Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 17

Waning Crescent 14%

03:14

16:44

01 Good
02 OK
03 OK
04 OK
05 Bad
06 OK
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: 07:23, Set: 18:12, Transit: 12:47. Moon - Rise: 03:14, Set: 16:44. Civil Dark: 18:42 - 06:53. Nautical Dark: 19:16 - 06:18. Astro Dark: 19:51 - 05:44

Total Clouds (% Sky Obscured)

12
32
27
47
57
19
61
65
79
98
97
84
100
100
100
100
92
100
97
96
95
96
85
84

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
1
11

Medium Clouds (% Sky Obscured)

0
1
2
2
4
4
40
41
22
19
2
0
0
3
0
4
38
26
41
62
71
96
75
51

High Clouds (% Sky Obscured)

12
32
27
47
57
12
61
65
74
96
97
83
100
100
100
100
92
100
92
90
87
68
15
23

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
3
3
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)

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

Chance of Frost

Temperature (°C)

4
3
2
3
2
2
2
2
5
8
9
11
12
13
13
13
12
10
9
8
8
8
8
7

Feels Like (°C)

3
-1
-2
-1
-1
-1
0
-1
2
5
6
8
9
10
10
10
9
8
7
6
6
5
5
5

Dew Point (°C)

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

Relative Humidity (%)

66
65
65
67
68
69
73
68
58
48
42
38
36
34
35
36
41
47
51
54
54
54
55
58

Pressure (mb)

1019
1019
1019
1019
1020
1020
1020
1020
1020
1020
1020
1019
1018
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

293
294
294
294
294
295
296
295
295
296
297
296
294
294
293
294
291
288
287
285
286
286
286
286

Saturday 18

Waning Crescent 8%

04:22

17:00

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
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:24, Set: 18:10, Transit: 12:47. Moon - Rise: 04:22, Set: 17:00. Civil Dark: 18:40 - 06:54. Nautical Dark: 19:15 - 06:20. Astro Dark: 19:49 - 05:46

Total Clouds (% Sky Obscured)

97
98
99
100
98
99
100
100
90
100
92
92
100
100
100
87
83
80
94
97
78
100
77
100

Low Clouds (% Sky Obscured)

53
73
79
78
68
72
77
73
88
87
28
15
11
28
36
27
6
10
1
8
14
0
0
0

Medium Clouds (% Sky Obscured)

96
96
83
97
79
89
79
95
74
94
45
67
48
72
88
48
49
71
78
40
23
40
29
16

High Clouds (% Sky Obscured)

34
13
55
100
61
80
58
55
44
71
47
58
91
100
68
77
56
13
90
94
50
100
53
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 (%)

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
2
4
1
2
2
14
2
0
0
0
0
0
0
2
1
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
5
5
5
5
5
5
6
6
7
8
9
10
11
12
12
13
12
11
9
9
9
8
8

Dew Point (°C)

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

Relative Humidity (%)

58
54
54
60
62
68
71
71
75
69
67
53
52
44
46
48
52
60
59
64
69
72
74
80

Pressure (mb)

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

Ozone (du)

285
285
286
287
287
287
286
285
286
286
285
283
283
281
281
281
283
282
277
277
276
274
275
274

Sunday 19

Waning Crescent 3%

05:28

17:16

01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Good
08 Good
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: 07:25, Set: 18:09, Transit: 12:47. Moon - Rise: 05:28, Set: 17:16. Civil Dark: 18:39 - 06:55. Nautical Dark: 19:13 - 06:21. Astro Dark: 19:47 - 05:47

Total Clouds (% Sky Obscured)

100
94
100
99
100
60
9
13
58
81
66
59
62
65
100
100
69
99
100
98
100
100
98
97

Low Clouds (% Sky Obscured)

35
49
56
60
65
3
0
0
38
4
0
0
48
58
59
55
11
0
30
44
72
81
82
78

Medium Clouds (% Sky Obscured)

77
38
82
37
50
4
2
13
57
41
30
13
36
48
76
69
0
62
75
75
100
98
91
84

High Clouds (% Sky Obscured)

100
86
100
95
99
60
4
6
4
59
61
59
34
50
100
100
57
98
100
98
98
100
58
40

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
0
0
0
0
0
0
0
0
0
0
0
0
2
5
6
2
0
0
18
26
30
42
47

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
5
4
5
5
6
6
6
8
9
10
11
13
14
14
14
13
14
13
12
13
12
13
13

Chance of Frost

Temperature (°C)

9
9
9
10
9
10
9
9
11
14
17
20
23
24
24
23
23
22
21
20
19
19
19
18

Feels Like (°C)

7
7
7
7
7
7
7
9
10
12
13
16
19
21
21
18
18
18
17
16
16
16
15
15

Dew Point (°C)

6
6
6
6
6
6
7
7
6
6
6
8
9
9
10
10
11
11
12
12
12
12
12
12

Relative Humidity (%)

80
77
78
78
81
80
85
85
71
58
49
44
40
39
41
42
46
49
56
59
62
62
63
69

Pressure (mb)

1012
1012
1011
1011
1010
1010
1009
1009
1009
1008
1007
1005
1004
1003
1002
1002
1001
1001
1001
1001
1001
1000
1000
1000

Ozone (du)

278
275
276
276
276
276
275
275
274
273
273
271
271
270
270
269
269
268
268
268
270
271
272
273

Monday 20

Waning Crescent 1%

06:33

17:32

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
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 OK
23 OK
00 OK

Sun - Rise: 07:27, Set: 18:07, Transit: 12:47. Moon - Rise: 06:33, Set: 17:32. Civil Dark: 18:37 - 06:57. Nautical Dark: 19:11 - 06:22. Astro Dark: 19:46 - 05:48

Total Clouds (% Sky Obscured)

94
94
95
96
98
99
100
100
93
94
99
99
98
99
99
100
91
83
72
59
52
45
45
40

Low Clouds (% Sky Obscured)

83
87
92
96
98
99
100
100
92
91
93
88
85
88
86
92
85
78
68
58
52
45
40
40

Medium Clouds (% Sky Obscured)

72
55
35
2
33
59
74
82
56
37
45
91
28
52
98
59
14
7
1
1
1
0
0
0

High Clouds (% Sky Obscured)

15
20
30
40
40
40
0
0
0
0
14
32
47
49
34
1
0
0
0
0
0
1
17
1

ISS Passover

Visibility (miles)

9
9
9
9
9
4
9
7
5
9
9
8
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
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

39
42
34
32
93
92
82
83
75
56
59
72
35
14
12
5
5
23
13
4
18
1
3
3

Precipitation Amount (mm)

0
0
0
0
0.7
0.6
0.4
0.4
0.3
0
0
0.6
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
12
14
13
13
12
12
11
10
9
9
9
9
8
8
8
8
8
8
7
7
6
6
5

Relative Humidity (%)

70
71
83
82
85
89
92
90
87
79
76
80
86
84
81
80
80
80
80
80
80
80
80
75

Pressure (mb)

999
1000
1000
1000
1000
1001
1001
1001
1002
1003
1004
1004
1006
1006
1008
1008
1009
1010
1011
1011
1012
1012
1012
1012

Ozone (du)

273
272
275
279
280
285
292
303
308
310
307
303
300
296
293
293
288
288
290
287
283
282
279
276

Tuesday 21

New Moon 0%

07:39

17:50

01 Good
02 Good
03 OK
04 OK
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: 07:28, Set: 18:05, Transit: 12:47. Moon - Rise: 07:39, Set: 17:50. Civil Dark: 18:35 - 06:58. Nautical Dark: 19:10 - 06:23. Astro Dark: 19:44 - 05:49

Total Clouds (% Sky Obscured)

16
10
40
45
51
51
52
55
58
69
66
62
62
85
78
75
61
45
35
39
43
47
53
59

Low Clouds (% Sky Obscured)

10
0
1
1
2
3
4
10
25
35
27
28
25
53
56
60
40
20
0
8
15
23
33
42

Medium Clouds (% Sky Obscured)

0
6
6
45
20
51
52
4
58
69
66
62
62
75
55
39
36
40
35
39
43
47
50
48

High Clouds (% Sky Obscured)

0
2
40
35
20
20
20
25
30
30
0
0
55
25
12
0
0
0
0
6
15
23
46
53

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
6
9
9
9
9
9
9
8
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
12
16
4
44
40
39
36
32
39
37
37
40
43
45
41
37

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

Chance of Frost

Temperature (°C)

9
8
7
6
6
5
5
5
7
9
11
12
13
13
14
15
15
14
13
12
11
10
9
9

Feels Like (°C)

7
7
5
4
4
3
2
2
4
6
7
9
10
10
11
12
12
12
10
10
8
8
7
7

Dew Point (°C)

4
3
3
3
3
3
3
3
4
5
5
5
6
8
10
10
11
10
9
9
8
8
7
7

Relative Humidity (%)

70
70
76
82
85
88
88
89
82
75
68
61
62
71
73
72
73
75
77
80
83
84
87
87

Pressure (mb)

1012
1012
1012
1012
1012
1012
1011
1011
1010
1010
1009
1008
1007
1006
1006
1005
1005
1006
1006
1007
1007
1007
1007
1007

Ozone (du)

273
271
272
273
274
276
275
274
275
277
280
282
281
286
288
290
292
295
298
300
302
304
305
310

Wednesday 22

Waxing Crescent 2%

08:46

18:11

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
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:29, Set: 18:04, Transit: 12:47. Moon - Rise: 08:46, Set: 18:11. Civil Dark: 18:34 - 06:59. Nautical Dark: 19:08 - 06:25. Astro Dark: 19:43 - 05:51

Total Clouds (% Sky Obscured)

66
60
57
57
62
67
73
76
82
85
89
91
91
88
85
82
80
75
68
70
72
74
74
79

Low Clouds (% Sky Obscured)

52
50
48
47
46
46
46
47
47
48
45
42
48
52
53
44
29
23
18
17
19
18
22
37

Medium Clouds (% Sky Obscured)

44
42
40
42
56
67
73
76
82
85
68
45
29
21
20
21
20
11
0
1
4
12
24
36

High Clouds (% Sky Obscured)

37
20
13
13
15
13
15
15
15
10
4
0
0
0
0
0
0
0
0
5
17
27
31
34

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 (%)

30
26
20
5
15
20
18
29
29
25
24
22
19
19
18
19
17
14
7
10
10
8
8
7

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
6
5
4
4
5
5
4
5
5
5
6
7
7
7
7
6
6
5
5
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
90
91
93
93
91
93
91
90
90
90
90
87
87
85
85
84
85
88
90
88
86
85
85

Pressure (mb)

1007
1008
1008
1008
1009
1009
1010
1010
1010
1011
1011
1011
1011
1011
1012
1012
1013
1013
1014
1014
1015
1016
1016
1016

Ozone (du)

315
320
320
320
320
322
323
324
326
327
328
327
326
325
323
322
320
316
312
309
305
301
298
297

Thursday 23

Waxing Crescent 5%

09:53

18:37

Sun - Rise: 07:31, Set: 18:02, Transit: 12:46. Moon - Rise: 09:53, Set: 18:37. Civil Dark: 18:32 - 07:01. Nautical Dark: 19:07 - 06:26. Astro Dark: 19:41 - 05:52

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 17/10/25 00:51:20. Forecast: 17/10/25 to 23/10/25. Timezone: UTC-4.00