Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 23

Waxing Crescent 46%

11:03

03:26

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

Sun - Rise: 06:28, Set: 20:48, Transit: 13:38. Moon - Rise: 11:03, Set: 03:26. Civil Dark: 21:24 - 05:52. Nautical Dark: 22:10 - 05:07. Astro Dark: 23:03 - 04:14

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
0
0
0
0
0
0
0

Low 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

Medium 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

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
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

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

Chance of Frost

Temperature (°C)

9
8
7
6
6
5
5
4
5
8
10
12
14
16
17
17
18
18
18
17
16
13
12
10

Feels Like (°C)

8
7
6
5
5
4
4
3
4
6
8
10
12
13
14
15
16
16
16
16
15
12
10
8

Dew Point (°C)

4
4
3
3
3
3
2
2
2
2
3
4
4
4
3
2
3
3
6
8
10
8
6
5

Relative Humidity (%)

69
73
77
78
81
82
83
83
79
69
62
56
50
44
39
35
36
37
45
56
67
71
70
71

Pressure (mb)

1027
1028
1028
1028
1029
1029
1029
1029
1029
1030
1030
1030
1030
1029
1029
1029
1028
1028
1027
1027
1027
1027
1027
1028

Ozone (du)

394
396
397
400
401
400
399
393
391
386
381
378
375
373
372
372
372
372
373
374
375
374
373
372

Friday 24

First Quarter 58%

12:28

03:56

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 Good
13 Good
14 Good
15 Good
16 Good
17 Good
18 Good
19 Good
20 Good
21 Good
22 Good
23 Good

Sun - Rise: 06:26, Set: 20:50, Transit: 13:38. Moon - Rise: 12:28, Set: 03:56. Civil Dark: 21:26 - 05:50. Nautical Dark: 22:12 - 05:04. Astro Dark: 23:05 - 04:11

Total Clouds (% Sky Obscured)

0
1
0
1
1
29
57
82
95
90
77
60
0
0
0
0
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
29
57
82
95
90
77
60
0
0
0
0
0
0
0
0
0
0
0
0

Medium 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

High Clouds (% Sky Obscured)

0
1
0
1
1
1
1
0
1
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

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

Chance of Frost

Temperature (°C)

8
7
6
5
5
4
4
4
4
5
5
7
9
12
14
15
16
17
17
16
15
12
11
10

Feels Like (°C)

7
5
5
4
4
4
3
3
4
4
4
6
8
10
12
14
15
15
15
15
14
11
10
8

Dew Point (°C)

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

Relative Humidity (%)

74
81
85
88
88
88
86
86
77
66
59
52
46
43
41
39
38
40
47
56
66
71
69
67

Pressure (mb)

1028
1028
1027
1027
1027
1027
1026
1026
1027
1027
1027
1027
1026
1025
1025
1024
1023
1023
1022
1022
1022
1022
1023
1023

Ozone (du)

372
372
373
374
374
374
375
375
376
377
378
385
381
378
377
376
375
372
369
368
366
367
367
366

Saturday 25

Waxing Gibbous 68%

13:51

04:18

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

Sun - Rise: 06:24, Set: 20:52, Transit: 13:38. Moon - Rise: 13:51, Set: 04:18. Civil Dark: 21:28 - 05:48. Nautical Dark: 22:14 - 05:02. Astro Dark: 23:08 - 04:07

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
40
21
5
2
8
10
2
13
19
30
89
93
96
99
99

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
40
20
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
14
91
93

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
2
5
2
8
10
2
13
19
30
89
92
94
96
93

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
59
100
100
100
58
2
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)

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

Chance of Frost

Temperature (°C)

9
7
6
5
5
4
4
4
4
7
9
11
13
15
17
17
18
18
17
17
15
13
11
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
69
71
75
79
79
80
77
69
62
54
48
43
40
39
38
37
37
43
52
63
62
64
67

Pressure (mb)

1023
1023
1023
1022
1023
1022
1022
1022
1022
1023
1023
1023
1022
1022
1022
1021
1021
1020
1020
1021
1021
1022
1022
1023

Ozone (du)

366
366
367
369
369
368
367
369
371
372
369
363
359
358
358
358
359
360
361
361
361
362
365
366

Sunday 26

Waxing Gibbous 78%

15:10

04:34

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 OK
13 OK
14 OK
15 Good
16 Good
17 OK
18 OK
19 OK
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 06:22, Set: 20:53, Transit: 13:38. Moon - Rise: 15:10, Set: 04:34. Civil Dark: 21:30 - 05:46. Nautical Dark: 22:16 - 04:59. Astro Dark: 23:11 - 04:04

Total Clouds (% Sky Obscured)

100
100
98
96
94
90
86
82
80
78
76
61
46
31
25
14
10
22
32
42
52
61
60
95

Low Clouds (% Sky Obscured)

0
0
7
15
22
27
29
33
23
15
5
3
2
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

97
99
98
81
92
79
61
62
80
78
76
61
46
31
4
4
0
1
3
4
2
1
0
5

High Clouds (% Sky Obscured)

90
88
72
56
39
37
34
32
22
16
10
11
13
19
17
14
10
22
32
42
52
61
60
92

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)

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

Chance of Frost

Temperature (°C)

9
8
7
7
7
6
6
6
6
8
9
11
12
14
15
15
16
16
16
15
13
11
9
8

Feels Like (°C)

6
5
4
5
4
3
3
4
4
5
6
7
9
11
12
13
15
15
14
14
12
9
7
6

Dew Point (°C)

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

Relative Humidity (%)

67
68
69
71
76
81
90
93
87
78
69
62
55
49
46
43
42
42
43
53
64
65
65
69

Pressure (mb)

1023
1024
1024
1024
1024
1025
1025
1025
1025
1026
1026
1026
1025
1025
1025
1024
1024
1023
1023
1023
1023
1023
1023
1023

Ozone (du)

368
368
368
369
367
367
369
370
372
373
374
376
377
378
380
381
378
375
375
376
376
376
377
377

Monday 27

Waxing Gibbous 86%

16:26

04:47

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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 06:20, Set: 20:55, Transit: 13:38. Moon - Rise: 16:26, Set: 04:47. Civil Dark: 21:32 - 05:44. Nautical Dark: 22:18 - 04:57. Astro Dark: 23:14 - 04:01

Total Clouds (% Sky Obscured)

82
100
100
100
100
100
100
100
100
100
100
100
100
100
97
95
92
94
97
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
6
8
9
9
18

Medium Clouds (% Sky Obscured)

11
15
29
39
100
100
99
100
100
100
100
100
100
100
97
95
92
94
95
97
98
99
99
99

High Clouds (% Sky Obscured)

82
100
80
59
39
57
79
100
84
68
52
35
17
0
0
0
0
33
67
100
100
100
100
88

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

Chance of Frost

Temperature (°C)

7
7
6
6
6
6
6
6
7
8
9
11
12
13
14
14
15
15
14
14
13
11
10
9

Feels Like (°C)

4
4
3
3
3
2
2
2
4
5
7
7
9
10
11
11
11
12
12
12
12
9
9
9

Dew Point (°C)

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

Relative Humidity (%)

71
74
74
74
71
70
68
70
70
65
62
58
55
51
47
47
47
47
53
59
66
68
69
72

Pressure (mb)

1023
1023
1023
1022
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1020
1020
1019
1019
1018
1018
1018
1018
1018
1018

Ozone (du)

377
376
374
373
374
373
376
379
382
386
385
386
389
391
395
397
399
400
402
404
406
411
416
422

Tuesday 28

Waxing Gibbous 92%

17:40

04:59

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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 06:18, Set: 20:56, Transit: 13:37. Moon - Rise: 17:40, Set: 04:59. Civil Dark: 21:33 - 05:41. Nautical Dark: 22:21 - 04:54. Astro Dark: 23:17 - 03:58

Total Clouds (% Sky Obscured)

99
99
99
99
99
100
100
100
99
97
96
97
98
100
100
100
99
94
89
84
83
80
74
81

Low Clouds (% Sky Obscured)

26
35
43
50
57
58
59
60
60
60
60
65
70
70
74
72
66
54
47
41
25
16
11
14

Medium Clouds (% Sky Obscured)

99
99
98
96
95
96
98
98
98
97
96
97
96
94
95
97
98
93
89
84
61
37
13
11

High Clouds (% Sky Obscured)

76
67
65
61
53
49
47
48
49
49
49
66
82
100
98
96
95
69
44
18
34
53
69
56

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
10
13
14
20
27
35
29
23
19
21
21
21
20
18
6
8
6
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
8
8
5
5
5
5
5
5
6
6
7
7
7
7
8
8
8
8
8
8
8
8
7

Dew Point (°C)

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

Relative Humidity (%)

72
73
74
71
69
68
70
73
74
79
84
90
85
84
81
80
81
80
80
81
81
85
91
96

Pressure (mb)

1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1014
1014
1014
1014
1014
1015
1015

Ozone (du)

423
424
425
420
415
410
410
410
411
412
413
414
414
413
413
412
411
410
409
407
406
405
404
404

Wednesday 29

Waxing Gibbous 95%

18:53

05:11

Sun - Rise: 06:16, Set: 20:58, Transit: 13:37. Moon - Rise: 18:53, Set: 05:11. Civil Dark: 21:35 - 05:39. Nautical Dark: 22:23 - 04:52. Astro Dark: 23:20 - 03:54

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 Elst, Flemish Brabant, Kingdom of Belgium (50.77,4.89)

Generated: 22/04/26 23:35:42. Forecast: 23/04/26 to 29/04/26. Timezone: UTC+2.00