Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 27

Waxing Gibbous 88%

16:03

04:22

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

Sun - Rise: 06:01, Set: 19:49, Transit: 12:56. Moon - Rise: 16:03, Set: 04:22. Civil Dark: 20:18 - 05:32. Nautical Dark: 20:53 - 04:57. Astro Dark: 21:30 - 04:20

Total Clouds (% Sky Obscured)

16
12
11
16
2
0
3
26
37
45
74
59
70
9
18
18
46
6
7
27
8
46
100
95

Low Clouds (% Sky Obscured)

7
11
11
4
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
19
3
3

High Clouds (% Sky Obscured)

0
0
0
0
0
0
2
25
37
45
72
59
70
8
17
15
42
6
6
24
5
40
100
95

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

Chance of Frost

Temperature (°C)

14
16
17
18
20
20
20
18
17
15
12
10
9
9
8
8
7
7
7
6
6
7
10
13

Feels Like (°C)

13
15
16
17
18
18
17
15
13
11
9
7
6
6
8
7
6
5
7
7
5
7
9
11

Dew Point (°C)

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

Relative Humidity (%)

49
42
37
33
31
31
32
34
38
46
54
59
61
63
68
68
70
69
69
71
72
67
56
50

Pressure (mb)

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

Ozone (du)

375
374
371
368
367
366
362
361
359
357
355
354
353
352
353
352
351
349
348
345
344
346
346
340

Tuesday 28

Waxing Gibbous 94%

17:06

04:44

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

Sun - Rise: 06:00, Set: 19:50, Transit: 12:55. Moon - Rise: 17:06, Set: 04:44. Civil Dark: 20:19 - 05:31. Nautical Dark: 20:54 - 04:56. Astro Dark: 21:31 - 04:18

Total Clouds (% Sky Obscured)

97
100
100
100
100
100
100
100
100
100
98
97
99
100
100
100
100
100
100
99
97
96
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
10
30
29
45
77
81
89
99
100
100
100
98
72
41
45
53

Medium Clouds (% Sky Obscured)

8
13
100
100
100
89
92
98
99
80
53
74
66
40
40
30
32
26
20
20
13
6
4
13

High Clouds (% Sky Obscured)

95
100
100
99
100
100
100
100
100
55
50
57
2
0
0
4
2
51
50
55
89
89
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
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
2
11
35
52
95
35
1
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
1.3
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
17
18
18
18
18
18
16
15
13
12
11
10
10
10
10
10
10
10
10
10
10
11
13

Feels Like (°C)

13
15
16
15
15
14
14
13
12
10
9
9
8
8
8
8
8
8
8
8
8
8
9
10

Dew Point (°C)

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

Relative Humidity (%)

42
39
37
35
36
38
39
45
50
52
55
56
59
56
56
56
57
58
58
59
61
62
59
57

Pressure (mb)

1024
1024
1023
1022
1021
1021
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1018
1018
1018
1018
1017
1017
1017

Ozone (du)

341
340
340
340
339
335
333
333
334
335
340
347
354
356
349
347
340
338
338
342
340
341
340
340

Wednesday 29

Waxing Gibbous 98%

18:09

05:06

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

Sun - Rise: 05:59, Set: 19:51, Transit: 12:55. Moon - Rise: 18:09, Set: 05:06. Civil Dark: 20:20 - 05:30. Nautical Dark: 20:55 - 04:54. Astro Dark: 21:33 - 04:16

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
99
100
100
100
100
100
100
100
99
91
100
95
88

Low Clouds (% Sky Obscured)

60
71
37
27
55
37
24
42
85
90
66
79
91
96
93
99
100
100
100
99
91
100
93
86

Medium Clouds (% Sky Obscured)

48
88
92
99
82
92
81
82
99
99
100
98
100
92
58
55
50
52
64
86
31
37
41
38

High Clouds (% Sky Obscured)

100
100
100
99
100
71
74
100
95
82
100
5
64
64
0
0
1
1
20
12
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
6
2
2
2
9
8
8
1
7
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
Light Rain
Light Rain
Moderate Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
3
11
41
64
95
95
95
95
95
95
82
53
21
11
4
2
2
2

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
2.2
1.5
3.8
1.5
2.5
1.6
0.5
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
7
9
10
11
11
12
12
11
10
9
9
10
8
6
5
3
3
4
7
7
8
9
10

Chance of Frost

Temperature (°C)

14
15
16
17
16
16
17
15
14
11
11
10
10
10
10
11
11
11
12
11
9
10
11
12

Feels Like (°C)

12
12
13
14
13
13
12
11
10
8
8
7
7
8
8
10
11
11
11
9
6
9
8
9

Dew Point (°C)

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

Relative Humidity (%)

52
52
51
47
48
47
45
49
54
73
81
91
95
95
96
96
98
98
96
93
93
93
87
77

Pressure (mb)

1016
1016
1015
1014
1013
1013
1012
1011
1011
1010
1010
1010
1009
1008
1008
1008
1007
1006
1006
1007
1007
1007
1008
1008

Ozone (du)

339
338
338
337
336
338
341
343
349
351
353
361
360
372
379
385
386
380
372
371
373
375
377
377

Thursday 30

Waxing Gibbous 100%

19:12

05:31

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

Sun - Rise: 05:58, Set: 19:52, Transit: 12:55. Moon - Rise: 19:12, Set: 05:31. Civil Dark: 20:21 - 05:28. Nautical Dark: 20:56 - 04:53. Astro Dark: 21:34 - 04:14

Total Clouds (% Sky Obscured)

87
77
62
47
55
68
75
72
69
28
28
27
31
23
13
0
0
0
0
0
0
0
2
5

Low Clouds (% Sky Obscured)

79
70
59
47
49
57
55
47
39
28
21
11
0
0
0
0
0
0
0
0
0
0
2
4

Medium Clouds (% Sky Obscured)

26
17
9
0
6
10
15
13
13
11
14
18
18
14
7
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
0
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 (%)

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

Chance of Frost

Temperature (°C)

13
14
15
16
17
18
16
16
15
14
12
11
10
9
9
8
7
7
6
6
6
7
9
11

Feels Like (°C)

11
11
11
13
15
14
11
11
11
10
10
10
9
8
8
7
6
6
5
6
6
7
9
10

Dew Point (°C)

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

Relative Humidity (%)

65
57
51
41
37
37
47
43
47
48
51
56
58
61
63
65
66
66
67
70
72
69
52
41

Pressure (mb)

1008
1008
1008
1007
1007
1007
1008
1008
1009
1010
1010
1011
1012
1012
1013
1013
1013
1013
1014
1014
1015
1015
1016
1016

Ozone (du)

376
376
380
382
381
381
381
383
384
388
390
391
393
391
389
390
390
390
391
392
391
392
392
390

Friday 1

Full Moon 100%

20:16

06:00

10 Good
11 Good
12 Good
13 OK
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

Sun - Rise: 05:56, Set: 19:53, Transit: 12:55. Moon - Rise: 20:16, Set: 06:00. Civil Dark: 20:22 - 05:27. Nautical Dark: 20:57 - 04:51. Astro Dark: 21:36 - 04:13

Total Clouds (% Sky Obscured)

6
11
16
26
58
75
97
90
76
87
93
97
100
100
95
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

6
11
16
23
24
29
32
23
12
0
0
0
0
17
34
51
34
42
51
59
66
74
76
80

Medium Clouds (% Sky Obscured)

0
0
0
0
32
20
27
29
46
76
82
92
99
99
70
74
37
66
96
97
99
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
10
20
13
13
24
1
2
20
86
86
12
75
100
100
100
100
100
100
100
95

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
1
23
35
61
67
72
79
74
57
50
41
41
41
40
89
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.4
0.4
0.5
0.4
0.3
0
0
0
0
0
0
0.5
0.9

Wind Speed/Direction (mph)

7
8
10
11
12
12
11
10
8
7
6
5
3
2
2
2
3
2
2
4
4
4
4
5

Chance of Frost

Temperature (°C)

13
14
15
16
17
17
17
16
16
15
13
11
11
10
10
10
10
10
10
10
10
10
10
10

Feels Like (°C)

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

Dew Point (°C)

-2
-2
-0
1
1
1
2
4
4
4
8
9
9
9
9
10
10
9
9
9
9
9
9
9

Relative Humidity (%)

35
34
34
34
33
33
35
44
46
49
71
86
91
93
93
96
96
96
95
96
96
95
93
95

Pressure (mb)

1016
1015
1015
1014
1014
1014
1013
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

392
391
386
378
376
374
369
363
360
358
354
351
351
353
355
351
348
347
345
344
344
345
346
345

Saturday 2

Waning Gibbous 98%

21:19

06:34

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

Sun - Rise: 05:55, Set: 19:54, Transit: 12:55. Moon - Rise: 21:19, Set: 06:34. Civil Dark: 20:23 - 05:26. Nautical Dark: 20:59 - 04:50. Astro Dark: 21:37 - 04:11

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
96
96
95
84
75
63
44
23

Low Clouds (% Sky Obscured)

84
87
90
93
94
95
96
97
99
100
100
100
100
100
100
100
95
89
85
80
71
61
42
23

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
97
76
63
45
24
5
7
5
3
3
3

High Clouds (% Sky Obscured)

70
25
0
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)

3
2
2
2
2
2
1
1
2
2
3
4
5
6
7
8
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
95
95
95
90
79
65
57
44
25
20
16
9
8
6

Precipitation Amount (mm)

1.3
1.3
1.7
2
1.8
2
2.2
1.8
1.3
1
0.9
0.8
0.6
0.5
0.4
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

10
10
10
10
10
10
10
10
10
9
9
9
9
9
9
9
8
8
8
8
8
8
8
9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
96
96
96
96
98
96
98
96
98
96
96
96
96
95
93
91
90
87
85
77
69
62
54

Pressure (mb)

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

Ozone (du)

345
344
343
341
339
341
342
344
345
346
347
347
348
349
353
357
361
368
375
382
380
378
376
377

Sunday 3

Waning Gibbous 94%

22:19

07:15

10 Good
11 Good
12 OK
13 OK
14 Bad
15 Bad
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 Good
07 Good

Sun - Rise: 05:54, Set: 19:55, Transit: 12:55. Moon - Rise: 22:19, Set: 07:15. Civil Dark: 20:24 - 05:25. Nautical Dark: 21:00 - 04:49. Astro Dark: 21:39 - 04:09

Total Clouds (% Sky Obscured)

5
8
16
24
44
66
86
68
52
35
25
14
3
2
2
2
2
2
2
2
3
3

Low Clouds (% Sky Obscured)

0
8
16
23
43
63
79
61
41
24
16
9
1
1
1
1
1
1
1
1
1
2

Medium Clouds (% Sky Obscured)

2
0
0
0
0
4
9
11
9
7
6
5
1
1
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
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

Fog (%)

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

Precipitation Probability (%)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

10
12
13
14
14
15
15
15
14
13
12
11
10
9
8
8
7
7
6
6
8
9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

46
40
37
34
33
32
32
32
35
40
44
48
52
58
60
64
67
69
67
67
66
64

Pressure (mb)

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

Ozone (du)

377
378
379
381
383
385
388
390
388
386
383
382
381
380
381
382
383
384
386
387
387
387

Forecast for Batsto, Burlington, United States of America (39.64,-74.65)

Generated: 27/04/26 10:47:02. Forecast: 27/04/26 to 03/05/26. Timezone: UTC-4.00