Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 19

Waxing Crescent 16%

07:40

23:03

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

Sun - Rise: 05:58, Set: 19:38, Transit: 12:49. Moon - Rise: 07:40, Set: 23:03. Civil Dark: 20:08 - 05:28. Nautical Dark: 20:45 - 04:51. Astro Dark: 21:24 - 04:12

Total Clouds (% Sky Obscured)

100
100
89
28
21
9
2
3
0
0
1
2
2
4
34
39
38
70
79
100
93
99
100
85

Low Clouds (% Sky Obscured)

89
89
39
28
21
9
1
1
0
0
1
1
1
0
34
39
37
52
58
100
77
97
96
76

Medium Clouds (% Sky Obscured)

100
30
0
4
0
0
0
0
0
0
0
0
0
1
12
27
21
28
37
80
60
66
85
32

High Clouds (% Sky Obscured)

65
1
37
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)

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

Light Rain
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 (%)

95
69
14
7
3
2
0
0
0
0
0
0
0
1
2
4
6
10
12
10
25
19
33
37

Precipitation Amount (mm)

0.8
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
6
9
7
7
9
9
8
7
3
2
2
3
3
3
7
9
9
10
9
9
8
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
91
86
86
89
86
85
83
81
80
84
84
86
86
87
83
68
56
48
46
45
41
38
46

Pressure (mb)

1010
1011
1011
1012
1013
1014
1015
1015
1015
1016
1016
1017
1017
1017
1018
1019
1020
1020
1020
1021
1021
1021
1020
1020

Ozone (du)

327
335
343
354
359
363
361
369
381
389
392
392
393
393
400
405
408
408
407
405
406
407
408
408

Monday 20

Waxing Crescent 16%

08:39

00:18

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

Sun - Rise: 05:56, Set: 19:39, Transit: 12:48. Moon - Rise: 08:39, Set: 00:18. Civil Dark: 20:09 - 05:26. Nautical Dark: 20:46 - 04:49. Astro Dark: 21:26 - 04:10

Total Clouds (% Sky Obscured)

67
76
79
57
10
3
0
0
0
0
0
0
0
0
1
4
5
3
12
75
45
67
29
46

Low Clouds (% Sky Obscured)

66
50
50
46
3
3
0
0
0
0
0
0
0
0
0
0
0
0
0
3
0
0
3
27

Medium Clouds (% Sky Obscured)

31
59
49
20
7
0
0
0
0
0
0
0
0
0
0
0
3
1
10
56
42
67
28
40

High Clouds (% Sky Obscured)

0
0
3
1
0
0
0
0
0
0
0
0
0
0
1
1
2
1
1
14
1
1
0
1

ISS Passover

Visibility (miles)

3
6
6
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 (%)

26
12
16
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
8
8
5
4
3
2
2
2
2
2
2
2
1
1
1
1
1
2
3
4
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-4
-5
-4
-3
-3
-4
-5
-5
-6
-6
-7
-8
-9
-9
-9
-10
-10
-13
-14
-13
-13
-12
-10
-9

Relative Humidity (%)

48
47
51
60
69
77
77
78
78
78
76
73
72
70
70
60
45
30
25
23
23
23
25
26

Pressure (mb)

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

Ozone (du)

412
420
429
433
435
435
436
441
451
462
465
458
442
431
421
412
408
402
400
396
393
391
388
386

Tuesday 21

Waxing Crescent 26%

09:50

01:19

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
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 05:55, Set: 19:40, Transit: 12:48. Moon - Rise: 09:50, Set: 01:19. Civil Dark: 20:11 - 05:25. Nautical Dark: 20:48 - 04:48. Astro Dark: 21:27 - 04:08

Total Clouds (% Sky Obscured)

68
82
94
95
99
96
95
95
99
100
100
100
100
99
100
100
99
99
99
99
99
100
97
94

Low Clouds (% Sky Obscured)

29
23
45
34
60
70
75
68
80
69
79
82
85
88
100
100
93
85
84
85
91
87
88
92

Medium Clouds (% Sky Obscured)

57
75
92
93
99
94
91
89
89
100
100
100
100
90
67
65
56
49
32
36
32
35
26
14

High Clouds (% Sky Obscured)

15
15
13
1
8
15
22
71
48
98
100
100
100
91
62
35
38
28
45
58
18
4
10
3

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
6
3
9
9
9
9
6
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
Snow
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
1
0
3
17
9
4
11
41
58
60
41
35
16
26
12
16
3
4
1
2
0
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

28
31
39
50
55
58
67
71
73
71
89
94
96
94
96
96
98
96
88
90
87
83
80
74

Pressure (mb)

1022
1022
1022
1022
1022
1023
1022
1022
1021
1020
1020
1020
1019
1018
1018
1018
1018
1018
1017
1017
1016
1016
1015
1014

Ozone (du)

382
380
378
375
374
374
374
373
372
372
374
380
388
391
391
388
387
385
385
387
388
389
390
392

Wednesday 22

Waxing Crescent 37%

11:06

02:07

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

Sun - Rise: 05:53, Set: 19:42, Transit: 12:48. Moon - Rise: 11:06, Set: 02:07. Civil Dark: 20:12 - 05:23. Nautical Dark: 20:49 - 04:46. Astro Dark: 21:29 - 04:06

Total Clouds (% Sky Obscured)

90
89
65
57
53
52
47
43
41
38
50
73
90
74
55
29
24
10
15
15
20
20
17
25

Low Clouds (% Sky Obscured)

90
89
55
32
17
10
12
12
12
14
17
24
30
20
10
0
0
0
0
0
1
1
0
0

Medium Clouds (% Sky Obscured)

14
17
21
24
23
29
31
20
9
0
15
29
52
48
35
17
12
6
0
0
0
0
0
1

High Clouds (% Sky Obscured)

5
3
1
1
0
0
0
0
0
0
20
43
64
42
21
0
0
0
0
0
0
0
0
5

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
6
2
1
3
3
3
6
5
2
6
10
12
17
15
7
10
8
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
5
4
4
3
3
2
2
2
2
2
2
3
3
4
5
7
10
11
12
12
12
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
70
73
81
87
91
94
93
94
94
94
94
94
93
94
90
78
60
47
44
42
40
38
37

Pressure (mb)

1014
1013
1013
1014
1014
1015
1015
1015
1015
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014

Ozone (du)

393
393
392
393
394
393
390
388
387
386
386
386
385
384
383
383
381
379
377
374
372
373
373
372

Thursday 23

First Quarter 49%

12:22

02:43

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

Sun - Rise: 05:52, Set: 19:43, Transit: 12:48. Moon - Rise: 12:22, Set: 02:43. Civil Dark: 20:13 - 05:21. Nautical Dark: 20:50 - 04:44. Astro Dark: 21:31 - 04:03

Total Clouds (% Sky Obscured)

25
30
22
25
29
34
42
38
39
44
56
74
88
72
56
39
47
42
44
40
37
33
31
27

Low Clouds (% Sky Obscured)

0
1
10
10
12
11
15
14
21
25
27
16
9
19
29
39
47
42
44
40
37
33
31
27

Medium Clouds (% Sky Obscured)

8
9
17
20
3
4
2
7
5
2
29
57
65
24
4
0
1
2
2
1
1
0
0
0

High Clouds (% Sky Obscured)

5
5
9
15
15
25
30
38
39
44
46
35
25
25
25
34
25
13
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
5
2
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
8
6
5
5
4
3
3
3
3
3
3
4
5
6
7
8
10
11
11
11
11
11

Chance of Frost

Temperature (°C)

13
13
11
9
7
6
4
4
3
2
2
2
1
1
2
3
5
6
7
8
9
10
10
10

Feels Like (°C)

9
8
8
7
4
3
2
1
0
-1
-1
-1
-1
0
-1
-2
-2
4
3
3
3
4
4
8

Dew Point (°C)

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

Relative Humidity (%)

38
39
48
60
69
75
77
77
79
79
76
77
78
80
72
63
57
48
39
33
31
29
27
31

Pressure (mb)

1013
1013
1014
1014
1015
1015
1016
1016
1015
1015
1015
1013
1013
1013
1013
1013
1012
1012
1011
1011
1011
1010
1010
1010

Ozone (du)

370
369
370
370
370
370
372
373
373
375
376
378
379
380
383
386
389
394
400
405
408
411
414
407

Friday 24

Waxing Gibbous 60%

13:36

03:11

16 OK
17 OK
18 Good
19 Good
20 Good
21 Good
22 Good
23 OK
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

Sun - Rise: 05:50, Set: 19:44, Transit: 12:48. Moon - Rise: 13:36, Set: 03:11. Civil Dark: 20:15 - 05:20. Nautical Dark: 20:52 - 04:42. Astro Dark: 21:32 - 04:01

Total Clouds (% Sky Obscured)

23
17
15
13
13
12
12
35
54
75
79
93
92
81
75
68
55
49
44
43
48
51
62
74

Low Clouds (% Sky Obscured)

23
17
15
13
13
12
9
16
26
45
45
49
63
47
26
4
10
17
24
31
46
51
62
74

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
14
29
43
34
25
16
12
7
4
2
1

High Clouds (% Sky Obscured)

0
0
0
0
0
2
2
3
2
5
2
1
0
6
12
18
14
6
1
1
1
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
1
1
0
1
1
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)

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

Chance of Frost

Temperature (°C)

10
10
9
7
5
4
3
2
2
2
2
1
0
-1
2
4
6
7
9
11
12
13
14
14

Feels Like (°C)

8
7
8
9
9
2
3
3
2
1
-0
-1
-1
-2
-1
1
2
5
5
6
7
8
8
12

Dew Point (°C)

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

Relative Humidity (%)

33
37
46
57
72
77
83
89
86
83
80
81
81
84
78
73
68
62
56
50
47
44
41
44

Pressure (mb)

1010
1010
1011
1012
1012
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1014
1014
1013
1012
1012
1011
1011

Ozone (du)

399
392
394
396
397
399
400
401
401
400
400
401
401
402
399
397
394
393
392
391
392
392
393
394

Saturday 25

Waxing Gibbous 70%

14:46

03:35

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: 05:49, 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)

82
83
82
81
87
94
100
95
91
88
92
97
100
100
100
100

Low Clouds (% Sky Obscured)

81
81
78
78
80
83
90
87
84
81
84
87
90
92
94
95

Medium Clouds (% Sky Obscured)

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
3
6
9

ISS Passover

Visibility (miles)

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

Precipitation Type

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
1
1
4
5
4

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
12
11
9
8
7
7
6
6
5
4
4
4
5
5
6

Feels Like (°C)

12
11
11
11
11
4
4
4
4
4
5
1
2
2
2
2

Dew Point (°C)

2
3
3
3
3
3
2
2
2
2
2
2
1
1
1
2

Relative Humidity (%)

48
51
56
63
70
71
72
72
76
79
85
82
79
78
75
72

Pressure (mb)

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

Ozone (du)

396
397
396
394
393
391
389
387
386
385
384
382
380
377
374
372

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

Generated: 19/04/26 15:56:21. Forecast: 19/04/26 to 25/04/26. Timezone: UTC-4.00