Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 17

New Moon 0%

05:52

20:23

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

Sun - Rise: 05:54, Set: 19:54, Transit: 12:55. Moon - Rise: 05:52, Set: 20:23. Civil Dark: 20:29 - 05:19. Nautical Dark: 21:12 - 04:36. Astro Dark: 22:00 - 03:47

Total Clouds (% Sky Obscured)

47
41
35
47
72
40
43
44
41
30
42
29
25
19
6
14
31
33
35
33
41
61
44
37

Low Clouds (% Sky Obscured)

11
1
28
46
72
39
39
39
40
30
32
8
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

27
4
35
6
39
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
5
27
29
25
19
6
14
31
33
35
33
41
61
44
37

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
16
29
24
8
2
0
0
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)

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

Chance of Frost

Temperature (°C)

8
10
13
15
16
17
17
17
17
16
15
14
11
10
9
8
7
6
6
5
5
4
4
5

Feels Like (°C)

7
9
14
16
16
15
15
14
13
13
13
11
8
7
7
7
5
4
3
2
2
2
1
3

Dew Point (°C)

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

Relative Humidity (%)

71
65
60
52
45
39
41
43
47
51
53
60
70
76
75
73
69
67
65
63
65
64
66
65

Pressure (mb)

1023
1022
1022
1022
1021
1021
1021
1021
1020
1021
1021
1021
1022
1023
1023
1024
1024
1024
1024
1024
1024
1024
1024
1024

Ozone (du)

374
376
375
374
372
373
372
372
371
372
374
376
376
377
375
373
371
370
370
369
366
364
362
360

Saturday 18

Waxing Crescent 2%

06:18

21:55

08 OK
09 Bad
10 OK
11 OK
12 OK
13 Bad
14 Bad
15 Bad
16 Bad
17 OK
18 OK
19 OK
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: 05:52, Set: 19:55, Transit: 12:55. Moon - Rise: 06:18, Set: 21:55. Civil Dark: 20:30 - 05:17. Nautical Dark: 21:14 - 04:33. Astro Dark: 22:03 - 03:44

Total Clouds (% Sky Obscured)

40
50
47
23
36
52
73
83
74
47
29
36
61
90
94
96
95
89
94
99
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
23
22
24
9
27
6
1
1
1
1
1
1
2
2
13
21
32

Medium Clouds (% Sky Obscured)

9
29
40
16
16
16
39
48
40
31
19
6
32
65
61
70
69
47
87
97
81
100
100
96

High Clouds (% Sky Obscured)

40
50
30
13
32
46
48
44
46
18
23
5
36
87
86
89
86
79
69
87
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
1
2
4

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

Chance of Frost

Temperature (°C)

7
11
13
14
15
16
17
17
17
17
16
15
12
11
10
9
9
9
9
9
9
9
9
9

Feels Like (°C)

6
9
11
13
14
15
15
16
15
15
15
14
11
10
8
7
7
7
7
7
7
7
7
8

Dew Point (°C)

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

Relative Humidity (%)

56
49
44
39
35
34
33
33
34
36
43
56
62
67
67
67
67
68
67
68
68
68
65
68

Pressure (mb)

1024
1024
1023
1023
1022
1021
1021
1020
1020
1019
1019
1019
1020
1020
1020
1020
1019
1019
1019
1019
1018
1018
1017
1017

Ozone (du)

359
358
358
358
358
356
354
354
355
355
356
356
356
357
356
357
358
361
362
362
362
361
363
365

Sunday 19

Waxing Crescent 6%

06:55

23:26

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
04 OK
05 OK
06 OK
07 Bad

Sun - Rise: 05:50, Set: 19:57, Transit: 12:55. Moon - Rise: 06:55, Set: 23:26. Civil Dark: 20:32 - 05:15. Nautical Dark: 21:16 - 04:31. Astro Dark: 22:06 - 03:41

Total Clouds (% Sky Obscured)

99
100
100
100
100
100
100
100
100
100
100
94
94
73
64
66
40
32
30
16
10
19
31
76

Low Clouds (% Sky Obscured)

44
44
36
58
74
75
87
66
91
67
64
77
85
54
50
53
29
30
28
16
10
19
31
76

Medium Clouds (% Sky Obscured)

97
100
100
100
100
100
100
100
100
100
62
44
42
30
38
39
40
17
10
4
0
0
0
0

High Clouds (% Sky Obscured)

78
72
80
66
100
100
100
100
100
100
100
76
80
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
8
7
9
3
9
9
5
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

8
18
21
51
85
94
95
95
95
82
63
22
19
3
15
7
3
1
0
1
1
1
2
3

Precipitation Amount (mm)

0
0
0
0.2
0.8
0.5
0.8
1
0.5
0.6
0.5
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

11
12
12
13
12
11
12
11
11
12
12
11
10
10
9
8
7
6
5
4
4
3
3
4

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
57
58
63
71
88
81
91
93
84
84
84
88
88
90
84
88
91
91
91
91
91
91
88

Pressure (mb)

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

Ozone (du)

368
370
371
372
372
372
374
376
378
380
381
385
389
397
401
402
404
406
408
409
410
411
413
415

Monday 20

Waxing Crescent 14%

07:47

00:48

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
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:48, Set: 19:58, Transit: 12:54. Moon - Rise: 07:47, Set: 00:48. Civil Dark: 20:34 - 05:13. Nautical Dark: 21:18 - 04:29. Astro Dark: 22:08 - 03:38

Total Clouds (% Sky Obscured)

88
81
70
79
90
100
100
100
100
100
100
100
100
74
50
49
43
37
52
52
53
56
54
51

Low Clouds (% Sky Obscured)

87
79
70
70
71
71
73
76
80
77
75
74
76
66
50
49
43
37
44
39
40
48
54
51

Medium Clouds (% Sky Obscured)

0
0
0
7
13
20
20
22
57
80
99
99
78
67
50
49
43
37
52
52
53
56
54
46

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
19
2
18
55
41
50
49
27
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
6
9
8
9
9
9
7
4
2
2
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

5
12
17
17
25
27
35
35
43
50
52
35
30
27
14
16
16
16
22
22
16
22
21
13

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
72
73
69
70
74
82
88
85
87
91
94
96
91
93
94
93
89
89
88
89
89
89
88

Pressure (mb)

1016
1016
1016
1016
1015
1015
1015
1015
1015
1015
1016
1017
1017
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

414
415
415
415
417
418
417
415
413
410
407
405
406
408
408
407
407
408
410
411
413
417
417
415

Tuesday 21

Waxing Crescent 23%

No Rise

01:53

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 OK
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:46, Set: 20:00, Transit: 12:54. Moon - Rise: No Rise, Set: 01:53. Civil Dark: 20:35 - 05:11. Nautical Dark: 21:20 - 04:26. Astro Dark: 22:11 - 03:35

Total Clouds (% Sky Obscured)

50
48
43
74
77
75
75
62
51
50
46
36
45
53
57
61
63
65
74
83
91
94
97
100

Low Clouds (% Sky Obscured)

50
48
43
65
69
69
69
61
51
50
46
36
36
38
42
36
30
25
28
30
31
31
34
37

Medium Clouds (% Sky Obscured)

46
44
43
41
26
14
16
19
23
19
14
10
11
22
32
37
39
40
53
66
79
86
92
98

High Clouds (% Sky Obscured)

0
0
0
11
24
32
19
10
0
1
2
0
45
45
20
14
20
26
41
46
54
69
82
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 (%)

21
27
30
42
39
38
38
35
23
28
27
21
3
3
2
6
6
2
15
17
11
26
41
48

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
4
5
5
4
5
5
5
5
5
5
5
4
3
4
3
3
2
2
1
1
0
0
0

Dew Point (°C)

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

Relative Humidity (%)

76
67
61
54
46
43
41
40
40
41
45
54
63
66
69
70
72
72
71
72
72
72
69
65

Pressure (mb)

1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1020
1017
1017
1018
1017
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

414
411
409
407
405
405
405
405
405
405
405
405
407
408
410
411
411
411
411
412
413
415
414
414

Wednesday 22

Waxing Crescent 34%

08:57

02:38

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 OK
04 OK
05 OK
06 Good
07 Good

Sun - Rise: 05:44, Set: 20:02, Transit: 12:54. Moon - Rise: 08:57, Set: 02:38. Civil Dark: 20:37 - 05:09. Nautical Dark: 21:22 - 04:24. Astro Dark: 22:13 - 03:32

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
87
74
62
50
46
39
27
16
5

Low Clouds (% Sky Obscured)

39
43
48
59
70
80
78
76
76
64
51
36
34
32
30
23
17
10
8
5
2
2
2
2

Medium Clouds (% Sky Obscured)

98
98
100
100
100
100
100
100
100
100
100
100
96
92
88
87
74
62
50
46
39
27
16
0

High Clouds (% Sky Obscured)

100
100
100
98
100
96
96
95
81
80
79
78
81
81
84
87
74
62
50
46
39
27
16
0

ISS Passover

Visibility (miles)

9
7
5
3
5
7
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

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

Precipitation Probability (%)

63
67
68
58
54
51
56
59
62
57
52
50
41
28
8
8
7
3
3
2
1
1
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

60
58
56
54
55
55
55
56
57
58
61
65
69
71
72
75
76
76
78
79
79
80
74
69

Pressure (mb)

1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019
1020
1020
1020
1020
1020
1021
1021

Ozone (du)

413
415
417
419
421
422
424
425
426
427
427
427
427
429
431
432
432
432
432
433
434
435
431
427

Thursday 23

Waxing Crescent 46%

10:18

03:10

08 Good
09 Good
10 Good
11 Good
12 Good
13 Good
14 Good
15 Good
16 Good
17 Good
18 Good
19 Good
20 Good
21 Good
22 Good
23 Good
00 Good
01 Good

Sun - Rise: 05:42, Set: 20:03, Transit: 12:54. Moon - Rise: 10:18, Set: 03:10. Civil Dark: 20:39 - 05:07. Nautical Dark: 21:24 - 04:21. Astro Dark: 22:16 - 03:29

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

2
2
2
2
2
2
1
1
1
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
0

High Clouds (% Sky Obscured)

0
0
0
2
4
5
4
2
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

Fog (%)

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

Precipitation Probability (%)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

1
7
7
8
9
9
10
12
12
11
12
12
12
6
7
7
7
6

Dew Point (°C)

1
1
1
0
0
0
1
1
0
0
1
1
2
2
1
1
1
0

Relative Humidity (%)

63
56
50
45
42
40
40
40
39
40
46
53
61
62
64
65
65
65

Pressure (mb)

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

Ozone (du)

423
419
414
410
403
396
389
386
383
380
378
377
375
374
372
371
370
368

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

Generated: 17/04/26 08:53:06. Forecast: 17/04/26 to 23/04/26. Timezone: UTC+2.00