Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 15

Waning Crescent 30%

00:22

No Set

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 OK
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 07:04, Set: 19:35, Transit: 13:18. Moon - Rise: 00:22, Set: No Set. Civil Dark: 20:06 - 06:33. Nautical Dark: 20:43 - 05:56. Astro Dark: 21:21 - 05:18

Total Clouds (% Sky Obscured)

32
30
45
96
74
96
93
97
94
96
93
91
92
89
88
80
42
87
90
88
90
86
100
100

Low Clouds (% Sky Obscured)

28
30
45
85
51
87
89
92
88
90
87
86
85
86
86
73
42
66
70
70
52
54
54
39

Medium Clouds (% Sky Obscured)

20
30
32
40
26
27
28
42
54
58
42
39
16
3
1
0
0
0
0
13
59
35
59
63

High Clouds (% Sky Obscured)

0
3
5
25
24
3
0
0
0
3
2
3
55
65
6
24
0
62
55
70
66
79
100
100

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
11
15
2
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

60
68
95
95
75
56
63
59
52
37
22
10
17
4
4
4
2
1
3
2
5
2
6
5

Precipitation Amount (mm)

0.3
0.4
1.7
0.9
0.3
0
0.2
0.3
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

16
12
11
11
12
12
11
10
11
11
12
12
11
9
9
9
9
10
10
10
11
11
11
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

21
21
20
16
16
16
14
13
13
12
11
10
10
9
9
10
10
10
7
8
9
9
10
11

Dew Point (°C)

15
16
16
15
15
15
14
14
13
12
11
10
10
9
9
9
9
5
4
4
5
3
4
6

Relative Humidity (%)

74
82
89
93
95
96
95
95
95
90
87
86
86
86
84
86
83
69
64
61
59
54
53
59

Pressure (mb)

1017
1017
1017
1018
1019
1020
1020
1021
1021
1021
1022
1022
1022
1023
1023
1024
1024
1024
1024
1024
1023
1023
1023
1023

Ozone (du)

277
276
274
273
272
272
273
274
275
278
280
283
284
286
288
291
294
293
294
294
294
294
293
292

Tuesday 16

Waning Crescent 20%

01:38

17:26

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
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 07:05, Set: 19:33, Transit: 13:18. Moon - Rise: 01:38, Set: 17:26. Civil Dark: 20:04 - 06:34. Nautical Dark: 20:41 - 05:58. Astro Dark: 21:18 - 05:20

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
100
100
93
82
91
88
94
94
95
90
91
91
94
83
74
52

Low Clouds (% Sky Obscured)

31
21
23
25
51
64
34
27
21
14
10
6
2
2
3
28
32
28
39
42
39
45
25
45

Medium Clouds (% Sky Obscured)

75
91
99
67
63
37
36
25
35
59
52
40
72
51
71
88
89
80
84
82
92
79
71
52

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
97
99
100
83
62
64
51
45
46
39
18
3
7
4
0
2
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 (%)

4
6
3
2
1
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)

10
9
7
5
6
6
7
7
6
5
5
5
5
5
5
4
4
4
4
4
4
5
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
66
70
69
73
76
72
77
77
78
78
78
78
81
82
80
73
68
61
59
62
63
68
63

Pressure (mb)

1023
1023
1024
1024
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1024
1024
1024

Ozone (du)

293
292
294
294
290
287
285
283
281
277
275
273
271
270
268
267
264
263
262
261
261
260
261
260

Wednesday 17

Waning Crescent 12%

02:56

17:58

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

Sun - Rise: 07:06, Set: 19:31, Transit: 13:18. Moon - Rise: 02:56, Set: 17:58. Civil Dark: 20:02 - 06:36. Nautical Dark: 20:38 - 05:59. Astro Dark: 21:16 - 05:22

Total Clouds (% Sky Obscured)

54
35
39
60
28
29
5
4
5
5
0
0
0
0
0
0
0
0
1
3
0
0
0
0

Low Clouds (% Sky Obscured)

2
3
26
31
19
7
1
1
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

54
35
39
60
24
17
2
2
2
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

2
2
0
0
0
0
0
0
0
2
0
0
0
0
0
0
0
0
0
2
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
5
5
5
6
5
5
4
4
4
4
4
4
4
4
4
3
2
3
4
5
6
5
5

Chance of Frost

Temperature (°C)

16
16
15
12
11
11
12
12
11
11
11
10
10
10
10
11
14
19
20
21
22
22
22
22

Feels Like (°C)

16
16
15
12
10
11
12
13
12
12
11
11
11
11
11
12
15
21
22
23
24
24
24
24

Dew Point (°C)

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

Relative Humidity (%)

71
74
78
72
72
75
79
81
80
80
77
77
78
80
81
77
70
63
61
58
57
56
56
58

Pressure (mb)

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

Ozone (du)

260
262
261
260
260
259
259
259
259
259
259
259
260
260
261
261
261
260
259
257
257
256
255
256

Thursday 18

Waning Crescent 6%

04:12

18:22

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
13 Good
14 Good
15 Good
16 Good

Sun - Rise: 07:08, Set: 19:29, Transit: 13:17. Moon - Rise: 04:12, Set: 18:22. Civil Dark: 20:00 - 06:37. Nautical Dark: 20:36 - 06:01. Astro Dark: 21:14 - 05:23

Total 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

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
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
1

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
4
2
3
4
4
4
4
4
4
4
3
3
3
3
3
2
2
3
3
3
4
4
4

Chance of Frost

Temperature (°C)

22
19
18
16
15
14
13
12
11
11
11
11
11
11
11
10
13
15
18
19
20
22
22
22

Feels Like (°C)

25
23
21
19
17
16
16
14
14
13
13
13
13
13
13
13
16
18
21
23
24
26
26
26

Dew Point (°C)

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

Relative Humidity (%)

64
77
82
86
86
87
89
89
90
90
90
91
91
91
91
91
86
80
73
68
64
60
60
60

Pressure (mb)

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

Ozone (du)

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

Friday 19

Waning Crescent 2%

05:26

18:41

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

Sun - Rise: 07:09, Set: 19:27, Transit: 13:17. Moon - Rise: 05:26, Set: 18:41. Civil Dark: 19:58 - 06:38. Nautical Dark: 20:34 - 06:02. Astro Dark: 21:11 - 05:25

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
47
56
56
45
23
23
16
12
8
4
4
5
9

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
3
56
32
13
6
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
35
50
50
36
7
11
16
12
8
4
4
5
9

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 (%)

1
3
0
0
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

26
25
22
20
19
18
18
17
17
17
17
16
14
14
14
14
15
16
17
18
19
20
28
27

Dew Point (°C)

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

Relative Humidity (%)

63
76
83
87
89
90
90
89
90
90
92
90
90
89
89
87
82
74
70
66
64
60
62
63

Pressure (mb)

1023
1023
1023
1024
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023
1023
1024
1023
1023
1022
1021
1020
1020
1019

Ozone (du)

252
252
252
253
253
254
254
254
254
253
252
251
251
252
251
251
251
251
251
250
250
250
250
249

Saturday 20

Waning Crescent 0%

06:36

18:56

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

Sun - Rise: 07:10, Set: 19:25, Transit: 13:17. Moon - Rise: 06:36, Set: 18:56. Civil Dark: 19:56 - 06:40. Nautical Dark: 20:32 - 06:04. Astro Dark: 21:09 - 05:26

Total Clouds (% Sky Obscured)

13
19
23
34
47
62
54
46
36
47
53
54
51
52
58
44
29
9
30
48
68
48
34
21

Low Clouds (% Sky Obscured)

0
0
0
13
23
35
26
15
7
5
2
0
0
0
0
0
0
0
1
3
4
9
15
21

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
2
2
5

High Clouds (% Sky Obscured)

13
19
23
28
20
22
24
26
27
42
53
54
51
52
58
44
29
9
30
46
60
35
14
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 (%)

2
2
0
2
2
1
2
2
0
1
1
0
0
0
0
0
0
0
2
5
3
8
10
5

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
2
2
4
4
4
5
5
5
6
5
5
5
5
5
5
4
4
6
7
7
8
8
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

27
27
27
27
19
19
19
19
19
19
17
16
15
15
16
16
15
15
16
17
18
19
23
23

Dew Point (°C)

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

Relative Humidity (%)

64
70
77
83
86
87
89
83
78
73
73
73
71
74
76
78
72
65
60
58
58
56
61
65

Pressure (mb)

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

Ozone (du)

249
249
249
249
249
248
248
248
248
248
249
250
252
252
253
254
254
254
254
255
256
256
256
256

Sunday 21

New Moon 0%

07:45

19:11

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

Sun - Rise: 07:12, Set: 19:23, Transit: 13:16. Moon - Rise: 07:45, Set: 19:11. Civil Dark: 19:54 - 06:41. Nautical Dark: 20:30 - 06:05. Astro Dark: 21:07 - 05:28

Total Clouds (% Sky Obscured)

32
41
50
40
30
20
29
41
56
42
24
7
25
44
64
63
65
66
77
89
100

Low Clouds (% Sky Obscured)

22
18
14
14
14
14
12
10
8
6
4
1
1
1
1
7
12
16
29
41
54

Medium Clouds (% Sky Obscured)

11
23
32
25
18
5
4
3
2
2
2
2
10
17
27
49
65
66
77
89
92

High Clouds (% Sky Obscured)

26
41
50
40
24
5
15
29
40
28
15
6
24
40
57
53
49
45
62
78
95

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
None
None
None
None
None
None
None
None

Precipitation Probability (%)

21
30
32
29
24
16
12
8
1
1
1
0
0
0
0
1
2
0
20
31
41

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

23
23
22
22
15
15
17
17
17
16
16
15
15
15
15
14
15
16
17
18
19

Dew Point (°C)

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

Relative Humidity (%)

70
76
82
89
90
90
92
93
93
93
95
95
96
96
96
96
93
89
86
85
85

Pressure (mb)

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

Ozone (du)

256
257
258
259
259
259
259
259
259
260
259
259
258
259
259
260
260
259
259
260
260

Forecast for Lettenboden, Bezirk Pfäffikon, Switzerland (47.38,8.92)

Generated: 15/09/25 17:28:38. Forecast: 15/09/25 to 21/09/25. Timezone: UTC+2.00