Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 13

Waning Crescent 11%

04:41

15:15

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
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

Sun - Rise: 06:08, Set: 19:31, Transit: 12:50. Moon - Rise: 04:41, Set: 15:15. Civil Dark: 20:01 - 05:38. Nautical Dark: 20:36 - 05:02. Astro Dark: 21:14 - 04:24

Total Clouds (% Sky Obscured)

70
74
81
72
63
72
73
61
70
52
26
24
59
79
85
97
66
85
82
73
89
87
56
100

Low Clouds (% Sky Obscured)

67
74
63
70
48
63
66
58
61
48
26
22
26
33
41
36
48
48
35
44
43
30
26
20

Medium Clouds (% Sky Obscured)

70
74
43
0
23
22
0
0
0
0
0
0
0
0
0
0
0
40
58
59
74
76
55
32

High Clouds (% Sky Obscured)

70
0
0
0
0
0
3
3
2
9
3
2
45
70
74
95
54
66
33
37
28
4
7
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 (%)

41
43
14
15
7
2
2
5
17
3
3
0
0
0
0
0
0
0
0
0
0
1
2
5

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
13
14
13
11
11
11
11
11
11
10
9
9
6
4
2
2
2
2
3
5
6
7
9

Chance of Frost

Temperature (°C)

19
19
18
18
18
17
17
16
16
16
15
14
14
13
12
12
12
14
16
18
20
22
24
25

Feels Like (°C)

17
15
15
16
16
15
15
14
14
13
13
13
13
12
11
11
11
14
16
19
21
20
22
24

Dew Point (°C)

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

Relative Humidity (%)

77
77
83
82
82
82
79
81
82
79
82
83
83
84
89
92
92
80
69
63
58
54
49
45

Pressure (mb)

1009
1009
1009
1010
1011
1011
1012
1012
1012
1013
1013
1014
1014
1014
1015
1015
1016
1016
1016
1016
1015
1015
1013
1012

Ozone (du)

322
325
328
323
318
312
309
308
310
307
309
312
314
316
314
314
317
318
319
319
319
317
310
306

Tuesday 14

Waning Crescent 5%

05:02

16:26

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
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:06, Set: 19:32, Transit: 12:50. Moon - Rise: 05:02, Set: 16:26. Civil Dark: 20:02 - 05:36. Nautical Dark: 20:38 - 05:00. Astro Dark: 21:16 - 04:22

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
86
33
38
55
56
48
53
78
54
100
100
100
100
100
100
100
93
82

Low Clouds (% Sky Obscured)

24
62
64
30
20
32
53
16
21
55
18
24
17
13
15
12
13
21
76
55
46
44
30
61

Medium Clouds (% Sky Obscured)

50
100
100
100
99
91
46
4
16
0
11
0
8
0
0
14
93
100
91
63
67
63
75
60

High Clouds (% Sky Obscured)

94
100
100
100
100
100
84
0
2
0
31
40
3
78
54
100
100
100
100
100
100
100
60
43

ISS Passover

Visibility (miles)

9
9
3
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
26
24
23
22
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

41
85
95
95
93
77
47
12
7
2
2
0
1
0
0
0
6
32
29
11
32
48
82
38

Precipitation Amount (mm)

0
0.6
0.8
0.7
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

26
25
24
23
21
19
18
18
18
17
17
16
16
15
15
14
14
16
18
19
22
24
25
24

Feels Like (°C)

23
23
24
23
21
20
19
19
19
19
18
17
17
17
16
15
14
16
18
20
22
22
23
23

Dew Point (°C)

12
15
20
20
19
18
17
17
16
16
15
15
15
15
14
13
13
15
16
18
17
17
17
16

Relative Humidity (%)

42
51
74
83
89
91
90
89
89
90
92
95
93
95
96
96
96
95
92
91
73
64
61
58

Pressure (mb)

1010
1009
1009
1010
1010
1010
1011
1011
1011
1011
1010
1010
1010
1011
1010
1011
1011
1012
1011
1011
1010
1010
1009
1010

Ozone (du)

305
306
305
307
312
313
316
317
319
318
321
321
321
319
321
321
319
316
316
314
315
313
309
309

Wednesday 15

Waning Crescent 1%

05:23

17:40

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
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:04, Set: 19:33, Transit: 12:49. Moon - Rise: 05:23, Set: 17:40. Civil Dark: 20:03 - 05:35. Nautical Dark: 20:39 - 04:59. Astro Dark: 21:17 - 04:20

Total Clouds (% Sky Obscured)

99
100
98
96
99
100
100
100
100
100
100
100
100
100
100
100
74
98
89
100
100
100
100
100

Low Clouds (% Sky Obscured)

83
65
64
51
79
29
11
83
38
16
23
26
25
38
42
42
33
37
48
55
80
68
74
43

Medium Clouds (% Sky Obscured)

51
91
83
85
90
90
100
90
90
64
99
100
100
100
91
82
74
60
75
77
82
83
69
75

High Clouds (% Sky Obscured)

97
100
90
80
93
100
100
100
100
100
100
100
100
100
100
97
25
81
69
100
100
100
100
100

ISS Passover

Visibility (miles)

9
5
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8

Fog (%)

0
0
0
0
26
3
17
9
0
0
2
6
6
6
6
6
6
6
6
6
6
6
6
6

Precipitation Type

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

Precipitation Probability (%)

60
35
26
22
35
34
36
32
67
95
93
95
95
95
91
20
0
3
9
9
22
10
32
26

Precipitation Amount (mm)

0.3
0
0
0
0
0
0
0
0
1.1
0.5
0.9
0.7
2.6
0.9
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

24
24
23
23
22
21
19
19
18
18
17
17
16
16
16
16
16
17
19
20
22
23
24
25

Feels Like (°C)

23
23
22
22
22
21
19
20
19
19
17
18
17
16
17
16
16
18
20
21
22
23
23
24

Dew Point (°C)

18
21
20
19
19
18
17
18
17
17
16
16
16
16
16
16
16
15
15
15
15
16
15
16

Relative Humidity (%)

67
80
80
80
83
86
89
93
93
95
96
96
96
96
96
98
96
88
80
71
65
64
58
60

Pressure (mb)

1009
1010
1010
1010
1011
1011
1012
1012
1012
1012
1012
1012
1012
1011
1011
1012
1012
1012
1012
1012
1012
1011
1011
1010

Ozone (du)

307
306
307
307
306
306
306
308
308
309
310
310
310
309
311
310
310
309
309
309
309
308
308
310

Thursday 16

Waning Crescent 0%

05:47

18:57

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 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:03, Set: 19:35, Transit: 12:49. Moon - Rise: 05:47, Set: 18:57. Civil Dark: 20:04 - 05:33. Nautical Dark: 20:40 - 04:57. Astro Dark: 21:19 - 04:18

Total Clouds (% Sky Obscured)

86
100
100
100
100
87
72
61
69
73
77
85
92
100
73
47
15
26
40
51
48
48
45
56

Low Clouds (% Sky Obscured)

35
66
14
7
0
0
0
0
16
0
2
3
6
12
44
47
15
26
40
40
44
42
45
55

Medium Clouds (% Sky Obscured)

39
80
45
46
73
70
57
34
21
72
77
85
92
99
72
38
10
5
9
8
5
2
0
13

High Clouds (% Sky Obscured)

75
100
100
100
100
81
62
43
34
26
17
45
72
100
67
33
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
8
8
9
9
9
9
9
8
9
9
9
9
9
9
9
9
9
9
9
9
9
7
9

Fog (%)

6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6

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 (%)

34
45
43
44
42
38
13
25
24
2
2
1
3
7
9
10
7
21
26
24
34
44
35
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)

7
8
8
6
5
4
4
4
5
5
5
6
6
6
5
5
5
4
6
8
10
10
11
10

Chance of Frost

Temperature (°C)

25
26
26
25
23
22
21
19
18
18
17
16
16
15
15
15
16
17
19
20
22
22
22
22

Feels Like (°C)

25
26
26
25
23
22
21
19
18
17
17
14
14
14
14
14
15
17
18
19
21
21
21
21

Dew Point (°C)

18
17
20
20
20
20
18
16
15
14
14
12
12
12
12
12
13
13
15
14
15
15
15
17

Relative Humidity (%)

65
56
69
73
83
88
84
80
80
79
79
77
78
79
80
80
79
79
75
68
63
61
64
76

Pressure (mb)

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

Ozone (du)

309
310
311
311
311
310
311
311
313
314
314
315
317
317
318
323
322
320
320
322
325
328
328
329

Friday 17

New Moon 2%

06:16

20:18

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
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:01, Set: 19:36, Transit: 12:49. Moon - Rise: 06:16, Set: 20:18. Civil Dark: 20:06 - 05:31. Nautical Dark: 20:42 - 04:55. Astro Dark: 21:21 - 04:16

Total Clouds (% Sky Obscured)

68
78
75
72
69
65
52
60
64
70
78
100
100
100
100
100
100
99
98
97
97
97
97
95

Low Clouds (% Sky Obscured)

57
58
60
59
57
55
47
54
53
57
64
100
100
100
100
100
100
96
92
88
88
88
88
76

Medium Clouds (% Sky Obscured)

25
37
29
18
13
8
4
0
4
7
10
82
79
59
44
47
66
75
84
95
67
39
11
7

High Clouds (% Sky Obscured)

5
3
0
0
0
0
1
3
22
2
51
58
60
63
64
64
90
99
98
97
51
20
3
3

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
8
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6

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 (%)

20
6
11
6
6
7
6
7
26
30
26
28
22
15
15
13
11
13
12
12
13
8
8
6

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

Chance of Frost

Temperature (°C)

21
20
19
19
18
17
16
14
14
14
13
12
13
12
12
12
12
12
13
13
14
15
17
18

Feels Like (°C)

19
19
18
18
17
16
15
15
14
13
12
12
12
12
12
12
12
11
11
11
11
12
13
15

Dew Point (°C)

17
16
14
14
14
13
12
11
11
12
12
11
11
11
11
10
11
10
10
9
9
10
11
12

Relative Humidity (%)

80
77
72
75
78
78
78
82
80
87
92
93
92
90
90
89
89
87
81
76
71
70
68
67

Pressure (mb)

1009
1009
1010
1011
1012
1013
1013
1014
1014
1015
1015
1015
1017
1017
1017
1017
1017
1018
1017
1017
1017
1016
1016
1015

Ozone (du)

333
334
332
326
322
324
326
325
326
326
325
326
327
328
330
330
330
331
331
331
331
329
327
325

Saturday 18

Waxing Crescent 8%

06:53

21:41

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
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:00, Set: 19:37, Transit: 12:49. Moon - Rise: 06:53, Set: 21:41. Civil Dark: 20:07 - 05:30. Nautical Dark: 20:43 - 04:53. Astro Dark: 21:22 - 04:14

Total Clouds (% Sky Obscured)

94
93
92
92
92
95
97
99
99
99
100
100
100
100
100
100
100
100
99
98
95
95
94
95

Low Clouds (% Sky Obscured)

64
53
47
42
43
54
64
77
86
93
98
99
100
100
100
100
100
97
93
90
67
49
31
26

Medium Clouds (% Sky Obscured)

4
0
1
2
2
5
7
9
29
50
70
79
88
97
97
97
97
97
98
98
88
77
67
46

High Clouds (% Sky Obscured)

4
5
19
41
59
40
55
53
67
76
96
99
100
100
100
100
100
75
43
5
5
15
20
20

ISS Passover

Visibility (miles)

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

Fog (%)

6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6

Precipitation Type

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

Precipitation Probability (%)

1
0
0
0
0
1
2
0
33
46
55
83
95
95
95
95
89
80
62
27
30
28
16
11

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.4
0.7
0.9
1
0.8
0.3
0.3
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
18
19
17
15
14
13
13
12
11
11
11
10
10
10
10
10
11
12
12
11
12
14
15

Feels Like (°C)

16
15
15
15
14
14
11
11
11
10
10
10
8
8
8
8
8
8
10
9
9
9
10
11

Dew Point (°C)

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

Relative Humidity (%)

65
64
62
67
72
75
79
81
84
87
90
91
95
95
98
98
96
96
88
81
73
63
53
45

Pressure (mb)

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

Ozone (du)

323
320
318
315
313
310
310
310
310
309
308
307
307
307
307
308
309
310
311
312
313
315
318
320

Sunday 19

Waxing Crescent 7%

07:40

23:03

15 Bad
16 Bad
17 Bad
18 Bad
19 OK
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 OK
05 Bad
06 Bad
07 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)

96
96
76
55
32
52
72
90
78
69
59
49
39
28
31
34
38

Low Clouds (% Sky Obscured)

21
16
20
24
28
46
64
87
76
64
53
43
33
24
28
33
38

Medium Clouds (% Sky Obscured)

26
3
0
0
0
6
12
18
27
36
46
30
15
0
0
0
0

High Clouds (% Sky Obscured)

25
25
17
5
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6

Precipitation Type

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

Precipitation Probability (%)

6
0
0
0
0
13
26
45
53
47
27
22
20
16
22
20
13

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
16
16
14
12
10
9
8
7
5
3
1
1
-0
-1
-1
-1

Feels Like (°C)

13
12
11
12
12
12
7
7
7
6
6
6
-3
-4
-4
-5
-6

Dew Point (°C)

3
3
3
4
4
5
5
5
5
2
-0
-3
-3
-5
-6
-7
-7

Relative Humidity (%)

43
42
40
49
59
71
76
82
88
85
80
77
74
70
67
65
60

Pressure (mb)

1008
1007
1006
1007
1007
1007
1008
1009
1010
1010
1011
1011
1012
1013
1013
1014
1015

Ozone (du)

323
326
329
333
337
340
349
358
367
370
373
376
376
376
377
374
371

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

Generated: 13/04/26 15:10:10. Forecast: 13/04/26 to 19/04/26. Timezone: UTC-4.00