Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 3

Waning Gibbous 85%

23:07

09:19

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

Sun - Rise: 04:51, Set: 21:10, Transit: 13:00. Moon - Rise: 23:07, Set: 09:19. Civil Dark: 21:55 - 04:06. Nautical Dark: 23:00 - 03:01. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

37
27
29
18
3
3
1
17
25
24
20
25
78
71
57
73
83
69
59
67
78
82
69
79

Low Clouds (% Sky Obscured)

0
10
0
0
0
0
0
17
25
24
20
9
40
48
23
27
23
17
23
29
36
63
59
66

Medium Clouds (% Sky Obscured)

3
11
0
0
0
0
0
0
0
0
0
0
0
13
27
40
51
52
39
40
46
53
50
67

High Clouds (% Sky Obscured)

0
0
3
2
2
2
0
0
0
0
1
10
32
23
17
53
73
44
4
11
20
65
55
50

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
6
24

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
11
7
5
4
3
2
2
2
2
2
2
3
7
9
10
11
12
12
12
11
11
11
10

Chance of Frost

Temperature (°C)

18
17
15
13
13
12
11
10
10
9
9
10
12
14
15
17
18
19
19
20
21
21
19
18

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
66
76
82
84
86
87
88
90
93
93
93
83
71
60
49
46
43
42
40
40
43
55
67

Pressure (mb)

1021
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1021
1021
1021
1020
1021
1021

Ozone (du)

368
367
368
367
368
370
372
372
364
359
359
359
358
357
357
356
356
357
357
354
354
355
357
358

Saturday 4

Waning Gibbous 77%

23:21

10:33

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
14 Bad
15 Bad
16 Bad
17 Bad
18 OK

Sun - Rise: 04:52, Set: 21:09, Transit: 13:00. Moon - Rise: 23:21, Set: 10:33. Civil Dark: 21:54 - 04:07. Nautical Dark: 22:59 - 03:02. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

88
82
88
87
96
97
98
96
93
96
99
96
98
99
98
100
100
40
73
65
82
93
61
39

Low Clouds (% Sky Obscured)

70
67
53
55
58
86
93
83
82
85
85
88
85
78
80
88
94
40
64
65
82
56
42
38

Medium Clouds (% Sky Obscured)

82
81
88
69
90
95
95
85
79
88
96
68
77
65
72
88
53
40
60
54
59
64
25
0

High Clouds (% Sky Obscured)

50
60
16
0
2
15
45
42
19
5
1
1
48
68
75
50
54
18
0
4
24
61
51
10

ISS Passover

Visibility (miles)

9
9
5
9
7
3
1
1
1
3
6
6
7
7
9
4
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 (%)

26
42
50
38
13
40
37
19
22
27
19
9
7
23
48
37
38
42
35
39
42
39
11
3

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)

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

Chance of Frost

Temperature (°C)

17
16
15
14
14
13
13
13
12
12
12
13
13
14
15
16
16
17
18
19
19
19
19
19

Feels Like (°C)

16
16
15
14
13
13
13
12
12
11
11
12
13
14
14
13
13
14
15
15
16
15
15
16

Dew Point (°C)

14
15
15
14
13
13
13
12
12
12
12
12
13
14
14
14
15
13
10
9
8
8
8
9

Relative Humidity (%)

82
90
96
98
98
100
98
98
98
100
98
98
95
95
89
92
93
81
59
53
48
48
50
53

Pressure (mb)

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

Ozone (du)

357
355
354
358
355
355
355
355
358
360
361
363
362
363
363
360
360
359
357
356
357
359
359
361

Sunday 5

Waning Gibbous 68%

23:34

11:48

19 OK
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 OK
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

Sun - Rise: 04:52, Set: 21:09, Transit: 13:00. Moon - Rise: 23:34, Set: 11:48. Civil Dark: 21:53 - 04:08. Nautical Dark: 22:58 - 03:04. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

19
100
100
100
96
43
38
35
51
66
100
100
100
100
100
100
97
98
97
99
99
99
99
100

Low Clouds (% Sky Obscured)

19
33
41
44
38
43
38
30
30
35
31
65
72
80
84
51
95
88
72
77
77
74
74
85

Medium Clouds (% Sky Obscured)

0
25
25
17
34
21
14
12
1
9
37
39
47
100
98
95
86
91
68
59
54
66
66
94

High Clouds (% Sky Obscured)

7
100
100
100
55
15
20
13
38
57
100
100
100
88
86
61
46
39
32
33
38
30
33
35

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
Light Rain

Precipitation Probability (%)

2
1
2
3
0
0
1
0
0
0
0
4
37
52
49
15
5
1
7
18
26
34
53
71

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
0.3
0.5

Wind Speed/Direction (mph)

8
6
4
3
3
2
2
2
2
1
1
1
2
3
5
7
8
11
10
11
11
11
10
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
17
14
14
13
12
14
13
12
11
10
10
12
12
12
11
12
13
14
15
15
15
15
15

Dew Point (°C)

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

Relative Humidity (%)

59
68
77
82
86
90
92
93
95
93
95
93
84
73
59
52
47
45
45
46
50
52
60
61

Pressure (mb)

1015
1016
1016
1016
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1017
1017
1017
1016
1016
1016
1016
1016

Ozone (du)

361
361
361
360
360
361
362
361
360
357
355
354
355
356
355
354
354
353
351
350
349
351
352
350

Monday 6

Waning Gibbous 57%

23:46

13:04

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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 04:53, Set: 21:08, Transit: 13:01. Moon - Rise: 23:46, Set: 13:04. Civil Dark: 21:53 - 04:09. Nautical Dark: 22:57 - 03:05. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
99
98
96
90
97
99
98
98
97
98
99
100
99
97
96
97
99
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

89
87
83
81
75
82
81
80
81
81
76
73
65
64
59
58
59
63
68
73
78
82
82
79

Medium Clouds (% Sky Obscured)

100
97
90
81
56
93
92
93
92
86
84
77
70
78
80
92
94
96
98
98
99
100
87
74

High Clouds (% Sky Obscured)

47
55
49
53
20
14
15
28
22
15
40
70
100
71
45
27
58
79
100
100
100
100
100
100

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

85
75
63
39
36
48
44
78
36
19
43
42
25
24
21
16
27
49
80
94
95
95
95
95

Precipitation Amount (mm)

0.7
0.5
0.3
0
0
0
0
0.7
0
0
0
0
0
0
0
0
0
0
0.5
0.6
0.7
1.1
1.1
1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
14
14
14
14
14
13
13
13
13
13
13
14
14
14
15
15
17
17
17
16
14
13
12

Dew Point (°C)

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

Relative Humidity (%)

66
74
80
86
90
95
93
96
96
96
95
96
95
95
93
90
86
77
83
95
92
95
95
96

Pressure (mb)

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

Ozone (du)

350
350
350
353
352
351
351
353
350
351
353
354
353
353
353
351
349
349
347
346
350
347
350
355

Tuesday 7

Third Quarter 46%

00:00

14:25

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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 04:54, Set: 21:08, Transit: 13:01. Moon - Rise: 00:00, Set: 14:25. Civil Dark: 21:52 - 04:10. Nautical Dark: 22:56 - 03:07. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
99
99
94
87
80
100
100
100
100
100
100
100
100
100
90
83

Low Clouds (% Sky Obscured)

79
81
83
85
83
83
82
64
41
25
41
54
71
72
59
47
47
53
60
59
53
51
49
46

Medium Clouds (% Sky Obscured)

42
63
67
80
71
66
60
55
89
83
67
51
28
73
77
80
72
65
59
67
72
79
68
61

High Clouds (% Sky Obscured)

90
80
75
60
69
70
70
79
88
96
86
64
57
95
97
100
98
97
95
87
82
78
71
64

ISS Passover

Visibility (miles)

9
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
6
7
8
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

91
95
95
95
95
95
95
95
94
74
63
45
15
23
23
21
25
30
37
47
51
56
48
40

Precipitation Amount (mm)

0.9
1.1
1.5
2.1
2
1.7
1.3
0.9
0.6
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0.2
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
15
15
15
15
15
14
14
14
13
12
12
12
12
15
15
16
15
15
15
15
16
16
16

Feels Like (°C)

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

Dew Point (°C)

15
15
15
14
14
14
14
13
13
11
11
10
10
10
12
12
12
12
13
13
14
14
15
14

Relative Humidity (%)

95
95
96
96
96
96
95
95
95
90
92
90
88
90
86
80
77
82
86
92
92
90
92
87

Pressure (mb)

1008
1008
1008
1007
1007
1007
1007
1007
1007
1007
1008
1008
1009
1009
1013
1013
1013
1013
1013
1013
1013
1012
1012
1012

Ozone (du)

369
372
374
374
363
359
354
351
346
342
338
337
335
334
335
335
336
336
335
334
337
339
341
344

Wednesday 8

Waning Crescent 34%

00:17

15:50

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 OK
11 OK
12 OK
13 OK
14 OK
15 OK
16 OK
17 OK
18 OK

Sun - Rise: 04:55, Set: 21:07, Transit: 13:01. Moon - Rise: 00:17, Set: 15:50. Civil Dark: 21:51 - 04:11. Nautical Dark: 22:55 - 03:08. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

74
72
68
68
68
67
67
67
52
47
41
31
31
28
30
32
32
32
31
33
37
39
30
22

Low Clouds (% Sky Obscured)

45
53
62
60
36
33
29
33
36
45
41
31
31
28
30
32
32
32
31
29
32
35
27
19

Medium Clouds (% Sky Obscured)

50
54
57
50
45
45
45
40
35
30
23
13
6
5
2
0
0
0
0
7
13
20
13
7

High Clouds (% Sky Obscured)

61
36
19
4
3
3
2
2
2
2
2
2
3
4
4
5
3
2
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 (%)

29
34
32
20
38
34
19
33
36
19
21
16
12
16
19
16
9
8
2
4
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
13
14
15
15
14
14
13
10
10
11
11
10
9
15
15
15
15
16
16
19
18
18
18

Dew Point (°C)

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

Relative Humidity (%)

85
80
83
84
87
87
88
88
90
90
93
87
81
78
66
56
47
45
42
41
42
42
42
48

Pressure (mb)

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

Ozone (du)

347
349
349
349
349
351
353
355
356
357
357
355
354
352
351
350
348
348
348
348
347
346
346
345

Thursday 9

Waning Crescent 24%

00:39

17:19

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

Sun - Rise: 04:56, Set: 21:07, Transit: 13:01. Moon - Rise: 00:39, Set: 17:19. Civil Dark: 21:50 - 04:13. Nautical Dark: 22:54 - 03:10. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

14
16
21
29
34
50
41
31
29
26
20
12
3
21
38
51
54
57
63

Low Clouds (% Sky Obscured)

11
7
4
2
5
8
10
13
16
19
13
7
0
8
14
17
32
48
63

Medium Clouds (% Sky Obscured)

4
6
8
13
8
5
0
5
11
18
12
5
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
7
16
29
34
50
41
31
25
3
4
4
3
18
31
42
24
13
3

ISS Passover

Visibility (miles)

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

Precipitation Type

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
5
9
10

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
16
15
13
11
11
10
10
9
9
8
11
13
15
16
18
20
20
21

Feels Like (°C)

18
18
14
15
15
15
14
13
10
10
11
11
11
11
17
17
17
18
18

Dew Point (°C)

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

Relative Humidity (%)

57
65
68
71
76
76
77
80
81
84
85
78
74
68
64
59
55
50
46

Pressure (mb)

1016
1016
1017
1017
1018
1018
1018
1018
1018
1018
1019
1019
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

343
342
342
343
343
343
344
344
344
343
343
342
341
340
340
340
340
341
341

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

Generated: 03/07/26 19:52:18. Forecast: 03/07/26 to 09/07/26. Timezone: UTC+2.00