Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 11

Waxing Gibbous 98%

18:41

04:45

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

Sun - Rise: 05:35, Set: 20:21, Transit: 12:59. Moon - Rise: 18:41, Set: 04:45. Civil Dark: 20:55 - 05:01. Nautical Dark: 21:38 - 04:18. Astro Dark: 22:28 - 03:27

Total Clouds (% Sky Obscured)

22
31
50
53
81
100
88
78
37
54
23
1
5
18
22
0
0
0
1
1
3
16
14
8

Low Clouds (% Sky Obscured)

27
22
29
2
14
20
20
14
1
17
0
0
10
32
32
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
26
45
62
55
62
74
80
48
33
32
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
3
10
70
65
2
6
3
0
0
0
0
0
0
0
1
1
3
16
14
7

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
9
9
9
9
9
9
9
9

Fog (%)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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)

9
8
8
8
7
8
11
16
15
14
13
12
11
10
8
8
9
8
7
8
9
8
7
8

Chance of Frost

Temperature (°C)

18
19
20
20
21
20
19
15
13
12
10
8
7
5
5
4
3
2
1
1
4
6
8
10

Feels Like (°C)

16
17
18
18
18
18
15
10
8
7
6
5
4
2
2
2
-0
-1
-2
-2
1
3
4
6

Dew Point (°C)

7
6
6
5
6
7
6
5
3
3
1
1
-1
-1
-2
-3
-3
-4
-5
-5
-4
-5
-5
-4

Relative Humidity (%)

50
43
39
38
37
40
44
49
51
54
55
57
59
61
63
63
65
65
66
65
57
48
42
39

Pressure (mb)

1014
1013
1013
1013
1013
1013
1013
1015
1017
1018
1019
1020
1022
1023
1024
1025
1026
1026
1027
1028
1029
1029
1030
1030

Ozone (du)

336
339
343
346
350
354
357
362
367
372
376
375
374
374
374
375
375
377
379
379
379
376
373
367

Monday 12

Full Moon 100%

19:48

05:06

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

Sun - Rise: 05:34, Set: 20:22, Transit: 12:59. Moon - Rise: 19:48, Set: 05:06. Civil Dark: 20:56 - 05:00. Nautical Dark: 21:40 - 04:16. Astro Dark: 22:30 - 03:25

Total Clouds (% Sky Obscured)

9
6
4
5
3
2
15
51
67
32
57
63
96
86
76
86
75
82
74
80
72
58
46
26

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
10
16
20
20
30
35
13
1
1

Medium Clouds (% Sky Obscured)

0
0
0
0
0
1
10
38
38
24
52
57
96
86
74
39
51
81
74
29
27
28
20
19

High Clouds (% Sky Obscured)

9
5
3
5
3
1
3
28
43
8
3
3
3
3
0
0
5
6
3
4
3
13
24
5

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)

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

Chance of Frost

Temperature (°C)

12
13
15
16
16
16
16
15
12
10
10
9
8
8
8
8
8
8
8
8
9
11
14
17

Feels Like (°C)

9
11
12
14
15
15
17
14
10
8
9
8
7
5
5
5
6
6
5
6
7
8
11
15

Dew Point (°C)

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

Relative Humidity (%)

36
34
32
32
31
32
38
55
66
66
62
63
68
69
70
67
65
66
69
70
73
67
58
50

Pressure (mb)

1029
1028
1028
1027
1027
1027
1026
1026
1027
1027
1027
1027
1027
1027
1027
1026
1026
1026
1025
1026
1025
1024
1023
1022

Ozone (du)

365
363
363
361
359
356
356
356
355
353
353
351
351
350
347
345
344
342
341
342
342
340
339
338

Tuesday 13

Waning Gibbous 100%

20:55

05:34

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 OK
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 05:33, Set: 20:23, Transit: 12:59. Moon - Rise: 20:55, Set: 05:34. Civil Dark: 20:58 - 04:58. Nautical Dark: 21:41 - 04:14. Astro Dark: 22:32 - 03:23

Total Clouds (% Sky Obscured)

25
5
11
10
14
14
14
0
12
13
13
45
55
73
68
57
37
76
62
73
100
100
99
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
1
2
4
12
20
24
18

Medium Clouds (% Sky Obscured)

25
5
11
7
13
14
12
0
12
11
13
5
4
0
0
6
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

3
0
0
3
3
0
0
0
0
0
0
45
55
73
68
57
37
58
62
73
100
100
99
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
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)

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

Chance of Frost

Temperature (°C)

19
21
22
23
24
25
24
23
20
17
15
14
14
13
13
12
11
11
10
11
13
15
17
19

Feels Like (°C)

17
19
21
22
24
25
26
24
21
19
16
15
13
13
12
11
9
9
8
9
11
13
15
18

Dew Point (°C)

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

Relative Humidity (%)

46
43
41
42
47
51
61
73
82
88
92
92
93
93
92
95
98
98
96
95
92
89
85
81

Pressure (mb)

1021
1020
1019
1018
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018
1019
1019
1020
1020
1020
1020
1021
1021
1020
1020

Ozone (du)

336
337
338
337
337
336
337
337
336
337
338
335
335
333
328
327
326
326
325
325
324
323
322
323

Wednesday 14

Waning Gibbous 98%

22:01

06:09

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 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 05:32, Set: 20:25, Transit: 12:59. Moon - Rise: 22:01, Set: 06:09. Civil Dark: 20:59 - 04:57. Nautical Dark: 21:43 - 04:13. Astro Dark: 22:35 - 03:21

Total Clouds (% Sky Obscured)

100
100
99
95
81
100
100
100
100
100
100
72
19
39
46
54
56
75
82
82
97
94
91
93

Low Clouds (% Sky Obscured)

15
8
5
2
20
25
33
0
28
30
26
26
0
10
16
20
24
33
38
34
42
67
78
75

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
8
28
51
47
44
48
0
0
0
0
0
8
17
25
32
38
43
54

High Clouds (% Sky Obscured)

100
100
99
94
74
100
100
100
100
100
100
53
17
39
46
54
56
75
82
82
84
72
64
56

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
1
0
0
0
0
0
0
0
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)

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

Chance of Frost

Temperature (°C)

21
23
24
25
26
26
25
24
22
20
19
18
17
16
15
15
14
14
14
15
16
18
19
19

Feels Like (°C)

21
23
24
25
25
26
26
25
22
20
19
19
18
18
18
16
16
15
15
16
17
18
18
19

Dew Point (°C)

17
18
18
18
17
18
19
20
19
18
18
17
16
15
14
14
14
13
13
14
15
15
17
18

Relative Humidity (%)

77
72
67
62
60
61
69
78
87
91
93
93
93
95
95
96
96
96
96
95
90
82
88
89

Pressure (mb)

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

Ozone (du)

323
325
326
327
328
329
329
329
330
330
331
332
335
336
338
339
341
341
342
343
343
343
341
338

Thursday 15

Waning Gibbous 94%

23:03

06:54

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
09 Bad
10 Bad
11 Bad

Sun - Rise: 05:30, Set: 20:26, Transit: 12:59. Moon - Rise: 23:03, Set: 06:54. Civil Dark: 21:00 - 04:56. Nautical Dark: 21:44 - 04:11. Astro Dark: 22:37 - 03:19

Total Clouds (% Sky Obscured)

96
98
99
99
100
100
100
100
85
99
98
99
99
100
100
100
100
100
100
100
100
100
100
98

Low Clouds (% Sky Obscured)

66
68
79
85
99
100
99
91
55
95
92
93
94
95
94
93
93
91
89
85
83
83
84
80

Medium Clouds (% Sky Obscured)

87
95
86
95
80
51
34
29
28
21
14
13
21
28
53
66
67
73
72
55
52
48
41
33

High Clouds (% Sky Obscured)

48
40
53
76
100
100
85
94
64
28
15
34
67
100
100
95
77
57
44
33
33
28
29
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
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

1
3
7
5
8
6
7
3
12
15
17
17
14
7
7
10
16
18
25
32
38
44
54
58

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
21
21
20
21
20
20
19
18
17
17
16
16
16
15
15
15
15
15
15
16
16
17
18

Feels Like (°C)

19
20
20
20
20
21
20
19
19
17
17
17
16
16
15
16
15
15
15
15
15
16
17
18

Dew Point (°C)

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

Relative Humidity (%)

84
80
80
88
76
84
82
88
90
93
92
93
93
95
95
96
96
96
96
95
92
90
86
81

Pressure (mb)

1017
1016
1016
1015
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1012
1012
1012
1012
1012
1012
1012
1012
1012

Ozone (du)

336
336
336
337
339
339
339
338
336
336
336
335
335
336
337
338
338
338
341
341
341
338
335
334

Friday 16

Waning Gibbous 88%

23:58

07:49

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 OK
04 OK
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 05:29, Set: 20:27, Transit: 12:59. Moon - Rise: 23:58, Set: 07:49. Civil Dark: 21:02 - 04:54. Nautical Dark: 21:46 - 04:10. Astro Dark: 22:39 - 03:16

Total Clouds (% Sky Obscured)

99
95
100
100
100
99
97
95
91
88
84
73
62
50
46
42
38
48
62
78
82
85
86
91

Low Clouds (% Sky Obscured)

78
73
77
80
84
74
62
55
49
43
37
30
23
16
23
30
37
48
62
78
82
80
78
74

Medium Clouds (% Sky Obscured)

29
27
33
32
32
30
30
33
33
39
43
35
27
19
11
7
0
1
1
1
4
9
14
30

High Clouds (% Sky Obscured)

46
70
91
96
100
78
63
55
66
66
65
52
28
2
1
1
0
0
0
0
0
0
0
34

ISS Passover

Visibility (miles)

8
7
9
9
7
4
4
6
9
9
9
9
9
9
9
9
8
7
8
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

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

Precipitation Probability (%)

58
57
62
55
67
75
74
66
50
36
11
11
8
0
0
1
1
3
1
0
7
8
8
42

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

19
20
20
21
21
21
21
21
19
19
19
19
18
18
18
16
16
16
16
15
15
19
19
19

Dew Point (°C)

15
15
15
15
16
18
18
18
17
17
16
16
15
15
15
14
14
13
14
15
15
16
16
17

Relative Humidity (%)

77
76
72
72
73
82
88
89
90
92
93
95
96
96
98
96
98
98
96
96
95
90
84
80

Pressure (mb)

1011
1011
1010
1010
1009
1009
1009
1008
1008
1008
1008
1008
1008
1008
1007
1007
1007
1006
1006
1006
1006
1005
1004
1004

Ozone (du)

335
336
336
336
337
337
337
338
339
339
339
339
340
340
341
340
340
339
338
337
336
335
335
335

Saturday 17

Waning Gibbous 81%

00:43

08:54

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 Good
02 OK
03 OK
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 05:28, Set: 20:28, Transit: 12:59. Moon - Rise: 00:43, Set: 08:54. Civil Dark: 21:03 - 04:53. Nautical Dark: 21:48 - 04:08. Astro Dark: 22:41 - 03:14

Total Clouds (% Sky Obscured)

95
100
100
100
100
99
97
95
77
59
33
12
5
2
15
26
40
43
49
53
63
69
75
61

Low Clouds (% Sky Obscured)

71
68
67
68
69
75
80
87
77
59
33
12
5
2
15
26
40
43
49
53
56
41
29
21

Medium Clouds (% Sky Obscured)

47
63
75
86
98
81
59
32
22
11
2
1
1
0
4
13
21
20
11
0
2
6
18
26

High Clouds (% Sky Obscured)

67
99
99
98
99
93
89
83
55
27
12
8
5
2
15
12
4
4
4
9
38
64
75
56

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

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

Precipitation Probability (%)

59
68
90
95
95
95
95
95
95
95
91
73
51
2
1
0
0
0
0
0
0
0
0
2

Precipitation Amount (mm)

0.3
0.4
0.5
0.7
0.7
0.6
0.7
0.9
0.8
0.7
0.6
0.4
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
22
23
22
22
22
21
19
19
17
16
15
14
13
13
12
11
11
11
12
13
15
17
18

Feels Like (°C)

20
22
23
23
23
24
22
20
19
18
17
17
16
15
15
12
12
12
11
11
11
13
14
14

Dew Point (°C)

18
20
21
21
21
22
20
18
17
16
15
14
13
12
12
11
10
9
10
10
11
12
12
11

Relative Humidity (%)

83
87
89
91
94
98
94
92
90
90
92
93
93
93
93
92
91
90
88
87
84
78
71
65

Pressure (mb)

1003
1002
1001
1001
1000
1000
1000
1000
1000
1000
1001
1001
1001
1002
1002
1002
1003
1003
1004
1004
1004
1004
1004
1004

Ozone (du)

334
333
333
334
336
338
341
345
348
355
361
367
371
374
378
378
377
377
378
378
378
379
380
381

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

Generated: 11/05/25 04:58:54. Forecast: 11/05/25 to 17/05/25. Timezone: UTC-4.00