Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 27

Waxing Gibbous 89%

17:09

03:01

03 Good
04 Good
05 Good
06 Good
07 OK
08 Good
09 Good
10 OK
11 Bad
12 OK
13 OK
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

Sun - Rise: 04:53, Set: 20:53, Transit: 12:53. Moon - Rise: 17:09, Set: 03:01. Civil Dark: 21:35 - 04:10. Nautical Dark: 22:36 - 03:10. Astro Dark: 00:35 - N/A

Total Clouds (% Sky Obscured)

0
0
0
7
21
0
2
18
29
12
9
19
16
1
3
0
0
0
0
1
0
0
0
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
18
27
8
2
3
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
1
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
3
10
0
2
3
10
3
9
19
16
1
3
0
0
0
0
1
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
5
9
7
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
23
23
22
8
10
4
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
2
2
2
2
2
5
9
12
12
12
12
12
11
9
8
5
5
5
4
4
4

Chance of Frost

Temperature (°C)

13
13
13
14
16
18
20
22
24
25
24
23
23
22
21
20
18
16
13
12
11
10
9
9

Feels Like (°C)

15
15
15
16
18
20
23
24
25
24
22
21
20
19
19
18
17
15
13
11
10
10
9
8

Dew Point (°C)

10
10
11
12
12
13
13
13
13
12
13
12
10
9
9
8
8
8
7
6
6
5
5
4

Relative Humidity (%)

80
84
84
83
78
71
65
57
51
46
50
50
45
44
46
45
50
59
63
65
69
71
72
74

Pressure (mb)

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

Ozone (du)

312
314
315
314
318
322
323
322
324
327
327
325
324
328
333
331
331
330
327
327
330
330
330
328

Thursday 28

Waxing Gibbous 94%

18:22

03:01

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

0
0
2
0
0
0
41
42
65
62
49
53
49
27
35
25
15
23
21
13
5
3
11
14

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
41
42
40
31
26
39
35
23
35
25
15
19
3
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
1
0
0
0
0
7
38
32
44
22
20
8
5
3
3
8
20
13
5
3
10
13

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
3
2
1
1
3
3
3
3
3
5
8
8
8
8
6
4
4
4
4
5
4

Chance of Frost

Temperature (°C)

8
7
7
7
10
12
14
15
16
18
19
19
20
19
19
18
17
15
13
11
10
9
9
8

Feels Like (°C)

7
7
7
8
11
13
14
16
17
18
19
18
19
17
17
16
16
14
12
11
9
8
8
8

Dew Point (°C)

4
4
4
4
5
5
4
4
3
3
3
3
4
5
5
6
7
7
5
4
3
2
2
1

Relative Humidity (%)

77
81
84
81
71
62
53
46
40
37
35
34
35
37
40
45
51
59
59
60
61
62
62
62

Pressure (mb)

1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1022
1022
1022
1022
1022
1023
1024
1024
1025
1025
1026
1026

Ozone (du)

326
325
326
326
327
328
331
332
333
333
334
335
336
336
337
338
337
337
338
340
340
340
340
341

Friday 29

Waxing Gibbous 98%

19:34

03:18

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

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)

3
3
18
8
11
18
10
24
21
28
18
21
13
18
22
18
4
19
48
89
35
57
79
86

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
10
19
28
18
21
9
17
22
17
4
3
2
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
8
14
21
8
8
11
86

High Clouds (% Sky Obscured)

2
3
11
7
11
18
6
9
5
4
4
4
9
5
4
3
0
15
47
89
35
45
41
58

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
2
3
5
5
5
6
7
7
7
8
7
5
3
1
1
1
1
2
2

Chance of Frost

Temperature (°C)

8
7
7
8
10
13
15
16
17
19
20
20
21
21
21
21
20
18
16
15
14
13
12
12

Feels Like (°C)

7
8
7
8
11
13
13
16
17
18
19
19
20
20
20
20
21
20
17
16
14
15
12
11

Dew Point (°C)

1
2
2
3
4
5
6
7
7
7
8
9
9
10
10
11
13
13
12
11
10
10
9
9

Relative Humidity (%)

64
69
71
71
65
59
56
54
50
47
47
46
47
47
49
53
63
70
75
79
79
80
81
81

Pressure (mb)

1026
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025
1025
1024
1024
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023

Ozone (du)

341
342
342
342
342
342
341
341
343
344
344
343
343
342
341
341
341
341
340
341
346
345
340
340

Saturday 30

Waxing Gibbous 100%

20:45

03:39

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 OK
18 OK
19 Good
20 Good
21 Good
22 OK
23 OK
00 OK
01 OK
02 OK

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)

92
100
92
86
79
83
87
91
47
65
90
100
56
48
36
20
5
10
8
40
48
31
21
32

Low Clouds (% Sky Obscured)

0
2
2
8
19
24
6
13
0
9
11
10
6
9
6
3
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

87
85
84
86
79
83
87
84
26
34
40
33
22
0
0
0
0
0
0
0
6
12
17
22

High Clouds (% Sky Obscured)

76
100
76
54
39
51
65
77
41
53
83
100
56
48
36
20
1
2
1
8
10
5
2
31

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
8
9
9
8
8
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
14
6
26
30
33
45
34
15
24
31
13
13
6
4
3
0
0
0
0
0
0
0
6

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
2
1
2
2
1
3
6
8
9
11
13
13
12
11
10
8
5
4
2
2
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
80
81
80
80
79
78
77
76
67
64
62
55
46
47
51
58
69
77
79
79
80
86
87

Pressure (mb)

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

Ozone (du)

338
337
338
340
341
341
346
346
347
349
350
350
351
349
349
348
347
348
346
345
344
345
344
345

Sunday 31

Full Moon 100%

21:50

04:08

03 Bad
04 Bad
05 Bad
06 Bad
07 OK
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

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)

43
55
72
71
26
65
54
89
90
88
85
78
71
66
66
69
70
80
90
100
99
99
98
99

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
3
2
0
0
3
6
7
6
3
21
24
20
16
29
41
52
56

Medium Clouds (% Sky Obscured)

25
29
19
7
0
1
1
2
48
73
78
59
40
21
12
7
2
32
61
90
84
79
71
75

High Clouds (% Sky Obscured)

43
55
68
42
11
48
54
84
70
56
40
43
43
39
36
29
22
45
73
100
96
92
88
93

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
6
4
2
3
3
3
5
7
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
Very Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

7
2
1
0
0
0
0
0
5
7
5
41
47
41
48
64
81
66
65
53
58
61
52
55

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.8
0.3
0.3
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
14
14
13
14
17
18
20
20
21
21
22
22
22
22
22
22
22
16
17
17
17
16
16

Dew Point (°C)

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

Relative Humidity (%)

89
89
90
89
83
75
72
66
59
53
49
47
49
52
55
63
74
86
89
93
96
96
95
93

Pressure (mb)

1016
1016
1016
1015
1015
1015
1014
1014
1013
1013
1012
1011
1011
1011
1010
1011
1011
1011
1012
1012
1012
1012
1013
1013

Ozone (du)

344
343
345
344
344
344
343
344
347
350
354
358
355
352
350
348
346
344
345
345
345
345
345
345

Monday 1

Waning Gibbous 97%

22:45

04:47

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
02 Bad

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)

99
100
91
81
72
77
81
86
80
75
68
65
53
46
50
57
67
78
90
100
99
99
98
98

Low Clouds (% Sky Obscured)

61
65
59
51
48
51
54
53
47
39
32
31
31
28
25
20
16
17
17
18
26
33
43
47

Medium Clouds (% Sky Obscured)

84
94
73
55
36
38
45
49
54
61
63
54
53
46
50
57
67
78
75
70
55
50
40
23

High Clouds (% Sky Obscured)

97
100
67
33
0
30
60
86
80
67
53
37
23
6
37
57
67
78
90
100
99
96
94
84

ISS Passover

Visibility (miles)

7
5
3
5
7
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 (%)

52
43
42
39
28
31
35
31
32
30
20
21
24
21
22
22
14
14
15
18
37
46
50
49

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
3
4
5
6
7
9
10
9
9
9
9
9
9
7
5
4
3
3
4
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
96
100
95
90
85
78
71
63
58
54
50
48
46
45
52
60
69
73
76
80
81
83
84

Pressure (mb)

1013
1013
1013
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1017
1017

Ozone (du)

350
356
361
365
368
371
366
361
355
355
354
353
354
355
355
354
352
350
348
346
344
341
338
336

Tuesday 2

Waning Gibbous 94%

23:29

05:38

Sun - Rise: 04:48, Set: 20:59, Transit: 12:54. Moon - Rise: 23:29, Set: 05:38. Civil Dark: 21:43 - 04:04. Nautical Dark: 22:46 - 03:01. 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: 27/05/26 03:22:20. Forecast: 27/05/26 to 02/06/26. Timezone: UTC+2.00