Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 3

Waning Gibbous 60%

21:54

14:15

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
03 Bad
04 Bad
05 Bad

Sun - Rise: 06:20, Set: 19:42, Transit: 13:01. Moon - Rise: 21:54, Set: 14:15. Civil Dark: 20:15 - 05:49. Nautical Dark: 20:56 - 05:08. Astro Dark: 21:40 - 04:24

Total Clouds (% Sky Obscured)

81
76
70
61
55
100
100
100
91
100
100
100
87
88
81
100
100
96
96
66
79
99
91
99

Low Clouds (% Sky Obscured)

17
24
16
1
17
1
3
22
34
29
3
59
67
77
31
0
0
0
0
0
0
0
30
58

Medium Clouds (% Sky Obscured)

46
46
42
41
39
37
56
100
81
100
84
92
63
49
37
4
4
26
15
35
50
70
50
63

High Clouds (% Sky Obscured)

6
5
11
12
27
100
100
100
55
90
98
100
57
10
58
100
100
89
88
46
38
95
66
62

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
1
10
18
65
29
1
0
0
1
1
1
1
0
0
1
2

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

3
3
3
5
8
9
10
10
11
11
12
11
11
9
11
11
9
9
9
8
8
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
14
17
19
19
20
19
20
20
20
20
19
17
17
16
15
15
15
15
16
16
15
15
15

Dew Point (°C)

10
11
11
11
10
9
8
9
9
9
8
9
15
15
14
15
15
14
14
14
15
15
15
15

Relative Humidity (%)

74
76
71
62
50
43
40
39
39
38
37
40
76
77
75
78
81
82
82
83
86
87
87
88

Pressure (mb)

1020
1020
1021
1021
1020
1020
1020
1019
1019
1018
1018
1018
1019
1018
1019
1019
1019
1019
1019
1019
1018
1018
1018
1017

Ozone (du)

307
308
306
305
304
305
308
310
312
310
309
307
308
307
305
302
301
301
301
299
297
296
295
295

Friday 4

Third Quarter 52%

22:42

15:34

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 OK
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 06:22, Set: 19:39, Transit: 13:01. Moon - Rise: 22:42, Set: 15:34. Civil Dark: 20:13 - 05:50. Nautical Dark: 20:53 - 05:10. Astro Dark: 21:37 - 04:26

Total Clouds (% Sky Obscured)

87
88
78
70
89
84
100
93
77
91
87
61
26
33
45
70
85
79
87
92
97
100
100
100

Low Clouds (% Sky Obscured)

52
25
27
30
73
55
38
13
10
18
2
0
0
0
0
39
50
51
62
69
75
83
77
40

Medium Clouds (% Sky Obscured)

37
33
42
31
41
35
33
24
38
49
4
25
20
26
31
52
64
63
45
63
83
100
100
100

High Clouds (% Sky Obscured)

68
72
62
44
57
73
100
93
46
62
86
35
3
5
14
6
21
1
0
8
44
47
68
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
7
4
4
5
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

5
1
0
2
8
2
0
0
0
2
2
3
9
39
59
77
77
87
69
67
76
82
95
85

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.6
0.8
0.5
0.3
0.3
0.3
1.5
0.6

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

15
15
15
15
15
15
15
15
14
14
15
15
16
17
16
17
18
18
18
17
16
15
14
14

Relative Humidity (%)

85
86
80
72
67
60
54
49
44
42
44
47
50
55
60
70
79
80
85
88
86
83
79
83

Pressure (mb)

1017
1017
1017
1017
1016
1016
1015
1014
1013
1012
1012
1011
1011
1011
1011
1012
1013
1013
1013
1014
1014
1015
1015
1016

Ozone (du)

293
293
292
291
289
289
287
285
285
284
286
287
286
286
286
285
285
285
286
286
284
285
288
290

Saturday 5

Waning Crescent 40%

23:47

16:40

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

Sun - Rise: 06:23, Set: 19:37, Transit: 13:00. Moon - Rise: 23:47, Set: 16:40. Civil Dark: 20:10 - 05:52. Nautical Dark: 20:51 - 05:12. Astro Dark: 21:34 - 04:29

Total Clouds (% Sky Obscured)

100
100
79
36
17
69
75
37
75
82
37
44
53
41
38
79
65
69
37
36
34
34
37
41

Low Clouds (% Sky Obscured)

9
53
56
36
17
21
22
19
13
15
25
7
27
6
19
0
0
0
0
0
17
34
37
41

Medium Clouds (% Sky Obscured)

100
100
53
0
0
0
10
25
41
33
28
40
29
20
25
20
13
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
14
2
0
40
35
2
13
28
1
3
53
25
8
55
41
64
29
36
28
18
10
16

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

Light Rain
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 (%)

73
38
14
12
6
3
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.4
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

14
14
14
13
11
9
7
6
6
5
5
5
6
8
7
8
8
9
9
9
9
9
9
9

Relative Humidity (%)

86
85
85
74
59
49
41
37
33
32
32
33
37
43
46
51
56
60
65
68
73
74
76
77

Pressure (mb)

1017
1017
1018
1019
1019
1019
1019
1019
1020
1019
1019
1019
1020
1021
1021
1022
1023
1023
1024
1024
1025
1025
1025
1025

Ozone (du)

293
297
306
309
313
313
312
313
312
311
311
310
308
306
306
304
303
302
302
299
296
294
294
294

Sunday 6

Waning Crescent 28%

01:07

17:29

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

Sun - Rise: 06:25, Set: 19:35, Transit: 13:00. Moon - Rise: 01:07, Set: 17:29. Civil Dark: 20:08 - 05:53. Nautical Dark: 20:48 - 05:13. Astro Dark: 21:31 - 04:31

Total Clouds (% Sky Obscured)

64
45
32
36
40
36
30
22
16
9
3
2
3
32
26
40
40
59
79
96
99
100
100
92

Low Clouds (% Sky Obscured)

36
27
32
28
32
31
25
18
13
7
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
3
7
8

High Clouds (% Sky Obscured)

43
27
8
13
19
21
20
17
12
7
1
1
2
32
22
35
40
59
79
95
99
100
100
89

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
4
4
5
5
5
5
4
4
4
3
4
4
4
3
3
3
3
3
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
79
71
64
57
50
44
40
38
36
35
36
38
44
49
53
53
56
57
59
60
61
62
62

Pressure (mb)

1026
1026
1026
1027
1027
1027
1026
1026
1025
1025
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023

Ozone (du)

293
293
293
293
295
295
295
296
294
293
292
292
293
292
292
292
293
292
292
292
293
293
292
292

Monday 7

Waning Crescent 18%

02:34

18:04

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 OK
01 OK
02 OK
03 Bad
04 Bad
05 Bad

Sun - Rise: 06:26, Set: 19:33, Transit: 13:00. Moon - Rise: 02:34, Set: 18:04. Civil Dark: 20:06 - 05:55. Nautical Dark: 20:46 - 05:15. Astro Dark: 21:29 - 04:33

Total Clouds (% Sky Obscured)

83
75
83
58
87
77
61
58
66
97
100
99
100
99
88
78
69
54
38
22
24
25
27
36

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
2
3
0
0
0
0
0
0
14
25
27
36

Medium Clouds (% Sky Obscured)

37
43
11
6
25
29
30
42
48
50
53
45
38
39
68
60
50
41
32
22
21
20
20
20

High Clouds (% Sky Obscured)

77
66
76
58
75
64
45
36
45
93
100
99
100
99
74
47
20
19
15
4
7
11
14
18

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
Very Light Rain
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
3
6
7
8
7
9
7
12
5
14
11
10
18
37
44
40

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
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

12
13
14
16
18
21
23
24
26
27
27
28
27
25
23
22
21
20
20
19
19
19
18
18

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
62
58
51
43
38
35
33
31
28
28
28
33
38
40
43
47
50
54
57
62
64
65
68

Pressure (mb)

1023
1022
1022
1022
1021
1021
1020
1020
1019
1018
1018
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016

Ozone (du)

292
293
292
292
290
289
289
290
290
289
288
289
290
291
291
293
294
296
296
295
295
293
292
290

Tuesday 8

Waning Crescent 10%

04:01

18:29

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
03 Bad
04 Bad
05 Bad

Sun - Rise: 06:28, Set: 19:31, Transit: 12:59. Moon - Rise: 04:01, Set: 18:29. Civil Dark: 20:04 - 05:56. Nautical Dark: 20:43 - 05:17. Astro Dark: 21:26 - 04:35

Total Clouds (% Sky Obscured)

46
57
54
50
49
48
48
47
64
82
100
97
94
92
95
97
99
99
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

46
55
52
47
39
41
43
45
47
50
53
49
43
37
37
35
36
37
39
43
50
55
59
64

Medium Clouds (% Sky Obscured)

26
29
30
27
25
17
9
0
0
0
0
0
0
0
32
64
96
97
98
100
100
100
100
96

High Clouds (% Sky Obscured)

24
25
21
14
13
13
16
19
48
74
99
87
75
63
56
50
49
67
78
87
90
96
100
100

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
8
7
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

Very 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
Very Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

48
65
51
29
5
13
16
7
5
5
1
2
2
2
8
15
16
33
40
30
51
68
95
95

Precipitation Amount (mm)

0.2
0.6
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.7
0.8

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
19
19
21
23
25
26
27
28
27
27
27
25
24
22
21
21
20
19
19
18
17
16
15

Feels Like (°C)

19
18
18
20
20
20
22
22
23
28
26
25
25
25
25
19
19
20
20
19
19
16
16
17

Dew Point (°C)

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

Relative Humidity (%)

70
70
71
64
57
51
44
39
34
34
36
36
41
47
53
52
52
52
52
52
51
61
72
85

Pressure (mb)

1016
1016
1016
1015
1015
1015
1014
1014
1013
1013
1013
1012
1013
1013
1013
1013
1014
1014
1014
1014
1015
1015
1015
1015

Ozone (du)

290
290
290
290
289
289
289
289
289
289
289
289
289
289
290
289
289
289
289
289
289
289
290
290

Wednesday 9

Waning Crescent 4%

05:25

18:48

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: 06:29, Set: 19:29, Transit: 12:59. Moon - Rise: 05:25, Set: 18:48. Civil Dark: 20:01 - 05:58. Nautical Dark: 20:41 - 05:19. Astro Dark: 21:23 - 04:37

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
98
95
93
95
98
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

70
76
68
59
53
56
57
60
40
21
3
13
24
34
39
44
47
33
19
4

Medium Clouds (% Sky Obscured)

92
87
81
75
72
80
91
100
97
95
93
87
79
71
62
54
49
43
40
43

High Clouds (% Sky Obscured)

100
100
100
100
100
85
70
58
55
54
61
76
91
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

5
5
4
4
4
4
6
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

Precipitation Type

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

Precipitation Probability (%)

95
95
86
78
70
56
46
37
31
23
9
14
15
23
59
81
92
72
50
10

Precipitation Amount (mm)

0.8
0.6
0.5
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0.4
0.6
0.4
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
15
15
16
17
17
17
18
18
19
19
19
18
18
17
16
16
15
15
15

Feels Like (°C)

16
16
16
15
15
15
15
15
15
17
17
17
17
18
17
16
15
15
15
14

Dew Point (°C)

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

Relative Humidity (%)

86
87
89
87
85
82
78
74
71
70
67
64
67
71
74
75
77
77
78
78

Pressure (mb)

1015
1015
1015
1015
1015
1015
1014
1014
1013
1013
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013

Ozone (du)

291
292
293
294
296
297
298
299
300
301
302
303
305
307
309
310
312
314
316
319

Forecast for Královské Vinohrady, Praha 2, Czech Republic (50.08,14.44)

Generated: 03/09/26 06:28:35. Forecast: 03/09/26 to 09/09/26. Timezone: UTC+2.00