Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 18

Waning Crescent 0%

06:31

18:23

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

Sun - Rise: 06:46, Set: 18:50, Transit: 12:48. Moon - Rise: 06:31, Set: 18:23. Civil Dark: 19:23 - 06:13. Nautical Dark: 20:02 - 05:35. Astro Dark: 20:42 - 04:55

Total Clouds (% Sky Obscured)

12
18
20
19
3
1
1
2
3
2
2
1
8
15
18
0
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

12
6
9
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

12
18
13
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)

5
1
1
0
0
0
1
1
2
1
2
1
8
14
17
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)

3
3
5
6
8
9
11
12
12
12
12
13
14
14
13
11
10
9
8
7
7
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
88
84
70
66
59
47
41
40
38
38
39
46
52
57
60
68
72
74
78
79
82
83
85

Pressure (mb)

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

Ozone (du)

336
336
336
337
337
338
339
341
344
344
342
341
342
343
342
342
342
343
343
342
341
340
339
337

Thursday 19

New Moon 0%

06:44

19:46

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

Sun - Rise: 06:44, Set: 18:52, Transit: 12:48. Moon - Rise: 06:44, Set: 19:46. Civil Dark: 19:25 - 06:11. Nautical Dark: 20:03 - 05:32. Astro Dark: 20:44 - 04:52

Total Clouds (% Sky Obscured)

0
1
1
28
5
5
7
12
11
16
0
0
0
4
9
100
55
100
100
100
44
63
96
70

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
16
0
0
2
8
9
12
0
0
0
0
0
0
4
51
96
97
44
63
65
51

High Clouds (% Sky Obscured)

0
1
1
1
5
5
7
11
2
0
0
0
0
4
9
90
55
100
100
100
22
17
80
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)

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

Chance of Frost

Temperature (°C)

5
5
4
4
4
7
9
11
13
14
15
15
15
14
13
11
9
9
8
8
7
7
6
6

Feels Like (°C)

3
3
3
2
2
4
6
7
9
11
12
12
12
12
12
9
6
5
5
4
5
4
4
4

Dew Point (°C)

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

Relative Humidity (%)

85
83
86
85
82
71
63
56
51
47
44
42
43
50
60
65
64
65
69
70
71
74
76
78

Pressure (mb)

1026
1026
1026
1026
1027
1027
1027
1027
1026
1025
1025
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023

Ozone (du)

335
334
336
336
336
339
343
345
344
345
347
346
347
348
346
342
349
355
357
359
364
363
367
370

Friday 20

Waxing Crescent 3%

06:57

21:12

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

Sun - Rise: 06:41, Set: 18:54, Transit: 12:48. Moon - Rise: 06:57, Set: 21:12. Civil Dark: 19:26 - 06:09. Nautical Dark: 20:05 - 05:30. Astro Dark: 20:45 - 04:50

Total Clouds (% Sky Obscured)

62
87
53
38
34
59
35
64
69
78
87
82
85
98
100
100
100
100
100
72
56
46
36
30

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
2
24
24
41
22
45
29
10
27
55
57
48
42
36
25

Medium Clouds (% Sky Obscured)

23
49
27
27
27
45
35
64
61
63
64
25
23
43
22
34
27
19
43
62
20
43
15
9

High Clouds (% Sky Obscured)

40
60
24
6
1
0
0
2
35
58
50
60
65
92
99
100
100
100
100
36
5
4
1
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
4
4
5
5
6
8
9
9
9
10
11
9
8
7
7
6
5
6
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
80
83
82
80
74
67
61
58
53
49
50
57
70
77
78
80
78
78
75
73
70
69
70

Pressure (mb)

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

Ozone (du)

370
373
376
377
379
379
377
376
374
371
370
371
370
367
365
365
364
364
364
364
364
365
366
366

Saturday 21

Waxing Crescent 8%

07:13

22:41

04 OK
05 OK
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 OK
02 OK
03 OK

Sun - Rise: 06:39, Set: 18:55, Transit: 12:47. Moon - Rise: 07:13, Set: 22:41. Civil Dark: 19:28 - 06:06. Nautical Dark: 20:07 - 05:28. Astro Dark: 20:47 - 04:47

Total Clouds (% Sky Obscured)

38
47
58
57
56
66
73
72
70
69
68
66
60
52
49
54
81
78
69
63
51
43
37
30

Low Clouds (% Sky Obscured)

29
34
45
52
56
66
60
51
41
42
40
38
33
27
21
14
7
0
0
2
1
1
1
1

Medium Clouds (% Sky Obscured)

4
9
4
4
5
6
25
60
50
14
14
14
14
14
12
9
3
0
6
12
15
16
20
21

High Clouds (% Sky Obscured)

2
4
5
5
2
2
20
19
30
25
15
5
5
0
0
33
67
78
69
60
41
27
14
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
1
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
7
6
7
8
9
9
10
11
11
10
10
9
8
7
6
6
6
5
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
71
72
73
78
71
65
60
56
53
51
49
49
53
61
69
73
74
78
80
82
82
83
86

Pressure (mb)

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

Ozone (du)

366
364
364
364
364
364
363
363
363
365
366
365
367
368
367
366
366
364
363
364
366
366
369
371

Sunday 22

Waxing Crescent 16%

07:33

00:11

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

Sun - Rise: 06:37, Set: 18:57, Transit: 12:47. Moon - Rise: 07:33, Set: 00:11. Civil Dark: 19:30 - 06:04. Nautical Dark: 20:09 - 05:25. Astro Dark: 20:49 - 04:44

Total Clouds (% Sky Obscured)

39
47
50
44
36
30
40
48
60
71
72
96
93
83
100
100
100
100
99
98
97
98
99
100

Low Clouds (% Sky Obscured)

8
14
19
12
7
0
0
0
1
2
2
2
2
5
3
2
2
2
3
4
5
10
15
22

Medium Clouds (% Sky Obscured)

33
37
41
34
25
17
26
29
36
36
37
37
36
30
50
58
59
64
74
85
94
93
94
95

High Clouds (% Sky Obscured)

4
8
11
12
13
13
31
48
60
71
72
96
93
83
100
100
100
100
94
88
81
88
94
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 (%)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
86
85
83
77
67
60
54
48
48
48
46
46
49
59
62
64
68
70
71
72
72
71
71

Pressure (mb)

1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1019
1019
1018
1018
1018
1018
1018
1017
1017
1017

Ozone (du)

374
375
377
380
382
383
385
386
386
386
385
383
385
386
390
392
391
390
389
385
382
379
377
375

Monday 23

Waxing Crescent 26%

08:02

01:38

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
02 Bad
03 Bad

Sun - Rise: 06:35, Set: 18:58, Transit: 12:47. Moon - Rise: 08:02, Set: 01:38. Civil Dark: 19:31 - 06:02. Nautical Dark: 20:10 - 05:23. Astro Dark: 20:51 - 04:42

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
99
98
96
94
91
88
90
92
94
90
84
78

Low Clouds (% Sky Obscured)

25
29
34
46
53
59
35
30
30
41
51
62
74
85
90
87
81
76
80
84
90
88
84
78

Medium Clouds (% Sky Obscured)

96
97
97
98
99
100
100
100
100
100
100
100
99
98
96
75
50
26
19
14
8
10
11
11

High Clouds (% Sky Obscured)

100
100
100
100
100
100
71
43
19
46
73
100
72
44
21
23
29
39
56
72
80
90
84
75

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
2
2
0
1
2
2
7
9
14
28
26
26
32
31
29
26
22
12
15
13
4

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
9
11
12
13
14
15
14
14
13
13
13
13
14
14
15
15
14
14
14
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
72
72
74
67
63
58
58
57
56
59
60
62
66
70
74
76
77
80
81
84
85
87
88

Pressure (mb)

1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016

Ozone (du)

373
373
372
371
372
372
373
373
374
374
374
374
374
375
376
377
378
378
378
378
377
376
374
372

Tuesday 24

Waxing Crescent 38%

08:42

02:51

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

Sun - Rise: 06:33, Set: 19:00, Transit: 12:46. Moon - Rise: 08:42, Set: 02:51. Civil Dark: 19:33 - 06:00. Nautical Dark: 20:12 - 05:20. Astro Dark: 20:53 - 04:39

Total Clouds (% Sky Obscured)

84
92
100
92
85
78
83
86
91
92
92
94
96
98
100
100
100
100
100
99
99

Low Clouds (% Sky Obscured)

78
71
62
66
69
75
75
69
69
65
60
58
53
46
41
40
43
46
63
81
99

Medium Clouds (% Sky Obscured)

36
63
92
92
85
78
83
84
84
85
87
89
93
97
100
98
96
96
86
76
67

High Clouds (% Sky Obscured)

83
88
100
84
69
53
47
46
50
75
90
94
95
95
95
65
38
46
50
65
70

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

Fog (%)

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

Precipitation Probability (%)

7
4
3
8
8
6
7
6
5
28
38
43
54
67
69
59
43
20
54
72
70

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
90
90
91
90
90
90
88
85
84
87
88
91
91
91
91
91
91
91
91
91

Pressure (mb)

1017
1017
1018
1018
1019
1019
1020
1019
1019
1019
1018
1018
1018
1018
1018
1018
1017
1017
1017
1017
1016

Ozone (du)

370
369
368
367
365
363
361
360
359
358
358
358
358
364
370
376
383
389
396
395
394

Forecast for Boutersem, Flemish Brabant, Kingdom of Belgium (50.84,4.83)

Generated: 18/03/26 04:18:23. Forecast: 18/03/26 to 24/03/26. Timezone: UTC+1.00