Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 16

Waning Crescent 16%

02:47

16:45

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

Sun - Rise: 07:28, Set: 18:05, Transit: 12:47. Moon - Rise: 02:47, Set: 16:45. Civil Dark: 18:38 - 06:55. Nautical Dark: 19:16 - 06:18. Astro Dark: 19:53 - 05:40

Total Clouds (% Sky Obscured)

99
99
96
99
97
98
93
100
95
86
48
51
70
91
89
97
86
85
92
97
97
97
96
98

Low Clouds (% Sky Obscured)

67
54
49
79
68
64
54
99
86
69
48
51
66
79
62
68
59
59
49
59
52
54
52
45

Medium Clouds (% Sky Obscured)

44
40
50
60
52
58
49
65
51
40
35
18
19
34
22
42
27
23
34
43
42
43
41
50

High Clouds (% Sky Obscured)

0
0
0
0
0
0
3
2
0
0
0
0
0
0
0
0
0
0
0
7
3
3
0
6

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
6
11
4
4
7
22
21
10
9
17
16
9
5
7
5
17
8
14
16
19
18

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
71
69
69
68
71
71
73
77
78
78
71
63
58
61
62
58
57
59
62
63
65
68
69

Pressure (mb)

1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1021
1021
1021
1020
1020
1020
1021
1021
1021
1021

Ozone (du)

281
280
279
278
282
283
283
282
282
282
283
286
285
282
282
282
282
284
283
283
282
282
284
286

Friday 17

Waning Crescent 9%

04:00

16:57

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

Sun - Rise: 07:29, Set: 18:03, Transit: 12:46. Moon - Rise: 04:00, Set: 16:57. Civil Dark: 18:36 - 06:57. Nautical Dark: 19:14 - 06:19. Astro Dark: 19:51 - 05:42

Total Clouds (% Sky Obscured)

89
100
99
100
99
81
79
92
27
20
30
38
18
19
11
9
3
2
0
5
0
0
0
0

Low Clouds (% Sky Obscured)

54
80
98
100
98
61
58
85
27
13
30
38
18
19
11
9
2
1
0
5
0
0
0
0

Medium Clouds (% Sky Obscured)

48
60
58
55
52
22
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

4
0
3
4
4
4
4
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

17
20
39
38
30
11
4
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0.2
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
8
8
8
10
10
10
8
7
6
7
10
9
9
9
8
9
9
8
6
5
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
69
68
70
74
70
69
66
66
72
67
68
60
50
44
39
37
37
39
46
50
54
57
60

Pressure (mb)

1021
1021
1021
1022
1022
1023
1023
1024
1024
1025
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1028
1028
1028
1028

Ozone (du)

286
286
285
285
286
284
284
285
285
285
285
288
291
290
289
292
293
295
297
296
295
294
294
292

Saturday 18

Waning Crescent 4%

05:11

17:08

23 Good
00 Good
01 Good
02 Good
03 Good
04 OK
05 OK
06 OK
07 OK
08 Good
09 OK
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

Sun - Rise: 07:31, Set: 18:01, Transit: 12:46. Moon - Rise: 05:11, Set: 17:08. Civil Dark: 18:34 - 06:58. Nautical Dark: 19:12 - 06:21. Astro Dark: 19:49 - 05:43

Total Clouds (% Sky Obscured)

0
0
0
0
0
33
31
32
37
10
16
52
66
55
62
59
60
68
59
66
85
100
96
98

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
3
0
0
0
0
0
8
12
7
6
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
32
31
2
0
23
25
0
0
0
2
30
38
49
78
100
69
84

High Clouds (% Sky Obscured)

0
0
0
0
0
11
14
9
17
9
16
39
48
38
41
32
40
49
39
48
74
100
95
96

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
6
11
2
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
4
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
2
1
2
2
2
3
3
3
3
4
6
7
8
9
9
9
9
8
8
7
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
3
3
3
2
1
1
1
0
-0
1
3
3
4
7
8
8
9
8
7
5
3
3
3

Dew Point (°C)

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

Relative Humidity (%)

63
64
67
68
72
73
76
78
80
80
69
62
55
49
42
37
33
33
40
48
54
57
60
65

Pressure (mb)

1028
1028
1028
1028
1027
1027
1027
1027
1026
1026
1026
1026
1025
1024
1023
1022
1021
1019
1019
1019
1019
1018
1018
1017

Ozone (du)

290
289
289
289
289
291
290
290
290
292
292
290
288
286
283
282
280
277
275
275
276
276
277
276

Sunday 19

Waning Crescent 1%

06:21

17:20

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

Sun - Rise: 07:33, Set: 17:59, Transit: 12:46. Moon - Rise: 06:21, Set: 17:20. Civil Dark: 18:32 - 07:00. Nautical Dark: 19:10 - 06:22. Astro Dark: 19:48 - 05:45

Total Clouds (% Sky Obscured)

100
99
99
99
100
100
99
99
98
98
99
100
100
100
100
100
100
100
99
99
98
99
99
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
14
20
12
6
0

Medium Clouds (% Sky Obscured)

81
93
97
99
100
90
89
83
73
81
88
92
88
83
77
79
75
85
81
80
93
91
94
99

High Clouds (% Sky Obscured)

89
73
57
70
82
94
93
92
92
95
98
100
99
83
100
100
100
100
85
70
49
66
83
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
0
0
0
0
0
0
0
0
1
1
2
3
2

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)

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

Chance of Frost

Temperature (°C)

5
5
5
4
4
4
4
4
4
4
5
6
8
9
10
11
12
12
11
10
9
9
8
8

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
68
69
71
71
72
73
71
71
69
65
57
52
48
44
43
41
42
47
52
54
55
56
56

Pressure (mb)

1017
1017
1016
1015
1015
1014
1014
1013
1013
1013
1013
1012
1012
1011
1010
1009
1009
1008
1008
1008
1008
1008
1008
1008

Ozone (du)

276
275
275
274
274
273
273
274
275
275
274
274
273
274
273
271
271
272
271
270
270
271
273
276

Monday 20

Waning Crescent 0%

07:32

17:33

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

Sun - Rise: 07:34, Set: 17:58, Transit: 12:46. Moon - Rise: 07:32, Set: 17:33. Civil Dark: 18:31 - 07:01. Nautical Dark: 19:08 - 06:24. Astro Dark: 19:46 - 05:46

Total Clouds (% Sky Obscured)

99
98
98
98
99
100
100
100
100
92
84
76
84
70
97
97
97
97
98
99
100
97
94
91

Low Clouds (% Sky Obscured)

0
0
0
10
31
40
45
42
19
15
60
48
16
7
0
8
18
30
24
16
8
8
7
6

Medium Clouds (% Sky Obscured)

97
94
92
96
96
96
98
91
97
83
77
73
80
56
52
55
45
29
31
33
34
49
67
86

High Clouds (% Sky Obscured)

96
92
88
89
89
89
93
96
100
72
41
20
25
13
47
61
77
89
93
96
100
87
73
54

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 (%)

3
3
1
1
1
0
10
15
18
14
10
0
1
1
0
11
17
24
20
16
14
20
24
29

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

Chance of Frost

Temperature (°C)

7
7
7
6
6
6
6
6
6
6
7
8
9
11
13
15
15
15
15
14
13
12
11
11

Feels Like (°C)

3
3
3
3
3
3
3
3
3
3
4
5
6
8
12
13
13
14
14
14
13
14
9
9

Dew Point (°C)

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

Relative Humidity (%)

55
53
58
60
59
59
58
58
59
61
59
57
56
54
54
53
56
59
60
65
69
75
76
76

Pressure (mb)

1008
1008
1008
1008
1007
1007
1007
1007
1007
1007
1007
1007
1007
1006
1006
1005
1005
1004
1004
1004
1005
1005
1005
1005

Ozone (du)

276
276
275
276
277
277
277
277
280
284
289
290
289
289
288
288
288
288
288
287
287
286
288
289

Tuesday 21

New Moon 1%

08:43

17:48

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

Sun - Rise: 07:36, Set: 17:56, Transit: 12:46. Moon - Rise: 08:43, Set: 17:48. Civil Dark: 18:29 - 07:03. Nautical Dark: 19:06 - 06:25. Astro Dark: 19:44 - 05:48

Total Clouds (% Sky Obscured)

92
93
95
91
76
61
63
74
91
89
85
82
82
88
95
90
87
77
71
64
60
61
72
79

Low Clouds (% Sky Obscured)

5
4
3
11
18
28
39
51
64
57
52
47
43
42
43
40
34
28
25
21
17
19
17
13

Medium Clouds (% Sky Obscured)

87
89
87
65
42
24
38
58
75
77
75
75
82
86
90
73
54
36
34
32
31
34
30
25

High Clouds (% Sky Obscured)

67
83
94
89
76
61
61
32
2
3
3
3
4
5
10
35
62
77
71
64
60
61
50
33

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
8
6
5
5
4
4
6
7
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
Very Light Rain
Light Rain
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

Precipitation Probability (%)

33
27
21
39
53
70
69
63
47
37
34
33
36
47
60
55
47
34
28
19
7
7
5
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
80
82
85
87
87
87
88
88
88
83
77
72
68
65
61
64
66
68
71
76
81
81
81

Pressure (mb)

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

Ozone (du)

291
292
294
296
296
296
296
295
294
293
296
298
301
303
305
307
308
309
311
310
309
308
305
303

Wednesday 22

Waxing Crescent 4%

09:55

18:08

23 Bad
00 Bad
01 OK
02 OK
03 OK
04 OK
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

Sun - Rise: 07:38, Set: 17:54, Transit: 12:46. Moon - Rise: 09:55, Set: 18:08. Civil Dark: 18:27 - 07:04. Nautical Dark: 19:05 - 06:27. Astro Dark: 19:42 - 05:49

Total Clouds (% Sky Obscured)

61
50
37
33
33
30
55
77
99
99
99
99
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

9
5
1
1
2
3
2
2
2
21
40
60
66
70
68
62
53
44
45
52
52

Medium Clouds (% Sky Obscured)

22
24
21
18
12
6
26
45
64
74
83
91
94
97
100
92
85
77
83
89
95

High Clouds (% Sky Obscured)

18
6
0
9
18
18
41
65
89
82
75
69
72
74
80
86
94
100
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
7
6

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
Very Light Rain
Light Rain

Precipitation Probability (%)

2
3
2
2
1
0
0
3
5
20
30
39
42
42
37
34
33
40
49
63
81

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.6

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
83
85
88
87
85
84
84
85
85
82
81
79
80
80
80
81
84
84
87
90

Pressure (mb)

1009
1010
1010
1010
1010
1009
1009
1009
1009
1009
1008
1008
1008
1007
1007
1006
1006
1005
1005
1005
1005

Ozone (du)

300
299
298
297
297
296
295
292
290
287
286
285
284
286
287
289
289
289
289
289
289

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

Generated: 16/10/25 23:32:26. Forecast: 16/10/25 to 22/10/25. Timezone: UTC+2.00