Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 25

Waxing Gibbous 70%

14:46

03:35

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 OK
11 OK
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 05:49, Set: 19:45, Transit: 12:48. Moon - Rise: 14:46, 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)

100
100
100
100
100
100
100
100
100
86
91
81
95
70
80
59
45
43
51
86
90
95
65
59

Low Clouds (% Sky Obscured)

37
43
51
31
1
1
1
1
2
2
1
1
1
0
0
0
8
42
51
21
0
23
0
0

Medium Clouds (% Sky Obscured)

94
100
100
100
100
100
100
100
100
86
90
81
94
55
70
50
34
19
34
55
85
84
60
51

High Clouds (% Sky Obscured)

100
100
100
98
100
100
70
100
100
0
0
0
0
0
36
28
4
6
2
30
53
70
65
59

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 (%)

1
0
0
0
0
1
1
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)

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

Chance of Frost

Temperature (°C)

11
11
9
8
8
7
7
6
5
4
4
4
3
4
7
10
13
14
16
17
17
17
17
17

Feels Like (°C)

9
8
7
7
6
5
4
3
3
3
3
2
2
2
5
8
10
13
15
16
15
14
14
15

Dew Point (°C)

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

Relative Humidity (%)

56
66
70
73
77
81
82
86
89
94
94
96
96
91
77
66
56
46
42
39
38
39
41
53

Pressure (mb)

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

Ozone (du)

368
372
369
366
366
364
364
366
369
372
372
371
374
375
375
376
377
377
376
376
376
377
377
378

Sunday 26

Waxing Gibbous 80%

15:54

03:55

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

Sun - Rise: 05:47, Set: 19:46, Transit: 12:47. Moon - Rise: 15:54, 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)

62
43
29
32
19
29
50
54
43
16
8
7
7
4
3
2
4
36
34
34
59
61
61
56

Low Clouds (% Sky Obscured)

14
25
29
26
18
29
50
54
43
16
7
4
4
3
3
2
4
36
34
34
59
61
61
56

Medium Clouds (% Sky Obscured)

45
17
1
1
1
4
8
7
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

62
43
29
32
10
6
7
7
2
3
2
3
2
1
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 (%)

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)

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

Chance of Frost

Temperature (°C)

16
15
12
9
8
7
6
5
5
3
3
3
2
4
9
12
15
17
18
19
20
20
19
19

Feels Like (°C)

14
13
10
7
6
6
5
4
3
2
2
2
2
4
9
12
14
16
16
17
18
17
16
15

Dew Point (°C)

8
8
6
5
4
4
3
1
1
-0
1
1
1
0
3
5
5
6
6
6
6
7
9
9

Relative Humidity (%)

57
62
67
73
79
84
81
75
73
77
86
89
89
79
68
60
52
48
45
42
40
43
52
53

Pressure (mb)

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

Ozone (du)

378
379
378
376
375
372
371
372
373
372
370
369
367
368
369
372
374
375
376
376
380
384
381
379

Monday 27

Waxing Gibbous 88%

17:00

04:13

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

Sun - Rise: 05:46, Set: 19:48, Transit: 12:47. Moon - Rise: 17:00, 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)

12
2
2
2
2
2
0
0
17
13
11
60
85
55
30
12
77
32
41
75
100
99
100
100

Low Clouds (% Sky Obscured)

8
2
2
2
2
2
0
0
0
0
0
0
0
0
0
0
0
4
8
2
2
1
0
0

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
11

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
17
13
11
51
83
55
30
12
77
23
41
75
100
99
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)

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

Chance of Frost

Temperature (°C)

17
16
12
11
9
8
7
6
5
4
4
3
3
4
8
11
13
16
17
18
19
18
18
17

Feels Like (°C)

15
16
13
11
9
8
8
6
6
5
4
3
1
2
8
10
11
12
15
15
15
14
13
13

Dew Point (°C)

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

Relative Humidity (%)

57
67
80
85
90
91
93
93
94
94
93
94
94
86
69
58
47
43
36
32
32
31
30
33

Pressure (mb)

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

Ozone (du)

375
375
375
375
373
374
373
373
369
362
358
357
354
354
350
348
345
344
344
344
343
343
344
343

Tuesday 28

Waxing Gibbous 94%

18:06

04:32

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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 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)

100
100
100
100
100
100
100
100
89
76
67
79
87
98
98
98
98
98
99
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
2
4
69
89
9
39
79
87
94
94
95
97
97
97
97
94
92
87
87

Medium Clouds (% Sky Obscured)

18
27
25
18
25
26
21
59
18
20
30
38
81
85
78
77
57
67
77
86
90
90
95
100

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
68
37
5
5
5
1
4
7
11
41
70
100
72
45
17
45

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
6
9
9
4
3
2
2
4
9
5
3

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
1
11
52
47
54
78
65
66
93
74
50
26
36
49

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.4
0
0
0.3
0
0.4
1
0.4
0.2
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
13
11
9
8
6
5
5
5
4
3
2
4
4
5
6
7
9
9
11
11
11
11
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

47
59
66
74
84
88
91
93
89
86
94
91
86
93
96
94
96
96
96
96
96
96
96
96

Pressure (mb)

1019
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1019
1019
1019
1018
1018
1017
1016
1015
1014
1014
1013
1013

Ozone (du)

343
343
341
342
345
344
346
346
346
347
349
353
358
363
367
367
368
365
364
357
360
362
362
362

Wednesday 29

Waxing Gibbous 98%

18:06

04:52

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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 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)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
96
95
95
96
97
96

Low Clouds (% Sky Obscured)

87
88
92
95
99
96
93
90
92
94
95
94
93
93
93
92
92
91
90
89
81
74
68
62

Medium Clouds (% Sky Obscured)

98
97
95
100
93
100
100
100
100
100
100
100
100
100
100
100
100
96
91
84
84
89
93
96

High Clouds (% Sky Obscured)

72
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
95
87
85
82
83
75
65

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

35
29
46
61
74
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0.2
0.3
1
1.6
2.5
2.1
1.7
1.2
1
1.2
1.3
1.8
1.8
1.5
1.5
1.5
1.6
1.4
1.2
1.1
0.8

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
98
98
98
98
100
100
98
98
98
98
98
100
98
98
98
98
98
98
98
98
98
98

Pressure (mb)

1012
1012
1012
1011
1011
1011
1010
1009
1008
1007
1007
1006
1006
1005
1005
1005
1004
1004
1003
1003
1002
1002
1002
1002

Ozone (du)

362
362
362
361
361
361
358
356
356
356
356
358
360
363
364
365
366
366
367
368
368
369
370
371

Thursday 30

Waxing Gibbous 100%

19:12

05:14

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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 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)

97
97
96
96
95
95
94
93
93
92
92
83
86
79
81
74
74
83
87
95
96
96
96
92

Low Clouds (% Sky Obscured)

57
54
53
53
52
44
36
24
26
28
30
27
23
20
18
16
14
13
15
18
16
22
24
26

Medium Clouds (% Sky Obscured)

97
97
96
96
95
95
94
93
80
64
48
40
32
25
18
9
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

63
45
24
24
0
0
32
20
13
6
0
0
0
0
0
0
0
0
0
0
0
0
0
12

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

92
79
82
87
88
92
95
95
75
61
62
56
48
37
40
37
24
24
20
15
19
18
16
25

Precipitation Amount (mm)

0.6
0.4
0.5
0.5
0.6
0.7
0.9
0.8
0.3
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

10
10
9
9
8
8
7
7
7
6
6
6
5
5
5
6
7
7
8
9
10
10
10
9

Feels Like (°C)

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

Dew Point (°C)

10
10
8
8
8
7
7
7
6
6
6
5
5
5
5
6
6
7
7
8
9
9
9
8

Relative Humidity (%)

98
100
98
98
98
98
98
98
98
100
98
96
96
96
94
96
94
94
93
95
93
93
93
93

Pressure (mb)

1003
1003
1003
1003
1003
1003
1003
1002
1002
1002
1002
1003
1003
1003
1004
1004
1004
1004
1004
1004
1004
1004
1005
1005

Ozone (du)

372
372
372
373
375
376
376
376
377
377
378
378
379
380
380
382
384
386
388
390
393
394
395
396

Friday 1

Full Moon 100%

20:18

05:40

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
12 Bad
13 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
77
78
83
87
92
96
100
100
100
100
100
100
100
99
98
98
97
100
100

Low Clouds (% Sky Obscured)

32
42
45
40
45
50
65
95
100
95
90
85
85
80
87
93
95
97
100
100

Medium Clouds (% Sky Obscured)

0
0
6
12
18
46
72
97
98
99
100
99
97
95
94
94
94
91
96
95

High Clouds (% Sky Obscured)

24
33
23
18
10
5
10
10
5
15
20
29
23
9
3
0
0
0
5
9

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

30
31
35
38
36
29
26
27
32
37
42
46
49
49
55
63
68
62
59
61

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
94
94
94
96
96
96
96
96
96
98
98
98
98
96
98
96
94
96

Pressure (mb)

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

Ozone (du)

395
394
393
392
391
390
389
387
386
388
389
391
391
390
389
386
383
380
380
379

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

Generated: 25/04/26 18:11:35. Forecast: 25/04/26 to 01/05/26. Timezone: UTC-4.00