Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 23

Waxing Gibbous 84%

17:44

01:57

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 OK
01 OK
02 OK
03 OK
04 OK
05 Bad
06 Bad
07 Bad

Sun - Rise: 06:07, Set: 19:47, Transit: 12:56. Moon - Rise: 17:44, Set: 01:57. Civil Dark: 20:18 - 05:35. Nautical Dark: 20:56 - 04:57. Astro Dark: 21:38 - 04:17

Total Clouds (% Sky Obscured)

89
92
93
100
100
96
72
96
85
60
46
36
21
41
28
61
28
31
31
29
33
70
52
39

Low Clouds (% Sky Obscured)

4
0
68
56
60
57
72
82
79
60
46
36
21
41
28
25
28
31
31
29
30
33
39
39

Medium Clouds (% Sky Obscured)

89
55
33
97
100
91
31
30
26
15
0
0
0
11
0
1
3
3
2
0
3
60
31
0

High Clouds (% Sky Obscured)

73
9
37
98
100
4
13
0
0
0
0
0
0
0
1
50
3
0
0
0
6
40
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
4
8
4
4
4
4
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

1
6
43
31
54
95
95
95
95
95
94
60
37
69
46
11
2
3
10
6
2
2
2
5

Precipitation Amount (mm)

0
0
0
0
0
0.8
0.6
1
1.1
0.5
0.5
0.2
0
0.4
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
20
21
23
23
23
23
23
22
22
22
21
20
19
18
18
17
17
17
17
17
16
16
16

Feels Like (°C)

17
19
21
22
22
22
22
23
23
23
24
22
22
22
21
20
18
19
19
18
18
17
15
17

Dew Point (°C)

13
14
13
15
16
17
16
15
17
18
19
18
18
18
17
17
16
16
15
15
15
15
15
14

Relative Humidity (%)

72
68
63
59
62
66
63
61
69
76
83
86
89
93
92
92
92
90
90
90
92
93
93
90

Pressure (mb)

1010
1010
1009
1009
1008
1008
1007
1007
1007
1006
1006
1007
1007
1008
1008
1008
1008
1008
1008
1009
1009
1009
1010
1010

Ozone (du)

323
322
321
320
320
322
322
321
320
321
321
322
324
325
327
328
331
337
339
338
339
341
342
344

Monday 24

Waxing Gibbous 91%

18:19

03:03

08 OK
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 OK
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: 06:08, Set: 19:45, Transit: 12:56. Moon - Rise: 18:19, Set: 03:03. Civil Dark: 20:16 - 05:37. Nautical Dark: 20:54 - 04:59. Astro Dark: 21:35 - 04:18

Total Clouds (% Sky Obscured)

34
59
81
83
75
80
86
28
47
52
61
100
100
100
100
100
100
98
98
98
95
98
98
89

Low Clouds (% Sky Obscured)

34
59
35
36
38
28
55
23
0
26
44
22
48
62
54
83
91
83
61
76
82
63
71
89

Medium Clouds (% Sky Obscured)

0
24
79
79
54
26
29
15
0
33
40
38
96
95
100
99
100
94
96
78
29
28
90
26

High Clouds (% Sky Obscured)

0
0
35
50
30
43
47
6
47
36
53
99
100
100
100
100
39
71
0
1
3
10
3
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
8
9
9
9
5
9
9
5
9
7
2
2
1
2
2
9
8
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
Very Light Rain
None
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
Very Light Rain
Very Light Rain

Precipitation Probability (%)

12
17
33
28
35
25
28
25
33
50
49
22
35
43
47
89
95
95
95
82
55
59
59
57

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0.7
1.5
2
1.4
0.4
0
0
0.3
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
18
19
20
21
22
22
23
22
22
21
20
18
18
17
17
17
16
16
16
16
16
16
16

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
76
69
69
66
64
59
54
52
52
75
82
83
86
90
93
95
98
98
98
98
98
96
96

Pressure (mb)

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

Ozone (du)

346
349
350
352
352
348
347
349
348
348
348
346
345
344
343
342
342
340
341
340
340
341
342
342

Tuesday 25

Waxing Gibbous 96%

18:47

04:13

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
07 Bad

Sun - Rise: 06:09, Set: 19:43, Transit: 12:56. Moon - Rise: 18:47, Set: 04:13. Civil Dark: 20:15 - 05:38. Nautical Dark: 20:52 - 05:00. Astro Dark: 21:33 - 04:20

Total Clouds (% Sky Obscured)

95
100
97
100
86
68
48
82
85
79
81
78
67
72
69
64
54
51
43
57
67
68
48
46

Low Clouds (% Sky Obscured)

88
100
88
73
59
56
28
36
47
48
42
42
39
29
52
63
22
31
34
36
38
41
43
45

Medium Clouds (% Sky Obscured)

33
31
35
30
22
7
8
4
16
29
35
43
37
39
45
43
38
31
30
28
21
17
14
9

High Clouds (% Sky Obscured)

59
1
2
62
65
0
1
80
85
76
57
2
2
10
2
0
2
1
2
2
4
1
0
0

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

58
51
55
49
58
60
47
33
54
68
71
14
6
3
1
1
2
1
1
0
0
0
0
0

Precipitation Amount (mm)

0.3
0.2
0
0
0
0.2
0
0
0
0.5
0.6
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
17
17
17
18
20
21
22
22
21
20
19
18
18
17
17
17
16
16
16
16
15
15
16

Feels Like (°C)

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

Dew Point (°C)

15
16
16
16
16
16
15
15
14
15
15
16
16
16
15
15
15
15
14
14
14
14
14
14

Relative Humidity (%)

93
93
93
95
86
76
70
67
61
69
70
82
88
89
88
89
89
90
90
92
90
90
90
89

Pressure (mb)

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

Ozone (du)

341
339
338
339
341
343
343
338
334
335
335
334
335
335
335
335
334
332
333
332
332
333
333
331

Wednesday 26

Waxing Gibbous 99%

19:10

05:23

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

Sun - Rise: 06:10, Set: 19:42, Transit: 12:55. Moon - Rise: 19:10, Set: 05:23. Civil Dark: 20:13 - 05:39. Nautical Dark: 20:50 - 05:02. Astro Dark: 21:31 - 04:22

Total Clouds (% Sky Obscured)

68
62
51
50
50
54
56
56
23
15
1
0
0
1
1
2
2
2
3
8
8
47
64
78

Low Clouds (% Sky Obscured)

42
41
36
44
50
54
44
28
7
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

7
5
3
7
11
15
11
7
3
2
1
0
0
0
0
0
0
0
1
1
2
8
15
24

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
2
2
2
2
4
5
43
60
77

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
1
5
22
9
2
0
0
0
0
0
0
0
0
1
1
0
1
1
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
7
7
8
9
9
9
9
8
7
6
5
4
4
4
4
4
3
3
3
3
3
3
3

Chance of Frost

Temperature (°C)

16
17
18
20
22
23
23
24
23
24
23
22
20
20
19
18
17
17
16
16
16
16
16
16

Feels Like (°C)

16
16
17
19
21
22
22
22
22
23
24
24
22
22
20
19
19
18
18
18
17
17
16
16

Dew Point (°C)

14
14
15
15
14
14
13
14
14
14
15
15
15
14
14
13
13
13
13
13
13
13
13
14

Relative Humidity (%)

83
82
80
71
62
57
53
53
56
55
59
67
71
70
72
74
76
77
79
81
81
82
85
85

Pressure (mb)

1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

329
327
325
324
323
321
320
319
317
316
315
315
315
316
316
316
315
314
313
313
313
311
312
311

Thursday 27

Waxing Gibbous 100%

19:30

06:33

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
07 Bad

Sun - Rise: 06:11, Set: 19:40, Transit: 12:55. Moon - Rise: 19:30, Set: 06:33. Civil Dark: 20:11 - 05:41. Nautical Dark: 20:48 - 05:03. Astro Dark: 21:28 - 04:23

Total Clouds (% Sky Obscured)

76
85
91
87
76
75
92
91
85
85
85
86
88
90
93
93
92
92
95
97
100
100
100
100

Low Clouds (% Sky Obscured)

10
21
30
20
10
0
0
0
1
14
18
27
18
9
0
15
31
46
53
59
65
73
80
87

Medium Clouds (% Sky Obscured)

35
45
55
46
39
32
39
42
46
44
35
67
58
49
38
35
33
31
43
53
65
72
79
89

High Clouds (% Sky Obscured)

56
42
27
45
61
75
89
85
76
71
65
59
63
71
77
79
85
92
95
97
100
100
100
100

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

1
1
0
0
0
0
0
0
5
18
37
62
65
59
56
55
57
61
77
93
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.3
0.3
0
0
0
0.2
0.3
0.5
0.7
1.1
1.1
1.1
1

Wind Speed/Direction (mph)

4
6
7
9
10
10
9
9
9
8
7
7
5
5
6
7
7
7
7
7
7
7
7
7

Chance of Frost

Temperature (°C)

17
19
21
23
24
25
26
27
27
27
25
24
22
22
22
21
21
21
21
21
20
19
19
19

Feels Like (°C)

19
20
21
22
23
25
26
26
25
26
26
25
24
24
24
24
24
24
23
23
22
21
21
21

Dew Point (°C)

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

Relative Humidity (%)

78
71
66
59
54
51
48
47
48
54
66
74
88
89
89
92
92
92
91
93
95
96
96
96

Pressure (mb)

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

Ozone (du)

311
310
310
308
307
308
309
309
309
308
310
309
311
311
311
312
312
313
314
314
314
315
315
316

Friday 28

Full Moon 99%

19:48

07:43

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 OK
01 OK
02 OK
03 Good
04 Good
05 Good
06 Good
07 Good

Sun - Rise: 06:13, Set: 19:38, Transit: 12:55. Moon - Rise: 19:48, Set: 07:43. Civil Dark: 20:09 - 05:42. Nautical Dark: 20:46 - 05:05. Astro Dark: 21:26 - 04:25

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
99
98
97
83
66
50
41
28
10
13
16
17
11
6
0
1
2
2

Low Clouds (% Sky Obscured)

83
80
77
69
61
54
62
70
79
62
44
27
18
10
1
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

92
95
96
96
97
98
85
73
61
48
33
24
18
8
1
1
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
99
98
96
63
34
12
9
5
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

8
8
9
9
9
8
8
6
4
2
4
6
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

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

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
95
95
95
74
40
31
19
0
1
0
0
0
0
0

Precipitation Amount (mm)

0.9
0.9
0.8
1.2
1.4
1.5
2.4
2.9
3.5
1.5
1.1
0.9
0.6
0.4
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
7
7
7
7
7
6
6
5
5
5
5
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

20
20
20
20
20
20
20
20
20
20
20
20
21
19
19
19
18
19
19
13
13
13
13
13

Dew Point (°C)

19
19
19
20
19
19
19
19
19
19
18
18
17
16
16
15
14
14
13
12
12
11
10
9

Relative Humidity (%)

96
95
95
95
93
95
95
93
91
91
92
95
95
95
95
93
93
92
92
90
89
87
83
77

Pressure (mb)

1012
1012
1012
1012
1012
1012
1011
1011
1011
1011
1012
1013
1014
1014
1015
1016
1016
1017
1017
1018
1018
1019
1019
1020

Ozone (du)

317
317
318
318
318
318
318
317
315
314
316
318
320
321
322
322
324
326
328
328
328
328
329
329

Saturday 29

Waning Gibbous 95%

20:05

No Set

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

Sun - Rise: 06:14, Set: 19:36, Transit: 12:54. Moon - Rise: 20:05, Set: No Set. Civil Dark: 20:07 - 05:43. Nautical Dark: 20:44 - 05:06. Astro Dark: 21:24 - 04:27

Total Clouds (% Sky Obscured)

4
5
6
16
26
32
30
29
25
36
52
58
58
53
54
44
37
31

Low Clouds (% Sky Obscured)

4
5
6
16
15
11
19
23
25
16
7
0
11
21
29
19
12
8

Medium Clouds (% Sky Obscured)

0
0
0
3
7
14
11
8
4
7
11
16
30
51
54
44
37
31

High Clouds (% Sky Obscured)

0
0
0
0
0
0
2
4
5
30
48
58
58
51
40
28
14
3

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
7
7
8
9
10
11
10
9
9
7
6
4
4
4
4
5
5

Chance of Frost

Temperature (°C)

13
15
16
17
18
19
19
19
20
20
19
18
17
16
16
16
15
15

Feels Like (°C)

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

Dew Point (°C)

9
9
8
8
8
8
8
9
9
9
10
10
10
9
10
9
10
10

Relative Humidity (%)

72
67
59
55
53
50
48
49
50
51
55
59
64
64
66
66
69
73

Pressure (mb)

1021
1021
1021
1022
1021
1021
1021
1020
1020
1020
1020
1020
1020
1020
1020
1020
1021
1021

Ozone (du)

330
333
337
340
339
338
338
338
338
338
337
336
335
334
333
332
330
328

Forecast for Le Vieux-Port, Montréal, Canada (45.50,-73.57)

Generated: 23/08/26 08:23:34. Forecast: 23/08/26 to 29/08/26. Timezone: UTC-4.00