Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 31

Waning Gibbous 81%

20:45

10:14

07 Bad
08 OK
09 Bad
10 Bad
11 OK
12 OK
13 Bad
14 OK
15 OK
16 OK
17 OK
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

Sun - Rise: 06:18, Set: 19:37, Transit: 12:57. Moon - Rise: 20:45, Set: 10:14. Civil Dark: 20:08 - 05:47. Nautical Dark: 20:46 - 05:10. Astro Dark: 21:26 - 04:30

Total Clouds (% Sky Obscured)

48
31
66
49
35
38
55
44
28
29
29
75
100
99
80
82
63
66
77
100
100
100
100
100

Low Clouds (% Sky Obscured)

31
16
27
19
23
32
48
33
19
21
14
11
11
9
3
10
0
0
4
29
34
28
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
14
41
34
71
77
81

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
9
65
100
99
80
61
50
64
67
100
100
100
100
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 (%)

71
70
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
1
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
1
2
1
3
4
5
6
6
5
3
2
1
2
2
2
3
3
3
3
3
3
4

Chance of Frost

Temperature (°C)

6
9
14
16
18
18
19
20
20
20
20
19
17
16
14
13
13
13
12
11
11
11
11
12

Feels Like (°C)

7
11
15
17
20
19
19
20
20
20
20
21
20
15
14
13
13
14
12
11
10
10
10
11

Dew Point (°C)

4
6
7
6
6
6
6
5
6
6
7
11
12
11
11
11
11
11
11
10
10
10
10
10

Relative Humidity (%)

88
80
62
51
45
43
41
38
38
40
42
58
71
75
82
87
89
92
95
95
96
95
92
87

Pressure (mb)

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

Ozone (du)

314
312
311
310
309
306
305
303
301
299
298
298
296
294
293
294
294
293
292
291
291
293
294
296

Tuesday 1

Waning Gibbous 72%

21:09

11:31

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
04 Bad
05 Bad
06 Bad

Sun - Rise: 06:19, Set: 19:35, Transit: 12:56. Moon - Rise: 21:09, Set: 11:31. Civil Dark: 20:06 - 05:48. Nautical Dark: 20:43 - 05:11. Astro Dark: 21:23 - 04:31

Total Clouds (% Sky Obscured)

100
100
100
90
100
95
56
54
70
99
100
100
100
98
97
71
59
55
88
93
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
26
45
49
59
74
90
48
32
31
33
43
67
80
98
100

Medium Clouds (% Sky Obscured)

74
66
88
81
100
80
56
54
63
98
100
100
100
93
60
11
28
26
12
0
1
1
0
0

High Clouds (% Sky Obscured)

100
100
100
84
75
53
3
2
17
40
67
63
0
0
0
0
0
0
27
31
40
50
50
83

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
4

Precipitation Type

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

Precipitation Probability (%)

0
3
10
19
16
27
26
35
43
62
58
45
50
15
0
0
0
0
0
0
0
0
1
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
0.2
0
0.5
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
9
6
5
3
3
2
1
1
1
2
5
6
6
7
7
9
10
9
9
10
12
12
12

Relative Humidity (%)

84
74
58
51
46
41
39
36
36
37
41
55
59
62
66
65
80
84
84
84
89
93
93
87

Pressure (mb)

1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

298
298
297
297
296
297
298
300
301
301
302
306
311
314
311
308
303
301
299
299
298
298
297
298

Wednesday 2

Waning Gibbous 61%

21:39

12:51

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
04 Bad
05 Bad
06 Bad

Sun - Rise: 06:21, Set: 19:33, Transit: 12:56. Moon - Rise: 21:39, Set: 12:51. Civil Dark: 20:04 - 05:50. Nautical Dark: 20:41 - 05:13. Astro Dark: 21:21 - 04:33

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)

100
99
89
92
89
91
100
96
88
93
84
81
81
85
100
100
100
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

66
71
91
74
81
97
100
99
70
96
100
100
100
100
83
70
67
59
62
71
78
67
73
79

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
36
4
4
16
0
0
30

ISS Passover

Visibility (miles)

9
9
9
9
9
9
3
3
0
0
2
2
0
0
0
0
0
3
2
0
0
0
0
0

Fog (%)

9
16
20
8
9
15
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

0
0
5
28
81
95
95
95
95
95
95
95
95
95
54
16
15
28
22
20
14
11
21
20

Precipitation Amount (mm)

0
0
0
0
0.7
1
2.2
1.7
1.4
2.6
1.7
0.8
1.7
0.9
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
14
15
16
16
16
16
16
16
16
16
17
17
16
16
16
15
15
15
15
15
15
15
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
87
87
87
87
90
96
98
98
98
98
100
98
100
98
98
96
96
98
100
100
98
98

Pressure (mb)

1018
1018
1018
1018
1018
1017
1017
1017
1016
1015
1014
1014
1013
1013
1013
1012
1012
1011
1011
1011
1010
1010
1010
1010

Ozone (du)

297
298
298
297
298
297
297
297
296
296
295
296
295
296
299
299
301
301
301
300
299
301
303
303

Thursday 3

Waning Gibbous 49%

22:20

14:11

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
04 Bad
05 Bad
06 Bad

Sun - Rise: 06:22, Set: 19:31, Transit: 12:56. Moon - Rise: 22:20, Set: 14:11. Civil Dark: 20:02 - 05:51. Nautical Dark: 20:39 - 05:14. Astro Dark: 21:19 - 04:35

Total Clouds (% Sky Obscured)

100
100
99
99
97
94
92
86
80
74
77
85
90
78
69
60
63
63
62
70
78
83
81
80

Low Clouds (% Sky Obscured)

100
99
97
96
88
81
78
81
80
74
77
85
85
78
68
60
63
63
62
70
77
81
80
80

Medium Clouds (% Sky Obscured)

85
53
46
41
39
38
35
62
43
11
10
10
9
7
4
2
2
2
0
5
11
16
12
6

High Clouds (% Sky Obscured)

19
2
2
9
15
18
35
22
2
6
43
31
57
19
10
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
1
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

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

Precipitation Probability (%)

19
28
12
10
12
20
38
44
22
6
5
4
1
1
1
0
1
0
0
0
7
3
6
18

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
98
98
98
96
96
100
98
100
98
98
98
100
98
98
98
98
98
98
98
96
96
96

Pressure (mb)

1010
1010
1010
1010
1010
1010
1010
1010
1009
1010
1010
1010
1010
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011

Ozone (du)

302
303
303
303
303
302
302
303
304
304
304
305
305
305
307
308
307
305
303
302
303
303
303
303

Friday 4

Third Quarter 46%

23:14

15:24

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
04 Bad
05 Bad
06 Bad

Sun - Rise: 06:23, Set: 19:29, Transit: 12:55. Moon - Rise: 23:14, Set: 15:24. Civil Dark: 20:00 - 05:52. Nautical Dark: 20:37 - 05:16. Astro Dark: 21:16 - 04:36

Total Clouds (% Sky Obscured)

79
78
76
76
80
84
86
87
89
88
90
91
93
93
94
94
96
97
98
98
97
95
96
98

Low Clouds (% Sky Obscured)

79
78
76
72
68
63
60
60
67
75
78
80
81
83
85
86
88
90
91
93
96
95
93
88

Medium Clouds (% Sky Obscured)

0
15
30
47
50
55
62
58
55
49
50
43
42
40
41
44
50
45
39
29
19
11
11
10

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
1
2
3
4
9
22
44
30
18
2
1
0

ISS Passover

Visibility (miles)

6
4
2
1
0
8
4
7
6
6
8
8
9
2
2
3
3
3
3
4
3
3
3
2

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

Precipitation Probability (%)

27
30
32
27
38
51
52
52
51
51
57
47
35
42
36
22
18
19
19
16
12
10
10
9

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
100
100
100
98
96
96
95
95
96
96
98
98
98
100
98
98
100
98
98
98
98
98

Pressure (mb)

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

Ozone (du)

305
308
310
311
310
309
310
311
312
314
312
312
312
312
313
314
315
315
315
315
315
315
315
315

Saturday 5

Waning Crescent 37%

00:22

16:26

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 OK
04 OK
05 OK
06 Bad

Sun - Rise: 06:24, Set: 19:27, Transit: 12:55. Moon - Rise: 00:22, Set: 16:26. Civil Dark: 19:58 - 05:54. Nautical Dark: 20:35 - 05:17. Astro Dark: 21:14 - 04:38

Total Clouds (% Sky Obscured)

98
99
99
100
80
69
57
48
42
41
52
57
62
59
56
49
51
48
55
50
40
45
40
54

Low Clouds (% Sky Obscured)

82
88
95
100
80
69
57
48
42
41
52
57
62
59
47
38
39
40
41
37
39
43
40
48

Medium Clouds (% Sky Obscured)

8
4
8
8
17
28
39
48
42
41
52
57
62
54
38
28
20
23
25
20
15
12
9
5

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
7
10
10
15
10
4
3

ISS Passover

Visibility (miles)

1
0
3
6
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 (%)

5
4
2
0
0
1
0
13
18
21
12
11
19
13
7
1
2
1
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
7
7
8
8
8
7
7
6
5
4
4
3
3
2
2
2
2
3
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
11
11
11
11
9
8
6
16
15
14
15
17
18
12
13
14
13
13
12
11
11
10
10

Dew Point (°C)

12
12
11
11
11
7
3
-1
0
1
2
4
6
8
8
9
8
8
7
7
7
6
6
6

Relative Humidity (%)

98
98
92
86
80
61
46
35
37
39
40
50
60
72
76
80
81
81
81
81
80
78
77
73

Pressure (mb)

1018
1019
1019
1019
1019
1019
1019
1019
1020
1020
1020
1021
1021
1022
1022
1022
1023
1023
1023
1024
1024
1024
1024
1025

Ozone (du)

315
315
315
316
316
318
320
321
321
321
321
321
322
322
322
322
322
322
322
323
321
319
317
315

Sunday 6

Waning Crescent 26%

01:41

17:15

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

Sun - Rise: 06:26, Set: 19:25, Transit: 12:55. Moon - Rise: 01:41, Set: 17:15. Civil Dark: 19:56 - 05:55. Nautical Dark: 20:33 - 05:18. Astro Dark: 21:11 - 04:40

Total Clouds (% Sky Obscured)

49
52
47
42
41
41
40
41
41
41
27
15
10
21
29
43
57
57
57

Low Clouds (% Sky Obscured)

45
42
43
42
41
41
40
41
41
41
27
14
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
1
10
22
33

High Clouds (% Sky Obscured)

5
5
7
1
1
0
0
0
0
0
1
5
7
9
12
15
14
14
14

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

12
12
15
17
18
20
20
21
22
22
21
19
17
15
15
14
13
13
13

Feels Like (°C)

10
9
15
15
15
16
17
18
23
22
22
22
23
24
13
13
13
13
13

Dew Point (°C)

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

Relative Humidity (%)

71
67
58
50
43
41
39
37
39
41
43
52
62
74
74
74
75
75
74

Pressure (mb)

1025
1025
1025
1025
1024
1024
1023
1023
1022
1022
1022
1022
1022
1023
1023
1023
1023
1023
1022

Ozone (du)

313
311
311
311
311
311
310
310
310
310
310
309
309
309
311
314
316
316
317

Forecast for Lac-Lajoie, Lanaudière, Canada (46.46,-74.31)

Generated: 31/08/26 06:31:36. Forecast: 31/08/26 to 06/09/26. Timezone: UTC-4.00