Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 28

Waxing Gibbous 94%

18:06

04:32

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

Sun - Rise: 05:44, Set: 19:49, Transit: 12:47. Moon - Rise: 18:06, Set: 04:32. Civil Dark: 20:20 - 05:13. Nautical Dark: 20:58 - 04:35. Astro Dark: 21:39 - 03:53

Total Clouds (% Sky Obscured)

51
62
71
79
54
39
38
24
30
30
49
35
23
42
54
35
88
89
72
93
100
100
100
100

Low Clouds (% Sky Obscured)

18
4
22
21
19
0
1
0
1
0
18
7
3
13
2
0
0
10
0
18
35
37
25
39

Medium Clouds (% Sky Obscured)

51
62
52
40
46
39
38
24
30
30
49
35
23
28
20
18
52
27
37
43
57
80
95
99

High Clouds (% Sky Obscured)

51
62
70
65
0
0
0
0
0
0
0
2
0
34
42
19
86
84
60
56
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
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)

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

Chance of Frost

Temperature (°C)

14
11
10
9
8
6
5
5
4
3
3
2
4
7
11
13
15
17
18
19
19
18
18
17

Feels Like (°C)

10
7
8
6
4
5
5
5
4
3
3
2
4
7
11
13
15
15
16
18
16
16
16
15

Dew Point (°C)

6
3
2
2
0
-1
-1
-1
-1
-1
-2
-1
-1
-0
1
3
4
5
6
6
7
8
10
10

Relative Humidity (%)

56
55
56
59
58
59
62
66
69
73
74
79
69
58
52
49
47
46
46
44
45
52
59
62

Pressure (mb)

1018
1019
1019
1019
1020
1020
1019
1019
1018
1018
1018
1018
1018
1017
1017
1015
1014
1013
1012
1011
1010
1010
1009
1009

Ozone (du)

337
335
337
338
339
343
358
364
365
363
355
355
354
360
362
367
367
366
364
361
363
367
369
366

Wednesday 29

Waxing Gibbous 98%

No Rise

04:52

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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 05:43, Set: 19:50, Transit: 12:47. Moon - Rise: No Rise, Set: 04:52. Civil Dark: 20:21 - 05:12. Nautical Dark: 20:59 - 04:34. Astro Dark: 21:41 - 03:51

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
99
99
100
100
98
100
100
96
94
84
91
98
87
80

Low Clouds (% Sky Obscured)

28
23
49
61
73
81
86
96
95
100
97
99
100
100
98
100
100
94
93
84
88
92
86
80

Medium Clouds (% Sky Obscured)

100
98
100
100
100
100
100
100
100
94
98
92
83
85
92
79
52
70
81
31
30
47
37
51

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
30
50
40
0
0
3
0
2
3
4
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
3
1
1
1
1
3
7
2
4
9
9
9
9
9
9
9
8

Fog (%)

0
0
0
0
0
0
0
73
74
74
74
73
36
3
2
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
4
10
27
62
95
95
95
95
95
90
47
74
68
51
30
33
27
24
21
21
30
36

Precipitation Amount (mm)

0
0
0
0
0
0
0.6
1
1.4
1.4
1.9
0.4
0
0.5
0.4
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
9
8
6
4
3
3
3
3
3
2
3
3
2
2
2
3
3
3
4
6
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

66
73
84
88
93
96
96
94
98
98
100
98
98
98
98
96
96
93
95
93
92
89
90
93

Pressure (mb)

1009
1010
1010
1010
1010
1010
1009
1009
1008
1007
1007
1007
1007
1007
1007
1006
1006
1006
1005
1005
1005
1005
1005
1006

Ozone (du)

366
363
364
367
366
367
366
365
366
369
372
377
380
378
381
381
382
380
378
377
378
379
382
388

Thursday 30

Waxing Gibbous 100%

19:12

05:14

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

Sun - Rise: 05:42, Set: 19:51, Transit: 12:47. Moon - Rise: 19:12, Set: 05:14. Civil Dark: 20:22 - 05:10. Nautical Dark: 21:01 - 04:32. Astro Dark: 21:43 - 03:49

Total Clouds (% Sky Obscured)

80
91
81
77
67
40
37
34
28
29
5
10
12
27
55
75
94
95
99
98
94
95
89
90

Low Clouds (% Sky Obscured)

80
79
71
77
67
40
37
34
28
29
3
10
8
21
52
55
53
60
65
60
58
70
67
80

Medium Clouds (% Sky Obscured)

53
64
41
30
13
0
0
0
0
0
0
0
0
0
0
37
75
63
73
64
56
36
32
85

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)

8
9
9
9
9
9
9
9
5
9
9
9
9
9
9
9
9
9
9
9
9
9
9
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

36
28
16
18
7
5
3
1
2
5
4
4
5
9
19
27
17
29
29
28
23
36
40
34

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)

6
5
4
4
6
7
5
5
4
3
3
3
3
7
10
10
10
10
12
11
11
11
10
9

Chance of Frost

Temperature (°C)

12
10
9
9
8
7
6
5
4
3
3
2
4
7
8
9
10
10
11
12
12
12
11
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
93
95
93
93
93
94
94
94
96
96
91
82
68
58
56
50
51
46
52
47
54
63

Pressure (mb)

1006
1007
1008
1008
1008
1009
1009
1009
1009
1009
1010
1010
1010
1011
1011
1010
1010
1010
1010
1010
1010
1010
1010
1011

Ozone (du)

390
390
388
390
391
391
391
390
392
392
394
401
404
403
404
406
405
405
406
405
410
411
410
411

Friday 1

Full Moon 100%

20:18

05:40

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

Sun - Rise: 05:40, Set: 19:52, Transit: 12:47. Moon - Rise: 20:18, Set: 05:40. Civil Dark: 20:23 - 05:09. Nautical Dark: 21:02 - 04:30. Astro Dark: 21:45 - 03:47

Total Clouds (% Sky Obscured)

84
25
22
20
17
12
4
4
3
4
4
4
17
35
39
64
70
78
85
79
73
67
64
60

Low Clouds (% Sky Obscured)

62
6
4
4
5
5
4
4
3
4
4
4
17
35
39
64
70
78
79
71
65
45
47
41

Medium Clouds (% Sky Obscured)

79
16
10
12
9
5
0
0
0
1
1
3
2
2
2
0
18
40
60
61
60
58
48
37

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
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 (%)

8
9
11
5
11
11
5
4
3
0
1
0
0
0
2
4
6
16
2
3
3
3
6
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)

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

Chance of Frost

Temperature (°C)

8
7
6
5
4
3
2
1
0
-1
-1
0
3
5
7
9
10
11
11
12
12
12
12
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
75
81
85
86
88
91
94
96
94
96
96
82
68
57
45
42
41
38
38
35
38
41
49

Pressure (mb)

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

Ozone (du)

414
415
417
413
408
409
405
401
406
410
412
415
417
418
419
419
419
418
418
414
408
407
406
405

Saturday 2

Waning Gibbous 98%

21:23

06:12

19 OK
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 OK
02 OK
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: 05:39, Set: 19:53, Transit: 12:47. Moon - Rise: 21:23, Set: 06:12. Civil Dark: 20:25 - 05:08. Nautical Dark: 21:03 - 04:29. Astro Dark: 21:46 - 03:45

Total Clouds (% Sky Obscured)

42
54
63
73
59
52
40
45
51
54
59
58
50
60
66
79
86
93
99
88
81
79
76
79

Low Clouds (% Sky Obscured)

30
19
11
0
9
18
26
34
43
49
48
40
30
37
43
50
48
48
46
32
21
13
9
4

Medium Clouds (% Sky Obscured)

27
49
63
73
59
44
31
29
27
28
35
37
43
48
52
56
68
79
91
73
50
32
36
43

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
5
9
13
17
24

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 (%)

2
0
0
0
0
0
0
0
0
0
1
1
0
4
5
3
11
13
6
11
10
6
13
15

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)

6
4
3
3
3
3
3
3
3
3
3
3
4
6
6
6
7
8
8
9
9
9
8
7

Chance of Frost

Temperature (°C)

9
7
5
4
2
2
1
0
-0
-1
-1
-0
3
5
6
7
9
9
10
11
11
12
12
11

Feels Like (°C)

6
6
4
3
2
1
-0
-1
-1
-2
-2
-2
1
1
2
2
3
4
4
5
7
7
7
7

Dew Point (°C)

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

Relative Humidity (%)

54
67
76
80
81
83
83
84
86
87
89
87
72
56
51
48
45
45
44
44
47
50
54
58

Pressure (mb)

1012
1012
1013
1013
1013
1013
1013
1013
1013
1012
1012
1013
1013
1012
1012
1012
1011
1011
1010
1010
1010
1009
1009
1009

Ozone (du)

405
404
403
402
403
407
411
412
414
416
416
417
421
420
420
420
419
418
417
415
413
410
408
409

Sunday 3

Waning Gibbous 94%

22:26

06:51

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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 05:38, Set: 19:54, Transit: 12:47. Moon - Rise: 22:26, Set: 06:51. Civil Dark: 20:26 - 05:06. Nautical Dark: 21:05 - 04:27. Astro Dark: 21:48 - 03:43

Total Clouds (% Sky Obscured)

81
87
94
100
93
87
82
86
90
95
89
87
83
87
90
93
90
87
85
74
64
54
56
61

Low Clouds (% Sky Obscured)

4
10
17
23
17
10
0
16
32
48
43
39
35
31
28
24
19
16
15
11
14
13
21
29

Medium Clouds (% Sky Obscured)

49
66
83
100
68
36
9
29
50
70
64
57
52
61
67
70
49
28
7
4
4
5
8
16

High Clouds (% Sky Obscured)

35
57
76
100
93
64
52
51
51
48
36
22
4
0
0
0
1
1
0
6
7
9
12
13

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
14
11
1
5
9
13
19
17
11
18
18
14
14
11
0
7
8
4
11
12
5
10
12

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)

6
5
5
4
4
3
4
4
4
4
4
6
7
8
8
9
10
11
11
12
11
11
10
7

Chance of Frost

Temperature (°C)

9
8
7
6
4
4
4
4
4
4
3
5
6
7
9
11
13
14
14
15
15
15
15
13

Feels Like (°C)

6
6
3
2
2
2
2
1
1
2
1
1
0
0
5
6
7
7
8
9
11
10
9
10

Dew Point (°C)

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

Relative Humidity (%)

63
70
72
76
79
77
77
76
80
85
88
79
71
64
61
57
54
54
54
54
52
48
45
53

Pressure (mb)

1009
1010
1010
1010
1010
1010
1010
1010
1010
1010
1009
1009
1009
1009
1009
1008
1008
1008
1007
1007
1007
1007
1006
1006

Ozone (du)

410
411
412
414
416
414
412
410
408
406
404
404
404
404
406
407
409
410
412
413
413
412
412
413

Monday 4

Waning Gibbous 89%

23:24

07:38

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
12 Bad
13 Bad

Sun - Rise: 05:36, Set: 19:56, Transit: 12:47. Moon - Rise: 23:24, Set: 07:38. Civil Dark: 20:27 - 05:05. Nautical Dark: 21:06 - 04:25. Astro Dark: 21:50 - 03:41

Total Clouds (% Sky Obscured)

67
75
81
88
92
96
100
97
88
82
82
83
83
80
77
71
71
72
74

Low Clouds (% Sky Obscured)

36
24
13
2
17
36
65
69
68
67
73
81
83
80
73
63
61
56
52

Medium Clouds (% Sky Obscured)

24
39
43
46
55
62
70
73
71
68
55
45
34
31
26
23
28
32
47

High Clouds (% Sky Obscured)

13
39
68
88
92
95
94
64
40
17
21
12
3
2
1
0
33
65
74

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
8
8
8
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

Precipitation Type

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

Precipitation Probability (%)

10
15
15
8
10
10
5
31
47
62
62
56
36
33
33
28
32
31
20

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

5
4
4
4
5
5
5
5
4
3
3
4
5
6
8
10
11
11
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

5
6
6
6
6
5
5
5
5
5
5
6
6
6
4
4
2
2
2

Relative Humidity (%)

63
74
78
84
87
87
87
87
90
93
94
96
94
94
78
67
55
50
44

Pressure (mb)

1007
1007
1007
1007
1007
1006
1006
1005
1005
1005
1005
1005
1006
1006
1006
1006
1006
1006
1006

Ozone (du)

414
416
417
419
420
420
419
418
418
418
418
421
423
426
423
420
417
414
410

Forecast for Chester, Windsor, United States of America (43.26,-72.60)

Generated: 28/04/26 19:26:27. Forecast: 28/04/26 to 04/05/26. Timezone: UTC-4.00