
7
7
8
10
11
11
10
9
10
11
11
12

Dew Point (°C)

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

Relative Humidity (%)

46
61
74
75
74
77
78
84
87
88
85
82
82
93
96
96
93
93
88
87
87
86
80
79

Pressure (mb)

1019
1018
1019
1019
1019
1019
1020
1020
1020
1019
1019
1018
1019
1018
1018
1018
1018
1019
1019
1019
1019
1018
1018
1018

Ozone (du)

342
342
340
341
342
345
348
352
354
354
355
358
358
359
363
365
366
373
377
381
384
384
383
384

Sunday 19

Waxing Crescent 14%

07:42

23:38

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: 06:25, Set: 20:19, Transit: 13:23. Moon - Rise: 07:42, Set: 23:38. Civil Dark: 20:51 - 05:52. Nautical Dark: 21:32 - 05:12. Astro Dark: 22:16 - 04:27

Total Clouds (% Sky Obscured)

91
90
92
84
87
89
90
89
71
89
79
89
89
87
52
52
42
70
74
78
99
91
91
91

Low Clouds (% Sky Obscured)

65
83
88
78
63
35
60
68
45
29
31
12
20
28
29
33
36
42
40
37
33
45
58
65

Medium Clouds (% Sky Obscured)

22
46
30
23
28
36
34
32
36
24
19
45
80
77
31
37
5
17
23
35
46
47
40
33

High Clouds (% Sky Obscured)

68
2
0
0
0
0
0
0
10
45
40
45
50
38
2
2
3
34
42
17
35
26
18
30

ISS Passover

Visibility (miles)

3
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
2
48
71
77
71
69
69
69
69
69
69
69
69
69

Precipitation Type

Light Rain
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 (%)

95
95
45
22
11
16
2
3
1
0
0
0
0
1
0
0
0
3
1
2
2
3
5
3

Precipitation Amount (mm)

1.7
1.3
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
7
4
3
3
1
2
2
2
2
2
2
2
2
2
2
2
3
3
4
4
4
5
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
7
8
9
7
7
7
6
6
6
6
5
5
5
5
5
6
6
5
4
3
3
2
2

Relative Humidity (%)

80
77
85
90
88
90
91
91
93
93
94
96
94
96
94
93
88
82
72
61
55
52
48
47

Pressure (mb)

1018
1018
1019
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1019
1019
1019
1019
1018
1018
1017
1016
1016
1015

Ozone (du)

386
389
390
389
392
394
394
393
392
392
393
393
392
390
390
388
387
387
387
386
385
385
384
385

Monday 20

Waxing Crescent 12%

08:37

00:57

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

Sun - Rise: 06:23, Set: 20:20, Transit: 13:22. Moon - Rise: 08:37, Set: 00:57. Civil Dark: 20:53 - 05:50. Nautical Dark: 21:33 - 05:10. Astro Dark: 22:18 - 04:25

Total Clouds (% Sky Obscured)

88
69
41
44
44
48
43
39
35
36
35
37
32
35
40
46
52
32
34
41
49
49
49
46

Low Clouds (% Sky Obscured)

54
35
32
36
36
40
36
35
31
30
33
36
32
34
39
45
51
32
34
41
49
36
23
9

Medium Clouds (% Sky Obscured)

31
33
25
30
33
35
27
19
9
7
4
2
1
1
0
0
0
0
0
0
0
11
21
32

High Clouds (% Sky Obscured)

30
21
4
3
3
3
3
3
3
3
3
3
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
4
9
9
9
9
9
9
9
9

Fog (%)

69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69

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
8
4
6
4
2
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
7
7
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)

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

Chance of Frost

Temperature (°C)

12
11
10
10
9
8
7
7
6
6
5
4
4
4
5
5
7
8
9
10
11
12
13
13

Feels Like (°C)

9
7
7
8
8
7
6
6
5
5
4
3
3
4
5
4
4
5
6
7
8
9
9
9

Dew Point (°C)

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

Relative Humidity (%)

49
54
65
76
84
87
93
94
94
94
94
94
94
96
96
91
85
75
64
56
50
48
47
51

Pressure (mb)

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

Ozone (du)

385
385
386
386
384
383
384
384
385
386
386
387
387
389
393
396
398
400
402
405
404
405
407
409

Tuesday 21

Waxing Crescent 23%

09:46

02:02

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

Sun - Rise: 06:22, Set: 20:22, Transit: 13:22. Moon - Rise: 09:46, Set: 02:02. Civil Dark: 20:54 - 05:49. Nautical Dark: 21:35 - 05:08. Astro Dark: 22:20 - 04:22

Total Clouds (% Sky Obscured)

31
17
4
3
2
1
1
0
0
0
0
0
2
0
0
62
59
64
63
63
63
51
37
18

Low Clouds (% Sky Obscured)

5
3
0
0
0
0
0
0
0
0
0
0
0
0
0
49
42
38
37
36
34
36
34
18

Medium Clouds (% Sky Obscured)

22
15
4
3
2
1
1
0
0
0
0
0
2
0
0
7
16
24
26
28
33
20
9
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
9
9
9
9
9
9
9
9
9

Fog (%)

69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69

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 (%)

7
7
4
3
2
0
1
1
0
0
0
0
0
0
0
11
13
14
24
32
36
32
27
14

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)

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

Chance of Frost

Temperature (°C)

13
11
11
9
8
7
5
5
4
4
3
3
2
2
3
4
5
6
7
8
9
10
11
11

Feels Like (°C)

9
8
8
6
6
6
5
5
3
3
3
2
2
2
2
4
3
2
1
2
2
3
9
8

Dew Point (°C)

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

Relative Humidity (%)

56
60
64
65
73
84
86
88
88
89
91
91
91
89
88
77
67
58
50
46
44
40
42
44

Pressure (mb)

1016
1016
1016
1017
1018
1019
1019
1019
1019
1020
1020
1020
1020
1020
1021
1021
1020
1020
1019
1019
1019
1018
1018
1018

Ozone (du)

410
409
407
406
404
404
403
402
399
396
396
397
397
397
399
400
403
405
408
407
407
406
406
406

Wednesday 22

Waxing Crescent 34%

11:04

02:50

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

Sun - Rise: 06:20, Set: 20:23, Transit: 13:22. Moon - Rise: 11:04, Set: 02:50. Civil Dark: 20:56 - 05:47. Nautical Dark: 21:37 - 05:06. Astro Dark: 22:22 - 04:20

Total Clouds (% Sky Obscured)

17
17
18
22
27
38
27
14
0
0
0
0
0
0
0
2
5
7
22
33
46
31
20
8

Low Clouds (% Sky Obscured)

17
17
15
15
14
15
10
4
0
0
0
0
0
0
0
2
4
6
8
11
13
10
8
6

Medium Clouds (% Sky Obscured)

5
10
18
22
27
38
27
14
0
0
0
0
0
0
0
0
0
0
15
31
46
31
18
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
9
9
9
9
9
9
9
9
9

Fog (%)

69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69

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 (%)

14
10
3
4
2
0
0
0
0
0
0
0
0
0
0
1
1
0
4
4
3
4
2
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)

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

Chance of Frost

Temperature (°C)

11
10
9
8
6
5
4
3
3
2
1
0
0
1
2
2
5
7
8
10
10
11
11
11

Feels Like (°C)

8
9
9
10
4
5
6
5
5
4
0
0
1
1
-0
-1
3
4
4
5
5
5
11
10

Dew Point (°C)

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

Relative Humidity (%)

46
53
60
69
75
80
88
89
91
91
93
92
92
89
88
83
73
64
57
52
47
43
43
42

Pressure (mb)

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

Ozone (du)

406
409
412
415
416
416
417
418
418
419
417
416
414
414
415
415
408
401
393
390
388
385
383
380

Thursday 23

Waxing Crescent 46%

12:25

03:25

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

Sun - Rise: 06:18, Set: 20:24, Transit: 13:22. Moon - Rise: 12:25, Set: 03:25. Civil Dark: 20:57 - 05:45. Nautical Dark: 21:39 - 05:03. Astro Dark: 22:24 - 04:17

Total Clouds (% Sky Obscured)

5
2
0
0
1
1
1
0
0
2
4
5
6
7
8
6
5
3
10
16
20

Low Clouds (% Sky Obscured)

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

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

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
2
4
4
4
4
4
4
3
10
16
20

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

Fog (%)

69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69

Precipitation Type

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

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

11
10
9
8
6
6
4
4
3
2
2
1
1
2
2
3
5
7
9
11
12

Feels Like (°C)

9
10
11
12
6
7
6
6
5
4
2
2
1
1
0
-0
4
5
6
6
7

Dew Point (°C)

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

Relative Humidity (%)

42
48
58
68
71
74
79
80
79
80
81
83
83
80
77
72
66
61
56
51
47

Pressure (mb)

1018
1019
1019
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1018
1018
1017
1016

Ozone (du)

378
375
373
371
370
370
369
369
368
368
366
365
363
362
361
360
359
359
358
359
359

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

Generated: 17/04/26 17:49:26. Forecast: 17/04/26 to 23/04/26. Timezone: UTC+2.00