Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 25

Waxing Gibbous 89%

18:25

02:18

06 Good
07 Good
08 Good
09 Good
10 Good
11 Good
12 OK
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

Sun - Rise: 05:41, Set: 20:38, Transit: 13:09. Moon - Rise: 18:25, Set: 02:18. Civil Dark: 21:13 - 05:06. Nautical Dark: 21:57 - 04:22. Astro Dark: 22:51 - 03:29

Total Clouds (% Sky Obscured)

0
0
0
5
8
14
38
52
49
59
77
55
98
100
100
100
97
100
100
98
88
98
88
61

Low Clouds (% Sky Obscured)

0
0
0
5
8
0
0
18
31
40
38
0
0
0
0
3
5
5
5
5
0
22
16
25

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
10
22
20
20
0
0
0
1
3
3
42
67
42
71
54
54
52
53

High Clouds (% Sky Obscured)

0
0
0
0
0
14
22
4
5
17
68
55
98
100
100
100
90
99
100
82
81
90
72
43

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
9
7
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
1
18
28
25
24
12
22

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
4
3
4
5
6
7
7
8
9
10
9
7
6
4
3
2
2
2
2
1
1
2
2

Chance of Frost

Temperature (°C)

14
16
19
21
22
24
26
27
28
28
28
28
27
26
24
22
21
21
21
20
19
19
18
18

Feels Like (°C)

16
17
21
22
24
25
26
28
29
28
27
27
27
26
24
22
21
21
20
20
20
20
19
20

Dew Point (°C)

10
11
13
14
14
15
15
15
14
13
14
16
17
18
17
16
15
14
14
15
17
16
16
16

Relative Humidity (%)

78
75
69
64
59
56
51
46
42
39
40
47
52
63
66
67
66
63
64
72
85
86
88
86

Pressure (mb)

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

Ozone (du)

341
341
340
337
335
331
329
328
326
324
322
320
319
319
319
319
319
318
319
321
322
323
328
334

Sunday 26

Waxing Gibbous 94%

19:14

03:15

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
05 Bad

Sun - Rise: 05:42, Set: 20:37, Transit: 13:09. Moon - Rise: 19:14, Set: 03:15. Civil Dark: 21:12 - 05:07. Nautical Dark: 21:56 - 04:23. Astro Dark: 22:49 - 03:31

Total Clouds (% Sky Obscured)

97
55
78
62
73
70
72
88
92
97
94
96
95
93
53
52
52
23
25
55
86
96
99
98

Low Clouds (% Sky Obscured)

7
13
33
35
36
31
46
42
38
68
44
37
9
35
6
0
0
0
0
40
71
90
96
93

Medium Clouds (% Sky Obscured)

94
39
63
47
56
45
45
33
41
47
43
75
87
49
27
43
52
23
25
50
58
68
74
75

High Clouds (% Sky Obscured)

53
38
35
5
61
46
10
45
45
40
40
40
33
39
21
3
14
23
25
6
5
47
50
50

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
6
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
31

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Light Rain
None
None
None
None
None

Precipitation Probability (%)

6
9
6
10
15
23
25
16
19
19
18
35
30
12
40
24
23
48
69
45
39
35
25
21

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.6
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
19
20
21
23
23
24
25
25
26
26
26
24
23
22
21
20
20
19
18
18
18
18
18

Feels Like (°C)

20
19
23
23
25
25
26
27
26
27
28
27
26
25
24
23
22
21
21
19
19
19
19
19

Dew Point (°C)

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

Relative Humidity (%)

89
88
82
76
65
59
55
51
49
49
48
51
71
74
79
85
82
85
92
96
95
93
95
95

Pressure (mb)

1013
1013
1013
1013
1012
1012
1012
1011
1011
1010
1010
1009
1009
1009
1009
1009
1010
1009
1009
1009
1009
1009
1009
1009

Ozone (du)

336
338
336
334
334
335
334
332
331
328
327
326
324
321
320
320
322
321
321
322
323
324
326
326

Monday 27

Waxing Gibbous 98%

19:54

04:19

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
05 Bad

Sun - Rise: 05:43, Set: 20:36, Transit: 13:09. Moon - Rise: 19:54, Set: 04:19. Civil Dark: 21:10 - 05:09. Nautical Dark: 21:54 - 04:25. Astro Dark: 22:47 - 03:33

Total Clouds (% Sky Obscured)

90
68
76
81
85
87
83
83
82
78
87
97
87
53
56
62
62
66
68
66
64
67
67
76

Low Clouds (% Sky Obscured)

90
68
61
66
70
67
67
61
52
59
50
45
42
35
55
62
56
66
61
44
44
41
38
43

Medium Clouds (% Sky Obscured)

56
27
29
30
31
35
44
36
36
16
24
16
13
19
43
40
31
45
38
17
18
36
34
22

High Clouds (% Sky Obscured)

23
11
28
49
54
53
3
53
54
57
81
96
78
40
40
40
40
37
45
35
30
25
25
43

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
3
1
7
9
6
3
5
9
9
9
9

Fog (%)

31
22
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
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Light Rain
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

0
1
1
45
57
64
73
72
60
82
73
88
95
95
93
59
72
77
51
48
55
40
26
26

Precipitation Amount (mm)

0
0
0
0.4
0.4
0.3
0.3
0.4
0
0.5
0.4
0.8
0.6
0.8
0.9
0.2
0.3
0.4
0.3
0.4
0.3
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
18
19
21
23
24
24
25
26
27
27
27
26
24
21
20
20
19
19
19
18
18
18
18

Feels Like (°C)

19
20
23
24
25
25
26
27
29
30
30
29
28
28
22
20
21
20
20
20
19
19
19
19

Dew Point (°C)

17
17
18
19
18
17
17
18
18
17
17
16
17
20
20
19
19
19
18
18
17
17
17
17

Relative Humidity (%)

96
95
91
86
75
67
64
63
61
56
53
51
59
76
92
96
95
96
96
95
95
95
95
95

Pressure (mb)

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

Ozone (du)

327
329
328
328
328
329
329
329
330
331
330
329
328
328
329
330
330
329
330
330
330
330
332
333

Tuesday 28

Waxing Gibbous 100%

20:26

05:26

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
05 Bad

Sun - Rise: 05:44, Set: 20:35, Transit: 13:09. Moon - Rise: 20:26, Set: 05:26. Civil Dark: 21:09 - 05:10. Nautical Dark: 21:53 - 04:26. Astro Dark: 22:44 - 03:35

Total Clouds (% Sky Obscured)

85
94
90
93
98
98
98
100
100
100
96
97
95
99
100
100
100
96
90
90
91
91
92
99

Low Clouds (% Sky Obscured)

49
54
63
60
52
45
38
30
33
35
37
46
55
64
53
45
38
32
33
34
34
31
27
31

Medium Clouds (% Sky Obscured)

32
16
3
0
0
5
12
19
18
18
16
25
35
45
50
50
50
52
54
51
53
55
57
52

High Clouds (% Sky Obscured)

58
76
75
78
86
86
90
91
90
90
90
96
95
99
100
100
100
96
90
90
90
86
80
94

ISS Passover

Visibility (miles)

9
7
9
9
9
9
9
9
9
9
9
9
4
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
Light Rain
Light Rain
None
None
None
Light Rain
None
None
None
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

19
15
22
7
4
28
60
86
78
54
41
54
82
67
60
63
63
54
46
35
39
36
31
42

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.5
0.4
0
0
0
0.4
0
0
0
0.2
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
19
20
21
23
24
26
26
27
27
27
27
26
24
22
21
21
20
20
20
19
19
19
18

Feels Like (°C)

19
20
22
24
25
27
28
29
30
31
31
30
28
28
25
23
22
22
22
23
22
22
21
21

Dew Point (°C)

17
18
19
19
20
19
19
20
21
21
20
20
20
22
21
20
19
19
19
19
18
18
18
18

Relative Humidity (%)

95
95
93
89
81
72
67
68
72
70
63
65
69
88
91
91
92
93
93
95
93
95
95
95

Pressure (mb)

1006
1006
1006
1006
1006
1006
1005
1005
1004
1004
1004
1004
1004
1004
1004
1005
1005
1005
1005
1005
1005
1005
1005
1005

Ozone (du)

334
336
336
337
337
336
334
334
333
332
332
332
333
333
331
332
335
336
336
333
333
335
334
334

Wednesday 29

Full Moon 100%

20:52

No Set

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
05 Bad

Sun - Rise: 05:45, Set: 20:33, Transit: 13:09. Moon - Rise: 20:52, Set: No Set. Civil Dark: 21:08 - 05:11. Nautical Dark: 21:51 - 04:28. Astro Dark: 22:42 - 03:37

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
98
81
85
100
99
91
80
67
71
81
95
82
77
74
81

Low Clouds (% Sky Obscured)

36
43
40
37
35
23
12
0
7
14
20
21
31
30
27
27
21
34
45
49
54
63
72
73

Medium Clouds (% Sky Obscured)

44
36
42
45
48
47
47
47
53
54
55
52
53
50
48
37
35
35
34
34
36
38
44
53

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
98
81
76
82
70
64
58
56
41
33
29
32
41
55
75

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 (%)

45
26
41
42
20
34
34
17
31
27
12
22
40
38
49
38
25
28
25
21
32
36
27
38

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

Chance of Frost

Temperature (°C)

18
19
20
21
22
23
24
26
26
27
27
27
26
23
21
21
20
19
20
20
20
19
19
18

Feels Like (°C)

19
19
20
21
22
23
24
25
26
26
26
28
28
25
23
23
23
23
23
23
23
22
22
22

Dew Point (°C)

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

Relative Humidity (%)

93
93
89
85
76
68
58
49
43
40
39
41
54
70
79
82
86
88
88
86
85
86
86
86

Pressure (mb)

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

Ozone (du)

333
333
334
334
335
334
334
334
333
334
336
335
335
337
341
340
340
340
339
339
339
342
345
349

Thursday 30

Waning Gibbous 97%

21:13

06:35

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 OK
01 OK
02 OK
03 OK
04 OK
05 OK

Sun - Rise: 05:46, Set: 20:32, Transit: 13:09. Moon - Rise: 21:13, Set: 06:35. Civil Dark: 21:06 - 05:12. Nautical Dark: 21:50 - 04:29. Astro Dark: 22:40 - 03:39

Total Clouds (% Sky Obscured)

82
80
80
80
70
73
72
76
76
76
83
85
84
80
74
68
57
52
44
39
37
38
35
27

Low Clouds (% Sky Obscured)

73
74
74
74
70
73
72
76
69
52
42
36
29
22
26
21
13
15
16
19
20
20
35
27

Medium Clouds (% Sky Obscured)

56
54
60
61
57
48
44
45
55
60
65
69
68
62
53
48
34
21
9
0
0
0
0
0

High Clouds (% Sky Obscured)

75
80
80
80
70
69
60
65
67
73
74
61
38
14
16
14
12
8
5
1
1
1
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
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

44
48
48
39
17
23
25
25
24
21
18
14
9
0
1
2
1
2
2
1
2
2
1
2

Precipitation Amount (mm)

0
0.2
0.2
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
5
4
5
5
6
6
6
7
7
6
6
5
4
3
3
2
2
2
2
2
3
3
3

Chance of Frost

Temperature (°C)

19
19
19
21
22
23
24
24
25
25
26
26
25
23
22
21
20
20
19
18
18
17
17
16

Feels Like (°C)

21
20
19
22
22
22
23
24
24
28
28
27
28
29
30
21
22
23
22
22
22
19
19
19

Dew Point (°C)

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

Relative Humidity (%)

84
78
75
68
61
55
50
47
42
42
40
40
47
56
66
65
64
62
67
70
73
76
78
82

Pressure (mb)

1010
1011
1011
1011
1012
1012
1012
1011
1011
1011
1011
1011
1011
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1012

Ozone (du)

348
347
346
344
341
339
339
338
338
338
339
339
339
339
339
339
339
340
340
341
341
339
337
335

Friday 31

Waning Gibbous 93%

21:32

07:45

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

Sun - Rise: 05:48, Set: 20:31, Transit: 13:09. Moon - Rise: 21:32, Set: 07:45. Civil Dark: 21:05 - 05:14. Nautical Dark: 21:48 - 04:31. Astro Dark: 22:38 - 03:41

Total Clouds (% Sky Obscured)

14
0
11
23
35
44
53
60
60
57
56
39
20
0
12
24
35
43
51
60

Low Clouds (% Sky Obscured)

14
0
10
20
30
33
36
39
41
42
44
30
15
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
1
2
3
10
16
20
20
16
16
13
7
0
8
19
29
33
36
41

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
5
4
4
3
4
0
4
4
4
10
14
13

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
19
20
22
24
25
27
28
29
29
30
30
28
27
25
24
22
21
20
19

Feels Like (°C)

18
18
18
24
24
25
26
27
28
32
32
30
31
32
32
26
26
26
24
24

Dew Point (°C)

14
14
15
15
15
16
15
15
15
15
15
15
16
17
19
17
16
15
15
14

Relative Humidity (%)

79
75
72
66
59
54
50
46
42
41
40
39
47
56
66
67
68
70
72
73

Pressure (mb)

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

Ozone (du)

333
331
329
328
327
326
325
324
323
323
323
323
323
322
322
323
324
325
325
325

Forecast for ByWard Market, Ottawa, Canada (45.42,-75.69)

Generated: 25/07/26 06:53:08. Forecast: 25/07/26 to 31/07/26. Timezone: UTC-4.00