Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 4

Waxing Gibbous 100%

15:56

07:01

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

Sun - Rise: 06:49, Set: 16:44, Transit: 11:46. Moon - Rise: 15:56, Set: 07:01. Civil Dark: 17:15 - 06:18. Nautical Dark: 17:51 - 05:42. Astro Dark: 18:25 - 05:08

Total Clouds (% Sky Obscured)

21
32
35
29
12
5
4
3
0
2
4
2
3
34
61
84
97
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
32
29
29
12
3
1
0
0
0
0
0
0
0
13
40
48
60
18
24
7
29
71
71

Medium Clouds (% Sky Obscured)

0
32
21
28
5
0
0
2
0
0
0
0
0
26
38
38
93
100
100
100
100
99
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
3
2
3
8
20
60
87
99
100
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 (%)

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
Light Rain

Precipitation Probability (%)

0
0
10
4
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
28
75

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
0.5

Wind Speed/Direction (mph)

9
9
9
13
14
13
12
11
8
6
6
5
5
4
4
4
4
3
3
3
3
3
4
3

Chance of Frost

Temperature (°C)

5
6
7
9
10
10
10
9
7
6
5
4
4
3
3
3
3
3
3
3
4
4
4
4

Feels Like (°C)

1
2
3
5
6
6
6
5
5
4
3
2
2
2
1
1
0
0
0
1
1
1
1
2

Dew Point (°C)

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

Relative Humidity (%)

75
67
62
55
50
49
50
54
61
67
71
73
76
80
82
85
88
88
86
86
85
86
86
85

Pressure (mb)

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

Ozone (du)

305
304
302
301
301
299
297
296
292
291
291
291
289
290
289
289
290
291
292
293
294
296
293
293

Wednesday 5

Full Moon 99%

16:26

08:29

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 Good
07 Good
08 OK

Sun - Rise: 06:50, Set: 16:43, Transit: 11:46. Moon - Rise: 16:26, Set: 08:29. Civil Dark: 17:14 - 06:19. Nautical Dark: 17:49 - 05:44. Astro Dark: 18:24 - 05:09

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
99
100
100
98
100
100
93
88
99
82
69
68
93
9
3
21

Low Clouds (% Sky Obscured)

76
97
97
78
100
100
100
96
86
97
72
83
68
75
73
65
98
74
65
68
93
8
1
21

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
98
100
100
95
100
100
76
58
2
0
0
3
0
0
0
0

High Clouds (% Sky Obscured)

100
60
100
60
100
100
100
55
0
0
0
0
16
0
50
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

8
5
9
4
3
2
0
0
0
0
0
0
0
0
5
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
2
0
4
100
100
99
23
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

92
88
93
95
95
95
95
95
95
95
95
94
58
24
19
10
4
2
4
1
3
1
0
0

Precipitation Amount (mm)

0.7
0.5
0.8
0.9
1.5
3.8
3.9
2.8
1.7
0.5
0.5
0.5
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
90
88
90
90
96
98
98
98
98
98
98
96
96
93
86
82
75
80
85
83
83
84
81

Pressure (mb)

1012
1010
1008
1006
1003
1001
1000
998
997
997
997
998
999
1001
1003
1004
1006
1007
1008
1010
1011
1013
1014
1015

Ozone (du)

294
293
291
289
288
290
291
297
301
304
310
319
331
335
338
339
345
348
346
353
356
359
370
377

Thursday 6

Waning Gibbous 95%

17:05

No Set

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

Sun - Rise: 06:52, Set: 16:42, Transit: 11:46. Moon - Rise: 17:05, Set: No Set. Civil Dark: 17:13 - 06:20. Nautical Dark: 17:48 - 05:45. Astro Dark: 18:23 - 05:10

Total Clouds (% Sky Obscured)

29
41
45
64
70
82
44
38
18
31
51
48
32
55
72
78
84
88
95
96
98
100
100
100

Low Clouds (% Sky Obscured)

29
41
45
64
51
80
44
38
9
1
1
1
1
2
2
9
15
22
29
42
52
63
75
88

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
10
19
3
21
43
55
56
65
88
91
95
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
3
14
31
51
48
32
55
62
45
43
61
79
84
92
100
80
65

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
1
2
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
None
None
None
None
None
None
None
None
None
None
None
Snow
Snow
Snow
Snow

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
13
48
40
42
66

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.1
0.1
0.4

Wind Speed/Direction (mph)

11
12
12
12
11
11
10
9
6
4
4
4
4
3
3
3
3
3
3
3
4
4
4
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-3
-3
-4
-4
-4
-4
-3
-4
-3
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-3
-1
-1
-1

Relative Humidity (%)

76
69
63
58
57
60
63
64
74
75
75
80
81
81
81
81
81
81
81
80
81
94
94
91

Pressure (mb)

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

Ozone (du)

375
367
361
358
352
342
335
323
319
318
317
319
318
318
319
318
316
315
314
314
313
314
313
315

Friday 7

Waning Gibbous 89%

17:57

09:53

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
08 Bad

Sun - Rise: 06:53, Set: 16:40, Transit: 11:46. Moon - Rise: 17:57, Set: 09:53. Civil Dark: 17:12 - 06:22. Nautical Dark: 17:47 - 05:46. Astro Dark: 18:22 - 05:11

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
99
98
96
76
91
89
91
93
62
61
95

Low Clouds (% Sky Obscured)

100
80
57
40
60
80
100
100
100
100
99
98
98
97
87
93
71
86
82
85
90
62
61
95

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
81
87
86
86
73
43
24
39
37
25
18
8
0
0
0

High Clouds (% Sky Obscured)

55
70
85
100
100
100
100
73
47
20
20
20
15
5
5
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

6
5
9
5
1
1
9
9
9
9
5
2
1
1
1
2
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

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

Precipitation Probability (%)

67
53
57
73
59
53
64
67
72
74
68
62
52
45
37
30
27
30
14
12
10
1
1
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

0
0
1
1
3
3
2
2
2
3
3
4
4
5
5
6
6
5
4
3
1
1
-0
-1

Relative Humidity (%)

93
91
88
89
94
96
93
89
93
96
96
98
98
100
98
98
98
96
90
93
88
86
89
88

Pressure (mb)

1011
1009
1007
1005
1003
1002
1000
999
999
998
998
997
997
996
996
996
997
998
999
1000
1001
1003
1004
1005

Ozone (du)

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

Saturday 8

Waning Gibbous 80%

19:03

11:04

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

Sun - Rise: 06:54, Set: 16:39, Transit: 11:46. Moon - Rise: 19:03, Set: 11:04. Civil Dark: 17:11 - 06:23. Nautical Dark: 17:46 - 05:47. Astro Dark: 18:21 - 05:13

Total Clouds (% Sky Obscured)

100
91
69
82
83
76
72
46
39
48
53
58
53
61
66
69
79
90
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
91
69
82
80
67
56
46
39
48
32
16
0
0
0
0
0
0
0
14
28
42
43
45

Medium Clouds (% Sky Obscured)

0
0
0
0
1
2
2
5
4
3
11
22
36
31
27
22
45
70
94
92
90
90
97
99

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
6
24
33
35
34
31
37
49
58
67
80
92
97
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 (%)

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

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
76
70
68
67
64
65
76
81
84
84
83
83
83
81
80
78
77
78
77
77
78
77
72

Pressure (mb)

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

Ozone (du)

322
321
322
324
324
323
319
318
318
318
318
319
320
321
322
322
323
323
323
323
323
323
323
323

Sunday 9

Waning Gibbous 70%

20:19

11:59

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
08 Bad

Sun - Rise: 06:56, Set: 16:38, Transit: 11:46. Moon - Rise: 20:19, Set: 11:59. Civil Dark: 17:09 - 06:24. Nautical Dark: 17:45 - 05:49. Astro Dark: 18:20 - 05:14

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
93
87
81
59
38

Low Clouds (% Sky Obscured)

47
61
74
88
89
86
88
92
97
100
100
100
100
96
92
88
82
76
70
69
68
69
59
38

Medium Clouds (% Sky Obscured)

100
99
98
98
98
98
100
99
98
98
97
97
96
98
98
97
78
64
53
52
45
37
25
12

High Clouds (% Sky Obscured)

100
98
96
93
82
84
30
28
21
19
24
19
2
17
30
30
10
3
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
6
7
8
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None

Precipitation Probability (%)

2
8
10
13
31
41
49
60
67
71
72
74
76
70
63
52
44
35
20
22
21
18
15
10

Precipitation Amount (mm)

0
0
0
0
0
0.1
0.1
0.3
0.3
0.3
0.3
0.4
0.3
0.3
0.3
0.2
0.1
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-4
-4
-4
-4
-4
-1
-1
-2
-1
-1
-1
-2
-2
-2
-2
-3
-2
-5
-5
-6
-6
-6
-6
-8

Dew Point (°C)

-5
-6
-6
-6
-6
-6
-6
-5
-5
-5
-4
-4
-3
-3
-4
-5
-5
-5
-5
-4
-6
-8
-9
-10

Relative Humidity (%)

68
65
62
59
56
59
61
64
66
67
70
73
77
80
78
75
74
77
81
86
78
72
65
57

Pressure (mb)

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

Ozone (du)

323
323
323
323
323
323
323
323
322
322
322
321
321
321
323
326
328
335
341
348
356
365
373
375

Monday 10

Waning Gibbous 59%

21:37

12:39

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

Sun - Rise: 06:57, Set: 16:37, Transit: 11:46. Moon - Rise: 21:37, Set: 12:39. Civil Dark: 17:08 - 06:25. Nautical Dark: 17:44 - 05:50. Astro Dark: 18:19 - 05:15

Total Clouds (% Sky Obscured)

17
19
24
31
28
27
23
23
18
17
17
18
16
18
21
23

Low Clouds (% Sky Obscured)

17
19
24
31
28
27
23
21
11
3
4
3
1
1
2
2

Medium Clouds (% Sky Obscured)

0
2
4
7
5
3
2
1
0
0
0
2
4
5
7
8

High Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

4
4
2
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

Wind Speed/Direction (mph)

11
12
12
12
13
12
12
11
10
9
9
8
8
8
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-8
-8
-8
-8
-8
-5
-6
-6
-5
-6
-6
-6
-5
-5
-5
-5

Dew Point (°C)

-12
-14
-14
-14
-14
-13
-12
-11
-9
-8
-7
-6
-6
-6
-6
-6

Relative Humidity (%)

48
41
40
38
36
39
42
44
52
58
67
68
71
71
74
76

Pressure (mb)

1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1017
1017
1016
1016
1016
1016

Ozone (du)

378
380
379
378
377
378
378
378
380
381
383
383
383
383
382
381

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

Generated: 04/11/25 08:20:49. Forecast: 04/11/25 to 10/11/25. Timezone: UTC-5.00