Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 17

Waning Crescent 20%

03:18

18:33

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

Sun - Rise: 07:32, Set: 19:59, Transit: 13:45. Moon - Rise: 03:18, Set: 18:33. Civil Dark: 20:31 - 07:01. Nautical Dark: 21:08 - 06:23. Astro Dark: 21:48 - 05:44

Total Clouds (% Sky Obscured)

100
99
75
31
24
26
24
5
6
10
25
24
22
0
0
0
0
0
0
0
21
8
0
0

Low Clouds (% Sky Obscured)

0
53
40
31
24
26
24
5
6
10
25
24
22
0
0
0
0
0
0
0
21
8
0
0

Medium Clouds (% Sky Obscured)

74
49
30
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)

2
2
2
2
2
0
0
3
2
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
7
8
10
9
10
10
10
9
7
5
5
5
5
4
4
3
3
3
3
3
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
8
10
11
6
5
5
5
5
5
5
4
4
4
4
4
4
4
5
6
6
6
6
6

Relative Humidity (%)

61
61
62
56
38
32
31
31
33
35
39
40
42
43
45
46
49
50
54
58
60
62
64
57

Pressure (mb)

1023
1024
1023
1023
1022
1022
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1023
1023
1023

Ozone (du)

257
256
255
256
257
258
258
258
259
260
261
262
263
262
261
258
257
256
257
256
256
255
254
254

Thursday 18

Waning Crescent 12%

04:36

18:54

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

Sun - Rise: 07:34, Set: 19:57, Transit: 13:45. Moon - Rise: 04:36, Set: 18:54. Civil Dark: 20:28 - 07:02. Nautical Dark: 21:06 - 06:25. Astro Dark: 21:45 - 05:46

Total Clouds (% Sky Obscured)

26
7
37
43
73
68
38
64
47
30
21
0
0
0
1
0
2
1
4
11
20
10
1
6

Low Clouds (% Sky Obscured)

26
7
37
43
73
68
38
64
47
30
21
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
2
2
2
2
0
0
0
1
0
2
1
4
11
18
9
1
6

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

Chance of Frost

Temperature (°C)

16
19
21
22
23
24
25
25
24
23
22
20
19
18
17
16
16
15
15
14
14
13
13
14

Feels Like (°C)

17
18
21
22
23
24
24
25
24
23
22
19
18
17
17
16
16
15
15
13
14
13
13
14

Dew Point (°C)

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

Relative Humidity (%)

48
40
34
31
30
28
26
26
24
24
25
24
25
26
26
28
30
31
33
35
37
40
43
40

Pressure (mb)

1024
1024
1024
1023
1023
1023
1022
1022
1022
1022
1022
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022
1021
1022
1022

Ozone (du)

254
253
252
251
252
253
254
254
254
254
255
255
255
254
253
252
251
251
251
251
251
252
254
254

Friday 19

Waning Crescent 6%

05:51

19:11

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

Sun - Rise: 07:35, Set: 19:55, Transit: 13:44. Moon - Rise: 05:51, Set: 19:11. Civil Dark: 20:26 - 07:04. Nautical Dark: 21:04 - 06:26. Astro Dark: 21:43 - 05:47

Total Clouds (% Sky Obscured)

1
0
0
0
4
45
2
6
5
4
0
35
93
100
74
48
62
77
88
92
96
100
100
100

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
2
5
4
0
35
62
83
74
48
62
77
88
87
87
53
87
84

High Clouds (% Sky Obscured)

1
0
0
0
2
22
2
6
5
4
0
35
91
92
34
25
41
51
74
82
91
100
87
97

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
1
2
3
9
14
23
31
26

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

Chance of Frost

Temperature (°C)

18
20
22
24
26
27
28
29
28
26
24
22
21
20
20
19
19
20
19
19
20
20
20
20

Feels Like (°C)

16
20
22
24
25
27
27
28
26
24
22
22
19
18
17
16
17
18
17
17
17
18
20
20

Dew Point (°C)

3
5
5
5
5
3
2
1
1
1
0
-1
-2
-2
-2
-2
-0
1
2
5
6
9
10
12

Relative Humidity (%)

38
36
32
29
25
21
18
17
17
19
21
22
21
22
22
23
26
29
31
37
42
48
53
59

Pressure (mb)

1022
1021
1021
1020
1020
1019
1019
1018
1017
1017
1017
1018
1018
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

255
255
256
256
257
258
260
259
258
258
259
258
256
255
255
254
254
254
254
255
257
258
259
260

Saturday 20

Waning Crescent 2%

07:03

19:25

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
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 07:37, Set: 19:52, Transit: 13:44. Moon - Rise: 07:03, Set: 19:25. Civil Dark: 20:24 - 07:05. Nautical Dark: 21:01 - 06:28. Astro Dark: 21:40 - 05:49

Total Clouds (% Sky Obscured)

100
63
56
48
45
83
100
100
100
96
100
100
100
100
100
100
99
99
98
99
99
100
100
99

Low Clouds (% Sky Obscured)

0
0
0
0
16
31
47
50
53
56
59
63
67
69
71
75
48
25
4
4
4
3
17
34

Medium Clouds (% Sky Obscured)

83
22
20
17
28
34
41
52
65
76
61
80
69
78
82
89
91
94
81
91
56
95
79
93

High Clouds (% Sky Obscured)

90
63
42
13
42
71
100
100
100
91
98
77
100
100
100
100
97
93
90
92
96
100
100
99

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
4
3
3
9
2
9
9
9
8
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
Very Light Rain
Light Rain
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

33
32
42
44
32
36
59
95
95
95
95
95
93
88
95
65
31
21
17
40
42
21
26
21

Precipitation Amount (mm)

0
0
0.2
0.4
0
0
0.3
0.6
1.1
1.6
1.1
0.8
0.5
0.4
0.7
0.3
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
22
24
25
27
26
26
26
24
22
20
20
19
18
17
17
16
16
15
15
15
14
14
14

Feels Like (°C)

21
21
24
25
25
26
24
24
22
20
20
18
18
16
16
16
16
14
13
14
13
14
13
13

Dew Point (°C)

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

Relative Humidity (%)

55
54
44
38
36
35
33
33
32
33
38
45
80
83
79
85
83
81
82
83
83
80
79
73

Pressure (mb)

1016
1016
1015
1014
1013
1013
1012
1012
1011
1012
1012
1012
1013
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1016

Ozone (du)

260
260
260
259
258
257
256
257
256
258
257
257
257
259
259
260
261
264
265
265
267
266
267
267

Sunday 21

New Moon 0%

08:14

19:38

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

Sun - Rise: 07:38, Set: 19:50, Transit: 13:44. Moon - Rise: 08:14, Set: 19:38. Civil Dark: 20:22 - 07:07. Nautical Dark: 20:59 - 06:29. Astro Dark: 21:38 - 05:51

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
99
71
50
30
55
49
43
53
63
73
70
65
60
62
62
64
74
85

Low Clouds (% Sky Obscured)

50
57
61
65
61
56
50
32
19
2
45
43
39
47
55
63
58
51
45
46
49
53
53
51

Medium Clouds (% Sky Obscured)

98
98
99
100
100
99
99
71
50
30
21
10
0
6
20
36
39
36
33
38
40
41
36
30

High Clouds (% Sky Obscured)

100
100
100
100
72
40
10
5
0
0
0
0
0
0
0
0
0
0
0
2
4
5
35
68

ISS Passover

Visibility (miles)

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

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 (%)

9
13
21
17
37
40
10
5
4
3
9
14
17
25
33
41
42
42
41
46
48
50
50
56

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

66
60
59
61
52
61
65
56
51
52
58
64
71
79
82
83
84
87
89
89
89
89
89
84

Pressure (mb)

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

Ozone (du)

268
267
268
267
267
269
271
273
274
277
281
282
283
284
286
289
291
294
296
299
301
303
306
305

Monday 22

Waxing Crescent 1%

09:24

19:50

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
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 07:40, Set: 19:48, Transit: 13:43. Moon - Rise: 09:24, Set: 19:50. Civil Dark: 20:20 - 07:08. Nautical Dark: 20:57 - 06:31. Astro Dark: 21:36 - 05:53

Total Clouds (% Sky Obscured)

96
98
98
97
98
99
100
100
100
100
100
100
100
100
100
100
100
100
100
99
98
97
98
98

Low Clouds (% Sky Obscured)

46
43
39
34
38
42
50
41
36
32
52
76
100
92
84
76
74
72
69
74
79
85
85
85

Medium Clouds (% Sky Obscured)

18
37
53
66
74
83
94
86
75
66
69
72
78
60
44
30
23
17
15
20
29
38
39
39

High Clouds (% Sky Obscured)

96
98
98
97
95
85
60
45
40
45
55
65
70
65
60
65
50
45
45
40
40
35
27
20

ISS Passover

Visibility (miles)

4
5
4
4
3
3
3
3
3
2
2
4
7
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
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
Very Light Rain
None
None
Very Light Rain
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

63
66
68
71
79
88
95
95
95
95
91
86
75
63
45
21
46
59
57
66
89
95
87
69

Precipitation Amount (mm)

0.4
0.5
0.4
0.4
0.5
0.5
0.5
0.9
1
0.7
0.6
0.6
0.8
0.5
0.2
0
0
0.3
0
0.3
0.7
1.1
0.6
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
14
15
16
17
16
16
15
14
14
14
13
13
13
13
13
13
13
13
12
12
12
12
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
76
72
67
64
71
75
83
86
89
90
89
87
86
84
83
83
80
79
77
75
73
72
69

Pressure (mb)

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

Ozone (du)

305
305
306
306
307
310
312
314
314
313
313
314
316
317
318
318
318
317
317
316
315
314
313
312

Tuesday 23

Waxing Crescent 3%

No Rise

20:03

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: 07:41, Set: 19:46, Transit: 13:43. Moon - Rise: No Rise, Set: 20:03. Civil Dark: 20:17 - 07:10. Nautical Dark: 20:55 - 06:32. Astro Dark: 21:33 - 05:54

Total Clouds (% Sky Obscured)

99
90
84
77
87
94
95
91
82
78
74
71
68
66
69
63

Low Clouds (% Sky Obscured)

84
72
59
47
40
33
26
32
38
45
45
44
44
45
46
47

Medium Clouds (% Sky Obscured)

34
29
22
18
8
3
0
1
2
3
2
4
4
9
15
19

High Clouds (% Sky Obscured)

14
12
7
0
13
23
35
30
30
20
20
15
15
20
20
15

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
None
None

Precipitation Probability (%)

50
32
19
1
3
1
0
9
24
37
73
86
82
78
51
8

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.4
0.5
0.4
0.4
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
14
15
17
18
18
19
20
19
18
17
17
16
15
15
14

Feels Like (°C)

10
11
11
11
11
17
17
17
17
18
18
15
15
14
14
14

Dew Point (°C)

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

Relative Humidity (%)

67
63
53
44
36
36
37
37
42
46
52
55
57
60
64
68

Pressure (mb)

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

Ozone (du)

311
310
312
313
314
314
315
315
314
314
314
313
313
313
313
313

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

Generated: 17/09/25 10:08:17. Forecast: 17/09/25 to 23/09/25. Timezone: UTC+2.00