Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 4

Waning Crescent 31%

00:09

16:01

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 OK
07 OK
08 OK
09 OK
10 Good
11 OK
12 OK
13 OK

Sun - Rise: 07:03, Set: 18:27, Transit: 12:44. Moon - Rise: 00:09, Set: 16:01. Civil Dark: 19:00 - 06:30. Nautical Dark: 19:37 - 05:53. Astro Dark: 20:16 - 05:14

Total Clouds (% Sky Obscured)

74
80
84
96
90
100
92
83
90
99
99
78
81
82
79
78
44
35
33
19
14
24
23
21

Low Clouds (% Sky Obscured)

1
6
15
16
31
27
32
35
39
44
45
36
39
44
46
45
42
35
33
19
13
20
21
17

Medium Clouds (% Sky Obscured)

14
17
39
13
19
2
27
18
22
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

74
80
84
96
90
100
66
34
54
97
97
36
38
43
33
30
4
2
0
0
1
2
2
5

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
2
8
12
9
7
55
60
61
62
51
52
7
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
3
2
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)

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

Chance of Frost

Temperature (°C)

20
20
19
18
16
14
13
13
12
12
11
10
10
9
9
9
9
9
10
12
14
15
16
17

Feels Like (°C)

18
18
18
17
15
13
12
12
11
10
10
10
9
8
8
8
8
10
12
13
15
17
17
17

Dew Point (°C)

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

Relative Humidity (%)

38
39
40
48
58
70
77
83
84
83
83
84
87
87
87
87
87
88
85
75
68
64
56
49

Pressure (mb)

1027
1027
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1026
1025

Ozone (du)

288
288
288
288
291
293
295
296
295
294
294
294
296
298
299
299
300
299
298
298
297
295
292
289

Monday 5

Waning Crescent 21%

01:35

16:28

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

Sun - Rise: 07:04, Set: 18:25, Transit: 12:44. Moon - Rise: 01:35, Set: 16:28. Civil Dark: 18:57 - 06:32. Nautical Dark: 19:35 - 05:54. Astro Dark: 20:14 - 05:16

Total Clouds (% Sky Obscured)

21
17
6
55
100
45
45
42
16
10
3
8
4
21
30
54
58
31
12
13
11
6
10
6

Low Clouds (% Sky Obscured)

19
12
0
0
0
0
0
0
0
0
0
0
0
0
0
7
16
13
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
43
36
3
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

2
2
4
55
100
40
30
14
13
9
2
6
2
19
29
46
40
11
12
13
11
5
8
4

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

Chance of Frost

Temperature (°C)

18
19
19
18
16
14
13
13
12
11
10
10
10
9
9
9
9
8
9
12
14
16
18
19

Feels Like (°C)

18
18
18
18
14
13
12
12
11
12
12
11
11
11
11
10
10
9
10
12
15
16
17
18

Dew Point (°C)

6
6
6
7
8
8
7
7
7
7
7
7
7
7
7
6
6
6
6
7
8
8
8
8

Relative Humidity (%)

45
42
43
49
61
66
66
70
73
77
80
80
82
82
82
84
85
87
82
72
66
60
53
49

Pressure (mb)

1025
1024
1024
1023
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023
1023
1023
1023
1023
1022
1021

Ozone (du)

287
287
287
285
283
281
279
277
276
275
275
275
275
274
272
271
271
272
272
272
272
272
272
272

Tuesday 6

Waning Crescent 12%

02:59

16:48

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

Sun - Rise: 07:06, Set: 18:23, Transit: 12:43. Moon - Rise: 02:59, Set: 16:48. Civil Dark: 18:55 - 06:33. Nautical Dark: 19:33 - 05:56. Astro Dark: 20:11 - 05:17

Total Clouds (% Sky Obscured)

7
30
25
29
62
49
29
21
36
0
0
0
0
0
0
0
0
1
6
19
29
51
59
70

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)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
6
14
29
16
44
55

High Clouds (% Sky Obscured)

7
30
25
29
62
45
27
18
30
0
0
0
0
0
0
0
0
1
6
19
29
51
59
68

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

Chance of Frost

Temperature (°C)

19
20
20
19
16
15
13
12
11
11
11
11
10
10
10
9
9
9
10
13
16
18
19
19

Feels Like (°C)

19
19
20
19
17
16
14
12
12
11
11
12
11
11
10
10
10
10
11
13
15
16
16
15

Dew Point (°C)

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

Relative Humidity (%)

46
43
43
48
58
63
66
67
70
71
72
75
74
77
78
81
81
82
78
64
50
40
35
33

Pressure (mb)

1021
1020
1020
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1019
1018
1018
1018
1017
1017
1016
1015

Ozone (du)

273
273
273
274
274
275
275
275
276
277
279
280
281
281
281
282
283
286
287
288
290
291
292
292

Wednesday 7

Waning Crescent 6%

04:20

17:04

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

Sun - Rise: 07:08, Set: 18:21, Transit: 12:43. Moon - Rise: 04:20, Set: 17:04. Civil Dark: 18:53 - 06:35. Nautical Dark: 19:31 - 05:57. Astro Dark: 20:09 - 05:19

Total Clouds (% Sky Obscured)

63
54
45
44
30
39
36
25
2
9
14
22
15
11
3
52
73
97
98
99
100
100
100
100

Low Clouds (% Sky Obscured)

2
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
6
26
32

Medium Clouds (% Sky Obscured)

56
48
45
7
4
1
1
11
2
7
9
14
10
5
0
11
23
34
42
87
90
94
96
100

High Clouds (% Sky Obscured)

63
54
40
36
26
39
36
24
1
0
0
0
0
4
2
52
65
88
92
96
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
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
3
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)

11
9
9
7
5
4
4
3
3
3
3
3
2
2
2
2
2
2
3
4
5
7
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
15
15
15
15
13
12
11
11
12
12
12
12
12
10
10
8
8
8
10
11
12
13
13

Dew Point (°C)

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

Relative Humidity (%)

37
41
43
46
54
58
59
61
62
64
65
67
70
73
73
77
77
77
74
67
64
60
57
65

Pressure (mb)

1015
1014
1014
1013
1013
1013
1012
1012
1012
1011
1011
1010
1010
1010
1009
1009
1008
1008
1008
1008
1008
1007
1006
1006

Ozone (du)

293
296
299
301
302
299
298
295
293
289
287
288
287
286
288
289
290
291
292
294
296
297
298
300

Thursday 8

Waning Crescent 2%

05:38

17:18

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
13 Bad

Sun - Rise: 07:09, Set: 18:18, Transit: 12:43. Moon - Rise: 05:38, Set: 17:18. Civil Dark: 18:51 - 06:37. Nautical Dark: 19:29 - 05:59. Astro Dark: 20:07 - 05:21

Total Clouds (% Sky Obscured)

100
100
100
100
100
84
100
78
82
97
98
98
98
98
97
98
99
100
99
97
96
96
96
95

Low Clouds (% Sky Obscured)

42
52
64
71
83
73
89
55
49
76
78
77
78
79
79
70
60
51
53
55
58
70
82
94

Medium Clouds (% Sky Obscured)

98
100
100
99
97
43
52
53
50
49
51
49
54
54
55
55
52
43
42
40
35
27
23
21

High Clouds (% Sky Obscured)

98
80
77
100
100
72
70
75
75
80
85
90
82
68
55
70
84
100
83
77
70
53
33
12

ISS Passover

Visibility (miles)

9
4
3
2
7
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
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

81
95
95
95
48
22
32
41
37
38
42
34
40
30
19
21
19
21
18
8
2
6
10
10

Precipitation Amount (mm)

0.5
0.8
0.5
0.7
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
9
7
7
7
6
7
8
8
8
8
9
9
8
8
7
8
8
9
10
11
11
12
13

Chance of Frost

Temperature (°C)

16
15
15
15
14
13
12
12
11
10
10
10
9
9
9
8
8
7
7
7
8
8
9
10

Feels Like (°C)

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

Dew Point (°C)

10
13
14
14
12
10
10
8
8
7
7
6
6
6
6
6
5
5
5
4
4
4
3
3

Relative Humidity (%)

68
83
95
93
87
83
87
77
83
84
84
80
80
81
82
84
84
85
85
82
79
77
68
60

Pressure (mb)

1006
1006
1006
1006
1007
1008
1010
1011
1012
1012
1013
1013
1013
1014
1014
1015
1015
1016
1016
1017
1017
1018
1017
1017

Ozone (du)

300
302
304
307
307
310
313
315
316
317
320
319
314
313
311
309
308
306
304
303
302
300
298
296

Friday 9

Waning Crescent 0%

06:55

17:31

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

Sun - Rise: 07:11, Set: 18:16, Transit: 12:42. Moon - Rise: 06:55, Set: 17:31. Civil Dark: 18:49 - 06:38. Nautical Dark: 19:27 - 06:00. Astro Dark: 20:05 - 05:22

Total Clouds (% Sky Obscured)

90
85
79
81
77
68
45
33
20
47
75
100
100
100
100
94
86
78
84
92
100
100
100
100

Low Clouds (% Sky Obscured)

82
70
58
52
48
46
39
32
20
45
55
55
60
40
25
25
25
25
31
37
57
79
85
87

Medium Clouds (% Sky Obscured)

21
19
16
21
22
19
23
26
20
25
20
29
35
40
41
40
44
43
42
37
28
49
74
100

High Clouds (% Sky Obscured)

28
45
61
74
75
68
45
33
20
47
75
100
100
100
100
84
71
60
67
73
64
73
85
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
8
8
5
3
0
3
6
9
6
4
1
3
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
Very Light Rain
None
None
None
None
Light Rain
Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

8
5
0
0
1
1
8
8
5
18
23
33
43
44
48
51
41
27
34
47
73
81
75
59

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

11
11
11
12
11
10
9
8
7
7
6
5
4
4
4
3
4
4
4
6
8
9
10
11

Feels Like (°C)

3
7
6
6
6
5
5
3
3
3
2
1
1
-2
-1
-1
-1
-1
-1
2
3
5
5
6

Dew Point (°C)

2
2
1
1
1
-0
-1
0
2
3
3
3
3
3
3
3
3
3
3
5
7
9
9
10

Relative Humidity (%)

55
52
50
49
49
49
50
58
66
75
81
88
94
94
96
96
96
94
93
94
94
96
95
93

Pressure (mb)

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

Ozone (du)

294
290
287
284
282
280
278
278
278
278
277
277
276
276
277
277
278
279
279
280
281
282
285
288

Saturday 10

New Moon 1%

08:12

17:45

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: 07:12, Set: 18:14, Transit: 12:42. Moon - Rise: 08:12, Set: 17:45. Civil Dark: 18:47 - 06:40. Nautical Dark: 19:25 - 06:02. Astro Dark: 20:03 - 05:24

Total Clouds (% Sky Obscured)

100
100
100
93
84
76
79
80
84
88
91
93
94
97
100
98
97
96

Low Clouds (% Sky Obscured)

89
91
92
78
65
58
49
42
34
46
59
71
70
73
74
72
69
66

Medium Clouds (% Sky Obscured)

88
77
50
45
39
29
39
40
45
45
41
41
61
80
100
87
74
65

High Clouds (% Sky Obscured)

80
61
37
35
30
33
45
54
59
68
76
87
88
85
85
74
60
70

ISS Passover

Visibility (miles)

8
8
8
8
8
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

Precipitation Type

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

Precipitation Probability (%)

53
41
29
24
24
22
20
18
16
22
27
30
47
56
57
47
31
15

Precipitation Amount (mm)

0.3
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.2
0
0
0

Wind Speed/Direction (mph)

12
12
12
12
9
7
4
4
4
4
3
4
4
4
5
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
90
87
86
87
90
93
93
95
96
96
96
98
96
94
93
93
91

Pressure (mb)

1014
1014
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1013
1014
1014

Ozone (du)

290
292
294
295
295
295
295
297
298
299
301
303
305
309
312
315
315
316

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

Generated: 04/10/26 14:33:04. Forecast: 04/10/26 to 10/10/26. Timezone: UTC+2.00