Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 24

Waxing Gibbous 80%

17:34

00:44

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

Sun - Rise: 05:14, Set: 20:51, Transit: 13:02. Moon - Rise: 17:34, Set: 00:44. Civil Dark: 21:32 - 04:34. Nautical Dark: 22:28 - 03:39. Astro Dark: 23:50 - 02:19

Total Clouds (% Sky Obscured)

37
69
73
84
60
56
73
63
73
84
32
17
39
71
65
34
43
48
58
28
46
97
100
100

Low Clouds (% Sky Obscured)

37
35
32
45
44
38
26
34
37
52
32
6
0
0
0
0
11
20
0
22
20
13
5
0

Medium Clouds (% Sky Obscured)

37
41
48
41
33
29
47
31
41
51
0
8
16
2
2
2
2
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

37
52
73
40
3
0
0
0
0
0
0
2
20
60
54
28
40
41
51
10
33
95
100
100

ISS Passover

Visibility (miles)

9
8
8
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
0
0
7
14
1
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)

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

Chance of Frost

Temperature (°C)

16
17
17
18
19
19
20
21
21
21
20
20
18
15
13
12
12
11
11
11
11
10
11
13

Feels Like (°C)

16
16
16
15
16
17
19
20
20
19
19
20
19
16
14
13
13
11
10
11
12
10
10
12

Dew Point (°C)

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

Relative Humidity (%)

78
68
63
53
47
44
42
38
38
39
43
53
66
74
76
79
80
79
79
80
81
84
80
72

Pressure (mb)

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

Ozone (du)

349
348
346
346
348
350
349
348
348
348
347
345
344
344
344
344
344
346
346
342
341
341
339
338

Saturday 25

Waxing Gibbous 87%

18:35

01:27

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

Sun - Rise: 05:16, Set: 20:50, Transit: 13:02. Moon - Rise: 18:35, Set: 01:27. Civil Dark: 21:31 - 04:35. Nautical Dark: 22:26 - 03:41. Astro Dark: 23:45 - 02:23

Total Clouds (% Sky Obscured)

100
99
87
44
35
65
70
55
100
30
49
61
98
40
45
10
7
0
14
60
60
29
62
53

Low Clouds (% Sky Obscured)

0
0
0
0
0
9
10
5
11
0
10
0
6
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
1
2
2
2
2
0
0
0
0
8
4
29
62
53

High Clouds (% Sky Obscured)

100
99
87
44
35
60
67
55
100
27
49
61
96
40
45
10
4
0
11
50
45
1
23
23

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)

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

Chance of Frost

Temperature (°C)

15
16
18
20
21
23
24
24
25
25
25
24
22
19
17
17
16
16
15
15
15
15
15
16

Feels Like (°C)

13
14
16
17
19
21
21
22
22
22
24
23
21
19
16
16
17
17
16
16
16
16
16
17

Dew Point (°C)

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

Relative Humidity (%)

66
59
53
49
46
42
38
36
34
34
38
50
56
58
60
64
67
67
64
60
58
58
61
58

Pressure (mb)

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

Ozone (du)

337
339
337
337
335
334
335
337
339
340
340
340
340
341
341
342
346
347
347
347
348
348
348
348

Sunday 26

Waxing Gibbous 93%

19:26

02:22

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: 05:17, Set: 20:49, Transit: 13:02. Moon - Rise: 19:26, Set: 02:22. Civil Dark: 21:29 - 04:37. Nautical Dark: 22:24 - 03:43. Astro Dark: 23:41 - 02:27

Total Clouds (% Sky Obscured)

58
56
100
99
93
96
100
98
93
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
2
3
0
22
35
24
8
5
2
31
3
36
52
60
51
81
76
92
93
80

Medium Clouds (% Sky Obscured)

58
32
62
60
53
48
100
91
93
100
73
74
100
94
100
100
100
84
73
78
67
82
92
98

High Clouds (% Sky Obscured)

3
38
100
95
86
85
100
94
71
98
100
100
100
100
98
37
51
100
97
100
100
99
98
98

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
4
0

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

Precipitation Probability (%)

0
0
0
0
6
1
3
4
31
34
26
38
37
50
66
91
95
80
49
50
56
67
64
65

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
1.9
0.5
0
0
0
0.2
0.3
0

Wind Speed/Direction (mph)

3
4
6
8
8
9
9
10
10
12
7
4
5
4
3
2
4
2
2
2
3
3
4
3

Chance of Frost

Temperature (°C)

18
20
22
23
24
26
27
27
25
23
22
21
20
19
18
16
16
16
15
15
15
15
15
15

Feels Like (°C)

19
20
22
21
22
23
25
24
23
19
22
22
19
19
18
17
16
16
15
15
16
15
15
15

Dew Point (°C)

8
8
9
9
9
10
9
8
10
12
15
15
14
14
14
15
15
14
14
14
14
15
15
15

Relative Humidity (%)

51
46
44
42
39
37
33
31
38
49
65
68
67
73
79
90
93
92
92
93
95
98
98
100

Pressure (mb)

1007
1006
1006
1006
1006
1006
1005
1005
1005
1006
1006
1006
1007
1007
1007
1008
1008
1008
1008
1008
1008
1008
1009
1009

Ozone (du)

345
344
343
341
340
340
337
336
335
333
339
340
336
340
343
347
349
353
352
353
352
353
359
359

Monday 27

Waxing Gibbous 97%

20:06

03:28

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

Sun - Rise: 05:18, Set: 20:47, Transit: 13:02. Moon - Rise: 20:06, Set: 03:28. Civil Dark: 21:27 - 04:38. Nautical Dark: 22:21 - 03:45. Astro Dark: 23:37 - 02:31

Total Clouds (% Sky Obscured)

99
97
95
98
71
70
72
60
56
49
49
24
17
9
2
15
33
46
33
25
16
15
12
9

Low Clouds (% Sky Obscured)

79
62
67
58
49
57
54
39
29
31
41
19
12
7
2
13
31
41
23
21
16
15
12
8

Medium Clouds (% Sky Obscured)

95
90
85
82
31
16
20
20
21
16
10
1
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

79
29
13
82
26
30
24
19
17
12
9
3
2
2
1
0
0
0
1
1
0
1
1
1

ISS Passover

Visibility (miles)

9
9
9
6
6
3
3
6
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
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
None
None

Precipitation Probability (%)

84
92
95
88
87
87
78
73
59
42
38
27
11
10
1
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.3
0.5
0.8
0.6
0.7
0.6
0.4
0.4
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
16
18
18
19
20
21
21
21
21
20
19
17
15
14
13
12
12
11
11
11
10
11
13

Feels Like (°C)

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

Dew Point (°C)

14
14
13
13
13
12
13
12
10
10
10
11
12
12
12
12
11
10
10
9
10
9
10
11

Relative Humidity (%)

93
83
76
72
66
60
61
56
49
50
52
61
74
83
89
90
90
89
90
90
93
93
93
87

Pressure (mb)

1009
1010
1010
1010
1011
1011
1012
1012
1013
1014
1015
1016
1017
1018
1019
1020
1020
1021
1021
1022
1022
1023
1023
1023

Ozone (du)

364
365
362
362
366
365
359
355
348
347
346
345
346
346
345
344
342
340
339
338
337
336
335
332

Tuesday 28

Waxing Gibbous 100%

20:35

04:40

08 Good
09 OK
10 OK
11 OK
12 OK
13 OK
14 Good
15 OK
16 OK
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 OK
06 OK
07 OK

Sun - Rise: 05:20, Set: 20:46, Transit: 13:02. Moon - Rise: 20:35, Set: 04:40. Civil Dark: 21:26 - 04:40. Nautical Dark: 22:19 - 03:47. Astro Dark: 23:33 - 02:34

Total Clouds (% Sky Obscured)

16
23
28
34
29
23
18
21
25
12
9
1
5
2
0
1
2
2
5
6
8
21
30
29

Low Clouds (% Sky Obscured)

16
23
28
21
29
23
18
21
25
12
7
0
5
2
0
1
1
1
2
4
6
15
30
29

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
1
2
2

High Clouds (% Sky Obscured)

1
0
1
13
3
0
0
0
0
0
0
0
0
0
0
0
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
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
3
3
4
5
6
7
7
7
7
5
4
3
3
3
4
3
3
3
3
3
3
2
2

Chance of Frost

Temperature (°C)

14
16
18
19
20
21
22
23
23
23
22
21
19
18
16
14
14
13
13
12
12
12
14
16

Feels Like (°C)

17
18
20
20
20
20
21
22
22
22
22
23
22
22
21
19
19
18
17
14
14
14
14
14

Dew Point (°C)

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

Relative Humidity (%)

78
65
55
47
44
41
41
40
40
42
43
54
63
69
72
76
76
76
77
79
80
79
72
66

Pressure (mb)

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

Ozone (du)

330
329
328
326
324
323
322
321
321
322
321
321
321
322
322
322
322
322
322
323
324
324
324
324

Wednesday 29

Full Moon 100%

20:57

05:54

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

Sun - Rise: 05:21, Set: 20:44, Transit: 13:02. Moon - Rise: 20:57, Set: 05:54. Civil Dark: 21:24 - 04:42. Nautical Dark: 22:17 - 03:49. Astro Dark: 23:30 - 02:38

Total Clouds (% Sky Obscured)

31
28
25
25
24
23
26
29
30
28
20
15
17
16
13
24
36
45
52
59
67
49
28
9

Low Clouds (% Sky Obscured)

31
28
25
25
24
23
21
20
22
18
18
12
7
4
0
2
4
4
7
12
16
13
7
0

Medium Clouds (% Sky Obscured)

2
1
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)

0
0
0
0
1
1
2
2
3
2
2
1
7
10
13
20
23
28
28
31
35
24
12
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
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
3
5
6
7
8
9
9
9
9
7
5
4
4
3
3
3
3
3
3
3
3
3
2

Chance of Frost

Temperature (°C)

18
19
21
23
23
24
25
25
26
26
25
24
23
21
19
17
17
16
15
15
15
15
16
18

Feels Like (°C)

14
21
22
22
22
22
22
26
25
25
25
26
27
21
22
22
21
20
19
15
16
15
15
15

Dew Point (°C)

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

Relative Humidity (%)

60
54
47
42
40
37
36
35
34
33
40
46
54
57
59
61
61
59
59
60
61
61
60
56

Pressure (mb)

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

Ozone (du)

324
323
323
322
321
320
319
319
318
318
318
317
317
317
317
317
317
317
318
317
317
316
322
328

Thursday 30

Waning Gibbous 98%

21:15

07:09

08 OK
09 OK
10 OK
11 OK
12 OK
13 OK
14 OK
15 OK
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: 20:43, Transit: 13:02. Moon - Rise: 21:15, Set: 07:09. Civil Dark: 21:22 - 04:43. Nautical Dark: 22:15 - 03:51. Astro Dark: 23:26 - 02:42

Total Clouds (% Sky Obscured)

22
34
44
40
39
35
37
45
53
58
63
69
64
65
67
65
66
61

Low Clouds (% Sky Obscured)

10
20
31
30
30
29
33
36
37
32
27
24
26
29
33
33
30
27

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
1
1
13
24
29
22
16
8

High Clouds (% Sky Obscured)

5
3
1
1
1
0
11
20
30
40
52
55
50
50
49
49
50
55

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
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
21
23
25
26
27
28
28
29
29
28
26
24
23
21
20
19
18

Feels Like (°C)

15
23
23
23
23
24
25
31
30
29
30
30
31
22
22
22
22
22

Dew Point (°C)

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

Relative Humidity (%)

54
51
47
44
40
37
34
30
27
24
29
36
45
45
44
44
47
52

Pressure (mb)

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

Ozone (du)

334
332
330
328
326
324
322
320
318
316
315
313
312
310
309
308
307
306

Forecast for Maršov u Úpice, Trutnov District, Czech Republic (50.48,15.98)

Generated: 24/07/26 08:30:20. Forecast: 24/07/26 to 30/07/26. Timezone: UTC+2.00