Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 23

Waxing Gibbous 72%

16:25

00:11

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 OK
00 Good
01 Good
02 OK
03 OK
04 OK
05 OK
06 Good
07 Good

Sun - Rise: 05:13, Set: 20:53, Transit: 13:02. Moon - Rise: 16:25, Set: 00:11. Civil Dark: 21:34 - 04:32. Nautical Dark: 22:30 - 03:37. Astro Dark: 23:54 - 02:15

Total Clouds (% Sky Obscured)

82
83
88
98
76
76
82
57
68
87
75
100
98
13
33
2
0
0
24
37
31
24
4
3

Low Clouds (% Sky Obscured)

77
80
85
56
60
58
69
51
54
43
36
46
3
0
3
1
0
0
24
37
31
24
0
0

Medium Clouds (% Sky Obscured)

38
46
54
50
29
25
14
36
34
34
51
93
81
13
33
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

1
7
5
54
2
12
1
0
0
47
47
75
57
0
0
0
0
0
0
0
0
0
4
3

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

49
54
51
47
38
32
21
35
57
69
80
59
38
30
14
7
3
2
0
0
0
0
2
7

Precipitation Amount (mm)

0
0.4
0.2
0.2
0
0
0
0
0
0.2
0.5
0.3
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
11
10
11
12
11
11
11
10
9
11
12
13
12
11
10
9
8
8
7
7
7
7
8

Relative Humidity (%)

84
75
75
82
80
71
66
68
57
58
66
80
87
92
93
91
93
93
93
91
91
91
91
87

Pressure (mb)

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

Ozone (du)

378
379
377
375
373
375
376
377
376
376
375
373
372
375
376
380
381
380
374
369
366
360
355
352

Friday 24

Waxing Gibbous 80%

17:34

00:44

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

Sun - Rise: 05:14, Set: 20:51, Transit: 13:02. Moon - Rise: 17:34, Set: 00:44. Civil Dark: 21:32 - 04:34. Nautical Dark: 22:28 - 03:39. Astro Dark: 23:50 - 02:19

Total Clouds (% Sky Obscured)

46
47
49
61
44
60
66
59
69
92
70
22
22
32
46
30
55
95
79
83
92
100
100
94

Low Clouds (% Sky Obscured)

46
42
31
25
24
6
12
21
27
85
41
1
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
5
14
21
28
53
58
43
48
46
35
20
20
19
2
2
2
1
0
0
0
0
0
0

High Clouds (% Sky Obscured)

2
8
17
28
2
0
0
0
0
0
1
3
4
21
46
30
55
95
79
79
92
100
100
94

ISS Passover

Visibility (miles)

9
8
6
5
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
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

20
56
59
53
32
7
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0.4
0.4
0.3
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
4
5
8
8
8
8
8
7
6
6
6
4
3
3
3
3
3
2
3
2
2
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
17
18
17
17
19
20
20
20
20
19
19
19
16
13
11
11
10
9
9
10
9
10
11

Dew Point (°C)

10
11
11
11
10
8
7
7
7
6
8
10
11
10
9
8
8
7
7
7
7
8
8
8

Relative Humidity (%)

83
74
67
65
56
44
38
39
39
38
45
52
63
71
75
76
77
76
76
77
82
84
81
72

Pressure (mb)

1018
1018
1017
1017
1017
1017
1016
1016
1016
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015

Ozone (du)

350
350
348
346
348
350
349
347
347
346
345
344
342
341
343
345
345
346
348
344
342
343
343
342

Saturday 25

Waxing Gibbous 87%

18:35

01:27

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

Sun - Rise: 05:16, Set: 20:50, Transit: 13:02. Moon - Rise: 18:35, Set: 01:27. Civil Dark: 21:31 - 04:35. Nautical Dark: 22:26 - 03:41. Astro Dark: 23:45 - 02:23

Total Clouds (% Sky Obscured)

100
100
100
53
36
47
51
100
100
100
100
93
80
40
0
0
0
47
59
89
100
100
99
99

Low Clouds (% Sky Obscured)

0
0
0
0
1
4
0
11
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
3
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
33
49
52
51
47

High Clouds (% Sky Obscured)

100
100
100
53
36
47
51
100
100
100
100
93
80
40
0
0
0
26
28
80
100
99
98
98

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

8
8
8
9
9
8
8
7
7
7
9
12
12
10
9
9
8
8
7
7
6
6
7
9

Relative Humidity (%)

62
56
51
47
43
38
35
33
33
33
37
48
54
58
61
64
64
63
60
59
58
58
58
59

Pressure (mb)

1014
1014
1013
1013
1012
1011
1011
1010
1009
1009
1008
1008
1008
1008
1008
1008
1008
1008
1008
1007
1007
1007
1007
1007

Ozone (du)

340
339
339
338
338
338
339
338
339
339
338
339
341
342
346
349
350
351
349
345
342
340
340
339

Sunday 26

Waxing Gibbous 93%

19:26

02:22

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 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:17, Set: 20:49, Transit: 13:02. Moon - Rise: 19:26, Set: 02:22. Civil Dark: 21:29 - 04:37. Nautical Dark: 22:24 - 03:43. Astro Dark: 23:41 - 02:27

Total Clouds (% Sky Obscured)

97
95
94
94
95
96
97
99
100
100
100
100
100
100
100
100
100
100
92
86
82
84
79
90

Low Clouds (% Sky Obscured)

0
0
0
6
12
0
0
43
21
1
3
33
11
1
2
59
41
55
38
46
33
50
52
73

Medium Clouds (% Sky Obscured)

39
28
22
43
86
45
44
85
59
44
61
100
88
100
92
82
67
53
58
62
49
72
46
68

High Clouds (% Sky Obscured)

96
93
92
89
83
82
88
94
100
100
100
100
100
100
100
100
100
100
77
57
40
17
6
8

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
9
9
9
9
9
9
4
8
6

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
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
1
2
1
5
43
29
23
29
52
32
50
49
29
28
17
15
21
40
36
49
51

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
20
22
23
24
25
26
27
25
26
24
22
19
18
17
16
16
16
16
15
15
14
15
16

Feels Like (°C)

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

Dew Point (°C)

8
8
9
10
10
10
9
7
9
9
12
14
15
15
15
15
14
15
15
13
14
14
14
14

Relative Humidity (%)

52
47
44
41
39
39
33
29
37
34
46
59
73
85
90
92
90
93
93
86
93
98
95
92

Pressure (mb)

1007
1007
1006
1006
1006
1006
1005
1005
1005
1005
1006
1006
1007
1007
1008
1008
1008
1008
1008
1008
1008
1008
1008
1009

Ozone (du)

339
338
337
337
336
334
335
334
337
337
336
335
335
337
339
343
346
350
353
356
360
366
374
377

Monday 27

Waxing Gibbous 97%

20:06

03:28

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 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:18, Set: 20:47, Transit: 13:02. Moon - Rise: 20:06, Set: 03:28. Civil Dark: 21:27 - 04:38. Nautical Dark: 22:21 - 03:45. Astro Dark: 23:37 - 02:31

Total Clouds (% Sky Obscured)

93
74
92
78
75
65
50
49
51
53
57
63
76
65
53
48
48
48
54
54
55
60
54
39

Low Clouds (% Sky Obscured)

74
51
69
58
55
44
26
25
28
26
30
31
36
26
14
19
26
28
26
29
31
38
54
39

Medium Clouds (% Sky Obscured)

67
55
61
42
34
26
26
27
28
23
19
16
29
26
31
31
35
39
46
53
55
54
43
28

High Clouds (% Sky Obscured)

16
19
26
19
10
0
0
0
3
8
15
29
46
36
29
23
11
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

7
5
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

Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain
None

Precipitation Probability (%)

74
95
95
95
83
65
54
46
36
40
37
17
41
24
5
12
14
10
24
35
54
59
57
51

Precipitation Amount (mm)

0.4
0.8
0.8
0.5
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.3
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

15
14
13
13
10
9
8
7
6
6
6
7
8
8
9
9
9
9
9
9
9
9
9
8

Relative Humidity (%)

92
83
76
78
59
52
48
42
38
38
39
47
57
62
70
79
80
80
83
84
84
87
79
72

Pressure (mb)

1010
1010
1011
1012
1012
1012
1013
1013
1013
1014
1014
1015
1016
1016
1017
1018
1018
1019
1019
1020
1020
1021
1021
1022

Ozone (du)

376
374
375
371
364
358
355
354
352
351
349
349
349
349
349
350
350
350
349
347
345
343
341
338

Tuesday 28

Waxing Gibbous 100%

20:35

04:40

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

Sun - Rise: 05:20, Set: 20:46, Transit: 13:02. Moon - Rise: 20:35, Set: 04:40. Civil Dark: 21:26 - 04:40. Nautical Dark: 22:19 - 03:47. Astro Dark: 23:33 - 02:34

Total Clouds (% Sky Obscured)

39
35
30
25
20
15
21
27
33
35
35
36
34
38
38
32
27
20
22
25
27
18
11
1

Low Clouds (% Sky Obscured)

39
35
30
25
20
15
16
17
20
14
9
1
1
0
0
3
4
5
7
12
16
13
7
0

Medium Clouds (% Sky Obscured)

21
12
7
6
3
0
4
10
15
10
4
0
1
1
2
1
1
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
1
1
2
15
28
36
34
38
38
29
13
1
0
0
0
0
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 (%)

38
26
6
11
6
0
1
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
5
6
7
8
8
8
8
5
4
5
4
4
3
3
3
3
3
3
3
2
1

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
57
50
45
40
37
34
33
33
33
40
48
59
62
64
68
69
70
68
69
69
72
65
59

Pressure (mb)

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

Ozone (du)

336
335
335
335
335
334
334
333
331
330
329
327
326
325
325
324
324
324
324
323
323
323
322
322

Wednesday 29

Full Moon 100%

20:57

05:54

08 Good
09 Good
10 Good
11 Good
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
01 Good

Sun - Rise: 05:21, Set: 20:44, Transit: 13:02. Moon - Rise: 20:57, Set: 05:54. Civil Dark: 21:24 - 04:42. Nautical Dark: 22:17 - 03:49. Astro Dark: 23:30 - 02:38

Total Clouds (% Sky Obscured)

2
3
4
14
24
31
32
37
43
38
27
19
21
19
17
17
15
15

Low Clouds (% Sky Obscured)

1
2
3
11
18
26
32
37
43
38
27
19
21
19
17
17
15
14

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
1
2
4
2
1
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
18
20
21
22
23
24
24
25
25
24
23
21
20
18
16
15
15

Feels Like (°C)

11
19
19
19
20
21
21
26
26
25
26
27
28
21
20
20
19
19

Dew Point (°C)

7
7
7
7
7
7
7
7
8
8
10
11
13
12
11
10
9
9

Relative Humidity (%)

54
48
43
38
36
35
33
33
33
33
41
48
58
61
64
67
68
68

Pressure (mb)

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

Ozone (du)

322
322
322
322
320
319
318
318
317
317
317
318
318
318
318
318
318
319

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

Generated: 23/07/26 08:02:55. Forecast: 23/07/26 to 29/07/26. Timezone: UTC+2.00