Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 24

Waxing Gibbous 89%

18:38

02:24

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

Sun - Rise: 06:00, Set: 19:57, Transit: 12:58. Moon - Rise: 18:38, Set: 02:24. Civil Dark: 20:32 - 05:25. Nautical Dark: 21:16 - 04:42. Astro Dark: 22:04 - 03:54

Total Clouds (% Sky Obscured)

32
35
37
62
70
51
99
100
100
98
47
36
66
84
100
75
36
79
100
98
79
52
81
87

Low Clouds (% Sky Obscured)

32
35
37
24
38
51
40
20
6
0
0
0
0
0
0
0
0
0
0
0
0
15
31
47

Medium Clouds (% Sky Obscured)

0
0
23
45
53
41
0
0
0
0
0
0
1
1
16
35
28
30
30
35
1
6
32
54

High Clouds (% Sky Obscured)

0
0
0
0
2
7
96
100
100
97
47
36
66
73
100
75
33
55
69
79
79
46
50
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 (%)

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
3
3
3
1
4
7
8
7
7
6
6
6
6
7
7
7
7
7
8
10
12
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
19
20
20
20
21
20
17
15
13
11
11
10
10
11
10
9
10
9
9
10
11
12
13

Dew Point (°C)

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

Relative Humidity (%)

49
47
43
42
41
42
44
52
63
71
74
79
80
80
81
80
77
80
83
83
80
70
63
57

Pressure (mb)

1023
1022
1022
1021
1021
1021
1021
1021
1020
1020
1020
1021
1021
1021
1020
1019
1019
1019
1018
1018
1018
1018
1017
1017

Ozone (du)

338
337
334
331
331
332
328
324
320
317
317
315
313
314
315
315
314
313
312
312
312
312
312
314

Tuesday 25

Waxing Gibbous 95%

19:02

03:38

11 Bad
12 OK
13 OK
14 OK
15 OK
16 OK
17 OK
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

Sun - Rise: 06:01, Set: 19:55, Transit: 12:58. Moon - Rise: 19:02, Set: 03:38. Civil Dark: 20:30 - 05:27. Nautical Dark: 21:13 - 04:44. Astro Dark: 22:01 - 03:56

Total Clouds (% Sky Obscured)

74
37
38
29
37
37
32
72
76
80
75
94
92
89
73
64
67
78
56
61
60
60
55
55

Low Clouds (% Sky Obscured)

23
34
38
4
0
0
0
0
0
3
8
6
22
28
31
30
29
32
31
36
37
27
44
39

Medium Clouds (% Sky Obscured)

58
28
27
25
34
37
32
30
34
39
31
37
39
35
57
41
50
56
56
56
50
50
46
44

High Clouds (% Sky Obscured)

50
0
0
0
0
0
0
50
50
55
50
82
89
84
47
50
50
26
0
0
0
60
55
55

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
1
2
6
18
27
16
15

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)

14
14
13
13
12
12
12
11
10
8
7
7
6
6
6
6
6
6
6
6
5
5
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

52
50
47
45
44
45
46
52
63
72
77
79
80
82
84
86
86
86
87
87
86
74
62
53

Pressure (mb)

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

Ozone (du)

318
323
318
318
317
318
318
316
314
315
315
315
316
315
315
314
314
314
314
314
314
313
312
310

Wednesday 26

Waxing Gibbous 98%

19:21

04:54

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

Sun - Rise: 06:03, Set: 19:53, Transit: 12:57. Moon - Rise: 19:21, Set: 04:54. Civil Dark: 20:28 - 05:29. Nautical Dark: 21:11 - 04:46. Astro Dark: 21:59 - 03:58

Total Clouds (% Sky Obscured)

55
42
53
61
100
100
100
63
28
40
51
90
86
55
42
77
76
76
81
92
83
71
60
20

Low Clouds (% Sky Obscured)

34
32
38
27
31
28
32
23
18
37
39
38
34
33
27
21
13
25
34
53
48
43
31
19

Medium Clouds (% Sky Obscured)

45
22
37
26
35
45
50
36
12
3
14
17
7
12
20
23
26
26
23
29
10
5
5
0

High Clouds (% Sky Obscured)

41
19
36
61
98
100
100
16
1
0
2
33
34
8
22
52
54
54
57
63
63
57
42
5

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 (%)

15
3
3
1
1
2
3
3
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

48
44
41
39
38
39
40
46
54
60
61
62
64
66
67
68
69
69
71
70
70
65
58
52

Pressure (mb)

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

Ozone (du)

307
305
304
305
304
303
302
301
300
299
297
296
295
294
295
294
293
294
294
294
294
294
295
295

Thursday 27

Waxing Gibbous 100%

19:37

06:09

11 OK
12 OK
13 OK
14 Good
15 OK
16 OK
17 OK
18 Good
19 Good
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

Sun - Rise: 06:05, Set: 19:51, Transit: 12:57. Moon - Rise: 19:37, Set: 06:09. Civil Dark: 20:25 - 05:30. Nautical Dark: 21:08 - 04:48. Astro Dark: 21:56 - 04:01

Total Clouds (% Sky Obscured)

36
21
21
18
41
20
23
14
16
59
71
82
89
94
100
98
91
65
84
62
72
60
60
86

Low Clouds (% Sky Obscured)

20
21
21
18
16
13
9
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
2
0
0
0
0
0
0
0
0
0
0
2
4
6
24
53
62
83
47
38
33
27
21

High Clouds (% Sky Obscured)

20
3
3
3
16
6
10
11
15
55
67
80
87
94
100
91
71
43
42
33
55
38
43
77

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)

7
6
6
7
7
7
7
6
5
5
4
4
4
4
4
4
4
4
4
4
4
5
10
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

21
22
25
26
26
25
26
25
24
21
18
17
16
16
15
16
16
17
19
18
19
21
21
22

Dew Point (°C)

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

Relative Humidity (%)

46
41
39
36
36
36
39
47
59
64
63
64
66
69
69
71
71
70
71
70
68
57
46
43

Pressure (mb)

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

Ozone (du)

295
295
295
295
295
296
295
296
294
292
291
289
289
288
288
288
288
286
287
285
285
285
285
285

Friday 28

Full Moon 99%

19:50

07:25

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
09 Bad
10 Bad

Sun - Rise: 06:06, Set: 19:49, Transit: 12:57. Moon - Rise: 19:50, Set: 07:25. Civil Dark: 20:23 - 05:32. Nautical Dark: 21:06 - 04:50. Astro Dark: 21:53 - 04:03

Total Clouds (% Sky Obscured)

73
66
100
100
74
96
89
100
100
100
100
100
100
100
100
100
100
100
98
96
95
95
95
96

Low Clouds (% Sky Obscured)

0
0
0
3
7
9
18
44
33
37
40
51
51
47
83
81
78
77
76
78
80
77
75
74

Medium Clouds (% Sky Obscured)

18
16
15
18
20
22
23
39
69
59
81
84
92
92
100
98
97
95
91
87
86
88
89
90

High Clouds (% Sky Obscured)

70
66
100
100
74
96
89
100
100
100
100
100
100
100
100
96
92
87
63
37
9
9
8
10

ISS Passover

Visibility (miles)

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

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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
21
36
65
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.2
0.8
1.3
1.4
1.7
2
1.9
1.1
1.3
1.3
1.1
1.5
1.8
1.6
1.7
1.9

Wind Speed/Direction (mph)

12
12
12
11
10
9
7
5
5
7
6
4
2
1
2
3
4
5
5
7
8
9
9
8

Chance of Frost

Temperature (°C)

25
26
27
28
29
29
29
27
24
21
20
19
18
18
17
17
17
17
17
16
16
16
16
17

Feels Like (°C)

22
24
25
25
25
27
27
27
24
21
20
20
19
19
18
18
18
18
18
18
18
19
15
15

Dew Point (°C)

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

Relative Humidity (%)

42
41
38
36
34
36
38
46
58
73
91
93
93
93
96
95
96
95
95
95
96
96
96
96

Pressure (mb)

1011
1011
1010
1009
1009
1009
1009
1009
1009
1009
1010
1010
1010
1010
1011
1011
1011
1011
1011
1012
1012
1013
1013
1013

Ozone (du)

285
286
287
286
286
286
285
285
286
287
288
290
291
294
296
298
300
303
305
307
310
312
315
319

Saturday 29

Waning Gibbous 96%

20:03

08:42

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

Sun - Rise: 06:08, Set: 19:47, Transit: 12:56. Moon - Rise: 20:03, Set: 08:42. Civil Dark: 20:21 - 05:33. Nautical Dark: 21:03 - 04:52. Astro Dark: 21:50 - 04:05

Total Clouds (% Sky Obscured)

97
99
100
86
72
62
43
25
7
14
19
25
42
62
87
63
40
16
30
43
53
71
85
97

Low Clouds (% Sky Obscured)

76
72
69
61
50
39
28
16
4
10
17
24
17
10
3
3
2
1
12
24
35
40
44
49

Medium Clouds (% Sky Obscured)

80
66
50
42
31
24
16
9
0
1
1
1
1
1
0
1
1
2
7
11
16
23
34
46

High Clouds (% Sky Obscured)

37
68
100
67
36
4
4
5
5
5
5
8
33
57
72
55
40
16
30
43
53
64
72
75

ISS Passover

Visibility (miles)

1
4
7
9
8
6
4
6
8
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

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

Precipitation Probability (%)

95
94
61
59
64
59
51
54
48
28
21
16
15
10
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

1.1
0.6
0
0
0.3
0.3
0
0.3
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
9
9
9
9
9
9
7
5
3
2
2
2
2
1
2
2
2
3
2
2
2
3
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
89
82
76
72
70
67
71
76
81
79
79
80
82
86
89
90
93
93
93
90
90
82
74

Pressure (mb)

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

Ozone (du)

323
323
324
324
325
325
326
327
328
328
328
327
326
325
323
322
319
315
312
310
309
307
306
305

Sunday 30

Waning Gibbous 91%

20:16

10:00

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: 06:09, Set: 19:45, Transit: 12:56. Moon - Rise: 20:16, Set: 10:00. Civil Dark: 20:19 - 05:35. Nautical Dark: 21:01 - 04:53. Astro Dark: 21:47 - 04:08

Total Clouds (% Sky Obscured)

90
84
79
74
69
66
60
54
48
51
55
58
73
86
96
94
92
90
91
93
96

Low Clouds (% Sky Obscured)

51
45
39
43
56
66
57
44
30
23
16
10
9
9
10
15
60
79
83
80
73

Medium Clouds (% Sky Obscured)

49
48
44
30
16
5
6
7
7
6
5
3
16
39
67
67
68
64
56
43
31

High Clouds (% Sky Obscured)

52
35
12
8
5
0
6
11
12
19
26
29
52
77
92
90
88
86
76
66
56

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

Fog (%)

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
Very Light Rain
None
None
None

Precipitation Probability (%)

6
6
3
7
9
11
19
19
7
10
8
0
0
0
1
22
37
51
48
44
40

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
15
16
16
21
21
21
20
20
20
17
18
18
18
18
17
13
13
13
13
13

Dew Point (°C)

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

Relative Humidity (%)

69
63
58
53
58
63
67
71
76
79
82
83
85
87
89
89
90
90
90
86
82

Pressure (mb)

1017
1016
1016
1016
1016
1016
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015

Ozone (du)

304
304
305
305
303
302
300
299
297
295
294
293
291
291
290
289
290
291
292
292
293

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

Generated: 24/08/26 11:09:14. Forecast: 24/08/26 to 30/08/26. Timezone: UTC+2.00