Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 30

Waning Gibbous 91%

20:16

10:00

17 Bad
18 Bad
19 OK
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
14 Bad
15 Bad
16 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)

74
60
36
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
87
60
67
76
30

Low Clouds (% Sky Obscured)

26
11
0
0
13
16
21
23
32
18
20
14
25
19
3
53
72
85
88
70
55
56
46
30

Medium Clouds (% Sky Obscured)

2
0
0
0
0
20
32
40
50
32
0
14
42
36
69
82
100
100
95
33
0
0
28
0

High Clouds (% Sky Obscured)

24
2
32
100
100
100
100
100
100
100
100
100
100
100
99
100
100
100
100
40
2
15
2
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
2
1
0
4
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
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
1
4
43
95
95
95
95
31
25
42
34
37

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1.9
2
2.2
0.9
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

14
13
14
13
12
11
12
12
12
12
13
12
13
13
13
14
17
17
16
16
16
16
16
14

Relative Humidity (%)

54
53
58
65
64
64
68
71
75
78
82
83
85
87
86
82
95
98
98
93
85
76
73
62

Pressure (mb)

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

Ozone (du)

298
298
296
295
295
295
296
297
297
296
296
295
294
293
292
292
292
293
296
298
302
303
305
308

Monday 31

Waning Gibbous 84%

20:30

11:22

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

Sun - Rise: 06:11, Set: 19:42, Transit: 12:55. Moon - Rise: 20:30, Set: 11:22. Civil Dark: 20:16 - 05:37. Nautical Dark: 20:58 - 04:55. Astro Dark: 21:44 - 04:10

Total Clouds (% Sky Obscured)

31
56
52
45
45
58
0
0
1
3
0
8
22
31
30
49
97
100
96
100
100
100
97
89

Low Clouds (% Sky Obscured)

31
42
34
5
30
16
0
0
0
3
0
8
22
31
30
31
38
47
49
58
27
51
9
57

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
61
52
27
1
6

High Clouds (% Sky Obscured)

0
0
50
45
45
50
0
0
1
0
0
0
0
0
0
19
92
99
84
100
100
99
95
66

ISS Passover

Visibility (miles)

7
8
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

Very Light Rain
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 (%)

44
16
0
0
3
1
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.3
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)

10
9
6
3
4
3
4
3
3
3
4
4
3
4
4
6
9
10
11
12
12
12
11
10

Chance of Frost

Temperature (°C)

22
22
21
19
17
17
16
15
14
13
13
12
12
11
12
14
15
17
18
19
19
20
21
21

Feels Like (°C)

22
23
21
19
17
16
15
16
15
14
13
13
12
12
12
14
14
14
14
15
16
17
18
18

Dew Point (°C)

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

Relative Humidity (%)

62
68
75
75
78
72
77
82
86
89
90
92
95
95
93
86
76
67
61
55
53
51
48
46

Pressure (mb)

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

Ozone (du)

308
306
305
307
309
312
317
320
326
327
327
327
323
318
315
313
313
312
311
311
312
312
310
310

Tuesday 1

Waning Gibbous 74%

20:48

12:47

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
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:12, Set: 19:40, Transit: 12:55. Moon - Rise: 20:48, Set: 12:47. Civil Dark: 20:14 - 05:38. Nautical Dark: 20:56 - 04:57. Astro Dark: 21:41 - 04:12

Total Clouds (% Sky Obscured)

62
58
94
91
59
91
88
75
58
55
81
79
81
68
80
76
71
61
66
76
99
100
100
99

Low Clouds (% Sky Obscured)

24
10
24
10
0
8
45
55
55
50
71
73
54
23
28
32
23
19
34
47
62
58
57
56

Medium Clouds (% Sky Obscured)

3
0
31
35
2
59
44
22
10
7
29
29
26
20
7
3
3
0
2
21
32
39
62
86

High Clouds (% Sky Obscured)

62
58
32
35
51
28
51
40
35
8
27
24
35
30
30
47
55
48
50
43
61
84
97
96

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
16
36
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
1
0
0
0
0
3
16
5
13
3
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
11
13
12
11
11
10
9
9
9
8
8
8
9
9
10
10
11
10
9
9
9
10
11

Relative Humidity (%)

49
56
67
72
75
78
79
73
73
71
71
71
72
79
80
75
68
64
58
51
48
49
53
57

Pressure (mb)

1019
1019
1019
1020
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1023
1023
1022
1022
1022
1021
1021
1021

Ozone (du)

311
310
309
309
312
312
311
312
311
311
311
312
312
314
315
316
317
316
313
312
311
312
314
316

Wednesday 2

Waning Gibbous 63%

21:12

14:11

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

Sun - Rise: 06:14, Set: 19:38, Transit: 12:55. Moon - Rise: 21:12, Set: 14:11. Civil Dark: 20:12 - 05:40. Nautical Dark: 20:53 - 04:59. Astro Dark: 21:38 - 04:14

Total Clouds (% Sky Obscured)

78
55
34
34
39
40
30
20
35
35
21
8
12
12
17
36
74
98
99
99
100
100
100
97

Low Clouds (% Sky Obscured)

28
18
4
9
28
29
18
8
1
5
2
0
5
9
13
13
19
15
12
15
17
20
23
44

Medium Clouds (% Sky Obscured)

72
54
12
3
4
2
1
1
1
2
2
2
2
1
0
0
0
2
20
39
58
47
52
45

High Clouds (% Sky Obscured)

75
21
27
26
1
0
0
2
30
3
2
2
4
2
5
27
65
96
97
99
100
100
100
92

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 (%)

2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
11
5
10
8
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)

6
4
3
2
2
3
3
3
3
3
2
2
1
1
1
2
3
6
9
10
11
11
11
11

Chance of Frost

Temperature (°C)

20
20
18
16
15
15
14
13
13
12
13
12
11
12
12
14
16
17
19
19
20
20
20
21

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

54
57
64
69
70
70
70
72
75
80
72
77
80
81
80
71
64
59
55
52
47
45
43
46

Pressure (mb)

1020
1020
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1020
1020
1019
1019
1018

Ozone (du)

318
319
317
314
313
314
313
312
310
308
307
304
301
300
301
301
300
300
300
299
300
306
309
307

Thursday 3

Waning Gibbous 52%

21:45

15:30

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
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:15, Set: 19:36, Transit: 12:54. Moon - Rise: 21:45, Set: 15:30. Civil Dark: 20:10 - 05:42. Nautical Dark: 20:51 - 05:01. Astro Dark: 21:35 - 04:16

Total Clouds (% Sky Obscured)

100
100
100
99
98
93
97
97
97
98
99
100
98
97
95
93
86
80
78
78
77
78
79
80

Low Clouds (% Sky Obscured)

62
72
69
68
52
45
30
22
13
31
52
65
64
66
63
79
79
78
65
51
37
38
39
41

Medium Clouds (% Sky Obscured)

31
85
55
87
43
43
46
58
90
91
92
63
58
35
25
41
32
21
26
33
41
44
47
51

High Clouds (% Sky Obscured)

92
99
98
80
62
40
53
62
72
62
51
45
48
47
51
34
18
2
12
22
30
22
16
9

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 (%)

2
1
0
1
3
1
2
2
2
11
16
18
21
18
6
56
56
47
37
23
5
10
9
9

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)

10
7
5
4
6
5
5
7
6
5
5
5
6
6
5
6
7
9
11
12
13
14
12
12

Chance of Frost

Temperature (°C)

21
19
19
17
17
16
16
16
15
15
14
14
14
14
14
15
16
17
18
20
21
23
23
23

Feels Like (°C)

18
18
17
16
15
15
14
13
13
13
13
14
13
13
14
14
14
14
14
15
16
17
22
21

Dew Point (°C)

9
10
10
11
11
11
10
10
11
12
13
13
13
13
14
13
12
12
11
11
11
11
11
11

Relative Humidity (%)

47
55
57
67
65
71
68
67
74
83
89
93
95
96
95
87
78
71
64
57
51
47
46
45

Pressure (mb)

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

Ozone (du)

307
305
303
301
302
300
301
300
298
297
294
292
291
289
287
286
285
284
283
282
281
280
281
281

Friday 4

Third Quarter 40%

22:33

16:36

17 Bad
18 OK
19 OK
20 OK
21 Good
22 Good
23 OK
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

Sun - Rise: 06:17, Set: 19:34, Transit: 12:54. Moon - Rise: 22:33, Set: 16:36. Civil Dark: 20:07 - 05:43. Nautical Dark: 20:48 - 05:02. Astro Dark: 21:33 - 04:18

Total Clouds (% Sky Obscured)

63
44
28
21
14
6
31
56
84
82
80
79
76
74
74
80
87
95
95
95
95
97
99
100

Low Clouds (% Sky Obscured)

29
18
6
4
1
0
15
31
47
43
39
34
36
35
36
42
48
58
61
70
83
84
83
79

Medium Clouds (% Sky Obscured)

41
31
21
15
10
4
13
22
31
21
12
2
2
2
2
25
48
70
73
76
81
84
89
92

High Clouds (% Sky Obscured)

6
3
1
1
1
1
22
43
64
60
55
50
54
66
74
80
87
91
85
79
81
90
96
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
8
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

None
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
Very Light Rain

Precipitation Probability (%)

11
7
0
2
2
0
14
18
18
33
37
38
34
32
31
42
48
48
51
55
64
77
81
84

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.3
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

23
22
21
20
19
18
17
17
17
17
16
16
15
15
16
16
17
18
19
19
19
20
20
19

Feels Like (°C)

20
20
21
22
18
19
20
20
19
19
17
18
17
17
16
16
17
18
19
18
19
20
19
18

Dew Point (°C)

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

Relative Humidity (%)

46
50
57
63
68
71
76
76
76
76
81
86
90
90
89
87
88
88
88
88
89
92
89
88

Pressure (mb)

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

Ozone (du)

281
280
279
278
279
280
281
282
283
284
283
282
282
283
284
284
286
287
288
289
290
291
293
295

Saturday 5

Waning Crescent 28%

23:38

No Set

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: 06:18, Set: 19:32, Transit: 12:54. Moon - Rise: 23:38, Set: No Set. Civil Dark: 20:05 - 05:45. Nautical Dark: 20:46 - 05:04. Astro Dark: 21:30 - 04:21

Total Clouds (% Sky Obscured)

100
99
99
93
87
83
80
77
73
67
58
45
45
49
50
55
58
64
61
58
51

Low Clouds (% Sky Obscured)

64
52
40
30
21
10
21
30
43
38
33
30
35
34
30
30
29
29
26
23
20

Medium Clouds (% Sky Obscured)

82
70
61
52
55
50
60
65
70
52
38
21
14
10
7
7
7
9
7
5
3

High Clouds (% Sky Obscured)

95
90
85
74
58
41
29
20
13
11
8
5
10
12
16
29
41
54
52
48
42

ISS Passover

Visibility (miles)

4
6
8
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

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

Precipitation Probability (%)

75
63
45
43
42
40
38
37
37
32
26
17
14
8
0
2
2
1
2
3
0

Precipitation Amount (mm)

0.3
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

17
17
16
15
15
14
14
14
13
12
12
12
11
11
10
9
8
7
6
5
5

Relative Humidity (%)

86
88
89
92
92
92
93
90
87
86
87
90
93
90
86
83
71
61
53
48
44

Pressure (mb)

1016
1016
1017
1017
1018
1018
1018
1019
1019
1019
1020
1020
1021
1022
1022
1023
1023
1023
1023
1023
1023

Ozone (du)

297
301
305
308
311
314
317
318
319
320
321
322
323
323
323
323
321
320
319
317
315

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

Generated: 30/08/26 17:02:00. Forecast: 30/08/26 to 05/09/26. Timezone: UTC+2.00