Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 26

Full Moon 99%

16:26

07:09

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

Sun - Rise: 06:42, Set: 16:48, Transit: 11:45. Moon - Rise: 16:26, Set: 07:09. Civil Dark: 17:22 - 06:09. Nautical Dark: 18:00 - 05:31. Astro Dark: 18:37 - 04:53

Total Clouds (% Sky Obscured)

52
44
34
8
53
25
40
60
20
42
81
100
100
100
100
100
100
93
97
92
92
87
79
71

Low Clouds (% Sky Obscured)

9
2
2
2
7
25
25
42
20
31
7
1
1
1
0
1
1
0
1
1
1
0
0
0

Medium Clouds (% Sky Obscured)

0
2
2
5
33
3
17
22
0
0
0
33
37
50
75
82
99
93
93
87
76
76
64
67

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
50
100
100
100
100
100
100
87
93
89
51
50
3
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
1
0
0
3
8
4
1
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)

9
9
10
11
11
12
14
14
13
13
12
9
6
4
5
5
5
4
4
4
3
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
3
3
3
4
4
6
6
7
8
8
9
8
7
5
5
5
5
5
5
4
5
5
5

Dew Point (°C)

3
3
3
2
2
2
3
3
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3

Relative Humidity (%)

78
76
75
74
69
64
61
58
52
51
48
49
54
58
63
68
70
70
73
74
75
78
79
81

Pressure (mb)

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

Ozone (du)

314
315
313
309
302
298
297
295
293
293
290
288
285
284
284
284
281
281
279
278
276
275
273
273

Tuesday 27

Waning Gibbous 95%

16:54

08:37

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

Sun - Rise: 06:44, Set: 16:47, Transit: 11:45. Moon - Rise: 16:54, Set: 08:37. Civil Dark: 17:20 - 06:10. Nautical Dark: 17:58 - 05:32. Astro Dark: 18:36 - 04:55

Total Clouds (% Sky Obscured)

63
73
83
86
84
76
86
88
79
66
29
16
3
0
0
0
0
0
0
0
3
36
87
92

Low Clouds (% Sky Obscured)

1
18
10
53
67
67
72
72
58
56
29
16
3
0
0
0
0
0
0
0
0
3
0
19

Medium Clouds (% Sky Obscured)

62
65
56
28
33
32
29
26
17
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
2
1
1
0
0
0
0
0
0
0
0
0
0
0
0
3
36
87
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
1
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
4
4
3
4
4
5
5
5
5
5
5
4
4
5
4
4
4
4
4
4
3
4
3

Chance of Frost

Temperature (°C)

7
6
6
6
7
9
10
11
12
13
13
14
13
11
10
9
8
8
7
7
6
6
5
5

Feels Like (°C)

5
5
4
4
5
6
8
8
9
10
10
13
12
10
9
8
8
7
7
6
5
5
3
3

Dew Point (°C)

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

Relative Humidity (%)

82
85
79
78
74
67
61
57
54
52
50
45
52
57
59
62
65
68
70
71
74
74
74
75

Pressure (mb)

1022
1023
1023
1023
1024
1024
1023
1023
1023
1022
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1023

Ozone (du)

272
270
269
268
267
268
269
269
270
270
270
269
268
267
267
268
268
269
269
269
268
268
268
267

Wednesday 28

Waning Gibbous 89%

17:34

10:04

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 OK
02 OK
03 OK

Sun - Rise: 06:46, Set: 16:45, Transit: 11:45. Moon - Rise: 17:34, Set: 10:04. Civil Dark: 17:18 - 06:12. Nautical Dark: 17:56 - 05:34. Astro Dark: 18:34 - 04:56

Total Clouds (% Sky Obscured)

74
100
100
100
100
100
91
89
100
100
100
100
100
100
100
100
100
100
96
81
55
34
27
26

Low Clouds (% Sky Obscured)

0
0
0
0
0
11
54
58
63
98
95
95
98
92
79
66
68
67
64
56
44
34
27
26

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
14
37
97
89
56
98
99
100
97
100
98
45
37
21
8
4
2
0

High Clouds (% Sky Obscured)

74
100
100
100
100
100
30
51
100
100
100
100
100
100
92
97
76
80
4
4
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
1
2
3
7
17
38
30
42
26
22
8
4
2
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
1
1
1
1
1
2
4
5
6
5
5
5
6
6
5
5
5
5
5
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
2
2
3
3
5
7
7
8
9
8
8
8
9
9
8
8
8
8
8
8
7
7
7

Dew Point (°C)

1
0
1
1
1
1
2
2
3
4
4
6
7
8
9
8
8
8
8
8
8
7
6
6

Relative Humidity (%)

73
75
76
77
73
67
64
60
58
58
63
71
77
84
88
88
90
88
88
88
90
91
91
91

Pressure (mb)

1023
1023
1023
1024
1024
1025
1025
1025
1025
1025
1025
1025
1026
1026
1027
1028
1028
1028
1029
1029
1029
1029
1029
1030

Ozone (du)

266
266
266
266
268
268
269
269
269
270
272
276
278
281
287
292
295
297
301
304
305
305
305
304

Thursday 29

Waning Gibbous 80%

18:30

11:22

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

Sun - Rise: 06:47, Set: 16:43, Transit: 11:45. Moon - Rise: 18:30, Set: 11:22. Civil Dark: 17:17 - 06:14. Nautical Dark: 17:55 - 05:35. Astro Dark: 18:32 - 04:58

Total Clouds (% Sky Obscured)

27
25
26
24
20
17
22
25
29
43
60
79
77
70
67
73
74
80
81
79
96
96
95
95

Low Clouds (% Sky Obscured)

27
24
26
24
20
15
18
19
21
31
39
54
50
40
31
48
62
77
81
79
93
91
89
87

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
11
24
42
41
41
37
40
42
44
37
32
24
35
43
44

High 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

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
3
4
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
6
6
7
8
9
10
10
10
10
10
9
8
8
7
7
7
7
8
7
5
6
6

Dew Point (°C)

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

Relative Humidity (%)

93
91
91
91
88
77
68
61
56
53
52
52
59
72
77
81
82
82
84
84
84
78
77
77

Pressure (mb)

1030
1030
1030
1030
1030
1030
1030
1030
1030
1029
1029
1029
1029
1029
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030

Ozone (du)

303
303
304
305
305
306
306
306
307
307
307
306
304
301
299
297
294
293
292
290
288
287
285
282

Friday 30

Waning Gibbous 76%

19:43

12:23

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
03 Bad

Sun - Rise: 06:49, Set: 16:41, Transit: 11:45. Moon - Rise: 19:43, Set: 12:23. Civil Dark: 17:15 - 06:15. Nautical Dark: 17:53 - 05:37. Astro Dark: 18:31 - 04:59

Total Clouds (% Sky Obscured)

97
78
99
99
82
48
44
66
85
91
88
88
81
77
68
91
94
96
89
83
77
72
67
61

Low Clouds (% Sky Obscured)

80
61
67
74
68
48
44
62
68
66
63
62
59
52
50
79
81
81
78
76
74
72
67
61

Medium Clouds (% Sky Obscured)

37
34
30
29
27
30
25
23
20
20
17
16
11
6
0
32
33
34
22
16
14
16
14
12

High Clouds (% Sky Obscured)

1
2
0
0
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 (%)

6
6
2
9
11
10
29
32
29
26
29
42
38
28
1
11
12
7
9
7
3
11
11
3

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
3
4
6
7
8
7
7
6
6
6
6
6
6
5
5
5
5
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
6
6
6
8
10
10
10
9
8
9
9
7
6
6
6
6
6
5
5
6
5
6

Dew Point (°C)

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

Relative Humidity (%)

78
81
88
87
84
80
71
63
58
55
53
54
57
66
73
77
78
78
79
81
84
85
87
88

Pressure (mb)

1030
1030
1030
1030
1030
1029
1029
1029
1029
1028
1028
1028
1028
1028
1028
1029
1028
1028
1028
1028
1028
1028
1028
1028

Ozone (du)

279
279
280
281
284
289
293
291
291
288
284
282
279
276
274
271
270
268
267
266
265
264
265
266

Saturday 31

Waning Gibbous 69%

21:06

13:06

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
03 Bad

Sun - Rise: 06:51, Set: 16:39, Transit: 11:45. Moon - Rise: 21:06, Set: 13:06. Civil Dark: 17:13 - 06:17. Nautical Dark: 17:52 - 05:38. Astro Dark: 18:29 - 05:01

Total Clouds (% Sky Obscured)

55
52
46
35
38
36
40
43
42
42
47
47
48
49
55
54
52
51
52
53
54
54
55
65

Low Clouds (% Sky Obscured)

50
41
25
21
17
17
16
20
20
19
22
21
27
29
40
42
38
43
42
40
38
29
25
25

Medium Clouds (% Sky Obscured)

9
9
10
5
5
9
12
16
22
32
42
47
48
40
33
41
40
41
37
32
25
34
42
50

High Clouds (% Sky Obscured)

1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
20
43
65

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 (%)

24
33
35
34
35
40
38
35
33
31
27
16
16
13
7
10
12
11
16
14
4
12
15
1

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
6
6
6
6
6
7
8
8
13
12
12
12
12
12
8
8
9
8
8
8
6
6

Dew Point (°C)

5
5
5
5
5
4
5
5
4
4
4
4
4
4
4
4
4
4
5
5
5
4
4
4

Relative Humidity (%)

90
90
90
90
84
77
72
66
59
56
57
59
63
66
69
73
77
79
84
84
85
85
85
88

Pressure (mb)

1028
1028
1028
1028
1028
1028
1029
1028
1028
1027
1027
1027
1027
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028

Ozone (du)

267
267
267
267
267
266
266
265
265
264
263
263
263
263
263
263
264
265
266
267
267
267
267
266

Sunday 1

Third Quarter 58%

22:31

13:37

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

Sun - Rise: 06:52, Set: 16:38, Transit: 11:45. Moon - Rise: 22:31, Set: 13:37. Civil Dark: 17:12 - 06:18. Nautical Dark: 17:50 - 05:40. Astro Dark: 18:28 - 05:02

Total Clouds (% Sky Obscured)

60
55
55
53
51
58
63
63
63
70
76
78
84
79
80
84
86
85
89
93
100

Low Clouds (% Sky Obscured)

24
27
38
32
30
28
27
22
18
17
22
35
51
65
80
84
86
84
81
85
90

Medium Clouds (% Sky Obscured)

49
48
52
47
42
36
41
46
47
51
55
59
61
58
50
38
21
10
13
15
18

High Clouds (% Sky Obscured)

50
27
0
0
0
0
3
6
7
4
3
2
12
18
22
30
40
44
63
59
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

Fog (%)

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

Precipitation Probability (%)

10
10
1
6
5
3
1
2
0
1
3
2
5
4
0
5
5
3
3
2
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
90
90
88
81
74
69
63
60
55
58
60
62
66
70
74
75
78
79
79
77

Pressure (mb)

1028
1028
1029
1029
1029
1029
1029
1029
1028
1028
1028
1027
1027
1028
1028
1028
1028
1028
1028
1028
1028

Ozone (du)

266
265
265
265
264
264
264
264
265
265
265
266
266
267
267
268
269
269
270
271
273

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

Generated: 26/10/26 04:24:53. Forecast: 25/10/26 to 01/11/26. Timezone: UTC+1.00