Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 25

Waxing Gibbous 70%

13:36

03:35

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 05:49, Set: 19:45, Transit: 12:48. Moon - Rise: 13:36, Set: 03:35. Civil Dark: 20:16 - 05:18. Nautical Dark: 20:53 - 04:40. Astro Dark: 21:34 - 03:59

Total Clouds (% Sky Obscured)

65
100
100
100
100
100
100
100
100
100
100
100
98
100
100
96
100
100
100
96
82
86
87
82

Low Clouds (% Sky Obscured)

0
0
13
10
15
12
18
13
8
9
1
1
1
1
2
4
1
1
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

65
100
100
100
100
100
100
100
100
100
100
99
92
100
100
94
100
100
100
95
82
86
79
64

High Clouds (% Sky Obscured)

65
99
100
99
100
100
100
100
90
99
68
86
97
100
55
45
18
45
1
0
1
15
70
58

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
1
1
0
0
0
1
1
1
2
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-1
-1
-1
1
2
2
2
4
5
5
5
5
4
5
4
4
4
4
4
4
4
4
4
4

Relative Humidity (%)

53
49
46
46
48
50
52
58
68
77
82
85
87
91
90
90
91
94
96
96
90
75
66
57

Pressure (mb)

1018
1017
1017
1017
1016
1016
1016
1016
1016
1017
1018
1018
1018
1018
1019
1019
1019
1019
1019
1020
1020
1021
1021
1021

Ozone (du)

350
347
348
349
351
352
355
357
364
369
369
368
365
364
365
368
370
371
371
372
373
374
374
372

Sunday 26

Waxing Gibbous 80%

14:46

03:55

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

Sun - Rise: 05:47, Set: 19:46, Transit: 12:48. Moon - Rise: 14:46, Set: 03:55. Civil Dark: 20:17 - 05:17. Nautical Dark: 20:55 - 04:39. Astro Dark: 21:36 - 03:57

Total Clouds (% Sky Obscured)

68
69
91
79
73
91
79
38
44
48
20
38
66
63
54
48
38
54
56
10
3
3
2
3

Low Clouds (% Sky Obscured)

38
38
53
54
37
43
28
22
44
48
19
9
39
63
54
48
38
54
56
10
3
3
2
3

Medium Clouds (% Sky Obscured)

65
67
78
60
63
78
70
23
3
0
0
15
15
2
1
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

4
4
16
66
70
60
60
7
3
2
7
10
28
34
16
1
2
6
2
0
0
0
0
1

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

Chance of Frost

Temperature (°C)

14
15
16
17
17
17
17
16
15
12
9
8
7
6
5
5
4
4
3
3
4
9
12
14

Feels Like (°C)

12
15
15
15
15
15
15
14
14
10
8
7
6
5
4
3
3
2
2
1
4
9
12
14

Dew Point (°C)

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

Relative Humidity (%)

49
44
40
39
39
40
48
57
66
68
74
82
88
82
75
75
75
77
79
82
77
65
57
51

Pressure (mb)

1020
1020
1019
1019
1019
1019
1019
1019
1020
1021
1022
1023
1023
1024
1024
1024
1024
1024
1025
1025
1026
1026
1026
1026

Ozone (du)

372
373
374
373
372
374
377
377
375
374
374
374
375
376
377
375
375
374
374
376
376
377
376
376

Monday 27

Waxing Gibbous 88%

15:54

04:13

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

Sun - Rise: 05:46, Set: 19:48, Transit: 12:47. Moon - Rise: 15:54, Set: 04:13. Civil Dark: 20:18 - 05:15. Nautical Dark: 20:56 - 04:37. Astro Dark: 21:38 - 03:55

Total Clouds (% Sky Obscured)

6
20
18
31
40
57
57
46
40
40
32
3
3
3
1
1
22
14
19
18
6
10
20
13

Low Clouds (% Sky Obscured)

6
20
18
31
40
57
57
46
40
40
32
3
3
3
1
1
3
3
3
18
4
3
3
2

Medium 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

High Clouds (% Sky Obscured)

1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
14
9
11
3
2
6
16
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
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)

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

Chance of Frost

Temperature (°C)

16
18
19
19
19
19
18
17
15
13
11
9
8
7
6
5
5
4
3
3
4
8
11
13

Feels Like (°C)

16
17
17
18
17
16
15
14
14
11
10
8
8
7
6
6
5
4
4
3
5
9
11
12

Dew Point (°C)

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

Relative Humidity (%)

47
43
41
40
41
52
58
62
68
71
73
78
87
90
91
93
94
94
94
96
85
70
58
50

Pressure (mb)

1025
1025
1024
1024
1023
1023
1024
1024
1024
1025
1026
1026
1026
1026
1025
1025
1025
1025
1025
1026
1025
1025
1024
1023

Ozone (du)

377
379
381
380
379
380
381
382
381
380
381
379
379
380
380
375
372
365
362
362
358
354
354
351

Tuesday 28

Waxing Gibbous 94%

17:00

04:32

11 Good
12 OK
13 OK
14 OK
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

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)

18
27
29
32
90
57
90
100
100
100
100
100
100
100
100
96
91
87
89
92
94
92
91
89

Low Clouds (% Sky Obscured)

4
5
4
3
0
0
0
0
0
0
0
0
0
0
68
78
78
79
84
90
94
91
87
78

Medium Clouds (% Sky Obscured)

0
0
0
5
7
13
20
29
40
34
36
31
28
60
69
71
76
62
65
66
74
72
66
60

High Clouds (% Sky Obscured)

18
27
29
32
90
57
90
100
100
100
100
100
100
100
100
68
37
3
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 (%)

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

Chance of Frost

Temperature (°C)

16
17
18
19
18
18
17
15
13
11
9
8
6
5
5
5
5
4
4
4
5
6
8
9

Feels Like (°C)

14
15
16
17
16
13
13
11
9
8
6
5
4
3
3
3
3
2
2
2
3
4
5
7

Dew Point (°C)

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

Relative Humidity (%)

44
42
40
38
35
34
37
42
47
53
57
62
65
70
71
71
71
73
76
77
79
81
82
80

Pressure (mb)

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

Ozone (du)

351
349
348
348
347
346
346
345
345
344
345
345
346
346
346
345
346
352
358
365
365
366
369
372

Wednesday 29

Waxing Gibbous 98%

18:06

04:52

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 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)

92
96
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

67
51
31
47
55
65
75
86
97
98
99
100
96
93
91
100
100
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

57
48
44
54
60
69
78
66
71
65
63
99
100
100
100
100
100
100
99
98
97
98
99
99

High Clouds (% Sky Obscured)

33
67
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
8
6
8
7
3
2
2
2
1
1
1
1
1

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

Precipitation Probability (%)

0
0
0
0
0
0
4
7
8
21
43
83
90
89
95
52
59
65
85
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.5
0.6
0.6
0.8
0
0.2
0.3
0.5
0.8
1.1
1.2
1.4
1.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
8
9
9
9
9
9
8
7
6
6
6
6
6
6
6
5
5
5
5
5
5
6
6

Relative Humidity (%)

76
76
75
74
74
79
83
87
90
93
93
94
96
98
98
98
98
98
98
98
98
96
98
96

Pressure (mb)

1016
1014
1013
1012
1012
1011
1011
1011
1011
1011
1011
1010
1010
1009
1008
1008
1009
1009
1008
1008
1007
1007
1006
1005

Ozone (du)

374
371
371
374
373
369
368
370
369
372
373
372
372
369
370
365
363
362
360
360
359
359
360
361

Thursday 30

Waxing Gibbous 100%

19:12

05:14

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 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
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
100
96
93
89
86
84
83
84
84
87
88
89
90
90
90
93
95
95
94
94
96
98

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
94
88
82
55
28
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
96
85
76
68
76
51
65
73
75
75
75
75
75
85
95

ISS Passover

Visibility (miles)

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

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

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

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
95
95
95
89
66
88
90
71
68
66
65
63
60
54

Precipitation Amount (mm)

1.5
1.5
1.8
2.2
2.4
3.1
2.7
2.5
2.5
1.6
1.2
0.8
0.7
0.5
0.2
0.5
0.5
0.2
0.2
0.2
0.2
0.2
0
0

Wind Speed/Direction (mph)

5
4
4
4
4
4
5
5
5
5
5
4
4
4
4
4
4
4
4
5
5
5
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
4
4
4
5
5
5
5
4
5
4
4
4
5
5
5
5
5
5
5
5
5
5
4

Dew Point (°C)

6
6
6
6
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
6
6
6
6

Relative Humidity (%)

96
96
96
96
96
96
96
98
98
98
98
98
98
98
98
100
98
98
98
98
98
96
96
96

Pressure (mb)

1005
1004
1004
1003
1003
1002
1002
1002
1002
1001
1001
1001
1001
1001
1000
1000
1000
1000
1000
1000
1000
1000
1001
1001

Ozone (du)

362
363
364
366
367
368
369
369
369
369
371
374
376
378
380
383
384
385
386
387
388
389
390
392

Friday 1

Full Moon 100%

20:18

05:40

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 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)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

97
99
99
99
100
100
100
100
100
99
99
99
99
99
99
99
99
98
99
99
100

Medium Clouds (% Sky Obscured)

22
49
68
79
89
100
80
60
40
27
14
1
1
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

95
85
80
80
75
75
75
85
90
100
100
100
85
70
30
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

77
88
91
95
95
95
94
93
95
95
95
95
95
95
95
95
85
72
57
45
35

Precipitation Amount (mm)

0.4
0.5
0.4
0.6
0.7
0.7
0.5
0.5
0.7
0.9
0.9
0.8
0.8
0.9
1
0.6
0.4
0.2
0
0
0

Wind Speed/Direction (mph)

6
6
6
6
6
6
5
5
5
5
5
4
4
4
4
4
4
4
3
3
3

Chance of Frost

Temperature (°C)

6
6
5
5
5
4
4
4
4
3
3
3
3
3
3
3
3
3
3
3
3

Feels Like (°C)

5
4
4
4
2
2
2
2
2
1
1
0
0
0
1
1
0
0
0
0
1

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

1001
1002
1002
1003
1003
1004
1004
1005
1006
1007
1007
1008
1008
1008
1009
1009
1009
1009
1009
1010
1010

Ozone (du)

394
394
394
394
394
394
394
394
395
396
397
398
399
399
400
401
402
404
405
404
404

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

Generated: 25/04/26 11:53:33. Forecast: 25/04/26 to 01/05/26. Timezone: UTC-4.00