Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 17

Waning Crescent 9%

03:54

16:39

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 OK
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 07:24, Set: 17:59, Transit: 12:41. Moon - Rise: 03:54, Set: 16:39. Civil Dark: 18:32 - 06:51. Nautical Dark: 19:10 - 06:13. Astro Dark: 19:48 - 05:35

Total Clouds (% Sky Obscured)

91
89
90
90
89
85
100
100
100
95
90
87
100
92
91
75
48
87
32
60
71
60
57
43

Low Clouds (% Sky Obscured)

65
65
80
79
71
53
89
63
60
70
57
67
100
81
79
69
41
86
32
60
64
60
52
38

Medium Clouds (% Sky Obscured)

0
0
0
0
21
61
95
89
79
67
58
45
85
52
58
7
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
1
2
0
9
12
3
1
4
2
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
8
9
9
9
9
8
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
6
4
6
5
5
11
13
8
17
35
33
32
36
35
29
21
22
18
17
7
5

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
60
65
68
73
77
78
79
81
81
82
82
82
84
84
79
79
84
83
83
76
71
69
64

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1020
1020
1020
1020
1021
1021
1022
1023
1024
1025
1025
1026

Ozone (du)

281
282
282
283
284
283
281
281
281
282
283
283
283
283
281
283
288
290
294
296
297
294
297
299

Saturday 18

Waning Crescent 4%

05:05

16:51

13 Bad
14 OK
15 OK
16 OK
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
09 Good
10 Good
11 Good
12 Good

Sun - Rise: 07:26, Set: 17:57, Transit: 12:40. Moon - Rise: 05:05, Set: 16:51. Civil Dark: 18:30 - 06:53. Nautical Dark: 19:08 - 06:15. Astro Dark: 19:46 - 05:37

Total Clouds (% Sky Obscured)

41
38
25
25
17
2
2
1
1
0
4
2
18
17
5
14
17
5
3
14
3
3
2
14

Low Clouds (% Sky Obscured)

30
24
24
25
17
1
1
1
0
0
4
1
18
17
5
14
17
1
1
1
2
2
1
14

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
11
1
0
0
0

ISS Passover

Visibility (miles)

6
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 (%)

11
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)

10
10
10
9
8
5
4
3
3
3
3
4
4
3
3
3
3
3
3
2
2
2
3
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
4
4
5
5
3
2
2
1
1
1
1
0
-1
-0
-1
-1
-1
-1
0
2
4
5
6

Dew Point (°C)

0
-1
-2
-3
-2
-1
-1
-1
-2
-2
-2
-2
-2
-3
-3
-3
-3
-3
-2
-2
-2
-1
-0
-1

Relative Humidity (%)

58
52
48
47
54
65
69
73
73
76
76
77
78
78
80
81
81
84
86
84
76
69
64
57

Pressure (mb)

1026
1026
1026
1026
1026
1027
1027
1028
1028
1028
1029
1029
1028
1028
1028
1028
1028
1028
1027
1027
1027
1026
1026
1025

Ozone (du)

298
298
299
298
299
298
298
295
292
289
288
288
289
288
287
285
284
285
291
288
287
288
290
287

Sunday 19

Waning Crescent 1%

06:16

17:02

13 OK
14 Good
15 Bad
16 Good
17 Good
18 OK
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
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 07:27, Set: 17:55, Transit: 12:40. Moon - Rise: 06:16, Set: 17:02. Civil Dark: 18:28 - 06:54. Nautical Dark: 19:06 - 06:16. Astro Dark: 19:44 - 05:39

Total Clouds (% Sky Obscured)

20
15
52
8
16
46
64
64
63
68
86
81
78
82
100
100
95
100
91
95
95
99
97
95

Low Clouds (% Sky Obscured)

20
12
5
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
8
13
8
4

Medium Clouds (% Sky Obscured)

0
0
52
0
0
46
62
56
48
65
67
64
59
67
100
97
89
100
82
92
91
88
95
94

High Clouds (% Sky Obscured)

2
4
3
5
16
19
37
32
54
23
71
76
75
82
79
75
75
75
70
57
40
36
44
57

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)

6
6
7
7
5
4
3
3
3
2
1
2
2
2
2
2
2
3
4
4
8
11
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-1
-2
-2
-2
0
0
1
0
0
0
-1
-1
-1
-1
-1
-2
-1
-2
-2
-2
-2
-2
-2
-2

Relative Humidity (%)

52
49
46
48
59
68
75
76
79
79
77
76
76
74
73
71
72
71
69
69
59
56
53
50

Pressure (mb)

1024
1023
1022
1021
1021
1021
1021
1021
1020
1020
1019
1019
1018
1018
1017
1016
1016
1015
1015
1014
1014
1014
1014
1013

Ozone (du)

285
283
282
281
278
279
281
280
280
279
277
273
271
270
269
270
270
271
270
271
270
269
270
269

Monday 20

Waning Crescent 0%

07:27

17:13

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
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 07:29, Set: 17:53, Transit: 12:40. Moon - Rise: 07:27, Set: 17:13. Civil Dark: 18:26 - 06:56. Nautical Dark: 19:04 - 06:18. Astro Dark: 19:42 - 05:40

Total Clouds (% Sky Obscured)

93
84
73
56
65
85
100
96
97
99
100
99
100
98
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
5
9
14
9
5
0
8
17
25
18
10
6
3
3

Medium Clouds (% Sky Obscured)

57
54
73
56
54
85
86
79
68
85
87
89
96
88
93
100
100
100
100
100
97
98
79
58

High Clouds (% Sky Obscured)

69
58
42
30
50
77
97
75
96
85
99
84
92
73
80
70
71
75
80
86
93
100
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
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
1
1
1
2
1
2
3
3
7
8
6
9
8

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
14
13
12
11
9
8
7
6
6
4
4
4
3
2
3
3
4
4
4
5
7
7
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-2
-1
-0
1
1
1
0
-1
-1
-1
-1
-1
-2
-2
-2
-2
-2
-2
-2
-1
-2
-1
-1
-1

Relative Humidity (%)

50
49
51
55
58
61
62
63
62
62
64
61
60
60
62
62
60
59
59
63
59
56
54
52

Pressure (mb)

1012
1012
1011
1011
1010
1011
1011
1011
1011
1011
1011
1010
1010
1010
1009
1009
1008
1008
1008
1008
1008
1008
1007
1007

Ozone (du)

268
269
267
266
265
265
267
268
268
269
270
271
273
276
279
279
279
281
279
279
280
280
281
281

Tuesday 21

New Moon 0%

08:38

17:26

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
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 07:31, Set: 17:51, Transit: 12:40. Moon - Rise: 08:38, Set: 17:26. Civil Dark: 18:24 - 06:57. Nautical Dark: 19:02 - 06:19. Astro Dark: 19:40 - 05:42

Total Clouds (% Sky Obscured)

97
88
92
88
85
83
79
81
84
84
84
84
83
84
84
86
89
91
93
94
96
97
97
98

Low Clouds (% Sky Obscured)

2
2
2
1
2
8
5
16
27
41
45
47
48
57
66
73
72
69
79
85
88
91
86
79

Medium Clouds (% Sky Obscured)

39
51
60
79
71
74
77
80
76
72
66
60
52
51
50
49
62
60
57
67
72
76
81
86

High Clouds (% Sky Obscured)

97
68
47
20
15
8
20
30
25
25
25
30
30
35
35
30
22
11
6
4
4
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
8
6
4
5

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
3
4
4
7
6
4
6
5
1
15
15
5
14
14
11
12
10
11
16
25

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

51
51
53
57
65
70
69
74
74
75
76
79
82
87
85
84
84
87
88
91
91
91
93
91

Pressure (mb)

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

Ozone (du)

282
283
283
283
282
282
282
281
281
281
282
282
282
283
284
286
287
288
289
290
289
288
287
289

Wednesday 22

Waxing Crescent 1%

09:51

17:41

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
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 07:32, Set: 17:49, Transit: 12:40. Moon - Rise: 09:51, Set: 17:41. Civil Dark: 18:22 - 06:59. Nautical Dark: 19:00 - 06:21. Astro Dark: 19:38 - 05:43

Total Clouds (% Sky Obscured)

98
94
90
85
87
90
93
88
83
77
72
65
62
72
89
100
100
100
100
99
98
97
97
97

Low Clouds (% Sky Obscured)

74
70
66
64
68
72
80
75
75
72
65
56
47
55
63
74
80
90
99
98
97
96
82
69

Medium Clouds (% Sky Obscured)

90
84
76
69
62
45
40
36
18
7
10
12
17
32
47
63
69
72
75
79
73
68
54
50

High Clouds (% Sky Obscured)

0
13
20
17
11
5
0
4
7
11
12
12
13
40
71
100
100
100
100
70
38
15
41
65

ISS Passover

Visibility (miles)

6
6
4
2
0
0
0
0
1
2
3
2
1
0
0
0
0
0
0
0
3
6
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

39
55
62
61
51
36
16
18
16
9
17
17
18
18
14
9
13
19
26
48
61
71
72
66

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
95
96
96
100
100
100
100
100
100
100
98
98
100
98
98
98
98
98
96
90
84
80
74

Pressure (mb)

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

Ozone (du)

290
292
297
302
307
307
308
308
307
306
305
304
303
302
301
300
300
299
298
297
297
296
296
296

Thursday 23

Waxing Crescent 4%

11:02

18:01

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: 07:34, Set: 17:47, Transit: 12:40. Moon - Rise: 11:02, Set: 18:01. Civil Dark: 18:21 - 07:01. Nautical Dark: 18:59 - 06:22. Astro Dark: 19:36 - 05:45

Total Clouds (% Sky Obscured)

97
95
92
88
91
95
100
100
100
100
100
100
100
100
100
100
99
97
95

Low Clouds (% Sky Obscured)

59
60
63
67
74
75
75
79
82
87
86
85
83
84
85
85
77
68
58

Medium Clouds (% Sky Obscured)

41
48
70
88
90
85
82
75
82
89
95
97
97
98
97
94
95
94
95

High Clouds (% Sky Obscured)

92
83
71
60
49
72
99
100
100
100
100
100
100
100
99
99
67
36
5

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

66
57
59
64
63
61
67
81
95
95
95
95
95
95
95
95
94
64
35

Precipitation Amount (mm)

0.4
0.2
0.3
0.4
0.3
0.3
0.3
0.5
0.7
1.4
2.1
2.1
2.2
2.1
1.6
1.4
0.7
0.3
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

6
6
7
9
10
10
10
10
10
10
10
10
10
10
9
7
6
6
6

Relative Humidity (%)

71
65
73
83
93
95
96
98
96
98
96
96
96
96
90
81
76
81
84

Pressure (mb)

1004
1004
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1004
1004
1004
1005
1006

Ozone (du)

296
296
294
293
291
293
295
297
298
300
301
300
298
296
296
297
298
299
301

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

Generated: 17/10/25 13:47:27. Forecast: 17/10/25 to 23/10/25. Timezone: UTC+2.00