Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 14

Waxing Crescent 10%

09:06

21:05

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

Sun - Rise: 05:45, Set: 20:15, Transit: 13:00. Moon - Rise: 09:06, Set: 21:05. Civil Dark: 20:52 - 05:08. Nautical Dark: 21:38 - 04:22. Astro Dark: 22:35 - 03:28

Total Clouds (% Sky Obscured)

22
24
27
26
4
2
0
2
2
2
4
4
5
5
5
7
5
2
2
2
2
1
0
0

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)

0
0
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)

13
19
27
26
4
2
0
2
2
2
3
4
5
5
5
7
5
2
2
2
2
1
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)

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

Chance of Frost

Temperature (°C)

20
18
17
15
15
15
15
15
14
16
19
22
24
26
28
29
30
31
31
31
31
29
26
23

Feels Like (°C)

20
19
18
15
15
16
16
16
15
17
20
22
24
25
27
28
29
30
30
30
30
29
26
23

Dew Point (°C)

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

Relative Humidity (%)

50
50
51
50
52
53
53
55
56
53
44
36
29
25
22
20
18
17
17
17
19
28
33
37

Pressure (mb)

1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1017
1017
1017
1016
1016
1015
1015
1014
1014
1013
1012
1012
1012
1013

Ozone (du)

315
315
315
314
314
313
313
312
311
311
313
314
313
313
313
313
313
313
313
313
312
311
311
311

Saturday 15

Waxing Crescent 18%

10:23

21:19

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

Sun - Rise: 05:46, Set: 20:13, Transit: 13:00. Moon - Rise: 10:23, Set: 21:19. Civil Dark: 20:49 - 05:10. Nautical Dark: 21:35 - 04:24. Astro Dark: 22:32 - 03:31

Total Clouds (% Sky Obscured)

0
0
15
0
1
3
2
20
76
92
100
98
88
61
93
87
81
100
100
100
100
77
67
88

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
0
30
15
0
0
0
21

Medium Clouds (% Sky Obscured)

0
0
12
0
0
0
0
4
20
30
33
41
35
56
61
74
77
23
33
74
61
32
48
51

High Clouds (% Sky Obscured)

0
0
0
0
1
3
2
14
63
83
100
95
78
14
88
67
65
100
100
85
43
48
55
79

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
2
1
0
0
0
4
3
21
1
3
12
45

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

Chance of Frost

Temperature (°C)

20
20
20
19
19
18
18
17
17
18
21
23
25
27
28
29
29
30
30
29
26
25
23
21

Feels Like (°C)

21
20
20
20
19
19
18
18
17
17
19
21
23
26
27
27
27
28
26
26
24
24
22
22

Dew Point (°C)

6
5
5
5
4
4
4
4
4
6
6
6
6
6
6
6
7
7
8
9
11
13
15
15

Relative Humidity (%)

39
39
39
37
37
37
38
39
40
43
38
32
30
26
25
22
24
23
25
28
39
46
59
68

Pressure (mb)

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

Ozone (du)

310
309
308
308
307
307
307
308
309
308
308
308
308
307
309
311
316
320
321
322
321
319
316
315

Sunday 16

Waxing Crescent 26%

11:40

21:33

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

Sun - Rise: 05:48, Set: 20:11, Transit: 13:00. Moon - Rise: 11:40, Set: 21:33. Civil Dark: 20:47 - 05:12. Nautical Dark: 21:33 - 04:26. Astro Dark: 22:29 - 03:33

Total Clouds (% Sky Obscured)

91
100
89
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
97
99
97
96

Low Clouds (% Sky Obscured)

24
44
34
42
72
86
87
87
89
93
80
62
41
65
64
48
44
52
71
70
34
17
47
57

Medium Clouds (% Sky Obscured)

52
39
9
59
67
66
100
100
100
100
100
100
100
100
43
43
38
49
84
69
79
36
69
81

High Clouds (% Sky Obscured)

87
100
82
100
100
100
100
100
100
100
100
100
100
100
100
100
92
100
100
98
78
96
52
10

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
1
1
0
0
2
1
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Heavy Rain
Moderate Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

90
91
88
84
95
95
95
95
95
95
95
95
95
86
31
26
34
24
8
12
7
4
2
1

Precipitation Amount (mm)

0.8
1
0.9
0.8
0.9
0.8
1.5
2
7.9
9.7
11.9
2.6
0.9
0.6
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
10
8
7
5
5
4
4
3
4
9
8
9
8
7
7
6
5
4
5
6
4
2
1

Chance of Frost

Temperature (°C)

20
19
18
17
17
17
17
17
16
16
16
16
16
16
16
17
19
20
20
20
19
18
17
16

Feels Like (°C)

20
17
16
16
17
17
17
17
17
17
16
15
15
15
16
16
18
18
18
18
16
16
15
15

Dew Point (°C)

15
15
15
16
16
16
16
16
16
16
15
14
14
13
13
13
11
10
10
11
10
9
10
10

Relative Humidity (%)

69
77
85
92
93
95
93
96
96
96
93
89
89
78
81
74
58
54
53
56
53
55
64
65

Pressure (mb)

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

Ozone (du)

315
315
313
311
312
313
313
315
316
316
319
321
326
329
330
332
332
335
335
337
338
340
342
342

Monday 17

Waxing Crescent 36%

12:55

21:51

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

Sun - Rise: 05:49, Set: 20:09, Transit: 12:59. Moon - Rise: 12:55, Set: 21:51. Civil Dark: 20:45 - 05:14. Nautical Dark: 21:30 - 04:28. Astro Dark: 22:26 - 03:36

Total Clouds (% Sky Obscured)

92
82
94
97
84
61
68
62
86
91
69
68
83
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

70
49
66
69
57
35
58
39
67
26
27
30
52
66
75
82
78
85
89
91
91
91
91
91

Medium Clouds (% Sky Obscured)

72
67
83
93
55
35
24
25
28
29
35
40
42
47
58
99
67
97
96
96
97
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
3
4
17
30
83
40
39
35
98
96
94
95
94
100
100
100
100
100
100

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
Very Light Rain

Precipitation Probability (%)

1
3
2
2
2
2
0
0
0
0
1
6
5
12
16
21
24
25
21
23
29
38
47
52

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
0.2

Wind Speed/Direction (mph)

2
3
3
2
2
2
2
2
2
2
3
5
7
10
10
11
12
11
10
8
8
8
8
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
14
14
14
13
13
13
12
13
13
14
16
17
16
16
16
16
16
15
15
15
15
15
15

Dew Point (°C)

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

Relative Humidity (%)

65
70
73
73
73
76
83
83
89
82
74
66
58
52
47
47
48
47
57
67
67
68
71
71

Pressure (mb)

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

Ozone (du)

342
345
348
341
338
335
332
327
323
321
319
318
317
318
318
315
316
318
318
317
318
318
317
316

Tuesday 18

Waxing Crescent 46%

14:10

No Set

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

Sun - Rise: 05:51, Set: 20:07, Transit: 12:59. Moon - Rise: 14:10, Set: No Set. Civil Dark: 20:43 - 05:15. Nautical Dark: 21:28 - 04:30. Astro Dark: 22:23 - 03:39

Total Clouds (% Sky Obscured)

100
100
100
100
97
97
87
87
86
96
90
99
96
97
88
96
97
97
98
95
92
89
87
86

Low Clouds (% Sky Obscured)

90
82
49
82
68
84
77
61
68
83
75
69
67
69
61
51
58
65
73
66
61
59
56
46

Medium Clouds (% Sky Obscured)

100
99
93
86
89
80
52
46
47
48
47
89
83
83
50
89
80
70
60
63
66
68
68
74

High Clouds (% Sky Obscured)

100
89
78
64
44
45
11
42
34
48
53
64
57
42
32
22
15
6
1
2
3
4
4
3

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
7
7
4
9
9
9
9
9
9
9
9
9
9
8
6
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

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

Precipitation Probability (%)

53
43
31
13
21
23
21
32
39
46
56
70
82
88
89
84
95
73
36
46
53
59
63
69

Precipitation Amount (mm)

0.2
0
0
0
0
0
0
0
0
0.2
0.3
0.4
0.5
0.6
0.6
0.5
1
0.6
0
0
0
0
0.2
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
77
79
90
89
92
93
98
98
95
87
78
69
60
54
49
46
48
50
52
58
67
75
82

Pressure (mb)

1012
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1011
1011
1011
1010
1010
1009
1009
1009
1009
1009
1010
1010
1011

Ozone (du)

315
313
313
311
309
308
307
306
307
307
307
306
307
306
306
306
305
304
304
304
304
304
304
305

Wednesday 19

Waxing Crescent 56%

15:21

22:13

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

Sun - Rise: 05:52, Set: 20:05, Transit: 12:59. Moon - Rise: 15:21, Set: 22:13. Civil Dark: 20:41 - 05:17. Nautical Dark: 21:25 - 04:32. Astro Dark: 22:20 - 03:41

Total Clouds (% Sky Obscured)

86
81
77
73
79
86
95
95
95
93
89
85
80
79
78
78
60
44
27
51
75
99
95
90

Low Clouds (% Sky Obscured)

35
47
59
71
70
65
57
34
23
15
20
26
32
32
29
27
20
16
15
22
28
33
23
12

Medium Clouds (% Sky Obscured)

81
67
53
39
25
13
0
0
0
0
10
21
34
26
17
7
5
3
1
12
21
28
30
29

High Clouds (% Sky Obscured)

1
6
11
17
35
60
89
85
77
75
58
40
28
45
56
63
41
24
15
38
61
84
86
88

ISS Passover

Visibility (miles)

8
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 (%)

64
51
33
3
6
5
0
0
0
0
0
0
0
0
0
0
0
1
1
16
24
30
40
54

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
3
2
2
1
1
0
0
1
1
2
4
6
9
9
10
10
9
7
6
4
3
4
4

Chance of Frost

Temperature (°C)

17
16
16
16
15
15
14
14
15
15
16
17
19
20
22
23
24
25
25
26
24
23
21
20

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
96
96
96
96
93
93
92
87
86
82
73
64
58
50
43
38
38
39
39
48
60
74
79

Pressure (mb)

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

Ozone (du)

307
309
311
312
314
314
313
313
312
312
312
311
310
309
310
310
310
309
308
307
308
308
309
309

Thursday 20

First Quarter 65%

16:26

22:42

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

Sun - Rise: 05:54, Set: 20:03, Transit: 12:59. Moon - Rise: 16:26, Set: 22:42. Civil Dark: 20:39 - 05:19. Nautical Dark: 21:23 - 04:34. Astro Dark: 22:16 - 03:44

Total Clouds (% Sky Obscured)

84
86
88
93
90
85
80
84
87
88
77
69
65
73
76
75
83
92
100
100
100
100

Low Clouds (% Sky Obscured)

2
4
7
9
23
36
47
52
58
66
59
52
49
45
45
41
39
41
42
43
41
39

Medium Clouds (% Sky Obscured)

29
23
17
12
30
48
65
69
71
75
65
52
50
55
70
75
83
80
80
75
65
65

High Clouds (% Sky Obscured)

84
86
88
93
67
33
0
5
10
14
34
51
60
59
51
45
56
79
100
100
100
100

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

Fog (%)

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

Precipitation Probability (%)

71
69
60
50
42
31
6
21
33
41
49
51
50
64
73
81
95
95
95
95
90
72

Precipitation Amount (mm)

0
0.3
0.2
0
0
0
0
0
0
0
0.2
0.2
0
0.3
0.4
0.5
0.7
1
1.2
0.8
0.6
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

19
20
20
20
19
17
17
17
17
16
16
19
18
17
18
18
19
19
19
17
18
19

Dew Point (°C)

17
18
17
17
17
17
16
16
15
14
14
10
7
4
3
2
1
2
2
2
4
6

Relative Humidity (%)

86
95
95
96
98
98
98
96
90
82
77
58
44
34
31
29
27
28
29
31
37
46

Pressure (mb)

1011
1011
1011
1011
1010
1010
1010
1010
1011
1011
1011
1011
1011
1012
1012
1012
1012
1012
1012
1012
1013
1013

Ozone (du)

309
309
308
308
308
309
310
310
311
311
312
312
312
312
311
310
309
307
306
305
305
304

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

Generated: 14/08/26 22:26:36. Forecast: 14/08/26 to 20/08/26. Timezone: UTC+2.00