Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 5

Waning Gibbous 90%

00:06

08:08

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
23 Bad

Sun - Rise: 06:52, Set: 19:51, Transit: 13:21. Moon - Rise: 00:06, Set: 08:08. Civil Dark: 20:20 - 06:23. Nautical Dark: 20:55 - 05:48. Astro Dark: 21:31 - 05:12

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
99
90
88
95
98
100
99
92
95
82
98
93
88
92
98
94
81
76

Low Clouds (% Sky Obscured)

85
97
87
83
97
26
39
41
87
95
98
100
99
89
87
80
97
87
83
84
92
88
80
76

Medium Clouds (% Sky Obscured)

98
100
100
15
3
0
0
0
0
0
6
33
60
46
53
0
51
23
6
8
40
39
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
94
40
1
2
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

Fog (%)

-
-
-
-
-
-
-
-
-
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
62
0
0
19
17
20
20
24
26
25
11
4
3
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
14
16
13
15
17
15
15
15
14
17
16
20
21
21
23
23
21
20
18
17
15
15
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
87
82
83
82
80
75
75
74
71
68
63
65
64
60
57
59
58
61
63
65
66
73
71

Pressure (mb)

1007
1007
1008
1008
1008
1009
1009
1010
1010
1011
1011
1011
1011
1011
1012
1012
1012
1013
1014
1015
1016
1017
1017
1018

Ozone (du)

328
328
332
334
335
337
340
342
346
346
350
352
357
354
350
351
354
360
362
365
366
369
371
376

Monday 6

Waning Gibbous 84%

00:06

08:42

00 OK
01 OK
02 OK
03 OK
04 OK
05 Bad
06 Bad
07 OK
08 OK
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

Sun - Rise: 06:50, Set: 19:52, Transit: 13:21. Moon - Rise: 00:06, Set: 08:42. Civil Dark: 20:21 - 06:21. Nautical Dark: 20:56 - 05:46. Astro Dark: 21:33 - 05:10

Total Clouds (% Sky Obscured)

31
29
42
41
26
73
50
36
46
81
61
80
100
79
71
62
56
90
86
100
100
100
96
82

Low Clouds (% Sky Obscured)

31
29
12
10
4
31
17
4
3
43
41
70
100
74
41
59
50
56
26
32
39
74
73
42

Medium Clouds (% Sky Obscured)

0
2
23
33
23
24
22
35
45
45
41
41
60
39
34
23
55
83
81
100
100
75
76
75

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
7
9
9
5
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
Snow
Snow
None
None

Precipitation Probability (%)

1
0
0
0
0
1
0
0
0
3
10
5
12
6
5
6
7
6
7
27
36
37
10
23

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.2
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
74
77
77
80
78
77
77
72
58
46
41
38
40
41
41
41
41
40
47
74
81
88
77

Pressure (mb)

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

Ozone (du)

380
385
386
388
390
391
395
397
398
398
398
396
396
399
401
402
403
405
406
406
406
408
404
402

Tuesday 7

Waning Gibbous 76%

01:07

09:24

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

Sun - Rise: 06:48, Set: 19:53, Transit: 13:21. Moon - Rise: 01:07, Set: 09:24. Civil Dark: 20:22 - 06:19. Nautical Dark: 20:57 - 05:44. Astro Dark: 21:34 - 05:08

Total Clouds (% Sky Obscured)

79
63
90
79
95
88
84
34
54
57
55
46
34
22
21
20
5
0
0
0
0
0
0
3

Low Clouds (% Sky Obscured)

58
57
82
50
95
80
56
29
46
51
55
46
34
22
21
20
5
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

69
0
52
41
53
50
40
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
1

ISS Passover

Visibility (miles)

9
9
9
7
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 (%)

24
23
14
9
13
18
7
1
0
0
0
0
0
0
0
0
0
0
0
1
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)

7
7
7
10
8
12
17
16
15
15
14
13
12
12
11
11
11
11
11
9
8
6
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-4
-5
-5
-5
-7
-8
-10
-11
-13
-15
-16
-17
-17
-17
-17
-16
-15
-14
-14
-13
-12
-12
-12
-12

Relative Humidity (%)

75
74
74
79
67
64
61
58
49
41
36
32
29
27
26
27
28
30
32
36
44
47
48
49

Pressure (mb)

1020
1021
1021
1022
1022
1024
1025
1027
1029
1030
1031
1032
1032
1033
1033
1032
1032
1032
1032
1033
1033
1035
1035
1035

Ozone (du)

405
406
409
414
423
428
431
434
431
425
422
417
414
418
424
426
423
421
414
411
408
403
402
397

Wednesday 8

Waning Gibbous 67%

02:02

10:14

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

Sun - Rise: 06:47, Set: 19:55, Transit: 13:21. Moon - Rise: 02:02, Set: 10:14. Civil Dark: 20:24 - 06:18. Nautical Dark: 20:59 - 05:42. Astro Dark: 21:36 - 05:06

Total Clouds (% Sky Obscured)

19
45
5
1
2
4
11
40
40
40
47
14
14
14
43
43
52
45
76
73
67
65
31
42

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
1
1
11
5
1
1
1
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
2
0
0
0
0
0
0
1
1
5
11
14
31
43
52
45
59
38
34
34
26
34

High Clouds (% Sky Obscured)

8
20
2
0
0
0
0
0
0
0
0
0
0
0
0
1
4
3
27
18
12
6
1
9

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

Chance of Frost

Temperature (°C)

-3
-3
-3
-3
-3
-3
-3
-3
-3
-1
2
3
5
6
8
9
9
10
9
7
5
4
4
3

Feels Like (°C)

-4
-5
-6
-5
-5
-5
-5
-6
-7
-6
-4
-2
1
2
4
4
5
6
6
4
1
1
-0
1

Dew Point (°C)

-12
-13
-13
-13
-14
-13
-13
-11
-10
-11
-12
-13
-14
-13
-10
-9
-7
-6
-4
-3
-4
-4
-4
-2

Relative Humidity (%)

48
48
46
45
44
45
47
53
56
45
35
29
24
24
27
29
31
34
40
49
55
56
59
68

Pressure (mb)

1035
1036
1036
1036
1036
1036
1036
1036
1036
1036
1036
1036
1034
1033
1032
1031
1030
1029
1029
1029
1029
1029
1028
1028

Ozone (du)

391
385
384
381
378
376
373
373
373
376
377
380
384
384
381
380
377
372
374
370
366
365
362
359

Thursday 9

Waning Gibbous 57%

02:49

11:13

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

Sun - Rise: 06:45, Set: 19:56, Transit: 13:20. Moon - Rise: 02:49, Set: 11:13. Civil Dark: 20:25 - 06:16. Nautical Dark: 21:00 - 05:41. Astro Dark: 21:37 - 05:04

Total Clouds (% Sky Obscured)

41
72
83
91
100
100
100
100
88
74
61
50
36
25
15
9
8
23
33
46
66
84
100
97

Low Clouds (% Sky Obscured)

0
0
0
0
0
11
20
31
20
9
0
0
0
0
0
0
0
0
0
12
18
27
46
59

Medium Clouds (% Sky Obscured)

33
32
31
30
35
75
71
38
70
33
37
38
30
25
15
9
8
23
17
46
43
34
28
31

High Clouds (% Sky Obscured)

16
28
52
76
100
100
100
100
87
60
48
50
36
25
15
9
8
23
33
46
64
67
81
76

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
Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
9
44
59
72
68

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
0.4
0.3

Wind Speed/Direction (mph)

5
7
8
10
11
13
14
15
17
18
20
22
23
23
24
24
23
23
20
18
16
16
15
15

Chance of Frost

Temperature (°C)

4
5
5
5
5
5
6
6
7
8
10
11
13
15
16
17
17
17
17
16
15
14
13
12

Feels Like (°C)

1
1
0
0
0
0
1
1
1
3
5
5
7
9
10
11
11
12
11
10
9
9
9
9

Dew Point (°C)

1
1
1
1
2
2
2
3
3
3
4
4
5
6
6
7
8
8
8
8
8
9
10
11

Relative Humidity (%)

80
76
78
78
78
78
78
78
75
69
65
60
56
54
53
53
55
56
57
61
62
71
80
92

Pressure (mb)

1027
1027
1026
1026
1026
1025
1025
1025
1025
1025
1025
1025
1024
1023
1023
1022
1021
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

356
355
357
358
360
361
361
358
357
355
353
351
349
349
349
351
348
345
347
347
346
348
350
352

Friday 10

Third Quarter 47%

03:28

12:17

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 OK
22 OK
23 OK

Sun - Rise: 06:43, Set: 19:57, Transit: 13:20. Moon - Rise: 03:28, Set: 12:17. Civil Dark: 20:26 - 06:14. Nautical Dark: 21:01 - 05:39. Astro Dark: 21:39 - 05:01

Total Clouds (% Sky Obscured)

92
86
89
95
100
94
87
81
81
84
86
79
75
67
66
65
64
64
64
63
52
41
30
20

Low Clouds (% Sky Obscured)

68
70
75
81
80
73
71
72
73
75
77
71
64
61
53
46
45
38
38
38
30
27
19
12

Medium Clouds (% Sky Obscured)

43
56
65
77
87
70
51
32
21
10
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

64
50
68
67
95
66
35
3
1
1
0
0
0
0
0
2
4
5
19
40
49
41
30
20

ISS Passover

Visibility (miles)

8
7
5
6
6
7
8
8
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
None
None
Very Light Rain
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

Precipitation Probability (%)

58
40
49
71
95
95
95
92
75
50
2
6
6
3
4
3
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.2
0
0
0.3
0.6
0.7
0.8
0.6
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
8
7
7
6
6
7
7
7
7
8
8
7
8
8
10
9
9
9
9
9
3
3
3

Dew Point (°C)

11
11
11
10
10
10
9
8
7
5
4
2
1
1
1
0
-1
-1
-1
-1
-1
-2
-2
-2

Relative Humidity (%)

92
93
95
95
95
95
90
85
80
69
60
53
49
45
43
42
41
41
44
49
53
56
60
63

Pressure (mb)

1020
1019
1019
1019
1019
1019
1020
1021
1021
1022
1023
1023
1024
1024
1024
1025
1025
1025
1026
1027
1028
1028
1029
1029

Ozone (du)

350
348
347
349
351
353
355
358
360
361
363
365
366
367
368
368
368
369
362
356
350
351
352
353

Saturday 11

Waning Crescent 37%

04:00

13:25

00 Good
01 Good
02 Good
03 Good
04 Good
05 Good
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

Sun - Rise: 06:42, Set: 19:58, Transit: 13:20. Moon - Rise: 04:00, Set: 13:25. Civil Dark: 20:27 - 06:12. Nautical Dark: 21:03 - 05:37. Astro Dark: 21:40 - 04:59

Total Clouds (% Sky Obscured)

11
0
3
5
8
17
31
50
59
71
81
86
88
92
89
89
89
93
98
100
100
100
100
100

Low Clouds (% Sky Obscured)

6
0
0
0
0
0
0
0
8
17
26
43
60
77
75
74
72
70
68
72
60
52
42
42

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
1
1
4
7
10
32
54
72
67
62
65
79
87
90
94
97
100
100

High Clouds (% Sky Obscured)

11
0
3
5
8
17
31
50
59
71
60
45
40
20
15
10
15
50
93
100
100
100
100
98

ISS Passover

Visibility (miles)

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

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
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
20
34
52
63
69
67

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
0.3
0.4
0.3

Wind Speed/Direction (mph)

6
6
6
6
6
7
7
6
6
7
7
8
7
7
6
7
7
8
7
7
8
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

66
67
69
69
66
66
66
65
65
62
60
58
57
57
56
57
61
62
67
72
78
83
86
91

Pressure (mb)

1030
1030
1030
1030
1030
1030
1031
1031
1032
1032
1031
1031
1031
1030
1030
1029
1029
1028
1028
1028
1028
1027
1027
1027

Ozone (du)

356
358
361
360
360
359
358
356
355
353
351
349
347
345
343
340
337
335
335
335
335
333
331
329

Forecast for Waterdown, Canada (43.35,-79.88)

Generated: 05/04/26 09:18:35. Forecast: 05/04/26 to 11/04/26. Timezone: UTC-4.00