Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 23

Waxing Crescent 46%

11:43

03:10

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

Sun - Rise: 05:42, Set: 20:03, Transit: 12:54. Moon - Rise: 11:43, 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)

43
51
57
20
6
25
38
63
60
36
32
43
50
36
30
25
20
23
20
10
27
52
50
47

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
8
11
18
32
43
50
36
30
25
20
23
20
9
27
48
49
47

Medium Clouds (% Sky Obscured)

35
47
28
20
0
0
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
0
6
17
32
51
36
36
3
3
3
3
3
3
3
3
2
3
3
3
3
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)

12
11
12
11
11
12
10
8
5
3
3
3
2
2
2
2
2
1
1
1
1
3
5
7

Chance of Frost

Temperature (°C)

14
15
15
15
15
14
13
12
10
8
7
6
6
5
5
5
4
4
4
5
7
9
10
12

Feels Like (°C)

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

Dew Point (°C)

-4
-1
-1
-0
0
1
3
4
4
3
3
3
3
3
3
3
3
3
3
3
4
5
5
5

Relative Humidity (%)

30
33
33
35
37
41
49
58
66
70
74
78
81
83
86
89
89
91
93
89
82
75
68
61

Pressure (mb)

1019
1019
1019
1019
1018
1018
1018
1018
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1019
1018

Ozone (du)

371
373
372
367
360
358
357
358
356
355
354
355
356
357
360
362
362
361
361
360
359
359
358
357

Friday 24

First Quarter 57%

No Rise

03:32

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

Sun - Rise: 05:41, Set: 20:05, Transit: 12:54. Moon - Rise: No Rise, Set: 03:32. Civil Dark: 20:41 - 05:04. Nautical Dark: 21:26 - 04:19. Astro Dark: 22:19 - 03:25

Total Clouds (% Sky Obscured)

45
51
46
41
28
21
1
3
3
3
3
3
4
19
19
9
16
59
78
83
75
84
54
19

Low Clouds (% Sky Obscured)

45
46
46
41
28
21
0
0
0
0
0
0
0
13
0
0
11
59
78
82
67
48
27
17

Medium 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

High Clouds (% Sky Obscured)

4
27
4
4
1
2
1
3
3
3
3
3
3
11
19
9
10
5
5
11
39
72
32
2

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
3
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
4
28
25
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)

8
9
10
10
10
9
8
5
2
3
3
3
3
2
2
2
2
3
3
3
4
5
8
11

Chance of Frost

Temperature (°C)

14
14
15
16
16
15
14
12
9
7
5
4
4
3
3
2
2
2
1
3
5
7
10
12

Feels Like (°C)

11
11
12
12
12
12
12
11
9
6
5
4
4
3
3
1
1
1
0
1
3
5
6
8

Dew Point (°C)

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

Relative Humidity (%)

55
50
46
46
46
49
57
67
80
87
91
93
93
94
94
96
96
96
100
94
82
67
51
38

Pressure (mb)

1018
1017
1016
1016
1015
1015
1015
1016
1016
1017
1018
1018
1018
1018
1017
1017
1017
1017
1017
1016
1016
1016
1015
1014

Ozone (du)

356
357
358
359
360
360
360
361
361
361
362
363
363
364
367
372
374
378
380
380
387
390
393
396

Saturday 25

Waxing Gibbous 68%

13:05

03:48

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

Sun - Rise: 05:39, Set: 20:06, Transit: 12:53. Moon - Rise: 13:05, Set: 03:48. Civil Dark: 20:42 - 05:02. Nautical Dark: 21:28 - 04:16. Astro Dark: 22:22 - 03:22

Total Clouds (% Sky Obscured)

3
1
0
5
39
21
96
55
55
37
3
8
29
27
22
11
41
60
52
15
6
6
6
8

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
29
27
22
11
33
42
42
11
3
2
3
7

Medium Clouds (% Sky Obscured)

0
0
0
0
0
5
96
54
34
24
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

2
1
0
4
27
21
27
5
55
37
3
8
0
0
0
0
3
4
0
0
0
2
2
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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
1
4
1
3
3
2
0
1
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)

14
15
15
15
15
14
13
12
10
9
8
9
10
9
9
8
6
6
6
6
8
9
11
12

Chance of Frost

Temperature (°C)

14
15
16
17
17
16
15
14
12
10
9
9
8
7
6
5
3
3
3
4
5
6
7
8

Feels Like (°C)

10
11
12
12
12
12
10
10
8
7
7
7
5
5
4
3
2
1
-0
-0
2
3
3
4

Dew Point (°C)

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

Relative Humidity (%)

37
38
39
40
42
47
52
57
63
68
77
73
67
73
75
73
76
73
75
75
62
52
45
39

Pressure (mb)

1014
1013
1013
1012
1012
1011
1011
1011
1011
1012
1012
1012
1013
1013
1014
1015
1017
1018
1019
1020
1020
1021
1022
1022

Ozone (du)

401
410
406
391
389
392
387
388
391
392
391
387
386
384
387
393
401
406
401
395
394
391
389
388

Sunday 26

Waxing Gibbous 78%

14:24

04:02

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

Sun - Rise: 05:37, Set: 20:08, Transit: 12:53. Moon - Rise: 14:24, Set: 04:02. Civil Dark: 20:44 - 05:00. Nautical Dark: 21:30 - 04:14. Astro Dark: 22:24 - 03:19

Total Clouds (% Sky Obscured)

11
15
12
15
11
11
10
9
32
45
47
47
32
32
45
39
46
50
50
50
34
42
31
16

Low Clouds (% Sky Obscured)

11
15
12
11
6
4
3
0
1
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
2
2
6
6
8
9
4
4
2
2
14
14
5
2
0
0
0

High Clouds (% Sky Obscured)

0
0
0
1
1
1
2
3
19
35
40
36
18
21
34
26
28
25
20
15
9
15
15
11

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)

12
12
12
12
12
12
11
9
6
6
5
5
5
5
5
4
4
3
3
2
1
1
3
5

Chance of Frost

Temperature (°C)

9
10
10
10
10
10
9
8
6
5
4
3
2
1
1
0
-1
-1
0
2
3
5
7
8

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

37
35
34
33
35
36
39
44
52
58
61
59
59
59
59
60
60
60
58
52
45
41
38
36

Pressure (mb)

1022
1022
1022
1022
1022
1023
1023
1024
1025
1026
1027
1028
1028
1028
1028
1028
1029
1029
1028
1028
1028
1028
1028
1027

Ozone (du)

385
383
384
387
387
386
385
384
384
384
385
385
385
385
385
386
387
388
389
389
388
387
388
390

Monday 27

Waxing Gibbous 86%

15:40

04:14

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

Sun - Rise: 05:35, Set: 20:10, Transit: 12:53. Moon - Rise: 15:40, Set: 04:14. Civil Dark: 20:46 - 04:58. Nautical Dark: 21:32 - 04:12. Astro Dark: 22:27 - 03:16

Total Clouds (% Sky Obscured)

8
13
23
38
49
36
58
43
32
33
47
43
39
33
39
44
51
63
73
83
89
94
100
100

Low Clouds (% Sky Obscured)

0
1
1
1
2
3
14
5
11
17
24
17
9
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
1
1
17
32
48
55
59
63
71
85
99
98

High Clouds (% Sky Obscured)

7
7
23
38
49
36
31
14
28
33
47
43
39
33
26
14
2
32
64
83
89
94
100
99

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)

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

Chance of Frost

Temperature (°C)

9
10
11
12
12
12
11
10
7
6
4
3
3
2
2
1
1
1
2
4
5
6
8
9

Feels Like (°C)

7
9
9
11
11
11
9
6
4
4
3
2
1
-0
0
-0
-1
-0
-1
-1
-1
3
4
4

Dew Point (°C)

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

Relative Humidity (%)

34
33
32
32
32
33
35
46
51
54
55
56
56
57
57
57
58
58
55
51
50
47
44
42

Pressure (mb)

1027
1026
1025
1024
1024
1023
1023
1023
1024
1024
1024
1025
1025
1024
1024
1024
1023
1023
1023
1022
1022
1021
1021
1020

Ozone (du)

389
388
387
384
385
388
388
388
389
389
392
391
391
393
392
394
395
397
396
396
396
396
397
397

Tuesday 28

Waxing Gibbous 92%

16:53

04:26

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
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 05:33, Set: 20:11, Transit: 12:53. Moon - Rise: 16:53, Set: 04:26. Civil Dark: 20:48 - 04:56. Nautical Dark: 21:34 - 04:09. Astro Dark: 22:30 - 03:13

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
98
97
96
87
83
77
78
75
69
71
69
67
57

Low Clouds (% Sky Obscured)

0
1
15
27
39
39
38
42
47
55
57
56
51
47
52
58
67
57
51
44
45
50
50
45

Medium Clouds (% Sky Obscured)

96
94
93
94
96
97
99
100
99
98
97
95
92
90
79
63
50
45
43
41
40
45
49
53

High Clouds (% Sky Obscured)

99
98
99
100
100
100
100
100
100
99
99
73
46
19
14
5
0
0
0
0
4
9
5
15

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
8
7
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

None
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

Precipitation Probability (%)

0
0
1
2
2
14
20
26
26
24
17
19
16
3
7
7
3
11
16
19
32
41
49
55

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
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
5
5
8
7
7
7
7
7
4
4
4
3
3
3
3
3
3
3
3
2
4
5
5

Dew Point (°C)

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

Relative Humidity (%)

42
41
41
43
45
48
56
65
78
78
81
81
81
80
80
83
85
86
86
86
85
88
91
93

Pressure (mb)

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

Ozone (du)

398
398
399
401
403
405
410
414
418
421
424
427
428
429
430
426
422
418
416
415
414
414
414
415

Wednesday 29

Waxing Gibbous 97%

18:06

04:39

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: 05:31, Set: 20:13, Transit: 12:53. Moon - Rise: 18:06, Set: 04:39. Civil Dark: 20:50 - 04:54. Nautical Dark: 21:37 - 04:07. Astro Dark: 22:33 - 03:10

Total Clouds (% Sky Obscured)

47
35
39
39
40
36
33
37
36
35
41
38
30
33
35
42
48
53
51
48

Low Clouds (% Sky Obscured)

45
35
39
39
40
30
28
30
30
30
33
30
22
15
15
14
14
14
20
25

Medium Clouds (% Sky Obscured)

47
35
39
39
40
36
33
37
36
35
41
35
24
18
17
20
27
18
11
1

High Clouds (% Sky Obscured)

40
35
39
39
40
24
19
5
0
0
0
0
0
0
0
2
1
1
1
0

ISS Passover

Visibility (miles)

5
4
2
2
1
0
0
0
0
0
0
0
0
0
0
3
6
9
9
9

Fog (%)

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
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

Precipitation Probability (%)

62
66
65
64
63
57
50
41
48
52
45
41
38
35
29
22
10
12
11
7

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
94
94
94
96
96
96
96
98
98
96
96
96
96
98
94
93
91
88
84

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1019
1019
1020
1020
1020
1021
1021
1021
1022
1022

Ozone (du)

416
418
420
421
422
423
424
425
425
426
426
426
427
428
428
431
433
435
437
438

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

Generated: 23/04/26 12:01:59. Forecast: 23/04/26 to 29/04/26. Timezone: UTC+2.00