Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 10

Third Quarter 40%

04:03

11:09

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 OK
05 OK
06 OK
07 OK
08 Bad
09 OK
10 OK

Sun - Rise: 06:16, Set: 19:48, Transit: 13:03. Moon - Rise: 04:03, Set: 11:09. Civil Dark: 20:22 - 05:42. Nautical Dark: 21:03 - 05:01. Astro Dark: 21:48 - 04:15

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
91
81
76
77
77
100
100
100
100
100
43
31
33
37
39
42
44

Low Clouds (% Sky Obscured)

62
82
87
92
93
100
100
83
60
52
56
59
59
64
38
30
24
11
26
33
37
39
35
39

Medium Clouds (% Sky Obscured)

100
99
100
100
100
95
56
13
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
0

High Clouds (% Sky Obscured)

100
100
100
100
78
4
2
0
0
0
0
3
100
100
100
100
100
29
14
7
6
7
7
12

ISS Passover

Visibility (miles)

3
0
0
0
0
0
0
3
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
3
0
0
0

Precipitation Type

Snow
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 (%)

49
5
0
21
24
11
9
2
1
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.5
0.6
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
4
4
5
5
4
4
4
4
5
5
4
3
3
3
2
1
1
2
2
2
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
88
94
94
96
96
96
94
91
93
91
93
93
93
96
94
96
94
96
94
94
88
80
71

Pressure (mb)

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

Ozone (du)

403
403
406
410
416
422
423
422
423
421
416
411
407
404
399
396
392
390
388
383
380
379
376
374

Saturday 11

Waning Crescent 30%

04:24

12:23

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

Sun - Rise: 06:14, Set: 19:50, Transit: 13:03. Moon - Rise: 04:24, Set: 12:23. Civil Dark: 20:23 - 05:40. Nautical Dark: 21:05 - 04:58. Astro Dark: 21:50 - 04:13

Total Clouds (% Sky Obscured)

27
19
8
10
9
8
11
4
4
6
7
1
66
100
97
100
94
35
72
73
92
99
99
99

Low Clouds (% Sky Obscured)

27
19
0
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
12
7
20

Medium Clouds (% Sky Obscured)

2
0
0
0
0
0
5
0
0
3
4
0
0
0
0
0
37
35
40
66
89
98
90
97

High Clouds (% Sky Obscured)

7
7
7
7
7
4
4
4
4
4
4
1
65
100
97
100
84
11
52
13
23
54
70
53

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
2
12
25

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

Chance of Frost

Temperature (°C)

7
9
10
11
12
13
12
12
11
9
8
7
6
6
5
5
4
4
3
3
3
4
6
7

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
56
50
44
40
39
40
43
51
56
59
60
64
67
71
72
73
73
74
72
70
60
52
48

Pressure (mb)

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

Ozone (du)

373
372
371
369
366
363
362
363
363
363
366
367
369
368
367
364
363
363
365
365
364
366
366
367

Sunday 12

Waning Crescent 21%

04:41

13:39

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:12, Set: 19:51, Transit: 13:02. Moon - Rise: 04:41, Set: 13:39. Civil Dark: 20:25 - 05:38. Nautical Dark: 21:07 - 04:56. Astro Dark: 21:52 - 04:10

Total Clouds (% Sky Obscured)

96
96
96
98
98
98
99
100
98
100
100
100
100
90
96
100
100
100
100
100
88
90
92
95

Low Clouds (% Sky Obscured)

45
49
55
55
69
73
72
66
63
63
67
62
39
35
35
30
3
15
19
22
32
40
45
45

Medium Clouds (% Sky Obscured)

56
91
83
89
93
92
97
99
95
95
88
70
80
43
92
82
82
63
56
45
28
59
63
58

High Clouds (% Sky Obscured)

68
39
39
55
71
85
80
60
12
91
94
100
100
86
93
100
100
100
100
100
88
82
81
81

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 (%)

35
26
14
8
2
0
1
2
1
2
2
2
0
0
3
9
29
36
14
5
1
1
1
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
7
5
5
4
5
5
5
4
3
3
4
4
5
5
5
6
8
8
10
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

46
45
52
60
63
63
65
65
65
63
69
70
73
74
73
73
77
81
82
78
75
67
59
56

Pressure (mb)

1017
1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1015
1015
1015
1014
1014
1013
1013
1013
1013
1013
1013
1012

Ozone (du)

369
371
371
370
369
367
368
366
363
362
362
362
361
361
360
361
363
364
365
366
366
367
365
360

Monday 13

Waning Crescent 13%

04:56

14:57

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:10, Set: 19:53, Transit: 13:02. Moon - Rise: 04:56, Set: 14:57. Civil Dark: 20:27 - 05:35. Nautical Dark: 21:09 - 04:53. Astro Dark: 21:55 - 04:07

Total Clouds (% Sky Obscured)

88
82
75
81
89
96
100
100
100
97
93
89
87
85
75
88
92
98
94
90
87
89
92
95

Low Clouds (% Sky Obscured)

45
40
40
28
27
23
20
35
35
30
21
2
2
2
2
17
25
30
33
41
52
59
66
74

Medium Clouds (% Sky Obscured)

79
64
46
66
57
83
62
77
73
75
76
70
61
39
42
50
78
74
87
83
74
77
83
86

High Clouds (% Sky Obscured)

72
64
64
76
72
77
100
100
100
92
84
75
75
71
54
74
54
77
66
56
40
31
36
33

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
7
5

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
Very Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
9
10
8
27
36
36
50
60
78

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
0.3
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
15
17
19
19
18
18
17
16
15
14
14
13
13
12
12
12
11
11
11
10
10
10
10

Feels Like (°C)

9
10
12
14
13
13
13
13
12
11
10
9
9
9
8
9
9
9
8
8
8
8
7
7

Dew Point (°C)

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

Relative Humidity (%)

56
53
49
51
48
49
51
54
55
53
54
58
60
66
71
73
75
75
76
81
88
91
90
91

Pressure (mb)

1012
1011
1010
1010
1009
1009
1009
1009
1009
1009
1010
1010
1010
1010
1010
1010
1011
1011
1011
1012
1012
1013
1013
1014

Ozone (du)

358
356
356
359
359
361
362
363
363
361
359
358
358
359
363
365
365
366
366
368
371
371
372
372

Tuesday 14

Waning Crescent 12%

05:10

16:16

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:07, Set: 19:54, Transit: 13:02. Moon - Rise: 05:10, Set: 16:16. Civil Dark: 20:28 - 05:33. Nautical Dark: 21:10 - 04:51. Astro Dark: 21:57 - 04:04

Total Clouds (% Sky Obscured)

96
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

80
85
91
93
97
100
100
100
99
100
100
100
96
93
89
90
91
91
91
88
86
89
93
96

Medium Clouds (% Sky Obscured)

89
94
99
83
91
92
92
93
95
97
99
100
100
100
100
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

38
59
79
39
44
40
33
34
26
46
69
89
78
68
71
84
92
100
100
100
100
79
55
33

ISS Passover

Visibility (miles)

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

Light Rain
Light Rain
Light Rain
None
None
None
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
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

88
79
71
52
52
57
91
95
95
95
91
95
95
95
93
95
95
76
75
76
78
73
71
70

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
91
91
90
91
93
93
93
95
95
93
93
93
94
94
94
93
94
94
94
94
93
94

Pressure (mb)

1014
1014
1015
1015
1015
1016
1016
1016
1017
1017
1018
1018
1019
1019
1019
1019
1019
1020
1020
1020
1020
1021
1021
1021

Ozone (du)

372
375
376
377
377
374
372
376
378
379
382
383
384
385
386
387
389
391
393
394
395
397
399
401

Wednesday 15

Waning Crescent 6%

05:24

17:36

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:05, Set: 19:56, Transit: 13:02. Moon - Rise: 05:24, Set: 17:36. Civil Dark: 20:30 - 05:31. Nautical Dark: 21:12 - 04:49. Astro Dark: 21:59 - 04:01

Total Clouds (% Sky Obscured)

99
98
96
95
94
91
89
82
77
77
80
79
76
76
73
66
61
56
69
78
82
85
88
90

Low Clouds (% Sky Obscured)

95
94
94
89
84
79
74
65
55
44
37
25
24
18
22
23
28
34
35
35
35
39
45
56

Medium Clouds (% Sky Obscured)

98
96
96
95
93
91
89
82
77
73
63
58
45
32
16
13
13
12
11
10
8
5
2
0

High Clouds (% Sky Obscured)

20
10
35
35
25
30
20
20
20
15
20
15
15
10
10
9
8
10
24
39
53
51
49
45

ISS Passover

Visibility (miles)

7
7
7
7
8
8
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
None
None
None
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

62
54
47
46
51
59
54
46
30
28
22
9
9
6
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
91
93
91
91
93
94
95
93
93
93
91
91
90
91
90
91
91
91
91
90
90
85
83

Pressure (mb)

1022
1022
1022
1022
1022
1021
1021
1021
1022
1022
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023

Ozone (du)

403
404
405
407
408
409
410
410
410
411
411
412
413
415
417
419
413
407
401
396
390
385
384
383

Thursday 16

Waning Crescent 2%

05:40

19:00

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
06 Bad
07 Bad

Sun - Rise: 06:03, Set: 19:57, Transit: 13:01. Moon - Rise: 05:40, Set: 19:00. Civil Dark: 20:32 - 05:29. Nautical Dark: 21:14 - 04:46. Astro Dark: 22:02 - 03:58

Total Clouds (% Sky Obscured)

83
78
72
72
73
71
73
76
79
68
57
52
69
80
83
81
80
79
85
89
90

Low Clouds (% Sky Obscured)

47
42
37
29
22
19
22
25
25
27
15
3
3
2
2
2
2
2
2
2
2

Medium Clouds (% Sky Obscured)

12
30
45
42
44
49
35
25
26
28
25
17
20
20
19
25
23
18
15
17
22

High Clouds (% Sky Obscured)

30
12
0
2
5
8
11
9
8
7
6
9
39
65
83
81
80
79
66
36
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

Fog (%)

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

Precipitation Probability (%)

1
3
3
8
10
11
10
7
1
1
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)

4
4
4
4
4
4
4
3
3
3
3
3
3
3
4
4
4
3
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
8
8
9
16
16
15
16
16
16
11
10
10
10
9
9
7
6
6
6
6

Dew Point (°C)

8
8
8
8
7
7
7
7
7
7
7
6
6
6
6
5
5
5
5
5
6

Relative Humidity (%)

79
71
64
57
56
56
55
58
61
66
69
72
74
77
78
78
81
82
84
81
80

Pressure (mb)

1023
1022
1022
1022
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023

Ozone (du)

382
379
376
372
367
362
357
355
353
351
354
356
358
359
359
359
359
359
359
361
362

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

Generated: 10/04/26 11:21:42. Forecast: 10/04/26 to 16/04/26. Timezone: UTC+2.00