Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 23

First Quarter 53%

12:13

01:54

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

Sun - Rise: 04:57, Set: 20:48, Transit: 12:52. Moon - Rise: 12:13, Set: 01:54. Civil Dark: 21:30 - 04:15. Nautical Dark: 22:28 - 03:17. Astro Dark: 00:04 - 01:41

Total Clouds (% Sky Obscured)

9
16
17
42
21
15
18
18
55
65
74
66
73
48
85
45
37
10
3
2
2
4
8
92

Low Clouds (% Sky Obscured)

9
16
17
29
21
15
18
18
55
65
74
66
73
38
70
35
32
5
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

9
0
0
0
0
0
0
0
0
0
0
0
0
24
38
7
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

1
3
13
34
3
0
0
0
4
0
3
4
3
5
35
29
3
3
3
2
2
4
6
79

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

Chance of Frost

Temperature (°C)

12
11
11
10
10
11
13
16
18
19
21
22
23
23
24
23
23
22
21
19
16
15
14
14

Feels Like (°C)

13
12
11
11
10
12
15
19
21
22
23
24
24
25
24
23
23
23
22
21
18
17
16
15

Dew Point (°C)

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

Relative Humidity (%)

90
90
90
90
91
87
79
72
65
59
56
52
50
50
49
52
55
62
69
78
85
87
87
87

Pressure (mb)

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

Ozone (du)

336
335
335
336
336
337
338
339
340
339
338
338
338
334
333
333
332
329
326
326
327
328
327
326

Sunday 24

Waxing Gibbous 64%

13:30

02:09

01 OK
02 OK
03 OK
04 Good
05 Good
06 Good
07 Good
08 OK
09 OK
10 OK
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 OK
00 Bad

Sun - Rise: 04:56, Set: 20:49, Transit: 12:52. Moon - Rise: 13:30, Set: 02:09. Civil Dark: 21:31 - 04:14. Nautical Dark: 22:30 - 03:15. Astro Dark: 00:09 - 01:35

Total Clouds (% Sky Obscured)

30
32
11
0
2
0
1
30
25
25
75
61
92
87
83
100
99
76
90
87
49
54
35
44

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
3
44
52
50
30
18
52
0
20
23
9
6
0
0

Medium Clouds (% Sky Obscured)

2
0
0
0
0
0
0
24
16
7
0
20
13
42
56
54
53
36
50
33
14
2
0
0

High Clouds (% Sky Obscured)

30
32
11
0
2
0
1
4
8
25
75
25
78
63
67
100
98
76
85
74
38
41
26
40

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
6
5
5
9
9
9
7
6
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
Very Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
39
52
51
53
29
34
54
62
16
12
16
1
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.4
0.6
0
0
0
0.3
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
14
13
14
15
15
18
21
22
23
23
23
25
25
25
25
25
25
23
21
18
17
16
16

Dew Point (°C)

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

Relative Humidity (%)

90
89
89
89
90
90
83
76
70
66
62
66
66
64
63
61
59
68
76
81
88
92
93
93

Pressure (mb)

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

Ozone (du)

327
329
330
328
330
330
328
326
327
328
329
327
326
324
324
322
320
317
316
316
314
313
313
311

Monday 25

Waxing Gibbous 73%

14:44

02:22

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

Sun - Rise: 04:55, Set: 20:50, Transit: 12:53. Moon - Rise: 14:44, Set: 02:22. Civil Dark: 21:33 - 04:13. Nautical Dark: 22:32 - 03:13. Astro Dark: 00:16 - 01:29

Total Clouds (% Sky Obscured)

41
91
80
78
82
78
61
6
4
3
4
3
3
2
14
14
15
26
15
9
5
4
3
4

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
14
14
15
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)

38
90
80
54
48
43
39
6
4
3
4
3
3
2
4
4
3
15
10
7
5
2
1
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)

6
6
5
5
5
4
4
4
5
5
4
4
4
4
5
5
5
5
5
4
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
13
13
12
12
13
15
17
18
20
21
22
23
23
23
24
24
24
23
21
18
17
15
14

Dew Point (°C)

14
13
12
11
10
10
12
11
11
9
9
8
8
8
9
10
11
12
14
14
12
11
9
8

Relative Humidity (%)

92
93
92
93
92
90
84
74
64
53
46
40
38
37
38
41
44
51
62
70
71
72
70
69

Pressure (mb)

1030
1030
1030
1030
1031
1031
1031
1031
1031
1031
1031
1031
1030
1030
1029
1029
1029
1028
1028
1029
1029
1029
1029
1029

Ozone (du)

311
310
310
309
306
306
307
308
309
309
310
310
309
308
308
308
308
309
309
307
307
307
307
308

Tuesday 26

Waxing Gibbous 82%

15:57

02:34

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

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 - 01:21

Total Clouds (% Sky Obscured)

4
4
3
2
2
2
3
2
5
6
19
26
51
24
19
14
15
14
15
15
17
15
21
48

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
5
6
19
26
41
24
19
14
14
13
12
13
14
15
19
36

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
5
13
19
18
16
10
12
14
15
15
14
11
18
25

High Clouds (% Sky Obscured)

1
1
1
1
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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
3
5
8
15
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)

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

Chance of Frost

Temperature (°C)

13
12
12
11
11
13
15
17
18
20
21
23
25
26
26
26
25
25
24
22
19
18
16
15

Feels Like (°C)

14
13
13
13
12
14
17
19
20
21
22
24
25
25
24
25
25
25
24
24
21
19
17
16

Dew Point (°C)

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

Relative Humidity (%)

71
73
77
79
80
79
70
65
63
61
59
55
47
43
43
47
51
54
63
74
78
81
85
87

Pressure (mb)

1029
1029
1029
1029
1029
1029
1028
1028
1028
1028
1027
1026
1025
1024
1024
1023
1023
1022
1022
1022
1022
1022
1021
1021

Ozone (du)

309
312
313
313
312
312
312
313
313
312
313
314
315
315
318
320
321
322
322
322
322
324
325
325

Wednesday 27

Waxing Gibbous 89%

17:09

02:47

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

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 - 01:11

Total Clouds (% Sky Obscured)

25
16
10
16
1
1
1
17
31
48
47
56
54
38
21
6
7
9
10
21
32
48
39
30

Low Clouds (% Sky Obscured)

24
16
7
9
0
0
0
0
0
0
0
0
0
0
0
1
3
5
7
5
3
1
4
8

Medium Clouds (% Sky Obscured)

25
16
10
0
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
8
17
25
17
8

High Clouds (% Sky Obscured)

0
0
1
1
0
0
0
17
31
48
47
56
54
38
21
2
1
1
0
21
32
48
39
30

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 (%)

17
36
22
6
6
2
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
4
3
4
4
5
6
8
9
10
10
11
11
11
11
10
8
7
6
5
4
4

Chance of Frost

Temperature (°C)

15
14
13
13
12
12
13
13
14
15
16
17
17
17
17
17
16
15
14
12
11
10
8
8

Feels Like (°C)

15
15
15
13
12
13
13
13
13
13
13
14
14
14
14
13
14
13
13
14
9
10
10
10

Dew Point (°C)

13
13
12
11
10
10
9
5
1
-1
-1
0
1
2
3
3
4
4
4
5
5
4
3
4

Relative Humidity (%)

89
93
95
90
89
89
76
56
39
34
32
33
33
37
38
40
42
47
53
62
65
68
70
75

Pressure (mb)

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

Ozone (du)

323
324
326
329
330
331
334
336
335
337
336
341
344
345
345
346
347
348
349
350
351
351
352
351

Thursday 28

Waxing Gibbous 94%

18:22

03:01

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

20
26
32
38
45
51
57
61
64
68
56
46
35
32
24
19
27
36
46
38
29
17
15
13

Low Clouds (% Sky Obscured)

11
11
11
10
9
9
8
7
10
14
12
8
4
3
2
0
1
2
2
1
1
0
3
7

Medium Clouds (% Sky Obscured)

0
0
0
0
14
41
57
35
52
47
42
41
34
28
24
19
27
36
46
35
17
0
0
0

High Clouds (% Sky Obscured)

0
15
27
38
26
14
2
22
43
67
45
23
0
2
3
4
3
1
0
1
6
9
8
8

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

Chance of Frost

Temperature (°C)

7
6
6
5
5
7
8
10
11
13
14
15
16
18
18
18
18
16
15
14
12
10
8
8

Feels Like (°C)

9
8
5
5
5
5
5
5
11
11
11
11
12
12
16
15
15
15
15
16
10
11
11
10

Dew Point (°C)

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

Relative Humidity (%)

79
85
86
88
89
84
77
72
65
59
53
46
41
35
37
38
40
48
55
65
68
72
77
79

Pressure (mb)

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

Ozone (du)

351
350
350
349
348
348
347
347
346
345
345
345
345
345
345
345
345
344
344
344
344
344
345
345

Friday 29

Waxing Gibbous 98%

19:34

03:18

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)

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: 23/05/26 00:58:35. Forecast: 23/05/26 to 29/05/26. Timezone: UTC+2.00