Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 31

Waning Gibbous 94%

21:29

08:23

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: 05:24, Set: 20:41, Transit: 13:02. Moon - Rise: 21:29, Set: 08:23. Civil Dark: 21:21 - 04:45. Nautical Dark: 22:13 - 03:53. Astro Dark: 23:22 - 02:45

Total Clouds (% Sky Obscured)

17
36
47
35
30
40
63
59
100
75
99
100
100
100
100
100
100
100
95
74
79
50
45
92

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
13
0
0
0
1
2
0
0
1
1
0
0
0
8
13
8
6
34

Medium Clouds (% Sky Obscured)

5
8
16
23
22
35
63
27
47
62
43
56
76
73
100
100
80
68
30
59
55
25
18
16

High Clouds (% Sky Obscured)

8
7
5
35
13
2
26
53
99
58
99
100
100
100
100
100
100
100
90
60
67
44
11
89

ISS Passover

Visibility (miles)

9
9
9
9
9
9
4
9
9
9
9
9
5
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
Very Light Rain
Very Light Rain
None
None
None
None
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
5
4
43
58
28
29
21
37
31
51
26
5
7
11
11
18
3
5
4
20
18

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

4
4
4
4
3
4
7
5
6
6
5
4
3
4
3
3
3
1
3
4
6
7
7
8

Chance of Frost

Temperature (°C)

32
32
33
33
33
32
26
24
22
22
21
20
20
20
19
19
20
20
22
23
24
25
27
29

Feels Like (°C)

33
33
34
34
33
34
26
24
22
22
22
21
22
21
21
21
21
22
23
24
25
26
27
29

Dew Point (°C)

12
11
11
11
12
16
20
20
20
20
20
20
19
19
19
18
18
18
19
18
19
19
17
16

Relative Humidity (%)

29
27
26
26
27
37
67
78
84
87
92
95
95
95
95
93
91
88
81
74
73
68
52
43

Pressure (mb)

1015
1014
1014
1013
1012
1012
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1014

Ozone (du)

306
306
306
306
305
304
303
305
305
305
305
303
301
303
304
306
309
310
311
312
313
313
311
310

Saturday 1

Waning Gibbous 88%

21:42

09:38

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 OK
10 OK
11 OK
12 OK
13 Bad

Sun - Rise: 05:25, Set: 20:40, Transit: 13:02. Moon - Rise: 21:42, Set: 09:38. Civil Dark: 21:19 - 04:47. Nautical Dark: 22:11 - 03:55. Astro Dark: 23:19 - 02:49

Total Clouds (% Sky Obscured)

78
100
100
96
100
100
73
93
84
85
80
77
79
52
79
75
73
95
45
28
36
43
45
55

Low Clouds (% Sky Obscured)

38
76
54
36
67
71
44
76
57
55
46
40
39
36
57
75
73
63
35
9
2
2
1
3

Medium Clouds (% Sky Obscured)

21
22
49
12
32
53
60
79
41
37
40
26
0
0
0
0
0
0
1
3
1
1
0
0

High Clouds (% Sky Obscured)

60
60
72
79
100
51
48
55
45
59
40
60
65
29
60
55
59
85
27
23
36
43
45
55

ISS Passover

Visibility (miles)

9
9
5
6
5
9
9
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

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

Precipitation Probability (%)

40
95
95
95
95
35
67
77
26
14
8
2
0
0
5
9
1
1
0
0
0
0
0
0

Precipitation Amount (mm)

0
0.6
1.9
1
0.9
0
0.4
0.5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
8
10
11
4
5
8
7
6
5
6
7
7
8
8
9
8
8
9
9
10
10
10
10

Chance of Frost

Temperature (°C)

30
29
26
23
23
21
20
19
19
19
18
18
17
17
17
16
16
16
17
18
20
22
23
24

Feels Like (°C)

30
31
26
22
25
23
20
21
20
20
20
18
18
17
18
15
15
16
16
17
19
20
21
22

Dew Point (°C)

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

Relative Humidity (%)

42
40
58
88
84
89
91
93
95
95
95
95
95
95
98
93
93
95
93
88
75
64
58
55

Pressure (mb)

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

Ozone (du)

310
309
307
308
307
307
307
303
306
307
309
308
311
312
313
313
312
311
311
309
307
306
305
305

Sunday 2

Waning Gibbous 81%

21:54

10:54

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

Sun - Rise: 05:27, Set: 20:38, Transit: 13:02. Moon - Rise: 21:54, Set: 10:54. Civil Dark: 21:17 - 04:48. Nautical Dark: 22:08 - 03:57. Astro Dark: 23:15 - 02:52

Total Clouds (% Sky Obscured)

49
56
38
36
35
39
40
39
35
31
33
49
56
42
50
50
48
38
41
39
38
37
37
34

Low Clouds (% Sky Obscured)

8
3
2
6
15
21
23
32
26
31
33
31
21
27
32
31
7
2
1
1
0
2
3
4

Medium Clouds (% Sky Obscured)

0
0
24
26
31
23
30
32
28
28
28
26
41
41
50
45
37
37
37
38
38
37
35
29

High Clouds (% Sky Obscured)

49
56
15
3
0
2
0
0
0
0
0
17
35
2
10
16
14
9
6
2
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
Very Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
4
8
39
53
61
43
23
17
7
6
4
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.9
0.4
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

25
25
25
25
25
24
22
20
19
19
18
18
18
18
18
17
17
18
19
21
24
26
27
29

Feels Like (°C)

23
23
24
24
23
24
22
20
19
18
18
18
17
17
17
16
17
18
20
22
25
27
28
30

Dew Point (°C)

15
15
15
14
14
15
15
15
15
14
14
13
13
12
12
11
11
11
11
12
13
14
14
14

Relative Humidity (%)

53
52
51
51
52
57
66
75
76
76
76
72
70
67
67
68
69
65
57
55
52
48
44
40

Pressure (mb)

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

Ozone (du)

307
307
308
308
308
309
308
307
309
309
308
307
305
305
306
308
308
307
308
307
306
306
307
307

Monday 3

Waning Gibbous 71%

22:07

12:12

14 OK
15 OK
16 OK
17 OK
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
08 OK
09 OK
10 OK
11 Bad
12 Bad
13 Bad

Sun - Rise: 05:28, Set: 20:37, Transit: 13:02. Moon - Rise: 22:07, Set: 12:12. Civil Dark: 21:15 - 04:50. Nautical Dark: 22:06 - 04:00. Astro Dark: 23:12 - 02:55

Total Clouds (% Sky Obscured)

27
20
12
8
4
0
0
0
0
3
6
10
11
12
13
19
26
32
31
25
19
35
88
54

Low Clouds (% Sky Obscured)

6
7
8
5
3
0
0
0
0
0
0
0
3
7
9
6
3
0
0
0
0
1
4
2

Medium Clouds (% Sky Obscured)

21
11
3
2
1
0
0
0
0
2
3
5
4
2
0
10
20
30
26
16
10
11
34
8

High Clouds (% Sky Obscured)

0
1
1
0
0
0
0
0
0
1
1
2
2
1
0
0
0
0
5
9
13
28
42
50

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 (%)

4
6
6
6
5
2
3
7
6
0
0
0
0
0
0
0
0
0
0
0
0
12
15
14

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

Chance of Frost

Temperature (°C)

30
30
31
31
30
28
26
24
23
22
21
21
20
20
19
19
20
22
25
27
29
31
32
32

Feels Like (°C)

31
31
32
31
31
29
28
26
24
23
23
23
23
23
22
22
23
26
29
30
32
33
34
33

Dew Point (°C)

14
14
15
15
16
17
19
19
18
18
17
17
17
17
16
16
16
16
16
16
16
16
15
18

Relative Humidity (%)

38
37
37
39
42
50
63
71
75
80
80
81
82
82
81
81
79
68
58
51
45
39
34
43

Pressure (mb)

1015
1015
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

306
305
304
304
304
304
303
303
303
303
303
302
301
301
301
300
299
299
298
298
297
297
297
298

Tuesday 4

Waning Gibbous 61%

22:22

13:34

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

Sun - Rise: 05:30, Set: 20:35, Transit: 13:02. Moon - Rise: 22:22, Set: 13:34. Civil Dark: 21:13 - 04:52. Nautical Dark: 22:04 - 04:02. Astro Dark: 23:08 - 02:58

Total Clouds (% Sky Obscured)

60
66
79
94
61
66
66
65
65
51
31
12
24
37
52
55
57
59
45
30
20
18
16
15

Low Clouds (% Sky Obscured)

2
1
0
19
0
0
0
0
0
0
0
0
8
16
23
15
7
0
0
0
0
1
1
2

Medium Clouds (% Sky Obscured)

15
24
41
52
7
1
7
12
18
12
6
0
0
0
0
0
0
0
0
0
0
0
0
1

High Clouds (% Sky Obscured)

50
40
40
45
45
50
55
55
50
40
25
10
19
32
42
43
53
59
45
30
20
18
11
3

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 (%)

21
27
34
34
28
10
2
4
4
5
3
2
3
2
1
3
1
0
0
0
0
10
14
17

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

Chance of Frost

Temperature (°C)

34
34
34
33
31
30
27
25
24
23
22
22
21
21
21
20
22
24
25
27
30
32
33
34

Feels Like (°C)

36
35
35
34
33
32
30
28
29
26
25
25
25
24
24
23
23
23
23
30
31
31
32
32

Dew Point (°C)

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

Relative Humidity (%)

31
29
28
30
39
52
67
73
71
70
71
69
69
68
69
69
63
59
55
48
42
36
32
28

Pressure (mb)

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

Ozone (du)

298
299
300
301
301
302
302
302
303
304
303
302
301
300
299
298
298
297
297
298
299
299
300
301

Wednesday 5

Waning Gibbous 49%

22:42

No Set

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

Sun - Rise: 05:31, Set: 20:33, Transit: 13:01. Moon - Rise: 22:42, Set: No Set. Civil Dark: 21:12 - 04:53. Nautical Dark: 22:01 - 04:04. Astro Dark: 23:05 - 03:02

Total Clouds (% Sky Obscured)

29
41
63
65
61
57
65
73
80
69
61
52
49
55
61
47
33
18
30
39
45
58
70
87

Low Clouds (% Sky Obscured)

5
9
13
14
9
2
2
1
1
3
4
6
9
13
12
6
5
2
1
1
1
2
4
5

Medium Clouds (% Sky Obscured)

8
14
20
30
39
47
36
26
17
25
31
31
23
19
15
10
7
2
4
4
3
4
4
4

High Clouds (% Sky Obscured)

15
40
61
47
26
14
19
22
33
55
61
52
49
37
29
20
11
2
17
35
45
58
70
87

ISS Passover

Visibility (miles)

9
9
9
9
9
8
8
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
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 (%)

39
42
41
35
36
37
30
29
34
33
30
8
6
4
1
4
4
1
18
22
17
26
21
19

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)

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

Chance of Frost

Temperature (°C)

35
35
35
34
32
29
27
25
24
23
22
22
21
20
20
19
21
22
24
26
28
29
30
31

Feels Like (°C)

33
38
37
35
37
38
41
25
25
24
23
23
22
22
22
23
22
23
23
29
29
29
29
29

Dew Point (°C)

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

Relative Humidity (%)

25
24
24
24
35
49
71
75
80
85
83
83
80
82
85
89
81
76
70
61
51
44
40
35

Pressure (mb)

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

Ozone (du)

302
301
301
300
299
299
298
297
297
296
296
297
297
297
298
298
298
299
299
298
298
298
298
298

Thursday 6

Third Quarter 37%

23:08

15:00

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: 05:33, Set: 20:32, Transit: 13:01. Moon - Rise: 23:08, Set: 15:00. Civil Dark: 21:10 - 04:55. Nautical Dark: 21:59 - 04:06. Astro Dark: 23:01 - 03:05

Total Clouds (% Sky Obscured)

82
74
66
74
82
86
68
52
31
38
50
64
65
66
67
59
59
55

Low Clouds (% Sky Obscured)

8
11
18
36
50
60
44
28
11
17
23
29
36
44
50
42
36
34

Medium Clouds (% Sky Obscured)

4
4
5
19
33
47
44
39
29
25
16
10
5
4
1
3
7
9

High Clouds (% Sky Obscured)

67
34
0
34
63
85
57
41
31
38
50
64
65
66
67
59
33
18

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

20
23
26
53
76
69
62
61
64
54
50
46
47
45
47
38
21
6

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

31
31
32
32
30
27
25
24
22
20
20
19
19
19
18
18
19
20

Feels Like (°C)

29
33
32
31
32
33
34
24
24
25
24
23
22
20
19
19
21
21

Dew Point (°C)

13
13
13
13
16
19
21
21
20
20
19
19
18
18
17
16
17
17

Relative Humidity (%)

31
32
32
32
44
58
78
83
88
95
95
95
95
93
90
89
85
81

Pressure (mb)

1014
1014
1013
1013
1013
1013
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

298
298
298
299
299
300
300
300
300
300
300
300
301
303
305
307
311
314

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

Generated: 31/07/26 14:29:33. Forecast: 31/07/26 to 06/08/26. Timezone: UTC+2.00