Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 28

Waxing Gibbous 92%

17:50

05:10

02 Bad
03 Bad
04 Bad
05 Bad
06 OK
07 OK
08 OK
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 OK
23 Bad
00 Bad
01 Bad

Sun - Rise: 06:34, Set: 21:03, Transit: 13:48. Moon - Rise: 17:50, Set: 05:10. Civil Dark: 21:38 - 05:58. Nautical Dark: 22:22 - 05:14. Astro Dark: 23:14 - 04:22

Total Clouds (% Sky Obscured)

76
100
100
78
37
28
45
53
77
58
78
77
71
55
80
73
51
65
66
70
40
67
46
64

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
9
4
9
0
0
0
27
6
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

76
94
97
78
37
28
45
53
77
58
78
77
71
55
80
73
27
36
40
42
22
38
30
44

High Clouds (% Sky Obscured)

73
72
5
16
35
28
45
17
45
55
50
55
60
2
0
0
0
0
50
40
30
30
30
30

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
2
0
0
0
0
0
0
0
1
0
1
2
6
3
2
1
3
6
5
5
4
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
7
7
8
7
7
9
11
11
10
9
9
9
10
11
11
12
11
10
9
9
11
12
13

Chance of Frost

Temperature (°C)

12
11
10
10
9
9
9
10
12
13
15
15
16
18
19
19
20
19
18
16
15
15
14
14

Feels Like (°C)

10
8
8
7
7
5
5
6
7
9
12
12
13
14
15
15
16
17
17
14
13
12
10
9

Dew Point (°C)

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

Relative Humidity (%)

64
67
68
69
64
62
62
61
59
58
55
49
44
39
36
35
37
44
52
61
65
67
57
54

Pressure (mb)

1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1016
1016
1015
1015
1015
1015
1015
1016
1016
1016
1016

Ozone (du)

390
395
396
395
396
399
404
408
411
414
413
415
415
412
412
411
411
410
408
405
402
399
400
403

Wednesday 29

Waxing Gibbous 97%

19:02

05:23

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 Good
23 Good
00 Good
01 Good

Sun - Rise: 06:32, Set: 21:04, Transit: 13:48. Moon - Rise: 19:02, Set: 05:23. Civil Dark: 21:39 - 05:57. Nautical Dark: 22:24 - 05:12. Astro Dark: 23:17 - 04:19

Total Clouds (% Sky Obscured)

77
44
44
49
45
45
100
100
100
95
99
100
58
65
87
81
86
82
69
76
7
9
1
2

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)

75
32
36
34
45
40
2
0
23
0
1
52
18
11
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

20
15
35
30
30
25
100
100
100
82
95
100
40
34
87
81
86
82
69
76
7
9
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 (%)

3
4
8
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)

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

Chance of Frost

Temperature (°C)

13
13
12
12
11
11
11
12
14
15
17
20
21
22
23
23
23
22
20
18
17
16
14
14

Feels Like (°C)

9
9
9
8
7
7
7
8
9
10
13
14
15
17
18
17
17
16
15
13
12
11
9
10

Dew Point (°C)

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

Relative Humidity (%)

55
57
60
62
63
62
60
59
55
51
45
40
38
39
38
40
43
45
46
46
43
42
42
42

Pressure (mb)

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

Ozone (du)

402
402
400
399
396
394
393
392
392
392
392
392
390
387
384
382
380
380
380
380
380
379
379
379

Thursday 30

Waxing Gibbous 99%

20:13

05:38

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 OK
23 Good
00 Good
01 Good

Sun - Rise: 06:30, Set: 21:06, Transit: 13:48. Moon - Rise: 20:13, Set: 05:38. Civil Dark: 21:41 - 05:55. Nautical Dark: 22:26 - 05:09. Astro Dark: 23:19 - 04:16

Total Clouds (% Sky Obscured)

9
8
5
8
1
1
1
0
0
0
0
0
0
0
0
0
0
0
10
18
25
18
9
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
3
4
7
7
3
0

High Clouds (% Sky Obscured)

9
8
5
8
1
1
1
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

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)

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

Chance of Frost

Temperature (°C)

13
12
11
11
10
9
10
11
13
15
17
19
21
22
23
23
23
23
21
20
18
16
15
14

Feels Like (°C)

9
7
7
7
5
6
6
7
9
11
13
15
17
19
19
20
20
20
19
18
17
15
13
13

Dew Point (°C)

0
-0
-0
-0
-1
-3
-4
-3
-2
-1
-0
1
2
4
5
7
8
8
9
10
9
7
6
5

Relative Humidity (%)

42
42
44
47
47
43
39
37
35
32
31
29
29
29
31
33
36
40
44
52
57
56
53
53

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1021
1020
1020
1020
1019
1019
1018
1018
1017
1017
1017
1018
1018
1019
1019
1019
1019

Ozone (du)

379
382
382
383
383
380
378
377
378
378
378
379
378
378
377
375
374
373
373
373
373
374
375
373

Friday 1

Full Moon 100%

21:25

05:54

02 OK
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: 06:29, Set: 21:07, Transit: 13:48. Moon - Rise: 21:25, Set: 05:54. Civil Dark: 21:43 - 05:53. Nautical Dark: 22:28 - 05:07. Astro Dark: 23:22 - 04:13

Total Clouds (% Sky Obscured)

27
53
75
75
75
70
70
75
91
87
83
71
83
91
100
100
100
98
98
100
96
87
81
95

Low Clouds (% Sky Obscured)

17
33
50
55
59
64
64
64
64
63
61
60
60
60
61
49
37
28
36
46
52
36
22
8

Medium Clouds (% Sky Obscured)

4
10
16
22
29
35
54
65
75
57
38
20
24
28
33
39
51
59
58
52
52
58
59
85

High Clouds (% Sky Obscured)

27
53
75
75
75
70
70
75
91
64
33
2
28
51
70
70
60
55
60
70
67
79
81
91

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
5
7
9
8
9
4
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
Very Light Rain
None
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
2
6
10
39
41
21
34
37
42
52
58
49
61
64
52
26
8
9
11
19
7

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
12
12
12
12
12
13
14
16
17
19
20
22
21
20
20
21
21
21
20
19
19
19
18

Dew Point (°C)

4
4
4
3
4
4
4
4
5
5
6
7
8
9
11
13
13
14
14
14
13
13
13
13

Relative Humidity (%)

54
53
53
53
54
53
50
48
47
45
44
43
45
46
52
60
60
67
69
70
72
76
79
82

Pressure (mb)

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

Ozone (du)

373
372
371
372
373
374
373
372
372
373
373
373
374
375
376
375
374
372
372
373
374
374
373
367

Saturday 2

Waning Gibbous 100%

22:36

06:14

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: 06:27, Set: 21:08, Transit: 13:48. Moon - Rise: 22:36, Set: 06:14. Civil Dark: 21:44 - 05:51. Nautical Dark: 22:30 - 05:05. Astro Dark: 23:25 - 04:11

Total Clouds (% Sky Obscured)

99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

20
27
37
49
59
69
69
70
67
76
80
84
83
82
81
75
70
65
64
61
60
64
66
69

Medium Clouds (% Sky Obscured)

78
63
64
67
68
100
100
100
100
79
91
100
95
90
86
93
95
97
83
66
50
55
70
86

High Clouds (% Sky Obscured)

99
99
100
100
100
100
100
100
99
98
100
100
100
99
99
98
98
100
89
84
81
85
95
98

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
8
4
6
7
8
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
Very Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

24
37
30
52
68
76
72
78
87
95
95
95
95
95
95
90
83
85
95
95
89
95
95
94

Precipitation Amount (mm)

0
0
0
0
0.3
0.5
0.3
0.4
0.6
0.8
0.8
0.7
1.3
1.1
0.9
0.6
0.4
0.4
0.7
0.8
0.5
0.6
0.8
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
15
15
14
14
14
15
15
16
17
18
17
17
16
16
15
15
15
15
14
14
13
13
13

Feels Like (°C)

16
15
15
14
14
14
14
14
15
16
16
16
16
15
16
15
15
15
15
13
13
13
14
14

Dew Point (°C)

13
13
13
13
13
13
13
13
12
12
13
13
14
14
14
14
14
14
14
13
13
12
12
12

Relative Humidity (%)

82
85
90
90
90
92
89
85
78
71
73
79
83
86
87
90
90
92
93
93
93
92
92
92

Pressure (mb)

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

Ozone (du)

364
361
362
363
364
364
364
367
368
369
371
375
376
379
382
384
384
383
383
380
378
375
374
374

Sunday 3

Waning Gibbous 98%

23:44

06:39

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: 06:25, Set: 21:10, Transit: 13:48. Moon - Rise: 23:44, Set: 06:39. Civil Dark: 21:46 - 05:49. Nautical Dark: 22:32 - 05:03. Astro Dark: 23:27 - 04:08

Total Clouds (% Sky Obscured)

100
100
99
97
94
92
95
97
99
91
83
73
74
74
75
78
81
84
75
69
63
71
77
84

Low Clouds (% Sky Obscured)

78
85
93
87
80
74
73
76
80
72
64
55
54
51
49
55
63
70
54
37
21
28
35
42

Medium Clouds (% Sky Obscured)

79
71
64
73
82
91
91
92
93
85
77
68
66
63
60
73
81
84
75
69
63
71
51
30

High Clouds (% Sky Obscured)

96
93
90
62
30
0
30
61
91
61
30
0
0
0
5
5
5
9
9
28
57
62
74
80

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

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

Precipitation Probability (%)

78
69
58
47
40
36
31
24
12
29
35
39
41
40
37
48
59
55
48
51
38
27
19
13

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
12
12
12
12
12
12
12
13
13
13
13
13
18
18
17
18
18
18
15
15
15
14
14

Dew Point (°C)

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

Relative Humidity (%)

92
92
92
92
92
90
89
82
75
70
63
55
50
48
47
45
49
54
59
63
68
74
76
77

Pressure (mb)

1012
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013

Ozone (du)

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

Monday 4

Waning Gibbous 95%

00:46

07:13

Sun - Rise: 06:24, Set: 21:11, Transit: 13:47. Moon - Rise: 00:46, Set: 07:13. Civil Dark: 21:48 - 05:47. Nautical Dark: 22:34 - 05:01. Astro Dark: 23:30 - 04:05

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 Butry-sur-Oise, Val d'Oise, France (49.09,2.20)

Generated: 28/04/26 02:20:56. Forecast: 28/04/26 to 04/05/26. Timezone: UTC+2.00