Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 11

Third Quarter 44%

00:11

12:28

23 Bad
00 Bad
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

Sun - Rise: 07:34, Set: 16:19, Transit: 11:57. Moon - Rise: 00:11, Set: 12:28. Civil Dark: 16:53 - 07:00. Nautical Dark: 17:31 - 06:22. Astro Dark: 18:07 - 05:46

Total Clouds (% Sky Obscured)

84
87
89
94
77
80
90
96
92
89
84
67
76
73
83
68
68
49
42
49
48
58
58
58

Low Clouds (% Sky Obscured)

44
63
9
1
3
35
43
71
49
57
68
47
66
48
66
63
68
49
42
49
48
58
58
58

Medium Clouds (% Sky Obscured)

84
87
89
94
75
66
78
85
76
38
9
2
2
2
5
2
2
3
4
3
3
0
0
0

High Clouds (% Sky Obscured)

66
77
89
89
76
67
4
4
3
4
3
3
3
3
3
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
2
1
2
9
9
9
9
9
9
9
9
9
9
9
4
3
3

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
2
4
5
3
2
10
0
1
0
0
0
0
2
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)

11
11
11
12
11
12
12
12
12
12
12
13
12
12
12
12
11
9
7
5
4
4
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-18
-19
-19
-18
-19
-19
-18
-18
-17
-16
-15
-14
-13
-12
-11
-10
-10
-10
-10
-12
-13
-13
-15
-16

Dew Point (°C)

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

Relative Humidity (%)

78
78
79
81
79
81
79
83
83
85
83
85
85
82
84
84
85
84
87
88
88
88
88
86

Pressure (mb)

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

Ozone (du)

368
369
366
365
364
362
364
354
357
355
352
351
353
350
352
353
356
356
348
349
353
350
344
341

Friday 12

Waning Crescent 34%

01:17

12:44

23 OK
00 Bad
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 OK
20 Bad
21 Bad
22 OK

Sun - Rise: 07:34, Set: 16:20, Transit: 11:57. Moon - Rise: 01:17, Set: 12:44. Civil Dark: 16:53 - 07:00. Nautical Dark: 17:31 - 06:23. Astro Dark: 18:07 - 05:47

Total Clouds (% Sky Obscured)

30
64
100
100
98
86
92
98
99
99
97
96
100
100
48
67
100
78
49
46
22
54
45
27

Low Clouds (% Sky Obscured)

11
4
56
69
85
57
14
93
97
91
91
90
100
100
44
41
100
44
24
9
4
54
45
27

Medium Clouds (% Sky Obscured)

1
42
100
99
90
74
91
60
76
97
39
35
45
40
42
0
6
30
0
0
0
9
0
0

High Clouds (% Sky Obscured)

7
28
60
66
65
45
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
1
18
26
7
30
64
82
75
71
82
75
59
49
31
28
12
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.4
0.7
0.4
0.3
0.6
0.5
0.3
0.2
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

3
2
1
2
3
3
3
4
4
4
4
4
6
8
9
10
10
11
8
5
5
5
4
4

Chance of Frost

Temperature (°C)

-13
-14
-15
-15
-14
-13
-12
-13
-13
-11
-10
-8
-5
-3
-2
-2
-2
-4
-5
-7
-9
-10
-12
-13

Feels Like (°C)

-17
-17
-17
-18
-18
-16
-16
-17
-17
-15
-13
-12
-9
-8
-7
-6
-8
-9
-10
-11
-12
-14
-15
-16

Dew Point (°C)

-15
-16
-17
-16
-16
-14
-14
-13
-14
-12
-11
-9
-6
-4
-5
-5
-5
-6
-6
-8
-10
-12
-14
-15

Relative Humidity (%)

84
86
86
86
86
90
90
94
92
92
92
94
92
94
82
79
81
82
90
90
88
86
86
84

Pressure (mb)

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

Ozone (du)

340
343
350
349
353
360
363
363
360
359
365
369
373
373
378
377
371
369
364
362
369
374
376
373

Saturday 13

Waning Crescent 25%

02:22

13:02

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

Sun - Rise: 07:35, Set: 16:20, Transit: 11:57. Moon - Rise: 02:22, Set: 13:02. Civil Dark: 16:54 - 07:01. Nautical Dark: 17:31 - 06:24. Astro Dark: 18:07 - 05:48

Total Clouds (% Sky Obscured)

8
7
39
44
44
86
86
63
20
8
6
5
6
27
37
42
21
47
52
63
49
47
36
48

Low Clouds (% Sky Obscured)

6
1
2
3
5
35
30
15
2
2
2
1
1
9
12
19
8
47
52
57
41
33
20
29

Medium Clouds (% Sky Obscured)

0
2
23
27
35
36
43
38
20
2
0
0
0
0
0
0
0
47
50
54
37
18
0
0

High 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
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
7
4
7
9

Fog (%)

0
0
0
0
0
0
0
2
12
20
2
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
1
0
0
0
0
0
0
0
0
0
0
2
1
2
3
5

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-17
-18
-19
-20
-21
-22
-23
-23
-22
-22
-19
-15
-14
-14
-15
-15
-16
-16
-18
-19
-20
-20
-19
-18

Dew Point (°C)

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

Relative Humidity (%)

84
82
81
80
80
80
81
80
79
79
81
79
76
73
72
70
75
78
81
83
84
84
86
79

Pressure (mb)

1015
1015
1015
1016
1016
1016
1016
1017
1017
1018
1019
1019
1019
1019
1019
1019
1020
1020
1021
1022
1022
1022
1022
1022

Ozone (du)

374
373
378
382
387
395
400
397
395
391
380
373
369
368
364
358
349
348
346
332
343
337
339
351

Sunday 14

Waning Crescent 17%

03:28

13:21

23 OK
00 OK
01 Good
02 Good
03 Good
04 Good
05 OK
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

Sun - Rise: 07:36, Set: 16:20, Transit: 11:58. Moon - Rise: 03:28, Set: 13:21. Civil Dark: 16:54 - 07:02. Nautical Dark: 17:32 - 06:24. Astro Dark: 18:08 - 05:48

Total Clouds (% Sky Obscured)

41
26
5
10
3
3
11
43
59
72
85
91
95
100
100
100
100
100
100
100
99
97
96
97

Low Clouds (% Sky Obscured)

25
17
4
9
2
2
7
12
13
2
2
18
49
60
70
81
91
91
93
94
93
93
93
89

Medium Clouds (% Sky Obscured)

1
1
0
0
0
0
0
1
59
72
85
90
95
100
100
100
100
100
100
100
95
87
81
78

High Clouds (% Sky Obscured)

0
0
0
0
0
0
2
36
50
61
76
83
72
81
80
80
85
65
35
5
3
1
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
6
9
9
9
9
9
9
9
0
0
0
0
0
0
1
3

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
Snow
Snow
Snow
Snow
Snow
None
None
None

Precipitation Probability (%)

2
2
0
1
0
3
1
0
0
0
0
0
0
0
3
17
40
47
60
52
43
33
25
20

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-13
-14
-14
-14
-14
-15
-15
-16
-17
-16
-14
-13
-11
-10
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9

Feels Like (°C)

-18
-18
-19
-18
-18
-18
-18
-20
-22
-20
-18
-17
-16
-15
-14
-13
-13
-12
-13
-13
-13
-12
-12
-13

Dew Point (°C)

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

Relative Humidity (%)

79
81
83
83
84
84
83
83
84
85
84
83
81
81
81
82
87
92
94
94
94
92
94
90

Pressure (mb)

1022
1022
1023
1023
1023
1024
1024
1024
1025
1024
1024
1024
1023
1022
1021
1020
1019
1018
1017
1017
1016
1015
1014
1014

Ozone (du)

358
369
354
350
334
322
327
309
298
286
288
293
302
304
305
301
310
320
324
339
345
355
355
350

Monday 15

Waning Crescent 11%

04:34

13:44

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

Sun - Rise: 07:37, Set: 16:20, Transit: 11:58. Moon - Rise: 04:34, Set: 13:44. Civil Dark: 16:54 - 07:03. Nautical Dark: 17:32 - 06:25. Astro Dark: 18:08 - 05:49

Total Clouds (% Sky Obscured)

86
76
96
92
78
78
83
82
70
50
30
27
25
60
100
100
100
99
97
95
94
92
91
93

Low Clouds (% Sky Obscured)

73
61
70
69
67
69
72
73
70
50
30
27
25
21
21
43
64
71
78
85
84
83
82
82

Medium Clouds (% Sky Obscured)

68
60
89
80
19
7
3
0
0
0
0
0
0
0
24
42
53
69
70
68
66
63
63
62

High Clouds (% Sky Obscured)

0
3
40
2
0
0
0
0
1
1
0
0
4
55
100
100
100
71
48
42
51
54
47
64

ISS Passover

Visibility (miles)

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

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 (%)

15
11
9
7
8
5
7
5
6
6
5
5
4
1
0
0
0
3
5
3
13
20
23
20

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)

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

Chance of Frost

Temperature (°C)

-9
-10
-12
-12
-12
-13
-13
-13
-13
-12
-10
-8
-7
-7
-7
-5
-5
-5
-5
-5
-5
-5
-5
-4

Feels Like (°C)

-13
-14
-14
-16
-16
-16
-17
-17
-17
-16
-12
-10
-9
-9
-11
-9
-8
-8
-8
-9
-9
-8
-9
-9

Dew Point (°C)

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

Relative Humidity (%)

88
90
90
88
90
88
90
88
88
88
88
85
83
80
82
85
89
92
92
94
94
94
94
94

Pressure (mb)

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

Ozone (du)

360
361
364
372
380
380
377
370
356
339
327
304
277
269
268
265
263
261
260
259
258
258
257
257

Tuesday 16

Waning Crescent 6%

05:40

14:13

23 Bad
00 Bad
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

Sun - Rise: 07:37, Set: 16:21, Transit: 11:59. Moon - Rise: 05:40, Set: 14:13. Civil Dark: 16:55 - 07:03. Nautical Dark: 17:32 - 06:26. Astro Dark: 18:08 - 05:50

Total Clouds (% Sky Obscured)

94
95
97
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
95
93
95

Low Clouds (% Sky Obscured)

82
83
84
85
86
88
90
92
95
97
100
100
100
100
100
100
100
100
100
100
92
84
76
73

Medium Clouds (% Sky Obscured)

63
63
62
57
42
47
59
73
76
82
87
90
87
90
84
83
85
88
90
87
58
26
1
13

High Clouds (% Sky Obscured)

57
45
53
71
88
89
90
90
93
97
100
81
61
41
34
28
21
14
8
0
12
41
64
79

ISS Passover

Visibility (miles)

0
0
0
2
4
6
7
8
9
7
4
2
1
1
0
0
1
1
4
7
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 (%)

19
21
19
18
18
14
11
5
13
17
20
18
15
13
13
18
22
23
23
21
16
10
2
4

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)

8
9
9
10
10
10
11
12
14
13
13
13
13
12
12
12
12
12
11
10
9
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
94
92
91
91
89
89
89
91
94
94
98
100
100
100
98
98
98
96
94
93
93
93
91

Pressure (mb)

1013
1012
1011
1010
1009
1008
1007
1006
1005
1005
1005
1004
1004
1004
1004
1005
1006
1007
1008
1009
1010
1011
1013
1014

Ozone (du)

260
263
266
268
271
273
275
276
278
277
277
277
280
283
286
288
291
293
293
294
294
295
295
296

Wednesday 17

Waning Crescent 2%

06:45

14:50

23 Bad
00 Bad
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

Sun - Rise: 07:38, Set: 16:21, Transit: 11:59. Moon - Rise: 06:45, Set: 14:50. Civil Dark: 16:55 - 07:04. Nautical Dark: 17:33 - 06:26. Astro Dark: 18:09 - 05:50

Total Clouds (% Sky Obscured)

98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

77
76
76
83
80
80
79
79
81
85
91
80
71
63
79
88
97
95
94
93

Medium Clouds (% Sky Obscured)

26
65
74
84
100
100
100
100
98
95
91
84
75
64
66
72
78
80
79
79

High Clouds (% Sky Obscured)

89
100
100
100
100
100
99
97
96
90
80
66
57
50
67
84
100
78
56
33

ISS Passover

Visibility (miles)

9
9
9
9
9
9
6
3
0
0
0
0
0
0
0
0
0
0
3
6

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
Snow
Snow
Sleet
None
None
None
None
None
None
Frozen rai
Frozen rai
Frozen rai

Precipitation Probability (%)

3
0
0
1
1
12
19
28
47
57
64
49
33
22
33
42
49
57
58
60

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.2
0.2
0.3
0
0
0
0
0
0
0.2
0.2
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
96
96
96
96
96
96
100
100
98
100
100
100
98
100
98
100
100
96
91

Pressure (mb)

1015
1015
1016
1016
1017
1017
1017
1017
1017
1017
1016
1016
1014
1013
1012
1011
1010
1010
1009
1009

Ozone (du)

297
298
299
299
299
299
300
301
302
305
307
310
309
307
306
309
312
315
318
322

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

Generated: 11/12/25 23:12:25. Forecast: 11/12/25 to 17/12/25. Timezone: UTC-5.00