Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 17

Waning Crescent 12%

02:58

18:00

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

Sun - Rise: 07:08, Set: 19:33, Transit: 13:20. Moon - Rise: 02:58, Set: 18:00. Civil Dark: 20:04 - 06:37. Nautical Dark: 20:40 - 06:01. Astro Dark: 21:18 - 05:23

Total Clouds (% Sky Obscured)

75
80
81
93
69
38
79
63
80
43
27
11
9
13
17
7
2
2
11
0
0
0
0
0

Low Clouds (% Sky Obscured)

75
76
68
39
11
0
33
46
55
24
15
0
0
0
3
0
0
2
11
0
0
0
0
0

Medium Clouds (% Sky Obscured)

75
80
81
92
65
38
70
51
66
30
22
11
9
13
17
7
2
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

8
3
4
5
3
0
0
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
51
58
100
100
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)

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

Chance of Frost

Temperature (°C)

16
17
17
18
17
17
16
15
14
14
12
12
11
11
11
10
10
10
9
10
13
16
18
20

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
73
67
64
72
66
78
74
76
75
84
86
88
90
90
91
91
93
91
87
75
66
57
51

Pressure (mb)

1026
1026
1025
1025
1024
1024
1024
1025
1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1025

Ozone (du)

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

Thursday 18

Waning Crescent 6%

04:14

18:24

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

Sun - Rise: 07:09, Set: 19:31, Transit: 13:19. Moon - Rise: 04:14, Set: 18:24. Civil Dark: 20:02 - 06:38. Nautical Dark: 20:38 - 06:02. Astro Dark: 21:16 - 05:25

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
4
7
5
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
0
0
0
0
0
3
3
6
3
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)

2
2
3
3
2
2
2
2
1
2
1
1
2
2
2
2
2
2
2
2
1
1
1
2

Chance of Frost

Temperature (°C)

22
24
24
24
24
23
20
18
16
15
14
13
13
12
11
11
10
10
9
10
12
16
18
21

Feels Like (°C)

25
26
27
27
27
26
23
20
18
17
17
16
15
13
13
13
12
12
11
12
15
18
21
24

Dew Point (°C)

10
11
12
12
13
15
15
13
13
12
13
12
11
10
10
10
9
9
9
9
10
11
12
13

Relative Humidity (%)

47
45
44
44
48
62
70
74
79
83
89
89
90
90
91
93
93
93
95
93
84
74
66
59

Pressure (mb)

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

Ozone (du)

260
260
261
261
261
260
260
260
260
259
257
257
257
257
257
256
256
255
255
255
256
255
253
254

Friday 19

Waning Crescent 2%

05:27

18:42

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

Sun - Rise: 07:10, Set: 19:29, Transit: 13:19. Moon - Rise: 05:27, Set: 18:42. Civil Dark: 19:59 - 06:40. Nautical Dark: 20:36 - 06:04. Astro Dark: 21:13 - 05:26

Total Clouds (% Sky Obscured)

0
0
0
7
18
8
65
65
7
34
35
28
32
30
30
28
33
98
75
63
29
30
35
88

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
14
22
22
15
7
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
13
23
23
32
30
30
28
25
35
43
32
21
10
11
12

High Clouds (% Sky Obscured)

0
0
0
4
13
6
55
50
7
34
35
28
32
30
16
10
12
50
69
57
29
27
35
85

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
19
69
69
69
69
69
69
69
69
69
69
69

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
1
1
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
2
2

Chance of Frost

Temperature (°C)

23
24
25
26
26
25
22
20
18
16
15
15
14
14
14
14
13
13
13
13
16
19
21
23

Feels Like (°C)

26
28
29
29
29
28
25
21
19
19
19
18
18
17
17
16
16
16
13
15
18
22
24
26

Dew Point (°C)

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

Relative Humidity (%)

54
51
49
49
52
66
74
80
83
87
90
92
92
92
93
92
95
93
93
93
83
72
64
58

Pressure (mb)

1025
1024
1024
1023
1023
1023
1023
1023
1024
1024
1024
1024
1024
1023
1023
1023
1022
1022
1022
1022
1021
1021
1020
1020

Ozone (du)

254
255
255
254
255
255
256
256
256
255
254
253
253
254
253
253
253
253
252
251
251
251
251
251

Saturday 20

Waning Crescent 0%

06:38

18:58

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

Sun - Rise: 07:12, Set: 19:27, Transit: 13:19. Moon - Rise: 06:38, Set: 18:58. Civil Dark: 19:57 - 06:41. Nautical Dark: 20:34 - 06:05. Astro Dark: 21:11 - 05:28

Total Clouds (% Sky Obscured)

50
51
48
48
77
59
11
21
35
77
70
49
78
54
84
93
52
52
72
89
64
56
88
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
2
3
6
9
12
19
22
28
28
29
30
30
30
31
75
92

Medium Clouds (% Sky Obscured)

14
16
18
20
14
8
2
10
17
22
23
24
28
37
41
47
50
45
40
34
45
48
54
54

High Clouds (% Sky Obscured)

50
50
48
48
71
52
7
20
35
77
70
49
78
54
84
93
52
46
49
72
58
56
67
67

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 (%)

69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69

Precipitation Type

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
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
1
4
9
1
6
7
6
21
32
28
45
50
50
72
92

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
0.3
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

25
26
26
27
27
26
23
22
21
20
19
19
18
18
18
17
17
17
16
17
17
18
19
18

Feels Like (°C)

26
29
30
30
31
28
25
25
24
23
21
21
21
19
20
18
18
19
19
18
18
19
19
18

Dew Point (°C)

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

Relative Humidity (%)

52
48
46
45
49
62
70
73
77
80
84
85
88
88
89
89
89
89
90
89
81
72
65
64

Pressure (mb)

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

Ozone (du)

251
251
251
251
250
249
248
248
249
249
249
249
249
250
250
250
251
251
251
252
253
254
255
257

Sunday 21

New Moon 0%

07:47

19:12

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
10 Bad
11 Bad
12 Bad

Sun - Rise: 07:13, Set: 19:25, Transit: 13:18. Moon - Rise: 07:47, Set: 19:12. Civil Dark: 19:55 - 06:43. Nautical Dark: 20:31 - 06:06. Astro Dark: 21:09 - 05:29

Total Clouds (% Sky Obscured)

100
100
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)

92
92
91
91
91
90
92
93
95
96
95
93
92
91
91
91
91
93
95
97
98
100
98
96

Medium Clouds (% Sky Obscured)

55
84
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
95
93
96
98
100
100
100

High Clouds (% Sky Obscured)

92
98
57
62
100
100
100
100
100
100
100
100
100
100
100
100
100
99
98
95
92
93
97
97

ISS Passover

Visibility (miles)

9
9
8
9
9
9
9
8
7
1
1
1
2
5
6
8
9
9
9
9
9
9
9
8

Fog (%)

69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69

Precipitation Type

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

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0.9
1.3
1.4
1.4
1.1
1
1.2
1.5
2.2
3.5
3.6
2.6
2
1.4
0.9
0.5
1
1.2
1.5
0.7
0.9
1.8
0
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
16
17
17
17
16
16
14
15
14
14
15
14
13
13
14
14
13
14
14
11
12
12
12

Dew Point (°C)

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

Relative Humidity (%)

69
73
89
93
93
93
95
96
98
100
100
100
98
98
96
98
96
96
98
98
95
95
95
95

Pressure (mb)

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

Ozone (du)

257
257
257
257
257
257
258
258
259
260
260
261
261
263
264
265
267
268
269
270
271
272
273
273

Monday 22

Waxing Crescent 0%

08:55

19:26

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
10 Bad
11 Bad
12 Bad

Sun - Rise: 07:14, Set: 19:23, Transit: 13:18. Moon - Rise: 08:55, Set: 19:26. Civil Dark: 19:53 - 06:44. Nautical Dark: 20:29 - 06:08. Astro Dark: 21:06 - 05:31

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
95

Low Clouds (% Sky Obscured)

95
94
93
92
95
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
96
92

Medium Clouds (% Sky Obscured)

100
91
82
73
78
83
79
77
76
75
67
66
57
55
54
55
52
50
52
54
56
56
51
45

High Clouds (% Sky Obscured)

90
93
96
100
100
100
100
100
100
100
77
53
35
40
40
45
40
39
37
20
10
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69

Precipitation Type

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

Precipitation Probability (%)

95
85
77
66
57
51
50
48
48
47
43
41
32
42
46
48
50
53
57
52
47
42
44
46

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
11
11
11
11
11
11
12

Feels Like (°C)

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

Dew Point (°C)

12
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11

Relative Humidity (%)

96
95
95
95
96
95
95
95
95
96
96
96
96
96
96
96
96
98
96
98
96
96
96
95

Pressure (mb)

1016
1016
1016
1016
1015
1015
1015
1015
1015
1014
1014
1014
1014
1014
1013
1013
1013
1013
1013
1014
1014
1015
1015
1015

Ozone (du)

274
275
276
276
276
277
278
279
279
278
278
279
279
280
281
282
283
284
286
287
289
291
293
294

Tuesday 23

Waxing Crescent 3%

10:03

19:41

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

Sun - Rise: 07:16, Set: 19:21, Transit: 13:18. Moon - Rise: 10:03, Set: 19:41. Civil Dark: 19:51 - 06:45. Nautical Dark: 20:27 - 06:09. Astro Dark: 21:04 - 05:32

Total Clouds (% Sky Obscured)

93
90
88
84
91
94
96
95
94
93
95
96
98
98
98
99
99
100
100

Low Clouds (% Sky Obscured)

89
89
88
84
91
94
95
95
94
91
91
91
92
93
95
97
98
99
100

Medium Clouds (% Sky Obscured)

40
50
63
78
63
51
36
36
39
42
43
44
47
44
41
37
43
48
54

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
13
25
31
24
21
18
14
9
2
20
39
61

ISS Passover

Visibility (miles)

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

Fog (%)

69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69
69

Precipitation Type

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

Precipitation Probability (%)

46
55
60
62
59
54
45
47
50
54
51
45
37
42
43
43
51
58
70

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
95
96
95
96
96
95
96
96
96
96
96
95
96
96
96
98
98
98

Pressure (mb)

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

Ozone (du)

294
294
294
294
294
294
294
295
295
296
296
298
299
301
303
306
308
310
312

Forecast for Rümlang, Dielsdorf, Switzerland (47.45,8.53)

Generated: 17/09/25 13:00:28. Forecast: 17/09/25 to 23/09/25. Timezone: UTC+2.00