Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 27

Waning Gibbous 98%

18:37

07:42

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

Sun - Rise: 06:52, Set: 18:43, Transit: 12:46. Moon - Rise: 18:37, Set: 07:42. Civil Dark: 19:15 - 06:19. Nautical Dark: 19:53 - 05:41. Astro Dark: 20:32 - 05:02

Total Clouds (% Sky Obscured)

76
81
82
88
97
88
65
28
21
18
8
5
5
5
2
2
4
5
8
8
8
8
10
10

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)

76
81
82
85
84
84
43
24
18
12
5
0
0
0
0
0
0
0
0
0
0
2
2
2

High Clouds (% Sky Obscured)

76
75
39
39
83
33
13
4
3
3
1
2
3
3
2
2
3
3
6
6
5
5
6
6

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

Chance of Frost

Temperature (°C)

7
9
12
15
16
17
18
19
19
19
19
17
14
13
12
11
10
10
10
10
10
10
10
9

Feels Like (°C)

5
8
11
13
15
15
16
17
18
18
18
17
14
13
12
11
11
11
10
10
10
10
10
9

Dew Point (°C)

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

Relative Humidity (%)

70
68
61
56
51
48
43
40
38
39
46
59
65
69
71
71
72
72
72
71
69
69
69
69

Pressure (mb)

1026
1026
1026
1026
1026
1026
1026
1025
1025
1024
1024
1024
1025
1025
1025
1025
1026
1026
1025
1025
1025
1025
1025
1025

Ozone (du)

287
288
288
289
289
288
288
288
288
288
288
288
288
290
290
290
289
289
288
288
287
287
287
287

Monday 28

Waning Gibbous 93%

18:54

09:04

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

Sun - Rise: 06:53, Set: 18:40, Transit: 12:46. Moon - Rise: 18:54, Set: 09:04. Civil Dark: 19:13 - 06:21. Nautical Dark: 19:51 - 05:43. Astro Dark: 20:30 - 05:04

Total Clouds (% Sky Obscured)

9
22
22
15
15
21
24
25
23
14
7
4
9
24
18
9
2
2
9
24
29
34
20
12

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
4
8
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

2
2
2
2
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

5
20
20
11
12
19
17
12
20
13
6
3
8
24
17
8
1
2
8
20
24
28
18
10

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)

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

Chance of Frost

Temperature (°C)

9
11
14
16
18
19
20
20
21
20
20
18
15
14
13
12
12
12
12
11
11
11
11
11

Feels Like (°C)

9
11
14
16
17
17
18
18
19
19
19
18
15
14
12
12
13
12
12
11
11
11
11
11

Dew Point (°C)

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

Relative Humidity (%)

70
67
57
50
47
44
42
40
40
40
46
57
62
63
64
64
65
65
65
66
65
66
67
67

Pressure (mb)

1025
1025
1025
1025
1025
1025
1025
1024
1024
1024
1024
1024
1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1026
1027

Ozone (du)

287
286
285
284
284
284
284
283
282
282
281
280
280
279
279
279
280
281
280
280
280
281
280
281

Tuesday 29

Waning Gibbous 86%

19:16

10:30

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

Sun - Rise: 06:55, Set: 18:38, Transit: 12:46. Moon - Rise: 19:16, Set: 10:30. Civil Dark: 19:11 - 06:23. Nautical Dark: 19:49 - 05:45. Astro Dark: 20:28 - 05:06

Total Clouds (% Sky Obscured)

19
21
24
15
2
2
2
2
2
2
2
2
2
2
2
0
0
0
0
0
0
0
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)

18
21
24
14
1
2
2
2
2
2
2
2
2
2
2
0
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
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
3
3
5
9
10
10
10
9
9
7
4
4
4
4
4
3
4
3
4
4
4
4
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
65
53
45
41
39
36
36
35
38
43
52
56
58
58
57
57
58
57
58
60
61
62
62

Pressure (mb)

1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1026
1026
1027
1027
1028
1028
1028
1028
1028
1028
1028
1027
1027
1027

Ozone (du)

282
282
283
282
282
281
281
281
280
280
280
279
279
279
279
279
279
279
279
279
279
280
280
280

Wednesday 30

Waning Gibbous 77%

19:47

11:57

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

Sun - Rise: 06:57, Set: 18:36, Transit: 12:45. Moon - Rise: 19:47, Set: 11:57. Civil Dark: 19:08 - 06:24. Nautical Dark: 19:46 - 05:46. Astro Dark: 20:25 - 05:07

Total Clouds (% Sky Obscured)

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

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)

0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
1
2
2
2
2
2
2
2

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)

3
3
6
9
12
12
12
12
12
11
10
7
5
4
4
4
4
3
3
3
3
3
3
3

Chance of Frost

Temperature (°C)

10
11
14
16
18
19
20
20
20
20
20
18
16
14
14
13
13
13
13
12
12
12
12
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

66
64
55
48
44
42
40
39
38
40
45
54
61
63
64
63
63
63
65
65
64
65
65
66

Pressure (mb)

1028
1028
1028
1027
1027
1027
1027
1026
1026
1025
1025
1026
1026
1027
1027
1027
1027
1027
1027
1026
1026
1026
1026
1026

Ozone (du)

280
281
281
281
281
281
282
282
282
283
284
284
284
284
283
283
283
282
280
280
281
282
281
280

Thursday 1

Waning Gibbous 66%

20:30

13:19

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

Sun - Rise: 06:58, Set: 18:34, Transit: 12:45. Moon - Rise: 20:30, Set: 13:19. Civil Dark: 19:06 - 06:26. Nautical Dark: 19:44 - 05:48. Astro Dark: 20:23 - 05:09

Total Clouds (% Sky Obscured)

3
5
4
11
22
17
6
17
4
2
5
20
14
26
23
21
22
23
23
41
56
72
70
60

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)

2
3
2
10
18
13
4
16
3
1
4
15
9
18
17
19
22
22
21
31
37
41
31
27

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

Chance of Frost

Temperature (°C)

12
12
15
17
18
19
20
21
21
20
20
18
16
14
13
13
12
12
11
11
11
10
10
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
64
52
45
43
41
39
37
36
36
43
52
55
57
60
62
65
66
66
66
67
67
69
68

Pressure (mb)

1027
1027
1027
1027
1027
1027
1027
1026
1026
1026
1026
1027
1027
1028
1028
1028
1028
1029
1029
1029
1029
1029
1029
1029

Ozone (du)

280
281
282
282
282
282
282
282
282
284
285
286
286
286
286
286
286
285
284
283
283
283
282
283

Friday 2

Waning Gibbous 54%

21:30

14:30

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
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 OK
05 Bad
06 Bad

Sun - Rise: N/A, Set: 18:32, Transit: 12:45. Moon - Rise: 21:30, Set: 14:30. Civil Dark: 19:04 - 06:27. Nautical Dark: 19:42 - 05:49. Astro Dark: 20:20 - 05:11

Total Clouds (% Sky Obscured)

58
64
70
79
86
92
98
99
99
100
99
98
96
92
87
84
86
89
92
72
56
46
56
55

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
9
18
27
17
10

High Clouds (% Sky Obscured)

20
38
55
73
81
89
97
98
99
100
99
98
96
89
86
81
85
88
92
72
56
46
54
54

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)

1
1
2
3
5
5
5
6
4
3
2
1
2
3
3
2
2
2
3
3
3
3
3
3

Chance of Frost

Temperature (°C)

11
11
13
15
17
18
19
19
19
19
19
17
15
13
12
11
10
10
9
9
9
9
8
9

Feels Like (°C)

11
11
12
13
13
14
15
15
18
17
17
17
17
17
10
10
9
9
9
8
7
7
7
7

Dew Point (°C)

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

Relative Humidity (%)

68
68
61
56
50
45
41
37
40
41
44
47
51
55
55
57
59
60
60
61
62
62
63
63

Pressure (mb)

1029
1030
1030
1030
1030
1030
1029
1029
1029
1029
1029
1029
1029
1029
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030

Ozone (du)

283
283
283
284
284
284
285
286
286
286
287
288
288
289
290
291
292
293
293
294
295
296
296
298

Saturday 3

Third Quarter 52%

22:45

15:23

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

Sun - Rise: 07:00, Set: 18:29, Transit: 12:44. Moon - Rise: 22:45, Set: 15:23. Civil Dark: 19:02 - 06:29. Nautical Dark: 19:40 - 05:51. Astro Dark: 20:18 - 05:12

Total Clouds (% Sky Obscured)

57
43
28
12
10
5
0
0
0
0
0
0
0
11
24
36
26
13
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
7
13
22
16
8
0

Medium Clouds (% Sky Obscured)

2
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

57
40
24
9
6
4
0
0
0
0
0
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

Fog (%)

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

Precipitation Probability (%)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
6
9
11
12
13
14
16
22
22
21
21
21
20
11
11
11
10
11

Dew Point (°C)

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

Relative Humidity (%)

62
62
55
49
43
40
38
36
39
43
46
53
59
68
70
71
73
74
77

Pressure (mb)

1030
1030
1030
1030
1030
1029
1029
1028
1028
1028
1028
1028
1028
1029
1029
1029
1029
1029
1029

Ozone (du)

299
301
301
301
302
302
302
302
303
303
304
304
305
305
306
307
308
307
306

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

Generated: 27/09/26 06:51:15. Forecast: 27/09/26 to 03/10/26. Timezone: UTC+2.00