Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 26

Waxing Gibbous 82%

15:57

02:34

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

Sun - Rise: 04:54, Set: 20:52, Transit: 12:53. Moon - Rise: 15:57, Set: 02:34. Civil Dark: 21:34 - 04:11. Nautical Dark: 22:34 - 03:12. Astro Dark: 00:24 - 01:11

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
16
19
18
18
13
2
1
3
2
2
24
28
5
2
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
16
19
18
18
13
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
3
3
2
3
3
2
1
3
2
2
18
20
2
2
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)

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

Chance of Frost

Temperature (°C)

14
13
13
12
13
15
18
20
21
23
24
25
26
26
26
26
25
24
22
19
17
16
15
15

Feels Like (°C)

15
15
14
14
15
18
21
22
24
25
26
27
28
28
29
29
28
28
25
22
20
18
18
17

Dew Point (°C)

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

Relative Humidity (%)

79
82
82
83
82
74
70
65
58
51
47
45
44
44
46
49
54
67
72
75
77
77
78
79

Pressure (mb)

1030
1030
1030
1030
1030
1029
1029
1029
1029
1028
1028
1027
1027
1026
1025
1025
1024
1024
1024
1024
1024
1024
1023
1023

Ozone (du)

312
312
311
311
311
311
311
311
313
314
314
314
315
315
314
313
310
309
310
310
312
313
313
313

Wednesday 27

Waxing Gibbous 89%

17:09

02:47

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

Sun - Rise: 04:53, Set: 20:53, Transit: 12:53. Moon - Rise: 17:09, Set: 02:47. Civil Dark: 21:35 - 04:10. Nautical Dark: 22:36 - 03:10. Astro Dark: 00:35 - N/A

Total Clouds (% Sky Obscured)

1
1
2
23
14
48
7
6
38
37
31
28
48
20
11
4
3
2
0
0
1
0
2
1

Low Clouds (% Sky Obscured)

0
0
0
0
0
3
0
0
38
27
21
15
23
5
5
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
23
3
33
5
1
2
0
0
5
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

1
1
2
0
9
19
1
6
6
20
18
7
48
20
5
4
3
2
0
0
1
0
1
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
7
9
6
7
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
2
3
1
0
1
24
24
24
39
21
8
3
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
15
14
14
15
16
18
20
22
24
24
23
22
22
22
21
20
18
16
14
12
11
10
9

Feels Like (°C)

17
17
17
16
17
18
21
23
24
24
23
22
21
20
19
19
18
18
16
13
12
11
9
8

Dew Point (°C)

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

Relative Humidity (%)

83
86
86
89
86
79
72
67
57
50
49
56
62
56
48
50
48
51
61
63
68
73
72
73

Pressure (mb)

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

Ozone (du)

313
315
316
319
319
321
323
324
324
325
327
327
326
326
327
332
335
335
335
333
333
334
335
337

Thursday 28

Waxing Gibbous 94%

18:22

03:01

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

Sun - Rise: 04:52, Set: 20:54, Transit: 12:53. Moon - Rise: 18:22, Set: 03:01. Civil Dark: 21:37 - 04:09. Nautical Dark: 22:38 - 03:08. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

6
57
75
81
77
32
14
33
49
92
82
89
71
56
48
25
15
20
13
8
6
4
3
4

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
33
40
38
40
38
33
25
22
21
7
14
11
8
6
4
2
0

Medium Clouds (% Sky Obscured)

0
14
75
81
77
32
10
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

6
50
50
47
43
7
6
5
13
80
66
84
60
56
41
8
7
8
5
1
0
1
1
4

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)

5
4
4
3
3
2
1
2
2
3
4
5
6
6
6
9
8
7
5
4
4
4
4
4

Chance of Frost

Temperature (°C)

8
8
7
6
7
10
12
13
15
16
17
18
19
19
19
19
18
17
15
12
11
10
9
8

Feels Like (°C)

7
7
7
6
7
10
12
14
15
16
15
16
16
18
17
16
17
16
15
12
11
9
9
8

Dew Point (°C)

4
4
4
4
4
4
4
4
3
3
4
4
4
4
4
6
8
8
8
6
4
3
3
2

Relative Humidity (%)

75
78
82
84
79
68
59
52
46
43
40
40
38
35
37
44
51
56
64
63
64
64
65
65

Pressure (mb)

1023
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1022
1022
1021
1021
1021
1021
1021
1022
1022
1023
1024
1024
1024

Ozone (du)

335
335
335
334
334
336
337
338
337
337
338
337
339
339
340
341
342
342
342
341
342
344
343
342

Friday 29

Waxing Gibbous 98%

19:34

03:18

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

Sun - Rise: 04:51, Set: 20:55, Transit: 12:53. Moon - Rise: 19:34, Set: 03:18. Civil Dark: 21:38 - 04:08. Nautical Dark: 22:39 - 03:07. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

6
7
8
9
10
10
13
17
16
15
12
10
19
23
19
10
7
4
3
3
0
11
22
34

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
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
11
22
34

High Clouds (% Sky Obscured)

5
6
8
8
8
8
12
16
16
15
10
6
14
18
17
10
6
1
1
1
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)

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

Chance of Frost

Temperature (°C)

8
7
7
6
8
10
12
14
15
17
18
19
20
20
21
21
20
19
18
15
14
12
12
12

Feels Like (°C)

7
7
7
7
9
10
12
14
15
17
17
17
18
19
19
21
22
20
18
15
14
12
12
12

Dew Point (°C)

2
2
2
2
4
4
5
6
7
8
8
8
7
7
7
8
9
11
12
9
8
6
6
6

Relative Humidity (%)

66
69
71
75
75
67
63
60
57
54
51
47
44
42
40
42
49
59
66
68
69
67
66
66

Pressure (mb)

1024
1025
1025
1025
1025
1025
1025
1025
1024
1024
1023
1023
1022
1021
1021
1020
1020
1020
1020
1020
1020
1020
1019
1019

Ozone (du)

342
343
345
346
346
347
347
346
345
345
346
346
346
346
347
347
346
345
346
346
346
348
349
350

Saturday 30

Waxing Gibbous 100%

20:45

03:39

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

Sun - Rise: 04:50, Set: 20:56, Transit: 12:53. Moon - Rise: 20:45, Set: 03:39. Civil Dark: 21:39 - 04:07. Nautical Dark: 22:41 - 03:05. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

29
32
42
64
77
77
90
91
88
78
68
58
72
86
100
88
76
64
44
25
4
6
7
8

Low Clouds (% Sky Obscured)

4
7
11
17
21
26
19
14
9
8
7
6
18
29
41
44
50
38
22
11
1
3
6
8

Medium Clouds (% Sky Obscured)

29
25
14
33
57
44
32
74
74
26
16
30
35
40
45
51
43
36
28
15
1
1
0
0

High Clouds (% Sky Obscured)

1
5
10
29
41
61
57
42
27
28
33
34
59
80
100
71
38
5
2
1
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
13
15
6
14
24
37
35
40
43
42
40
33

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

Chance of Frost

Temperature (°C)

11
11
11
10
12
13
15
16
18
19
20
22
23
23
23
22
21
20
18
17
15
14
13
13

Feels Like (°C)

13
12
11
10
11
12
14
15
16
18
18
20
21
22
22
22
21
21
22
18
18
18
18
17

Dew Point (°C)

6
6
7
7
8
7
8
8
9
10
11
12
11
12
13
14
14
14
14
14
13
12
12
12

Relative Humidity (%)

71
73
78
80
77
69
62
58
56
54
54
52
46
49
53
57
63
69
77
81
85
89
90
92

Pressure (mb)

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

Ozone (du)

349
348
346
344
341
340
339
337
336
336
336
337
338
339
340
341
344
346
349
351
353
355
353
351

Sunday 31

Full Moon 100%

21:50

04:08

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
23 Bad
00 Bad
01 Bad

Sun - Rise: 04:49, Set: 20:57, Transit: 12:53. Moon - Rise: 21:50, Set: 04:08. Civil Dark: 21:41 - 04:06. Nautical Dark: 22:43 - 03:04. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

20
31
41
42
46
49
57
65
73
81
87
92
93
93
95
96
98
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

11
15
18
14
8
3
11
15
16
24
34
43
40
37
31
42
51
59
65
68
74
79
83
87

Medium Clouds (% Sky Obscured)

0
1
1
15
18
26
37
17
13
29
48
61
48
45
35
55
73
91
85
78
73
76
77
81

High Clouds (% Sky Obscured)

3
10
14
19
21
25
23
30
35
56
78
92
93
93
95
96
98
100
100
100
100
96
87
78

ISS Passover

Visibility (miles)

9
9
8
7
8
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
Very Light Rain
None
None
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

Precipitation Probability (%)

28
30
28
51
62
56
43
31
3
12
15
7
26
42
53
82
95
95
95
95
83
91
95
95

Precipitation Amount (mm)

0
0
0
0
0.3
0
0
0
0
0
0
0
0
0
0
0.3
0.7
1.4
1.5
1.1
0.5
0.6
0.7
0.9

Wind Speed/Direction (mph)

2
1
1
1
2
2
3
4
6
8
8
9
10
9
9
9
9
9
10
9
8
7
7
7

Chance of Frost

Temperature (°C)

13
12
12
12
13
14
15
17
19
21
22
23
24
24
24
24
22
19
17
16
16
15
15
15

Feels Like (°C)

17
14
14
14
14
13
13
16
16
17
18
19
19
25
23
23
23
25
25
13
14
14
14
14

Dew Point (°C)

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

Relative Humidity (%)

92
93
95
95
95
95
96
86
77
70
65
61
57
56
54
53
62
72
83
87
90
92
92
93

Pressure (mb)

1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1012
1012
1011
1010
1010
1009
1009
1010
1010
1010
1011
1011
1011
1011

Ozone (du)

349
349
349
348
347
346
345
347
349
351
350
349
348
345
342
339
339
339
339
341
343
345
352
359

Monday 1

Waning Gibbous 99%

22:45

04:47

Sun - Rise: 04:49, Set: 20:58, Transit: 12:54. Moon - Rise: 22:45, Set: 04:47. Civil Dark: 21:42 - 04:05. Nautical Dark: 22:45 - 03:02. Astro Dark: N/A - N/A

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: 26/05/26 02:30:11. Forecast: 26/05/26 to 01/06/26. Timezone: UTC+2.00