Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 18

First Quarter 49%

16:00

22:47

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

Sun - Rise: 07:21, Set: 19:47, Transit: 13:34. Moon - Rise: 16:00, Set: 22:47. Civil Dark: 20:20 - 06:48. Nautical Dark: 20:59 - 06:09. Astro Dark: 21:40 - 05:28

Total Clouds (% Sky Obscured)

94
92
72
38
9
4
4
4
16
29
45
49
66
68
68
75
43
66
82
97
90
87
91
100

Low Clouds (% Sky Obscured)

53
45
27
26
3
3
4
4
16
29
45
46
42
44
29
38
26
10
29
17
13
10
59
62

Medium Clouds (% Sky Obscured)

28
29
20
15
5
0
0
0
0
0
0
21
0
0
17
20
10
24
21
29
54
55
90
79

High Clouds (% Sky Obscured)

39
8
2
2
0
0
0
0
0
0
0
1
40
42
43
44
13
36
75
68
40
30
4
84

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
6
19
13
2
1
0
0
0
1
1
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)

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

Chance of Frost

Temperature (°C)

14
14
13
13
12
11
11
12
14
16
17
18
19
19
20
20
19
18
16
15
15
15
15
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
95
95
95
95
95
90
83
73
61
53
49
44
41
41
42
47
53
62
67
69
74
78
71

Pressure (mb)

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

Ozone (du)

300
300
302
302
306
309
307
304
304
303
303
302
300
297
296
295
294
292
288
285
285
284
285
286

Saturday 19

Waxing Gibbous 59%

16:48

23:45

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
00 Bad
01 Bad

Sun - Rise: 07:22, Set: 19:45, Transit: 13:34. Moon - Rise: 16:48, Set: 23:45. Civil Dark: 20:18 - 06:50. Nautical Dark: 20:57 - 06:10. Astro Dark: 21:37 - 05:30

Total Clouds (% Sky Obscured)

88
98
98
98
97
87
99
100
100
100
100
100
100
99
98
94
76
86
93
100
100
100
94
66

Low Clouds (% Sky Obscured)

71
78
92
35
46
30
29
37
34
39
47
36
22
34
29
22
25
19
0
9
0
0
0
3

Medium Clouds (% Sky Obscured)

88
98
93
94
81
43
66
40
49
38
17
3
39
2
35
38
14
11
23
4
19
12
8
6

High Clouds (% Sky Obscured)

30
28
40
73
87
86
98
100
100
100
100
100
100
93
74
83
40
83
92
100
100
100
94
66

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)

11
11
11
12
12
12
13
13
14
15
15
15
15
15
16
14
13
11
9
8
9
10
10
11

Chance of Frost

Temperature (°C)

15
15
15
15
15
15
15
16
16
17
18
20
20
21
22
22
22
21
19
18
17
16
16
16

Feels Like (°C)

11
12
11
12
11
11
12
12
13
13
14
16
16
16
17
17
18
19
18
16
15
14
14
14

Dew Point (°C)

10
10
10
10
10
11
11
11
11
10
10
10
7
5
4
5
7
12
14
13
13
13
13
14

Relative Humidity (%)

71
71
73
71
73
76
78
74
68
64
60
54
42
34
32
34
39
57
72
76
77
79
82
85

Pressure (mb)

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

Ozone (du)

288
290
290
290
290
291
290
290
290
290
290
288
288
286
285
284
284
285
285
286
285
283
282
282

Sunday 20

Waxing Gibbous 68%

17:24

00:52

02 Bad
03 OK
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
00 Bad
01 Bad

Sun - Rise: 07:24, Set: 19:43, Transit: 13:33. Moon - Rise: 17:24, Set: 00:52. Civil Dark: 20:15 - 06:51. Nautical Dark: 20:54 - 06:12. Astro Dark: 21:35 - 05:32

Total Clouds (% Sky Obscured)

80
38
99
100
100
100
100
100
100
98
95
84
88
100
97
63
85
77
85
92
100
100
93
100

Low Clouds (% Sky Obscured)

9
16
35
44
32
66
88
97
100
96
93
84
88
52
65
47
20
29
41
31
25
10
5
0

Medium Clouds (% Sky Obscured)

9
8
73
71
80
78
62
84
82
52
48
51
35
62
46
34
6
10
32
5
19
1
0
0

High Clouds (% Sky Obscured)

80
17
86
100
95
99
100
100
100
64
61
43
61
100
86
45
67
57
74
87
100
100
93
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
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
1
3
12
19
15
25
41
69
51
19
8
13
4
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
10
11
12
12
12
12
12
11
11
11
11
12
12
12
12
11
9
6
5
4
3
2
2

Chance of Frost

Temperature (°C)

16
15
15
15
16
16
16
17
17
17
17
17
18
19
19
19
19
18
15
14
13
12
11
10

Feels Like (°C)

15
13
14
13
14
14
15
15
15
16
15
16
15
15
15
15
15
14
13
12
11
10
10
9

Dew Point (°C)

14
13
14
14
15
15
15
15
15
16
15
13
8
5
7
8
8
9
9
8
8
7
7
7

Relative Humidity (%)

89
87
90
92
93
95
93
87
89
92
83
76
50
39
44
47
50
55
64
64
70
70
77
78

Pressure (mb)

1022
1022
1022
1022
1023
1023
1023
1024
1024
1025
1025
1025
1025
1026
1026
1026
1026
1027
1028
1029
1029
1030
1030
1030

Ozone (du)

283
282
281
280
281
281
280
282
285
286
286
286
285
285
283
282
282
282
283
284
288
288
286
286

Monday 21

Waxing Gibbous 77%

17:51

02:05

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
00 Bad
01 Bad

Sun - Rise: 07:25, Set: 19:40, Transit: 13:33. Moon - Rise: 17:51, Set: 02:05. Civil Dark: 20:13 - 06:53. Nautical Dark: 20:52 - 06:14. Astro Dark: 21:32 - 05:33

Total Clouds (% Sky Obscured)

96
97
95
96
97
71
89
82
71
72
76
77
79
65
54
63
55
53
66
83
93
90
89
90

Low Clouds (% Sky Obscured)

13
27
38
30
30
36
43
37
39
38
41
40
39
28
29
27
22
17
33
59
76
79
82
83

Medium Clouds (% Sky Obscured)

4
4
5
7
9
13
10
7
3
8
12
14
11
14
15
19
21
23
27
29
33
24
22
15

High Clouds (% Sky Obscured)

92
89
83
86
89
57
77
68
60
53
46
47
42
19
2
10
2
3
7
10
12
7
3
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)

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

Chance of Frost

Temperature (°C)

9
9
9
9
9
10
10
12
14
16
17
18
19
19
19
19
18
17
15
15
14
14
14
13

Feels Like (°C)

8
8
7
7
7
8
9
10
12
14
14
15
15
15
16
17
15
15
14
13
13
12
12
11

Dew Point (°C)

6
6
6
7
7
8
8
8
7
7
7
6
5
3
3
3
3
6
7
8
7
6
6
5

Relative Humidity (%)

78
80
82
84
85
87
84
73
62
56
49
44
39
35
33
34
37
48
57
62
60
58
58
57

Pressure (mb)

1030
1030
1030
1030
1030
1030
1030
1031
1031
1031
1031
1030
1030
1030
1029
1029
1029
1029
1029
1029
1029
1030
1029
1029

Ozone (du)

285
284
283
282
281
281
280
280
280
280
280
280
279
278
277
276
276
275
274
272
272
273
272
272

Tuesday 22

Waxing Gibbous 85%

18:12

02:05

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 OK
17 OK
18 Bad
19 Bad
20 OK
21 OK
22 Good
23 Good
00 Good
01 OK

Sun - Rise: 07:27, Set: 19:38, Transit: 13:33. Moon - Rise: 18:12, Set: 02:05. Civil Dark: 20:11 - 06:54. Nautical Dark: 20:49 - 06:16. Astro Dark: 21:30 - 05:35

Total Clouds (% Sky Obscured)

89
89
88
88
89
89
90
92
94
87
82
76
66
56
44
47
49
51
37
21
8
10
17
21

Low Clouds (% Sky Obscured)

79
77
73
72
75
78
83
85
87
83
82
76
66
56
44
47
49
51
35
17
0
0
0
0

Medium Clouds (% Sky Obscured)

17
14
11
11
7
9
10
11
13
10
5
1
1
0
0
0
0
0
1
2
7
8
8
5

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
8
10
11
8

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)

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

Chance of Frost

Temperature (°C)

13
13
13
12
12
12
12
13
14
16
17
18
19
20
20
21
19
18
17
15
14
13
12
11

Feels Like (°C)

11
11
11
11
11
11
10
12
14
15
16
17
18
19
19
18
19
20
21
15
15
14
13
13

Dew Point (°C)

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

Relative Humidity (%)

56
56
58
60
61
62
64
65
67
68
69
70
69
65
62
58
62
67
74
78
82
86
84
84

Pressure (mb)

1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1028
1028
1027
1027
1027
1028
1028
1028
1028
1028
1027

Ozone (du)

272
272
273
273
272
272
272
272
273
273
274
274
273
274
274
275
276
277
278
278
279
280
280
280

Wednesday 23

Waxing Gibbous 92%

18:28

03:20

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

Sun - Rise: 07:29, Set: 19:36, Transit: 13:32. Moon - Rise: 18:28, Set: 03:20. Civil Dark: 20:08 - 06:56. Nautical Dark: 20:47 - 06:17. Astro Dark: 21:27 - 05:37

Total Clouds (% Sky Obscured)

29
44
50
45
45
45
41
42
43
49
55
60
60
55
54
60
65
71
64
60
57
62
67
73

Low Clouds (% Sky Obscured)

1
2
3
3
5
12
13
16
15
8
4
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

5
3
3
5
4
5
5
5
5
5
9
18
28
43
45
29
20
7
3
2
0
0
0
0

High Clouds (% Sky Obscured)

26
43
50
45
45
45
41
42
41
49
55
60
60
28
1
16
32
49
51
50
50
57
63
69

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
7
7
6
26
34
38
37
34
30
25
19
25
18
9
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
4
4
4
4
4
5
6
7
7
7
8
8
8
8
8
7
7
6
5
4
4
4

Chance of Frost

Temperature (°C)

11
11
11
10
10
11
11
13
15
17
18
18
19
19
19
19
18
17
15
14
13
12
12
12

Feels Like (°C)

13
11
11
11
11
11
11
11
12
12
12
13
13
18
18
17
18
19
20
11
12
12
11
11

Dew Point (°C)

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

Relative Humidity (%)

83
83
81
83
83
84
83
71
60
52
46
41
36
35
34
33
39
46
54
56
58
59
58
57

Pressure (mb)

1027
1027
1027
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025
1025
1025
1025
1025
1025
1025
1026
1026
1026

Ozone (du)

280
279
278
277
277
278
278
278
277
277
276
276
276
276
276
276
276
276
276
276
277
277
276
276

Thursday 24

Waxing Gibbous 96%

18:42

04:36

Sun - Rise: 07:30, Set: 19:34, Transit: 13:32. Moon - Rise: 18:42, Set: 04:36. Civil Dark: 20:06 - 06:57. Nautical Dark: 20:45 - 06:19. Astro Dark: 21:25 - 05:39

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: 18/09/26 02:06:59. Forecast: 18/09/26 to 24/09/26. Timezone: UTC+2.00