Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 28

Waxing Gibbous 94%

17:00

04:32

12 Good
13 OK
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 OK
08 OK
09 OK
10 Good
11 OK

Sun - Rise: 05:44, Set: 19:49, Transit: 12:47. Moon - Rise: 17:00, 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)

7
41
77
96
100
100
100
100
91
88
71
59
83
83
80
72
68
71
50
37
28
35
10
45

Low Clouds (% Sky Obscured)

3
0
26
26
41
45
50
20
7
6
5
7
25
35
45
25
10
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
1
21
100
100
100
100
86
77
44
59
57
49
45
34
33
39
16
0
0
8
0
26

High Clouds (% Sky Obscured)

7
41
73
96
100
100
100
100
60
65
60
0
1
0
0
0
0
0
0
0
10
9
6
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 (%)

0
0
0
0
0
0
4
2
4
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)

12
11
10
10
9
9
9
9
9
6
3
3
3
2
2
1
2
1
2
2
2
2
5
5

Chance of Frost

Temperature (°C)

19
20
20
21
21
19
18
16
13
11
10
8
7
7
6
5
5
4
4
5
8
11
13
15

Feels Like (°C)

16
18
17
17
17
16
15
12
9
8
7
5
6
4
3
3
3
2
2
3
6
10
12
15

Dew Point (°C)

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

Relative Humidity (%)

45
43
42
43
43
49
54
57
56
55
60
61
62
58
60
64
65
66
67
65
60
53
49
49

Pressure (mb)

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

Ozone (du)

339
338
337
336
335
336
335
334
337
337
339
340
345
356
360
361
362
362
358
360
361
360
364
369

Wednesday 29

Waxing Gibbous 98%

18:06

04:52

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: 05:43, Set: 19:50, Transit: 12:47. Moon - Rise: 18:06, 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)

70
100
93
100
100
100
100
100
100
100
100
100
100
100
100
100
99
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

11
20
28
50
71
67
34
62
49
54
92
89
58
99
100
98
99
100
96
99
100
100
100
100

Medium Clouds (% Sky Obscured)

38
54
68
80
80
85
100
100
100
100
100
100
100
100
100
100
94
93
56
100
100
86
83
97

High Clouds (% Sky Obscured)

39
100
66
100
100
100
66
100
100
100
100
100
100
100
100
100
30
66
23
0
35
25
41
37

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
56
72
45
31
74
70
0
0
0

Precipitation Type

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

Precipitation Probability (%)

0
0
0
0
0
1
1
2
2
0
2
10
34
95
95
95
95
95
95
90
66
73
52
42

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.9
3.5
2.7
1
0.8
1.8
0.5
0.2
0.4
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
19
19
19
17
16
15
13
12
11
10
10
9
8
8
7
7
7
7
7
7
8
8
8

Feels Like (°C)

17
18
16
17
15
14
13
11
9
8
7
7
7
6
6
6
5
5
5
5
5
6
6
7

Dew Point (°C)

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

Relative Humidity (%)

47
46
45
45
50
58
63
71
72
75
77
80
84
88
90
96
98
96
96
96
96
96
96
95

Pressure (mb)

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

Ozone (du)

369
366
368
364
365
365
366
369
369
366
368
365
363
364
365
370
375
383
385
384
382
383
383
381

Thursday 30

Waxing Gibbous 100%

19:12

05:14

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: 05:42, 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)

100
96
91
96
80
85
71
72
65
84
79
73
69
62
56
62
82
79
83
79
62
62
96
94

Low Clouds (% Sky Obscured)

100
96
90
82
80
85
71
72
65
84
79
73
69
62
56
62
75
76
78
76
59
60
92
90

Medium Clouds (% Sky Obscured)

66
70
9
60
41
50
26
32
29
27
33
33
18
7
0
0
0
0
0
0
6
12
12
23

High Clouds (% Sky Obscured)

5
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
8
9
9
9
9
8
7
9
9
9
9
9
9
9
9
5
3
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

29
38
31
34
27
16
15
36
47
48
33
29
20
14
2
2
3
5
5
7
11
20
20
26

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
9
9
10
10
8
8
8
7
7
6
6
5
4
3
1
1
0
0
2
3
5
5
5

Dew Point (°C)

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

Relative Humidity (%)

95
95
93
95
93
88
91
90
93
95
96
95
94
94
93
93
94
94
96
94
91
75
58
55

Pressure (mb)

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

Ozone (du)

380
379
379
379
381
381
385
387
387
390
390
390
391
392
396
399
400
401
400
399
402
404
408
409

Friday 1

Full Moon 100%

20:18

05:40

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

98
100
95
90
85
82
82
59
35
22
7
6
4
2
19
36
53
46
37
28
42
68
83
88

Low Clouds (% Sky Obscured)

96
95
87
86
71
80
82
44
7
8
4
4
4
2
4
5
4
3
5
6
8
68
67
56

Medium Clouds (% Sky Obscured)

26
35
25
15
85
26
19
22
15
11
3
2
1
0
12
24
43
45
37
28
31
33
35
54

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
17
35
52
68

ISS Passover

Visibility (miles)

9
9
9
9
8
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 (%)

27
35
34
42
41
35
28
6
4
6
0
2
0
0
0
0
0
0
1
0
2
18
17
8

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

1
-0
-1
0
0
1
2
2
2
2
2
1
0
-0
-0
-0
-1
-1
0
0
-0
-1
-1
-1

Relative Humidity (%)

54
48
44
49
50
51
58
64
70
79
82
83
86
91
94
94
96
96
96
82
67
55
49
43

Pressure (mb)

1010
1010
1009
1009
1010
1010
1010
1011
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1013
1013
1012

Ozone (du)

409
408
414
416
418
419
419
420
418
418
417
413
409
405
405
409
411
413
414
419
421
420
419
417

Saturday 2

Waning Gibbous 98%

21:23

06:12

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: 05:39, 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)

94
100
100
100
100
100
100
79
77
77
72
71
65
56
77
73
65
62
59
49
56
60
73
82

Low Clouds (% Sky Obscured)

40
20
25
20
15
15
15
2
4
8
11
7
3
1
0
0
0
0
0
0
19
39
58
40

Medium Clouds (% Sky Obscured)

74
93
94
89
90
85
70
70
65
60
60
60
55
55
77
72
52
27
8
7
7
6
3
4

High Clouds (% Sky Obscured)

84
100
100
95
95
95
85
79
57
25
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
8
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 (%)

7
15
9
16
10
25
11
3
0
0
0
0
0
0
1
1
0
0
0
0
2
2
2
8

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

41
44
41
44
44
48
62
64
75
82
83
86
86
86
88
88
88
89
74
62
53
50
48
46

Pressure (mb)

1012
1011
1011
1011
1010
1010
1010
1011
1011
1011
1011
1011
1011
1011
1011
1009
1009
1009
1009
1009
1009
1008
1008
1007

Ozone (du)

416
415
413
408
406
407
409
412
412
412
413
414
413
411
411
412
413
414
415
416
417
418
418
419

Sunday 3

Waning Gibbous 94%

22:26

06:51

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: 05:38, 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)

91
100
100
100
100
91
82
72
68
65
61
69
78
89
87
86
80
75
71
67
73
84
96
97

Low Clouds (% Sky Obscured)

23
5
3
6
10
22
35
47
32
16
2
15
30
49
52
55
57
43
28
17
33
45
58
64

Medium Clouds (% Sky Obscured)

5
6
24
46
69
64
58
52
48
43
38
58
78
89
87
83
75
73
70
67
73
84
96
97

High Clouds (% Sky Obscured)

0
0
2
4
7
7
4
0
9
31
50
48
28
45
19
7
1
7
13
18
16
9
2
2

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
7
6
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
None
None
None
None

Precipitation Probability (%)

10
11
12
11
6
11
12
9
13
11
4
5
8
5
15
17
11
18
18
11
17
17
15
24

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

46
47
47
47
47
46
58
73
90
91
93
94
94
96
96
96
96
96
89
82
75
69
62
57

Pressure (mb)

1007
1006
1006
1006
1006
1006
1006
1006
1007
1007
1007
1008
1007
1007
1007
1007
1007
1006
1006
1007
1007
1006
1006
1006

Ozone (du)

417
415
412
412
411
411
411
410
410
409
408
407
410
412
415
415
415
415
414
414
414
414
413
413

Monday 4

Waning Gibbous 89%

23:24

07:38

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 OK
07 Good

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)

99
100
99
97
96
85
74
65
56
47
41
47
50
53
54
52
53
38
24
10

Low Clouds (% Sky Obscured)

83
90
85
83
74
61
48
37
33
30
25
34
43
52
53
52
53
38
24
10

Medium Clouds (% Sky Obscured)

99
100
94
87
80
69
60
50
34
19
4
2
1
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

3
1
27
50
75
75
74
65
56
47
41
47
50
30
0
0
0
1
1
2

ISS Passover

Visibility (miles)

6
7
8
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

Precipitation Type

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

Precipitation Probability (%)

29
36
40
42
43
44
43
41
49
58
44
60
70
78
69
53
6
8
7
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

57
59
61
61
62
62
65
71
75
78
80
83
83
82
80
83
88
91
80
71

Pressure (mb)

1005
1005
1004
1004
1004
1004
1005
1005
1006
1006
1006
1007
1007
1007
1007
1007
1008
1008
1009
1009

Ozone (du)

414
415
415
415
414
413
414
415
416
418
419
420
417
413
410
406
403
399
402
404

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

Generated: 28/04/26 12:42:26. Forecast: 28/04/26 to 04/05/26. Timezone: UTC-4.00