Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 29

Waxing Crescent 6%

06:33

22:54

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

Sun - Rise: 05:44, Set: 19:50, Transit: 12:47. Moon - Rise: 06:33, Set: 22:54. Civil Dark: 20:21 - 05:13. Nautical Dark: 20:59 - 04:35. Astro Dark: 21:41 - 03:53

Total Clouds (% Sky Obscured)

5
8
37
58
53
75
37
35
37
65
7
48
74
100
100
100
99
99
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
13
0
0
16
16
37
44
50
59

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
0
0
0
0
5
8
70
25
44
60
99
57
46
52

High Clouds (% Sky Obscured)

5
8
37
58
53
75
37
35
37
65
7
39
74
100
100
100
50
99
100
100
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
1
4
7
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
Light Rain
Moderate Rain
Light Rain
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
63
95
95
71
41
26

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1.7
2.7
0.4
0
0

Wind Speed/Direction (mph)

6
5
4
3
3
4
4
3
4
6
8
9
11
11
12
12
12
13
12
9
8
9
9
8

Chance of Frost

Temperature (°C)

8
7
7
8
7
7
6
8
12
15
18
21
23
25
26
26
26
25
24
22
20
19
19
18

Feels Like (°C)

7
7
7
5
5
5
3
6
10
13
15
19
21
22
23
24
24
23
22
21
20
18
18
18

Dew Point (°C)

4
3
4
4
4
4
4
4
5
7
7
7
8
10
13
15
16
16
17
18
19
19
18
17

Relative Humidity (%)

77
78
78
78
81
82
83
78
64
55
47
40
38
39
43
48
54
56
62
76
93
98
96
93

Pressure (mb)

1024
1023
1023
1023
1022
1022
1022
1022
1021
1020
1018
1017
1016
1014
1013
1012
1011
1009
1009
1009
1009
1010
1009
1008

Ozone (du)

349
347
345
343
341
341
342
341
341
341
339
339
337
335
336
337
336
335
334
332
331
332
332
332

Wednesday 30

Waxing Crescent 13%

07:22

00:06

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

Sun - Rise: 05:43, Set: 19:51, Transit: 12:47. Moon - Rise: 07:22, Set: 00:06. Civil Dark: 20:22 - 05:12. Nautical Dark: 21:01 - 04:33. Astro Dark: 21:43 - 03:51

Total Clouds (% Sky Obscured)

100
97
97
53
58
98
86
74
47
18
3
2
18
47
40
28
60
26
10
58
62
57
51
59

Low Clouds (% Sky Obscured)

58
66
74
17
22
80
86
74
47
18
3
2
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

47
42
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)

100
41
26
21
31
70
9
0
0
0
0
0
12
28
19
17
30
13
4
42
51
46
39
45

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

Very 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 (%)

58
34
18
3
1
4
3
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.3
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
12
12
14
11
11
13
12
12
12
13
13
13
12
11
11
10
10
8
6
4
3
3
3

Chance of Frost

Temperature (°C)

19
19
19
17
15
13
12
12
10
10
11
12
13
15
15
16
16
15
14
12
9
7
6
5

Feels Like (°C)

17
17
16
13
13
11
7
7
6
5
6
8
9
10
10
11
11
10
11
11
6
5
3
2

Dew Point (°C)

17
17
17
14
12
10
8
9
7
5
3
2
1
0
-1
-1
-1
-1
1
2
2
1
0
-1

Relative Humidity (%)

89
89
88
83
83
84
77
80
78
72
60
51
43
37
33
32
31
33
40
50
59
64
67
68

Pressure (mb)

1007
1007
1007
1008
1009
1010
1011
1013
1014
1015
1016
1016
1016
1016
1016
1016
1016
1017
1018
1018
1020
1021
1022
1022

Ozone (du)

331
331
334
334
336
337
339
345
342
342
343
351
342
340
338
337
333
331
330
328
327
325
323
324

Thursday 1

Waxing Crescent 22%

08:23

00:06

00 Bad
01 Bad
02 OK
03 OK
04 OK
05 OK
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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 05:41, Set: 19:52, Transit: 12:47. Moon - Rise: 08:23, Set: 00:06. Civil Dark: 20:24 - 05:10. Nautical Dark: 21:02 - 04:31. Astro Dark: 21:45 - 03:49

Total Clouds (% Sky Obscured)

78
91
47
37
21
26
51
77
57
67
99
96
92
98
100
100
99
99
100
95
98
99
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
36
60
78
64
44
55
65
19

Medium Clouds (% Sky Obscured)

2
18
10
1
3
1
3
17
20
14
25
42
31
64
61
75
91
74
77
63
55
51
85
90

High Clouds (% Sky Obscured)

75
88
34
20
7
12
41
67
37
52
98
84
83
96
100
100
93
89
74
70
82
93
62
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
2
18
22
45
26
12
8
2
19

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

Chance of Frost

Temperature (°C)

4
3
2
1
0
-0
-1
2
6
10
12
14
16
17
18
19
19
17
15
14
13
12
12
12

Feels Like (°C)

1
-1
-1
-2
-3
-2
-3
-1
4
7
10
12
13
15
15
16
16
14
13
13
11
10
10
10

Dew Point (°C)

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

Relative Humidity (%)

69
69
72
70
70
70
70
61
53
45
38
34
31
28
26
26
26
35
52
56
60
69
73
76

Pressure (mb)

1022
1022
1022
1022
1023
1023
1023
1023
1024
1023
1022
1022
1020
1019
1018
1017
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

326
326
323
323
323
323
321
321
319
317
317
316
315
315
314
314
315
313
314
315
314
313
314
313

Friday 2

Waxing Crescent 33%

09:33

01:04

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 05:40, Set: 19:54, Transit: 12:47. Moon - Rise: 09:33, Set: 01:04. Civil Dark: 20:25 - 05:09. Nautical Dark: 21:04 - 04:30. Astro Dark: 21:47 - 03:47

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
98
96
95
97
98
100
100
98
97
98
100
100
88
94
98
64

Low Clouds (% Sky Obscured)

61
83
97
95
92
31
31
42
54
96
85
91
85
80
87
78
72
55
87
83
22
22
31
29

Medium Clouds (% Sky Obscured)

96
100
96
95
87
80
83
96
90
81
51
45
35
40
39
32
32
37
51
42
29
15
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
76
52
28
52
76
100
99
97
97
98
100
100
88
94
92
61

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
4
1
8
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
Very Light Rain
None
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
Very Light Rain
Light Rain
Moderate Rain
Light Rain
Very Light Rain
None
Light Rain
None
None

Precipitation Probability (%)

31
40
46
49
44
56
53
38
36
39
26
19
15
17
41
70
95
95
95
74
59
71
38
40

Precipitation Amount (mm)

0
0
0
0.2
0
0.4
0.3
0
0
0
0
0
0
0
0
0.3
0.6
5.3
2.3
0.3
0
0.4
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

10
10
9
9
9
9
9
9
10
11
12
14
16
18
20
20
21
22
20
19
18
17
16
16

Feels Like (°C)

8
8
7
7
7
6
6
7
8
9
10
13
14
17
18
19
21
22
19
20
19
18
16
14

Dew Point (°C)

7
6
5
5
4
4
5
5
6
7
10
12
13
14
16
17
18
19
19
18
17
17
15
14

Relative Humidity (%)

77
77
76
73
70
72
75
74
74
76
86
84
82
78
76
80
82
83
92
93
93
95
93
90

Pressure (mb)

1015
1015
1014
1013
1013
1012
1012
1012
1012
1011
1010
1009
1008
1007
1006
1005
1004
1003
1003
1004
1004
1005
1006
1007

Ozone (du)

311
310
309
309
308
308
308
309
309
309
311
312
311
311
312
312
314
316
311
317
318
321
323
324

Saturday 3

Waxing Crescent 44%

10:46

01:48

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 05:39, Set: 19:55, Transit: 12:47. Moon - Rise: 10:46, Set: 01:48. Civil Dark: 20:26 - 05:07. Nautical Dark: 21:05 - 04:28. Astro Dark: 21:49 - 03:45

Total Clouds (% Sky Obscured)

42
24
24
48
48
68
82
100
90
79
71
74
78
83
100
100
100
100
100
100
100
100
100
91

Low Clouds (% Sky Obscured)

27
24
22
25
27
29
32
45
45
44
47
54
66
78
49
40
35
41
47
53
56
59
61
66

Medium Clouds (% Sky Obscured)

0
0
0
0
0
29
50
98
68
77
66
57
53
45
99
99
100
100
100
100
80
60
37
27

High Clouds (% Sky Obscured)

31
0
0
5
5
13
29
37
30
31
30
40
45
60
92
96
100
100
100
100
100
100
100
67

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
8
4
3
5
7
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

31
1
2
1
0
4
7
11
17
28
26
60
95
95
95
95
95
95
95
95
95
72
49
37

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.9
1
0.8
0.8
0.9
1
1.2
1.2
0.7
0.3
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
14
12
11
11
9
10
11
11
13
13
14
14
15
15
14
13
12
12
11
10
10
9
9

Feels Like (°C)

15
14
14
12
10
8
9
10
11
12
11
12
13
14
14
13
13
12
13
13
12
8
8
8

Dew Point (°C)

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

Relative Humidity (%)

90
92
95
93
96
95
96
93
93
87
89
87
79
86
89
89
89
89
90
90
91
91
91
91

Pressure (mb)

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

Ozone (du)

321
321
321
319
319
319
321
324
324
325
325
325
324
325
325
327
329
331
334
337
341
349
357
366

Sunday 4

First Quarter 54%

11:58

02:21

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

Sun - Rise: 05:37, Set: 19:56, Transit: 12:47. Moon - Rise: 11:58, Set: 02:21. Civil Dark: 20:27 - 05:06. Nautical Dark: 21:07 - 04:26. Astro Dark: 21:50 - 03:43

Total Clouds (% Sky Obscured)

83
74
69
62
55
40
27
13
27
40
53
60
68
74
58
37
21
46
67
89
86
81
77
83

Low Clouds (% Sky Obscured)

70
74
65
53
42
37
27
13
27
38
39
41
47
56
47
37
21
22
24
30
34
31
28
25

Medium Clouds (% Sky Obscured)

17
7
12
21
30
20
10
0
1
3
4
3
2
2
1
1
0
0
0
0
5
10
15
23

High Clouds (% Sky Obscured)

33
0
2
4
5
3
1
0
6
22
36
32
39
23
38
33
20
46
67
89
71
42
8
7

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 (%)

26
13
14
13
6
7
5
2
3
3
0
1
1
0
4
5
4
7
6
2
6
4
3
2

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

Chance of Frost

Temperature (°C)

9
8
8
8
7
7
8
8
9
10
11
13
13
14
15
14
13
13
12
11
10
9
8
8

Feels Like (°C)

8
8
8
5
5
5
4
4
3
8
8
8
8
8
8
11
10
9
10
9
9
5
5
5

Dew Point (°C)

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

Relative Humidity (%)

90
87
85
87
87
87
77
67
58
53
50
47
48
49
50
52
54
56
60
65
68
73
75
79

Pressure (mb)

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

Ozone (du)

371
377
383
382
381
380
377
375
372
373
373
374
373
372
372
371
370
369
371
372
373
373
374
374

Monday 5

Waxing Gibbous 64%

13:07

02:46

Sun - Rise: 05:36, Set: 19:57, Transit: 12:47. Moon - Rise: 13:07, Set: 02:46. Civil Dark: 20:29 - 05:04. Nautical Dark: 21:08 - 04:25. Astro Dark: 21:52 - 03:41

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 29/04/25 00:00:08. Forecast: 29/04/25 to 05/05/25. Timezone: UTC-4.00