Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 5

Waning Crescent 37%

00:34

16:26

08 Bad
09 OK
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 OK
06 OK
07 OK

Sun - Rise: 06:31, Set: 19:32, Transit: 13:01. Moon - Rise: 00:34, Set: 16:26. Civil Dark: 20:02 - 06:01. Nautical Dark: 20:38 - 05:25. Astro Dark: 21:16 - 04:47

Total Clouds (% Sky Obscured)

40
39
50
78
96
92
87
95
97
93
92
88
89
87
80
79
81
76
70
78
53
28
32
17

Low Clouds (% Sky Obscured)

14
33
50
65
57
59
52
24
47
20
62
42
65
60
50
34
35
45
53
66
51
28
32
17

Medium Clouds (% Sky Obscured)

0
0
20
44
43
32
25
42
35
38
29
25
17
12
12
23
29
18
0
0
0
0
0
0

High Clouds (% Sky Obscured)

4
2
0
0
0
0
0
0
0
1
0
3
3
3
2
0
0
0
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
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
2
4
13
4
3
6
8
23
36
15
16
4
1
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)

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

Chance of Frost

Temperature (°C)

18
19
19
20
21
20
20
21
21
21
20
18
17
16
15
15
14
14
14
13
13
12
11
11

Feels Like (°C)

19
20
20
21
20
20
19
20
21
21
20
17
16
16
15
14
14
13
13
13
12
12
12
12

Dew Point (°C)

16
15
14
14
14
15
16
16
17
17
16
14
15
15
14
14
12
12
11
11
11
10
10
10

Relative Humidity (%)

89
80
72
68
63
69
75
74
76
77
77
79
87
92
92
90
87
86
86
84
87
92
95
95

Pressure (mb)

1014
1015
1015
1014
1014
1014
1014
1015
1014
1015
1015
1016
1016
1017
1017
1018
1018
1018
1018
1019
1019
1019
1020
1020

Ozone (du)

309
309
309
309
311
312
310
308
308
310
312
314
315
316
317
319
320
320
318
317
318
320
319
317

Sunday 6

Waning Crescent 26%

01:52

17:15

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

Sun - Rise: 06:32, Set: 19:30, Transit: 13:00. Moon - Rise: 01:52, Set: 17:15. Civil Dark: 20:00 - 06:02. Nautical Dark: 20:36 - 05:26. Astro Dark: 21:14 - 04:49

Total Clouds (% Sky Obscured)

9
3
3
17
36
40
38
46
44
37
32
48
31
31
46
42
33
18
1
9
24
27
26
3

Low Clouds (% Sky Obscured)

9
3
3
17
36
27
32
6
15
0
0
0
5
5
4
5
0
11
0
0
19
27
26
0

Medium Clouds (% Sky Obscured)

0
0
0
0
24
26
22
33
24
28
20
7
1
5
16
19
24
14
0
8
3
0
0
0

High Clouds (% Sky Obscured)

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

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
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)

3
5
5
4
4
5
5
6
6
6
5
4
5
5
5
5
5
5
4
4
5
5
4
4

Chance of Frost

Temperature (°C)

13
15
17
19
21
22
23
23
23
23
22
20
19
18
17
16
15
14
14
13
13
12
12
12

Feels Like (°C)

14
16
18
19
21
22
23
23
23
23
23
21
18
16
15
15
14
14
14
14
13
11
11
12

Dew Point (°C)

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

Relative Humidity (%)

87
75
65
57
52
48
47
45
46
53
62
68
60
60
58
62
67
70
70
69
67
68
71
72

Pressure (mb)

1021
1021
1021
1020
1020
1019
1019
1019
1018
1018
1018
1019
1019
1019
1020
1019
1019
1020
1020
1020
1020
1021
1021
1022

Ozone (du)

319
322
322
324
324
325
326
327
328
329
326
323
320
316
314
313
314
316
317
316
314
311
313
315

Monday 7

Waning Crescent 16%

03:13

17:53

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

Sun - Rise: 06:33, Set: 19:28, Transit: 13:00. Moon - Rise: 03:13, Set: 17:53. Civil Dark: 19:58 - 06:03. Nautical Dark: 20:34 - 05:28. Astro Dark: 21:11 - 04:50

Total Clouds (% Sky Obscured)

3
11
2
27
49
70
80
80
84
84
78
74
58
45
35
49
55
68
67
67
74
79
81
87

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
6
12
20
18
19
19
12
6
0
0
0
0
6
40
48
31
28
15

Medium Clouds (% Sky Obscured)

0
0
0
19
37
56
53
50
43
36
30
24
16
8
35
49
55
68
67
67
74
79
81
87

High Clouds (% Sky Obscured)

1
6
1
2
1
0
10
20
29
24
19
15
25
35
35
38
42
45
39
27
25
24
24
32

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
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)

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

Chance of Frost

Temperature (°C)

14
17
19
22
23
24
25
25
25
24
23
21
20
19
18
17
17
16
16
16
16
16
16
16

Feels Like (°C)

15
18
19
23
24
25
26
25
26
24
23
20
19
17
17
16
16
15
15
14
15
15
15
16

Dew Point (°C)

9
10
11
12
12
11
11
11
13
15
16
15
13
11
11
10
10
10
10
10
10
10
10
11

Relative Humidity (%)

73
64
58
53
48
43
42
42
47
55
66
69
63
62
63
64
64
65
66
69
65
67
68
72

Pressure (mb)

1022
1023
1022
1022
1022
1021
1021
1021
1021
1020
1021
1021
1021
1021
1021
1022
1022
1022
1022
1021
1022
1022
1022
1022

Ozone (du)

314
312
310
308
306
305
306
307
306
307
307
307
306
306
309
306
305
304
303
301
300
300
300
299

Tuesday 8

Waning Crescent 8%

04:34

18:21

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: 06:35, Set: 19:26, Transit: 13:00. Moon - Rise: 04:34, Set: 18:21. Civil Dark: 19:56 - 06:05. Nautical Dark: 20:32 - 05:29. Astro Dark: 21:09 - 04:52

Total Clouds (% Sky Obscured)

90
96
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

15
15
20
14
17
29
18
51
52
41
36
35
43
52
64
59
52
50
68
76
83
79
71
63

Medium Clouds (% Sky Obscured)

54
73
41
71
83
93
96
98
100
98
95
93
95
98
100
100
100
100
97
97
98
99
99
100

High Clouds (% Sky Obscured)

55
79
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
6
6
9
9
9
9
9
9
9
8
8
7
5
2

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

Precipitation Probability (%)

0
0
0
0
0
1
15
23
32
56
72
58
45
34
33
29
29
44
54
62
67
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.3
0.2
0
0
0
0
0
0
0
0
0.2
1.3
2.8
3.8

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
74
77
71
65
63
66
68
75
80
86
93
96
98
96
95
96
95
95
96
96
98
98
98

Pressure (mb)

1023
1023
1023
1023
1023
1023
1022
1022
1021
1021
1022
1022
1022
1022
1021
1021
1020
1020
1019
1020
1019
1019
1018
1018

Ozone (du)

300
299
300
300
297
295
295
294
292
291
291
292
292
292
290
289
287
285
284
283
281
280
280
280

Wednesday 9

Waning Crescent 3%

05:52

18:45

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 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 06:36, Set: 19:24, Transit: 12:59. Moon - Rise: 05:52, Set: 18:45. Civil Dark: 19:54 - 06:06. Nautical Dark: 20:30 - 05:30. Astro Dark: 21:07 - 04:53

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
96
95
92
90
83
75
57
31
15
23
34
48
57
69
78

Low Clouds (% Sky Obscured)

73
83
93
92
91
90
92
93
94
81
70
59
45
39
32
32
27
15
19
13
10
16
31
40

Medium Clouds (% Sky Obscured)

100
100
100
98
95
93
73
52
31
21
12
5
3
2
0
0
0
0
2
5
7
10
15
19

High Clouds (% Sky Obscured)

100
100
100
100
100
100
93
89
92
92
88
80
75
75
70
40
18
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
0
0
1
2
2
5
7
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

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

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
94
74
55
46
34
23
15
5
0
1
1
1
8
11
14

Precipitation Amount (mm)

2.6
2.3
2.2
1.9
1.8
2.1
1.6
1.2
0.9
0.7
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
16
15
15
15
16
16
21
21
20
21
22
22
22
23
23
22
22
20
17
16
15
15
16

Dew Point (°C)

16
16
16
17
18
18
19
20
20
21
21
21
21
19
18
16
15
14
12
12
12
12
11
11

Relative Humidity (%)

98
98
98
100
98
98
98
95
92
89
91
91
91
89
85
82
78
76
72
72
71
71
72
74

Pressure (mb)

1017
1016
1015
1014
1013
1012
1010
1009
1008
1007
1006
1005
1005
1005
1005
1004
1004
1004
1004
1004
1004
1004
1004
1005

Ozone (du)

280
280
281
282
282
283
283
289
294
299
298
298
297
299
300
301
302
303
304
306
309
312
314
317

Thursday 10

New Moon 0%

07:08

19:05

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: 06:37, Set: 19:22, Transit: 12:59. Moon - Rise: 07:08, Set: 19:05. Civil Dark: 19:52 - 06:07. Nautical Dark: 20:27 - 05:32. Astro Dark: 21:05 - 04:55

Total Clouds (% Sky Obscured)

80
81
83
85
90
94
81
66
55
57
56
56
53
51
55
59
58
58
64
71
78
74
70
67

Low Clouds (% Sky Obscured)

54
64
81
78
68
71
56
39
22
18
14
8
8
7
7
16
36
54
49
49
49
37
30
24

Medium Clouds (% Sky Obscured)

14
7
0
17
36
58
59
65
55
57
51
44
34
25
17
24
27
33
33
37
40
40
40
39

High Clouds (% Sky Obscured)

0
0
0
0
0
0
2
3
5
7
9
16
32
36
30
23
13
12
20
27
31
24
17
10

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 (%)

16
17
13
13
10
3
4
3
0
5
6
3
4
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
75
75
75
71
65
60
60
60
59
61
63
64
65
68
69
70
69
71
73
76
78
77
77

Pressure (mb)

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

Ozone (du)

319
320
321
322
322
322
321
321
321
321
322
323
324
323
323
322
323
323
324
325
326
328
328
328

Friday 11

Waxing Crescent 1%

No Rise

19:23

Sun - Rise: 06:38, Set: 19:20, Transit: 12:59. Moon - Rise: No Rise, Set: 19:23. Civil Dark: 19:50 - 06:08. Nautical Dark: 20:25 - 05:33. Astro Dark: 21:02 - 04:56

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: 05/09/26 07:54:11. Forecast: 05/09/26 to 11/09/26. Timezone: UTC-4.00