Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 19

Waxing Crescent 32%

11:35

23:06

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

Sun - Rise: 05:15, Set: 21:02, Transit: 13:08. Moon - Rise: 11:35, Set: 23:06. Civil Dark: 21:43 - 04:34. Nautical Dark: 22:40 - 03:37. Astro Dark: 00:10 - 02:10

Total Clouds (% Sky Obscured)

60
82
99
100
100
100
93
81
55
64
40
22
30
32
25
24
28
29
29
35
79
83
42
44

Low Clouds (% Sky Obscured)

52
62
63
59
73
58
83
38
51
49
20
2
1
0
0
0
0
0
0
0
0
7
24
44

Medium Clouds (% Sky Obscured)

60
73
93
89
96
100
56
40
35
32
0
7
27
32
25
24
28
29
29
35
77
67
34
21

High Clouds (% Sky Obscured)

30
35
74
100
100
72
55
65
0
0
0
0
0
0
0
0
0
0
0
4
6
57
6
10

ISS Passover

Visibility (miles)

8
9
8
3
8
9
4
8
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
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
92
95
93
95
95
47
19
26
16
5
1
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
1.7
1.1
0.3
1.1
0.8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
19
18
18
19
18
18
20
20
21
21
21
20
18
17
15
15
14
13
13
12
12
13
14

Feels Like (°C)

20
19
18
16
18
16
16
17
18
19
19
19
17
17
17
16
15
14
13
12
13
11
11
14

Dew Point (°C)

16
15
12
14
16
11
12
16
14
13
11
10
11
12
12
12
12
11
10
10
10
10
10
10

Relative Humidity (%)

81
77
71
76
84
65
67
77
67
61
53
51
56
67
74
79
82
80
82
83
84
84
83
75

Pressure (mb)

1014
1014
1014
1014
1015
1015
1015
1016
1016
1016
1016
1016
1016
1017
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

337
336
338
340
347
352
353
356
361
365
368
366
361
359
358
358
362
373
366
365
365
362
362
364

Monday 20

Waxing Crescent 42%

12:50

23:20

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

Sun - Rise: 05:16, Set: 21:01, Transit: 13:08. Moon - Rise: 12:50, Set: 23:20. Civil Dark: 21:42 - 04:35. Nautical Dark: 22:38 - 03:39. Astro Dark: 00:06 - 02:15

Total Clouds (% Sky Obscured)

17
19
48
59
30
80
81
70
39
47
60
67
47
31
29
24
19
13
24
30
48
68
53
57

Low Clouds (% Sky Obscured)

17
19
46
25
23
3
25
13
0
33
0
0
0
0
9
5
0
0
0
0
0
0
0
37

Medium Clouds (% Sky Obscured)

1
15
43
36
9
59
48
46
26
8
30
49
42
31
27
24
19
12
23
27
30
22
18
14

High Clouds (% Sky Obscured)

1
1
0
0
6
38
62
39
13
28
43
36
5
1
0
0
0
0
3
4
27
47
34
34

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)

6
9
10
12
12
13
14
14
13
13
14
12
10
7
5
6
6
6
6
5
5
6
6
7

Chance of Frost

Temperature (°C)

16
18
18
19
20
21
21
21
21
21
21
20
19
17
15
14
14
14
13
13
13
12
12
14

Feels Like (°C)

15
17
17
17
18
17
17
17
18
18
17
17
15
15
15
14
14
14
14
13
12
11
11
13

Dew Point (°C)

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

Relative Humidity (%)

67
60
53
48
42
36
33
32
33
35
45
51
57
65
74
80
83
86
89
90
89
89
87
78

Pressure (mb)

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

Ozone (du)

363
360
359
357
357
357
359
360
360
360
357
357
357
359
363
362
362
361
360
361
361
361
361
361

Tuesday 21

First Quarter 53%

14:04

23:35

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

Sun - Rise: 05:17, Set: 21:00, Transit: 13:08. Moon - Rise: 14:04, Set: 23:35. Civil Dark: 21:40 - 04:37. Nautical Dark: 22:37 - 03:41. Astro Dark: 00:01 - 02:19

Total Clouds (% Sky Obscured)

41
44
47
34
63
94
90
85
95
98
87
100
68
76
44
51
41
38
26
12
50
21
44
64

Low Clouds (% Sky Obscured)

34
44
41
32
11
0
0
4
18
0
0
0
0
0
1
0
1
2
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

6
5
24
14
26
50
45
40
50
63
70
71
41
44
37
47
40
27
18
9
0
0
0
0

High Clouds (% Sky Obscured)

14
2
3
3
4
4
2
2
1
4
4
50
29
0
0
1
4
4
4
1
0
7
20
48

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

Chance of Frost

Temperature (°C)

16
17
18
20
21
22
22
21
21
21
21
21
20
18
17
15
14
14
14
13
12
12
13
14

Feels Like (°C)

13
15
16
17
18
19
17
18
18
19
19
19
19
16
14
15
14
13
13
12
12
9
12
14

Dew Point (°C)

10
10
9
7
7
7
7
9
9
10
10
9
10
9
7
7
7
8
6
5
5
3
7
8

Relative Humidity (%)

68
63
53
44
40
39
39
45
43
48
49
46
51
54
52
56
61
65
60
60
61
56
64
63

Pressure (mb)

1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021
1020

Ozone (du)

360
360
361
365
368
370
372
369
368
363
360
358
358
355
356
354
352
350
350
351
349
345
344
343

Wednesday 22

Waxing Gibbous 63%

15:17

23:54

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
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:19, Set: 20:58, Transit: 13:08. Moon - Rise: 15:17, Set: 23:54. Civil Dark: 21:39 - 04:38. Nautical Dark: 22:35 - 03:43. Astro Dark: 23:57 - 02:23

Total Clouds (% Sky Obscured)

67
99
67
70
99
99
100
100
100
98
96
94
96
98
100
96
91
88
93
96
100
83
66
42

Low Clouds (% Sky Obscured)

0
0
0
8
15
23
15
8
0
0
0
0
20
40
60
51
43
34
35
36
39
35
33
28

Medium Clouds (% Sky Obscured)

16
29
43
44
44
53
64
64
65
88
72
75
89
88
91
93
84
78
81
94
99
68
55
5

High Clouds (% Sky Obscured)

51
96
61
57
79
71
79
86
94
71
48
25
24
25
25
25
33
30
51
73
94
69
20
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
5
6
4
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
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
4
6
3
24
36
43
60
69
79
69
78
82
79
75
62

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.5
0.3
0.6
0.6
0.3
0.3
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
17
19
21
22
22
23
23
23
23
22
21
20
18
17
16
15
15
14
14
14
13
14
14

Feels Like (°C)

15
16
17
19
20
19
20
20
19
20
20
19
18
16
15
15
14
14
13
12
13
12
12
13

Dew Point (°C)

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

Relative Humidity (%)

55
48
44
38
36
33
31
31
31
35
47
49
52
58
63
66
72
75
73
76
89
95
93
92

Pressure (mb)

1020
1020
1019
1019
1018
1017
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1013
1013
1014

Ozone (du)

343
343
346
345
344
344
343
341
340
340
340
341
342
343
343
345
348
351
353
355
357
359
361
368

Thursday 23

Waxing Gibbous 72%

16:29

00:19

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
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 OK

Sun - Rise: 05:20, Set: 20:57, Transit: 13:08. Moon - Rise: 16:29, Set: 00:19. Civil Dark: 21:38 - 04:40. Nautical Dark: 22:33 - 03:45. Astro Dark: 23:53 - 02:27

Total Clouds (% Sky Obscured)

36
63
94
100
96
81
100
99
100
100
100
98
90
88
87
76
66
52
50
51
53
53
46
42

Low Clouds (% Sky Obscured)

36
52
69
77
83
81
84
79
64
65
56
51
71
68
64
53
42
36
49
51
53
53
46
42

Medium Clouds (% Sky Obscured)

26
48
65
65
65
69
70
84
100
89
77
51
72
74
77
64
49
36
43
50
48
29
13
0

High Clouds (% Sky Obscured)

22
43
65
48
30
14
10
8
40
56
41
66
1
1
2
1
1
0
0
0
0
10
19
29

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
7
6
6
9
9
6
7
8
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

53
46
40
74
93
95
95
95
95
86
65
55
50
41
30
29
25
20
23
28
32
25
17
3

Precipitation Amount (mm)

0
0
0
0.4
0.6
0.9
0.7
0.8
1
0.6
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
15
16
16
16
16
17
16
16
16
16
16
17
16
16
15
15
14
13
13
13
13
14
15

Feels Like (°C)

13
14
14
13
12
12
13
12
13
13
14
15
14
15
15
15
15
14
14
13
12
13
12
12

Dew Point (°C)

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

Relative Humidity (%)

82
70
62
56
55
50
47
61
62
72
81
77
82
83
85
86
87
86
86
87
87
89
86
84

Pressure (mb)

1014
1014
1014
1014
1014
1013
1013
1014
1014
1014
1014
1014
1014
1015
1016
1016
1016
1016
1017
1017
1017
1017
1018
1018

Ozone (du)

373
376
377
379
380
379
376
373
369
366
367
367
367
369
372
374
377
380
383
375
368
360
356
352

Friday 24

Waxing Gibbous 80%

17:38

00:52

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

Sun - Rise: 05:21, Set: 20:56, Transit: 13:08. Moon - Rise: 17:38, Set: 00:52. Civil Dark: 21:36 - 04:41. Nautical Dark: 22:31 - 03:47. Astro Dark: 23:49 - 02:31

Total Clouds (% Sky Obscured)

60
75
90
85
79
71
63
60
63
54
45
30
38
53
70
63
56
50
52
55
60
71
73
75

Low Clouds (% Sky Obscured)

51
56
62
59
54
50
44
46
44
40
42
30
38
39
36
34
29
28
20
10
0
0
0
0

Medium Clouds (% Sky Obscured)

8
16
28
26
27
19
20
17
16
18
18
18
15
9
6
8
11
15
14
10
6
4
2
0

High Clouds (% Sky Obscured)

22
21
26
34
43
53
36
18
1
0
0
0
22
43
64
54
47
40
49
55
60
66
68
66

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 (%)

11
17
21
25
28
31
24
17
4
3
1
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)

8
9
9
10
9
9
9
8
8
7
7
6
6
5
3
3
3
3
3
3
3
3
3
3

Chance of Frost

Temperature (°C)

16
17
18
19
19
20
21
21
22
22
21
21
20
18
17
15
14
14
13
13
12
12
14
15

Feels Like (°C)

12
15
15
15
15
16
16
19
19
20
19
20
20
18
18
17
17
16
15
13
12
13
12
12

Dew Point (°C)

13
13
12
12
12
12
11
11
11
10
11
12
12
11
10
10
9
9
9
9
9
9
9
9

Relative Humidity (%)

82
76
70
65
61
58
55
52
49
46
51
55
60
63
66
69
71
74
76
76
79
80
74
68

Pressure (mb)

1018
1018
1018
1018
1018
1018
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1014
1014
1014
1014

Ozone (du)

347
346
345
345
347
350
353
352
350
348
346
345
343
344
345
346
343
341
339
338
338
338
337
336

Saturday 25

Waxing Gibbous 87%

18:39

01:36

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
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 05:23, Set: 20:55, Transit: 13:08. Moon - Rise: 18:39, Set: 01:36. Civil Dark: 21:35 - 04:43. Nautical Dark: 22:29 - 03:49. Astro Dark: 23:45 - 02:34

Total Clouds (% Sky Obscured)

64
53
51
69
84
98
90
80
71
65
61
59
66
73
80
87
93
100

Low Clouds (% Sky Obscured)

0
0
0
1
2
3
2
1
0
1
2
2
5
6
14
14
18
15

Medium Clouds (% Sky Obscured)

6
12
20
28
35
47
49
50
50
43
35
28
38
48
59
69
78
86

High Clouds (% Sky Obscured)

58
53
51
69
84
98
74
46
26
28
34
32
20
17
18
43
71
98

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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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)

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

Chance of Frost

Temperature (°C)

17
19
21
23
24
25
25
26
26
27
26
25
24
23
21
20
19
19

Feels Like (°C)

12
17
18
19
19
20
21
25
24
24
25
25
26
22
22
21
21
21

Dew Point (°C)

10
11
11
11
11
10
9
9
9
9
10
10
11
10
10
9
9
9

Relative Humidity (%)

64
58
52
47
43
39
36
35
33
32
35
38
42
45
47
50
53
53

Pressure (mb)

1013
1013
1012
1012
1011
1011
1010
1009
1009
1008
1008
1008
1007
1008
1008
1008
1008
1008

Ozone (du)

336
336
336
337
338
339
340
340
341
341
341
340
340
340
340
340
340
341

Forecast for Letňany, Praha 18, Czech Republic (50.14,14.52)

Generated: 19/07/26 07:35:42. Forecast: 19/07/26 to 25/07/26. Timezone: UTC+2.00