Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 24

First Quarter 57%

13:13

03:37

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

Sun - Rise: 05:48, Set: 20:10, Transit: 13:00. Moon - Rise: 13:13, Set: 03:37. Civil Dark: 20:46 - 05:12. Nautical Dark: 21:30 - 04:27. Astro Dark: 22:22 - 03:35

Total Clouds (% Sky Obscured)

34
33
21
4
6
8
6
7
8
8
29
36
14
9
12
17
15
10
8
8
7
13
47
85

Low Clouds (% Sky Obscured)

3
13
0
0
0
0
0
0
0
0
0
0
10
5
12
10
15
6
0
0
4
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)

6
4
8
4
6
8
4
7
7
7
27
36
8
4
5
8
5
4
7
8
6
11
44
85

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)

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

Chance of Frost

Temperature (°C)

17
18
17
16
15
13
12
10
9
9
9
8
7
7
7
6
6
7
9
11
13
14
16
18

Feels Like (°C)

14
15
14
13
12
11
10
9
8
9
9
6
5
6
7
5
6
6
8
9
10
12
14
14

Dew Point (°C)

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

Relative Humidity (%)

36
36
40
44
50
57
66
73
78
81
82
84
87
87
88
88
88
87
78
67
46
39
36
31

Pressure (mb)

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

Ozone (du)

354
355
356
357
359
360
360
360
361
361
362
365
371
379
385
390
389
390
391
390
388
387
390
393

Saturday 25

Waxing Gibbous 68%

No Rise

03:54

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

Sun - Rise: 05:46, Set: 20:12, Transit: 12:59. Moon - Rise: No Rise, Set: 03:54. Civil Dark: 20:47 - 05:10. Nautical Dark: 21:32 - 04:25. Astro Dark: 22:25 - 03:32

Total Clouds (% Sky Obscured)

100
33
6
0
0
3
6
14
25
28
20
0
15
26
31
15
3
8
16
18
7
7
13
6

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
1
1
0
15
26
31
15
1
8
16
18
3
2
11
0

Medium Clouds (% Sky Obscured)

0
0
6
0
0
0
0
14
25
28
20
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
23
1
0
0
3
6
0
0
0
3
0
0
0
0
0
0
0
0
2
3
3
4
5

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)

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

Chance of Frost

Temperature (°C)

19
20
21
20
19
18
16
14
13
12
12
11
10
9
8
6
5
6
6
7
9
11
12
12

Feels Like (°C)

14
15
17
18
16
16
15
12
12
11
10
9
8
7
6
3
2
3
3
4
6
7
9
9

Dew Point (°C)

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

Relative Humidity (%)

30
28
27
31
37
49
57
60
64
67
68
70
72
74
77
71
72
71
63
57
53
49
46
42

Pressure (mb)

1015
1014
1014
1013
1013
1013
1014
1015
1015
1015
1015
1016
1016
1017
1018
1020
1021
1022
1023
1024
1025
1025
1025
1025

Ozone (du)

396
391
381
378
377
378
379
378
380
384
385
385
385
383
384
385
384
386
386
384
383
383
383
383

Sunday 26

Waxing Gibbous 78%

14:31

04:08

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

Sun - Rise: 05:44, Set: 20:13, Transit: 12:59. Moon - Rise: 14:31, Set: 04:08. Civil Dark: 20:49 - 05:08. Nautical Dark: 21:34 - 04:22. Astro Dark: 22:27 - 03:29

Total Clouds (% Sky Obscured)

6
8
16
48
80
76
8
57
62
100
71
12
74
95
34
36
47
10
4
9
11
11
11
13

Low Clouds (% Sky Obscured)

1
1
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
15
1
9
25
0
3
27
10
4
3
0
0
0
0

High Clouds (% Sky Obscured)

4
5
11
24
77
76
5
57
62
100
71
9
74
80
34
36
47
4
1
5
9
8
9
10

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)

11
10
10
10
10
8
6
5
4
3
3
4
4
3
2
2
2
2
2
3
4
5
5
5

Chance of Frost

Temperature (°C)

14
14
14
14
14
13
11
10
9
8
8
7
7
6
5
4
4
4
6
8
10
12
13
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

40
39
38
38
40
45
51
54
53
50
49
50
52
53
52
53
53
51
45
40
36
35
33
32

Pressure (mb)

1024
1024
1024
1024
1024
1024
1025
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1025
1024

Ozone (du)

382
381
383
384
387
386
388
390
393
394
394
394
393
395
397
399
401
401
399
398
397
396
394
394

Monday 27

Waxing Gibbous 86%

15:47

04:21

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

Sun - Rise: 05:42, Set: 20:15, Transit: 12:59. Moon - Rise: 15:47, Set: 04:21. Civil Dark: 20:51 - 05:06. Nautical Dark: 21:36 - 04:20. Astro Dark: 22:30 - 03:25

Total Clouds (% Sky Obscured)

38
66
65
71
82
93
95
98
100
100
100
75
63
67
67
72
93
74
72
83
71
76
76
72

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
3
6
9
13
16
18
18
18
17
22
26
28

Medium Clouds (% Sky Obscured)

0
0
0
50
50
45
50
54
51
67
83
75
63
67
67
70
93
74
69
65
62
74
76
72

High Clouds (% Sky Obscured)

32
61
50
64
77
93
93
97
100
100
67
50
36
24
9
30
52
74
72
77
63
53
29
7

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
1
1
1
7
9
7
16
16
8

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

Chance of Frost

Temperature (°C)

15
15
15
15
15
14
12
11
11
9
9
8
8
7
6
6
6
6
7
9
11
12
13
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

31
32
33
35
40
44
46
46
47
47
49
52
55
57
60
60
64
61
52
48
47
44
40
38

Pressure (mb)

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

Ozone (du)

398
400
400
399
397
395
395
396
399
400
400
401
403
405
407
408
409
410
413
414
414
412
412
411

Tuesday 28

Waxing Gibbous 92%

17:00

04:33

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

Sun - Rise: 05:40, Set: 20:16, Transit: 12:59. Moon - Rise: 17:00, Set: 04:33. Civil Dark: 20:52 - 05:04. Nautical Dark: 21:39 - 04:18. Astro Dark: 22:33 - 03:22

Total Clouds (% Sky Obscured)

70
64
96
83
49
49
41
30
23
15
9
1
2
2
3
13
19
32
30
33
35
42
40
47

Low Clouds (% Sky Obscured)

40
49
58
45
28
17
12
7
2
2
2
0
0
0
0
8
19
28
19
9
0
14
28
37

Medium Clouds (% Sky Obscured)

70
64
62
69
49
49
41
29
22
12
5
0
1
2
3
13
19
32
30
33
35
42
38
30

High Clouds (% Sky Obscured)

4
2
30
17
0
0
0
0
0
1
1
1
1
0
0
1
1
1
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 (%)

15
13
6
5
4
0
1
1
1
0
0
0
0
0
0
2
2
1
6
6
4
25
35
44

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)

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

Chance of Frost

Temperature (°C)

14
14
14
14
14
13
12
11
10
9
8
7
7
6
5
5
6
8
9
10
12
14
15
16

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

36
36
37
40
45
50
52
54
55
58
60
62
65
67
70
74
70
66
63
57
52
47
44
41

Pressure (mb)

1020
1019
1019
1019
1019
1019
1019
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

411
411
409
409
407
404
403
401
397
394
392
392
393
393
394
395
393
392
390
392
393
394
396
399

Wednesday 29

Waxing Gibbous 97%

18:12

04:46

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

Sun - Rise: 05:39, Set: 20:18, Transit: 12:59. Moon - Rise: 18:12, Set: 04:46. Civil Dark: 20:54 - 05:02. Nautical Dark: 21:41 - 04:15. Astro Dark: 22:36 - 03:19

Total Clouds (% Sky Obscured)

36
26
29
25
27
26
24
21
20
23
25
29
34
36
39
39
41
50
58
64
73
51
28
4

Low Clouds (% Sky Obscured)

35
26
29
25
25
21
15
8
1
1
1
1
1
1
2
8
14
20
18
15
11
6
3
0

Medium Clouds (% Sky Obscured)

16
12
9
6
6
7
9
12
10
10
11
10
8
8
6
10
11
16
26
33
40
30
18
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
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
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

45
49
52
44
28
17
16
10
0
0
0
0
0
0
0
0
0
0
1
2
3
4
3
0

Precipitation Amount (mm)

0.2
0.3
0.3
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)

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

Chance of Frost

Temperature (°C)

17
17
16
16
14
12
11
9
8
7
7
6
6
5
5
4
5
6
7
9
10
11
12
13

Feels Like (°C)

12
16
15
15
14
13
14
8
8
8
7
7
7
5
5
5
5
5
4
7
7
7
8
9

Dew Point (°C)

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

Relative Humidity (%)

39
39
38
39
42
47
52
57
63
69
69
70
71
72
73
75
74
71
67
59
51
44
39
33

Pressure (mb)

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

Ozone (du)

401
400
399
398
396
394
392
392
392
392
391
390
390
391
393
394
395
396
397
397
398
398
399
399

Thursday 30

Waxing Gibbous 99%

19:25

05:01

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

Sun - Rise: 05:37, Set: 20:19, Transit: 12:59. Moon - Rise: 19:25, Set: 05:01. Civil Dark: 20:56 - 05:00. Nautical Dark: 21:43 - 04:13. Astro Dark: 22:39 - 03:16

Total Clouds (% Sky Obscured)

13
25
42
46
45
43
55
68
65
51
27
19
13
11
15
19
29
38

Low Clouds (% Sky Obscured)

0
0
0
0
0
1
1
0
0
4
11
16
13
11
15
19
17
3

Medium Clouds (% Sky Obscured)

11
24
41
29
19
19
31
42
45
51
27
19
13
11
15
19
23
27

High Clouds (% Sky Obscured)

1
1
1
1
0
0
32
67
65
51
27
8
13
11
15
19
26
16

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
14
13
13
12
11
9
9
7
6
6
5
5
4
4
3
4
6

Feels Like (°C)

9
12
11
10
11
11
11
7
7
8
7
7
6
3
3
4
4
4

Dew Point (°C)

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

Relative Humidity (%)

27
28
30
31
37
45
54
57
58
61
62
65
67
67
68
69
66
61

Pressure (mb)

1024
1024
1024
1024
1024
1024
1025
1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1026

Ozone (du)

400
399
399
398
396
394
391
390
388
386
386
387
387
387
388
389
389
389

Forecast for Královské Vinohrady, Praha 2, Czech Republic (50.08,14.44)

Generated: 24/04/26 13:50:48. Forecast: 24/04/26 to 30/04/26. Timezone: UTC+2.00