Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 10

Third Quarter 40%

04:51

12:52

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 OK
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:50, Set: 20:29, Transit: 13:40. Moon - Rise: 04:51, Set: 12:52. Civil Dark: 21:04 - 06:14. Nautical Dark: 21:47 - 05:30. Astro Dark: 22:36 - 04:42

Total Clouds (% Sky Obscured)

86
90
92
94
100
94
83
50
72
73
65
54
68
41
100
100
100
100
100
100
96
100
75
100

Low Clouds (% Sky Obscured)

52
53
28
42
35
24
0
0
0
5
1
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

58
73
10
44
78
67
83
50
60
53
58
54
68
26
87
100
100
87
94
95
82
81
69
100

High Clouds (% Sky Obscured)

86
20
77
94
100
81
57
17
44
44
38
8
15
23
100
100
100
100
100
100
87
100
33
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 (%)

4
4
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2

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
8
8
7
6
5
4
5
6
7
7
8
8
8
9
10
11
11
12
14
14
15
16

Chance of Frost

Temperature (°C)

11
12
12
11
12
11
9
8
7
7
6
6
6
6
6
6
6
6
7
8
9
11
13
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

52
50
49
48
50
56
64
65
69
74
75
78
78
76
75
74
70
70
71
69
67
63
60
57

Pressure (mb)

1020
1020
1019
1019
1019
1019
1018
1019
1018
1017
1017
1017
1016
1015
1015
1014
1013
1012
1012
1011
1010
1010
1009
1008

Ozone (du)

379
375
371
368
365
362
361
358
356
356
356
356
355
356
354
354
352
352
353
353
353
354
355
356

Saturday 11

Waning Crescent 30%

05:10

No Set

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 OK
05 OK
06 OK
07 OK
08 OK
09 Good
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:47, Set: 20:30, Transit: 13:40. Moon - Rise: 05:10, Set: No Set. Civil Dark: 21:06 - 06:12. Nautical Dark: 21:50 - 05:28. Astro Dark: 22:38 - 04:38

Total Clouds (% Sky Obscured)

99
100
100
100
100
100
100
100
100
99
100
99
100
100
30
27
26
20
17
13
60
100
100
100

Low Clouds (% Sky Obscured)

0
54
88
87
95
100
68
23
2
1
0
8
0
0
0
0
0
0
0
0
0
27
28
40

Medium Clouds (% Sky Obscured)

86
100
100
74
54
100
100
100
58
37
0
0
2
7
30
10
6
0
0
0
0
25
60
75

High Clouds (% Sky Obscured)

96
100
100
100
100
100
100
100
100
99
100
99
100
100
17
14
12
17
15
13
60
100
100
100

ISS Passover

Visibility (miles)

9
9
9
3
4
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
Very Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

19
57
81
95
95
48
7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0.2
0.4
1.4
1.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

16
15
12
12
17
15
12
8
9
10
9
8
8
8
9
10
10
10
10
11
12
13
12
12

Chance of Frost

Temperature (°C)

16
17
17
15
11
9
8
8
8
7
7
6
5
5
5
5
4
4
5
7
9
10
12
13

Feels Like (°C)

11
14
15
11
6
4
5
5
5
3
3
3
2
1
1
1
0
0
1
3
4
6
7
8

Dew Point (°C)

8
9
12
14
10
7
6
5
5
4
3
3
3
2
2
2
2
1
2
3
4
4
4
4

Relative Humidity (%)

57
58
68
93
91
87
82
82
78
77
79
82
83
82
79
79
82
80
82
76
70
65
58
55

Pressure (mb)

1007
1006
1006
1006
1008
1009
1010
1012
1012
1013
1013
1013
1014
1014
1014
1014
1014
1015
1015
1015
1015
1016
1015
1015

Ozone (du)

356
355
354
354
353
354
355
353
353
356
359
361
363
366
369
370
374
377
379
380
380
381
381
381

Sunday 12

Waning Crescent 21%

05:24

14:12

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
12 Bad
13 Bad

Sun - Rise: 06:45, Set: 20:32, Transit: 13:39. Moon - Rise: 05:24, Set: 14:12. Civil Dark: 21:08 - 06:09. Nautical Dark: 21:52 - 05:25. Astro Dark: 22:41 - 04:35

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
96
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

38
44
30
25
0
1
15
0
0
0
13
7
1
1
1
1
1
0
8
13
20
13
7
0

Medium Clouds (% Sky Obscured)

75
75
75
76
77
86
100
100
100
61
67
83
100
96
100
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
79
100
100
100
100
93
88
81
81
87
90

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
3
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
5
25

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)

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

Chance of Frost

Temperature (°C)

13
14
14
14
13
13
12
10
9
9
7
7
7
6
6
6
6
6
6
7
9
10
11
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

50
48
47
47
53
61
65
67
69
72
73
72
70
69
70
70
71
70
72
70
65
61
57
53

Pressure (mb)

1015
1015
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013

Ozone (du)

380
379
379
379
379
381
381
383
384
385
387
388
389
388
388
391
393
394
396
396
396
395
395
397

Monday 13

Waning Crescent 12%

05:37

15:32

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
12 Bad
13 Bad

Sun - Rise: 06:43, Set: 20:34, Transit: 13:39. Moon - Rise: 05:37, Set: 15:32. Civil Dark: 21:09 - 06:07. Nautical Dark: 21:54 - 05:22. Astro Dark: 22:44 - 04:32

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
94
86
86
70
56
42
61
79
77
72
75
78

Low Clouds (% Sky Obscured)

26
47
68
63
56
46
52
59
67
65
64
62
58
54
50
44
38
31
49
64
77
70
64
62

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
86
56
60
46
33
19
20
21
23
43
59
36
41
51
60

High Clouds (% Sky Obscured)

95
98
100
100
100
100
76
40
10
6
7
7
38
69
86
67
33
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

8
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
Very Light Rain

Precipitation Probability (%)

41
39
39
49
46
46
37
35
23
19
17
15
13
11
6
7
7
5
13
16
18
36
48
65

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
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
13
12
12
11
10
10
9
8
8
7
7
7
7
6
6
6
6
6
8
9
11
12
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

52
52
55
62
70
76
82
85
85
85
88
88
88
88
88
88
88
90
86
78
72
65
58
51

Pressure (mb)

1013
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1015
1015
1016
1016
1016

Ozone (du)

402
409
420
429
432
433
436
441
447
452
454
454
456
460
465
473
477
475
471
468
465
460
450
440

Tuesday 14

Waning Crescent 6%

05:48

16:53

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

Sun - Rise: 06:41, Set: 20:35, Transit: 13:39. Moon - Rise: 05:48, Set: 16:53. Civil Dark: 21:11 - 06:05. Nautical Dark: 21:56 - 05:20. Astro Dark: 22:46 - 04:29

Total Clouds (% Sky Obscured)

72
72
75
65
51
39
27
21
15
10
5
1
4
7
10
39
68
98
100
100
100
98
95
93

Low Clouds (% Sky Obscured)

61
60
61
52
44
36
22
11
0
1
1
1
4
7
9
7
4
0
19
38
57
48
39
30

Medium Clouds (% Sky Obscured)

45
31
16
12
6
0
4
7
10
6
3
0
0
0
0
5
10
10
5
5
10
10
28
32

High 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

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

Very Light Rain
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 (%)

59
57
56
35
19
5
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
7
18
21

Precipitation Amount (mm)

0.2
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)

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

Chance of Frost

Temperature (°C)

13
14
14
14
13
12
11
9
8
7
6
6
6
5
5
5
5
5
6
8
10
11
12
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

48
46
46
47
51
61
65
75
78
78
78
78
79
80
82
83
85
85
86
79
72
66
60
55

Pressure (mb)

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

Ozone (du)

431
424
416
414
412
410
407
400
394
388
383
381
380
380
379
379
378
376
375
372
370
367
367
366

Wednesday 15

Waning Crescent 2%

06:00

18:16

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
12 Bad
13 Bad

Sun - Rise: 06:39, Set: 20:37, Transit: 13:39. Moon - Rise: 06:00, Set: 18:16. Civil Dark: 21:13 - 06:02. Nautical Dark: 21:58 - 05:17. Astro Dark: 22:49 - 04:26

Total Clouds (% Sky Obscured)

93
93
92
92
92
93
93
93
93
89
85
82
75
68
62
72
84
93
95
97
100
90
84
77

Low Clouds (% Sky Obscured)

43
55
62
71
75
80
80
79
77
64
53
43
42
42
44
48
49
49
64
78
93
75
57
37

Medium Clouds (% Sky Obscured)

47
53
60
61
62
63
68
75
82
79
78
76
75
68
62
64
56
48
41
38
39
30
25
17

High Clouds (% Sky Obscured)

0
0
3
8
13
20
25
30
31
27
23
19
18
9
3
23
46
68
77
85
92
90
84
77

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
8
6
4
6
8
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
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

32
39
33
34
28
11
13
13
9
8
7
2
28
46
61
58
49
26
20
10
1
10
11
9

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.3
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

50
50
50
50
55
61
67
68
68
69
69
69
69
77
84
93
95
96
98
91
86
80
70
60

Pressure (mb)

1018
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018

Ozone (du)

365
363
362
360
359
358
356
357
357
358
358
357
357
357
357
358
360
362
364
365
366
366
368
371

Thursday 16

Waning Crescent 0%

06:13

19:43

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: 06:36, Set: 20:39, Transit: 13:38. Moon - Rise: 06:13, Set: 19:43. Civil Dark: 21:15 - 06:00. Nautical Dark: 22:00 - 05:15. Astro Dark: 22:52 - 04:22

Total Clouds (% Sky Obscured)

82
91
100
100
100
100
99
98
97
98
99
100
99
99
98
98
97
97

Low Clouds (% Sky Obscured)

35
35
35
27
18
11
15
23
30
33
35
37
43
48
53
61
69
79

Medium Clouds (% Sky Obscured)

34
42
54
55
46
37
33
40
46
65
82
96
96
96
96
96
97
97

High Clouds (% Sky Obscured)

82
69
59
74
87
100
77
60
45
70
90
100
95
93
95
95
97
97

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

7
3
3
15
26
39
41
36
28
17
9
2
5
6
7
29
31
36

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)

13
13
12
11
11
10
9
9
10
10
9
9
9
9
9
9
8
8

Chance of Frost

Temperature (°C)

16
16
16
16
15
14
13
12
11
11
10
10
10
10
10
10
10
10

Feels Like (°C)

10
15
14
13
13
13
13
9
10
10
9
9
9
8
8
8
8
8

Dew Point (°C)

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

Relative Humidity (%)

53
55
54
56
62
68
75
77
80
83
81
80
78
81
83
84
83
83

Pressure (mb)

1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

373
373
373
372
371
369
367
365
364
362
360
358
356
355
353
351
356
361

Forecast for Utrecht, Gemeente Utrecht, Netherlands (52.09,5.12)

Generated: 10/04/26 14:54:49. Forecast: 10/04/26 to 16/04/26. Timezone: UTC+2.00