Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 5

Waning Gibbous 85%

00:15

08:20

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

Sun - Rise: 06:53, Set: 20:01, Transit: 13:28. Moon - Rise: 00:15, Set: 08:20. Civil Dark: 20:32 - 06:22. Nautical Dark: 21:10 - 05:44. Astro Dark: 21:50 - 05:04

Total Clouds (% Sky Obscured)

15
53
63
100
100
93
100
100
100
100
92
78
71
78
50
44
55
71
77
77
75
39
35
74

Low Clouds (% Sky Obscured)

3
3
0
3
0
3
6
25
84
76
27
19
62
56
42
43
47
66
73
73
12
32
33
10

Medium Clouds (% Sky Obscured)

15
26
55
100
99
88
100
100
100
71
31
56
23
43
21
0
10
0
0
0
0
3
0
48

High Clouds (% Sky Obscured)

15
53
63
100
100
66
86
100
100
100
70
28
4
3
0
0
4
0
36
38
70
11
4
74

ISS Passover

Visibility (miles)

9
9
9
5
8
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
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

2
3
53
61
60
50
51
56
70
31
11
7
1
0
1
0
0
0
0
0
0
0
0
1

Precipitation Amount (mm)

0
0
0
0.4
0.3
0
0
0.2
0.8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

12
13
12
9
5
3
4
3
3
3
3
2
2
2
1
1
2
1
1
1
2
1
2
3

Chance of Frost

Temperature (°C)

20
19
18
17
14
13
12
11
11
11
10
10
9
9
8
8
8
10
12
13
15
17
18
19

Feels Like (°C)

18
17
16
14
13
12
11
10
9
10
9
9
8
8
7
8
8
10
11
13
14
16
18
19

Dew Point (°C)

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

Relative Humidity (%)

47
61
67
78
92
90
92
93
96
95
96
96
96
96
96
96
95
91
87
84
74
64
57
53

Pressure (mb)

1020
1020
1020
1021
1022
1023
1024
1025
1026
1026
1027
1027
1027
1027
1027
1028
1028
1028
1028
1027
1027
1026
1025
1025

Ozone (du)

350
350
351
348
350
351
353
355
359
360
364
369
374
370
369
367
366
366
366
365
364
364
363
362

Monday 6

Waning Gibbous 78%

01:20

08:57

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

Sun - Rise: 06:51, Set: 20:02, Transit: 13:27. Moon - Rise: 01:20, Set: 08:57. Civil Dark: 20:34 - 06:20. Nautical Dark: 21:12 - 05:42. Astro Dark: 21:52 - 05:01

Total Clouds (% Sky Obscured)

69
19
20
17
15
45
18
22
15
17
19
20
35
41
46
51
41
33
19
0
0
3
4
4

Low Clouds (% Sky Obscured)

5
10
9
5
9
8
11
7
7
2
5
8
19
27
37
45
33
29
14
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
2
10
4
0
0
17
2
6
2
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

69
8
13
10
5
37
5
6
3
6
9
9
14
11
9
8
7
5
2
0
0
2
2
2

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
49
81
81
80
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
0
0
0
1
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
3
2
2
1
1
2
2
2
2
2
2
2
2
2
2
2
1
1
1
1
2
2
4

Chance of Frost

Temperature (°C)

19
19
19
17
15
14
12
10
9
9
8
7
7
6
6
5
6
8
12
14
17
19
21
22

Feels Like (°C)

18
18
19
18
17
15
12
11
10
9
8
8
7
7
5
5
6
8
12
15
19
21
23
23

Dew Point (°C)

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

Relative Humidity (%)

51
49
50
63
73
78
83
88
91
93
95
96
96
96
96
98
96
87
79
68
61
54
50
46

Pressure (mb)

1024
1024
1024
1024
1024
1024
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1024
1023
1022
1022
1021

Ozone (du)

361
360
361
361
361
361
361
360
359
358
358
359
359
360
360
361
362
361
361
361
361
362
362
363

Tuesday 7

Waning Gibbous 69%

02:18

09:45

16 Good
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 Good
14 Good
15 Good

Sun - Rise: 06:49, Set: 20:04, Transit: 13:27. Moon - Rise: 02:18, Set: 09:45. Civil Dark: 20:35 - 06:18. Nautical Dark: 21:13 - 05:39. Astro Dark: 21:54 - 04:59

Total Clouds (% Sky Obscured)

5
4
5
6
7
3
6
3
3
0
3
3
6
4
4
4
0
0
0
0
0
0
0
0

Low 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

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)

2
2
2
5
5
2
4
2
2
0
2
2
3
2
2
2
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 (%)

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
1
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)

4
4
3
3
2
2
2
3
3
3
3
3
3
3
3
3
3
3
4
6
7
7
8
8

Chance of Frost

Temperature (°C)

22
22
21
20
17
16
14
13
11
10
9
8
8
7
6
6
6
9
11
13
15
17
19
19

Feels Like (°C)

23
23
23
21
19
17
15
13
12
11
10
9
8
7
7
6
6
8
10
12
13
15
18
18

Dew Point (°C)

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

Relative Humidity (%)

44
44
49
61
71
78
89
93
93
95
95
95
94
94
93
90
84
73
66
60
53
49
44
41

Pressure (mb)

1021
1020
1020
1020
1021
1022
1023
1023
1023
1024
1024
1024
1025
1025
1025
1025
1025
1025
1025
1025
1024
1024
1023
1022

Ozone (du)

363
364
364
364
364
364
364
366
368
368
368
368
368
368
368
369
368
367
366
366
367
369
370
372

Wednesday 8

Waning Gibbous 60%

03:06

10:43

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

Sun - Rise: 06:47, Set: 20:05, Transit: 13:27. Moon - Rise: 03:06, Set: 10:43. Civil Dark: 20:37 - 06:16. Nautical Dark: 21:15 - 05:37. Astro Dark: 21:56 - 04:56

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
3
10
18
25
38
47
57
60
63
58
57
53
69
64
94

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
4
6
10
12
15
18
12
6
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
4
7
10
27
40
50
40
50
50
42
30
17
27
36

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
5
8
11
31
47
57
60
63
58
57
53
69
53
61

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
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
3
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)

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

Chance of Frost

Temperature (°C)

20
20
19
17
15
13
11
10
9
8
7
6
5
5
4
4
4
7
10
12
15
17
19
19

Feels Like (°C)

18
18
18
15
14
12
11
9
8
7
6
5
5
4
4
3
4
6
8
10
12
14
15
16

Dew Point (°C)

6
7
8
9
9
8
8
6
5
5
3
3
2
2
2
2
1
1
3
3
3
3
2
3

Relative Humidity (%)

41
42
49
58
65
72
79
78
78
78
77
78
79
82
86
88
79
66
60
52
45
38
33
33

Pressure (mb)

1022
1022
1022
1022
1023
1024
1025
1025
1025
1025
1026
1026
1026
1026
1027
1027
1027
1027
1026
1026
1025
1024
1024
1023

Ozone (du)

373
374
376
380
378
374
372
374
378
379
379
377
377
379
379
378
376
377
380
382
387
389
389
389

Thursday 9

Waning Gibbous 50%

03:45

11:48

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

Sun - Rise: 06:45, Set: 20:06, Transit: 13:27. Moon - Rise: 03:45, Set: 11:48. Civil Dark: 20:38 - 06:14. Nautical Dark: 21:16 - 05:35. Astro Dark: 21:58 - 04:54

Total Clouds (% Sky Obscured)

93
95
96
98
99
99
98
56
47
50
53
50
48
58
65
76
76
76
76
84
91
99
97
96

Low Clouds (% Sky Obscured)

0
0
0
0
6
11
17
21
26
30
34
34
35
39
35
32
30
36
39
36
33
27
25
24

Medium Clouds (% Sky Obscured)

46
46
38
30
34
48
90
22
14
5
3
1
0
0
0
5
5
0
0
0
5
5
5
5

High Clouds (% Sky Obscured)

40
55
72
86
92
95
93
56
47
50
53
50
48
58
65
76
76
76
76
84
91
99
97
96

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

Precipitation Probability (%)

0
10
11
8
15
13
16
25
34
52
95
71
78
65
49
22
28
18
5
6
4
6
2
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
1
0.3
0.6
0.3
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
20
18
16
14
13
11
10
9
9
8
8
8
7
7
8
8
10
11
13
14
15
16
16

Feels Like (°C)

15
16
15
13
12
11
9
8
9
8
8
8
8
8
7
7
7
7
6
6
6
6
6
15

Dew Point (°C)

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

Relative Humidity (%)

33
39
46
55
68
72
75
78
82
84
84
85
87
85
82
81
78
68
59
52
46
42
38
37

Pressure (mb)

1023
1023
1023
1023
1024
1024
1025
1025
1025
1026
1025
1026
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025
1024
1024

Ozone (du)

388
387
387
388
387
387
385
384
384
384
381
381
380
379
379
379
378
377
376
374
374
373
372
371

Friday 10

Third Quarter 40%

04:15

12:59

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

Sun - Rise: 06:43, Set: 20:08, Transit: 13:26. Moon - Rise: 04:15, Set: 12:59. Civil Dark: 20:40 - 06:12. Nautical Dark: 21:18 - 05:33. Astro Dark: 21:59 - 04:51

Total Clouds (% Sky Obscured)

94
95
97
99
88
76
65
57
50
47
39
34
25
23
21
17
28
39
49
54
59
64
50
35

Low Clouds (% Sky Obscured)

22
18
14
12
12
15
17
11
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

5
5
5
26
23
13
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

94
92
87
82
61
42
26
30
27
28
26
20
16
16
16
15
24
35
46
40
33
28
24
17

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
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)

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

Chance of Frost

Temperature (°C)

16
16
15
14
12
11
9
8
7
7
6
6
5
5
5
5
6
8
11
13
15
18
20
20

Feels Like (°C)

15
15
16
17
17
9
9
9
8
8
7
5
5
5
4
4
4
7
7
8
9
10
12
21

Dew Point (°C)

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

Relative Humidity (%)

36
35
43
53
64
71
78
87
88
90
91
93
93
93
91
90
90
77
66
57
50
44
39
38

Pressure (mb)

1023
1023
1022
1022
1022
1023
1023
1024
1023
1023
1023
1023
1023
1022
1022
1022
1022
1021
1021
1020
1019
1018
1017
1016

Ozone (du)

370
369
368
366
365
365
364
364
364
364
363
363
363
364
364
365
366
366
366
365
366
366
366
366

Saturday 11

Waning Crescent 30%

04:39

14:12

16 OK
17 Good
18 Good
19 Good
20 Good
21 Good
22 OK
23 OK
00 Good
01 Good
02 Good
03 Good
04 Good
05 Good
06 Good
07 Good

Sun - Rise: 06:41, Set: 20:09, Transit: 13:26. Moon - Rise: 04:39, Set: 14:12. Civil Dark: 20:41 - 06:10. Nautical Dark: 21:20 - 05:31. Astro Dark: 22:01 - 04:49

Total Clouds (% Sky Obscured)

19
16
10
4
9
13
19
13
8
2
1
1
0
1
2
3

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

12
10
8
4
9
13
19
13
8
1
1
1
0
1
2
3

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
21
19
17
14
13
12
10
9
9
8
7
6
5
5
4

Feels Like (°C)

20
20
21
21
21
14
14
14
13
12
11
8
8
7
7
6

Dew Point (°C)

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

Relative Humidity (%)

37
36
45
56
69
75
81
88
90
91
93
91
93
93
89
86

Pressure (mb)

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

Ozone (du)

367
367
367
367
367
367
368
368
370
372
373
374
376
377
378
380

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

Generated: 05/04/26 15:51:12. Forecast: 05/04/26 to 11/04/26. Timezone: UTC+2.00