Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 9

Third Quarter 44%

02:24

09:38

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
08 Bad

Sun - Rise: 07:15, Set: 17:03, Transit: 12:10. Moon - Rise: 02:24, Set: 09:38. Civil Dark: 17:37 - 06:41. Nautical Dark: 18:16 - 06:02. Astro Dark: 18:53 - 05:25

Total Clouds (% Sky Obscured)

86
87
89
92
85
87
90
92
94
100
99
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

84
87
89
91
78
73
80
84
88
100
98
100
100
100
100
100
100
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

0
0
0
0
6
32
24
13
13
19
16
30
30
6
6
19
29
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

30
17
32
42
31
16
8
3
3
3
4
5
4
5
3
3
3
3
3
4
0
0
7
8

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
4
0
0
0
0
0
0
0
0
0
0
0
0

Fog (%)

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
35
35
35
35
36

Precipitation Type

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

Precipitation Probability (%)

0
0
0
2
0
0
0
0
1
4
7
21
33
48
52
42
45
42
39
35
30
30
26
17

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.2
0.2
0.2
0.2
0.2
0.1
0.1
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-1
0
1
1
1
1
1
1
1
0
0
0
0
0
0
0
1
0
1
1
1
1
1
1

Feels Like (°C)

-4
-3
-3
-3
-2
-2
-2
-2
-2
-2
-2
-3
-3
-2
-2
-3
-2
-2
-2
-2
-2
-2
-2
-2

Dew Point (°C)

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

Relative Humidity (%)

89
86
84
83
81
81
81
86
86
88
88
94
98
98
100
100
100
100
100
100
100
98
98
98

Pressure (mb)

1013
1013
1013
1013
1012
1012
1012
1012
1012
1012
1011
1011
1011
1011
1010
1010
1009
1009
1009
1008
1008
1007
1007
1007

Ozone (du)

413
416
419
421
422
418
413
415
419
427
432
430
429
432
437
442
444
448
448
449
446
437
433
428

Tuesday 10

Waning Crescent 34%

03:32

10:02

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
08 Bad

Sun - Rise: 07:13, Set: 17:05, Transit: 12:10. Moon - Rise: 03:32, Set: 10:02. Civil Dark: 17:39 - 06:39. Nautical Dark: 18:17 - 06:01. Astro Dark: 18:55 - 05:23

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
99
89
98
97
98
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
97
84
85
93
95
99
100
100
100
100
98
100

Medium Clouds (% Sky Obscured)

0
0
0
0
2
2
2
5
1
9
4
28
10
12
30
50
48
36
23
47
72
76
90
95

High Clouds (% Sky Obscured)

14
9
25
49
59
43
6
14
23
31
3
6
52
27
8
7
2
11
26
57
83
94
95
84

ISS Passover

Visibility (miles)

0
0
0
1
7
8
7
8
9
9
9
9
9
9
9
9
8
7
5
7
6
5
5
8

Fog (%)

87
85
36
3
2
2
3
3
2
1
1
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 (%)

14
15
13
7
7
12
0
4
2
0
2
0
2
0
0
0
0
0
0
0
0
0
2
5

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
7
8
9
9
8
8
8
8
7
8
8
8
8
8
8
7
8
8
9
9
9
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
100
98
96
93
94
91
91
89
88
88
86
88
89
92
92
94
94
94
92
94
94
94
92

Pressure (mb)

1006
1006
1006
1005
1005
1004
1004
1003
1003
1003
1003
1003
1002
1002
1002
1001
1000
1000
999
998
997
997
996
996

Ozone (du)

417
414
412
409
414
418
416
406
389
379
385
390
391
393
391
390
396
398
403
390
393
389
376
370

Wednesday 11

Waning Crescent 25%

04:34

10:35

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
08 Bad

Sun - Rise: 07:11, Set: 17:06, Transit: 12:10. Moon - Rise: 04:34, Set: 10:35. Civil Dark: 17:40 - 06:38. Nautical Dark: 18:19 - 05:59. Astro Dark: 18:57 - 05:21

Total Clouds (% Sky Obscured)

100
100
98
100
100
100
98
99
98
100
100
100
100
100
100
100
100
100
99
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
97
88
94
85
84
89
89
95
100
100
100
95
100
100
100
100
100
99
98
95
94
96
65

Medium Clouds (% Sky Obscured)

89
95
80
86
68
81
75
85
83
82
100
100
100
96
64
57
82
39
21
17
19
15
96
92

High Clouds (% Sky Obscured)

67
64
56
81
86
100
92
94
74
100
100
100
100
77
73
64
52
19
29
45
87
100
75
41

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
35
86
86
86
86
82
82
82
82
82
82
82
82

Precipitation Type

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

Precipitation Probability (%)

2
1
8
16
33
37
49
60
75
88
87
83
77
64
42
30
22
26
31
32
28
20
19
21

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
93
89
86
86
89
94
96
98
98
98
100
98
98
98
98
98
96
98
96
96
96
96
96

Pressure (mb)

996
995
995
994
993
993
992
992
992
992
991
991
991
991
990
990
990
989
988
988
988
988
988
987

Ozone (du)

366
365
362
362
362
364
360
361
360
364
366
376
380
382
384
389
387
387
370
358
359
360
358
353

Thursday 12

Waning Crescent 17%

05:25

11:20

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
08 Bad

Sun - Rise: 07:10, Set: 17:08, Transit: 12:10. Moon - Rise: 05:25, Set: 11:20. Civil Dark: 17:42 - 06:36. Nautical Dark: 18:20 - 05:58. Astro Dark: 18:58 - 05:20

Total Clouds (% Sky Obscured)

100
95
91
87
91
96
100
100
100
100
100
99
99
98
98
98
99
99
100
100
99
99
99
100

Low Clouds (% Sky Obscured)

82
95
73
85
75
80
78
81
74
100
95
90
85
88
90
93
95
98
100
97
94
91
91
91

Medium Clouds (% Sky Obscured)

72
30
49
31
81
93
100
100
100
100
95
53
58
73
65
71
82
88
99
97
93
92
90
88

High Clouds (% Sky Obscured)

15
10
15
25
53
80
100
100
100
100
94
64
70
60
65
51
53
62
72
50
30
1
30
73

ISS Passover

Visibility (miles)

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

Fog (%)

82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82

Precipitation Type

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

Precipitation Probability (%)

49
21
5
1
4
6
10
11
8
17
20
40
36
50
42
56
55
58
93
82
51
52
55
51

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0.3
0.3
0.2
1
0.8
0
0
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

987
987
986
986
986
985
985
985
985
986
986
986
986
986
986
986
986
986
986
986
987
987
988
988

Ozone (du)

348
352
354
355
356
362
371
377
385
397
402
410
420
426
427
428
430
429
430
438
437
433
430
416

Friday 13

Waning Crescent 16%

06:04

12:17

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
08 Bad

Sun - Rise: 07:08, Set: 17:10, Transit: 12:10. Moon - Rise: 06:04, Set: 12:17. Civil Dark: 17:44 - 06:34. Nautical Dark: 18:22 - 05:56. Astro Dark: 19:00 - 05:18

Total Clouds (% Sky Obscured)

100
100
100
100
97
93
89
69
82
100
97
98
100
96
93
89
91
92
93
88
82
76
82
90

Low Clouds (% Sky Obscured)

91
83
78
71
73
76
76
69
80
77
12
21
32
22
12
2
4
7
11
22
32
41
50
54

Medium Clouds (% Sky Obscured)

100
70
38
10
64
11
13
17
20
23
41
35
31
25
24
22
17
13
8
27
45
61
69
80

High Clouds (% Sky Obscured)

97
99
100
100
77
42
4
5
20
44
45
72
99
96
89
86
87
91
93
87
71
30
43
68

ISS Passover

Visibility (miles)

0
1
0
2
0
4
6
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82

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 (%)

38
43
50
32
9
18
4
7
14
3
0
0
0
0
0
0
0
0
0
1
2
2
8
11

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
96
96
98
96
94
91
91
93
91
91
91
91
91
92
91
91
91
91
91
93
93
94
94

Pressure (mb)

989
989
990
990
989
990
990
990
990
991
991
993
993
993
993
993
993
993
993
993
993
994
994
994

Ozone (du)

412
410
409
408
413
418
417
420
420
417
415
418
420
423
422
422
422
425
428
431
434
436
439
439

Saturday 14

Waning Crescent 10%

06:33

13:26

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
08 Bad

Sun - Rise: 07:06, Set: 17:12, Transit: 12:10. Moon - Rise: 06:33, Set: 13:26. Civil Dark: 17:45 - 06:32. Nautical Dark: 18:23 - 05:54. Astro Dark: 19:01 - 05:16

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
91
79

Low Clouds (% Sky Obscured)

58
72
86
100
100
100
100
98
97
95
84
72
60
60
60
60
60
60
55
50
45
45
42
44

Medium Clouds (% Sky Obscured)

98
69
40
15
39
62
86
91
95
100
100
100
100
100
100
100
100
100
100
100
100
100
68
40

High Clouds (% Sky Obscured)

100
71
39
13
42
71
100
99
98
97
98
99
100
87
74
61
62
63
65
45
25
5
5
5

ISS Passover

Visibility (miles)

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

Fog (%)

82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82

Precipitation Type

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

Precipitation Probability (%)

11
11
7
3
8
10
12
18
23
27
28
34
45
57
69
86
82
73
68
68
66
61
63
61

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.4
0.6
0.6
0.4
0.3
0.3
0.3
0.2
0.2
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
94
96
94
96
96
96
96
98
98
98
98
98
98
98
98
98
98
98
98
98
98
98
96

Pressure (mb)

995
995
996
996
996
997
999
1000
1001
1002
1003
1004
1005
1006
1006
1007
1008
1008
1008
1009
1009
1010
1010
1011

Ozone (du)

439
438
437
435
434
432
431
429
431
432
433
433
432
432
430
428
427
426
426
425
423
420
417
417

Sunday 15

Waning Crescent 5%

06:55

14:42

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

Sun - Rise: 07:04, Set: 17:13, Transit: 12:10. Moon - Rise: 06:55, Set: 14:42. Civil Dark: 17:47 - 06:31. Nautical Dark: 18:25 - 05:52. Astro Dark: 19:03 - 05:15

Total Clouds (% Sky Obscured)

54
69
81
95
92
90
87
75
66
58
70
80
89
77
69
68

Low Clouds (% Sky Obscured)

41
55
73
91
86
82
76
62
52
39
51
61
71
59
48
44

Medium Clouds (% Sky Obscured)

15
23
25
41
46
50
48
38
32
23
25
28
30
35
40
34

High Clouds (% Sky Obscured)

5
5
5
5
5
5
5
5
5
5
3
2
0
0
0
0

ISS Passover

Visibility (miles)

2
3
5
6
7
8
9
9
9
9
9
9
9
9
7
5

Fog (%)

82
82
82
82
82
82
82
82
82
82
82
82
82
82
82
82

Precipitation Type

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

Precipitation Probability (%)

55
44
35
23
27
31
26
32
32
14
20
21
18
18
20
16

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
89
83
77
71
71
71
71
75
79
84
84
86
84
84
84

Pressure (mb)

1011
1011
1012
1012
1012
1012
1012
1013
1013
1014
1015
1016
1016
1017
1017
1018

Ozone (du)

416
415
412
409
406
406
407
407
413
418
424
420
417
413
409
406

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

Generated: 09/02/26 09:22:04. Forecast: 09/02/26 to 15/02/26. Timezone: UTC+1.00