Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 4

Third Quarter 40%

No Rise

16:36

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

Sun - Rise: 06:17, Set: 19:32, Transit: 12:54. Moon - Rise: No Rise, Set: 16:36. Civil Dark: 20:05 - 05:43. Nautical Dark: 20:46 - 05:02. Astro Dark: 21:30 - 04:18

Total Clouds (% Sky Obscured)

66
69
65
100
100
100
100
100
61
58
39
29
56
56
49
56
24
26
9
5
26
35
34
68

Low Clouds (% Sky Obscured)

61
41
65
31
35
51
32
32
27
21
38
29
56
41
35
40
2
6
2
3
5
2
21
58

Medium Clouds (% Sky Obscured)

33
50
65
66
100
100
100
63
35
35
0
0
0
42
34
32
17
5
1
1
17
29
21
34

High Clouds (% Sky Obscured)

28
69
65
100
87
100
100
100
55
34
1
1
0
0
0
0
0
0
0
0
1
0
2
6

ISS Passover

Visibility (miles)

6
9
9
6
9
9
9
3
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
Light Rain
Light Rain
Light Rain
None
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

26
44
69
75
79
46
71
69
14
21
9
12
3
0
0
0
0
0
0
0
1
4
4
4

Precipitation Amount (mm)

0
0
1.2
0.4
0.5
0
0.4
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
6
6
9
8
6
7
8
8
7
11
13
13
14
15
16
16
15
15
12
11
8
7
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

15
14
15
16
14
11
10
10
11
11
12
10
8
7
6
6
6
6
7
8
8
8
8
9

Relative Humidity (%)

81
77
85
88
83
75
73
75
86
84
79
66
56
49
41
39
39
40
44
50
54
57
61
69

Pressure (mb)

1011
1011
1012
1013
1013
1014
1015
1016
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1020
1021
1021

Ozone (du)

286
288
288
288
289
290
291
296
303
309
315
315
314
316
317
318
319
320
321
322
319
318
318
316

Saturday 5

Waning Crescent 28%

23:38

17:25

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

Sun - Rise: 06:18, Set: 19:29, Transit: 12:54. Moon - Rise: 23:38, Set: 17:25. Civil Dark: 20:03 - 05:45. Nautical Dark: 20:43 - 05:04. Astro Dark: 21:27 - 04:21

Total Clouds (% Sky Obscured)

29
67
48
18
37
54
41
42
32
46
77
66
86
86
71
45
44
56
66
38
53
69
38
32

Low Clouds (% Sky Obscured)

20
30
30
15
36
24
41
33
32
37
51
56
35
42
62
45
44
56
35
38
42
31
23
0

Medium Clouds (% Sky Obscured)

17
31
20
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
2

High Clouds (% Sky Obscured)

3
32
15
5
7
49
2
16
2
12
36
19
82
81
38
5
1
9
23
5
12
31
12
21

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 (%)

1
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)

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

Chance of Frost

Temperature (°C)

14
13
12
12
11
10
9
9
9
11
13
14
16
17
18
18
18
19
18
17
16
13
12
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
76
77
83
84
87
90
91
91
80
70
57
48
43
39
39
38
37
39
49
61
69
72
72

Pressure (mb)

1022
1023
1023
1024
1024
1024
1025
1025
1026
1026
1026
1027
1026
1026
1026
1026
1026
1026
1025
1025
1026
1027
1027
1027

Ozone (du)

314
313
312
311
310
308
307
307
307
306
305
304
303
302
301
300
299
300
298
296
294
292
292
291

Sunday 6

Waning Crescent 18%

00:58

17:59

23 Bad
00 OK
01 OK
02 Bad
03 OK
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
22 OK

Sun - Rise: 06:20, Set: 19:27, Transit: 12:53. Moon - Rise: 00:58, Set: 17:59. Civil Dark: 20:01 - 05:46. Nautical Dark: 20:41 - 05:06. Astro Dark: 21:24 - 04:23

Total Clouds (% Sky Obscured)

49
28
46
50
45
56
100
100
100
100
100
100
100
100
100
97
100
66
73
73
66
54
46
32

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
31
2
0
1
0
0
0
0
12
24
34
29
23
19

Medium Clouds (% Sky Obscured)

5
4
2
21
11
3
34
55
58
84
56
83
100
76
87
56
51
44
41
41
43
35
28
21

High Clouds (% Sky Obscured)

39
19
31
35
30
48
100
100
100
100
99
100
100
100
100
89
100
62
53
35
8
7
6
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 (%)

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

Chance of Frost

Temperature (°C)

10
10
9
9
9
10
10
10
11
12
14
15
17
18
19
20
20
20
21
20
18
17
16
15

Feels Like (°C)

9
8
9
8
8
8
8
9
10
11
12
13
14
15
16
17
18
18
20
20
18
17
17
16

Dew Point (°C)

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

Relative Humidity (%)

73
73
73
73
73
73
69
71
68
63
60
58
50
48
46
43
43
44
43
50
58
61
63
65

Pressure (mb)

1027
1027
1027
1027
1026
1026
1026
1025
1025
1025
1025
1025
1024
1024
1023
1022
1022
1021
1020
1020
1020
1020
1019
1019

Ozone (du)

290
289
288
287
287
287
288
288
289
291
291
293
292
291
290
291
291
291
290
290
290
290
291
292

Monday 7

Waning Crescent 10%

02:25

18:24

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

Sun - Rise: 06:21, Set: 19:25, Transit: 12:53. Moon - Rise: 02:25, Set: 18:24. Civil Dark: 19:58 - 05:48. Nautical Dark: 20:38 - 05:08. Astro Dark: 21:21 - 04:25

Total Clouds (% Sky Obscured)

31
15
35
56
77
93
72
46
38
42
53
78
76
73
64
80
87
97
98
99
100
100
100
100

Low Clouds (% Sky Obscured)

13
7
0
9
19
28
19
9
0
0
0
0
7
12
19
25
34
44
52
60
62
48
41
30

Medium Clouds (% Sky Obscured)

13
8
2
10
21
32
28
22
18
15
13
9
12
16
18
25
31
38
37
34
34
41
49
57

High Clouds (% Sky Obscured)

7
2
30
51
69
88
65
41
26
32
43
70
64
60
53
70
72
85
89
95
92
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
7
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
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

4
1
0
3
4
2
7
6
0
0
0
0
0
1
2
5
7
14
22
36
54
66
71
66

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
15
14
14
14
14
13
14
14
16
18
20
21
23
24
25
25
25
25
24
22
20
19
18

Feels Like (°C)

16
15
15
13
12
12
13
14
15
18
18
20
20
21
23
24
24
25
25
25
23
21
19
18

Dew Point (°C)

9
9
8
8
8
8
8
8
9
9
10
10
12
13
13
14
14
14
14
15
15
14
14
15

Relative Humidity (%)

67
67
67
67
67
67
68
69
69
63
58
55
54
53
51
50
48
48
50
59
64
70
75
81

Pressure (mb)

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

Ozone (du)

293
293
293
294
295
295
296
297
294
292
292
292
291
291
290
290
290
290
289
290
290
291
292
291

Tuesday 8

Waning Crescent 4%

03:53

18:42

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
22 Bad

Sun - Rise: 06:23, Set: 19:23, Transit: 12:53. Moon - Rise: 03:53, Set: 18:42. Civil Dark: 19:56 - 05:50. Nautical Dark: 20:36 - 05:10. Astro Dark: 21:19 - 04:27

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99
99
99
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

39
48
53
83
63
85
87
83
81
88
94
100
95
91
87
80
74
67
58
49
38
38
33
31

Medium Clouds (% Sky Obscured)

54
93
89
100
100
100
100
100
100
100
100
100
99
98
96
97
97
98
99
99
100
100
100
100

High Clouds (% Sky Obscured)

100
100
100
79
100
100
100
98
100
99
98
96
80
64
44
53
67
80
87
93
100
100
100
100

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

76
78
62
72
92
95
95
95
95
95
95
95
95
95
95
95
95
86
75
63
52
42
42
39

Precipitation Amount (mm)

0.5
0.4
0.2
0.3
0.6
0.7
2
1.2
1.6
1.3
1
0.8
1.9
2.5
2.5
1.9
0.9
0.7
0.5
0.3
0.2
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

15
15
15
15
15
15
15
15
15
14
15
15
15
14
12
11
10
9
8
8
9
9
9
9

Relative Humidity (%)

86
92
93
92
92
96
96
96
95
93
95
93
92
86
78
73
68
66
61
68
72
79
79
81

Pressure (mb)

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

Ozone (du)

291
290
290
290
290
291
291
291
290
291
292
292
293
294
294
295
296
296
297
298
300
301
304
307

Wednesday 9

Waning Crescent 1%

05:18

18:58

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
22 Bad

Sun - Rise: 06:24, Set: 19:21, Transit: 12:52. Moon - Rise: 05:18, Set: 18:58. Civil Dark: 19:54 - 05:51. Nautical Dark: 20:34 - 05:11. Astro Dark: 21:16 - 04:29

Total Clouds (% Sky Obscured)

100
100
100
96
92
84
77
71
65
78
90
100
100
100
100
100
100
100
97
95
91
87
84
81

Low Clouds (% Sky Obscured)

31
26
26
29
36
50
57
64
64
59
54
40
34
24
12
11
11
13
14
12
10
7
4
0

Medium Clouds (% Sky Obscured)

96
92
88
80
73
55
33
15
0
0
0
0
7
16
24
24
22
20
29
39
46
35
20
9

High Clouds (% Sky Obscured)

100
100
100
96
92
79
68
56
44
65
83
100
100
100
100
100
100
100
96
92
88
82
78
75

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 (%)

27
17
9
6
2
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
2
2
2
2
2
2
2
2
1
3
4
6
6
7
7
7
6
6
4
3
2
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
84
86
87
88
91
93
91
88
86
75
64
57
53
49
45
46
46
47
52
58
65
66
68

Pressure (mb)

1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019

Ozone (du)

309
312
314
316
317
318
319
318
317
316
315
314
313
312
312
312
312
312
313
313
312
312
314
316

Thursday 10

Waning Crescent 0%

06:40

19:11

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: 06:26, Set: 19:18, Transit: 12:52. Moon - Rise: 06:40, Set: 19:11. Civil Dark: 19:51 - 05:53. Nautical Dark: 20:31 - 05:13. Astro Dark: 21:13 - 04:31

Total Clouds (% Sky Obscured)

77
75
70
82
91
100
100
99
98
99
99
100
100
100
100

Low Clouds (% Sky Obscured)

0
1
1
2
2
3
2
2
2
2
1
1
10
20
29

Medium Clouds (% Sky Obscured)

27
47
70
66
65
55
45
45
45
46
49
55
59
62
70

High Clouds (% Sky Obscured)

70
66
60
76
88
100
99
98
97
98
99
100
100
100
100

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
1
1
1
2
1
1
2
3
12

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

2
2
3
3
3
3
3
3
4
4
5
7
9
9
10

Chance of Frost

Temperature (°C)

11
10
10
10
10
10
9
10
11
11
13
15
16
17
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
73
74
78
78
81
81
80
78
76
71
66
61
60
59

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019

Ozone (du)

319
316
313
311
308
305
302
300
299
297
295
293
291
289
287

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

Generated: 04/09/26 23:33:59. Forecast: 04/09/26 to 10/09/26. Timezone: UTC+2.00