Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 28

Waning Gibbous 93%

18:54

09:04

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

7
7
8
6
13
11
13
7
46
43
42
27
16
4
4
4
21
30
23
11
22
32
14
2

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
4
5
11
9
11
5
42
41
41
24
12
2
2
2
19
26
20
9
20
31
13
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)

4
1
4
8
9
8
8
7
6
4
4
3
3
3
3
3
3
3
3
3
3
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
15
16
17
18
19
19
19
20
17
14
12
12
12
13
12
11
10
10
9
9
9
8
10

Dew Point (°C)

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

Relative Humidity (%)

56
50
45
44
42
40
39
39
45
56
60
62
62
64
64
64
65
65
66
65
66
67
66
62

Pressure (mb)

1026
1026
1026
1025
1025
1025
1024
1024
1024
1024
1025
1026
1026
1026
1026
1026
1026
1027
1027
1027
1027
1027
1027
1028

Ozone (du)

286
285
285
284
284
284
283
282
281
281
281
281
281
281
281
280
280
280
279
278
279
279
280
281

Tuesday 29

Waning Gibbous 86%

19:16

10:30

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

3
3
2
3
3
4
5
4
4
4
4
4
19
22
30
30
5
2
2
3
3
3
4
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)

2
2
1
2
2
4
5
3
2
2
3
3
18
21
21
26
5
2
2
2
3
3
4
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
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)

2
3
7
9
9
9
9
9
7
4
4
4
4
3
4
4
4
3
3
3
3
3
4
3

Chance of Frost

Temperature (°C)

14
17
19
20
20
21
21
21
20
18
15
14
13
12
11
11
11
10
10
10
10
9
9
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

53
45
41
39
38
36
36
38
43
54
57
58
58
57
56
56
56
56
57
57
57
58
60
60

Pressure (mb)

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

Ozone (du)

281
281
281
281
281
280
280
280
279
279
279
279
279
279
279
280
279
279
278
278
279
280
281
283

Wednesday 30

Waning Gibbous 77%

19:47

11:57

09 Good
10 Good
11 Good
12 Good
13 Good
14 OK
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

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)

2
5
10
6
4
22
44
59
53
75
100
100
100
100
100
100
100
100
100
100
97
94
91
77

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
4
10
6
3
22
44
59
49
73
100
100
100
100
100
100
100
100
100
100
97
94
91
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)

4
8
11
12
13
13
12
11
10
7
5
3
3
3
3
3
3
3
3
3
3
3
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

50
44
41
40
37
34
33
35
39
49
54
57
58
59
59
60
59
60
59
60
61
61
62
60

Pressure (mb)

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

Ozone (du)

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

Thursday 1

Waning Gibbous 66%

20:30

13:19

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 OK
06 OK
07 Good
08 OK

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)

65
55
69
85
98
90
82
73
80
87
94
95
97
98
99
99
100
77
50
20
20
20
15
44

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
9
36
46
37
30
36
55
55
44
55
55
38
38
20
20
20
15
44

High Clouds (% Sky Obscured)

65
52
69
85
98
90
82
72
78
86
93
95
97
98
99
99
100
77
50
20
20
12
10
36

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

51
46
44
42
39
37
35
36
44
51
55
58
59
61
61
62
60
60
61
61
62
62
64
61

Pressure (mb)

1027
1027
1027
1027
1027
1026
1026
1026
1026
1027
1027
1028
1028
1028
1029
1029
1029
1029
1029
1029
1030
1030
1030
1030

Ozone (du)

281
281
281
280
279
278
278
278
278
277
277
277
278
279
280
280
280
279
279
279
279
280
281
281

Friday 2

Waning Gibbous 54%

21:30

14:30

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

Sun - Rise: 07:00, 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)

37
36
36
35
35
35
40
40
40
50
50
47
44
37
28
18
8
8
9
13
13
17
24
23

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
3
6
8
10
13
8
8
9
13
13
17
24
23

Medium Clouds (% Sky Obscured)

37
36
36
35
35
35
30
16
11
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

28
30
36
35
35
35
40
40
40
50
50
47
44
37
27
14
0
0
0
0
0
0
0
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
4
6
6
6
6
4
3
2
2
2
3
3
3
3
3
3
3
4
4
4
4
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
49
44
40
37
35
37
39
41
45
48
51
53
55
57
57
58
58
59
59
59
60
59
59

Pressure (mb)

1030
1030
1031
1031
1030
1030
1030
1030
1030
1030
1031
1031
1032
1032
1032
1032
1033
1033
1033
1033
1033
1033
1033
1033

Ozone (du)

281
281
281
281
281
281
281
282
282
283
284
285
285
286
287
287
288
288
288
288
288
289
290
290

Saturday 3

Third Quarter 43%

22:45

15:23

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
07 Good
08 Good

Sun - Rise: 07:01, 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)

17
6
4
3
2
1
1
0
0
0
0
0
0
0
1
1
2
2
2
1
1
2
1
1

Low Clouds (% Sky Obscured)

13
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)

4
6
4
3
2
1
0
0
0
0
0
0
0
0
0
1
2
2
1
1
1
1
1
1

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
12
13
15
15
16
21
20
19
19
18
17
10
10
10
9
10
11
9
10
10
10
9
9

Dew Point (°C)

3
3
3
3
2
1
2
4
4
4
3
2
1
1
-1
-1
-0
0
-0
-1
-1
-1
-1
-1

Relative Humidity (%)

51
44
38
34
31
28
30
34
37
40
45
50
50
50
50
50
51
51
50
48
48
48
47
48

Pressure (mb)

1032
1032
1032
1031
1031
1030
1030
1030
1029
1030
1030
1030
1030
1030
1030
1030
1030
1030
1029
1029
1029
1029
1029
1029

Ozone (du)

291
292
293
293
294
295
295
295
295
294
294
293
294
294
294
294
294
294
293
293
292
291
291
290

Sunday 4

Waning Crescent 31%

00:09

16:01

Sun - Rise: 07:03, Set: 18:27, Transit: 12:44. Moon - Rise: 00:09, Set: 16:01. Civil Dark: 19:00 - 06:30. Nautical Dark: 19:37 - 05:53. Astro Dark: 20:16 - 05:14

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 28/09/26 09:15:29. Forecast: 28/09/26 to 04/10/26. Timezone: UTC+2.00