Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 2

Waning Gibbous 99%

17:36

07:57

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:28, Set: 16:51, Transit: 12:09. Moon - Rise: 17:36, Set: 07:57. Civil Dark: 17:25 - 06:52. Nautical Dark: 18:05 - 06:13. Astro Dark: 18:43 - 05:35

Total Clouds (% Sky Obscured)

96
92
98
96
96
99
94
97
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98

Low Clouds (% Sky Obscured)

87
92
97
95
95
99
85
95
95
100
100
100
100
100
100
100
100
100
100
100
100
100
100
97

Medium Clouds (% Sky Obscured)

5
0
0
5
7
16
17
0
0
0
3
0
3
3
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

1
5
7
11
16
53
35
62
65
61
36
11
1
0
3
4
5
2
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

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

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
12
15
3
2
1
0
1
1
6
2
7
18
14
12
17
7
9
8
19
8
10
6

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-10
-11
-11
-10
-9
-7
-7
-7
-7
-8
-9
-9
-9
-10
-9
-10
-9
-9
-9
-10
-9
-10
-10
-10

Dew Point (°C)

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

Relative Humidity (%)

85
87
83
83
82
82
79
81
82
87
89
87
85
84
87
87
89
89
90
89
89
89
90
92

Pressure (mb)

1013
1014
1013
1013
1013
1013
1012
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

430
419
410
404
399
393
389
390
388
387
386
384
377
378
377
375
380
379
380
383
384
383
373
370

Tuesday 3

Waning Gibbous 95%

18:59

08:14

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:27, Set: 16:52, Transit: 12:09. Moon - Rise: 18:59, Set: 08:14. Civil Dark: 17:27 - 06:50. Nautical Dark: 18:06 - 06:11. Astro Dark: 18:44 - 05:33

Total Clouds (% Sky Obscured)

90
84
79
73
71
86
98
88
97
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

87
81
75
71
71
83
91
86
96
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
16
45
45
45
40
81
92
83
97
82
93
69
53
42
40
20
25
15

High Clouds (% Sky Obscured)

0
0
0
0
0
65
70
65
65
60
60
60
2
0
0
26
38
0
0
0
0
2
0
0

ISS Passover

Visibility (miles)

5
9
9
9
9
9
9
9
9
7
6
3
1
0
0
0
0
0
0
1
0
0
0
0

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
Snow
None
None
None
None
None
None
None

Precipitation Probability (%)

3
3
1
1
3
2
3
1
2
5
17
10
26
25
27
29
32
28
19
17
11
14
13
13

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
89
87
85
82
79
81
81
84
84
84
87
89
92
92
92
92
96
94
94
94
96
96
96

Pressure (mb)

1013
1013
1012
1012
1012
1011
1010
1009
1010
1010
1010
1010
1010
1010
1010
1010
1010
1009
1009
1009
1009
1009
1009
1009

Ozone (du)

368
362
359
358
357
356
357
356
356
358
359
361
364
372
380
387
393
395
395
398
401
399
400
400

Wednesday 4

Waning Gibbous 89%

20:17

08:28

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:25, Set: 16:54, Transit: 12:10. Moon - Rise: 20:17, Set: 08:28. Civil Dark: 17:29 - 06:49. Nautical Dark: 18:08 - 06:10. Astro Dark: 18:46 - 05:32

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
94
98
100
100
100
100
100
100
100
98
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
94
97
98
100
100
100
100
66
60
73
77
95
96
97
97
97
97

Medium Clouds (% Sky Obscured)

0
0
25
11
65
25
23
22
4
6
0
90
90
96
97
100
88
67
100
100
100
100
100
100

High Clouds (% Sky Obscured)

0
0
38
46
42
5
64
45
63
100
100
100
83
100
100
87
82
100
100
100
100
98
73
94

ISS Passover

Visibility (miles)

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

Fog (%)

2
6
3
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
Snow
Snow
Snow
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai

Precipitation Probability (%)

10
0
3
0
1
0
0
0
0
0
0
0
0
1
4
13
35
45
48
59
72
63
62
63

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
92
91
91
89
86
88
92
92
92
94
92
92
96
94
94
92
94
94
92
92
91

Pressure (mb)

1009
1009
1009
1009
1009
1008
1008
1007
1007
1007
1007
1007
1007
1006
1006
1005
1005
1005
1004
1004
1003
1003
1002
1002

Ozone (du)

402
400
400
401
401
402
403
402
398
396
396
396
397
395
395
393
392
390
388
387
389
386
385
384

Thursday 5

Waning Gibbous 81%

21:32

08:40

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:23, Set: 16:56, Transit: 12:10. Moon - Rise: 21:32, Set: 08:40. Civil Dark: 17:30 - 06:47. Nautical Dark: 18:09 - 06:08. Astro Dark: 18:47 - 05:31

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

97
95
97
95
94
92
93
94
95
94
93
92
95
97
100
100
100
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

72
22
78
99
85
98
99
99
100
97
97
98
89
89
90
78
76
65
70
72
74
63
51
36

High Clouds (% Sky Obscured)

95
95
100
85
73
61
65
65
67
66
65
70
55
14
1
1
0
1
7
4
4
1
1
1

ISS Passover

Visibility (miles)

9
9
9
9
9
7
4
2
1
1
1
1
3
4
7
7
4
5
5
5
4
5
5
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

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

Precipitation Probability (%)

58
56
56
53
53
51
56
70
73
68
60
52
41
35
25
27
17
22
16
23
24
16
25
28

Precipitation Amount (mm)

0.2
0.2
0.3
0.2
0.2
0.2
0.2
0.5
0.5
0.4
0.3
0.2
0.1
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
89
91
89
91
92
92
94
96
94
94
94
92
92
92
91
92
94
92
92
94
94
94
94

Pressure (mb)

1002
1001
1001
1001
1001
1000
1000
999
999
999
999
999
999
999
999
999
998
998
998
998
998
997
997
997

Ozone (du)

385
386
389
397
404
406
407
414
417
422
427
432
438
442
443
444
444
444
443
444
444
444
443
446

Friday 6

Waning Gibbous 72%

22:46

08:52

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:22, Set: 16:58, Transit: 12:10. Moon - Rise: 22:46, Set: 08:52. Civil Dark: 17:32 - 06:46. Nautical Dark: 18:11 - 06:07. Astro Dark: 18:49 - 05:29

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
99
98
97
96
95
89
84
85
87
88
89
91
91
91
92
92
92
93

Medium Clouds (% Sky Obscured)

28
21
10
6
14
23
33
50
47
55
61
67
92
85
80
69
52
28
28
29
30
28
29
36

High Clouds (% Sky Obscured)

1
3
5
6
5
14
21
19
9
22
41
64
90
83
77
83
60
43
42
58
71
59
51
57

ISS Passover

Visibility (miles)

5
2
2
4
5
7
4
0
0
0
0
0
2
4
7
9
7
5
3
3
3
3
3
4

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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

32
35
29
13
21
16
31
31
36
33
21
28
24
22
17
18
17
14
17
17
16
21
22
19

Precipitation Amount (mm)

0
0.1
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
2
2
2
2
2
2
3
3
3
3
2
3
3
3
3
3
3
2
2
2
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
96
96
96
94
94
96
98
100
96
98
98
96
96
94
92
92
92
92
92
94
94
94
94

Pressure (mb)

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

Ozone (du)

449
452
448
441
436
433
431
430
432
433
432
431
427
424
421
418
414
411
407
407
407
407
405
402

Saturday 7

Waning Gibbous 63%

23:59

09:05

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:20, Set: 16:59, Transit: 12:10. Moon - Rise: 23:59, Set: 09:05. Civil Dark: 17:34 - 06:44. Nautical Dark: 18:12 - 06:06. Astro Dark: 18:50 - 05:28

Total Clouds (% Sky Obscured)

99
99
98
93
89
81
85
90
94
95
97
98
97
98
98
99
99
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

93
93
93
90
88
81
85
89
92
92
91
92
93
94
95
96
98
99
99
99
99
99
99
99

Medium Clouds (% Sky Obscured)

43
64
63
45
23
2
8
14
20
17
15
12
24
37
49
43
37
27
51
74
100
79
60
41

High Clouds (% Sky Obscured)

60
59
53
35
19
0
7
13
19
29
40
51
40
31
23
13
21
29
22
14
7
8
8
9

ISS Passover

Visibility (miles)

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

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 (%)

16
12
4
8
8
3
7
7
3
8
10
11
13
15
16
16
16
13
13
11
9
12
13
12

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
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
94
91
89
89
91
89
91
93
93
96
96
96
98
98
100
98
100
98
98
98
98
98
98

Pressure (mb)

1006
1006
1007
1007
1007
1008
1008
1008
1008
1008
1008
1009
1009
1009
1009
1010
1010
1010
1010
1010
1010
1010
1009
1009

Ozone (du)

399
397
395
393
398
403
408
408
408
408
408
409
409
407
405
403
401
399
397
398
399
400
401
403

Sunday 8

Waning Gibbous 53%

01:12

09:20

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

Sun - Rise: 07:18, Set: 17:01, Transit: 12:10. Moon - Rise: 01:12, Set: 09:20. Civil Dark: 17:35 - 06:43. Nautical Dark: 18:14 - 06:04. Astro Dark: 18:52 - 05:26

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

98
96
95
97
99
100
100
99
99
96
94
92
95
97
99
99
99
100

Medium Clouds (% Sky Obscured)

49
59
69
67
64
69
68
68
63
62
63
62
58
54
50
51
51
44

High Clouds (% Sky Obscured)

10
11
12
9
7
5
5
5
5
5
5
5
5
5
0
0
0
0

ISS Passover

Visibility (miles)

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

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 (%)

11
8
2
14
18
20
20
19
16
17
16
16
18
19
19
20
20
20

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)

1
1
1
1
1
1
2
2
1
2
2
2
2
2
2
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
98
98
98
96
98
96
94
96
96
98
98
100
98
100
98
100

Pressure (mb)

1009
1009
1009
1009
1009
1009
1009
1009
1008
1008
1008
1008
1008
1008
1008
1008
1007
1007

Ozone (du)

404
405
405
405
401
398
394
391
388
385
386
386
387
391
395
398
399
400

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

Generated: 02/02/26 07:04:04. Forecast: 02/02/26 to 08/02/26. Timezone: UTC+1.00