Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 4

Waxing Gibbous 100%

15:46

05:28

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

Sun - Rise: 06:43, Set: 16:34, Transit: 11:38. Moon - Rise: 15:46, Set: 05:28. Civil Dark: 17:06 - 06:11. Nautical Dark: 17:42 - 05:35. Astro Dark: 18:17 - 05:00

Total Clouds (% Sky Obscured)

90
97
96
91
56
74
74
34
87
59
38
39
45
64
48
12
1
1
1
3
4
26
100
100

Low Clouds (% Sky Obscured)

90
93
69
63
56
74
63
34
81
59
32
38
44
64
48
12
1
1
1
2
2
2
2
0

Medium Clouds (% Sky Obscured)

26
5
4
2
0
0
14
0
7
0
0
1
0
0
0
0
0
0
0
0
0
14
91
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
3
4
26
100
100

ISS Passover

Visibility (miles)

1
9
6
9
7
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
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
20
7
17
21
23
31
21
3
12
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
10
11
13
14
14
15
15
15
15
14
13
12
12
11
11
11
10
8
7
5
4
4
3

Chance of Frost

Temperature (°C)

2
1
2
2
2
2
4
4
4
4
4
3
2
2
2
1
1
1
0
0
0
-1
-1
-0

Feels Like (°C)

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

Dew Point (°C)

1
-1
1
-0
-1
-1
-0
-1
-1
0
0
-1
-1
-1
-2
-2
-2
-2
-2
-2
-1
-2
-2
-2

Relative Humidity (%)

96
86
93
86
80
83
76
75
73
76
76
77
80
81
80
81
80
83
88
89
91
92
89
89

Pressure (mb)

1006
1007
1007
1008
1009
1009
1009
1009
1009
1009
1010
1011
1012
1013
1013
1014
1014
1014
1014
1014
1015
1015
1015
1015

Ozone (du)

333
328
321
320
322
325
326
328
326
323
318
316
316
314
313
311
308
305
302
300
298
298
297
298

Wednesday 5

Full Moon 99%

16:14

06:57

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
02 Bad
03 Bad
04 Bad

Sun - Rise: 06:44, Set: 16:33, Transit: 11:38. Moon - Rise: 16:14, Set: 06:57. Civil Dark: 17:05 - 06:12. Nautical Dark: 17:41 - 05:36. Astro Dark: 18:16 - 05:01

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
100
100
100
100
100
100
100
100
90

Low Clouds (% Sky Obscured)

2
20
27
12
36
43
77
91
91
92
100
100
99
100
98
96
94
87
84
93
91
100
100
90

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
92
100
100
100
100
100
100
98
30
0

High Clouds (% Sky Obscured)

100
100
100
100
96
100
100
65
100
100
100
100
100
100
65
0
6
75
80
80
80
90
8
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
5
3
0
0
0
0
0
0
0
0
0
0
0
0
4
8
7

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
11
27
53
100
98
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
Snow
Light Rain
Light Rain
Light Rain
Light Rain
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
3
37
77
94
95
95
95
95
95
95
93
73
59
54
38
28
11
12
8

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.5
0.7
0.5
0.8
1.7
1.3
1.1
1.1
0.7
0.4
0.2
0.3
0.1
0
0
0
0

Wind Speed/Direction (mph)

3
3
3
3
5
7
8
8
4
4
4
4
3
2
2
4
6
8
11
12
14
13
14
13

Chance of Frost

Temperature (°C)

0
0
0
0
2
2
3
3
2
2
1
1
-0
-0
0
-0
-0
-0
-0
-0
0
-0
-0
-1

Feels Like (°C)

-3
-3
-3
-3
-2
-2
-1
-1
-1
-1
-2
-2
-3
-2
-3
-3
-4
-4
-5
-5
-6
-6
-6
-7

Dew Point (°C)

-1
-2
-2
-3
-2
-1
-1
0
0
2
1
1
-1
-0
-0
-1
-1
-1
-1
-1
-1
-1
-3
-3

Relative Humidity (%)

89
88
89
81
78
79
77
80
89
98
98
100
98
100
98
98
98
98
98
98
96
92
83
84

Pressure (mb)

1014
1014
1013
1013
1011
1010
1009
1007
1006
1004
1003
1002
1001
1000
999
998
998
998
998
999
1001
1002
1003
1005

Ozone (du)

298
297
296
297
299
300
301
301
300
301
303
303
306
307
313
319
326
333
338
342
350
355
361
363

Thursday 6

Waning Gibbous 95%

16:52

08:27

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

Sun - Rise: 06:45, Set: 16:31, Transit: 11:38. Moon - Rise: 16:52, Set: 08:27. Civil Dark: 17:03 - 06:13. Nautical Dark: 17:39 - 05:37. Astro Dark: 18:15 - 05:02

Total Clouds (% Sky Obscured)

86
91
84
92
86
88
97
99
100
93
70
36
26
36
28
81
92
91
91
90
92
95
100
96

Low Clouds (% Sky Obscured)

82
90
78
84
81
88
97
99
100
80
70
36
26
36
28
30
33
20
14
2
2
4
38
33

Medium Clouds (% Sky Obscured)

3
0
0
9
0
4
0
0
0
0
0
0
0
0
0
0
3
61
55
72
75
77
80
82

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
45
58
40
43
50
67
82
100
83

ISS Passover

Visibility (miles)

9
7
5
9
8
8
8
6
8
6
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
8
2
5
13
18
16
13
7
16
8
7
1
1
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
13
12
13
12
12
12
11
10
10
9
8
8
7
6
5
6
6
6
6
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
86
84
84
82
79
74
71
69
74
73
72
79
81
84
84
87
87
81
81
81
79
81
81

Pressure (mb)

1007
1008
1010
1011
1012
1012
1013
1013
1014
1014
1015
1016
1016
1017
1017
1017
1018
1017
1017
1017
1017
1016
1016
1016

Ozone (du)

366
368
370
377
379
377
372
377
375
367
363
355
346
343
339
336
332
330
327
325
323
323
322
322

Friday 7

Waning Gibbous 89%

17:43

09:51

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
02 Bad
03 Bad
04 Bad

Sun - Rise: 06:47, Set: 16:30, Transit: 11:38. Moon - Rise: 17:43, Set: 09:51. Civil Dark: 17:02 - 06:15. Nautical Dark: 17:38 - 05:39. Astro Dark: 18:14 - 05:03

Total Clouds (% Sky Obscured)

90
85
90
95
100
100
100
100
100
100
100
100
99
99
99
99
99
99
99
99
99
99
99
99

Low Clouds (% Sky Obscured)

47
46
70
86
100
99
98
99
98
98
99
98
98
99
98
98
98
99
99
99
99
99
99
99

Medium Clouds (% Sky Obscured)

84
85
90
95
100
100
100
100
87
57
57
55
54
54
53
90
67
85
32
30
24
19
20
17

High Clouds (% Sky Obscured)

60
15
47
73
100
100
100
100
100
100
100
68
37
5
5
15
15
25
25
25
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
1
0
0
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8

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

Precipitation Probability (%)

0
1
27
54
83
61
41
48
57
56
58
72
78
88
71
68
61
55
41
24
29
40
46
36

Precipitation Amount (mm)

0
0
0
0.2
0.6
0.3
0.1
0.2
0.2
0.2
0.2
0.4
0.5
0.6
0.3
0.3
0.2
0.2
0
0
0
0
0.1
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
82
82
89
92
92
91
94
94
96
96
98
98
98
96
98
98
98
98
98
98
98
98
96

Pressure (mb)

1015
1015
1014
1013
1012
1011
1010
1009
1007
1005
1004
1003
1002
1001
1000
999
998
997
997
996
996
996
997
997

Ozone (du)

322
322
323
321
322
323
324
322
321
321
321
321
324
325
326
325
323
320
320
321
323
324
324
324

Saturday 8

Waning Gibbous 80%

18:49

11:03

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

Sun - Rise: 06:48, Set: 16:29, Transit: 11:39. Moon - Rise: 18:49, Set: 11:03. Civil Dark: 17:01 - 06:16. Nautical Dark: 17:37 - 05:40. Astro Dark: 18:12 - 05:05

Total Clouds (% Sky Obscured)

100
97
99
97
97
41
31
22
17
13
12
17
19
42
36
27
20
21
23
28
51
72
90
94

Low Clouds (% Sky Obscured)

100
97
99
96
95
41
31
22
17
13
12
17
19
16
14
13
13
10
8
6
5
4
5
3

Medium Clouds (% Sky Obscured)

9
0
0
0
0
0
0
0
2
3
6
10
12
24
36
27
20
21
23
28
51
72
88
89

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
2
14
26
20
21
23
1
33
66
90
94

ISS Passover

Visibility (miles)

0
3
7
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 (%)

20
8
7
6
4
4
4
1
1
2
0
1
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-0
-1
-3
-3
-4
-5
-6
-5
-6
-7
-7
-6
-6
-6
-7
-7
-7
-7
-7
-7
-7
-8
-8
-8

Relative Humidity (%)

96
96
91
87
84
77
70
68
66
62
66
79
92
92
92
92
92
94
94
94
92
90
87
84

Pressure (mb)

998
1000
1001
1003
1004
1005
1006
1006
1006
1007
1008
1009
1011
1012
1012
1013
1013
1014
1014
1015
1015
1015
1015
1015

Ozone (du)

323
322
323
325
322
319
320
322
322
323
320
317
318
318
319
320
322
323
324
324
324
323
322
321

Sunday 9

Waning Gibbous 70%

20:05

11:57

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
02 Bad
03 Bad
04 Bad

Sun - Rise: 06:50, Set: 16:27, Transit: 11:39. Moon - Rise: 20:05, Set: 11:57. Civil Dark: 17:00 - 06:18. Nautical Dark: 17:36 - 05:41. Astro Dark: 18:11 - 05:06

Total Clouds (% Sky Obscured)

97
98
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
95

Low Clouds (% Sky Obscured)

2
0
0
0
0
22
44
66
68
70
73
81
89
97
98
99
100
100
99
99
98
98
99
95

Medium Clouds (% Sky Obscured)

92
94
96
98
100
100
100
100
95
89
85
90
95
100
99
100
100
100
100
100
100
100
98
65

High Clouds (% Sky Obscured)

97
98
99
100
100
100
99
92
89
92
100
93
86
80
56
30
7
11
16
21
36
52
67
44

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
7
6
4
5
7
8
6
3
0
0
0
0

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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

0
0
0
0
0
0
0
0
3
5
6
21
32
43
52
59
63
73
85
94
84
68
49
47

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.2
0.3
0.3
0.4
0.5
0.6
0.5
0.3
0.1
0.1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
89
92
80
70
62
60
58
57
62
69
75
81
84
89
89
89
89
91
90
94
92
89
89

Pressure (mb)

1016
1016
1016
1016
1016
1016
1016
1015
1014
1014
1014
1014
1014
1014
1014
1013
1013
1012
1011
1011
1010
1010
1010
1010

Ozone (du)

323
324
325
325
324
323
323
323
323
323
324
324
324
323
323
322
322
322
322
322
321
325
328
331

Monday 10

Waning Gibbous 66%

21:24

12:36

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

Sun - Rise: 06:51, Set: 16:26, Transit: 11:39. Moon - Rise: 21:24, Set: 12:36. Civil Dark: 16:59 - 06:19. Nautical Dark: 17:35 - 05:43. Astro Dark: 18:10 - 05:07

Total Clouds (% Sky Obscured)

90
86
78
70
61
74
86
98
97
97
96
81
68
61
65
73
77
84
90
97

Low Clouds (% Sky Obscured)

89
84
78
70
61
74
86
97
95
93
90
70
52
31
34
33
36
50
68
82

Medium Clouds (% Sky Obscured)

32
1
0
0
0
0
0
0
1
1
2
2
2
1
1
1
1
5
9
14

High Clouds (% Sky Obscured)

24
10
7
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

3
6
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

Precipitation Type

Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

43
37
30
24
16
17
16
11
11
10
8
6
4
1
4
4
2
5
6
3

Precipitation Amount (mm)

0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
9
11
12
12
13
13
13
13
12
12
12
12
11
11
11
11
11
11
10

Chance of Frost

Temperature (°C)

-6
-7
-8
-8
-8
-8
-7
-7
-6
-6
-7
-7
-7
-7
-8
-7
-7
-7
-7
-7

Feels Like (°C)

-8
-8
-8
-13
-13
-14
-14
-14
-14
-12
-13
-13
-13
-13
-14
-13
-13
-13
-13
-13

Dew Point (°C)

-8
-10
-11
-13
-14
-15
-15
-15
-16
-15
-14
-13
-12
-12
-11
-10
-10
-9
-9
-9

Relative Humidity (%)

84
79
75
68
62
57
52
49
45
50
57
63
67
71
77
79
80
85
83
85

Pressure (mb)

1010
1011
1011
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

339
347
355
361
368
374
377
380
383
382
381
381
381
382
383
383
382
382
381
381

Forecast for Lac-Saint-Louis, Lanaudière, Canada (46.57,-73.80)

Generated: 04/11/25 05:32:58. Forecast: 04/11/25 to 10/11/25. Timezone: UTC-5.00