Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 2

Waning Gibbous 81%

22:00

09:44

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

Sun - Rise: 05:34, Set: 20:43, Transit: 13:08. Moon - Rise: 22:00, Set: 09:44. Civil Dark: 21:21 - 04:56. Nautical Dark: 22:12 - 04:06. Astro Dark: 23:17 - 03:02

Total Clouds (% Sky Obscured)

64
75
80
100
92
67
70
66
48
22
28
67
43
36
32
24
5
0
19
31
37
37
26
27

Low Clouds (% Sky Obscured)

64
75
80
81
62
51
68
58
25
9
16
42
25
29
29
24
0
0
0
0
11
27
7
5

Medium Clouds (% Sky Obscured)

1
1
0
0
8
0
0
0
9
3
13
27
24
32
27
20
5
0
19
31
32
28
23
25

High Clouds (% Sky Obscured)

64
75
80
100
71
55
8
1
2
3
3
3
6
2
5
1
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
1
1
1
1
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)

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

Chance of Frost

Temperature (°C)

18
19
21
22
24
25
26
27
27
27
26
25
23
22
21
20
19
18
18
17
17
17
18
20

Feels Like (°C)

18
20
21
22
23
24
26
28
28
27
28
26
22
22
22
21
21
20
20
19
19
20
20
22

Dew Point (°C)

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

Relative Humidity (%)

77
77
76
68
58
52
49
46
46
48
50
59
59
66
70
72
77
80
82
82
85
85
77
70

Pressure (mb)

1021
1021
1021
1020
1020
1019
1019
1018
1018
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017

Ozone (du)

304
303
304
305
306
307
310
313
314
313
311
309
308
308
308
308
308
307
308
309
309
309
308
307

Monday 3

Waning Gibbous 71%

22:14

11:00

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

Sun - Rise: 05:35, Set: 20:41, Transit: 13:08. Moon - Rise: 22:14, Set: 11:00. Civil Dark: 21:20 - 04:57. Nautical Dark: 22:10 - 04:08. Astro Dark: 23:13 - 03:05

Total Clouds (% Sky Obscured)

21
11
0
11
24
19
0
0
12
21
15
0
7
33
48
92
4
2
33
22
19
15
31
43

Low 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

Medium Clouds (% Sky Obscured)

21
11
0
11
23
19
0
0
12
19
14
0
6
5
0
0
3
2
28
11
16
12
7
3

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
23
39
87
1
0
3
12
1
1
17
25

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
2
2
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)

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

Chance of Frost

Temperature (°C)

22
24
26
28
30
31
32
33
33
33
32
30
28
26
26
24
23
22
22
22
21
21
22
24

Feels Like (°C)

24
26
29
31
34
35
35
35
35
35
35
33
30
30
29
28
25
26
26
25
25
25
26
28

Dew Point (°C)

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

Relative Humidity (%)

63
57
50
45
41
39
38
37
37
39
46
53
57
62
67
71
74
78
78
76
79
80
73
63

Pressure (mb)

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

Ozone (du)

307
308
308
308
309
310
310
309
306
304
303
303
305
305
303
302
303
302
301
300
300
301
301
301

Tuesday 4

Waning Gibbous 61%

22:29

12:18

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

Sun - Rise: 05:37, Set: 20:40, Transit: 13:08. Moon - Rise: 22:29, Set: 12:18. Civil Dark: 21:18 - 04:59. Nautical Dark: 22:07 - 04:10. Astro Dark: 23:10 - 03:08

Total Clouds (% Sky Obscured)

36
35
24
4
4
72
68
70
62
61
62
100
71
27
70
97
34
10
10
28
14
11
6
12

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

4
2
2
2
0
3
21
15
30
17
0
45
19
19
13
9
3
5
9
22
11
8
6
8

High Clouds (% Sky Obscured)

36
35
24
3
4
48
48
35
35
40
38
77
71
11
70
96
34
3
1
7
3
2
1
4

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
8
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
1
3
15
18
23
21
13
17
33
40
17
15
15
1
3
3
9
25
11
1
3

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
2
2
2
2
2
3
3
2
4
5
5
8
5
5
2
3
3
3
4
4
4
4
3

Chance of Frost

Temperature (°C)

26
29
31
34
36
37
38
38
37
37
36
33
30
28
25
24
23
22
22
21
21
22
24
25

Feels Like (°C)

29
30
33
36
39
40
41
40
40
39
38
34
29
28
27
26
25
24
25
24
23
24
27
28

Dew Point (°C)

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

Relative Humidity (%)

54
45
40
36
32
29
27
24
24
24
32
38
45
59
78
73
71
72
72
70
70
72
66
58

Pressure (mb)

1014
1014
1014
1014
1013
1013
1012
1012
1012
1011
1011
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014

Ozone (du)

300
299
299
300
301
302
302
301
302
303
303
302
302
303
302
303
303
303
303
304
304
304
303
303

Wednesday 5

Waning Gibbous 49%

22:49

13:39

09 Good
10 OK
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 OK
06 OK
07 OK
08 OK

Sun - Rise: 05:38, Set: 20:38, Transit: 13:07. Moon - Rise: 22:49, Set: 13:39. Civil Dark: 21:16 - 05:01. Nautical Dark: 22:05 - 04:12. Astro Dark: 23:07 - 03:11

Total Clouds (% Sky Obscured)

17
23
36
48
68
75
100
86
74
65
49
45
35
26
48
72
92
89
86
82
41
31
28
40

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
8
38
0
0
0
2
9
2
0
0
0
0
0
0
0
0
12

Medium Clouds (% Sky Obscured)

9
11
15
18
20
23
24
28
39
32
31
22
16
15
23
48
72
67
62
54
41
31
28
27

High Clouds (% Sky Obscured)

8
13
28
45
67
74
100
82
39
51
28
25
26
21
36
60
80
68
62
54
11
3
2
10

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
5
9
2
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
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

1
2
18
20
29
27
29
37
44
68
95
95
92
95
15
11
3
1
0
0
2
2
0
2

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.7
1.7
0.6
1.4
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
5
6
6
5
5
4
4
6
4
9
2
3
4
5
5
4
4
3
2
2
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

30
33
34
35
34
34
35
34
34
34
29
31
29
27
25
25
25
24
24
25
24
26
28
28

Dew Point (°C)

17
18
18
16
15
14
14
13
13
14
24
23
24
22
21
21
21
20
20
20
20
20
20
19

Relative Humidity (%)

53
47
42
38
35
32
30
29
28
32
67
70
81
82
82
82
85
85
85
87
87
88
83
72

Pressure (mb)

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

Ozone (du)

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

Thursday 6

Third Quarter 37%

23:16

15:04

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
08 Bad

Sun - Rise: 05:40, Set: 20:36, Transit: 13:07. Moon - Rise: 23:16, Set: 15:04. Civil Dark: 21:14 - 05:02. Nautical Dark: 22:03 - 04:14. Astro Dark: 23:04 - 03:14

Total Clouds (% Sky Obscured)

59
59
71
78
99
85
68
78
89
95
100
100
100
100
100
100
100
90
80
73
73
76
79
78

Low Clouds (% Sky Obscured)

20
27
29
28
33
24
16
7
14
25
26
20
16
11
11
14
18
14
11
7
27
47
66
71

Medium Clouds (% Sky Obscured)

30
37
48
50
57
62
54
71
47
64
66
66
58
51
60
66
73
67
64
66
65
70
69
76

High Clouds (% Sky Obscured)

22
6
24
51
97
48
20
4
70
85
100
100
100
99
100
100
100
87
73
65
58
51
50
52

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
6
8
2
5
7
9
9
9
9
9
9
9
7
5
3

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

Precipitation Probability (%)

3
2
12
18
17
25
27
24
89
95
78
65
54
43
30
18
2
9
11
11
31
47
55
53

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

4
4
4
5
5
6
6
6
9
16
13
6
7
6
4
5
5
6
5
5
5
5
5
5

Chance of Frost

Temperature (°C)

26
27
29
30
31
32
32
32
31
27
25
24
24
23
22
22
21
20
20
19
18
19
19
20

Feels Like (°C)

30
31
33
33
34
34
34
34
31
23
21
25
24
24
23
23
21
20
20
20
19
20
20
21

Dew Point (°C)

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

Relative Humidity (%)

63
56
48
42
37
33
31
29
30
66
71
80
83
84
88
88
88
89
89
91
90
91
91
89

Pressure (mb)

1018
1018
1018
1017
1017
1016
1016
1016
1015
1016
1016
1017
1017
1018
1019
1019
1019
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

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

Friday 7

Waning Crescent 26%

23:54

16:29

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

Sun - Rise: 05:41, Set: 20:35, Transit: 13:07. Moon - Rise: 23:54, Set: 16:29. Civil Dark: 21:12 - 05:04. Nautical Dark: 22:01 - 04:16. Astro Dark: 23:00 - 03:17

Total Clouds (% Sky Obscured)

80
76
77
78
79
78
81
87
73
58
44
41
40
39
48
56
67
57
47
41
62
80
97
81

Low Clouds (% Sky Obscured)

75
76
77
78
79
75
66
56
36
22
12
11
11
13
31
52
67
57
47
41
45
48
51
37

Medium Clouds (% Sky Obscured)

72
71
68
65
62
59
59
63
59
52
44
37
29
26
31
36
40
31
22
14
31
40
46
36

High Clouds (% Sky Obscured)

61
66
64
67
60
42
54
61
43
25
7
4
3
0
4
7
11
10
9
8
9
10
10
8

ISS Passover

Visibility (miles)

5
7
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 (%)

48
38
36
30
11
29
35
35
33
28
17
17
10
0
4
4
0
2
1
0
1
0
0
2

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

Chance of Frost

Temperature (°C)

21
22
23
24
24
25
25
25
25
25
24
24
22
21
19
19
18
17
16
15
14
15
17
18

Feels Like (°C)

22
23
23
24
25
25
26
26
25
25
25
25
24
23
22
22
20
19
17
16
16
16
16
16

Dew Point (°C)

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

Relative Humidity (%)

86
81
78
75
72
70
67
65
63
64
65
67
68
68
69
68
67
66
68
73
75
69
66
62

Pressure (mb)

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

Ozone (du)

299
299
299
300
302
303
306
310
313
310
308
305
306
307
307
305
302
300
301
301
302
301
300
299

Saturday 8

Waning Crescent 25%

00:49

17:45

09 Bad
10 OK
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

Sun - Rise: 05:43, Set: 20:33, Transit: 13:07. Moon - Rise: 00:49, Set: 17:45. Civil Dark: 21:10 - 05:06. Nautical Dark: 21:58 - 04:18. Astro Dark: 22:57 - 03:20

Total Clouds (% Sky Obscured)

64
47
64
79
91
83
74
66
57
47
37
41
43
47
40
33
25

Low Clouds (% Sky Obscured)

20
8
8
10
12
10
7
3
5
8
10
10
10
11
7
6
1

Medium Clouds (% Sky Obscured)

32
28
23
17
13
21
29
36
29
25
19
24
28
33
30
28
24

High Clouds (% Sky Obscured)

7
6
31
55
80
66
49
33
24
13
1
1
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

Fog (%)

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

Precipitation Probability (%)

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

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
23
25
26
27
27
27
27
27
26
25
23
22
20
19
18
17

Feels Like (°C)

20
21
23
23
24
24
27
27
26
26
26
27
22
21
21
19
19

Dew Point (°C)

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

Relative Humidity (%)

55
47
42
38
35
32
31
30
29
32
37
42
45
49
54
56
59

Pressure (mb)

1018
1018
1017
1017
1017
1017
1016
1016
1016
1016
1016
1017
1017
1017
1018
1018
1018

Ozone (du)

301
302
304
305
307
308
309
311
312
309
307
304
305
305
305
305
306

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

Generated: 02/08/26 08:58:22. Forecast: 02/08/26 to 08/08/26. Timezone: UTC+2.00