Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 26

Waxing Gibbous 93%

19:30

02:31

09 OK
10 OK
11 Bad
12 OK
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
08 Bad

Sun - Rise: 05:24, Set: 20:53, Transit: 13:08. Moon - Rise: 19:30, Set: 02:31. Civil Dark: 21:33 - 04:44. Nautical Dark: 22:27 - 03:51. Astro Dark: 23:42 - 02:38

Total Clouds (% Sky Obscured)

24
36
54
26
68
70
100
100
100
100
100
84
71
63
64
95
71
69
96
71
28
100
49
71

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
7
3
7
0
0
0
1
8
14
8
6
20
24
80
21
16

Medium Clouds (% Sky Obscured)

20
11
28
26
30
34
27
32
36
30
60
74
71
63
64
74
48
29
42
65
19
46
48
53

High Clouds (% Sky Obscured)

15
36
54
16
63
58
99
100
100
100
100
68
6
7
4
59
51
55
91
36
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
8
8
8
5
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
Very Light Rain
Very Light Rain
Light Rain
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
2
7
1
5
8
8
31
45
56
83
32

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.7
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
24
26
28
30
31
31
31
31
30
29
29
26
24
23
21
20
20
21
20
19
18
19
18

Feels Like (°C)

22
24
26
29
31
30
28
27
27
26
26
25
23
22
21
20
17
17
19
17
17
17
16
16

Dew Point (°C)

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

Relative Humidity (%)

44
39
35
32
29
25
24
24
24
27
29
30
37
48
55
59
54
48
56
64
76
85
81
70

Pressure (mb)

1006
1006
1006
1005
1004
1004
1004
1003
1003
1003
1003
1004
1004
1005
1006
1006
1006
1006
1006
1007
1007
1008
1009
1010

Ozone (du)

344
344
343
343
343
342
341
340
340
341
343
346
349
350
351
353
350
348
345
344
344
347
350
354

Monday 27

Waxing Gibbous 97%

20:10

03:36

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 OK
04 OK
05 OK
06 OK
07 OK
08 OK

Sun - Rise: 05:25, Set: 20:52, Transit: 13:08. Moon - Rise: 20:10, Set: 03:36. Civil Dark: 21:31 - 04:46. Nautical Dark: 22:25 - 03:53. Astro Dark: 23:38 - 02:42

Total Clouds (% Sky Obscured)

70
67
69
93
78
81
55
49
62
69
66
63
59
90
74
72
64
64
21
28
45
40
29
35

Low Clouds (% Sky Obscured)

41
53
66
91
76
64
42
31
39
42
46
34
21
40
17
17
15
25
0
17
27
36
26
26

Medium Clouds (% Sky Obscured)

39
26
28
44
34
41
29
31
35
38
31
26
32
49
49
43
55
32
19
22
32
25
12
11

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
0
0
0
0
2
2
0
0
0
0
0
0
0
0
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 (%)

37
20
9
5
1
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
1
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)

13
15
17
16
16
16
15
15
15
13
11
10
7
4
3
3
3
4
4
5
4
4
4
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
15
16
18
18
18
19
20
21
20
20
19
18
17
16
18
17
17
14
15
15
14
16
18

Dew Point (°C)

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

Relative Humidity (%)

61
49
48
44
41
40
39
36
33
34
36
40
45
51
52
60
62
66
65
73
79
79
70
62

Pressure (mb)

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

Ozone (du)

355
355
352
350
348
350
349
348
347
346
346
346
347
347
347
346
345
344
343
342
341
339
338
338

Tuesday 28

Waxing Gibbous 100%

20:39

04:48

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

Sun - Rise: 05:27, Set: 20:50, Transit: 13:08. Moon - Rise: 20:39, Set: 04:48. Civil Dark: 21:30 - 04:48. Nautical Dark: 22:23 - 03:55. Astro Dark: 23:34 - 02:45

Total Clouds (% Sky Obscured)

59
49
49
32
63
42
21
54
39
18
10
0
0
1
5
4
2
7
12
17
21
21
25
26

Low Clouds (% Sky Obscured)

39
32
16
19
21
0
8
22
16
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

36
29
31
2
38
31
7
28
18
18
9
0
0
0
0
0
0
5
9
15
13
9
7
13

High Clouds (% Sky Obscured)

3
5
6
7
17
8
8
1
0
0
0
0
0
0
5
3
2
3
3
3
8
12
18
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)

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

Chance of Frost

Temperature (°C)

20
22
22
24
25
25
26
26
26
25
25
24
21
20
19
18
18
17
16
15
15
16
17
18

Feels Like (°C)

19
20
19
21
22
23
23
24
23
23
24
24
22
22
21
20
19
18
18
17
17
17
18
19

Dew Point (°C)

12
10
8
8
8
8
8
10
11
12
12
13
13
13
13
13
12
11
11
11
10
11
11
10

Relative Humidity (%)

57
47
39
36
33
32
33
37
40
42
44
51
61
66
67
69
70
71
72
73
75
74
67
59

Pressure (mb)

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

Ozone (du)

337
337
336
335
334
333
333
332
331
329
328
326
324
323
322
321
320
320
319
320
319
319
318
318

Wednesday 29

Full Moon 100%

21:02

06:02

09 OK
10 OK
11 OK
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: 05:28, Set: 20:49, Transit: 13:08. Moon - Rise: 21:02, Set: 06:02. Civil Dark: 21:28 - 04:49. Nautical Dark: 22:20 - 03:57. Astro Dark: 23:31 - 02:49

Total Clouds (% Sky Obscured)

26
24
19
16
14
10
6
2
1
0
0
0
0
0
0
0
0
0
0
0
2
3
5
10

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)

20
24
19
16
13
10
6
2
1
0
0
0
0
0
0
0
0
0
0
0
2
3
5
10

High Clouds (% Sky Obscured)

8
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
4
5
6
6
7
7
7
7
7
7
6
6
5
5
4
4
4
3
3
3
3
4

Chance of Frost

Temperature (°C)

20
22
24
26
27
29
29
30
30
30
29
28
25
23
21
20
19
18
18
17
16
17
19
20

Feels Like (°C)

21
24
26
28
29
30
30
31
30
29
29
29
26
24
22
21
21
20
19
19
18
19
21
22

Dew Point (°C)

10
11
11
11
11
11
10
10
10
9
10
13
13
13
12
12
13
12
12
12
11
12
12
11

Relative Humidity (%)

53
48
42
39
35
32
30
28
27
27
30
40
45
50
55
60
65
67
71
72
72
73
64
54

Pressure (mb)

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

Ozone (du)

318
318
318
319
319
320
319
320
320
321
322
322
321
320
318
318
317
316
317
319
319
319
318
319

Thursday 30

Waning Gibbous 98%

21:20

07:16

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

Sun - Rise: 05:30, Set: 20:48, Transit: 13:08. Moon - Rise: 21:20, Set: 07:16. Civil Dark: 21:27 - 04:51. Nautical Dark: 22:18 - 03:59. Astro Dark: 23:27 - 02:52

Total Clouds (% Sky Obscured)

17
25
28
30
31
23
11
0
1
3
4
7
5
2
19
35
52
47
42
36
31
28
25
37

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)

17
23
24
28
29
21
11
0
1
1
2
2
1
0
0
0
0
5
10
13
9
4
0
10

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
3
4
3
2
16
29
38
37
32
28
26
25
25
37

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

Chance of Frost

Temperature (°C)

23
26
28
30
32
34
35
35
36
35
34
33
30
28
26
25
23
22
21
20
18
20
22
23

Feels Like (°C)

25
27
29
31
33
35
35
36
36
36
35
34
32
31
31
29
28
27
21
21
21
20
20
20

Dew Point (°C)

11
10
10
10
10
11
11
11
11
11
12
14
14
14
13
13
13
12
11
11
10
10
10
11

Relative Humidity (%)

45
37
32
28
25
24
22
22
22
22
25
31
35
40
45
47
51
54
55
56
56
52
48
45

Pressure (mb)

1020
1019
1019
1018
1018
1017
1016
1016
1015
1015
1015
1015
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018

Ozone (du)

319
320
320
319
318
317
316
316
315
314
314
315
314
313
313
312
311
310
310
311
311
310
309
308

Friday 31

Waning Gibbous 94%

21:34

08:30

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 OK
01 OK
02 OK
03 OK
04 OK
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 05:31, Set: 20:46, Transit: 13:08. Moon - Rise: 21:34, Set: 08:30. Civil Dark: 21:25 - 04:52. Nautical Dark: 22:16 - 04:01. Astro Dark: 23:24 - 02:55

Total Clouds (% Sky Obscured)

53
61
57
52
47
45
45
49
47
41
39
32
26
20
23
27
35
31
28
28
50
68
87
91

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
7
13
19
13
6
0
0
0
0
6
10
15
8
5
1
1

Medium Clouds (% Sky Obscured)

19
28
26
24
22
14
8
2
10
19
29
21
12
3
13
21
26
24
22
23
40
53
65
63

High Clouds (% Sky Obscured)

52
61
56
51
39
23
26
20
18
16
14
13
20
20
23
27
35
31
25
17
28
35
40
50

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
20
28
31
41
46
46
37
26
2
5
6
4
12
11
4
20

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

Chance of Frost

Temperature (°C)

26
29
32
34
36
38
38
39
39
36
34
31
29
27
24
24
24
24
23
23
22
23
23
24

Feels Like (°C)

26
27
29
30
31
31
41
40
38
41
42
44
29
28
28
27
27
26
24
24
24
23
23
22

Dew Point (°C)

11
12
13
13
13
13
13
12
11
15
19
23
22
22
21
21
21
21
20
20
19
19
18
17

Relative Humidity (%)

39
34
30
27
24
22
21
20
19
28
41
60
67
75
84
84
84
83
83
83
83
78
73
67

Pressure (mb)

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

Ozone (du)

307
305
303
304
304
304
305
307
308
308
308
307
307
307
306
308
310
312
312
312
311
311
310
310

Saturday 1

Waning Gibbous 88%

21:47

No Set

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: 05:32, Set: 20:44, Transit: 13:08. Moon - Rise: 21:47, Set: No Set. Civil Dark: 21:23 - 04:54. Nautical Dark: 22:14 - 04:04. Astro Dark: 23:20 - 02:59

Total Clouds (% Sky Obscured)

94
98
82
63
46
55
60
65
68
71
72
71
68
69
72
75
78

Low Clouds (% Sky Obscured)

1
0
5
10
17
9
4
0
3
7
11
7
4
0
0
0
0

Medium Clouds (% Sky Obscured)

59
54
54
54
46
34
18
2
13
23
33
37
43
51
52
55
56

High Clouds (% Sky Obscured)

62
73
51
29
6
18
34
47
42
41
36
41
40
40
40
45
49

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

26
29
23
14
0
2
2
1
4
4
2
4
4
3
8
10
7

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

26
28
30
32
33
35
35
35
36
35
33
32
30
28
26
26
25

Feels Like (°C)

28
28
29
29
30
31
38
37
36
36
37
38
32
31
31
30
29

Dew Point (°C)

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

Relative Humidity (%)

63
58
54
48
42
37
33
29
25
28
31
35
40
48
55
58
61

Pressure (mb)

1016
1016
1016
1016
1016
1016
1015
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015

Ozone (du)

310
309
309
309
309
309
309
309
309
308
308
307
307
306
305
305
305

Forecast for Letňany, Praha 18, Czech Republic (50.14,14.52)

Generated: 26/07/26 09:16:56. Forecast: 26/07/26 to 01/08/26. Timezone: UTC+2.00