Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 18

Waning Gibbous 69%

02:23

09:51

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

Sun - Rise: 06:26, Set: 20:19, Transit: 13:23. Moon - Rise: 02:23, Set: 09:51. Civil Dark: 20:52 - 05:54. Nautical Dark: 21:30 - 05:14. Astro Dark: 22:14 - 04:29

Total Clouds (% Sky Obscured)

56
40
32
0
0
26
45
5
0
24
45
43
78
40
56
95
97
63
62
64
71
56
88
100

Low Clouds (% Sky Obscured)

6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
7
17
2
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
26
2
2
0
0
0
0
0
10
21
15
37
50
40
27
11
4
29
43

High Clouds (% Sky Obscured)

0
0
0
0
0
9
42
2
0
18
36
37
75
36
48
87
91
22
41
42
47
49
73
87

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
1
11
18
2
2
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
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)

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

Chance of Frost

Temperature (°C)

7
6
4
3
4
4
3
3
3
3
3
4
8
11
13
15
16
17
16
16
16
15
14
12

Feels Like (°C)

7
6
4
4
4
4
3
2
3
3
3
4
8
9
12
14
14
14
16
16
15
14
12
10

Dew Point (°C)

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

Relative Humidity (%)

90
91
93
91
93
94
96
96
96
94
96
89
81
71
64
60
59
55
51
49
51
59
71
81

Pressure (mb)

1014
1014
1014
1014
1013
1013
1012
1012
1012
1011
1012
1012
1011
1010
1009
1009
1008
1007
1006
1005
1005
1005
1005
1005

Ozone (du)

358
355
351
349
348
347
347
346
344
345
346
344
344
344
344
341
338
338
339
341
341
342
345
349

Saturday 19

Waning Gibbous 59%

03:07

10:58

21 Bad
22 Good
23 Good
00 Good
01 Good
02 Good
03 Good
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
17 Bad
18 Bad
19 Bad
20 Good

Sun - Rise: 06:25, Set: 20:21, Transit: 13:23. Moon - Rise: 03:07, Set: 10:58. Civil Dark: 20:53 - 05:52. Nautical Dark: 21:32 - 05:11. Astro Dark: 22:16 - 04:27

Total Clouds (% Sky Obscured)

49
8
0
0
0
0
6
45
100
100
100
83
69
76
100
100
100
99
100
97
97
72
56
10

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
4
21
42
81
93
96
92
100
89
73
45
16
2

Medium Clouds (% Sky Obscured)

6
7
0
0
0
0
0
2
47
3
2
0
0
48
87
86
100
94
55
42
39
16
0
0

High Clouds (% Sky Obscured)

49
0
0
0
0
0
6
45
100
100
100
82
67
58
55
56
2
6
53
45
2
45
45
6

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
9
6
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
Light Rain
Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
1
2
8
36
56
79
81
37
17
19
5
1
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.4
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
85
84
83
85
86
86
88
86
88
88
84
77
71
65
70
88
91
93
90
90
88
88
94

Pressure (mb)

1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1006
1008
1008
1009
1009
1009
1010
1012
1012
1011
1011
1011
1010
1010

Ozone (du)

352
349
346
344
342
339
338
337
336
336
338
339
342
344
347
349
352
354
356
356
356
355
356
356

Sunday 20

Waning Gibbous 48%

03:41

12:13

21 Good
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
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 06:23, Set: 20:22, Transit: 13:22. Moon - Rise: 03:41, Set: 12:13. Civil Dark: 20:55 - 05:50. Nautical Dark: 21:34 - 05:09. Astro Dark: 22:18 - 04:24

Total Clouds (% Sky Obscured)

5
65
100
71
93
88
99
50
47
48
71
100
100
95
91
89
95
94
92
90
89
86
84
83

Low Clouds (% Sky Obscured)

2
2
2
2
2
3
36
45
45
45
45
40
42
56
38
63
27
43
54
39
30
28
36
60

Medium Clouds (% Sky Obscured)

0
11
50
50
47
42
51
50
47
48
57
88
92
88
86
83
93
89
86
85
80
69
64
66

High Clouds (% Sky Obscured)

2
52
100
71
93
62
90
19
47
43
65
100
73
69
24
30
35
3
5
30
6
33
10
45

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
1
3
8
13
20
30
35
36
33
12
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
1
2
3
4
3
13
22
18
8
11
9
10
9
9
29
19
28
31
24
27
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
5
2
1
1
1
1
1
-0
-1
-0
1
6
8
9
8
10
10
9
10
10
9
8
8

Dew Point (°C)

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

Relative Humidity (%)

96
96
94
96
94
96
96
94
93
93
94
93
90
87
72
60
56
53
56
60
58
59
70
76

Pressure (mb)

1011
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1012
1012
1013
1013
1013
1013
1014
1014

Ozone (du)

357
358
359
361
363
364
363
364
362
362
361
362
363
363
365
366
366
368
367
365
364
363
362
362

Monday 21

Third Quarter 37%

04:08

13:32

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
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 06:21, Set: 20:23, Transit: 13:22. Moon - Rise: 04:08, Set: 13:32. Civil Dark: 20:56 - 05:48. Nautical Dark: 21:35 - 05:07. Astro Dark: 22:21 - 04:22

Total Clouds (% Sky Obscured)

84
85
81
77
74
70
71
69
62
51
43
55
64
77
79
82
84
84
84
85
90
95
100
100

Low Clouds (% Sky Obscured)

56
69
67
62
61
58
56
50
49
44
40
52
61
75
74
73
72
60
49
42
47
52
58
61

Medium Clouds (% Sky Obscured)

69
71
64
56
49
51
56
57
53
51
43
42
41
38
41
61
57
62
51
60
69
94
100
68

High Clouds (% Sky Obscured)

26
34
7
56
42
17
35
14
57
51
43
42
43
45
47
41
43
44
49
51
53
54
59
76

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

Precipitation Probability (%)

15
4
6
7
5
7
34
48
60
65
65
48
41
22
24
25
22
28
28
30
30
24
20
16

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
6
5
4
4
3
4
4
4
4
5
5
7
9
11
10
10
11
11
12
11
11
10
9

Dew Point (°C)

5
5
4
3
3
3
3
3
3
4
5
5
7
9
11
11
11
10
10
11
11
10
10
9

Relative Humidity (%)

79
82
84
83
85
85
85
88
91
93
94
98
96
96
96
93
93
89
87
89
90
90
91
90

Pressure (mb)

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

Ozone (du)

361
361
360
361
364
364
365
365
363
362
360
359
360
361
360
360
359
359
359
358
357
357
358
359

Tuesday 22

Waning Crescent 27%

04:30

14:52

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
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 06:19, Set: 20:25, Transit: 13:22. Moon - Rise: 04:30, Set: 14:52. Civil Dark: 20:58 - 05:46. Nautical Dark: 21:37 - 05:05. Astro Dark: 22:23 - 04:19

Total Clouds (% Sky Obscured)

100
100
99
98
97
96
95
94
95
97
99
89
90
89
89
89
90
88
88
91
81
69
57
62

Low Clouds (% Sky Obscured)

58
64
72
77
84
83
85
85
88
92
95
76
80
83
80
77
74
66
62
58
56
52
47
46

Medium Clouds (% Sky Obscured)

65
69
76
76
29
25
23
21
78
90
95
83
80
79
79
78
76
77
78
77
59
41
29
37

High Clouds (% Sky Obscured)

89
100
94
88
82
68
54
45
50
50
60
10
15
25
25
30
30
45
65
65
50
37
24
21

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

Precipitation Probability (%)

23
27
27
25
20
26
27
32
36
30
38
19
26
35
41
54
61
55
50
55
53
62
68
61

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

2
2
2
2
2
2
1
1
1
1
1
1
1
2
3
2
2
2
2
3
3
3
3
3

Chance of Frost

Temperature (°C)

10
9
8
8
7
7
8
7
7
7
7
8
8
9
10
11
10
11
12
12
13
12
11
10

Feels Like (°C)

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

Dew Point (°C)

8
8
7
7
7
7
7
7
6
6
7
7
8
8
9
9
8
8
8
7
7
7
7
8

Relative Humidity (%)

91
93
95
94
96
94
96
96
96
94
96
94
95
93
91
88
85
83
76
71
65
72
80
87

Pressure (mb)

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

Ozone (du)

360
361
362
361
362
362
362
362
361
360
362
363
364
364
365
365
366
367
368
369
370
370
369
368

Wednesday 23

Waning Crescent 17%

04:48

16:13

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
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 06:18, Set: 20:26, Transit: 13:22. Moon - Rise: 04:48, Set: 16:13. Civil Dark: 20:59 - 05:44. Nautical Dark: 21:39 - 05:03. Astro Dark: 22:25 - 04:17

Total Clouds (% Sky Obscured)

67
77
85
90
96
96
97
98
99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

45
46
56
64
76
81
85
90
90
90
89
89
90
91
93
95
97
95
93
92
94
93
93
95

Medium Clouds (% Sky Obscured)

46
59
66
71
77
84
87
90
95
98
100
89
75
56
69
83
100
97
96
92
91
93
100
100

High Clouds (% Sky Obscured)

14
14
18
22
26
26
29
36
28
24
25
50
75
100
100
100
100
90
73
52
64
81
100
99

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

44
27
50
45
48
58
60
69
89
95
95
95
95
95
95
95
95
95
95
76
74
68
55
75

Precipitation Amount (mm)

0
0
0.3
0
0.2
0.3
0.2
0.2
0.5
0.5
0.5
0.8
1
0.8
0.9
0.9
0.9
0.8
0.5
0.2
0.3
0.2
0
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

9
9
7
7
7
7
7
7
7
7
7
7
7
8
8
8
8
8
7
8
8
8
8
7

Feels Like (°C)

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

Dew Point (°C)

7
7
6
6
6
6
7
6
7
6
6
6
6
7
8
8
8
7
7
8
8
7
7
7

Relative Humidity (%)

88
90
91
93
94
96
98
96
98
96
96
94
93
94
95
95
95
94
94
96
96
95
96
96

Pressure (mb)

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

Ozone (du)

367
365
364
364
364
364
364
364
364
364
364
364
362
361
359
358
356
355
356
357
359
359
360
360

Thursday 24

Waning Crescent 9%

05:06

17:36

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

Sun - Rise: 06:16, Set: 20:27, Transit: 13:22. Moon - Rise: 05:06, Set: 17:36. Civil Dark: N/A - 05:42. Nautical Dark: 21:41 - 05:01. Astro Dark: 22:27 - 04:14

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
98
97
98
98
99
98
98
98
97
96
95

Low Clouds (% Sky Obscured)

96
99
97
95
92
93
93
94
95
95
96
96
96
97
96
95
94

Medium Clouds (% Sky Obscured)

100
100
100
100
99
97
95
93
93
94
95
97
98
98
94
87
81

High Clouds (% Sky Obscured)

91
73
54
42
45
45
50
70
80
80
85
85
85
85
85
80
85

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

91
95
95
95
95
95
95
95
95
95
95
91
86
83
71
57
39

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

5
5
4
4
4
4
4
4
4
4
4
4
3
3
4
4
4

Chance of Frost

Temperature (°C)

7
7
7
7
6
6
6
6
6
6
7
7
8
8
8
9
9

Feels Like (°C)

4
4
4
4
4
4
4
4
3
4
4
4
6
7
7
7
7

Dew Point (°C)

7
6
6
6
6
6
6
6
6
6
6
7
7
8
8
8
8

Relative Humidity (%)

96
94
96
96
96
96
98
98
98
98
98
98
98
96
95
95
93

Pressure (mb)

1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018
1018

Ozone (du)

361
363
364
363
362
361
361
360
360
360
359
359
358
357
357
356
355

Forecast for Gfell, Bezirk Pfäffikon, Switzerland (47.38,8.93)

Generated: 18/04/25 21:19:14. Forecast: 18/04/25 to 24/04/25. Timezone: UTC+2.00