Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 23

Waxing Crescent 40%

09:16

01:38

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
09 Bad
10 Bad

Sun - Rise: 06:48, Set: 17:27, Transit: 12:09. Moon - Rise: 09:16, Set: 01:38. Civil Dark: 18:00 - 06:16. Nautical Dark: 18:38 - 05:38. Astro Dark: 19:16 - 05:00

Total Clouds (% Sky Obscured)

90
85
81
65
70
82
90
78
99
96
58
98
86
94
100
100
100
91
90
89
89
91
96
97

Low Clouds (% Sky Obscured)

60
55
55
36
41
58
54
78
98
71
58
86
72
67
70
83
84
82
85
88
76
85
91
94

Medium Clouds (% Sky Obscured)

0
0
0
39
62
82
90
78
94
67
4
89
46
75
100
81
98
49
57
0
36
9
56
51

High Clouds (% Sky Obscured)

65
65
3
3
3
9
0
0
0
2
0
2
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
0
0

Precipitation Type

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

Precipitation Probability (%)

42
4
1
27
32
37
59
80
72
53
56
95
79
84
73
66
60
45
33
28
15
18
32
36

Precipitation Amount (mm)

0
0
0
0
0
0
0.2
0.5
0.4
0
0
0.7
0.4
0.6
0.3
0.3
0.2
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
88
82
78
78
77
85
89
93
93
86
88
94
91
96
98
96
96
96
94
96
93
91
94

Pressure (mb)

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

Ozone (du)

370
370
371
370
372
372
374
367
368
369
374
378
382
383
382
381
384
391
395
398
401
411
420
416

Tuesday 24

First Quarter 52%

10:01

03:00

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

Sun - Rise: 06:46, Set: 17:29, Transit: 12:09. Moon - Rise: 10:01, Set: 03:00. Civil Dark: 18:02 - 06:14. Nautical Dark: 18:40 - 05:36. Astro Dark: 19:17 - 04:58

Total Clouds (% Sky Obscured)

88
98
78
62
55
36
41
61
92
87
62
48
79
69
62
37
35
31
36
22
48
33
44
38

Low Clouds (% Sky Obscured)

64
75
63
58
46
18
19
16
31
40
30
25
25
25
19
1
10
18
23
22
22
14
7
8

Medium Clouds (% Sky Obscured)

58
87
35
0
0
0
0
0
0
37
19
11
40
31
25
37
25
11
23
2
0
19
6
20

High Clouds (% Sky Obscured)

0
0
0
0
0
0
4
21
51
60
8
6
3
3
13
4
3
3
3
0
32
4
23
6

ISS Passover

Visibility (miles)

4
2
2
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
1
0
0
0
0
0
0
51
38
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 (%)

31
10
9
18
7
4
2
2
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
4
5
5
6
4
2
3
3
3
2
2
2
2
2
2
1
1
2
1
2
2
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
94
90
82
72
78
83
86
89
89
88
88
86
81
80
83
88
86
87
89
87
83
76
72

Pressure (mb)

1019
1019
1019
1020
1020
1021
1021
1022
1023
1024
1024
1024
1024
1024
1024
1024
1025
1025
1025
1025
1026
1026
1026
1026

Ozone (du)

406
394
391
389
386
384
377
373
372
373
373
371
369
365
364
363
364
362
358
354
353
354
351
349

Wednesday 25

Waxing Gibbous 64%

11:02

04:09

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

Sun - Rise: 06:44, Set: 17:31, Transit: 12:09. Moon - Rise: 11:02, Set: 04:09. Civil Dark: 18:03 - 06:12. Nautical Dark: 18:41 - 05:34. Astro Dark: 19:19 - 04:56

Total Clouds (% Sky Obscured)

28
35
23
27
10
11
11
21
11
3
2
13
9
4
47
53
53
21
21
7
7
17
54
40

Low Clouds (% Sky Obscured)

10
20
7
20
6
2
3
7
4
1
1
13
9
1
1
1
2
2
2
2
2
2
1
4

Medium Clouds (% Sky Obscured)

3
13
5
0
0
0
0
0
0
0
0
0
0
0
0
0
53
18
0
7
5
2
0
0

High Clouds (% Sky Obscured)

14
6
12
2
3
11
7
6
0
2
0
0
0
1
15
20
25
7
10
1
2
10
30
14

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
67
67
67
67
72
80
85
88
91
93
93
93
92
92
91
88
86
86
86
86
80
69
58

Pressure (mb)

1026
1025
1025
1025
1025
1025
1026
1026
1027
1027
1027
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1027

Ozone (du)

348
348
352
357
360
360
360
360
362
364
366
368
366
367
367
367
366
366
366
366
365
366
367
369

Thursday 26

Waxing Gibbous 75%

11:02

05:00

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 OK
01 OK
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:42, Set: 17:32, Transit: 12:08. Moon - Rise: 11:02, Set: 05:00. Civil Dark: 18:05 - 06:10. Nautical Dark: 18:43 - 05:32. Astro Dark: 19:21 - 04:54

Total Clouds (% Sky Obscured)

68
71
74
75
67
73
67
68
60
58
52
49
53
43
35
48
61
42
57
64
82
75
79
72

Low Clouds (% Sky Obscured)

9
13
13
15
17
13
9
4
6
8
9
18
25
33
35
40
43
42
41
40
43
43
45
40

Medium Clouds (% Sky Obscured)

1
8
62
75
60
62
27
19
18
19
21
20
11
3
0
0
0
0
0
0
32
63
79
72

High Clouds (% Sky Obscured)

32
32
33
31
33
53
67
68
60
58
52
49
53
41
28
30
28
15
21
22
47
70
79
72

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

49
44
43
43
46
52
62
71
77
82
85
88
88
86
88
88
88
88
88
88
85
80
71
66

Pressure (mb)

1027
1026
1026
1025
1025
1024
1025
1025
1025
1026
1026
1026
1026
1025
1026
1025
1025
1025
1025
1025
1025
1025
1024
1024

Ozone (du)

371
369
371
370
368
367
366
369
370
377
387
394
393
397
403
398
391
385
380
376
373
372
370
367

Friday 27

Waxing Gibbous 85%

12:19

05:36

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

Sun - Rise: 06:40, Set: 17:34, Transit: 12:08. Moon - Rise: 12:19, Set: 05:36. Civil Dark: 18:07 - 06:08. Nautical Dark: 18:45 - 05:30. Astro Dark: 19:22 - 04:52

Total Clouds (% Sky Obscured)

63
59
58
57
52
54
48
48
49
47
50
51
50
50
49
49
44
40
36
36
33
30
31
31

Low Clouds (% Sky Obscured)

32
24
16
7
0
0
0
0
17
34
50
51
50
50
49
49
44
40
36
36
33
30
30
31

Medium Clouds (% Sky Obscured)

63
59
58
30
0
0
0
0
13
28
47
46
45
45
42
39
36
26
27
29
17
14
11
11

High Clouds (% Sky Obscured)

63
59
58
57
52
54
48
48
49
47
50
41
26
15
10
6
2
1
1
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
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
Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
1
5
10
15
17
31
58
38
28
20
12
8
6
5
4
4

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
6
6
7
7
7
6
4
4
3
2
3
2
2
2
1
1
0
0
0
0
0
1
2

Dew Point (°C)

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

Relative Humidity (%)

64
62
61
60
62
68
75
80
83
82
80
79
79
76
77
76
76
77
77
77
77
70
63
59

Pressure (mb)

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

Ozone (du)

367
365
362
360
358
355
352
351
349
346
343
340
338
338
339
338
337
336
336
336
336
337
338
338

Saturday 28

Waxing Gibbous 92%

13:44

06:01

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

Sun - Rise: 06:38, Set: 17:36, Transit: 12:08. Moon - Rise: 13:44, Set: 06:01. Civil Dark: 18:08 - 06:06. Nautical Dark: 18:46 - 05:28. Astro Dark: 19:24 - 04:50

Total Clouds (% Sky Obscured)

31
36
38
37
35
38
37
37
41
46
51
48
49
45
50
40
40
34
33
36
34
35
35
38

Low Clouds (% Sky Obscured)

31
36
38
37
35
38
37
37
34
22
14
9
4
0
0
0
0
7
13
20
23
24
27
31

Medium Clouds (% Sky Obscured)

11
12
14
14
12
12
17
17
16
36
45
48
49
45
50
40
40
34
33
36
34
35
25
13

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
19
37
51
48
49
45
50
40
40
34
33
0
0
1
1
2

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 (%)

2
0
1
1
0
1
0
0
0
0
0
0
0
0
1
2
1
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
3
3
7
7
6
6
6
7
2
2
2
2
2
2
1
1
2
2
1
1
1
2
2

Dew Point (°C)

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

Relative Humidity (%)

56
54
53
55
56
58
64
68
76
76
77
79
77
77
77
76
76
76
76
77
77
70
66
60

Pressure (mb)

1027
1026
1026
1026
1026
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1026
1026
1025
1025
1025
1025
1024
1024
1024

Ozone (du)

339
340
341
342
342
343
344
345
346
347
348
349
350
350
351
353
355
357
358
360
362
362
363
364

Sunday 1

Waxing Gibbous 97%

15:10

06:19

11 OK
12 OK
13 OK
14 OK
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: 06:36, Set: 17:37, Transit: 12:08. Moon - Rise: 15:10, Set: 06:19. Civil Dark: 18:10 - 06:03. Nautical Dark: 18:48 - 05:26. Astro Dark: 19:26 - 04:48

Total Clouds (% Sky Obscured)

40
43
42
43
44
57
72
81
86
91
85
84
87
85
90
94
100
98
96
96

Low Clouds (% Sky Obscured)

33
38
37
38
43
50
51
50
51
53
52
53
57
60
65
69
74
76
69
63

Medium Clouds (% Sky Obscured)

6
0
0
0
0
4
11
17
46
57
64
79
84
85
90
92
90
75
60
46

High Clouds (% Sky Obscured)

3
3
3
3
3
1
1
0
33
67
85
84
87
85
67
36
5
5
5
5

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
3
6
7
4
4
4
6
8
36
53
64

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4

Wind Speed/Direction (mph)

11
12
13
12
11
10
8
6
4
4
3
3
2
2
2
2
2
2
2
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
3
4
7
6
6
6
6
6
2
3
4
3
3
3
1
1
1
1
0

Dew Point (°C)

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

Relative Humidity (%)

57
55
52
55
57
59
64
70
76
76
77
77
77
79
79
79
79
79
80
80

Pressure (mb)

1023
1022
1022
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1023

Ozone (du)

366
368
370
371
372
373
373
373
372
374
375
376
377
379
380
380
381
381
381
381

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

Generated: 23/02/26 11:53:00. Forecast: 23/02/26 to 01/03/26. Timezone: UTC+1.00