Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 15

Waning Crescent 5%

06:37

14:49

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

Sun - Rise: 07:11, Set: 17:20, Transit: 12:15. Moon - Rise: 06:37, Set: 14:49. Civil Dark: 17:53 - 06:38. Nautical Dark: 18:31 - 06:00. Astro Dark: 19:09 - 05:22

Total Clouds (% Sky Obscured)

100
100
91
62
79
87
74
69
35
31
30
27
24
15
2
2
0
0
10
1
11
25
100
100

Low Clouds (% Sky Obscured)

53
58
37
62
78
79
69
68
35
31
30
27
24
15
2
0
0
0
10
0
0
0
0
0

Medium Clouds (% Sky Obscured)

97
70
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
13
100
100

High Clouds (% Sky Obscured)

70
66
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
2
1
7
16
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 (%)

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

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-6
-6
-7
-6
-6
-7
-8
-7
-7
-5
-5
-3
-3
-2
-3
-3
-3
-4
-4
-5
-6
-6
-7
-8

Dew Point (°C)

-5
-5
-5
-5
-6
-6
-7
-9
-9
-10
-11
-11
-11
-11
-11
-10
-9
-9
-10
-10
-9
-9
-10
-10

Relative Humidity (%)

74
75
76
79
78
75
69
62
56
51
47
45
44
44
45
53
58
59
59
60
62
63
61
60

Pressure (mb)

1016
1016
1017
1017
1018
1019
1019
1020
1020
1019
1019
1018
1018
1017
1016
1016
1016
1015
1014
1013
1012
1011
1009
1008

Ozone (du)

440
441
429
415
410
399
391
383
385
386
385
384
381
375
374
373
374
374
373
370
369
367
367
362

Monday 16

Waning Crescent 1%

06:59

16:08

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
23 Bad
00 Bad
01 Bad

Sun - Rise: 07:09, Set: 17:22, Transit: 12:15. Moon - Rise: 06:59, Set: 16:08. Civil Dark: 17:55 - 06:36. Nautical Dark: 18:33 - 05:58. Astro Dark: 19:10 - 05:21

Total Clouds (% Sky Obscured)

100
100
100
99
98
100
100
100
100
96
100
85
79
54
87
90
91
81
86
100
100
100
87
87

Low Clouds (% Sky Obscured)

11
40
74
91
90
100
100
96
92
90
100
76
74
51
77
80
73
59
66
90
92
84
48
63

Medium Clouds (% Sky Obscured)

100
100
100
94
86
90
90
99
100
48
63
59
46
47
16
37
63
9
49
100
100
100
78
78

High Clouds (% Sky Obscured)

100
86
100
84
85
46
5
44
64
0
0
0
0
0
0
4
22
29
46
95
100
100
50
29

ISS Passover

Visibility (miles)

9
3
1
0
0
0
0
1
0
0
5
9
9
9
9
9
9
8
9
2
1
0
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
Snow
Snow
Snow
Snow
Snow
None
Snow
Snow
Snow
None
None
None
None
None
None
None
None
Light Rain
Snow
Snow
Snow
None
None

Precipitation Probability (%)

21
48
66
91
79
62
37
77
80
50
33
10
22
13
7
4
6
4
65
95
69
46
11
3

Precipitation Amount (mm)

0
0.1
0.2
0.6
0.5
0.3
0
0.4
0.4
0.1
0
0
0
0
0
0
0
0
0.4
0.9
0.3
0.2
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-10
-10
-7
-5
-5
-4
-4
-4
-3
-2
-1
-1
-1
-2
-1
-1
-1
-1
0
-0
-1
-0
-1
-2

Relative Humidity (%)

59
60
76
86
92
94
92
89
96
94
91
83
79
74
80
84
88
92
96
96
98
98
89
83

Pressure (mb)

1006
1005
1005
1004
1002
1001
1001
1000
1000
999
999
998
998
998
998
999
999
999
999
1000
1000
1000
1000
1000

Ozone (du)

359
356
360
362
370
378
385
389
394
395
384
387
390
391
390
394
393
398
414
419
427
425
429
418

Tuesday 17

New Moon 0%

07:17

17:27

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
23 Bad
00 Bad
01 Bad

Sun - Rise: 07:07, Set: 17:23, Transit: 12:15. Moon - Rise: 07:17, Set: 17:27. Civil Dark: 17:57 - 06:34. Nautical Dark: 18:34 - 05:56. Astro Dark: 19:12 - 05:19

Total Clouds (% Sky Obscured)

95
89
84
90
92
88
74
88
93
92
92
87
91
91
98
97
91
91
91
90
77
86
87
81

Low Clouds (% Sky Obscured)

56
70
65
77
85
40
50
59
79
62
81
73
80
87
70
92
85
79
79
77
68
76
53
59

Medium Clouds (% Sky Obscured)

94
62
60
63
78
77
62
64
39
32
75
50
65
89
91
78
75
74
76
30
22
9
28
41

High Clouds (% Sky Obscured)

80
64
82
85
80
75
74
75
4
4
4
4
1
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
8
5
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 (%)

2
21
29
30
22
7
14
5
15
9
11
37
37
24
31
28
36
23
15
10
10
12
7
7

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
84
88
86
91
88
88
84
80
76
69
63
63
72
76
83
80
80
79
76
74
78
81
80

Pressure (mb)

1000
1000
1000
1000
1000
1001
1002
1002
1003
1003
1003
1003
1004
1004
1005
1005
1006
1007
1008
1009
1009
1010
1010
1011

Ozone (du)

415
423
423
419
415
408
401
404
399
404
409
414
411
402
398
403
406
406
401
398
396
391
387
384

Wednesday 18

Waxing Crescent 1%

07:31

18:46

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

Sun - Rise: 07:05, Set: 17:25, Transit: 12:15. Moon - Rise: 07:31, Set: 18:46. Civil Dark: 17:58 - 06:32. Nautical Dark: 18:36 - 05:55. Astro Dark: 19:13 - 05:17

Total Clouds (% Sky Obscured)

73
63
65
20
24
31
40
54
49
74
79
61
37
28
15
19
5
11
43
47
49
53
66
68

Low Clouds (% Sky Obscured)

59
47
49
17
16
27
37
43
39
57
58
44
33
28
14
19
2
7
12
19
13
6
0
0

Medium Clouds (% Sky Obscured)

42
10
2
1
0
8
14
25
30
34
47
33
15
1
0
0
0
1
0
9
11
16
28
47

High Clouds (% Sky Obscured)

0
0
0
2
5
2
2
2
2
8
28
4
0
1
2
0
1
1
15
10
18
31
46
46

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
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

4
2
5
2
2
5
7
7
23
30
37
31
25
16
11
5
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

11
11
12
12
11
11
11
12
13
13
13
13
13
12
10
8
7
5
5
4
4
3
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
80
78
78
84
78
74
70
61
57
54
51
47
48
53
63
67
71
71
72
74
74
75
75

Pressure (mb)

1011
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1010
1010

Ozone (du)

383
379
378
379
380
379
377
376
378
380
381
377
375
374
372
369
364
364
364
368
368
368
369
371

Thursday 19

Waxing Crescent 5%

07:45

20:05

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
23 Bad
00 Bad
01 Bad

Sun - Rise: 07:04, Set: 17:27, Transit: 12:15. Moon - Rise: 07:45, Set: 20:05. Civil Dark: 18:00 - 06:31. Nautical Dark: 18:37 - 05:53. Astro Dark: 19:15 - 05:15

Total Clouds (% Sky Obscured)

75
81
88
95
100
100
98
93
100
100
100
96
92
89
91
93
94
90
87
84
75
70
64
57

Low Clouds (% Sky Obscured)

4
30
35
40
45
40
37
36
7
9
15
20
29
38
30
19
9
13
18
24
21
19
16
21

Medium Clouds (% Sky Obscured)

57
70
80
91
100
100
91
78
70
96
100
94
88
85
86
87
89
74
58
41
34
25
10
7

High Clouds (% Sky Obscured)

43
41
59
78
84
83
89
84
100
100
100
79
61
37
30
27
25
37
51
67
55
42
28
19

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
1
1
1
0
0
1
3
2
3
3
2
4
4
2
3
3
1
2
3
2
8

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-5
-5
-6
-5
-5
-5
-4
-5
-5
-5
-5
-5
-5
-5
-5
-4
-4
-4
-4
-4
-4
-5
-6
-6

Relative Humidity (%)

77
76
76
78
78
79
80
74
67
64
58
55
57
59
62
68
74
80
83
84
86
82
79
76

Pressure (mb)

1009
1009
1008
1008
1007
1007
1007
1007
1007
1007
1007
1007
1007
1008
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017

Ozone (du)

373
375
376
375
376
378
378
378
377
377
379
378
376
374
372
371
371
370
372
373
375
373
372
370

Friday 20

Waxing Crescent 11%

07:58

21:26

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

Sun - Rise: 07:02, Set: 17:28, Transit: 12:15. Moon - Rise: 07:58, Set: 21:26. Civil Dark: 18:01 - 06:29. Nautical Dark: 18:39 - 05:51. Astro Dark: 19:17 - 05:14

Total Clouds (% Sky Obscured)

42
31
50
71
92
94
97
100
82
62
41
28
14
3
3
3
3
2
2
1
13
24
35
43

Low Clouds (% Sky Obscured)

25
30
49
69
89
91
95
100
76
52
31
23
12
2
2
2
1
1
0
0
8
16
23
18

Medium Clouds (% Sky Obscured)

3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
4
17

High Clouds (% Sky Obscured)

10
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
4
12
19
31

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 (%)

8
2
8
9
6
9
7
6
5
4
0
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-6
-6
-7
-7
-7
-7
-8
-8
-8
-8
-8
-7
-3
-2
-2
-2
-1
-1
-4
-3
-3
-3
-3
-3

Dew Point (°C)

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

Relative Humidity (%)

76
78
78
75
71
67
64
62
58
56
53
51
53
54
54
60
65
71
72
74
74
74
72
71

Pressure (mb)

1018
1019
1020
1022
1023
1024
1025
1027
1028
1028
1029
1029
1030
1030
1031
1031
1032
1033
1034
1034
1035
1035
1035
1036

Ozone (du)

371
371
372
372
372
372
369
366
363
361
360
359
356
353
350
349
347
345
346
346
346
347
348
350

Saturday 21

Waxing Crescent 19%

08:13

22:49

Sun - Rise: 07:00, Set: 17:30, Transit: 12:15. Moon - Rise: 08:13, Set: 22:49. Civil Dark: 18:03 - 06:27. Nautical Dark: 18:41 - 05:49. Astro Dark: 19:18 - 05:12

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 15/02/26 02:29:04. Forecast: 15/02/26 to 21/02/26. Timezone: UTC+1.00