Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Crescent 16%

08:36

00:08

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

Sun - Rise: 05:51, Set: 19:32, Transit: 12:42. Moon - Rise: 08:36, Set: 00:08. Civil Dark: 20:02 - 05:21. Nautical Dark: 20:38 - 04:45. Astro Dark: 21:17 - 04:06

Total Clouds (% Sky Obscured)

34
48
53
60
63
68
83
53
51
36
44
60
48
35
30
26
2
2
2
0
0
0
1
3

Low Clouds (% Sky Obscured)

34
48
27
24
0
0
0
23
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

34
35
21
17
22
25
41
16
18
23
24
25
12
0
0
0
0
0
0
0
0
0
0
2

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
1
3

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
12
3
3
3
1
5
4
4
2
1
2
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
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

48
38
33
29
27
28
28
39
44
54
57
56
54
55
60
63
67
69
68
69
68
57
45
36

Pressure (mb)

1020
1020
1020
1020
1019
1019
1019
1020
1021
1021
1023
1024
1025
1025
1026
1026
1026
1026
1027
1027
1028
1028
1029
1029

Ozone (du)

400
402
401
396
394
393
390
390
390
390
393
395
398
409
423
430
434
445
454
454
434
418
409
407

Tuesday 21

Waxing Crescent 26%

09:46

01:10

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

Sun - Rise: 05:49, Set: 19:33, Transit: 12:42. Moon - Rise: 09:46, Set: 01:10. Civil Dark: 20:03 - 05:20. Nautical Dark: 20:39 - 04:43. Astro Dark: 21:18 - 04:04

Total Clouds (% Sky Obscured)

7
6
54
52
61
37
40
27
17
22
23
19
31
46
78
92
99
98
96
96
100
99
100
100

Low Clouds (% Sky Obscured)

7
0
5
0
0
20
31
27
1
1
2
1
2
1
28
11
35
35
45
35
83
81
82
86

Medium Clouds (% Sky Obscured)

0
2
54
52
57
33
31
8
14
17
17
11
17
38
68
87
99
98
96
96
91
63
73
28

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
2
2
14
0
2
2
22
28
33
30
76
66
91
75

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
0
0
0
0
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
Light Rain
Snow
Snow
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
34
71
73
55
41
21
19

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.4
0.2
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

30
28
27
26
27
26
27
36
46
55
63
61
52
52
54
58
59
58
77
96
96
96
96
91

Pressure (mb)

1028
1028
1027
1026
1025
1024
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1022
1022
1021
1021
1021
1021
1021
1020

Ozone (du)

405
401
400
396
395
394
391
387
384
380
378
377
376
374
373
373
375
378
383
386
389
388
389
390

Wednesday 22

Waxing Crescent 37%

No Rise

01:58

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 OK
09 Bad

Sun - Rise: 05:48, Set: 19:34, Transit: 12:42. Moon - Rise: No Rise, Set: 01:58. Civil Dark: 20:04 - 05:18. Nautical Dark: 20:41 - 04:41. Astro Dark: 21:20 - 04:02

Total Clouds (% Sky Obscured)

100
99
100
100
100
100
100
100
100
61
67
89
93
96
92
88
89
100
87
80
83
81
35
43

Low Clouds (% Sky Obscured)

96
99
100
100
100
100
100
100
100
60
58
65
81
71
71
79
70
76
79
46
41
5
14
23

Medium Clouds (% Sky Obscured)

79
24
59
26
22
20
17
14
20
10
3
12
12
13
57
88
89
91
85
79
80
40
19
20

High Clouds (% Sky Obscured)

2
0
0
0
0
0
0
0
0
0
7
12
2
1
25
30
42
100
37
5
15
25
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 (%)

31
27
13
14
4
7
5
3
3
1
0
1
1
2
0
3
2
2
4
0
0
0
0
1

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

3
4
4
4
5
5
5
5
5
5
5
5
5
5
4
4
4
4
4
4
3
3
3
1

Relative Humidity (%)

88
86
81
84
84
82
82
84
85
88
96
96
96
94
93
93
93
94
94
93
94
88
68
52

Pressure (mb)

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

Ozone (du)

392
394
394
394
396
398
399
400
401
405
406
407
408
408
406
403
402
402
401
403
404
407
405
403

Thursday 23

First Quarter 48%

11:02

02:35

10 OK
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: 05:46, Set: 19:35, Transit: 12:42. Moon - Rise: 11:02, Set: 02:35. Civil Dark: 20:05 - 05:16. Nautical Dark: 20:42 - 04:40. Astro Dark: 21:22 - 04:00

Total Clouds (% Sky Obscured)

41
53
51
98
96
92
78
77
64
73
81
89
100
100
100
100
79
54
58
54
49
60
60
72

Low Clouds (% Sky Obscured)

33
32
29
47
52
51
45
54
3
1
2
0
0
0
0
0
10
22
35
35
34
32
23
15

Medium Clouds (% Sky Obscured)

22
23
24
25
20
19
21
15
8
2
11
21
25
19
18
21
13
14
9
14
15
20
15
22

High Clouds (% Sky Obscured)

0
32
51
95
66
39
9
20
30
41
42
43
44
61
78
94
71
47
26
49
49
60
60
53

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
1
1
1
1
0
0
0
0
1
0
0
0
0
0
0
2
3
3
5
5
5
8
7

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
12
13
13
14
14
14
13
11
10
8
8
6
6
5
4
4
4
4
4
5
5
7
7

Chance of Frost

Temperature (°C)

12
13
14
15
16
15
15
14
13
11
9
8
7
6
5
5
4
4
3
3
2
4
6
8

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

45
43
39
37
35
35
39
41
46
51
56
60
63
66
68
71
75
77
80
80
79
69
58
49

Pressure (mb)

1013
1013
1012
1012
1011
1011
1011
1011
1012
1012
1012
1013
1013
1013
1013
1013
1012
1012
1012
1012
1012
1012
1013
1012

Ozone (du)

403
403
406
407
406
406
406
404
405
402
400
401
401
400
400
401
403
407
411
415
414
421
432
427

Friday 24

Waxing Gibbous 60%

12:17

03:04

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

Sun - Rise: 05:45, Set: 19:36, Transit: 12:41. Moon - Rise: 12:17, Set: 03:04. Civil Dark: 20:07 - 05:15. Nautical Dark: 20:43 - 04:38. Astro Dark: 21:23 - 03:58

Total Clouds (% Sky Obscured)

82
94
99
100
100
100
100
97
95
90
69
48
40
41
44
57
66
59
48
51
54
65
76
88

Low Clouds (% Sky Obscured)

8
28
53
68
55
38
24
18
7
0
12
24
36
38
39
40
42
38
34
32
30
28
29
29

Medium Clouds (% Sky Obscured)

48
60
75
90
95
95
95
92
84
81
55
27
3
2
1
0
8
11
15
14
20
30
34
28

High Clouds (% Sky Obscured)

29
40
50
61
74
83
95
53
28
0
0
0
0
0
0
0
28
14
2
22
43
63
76
88

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

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

Chance of Frost

Temperature (°C)

9
10
11
12
12
12
11
11
10
8
6
5
4
4
3
3
3
3
2
2
3
4
6
7

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

42
37
34
31
29
30
31
35
43
56
66
67
69
71
71
73
73
76
79
81
73
66
59
52

Pressure (mb)

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

Ozone (du)

420
417
414
407
403
399
397
397
397
397
394
389
385
388
394
393
387
384
381
378
377
375
374
374

Saturday 25

Waxing Gibbous 70%

13:30

03:27

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: 05:44, Set: 19:38, Transit: 12:41. Moon - Rise: 13:30, Set: 03:27. Civil Dark: 20:08 - 05:13. Nautical Dark: 20:45 - 04:36. Astro Dark: 21:25 - 03:56

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

29
39
48
58
69
81
93
95
98
100
100
100
100
100
100
100
92
88
84
73
58
47
42
38

Medium Clouds (% Sky Obscured)

28
16
23
35
57
79
100
100
100
100
100
100
100
100
100
100
95
94
92
95
97
99
100
100

High Clouds (% Sky Obscured)

100
100
100
100
99
99
100
100
100
100
68
37
5
8
10
12
30
47
65
60
56
52
35
17

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

Precipitation Probability (%)

3
39
51
54
62
65
67
59
49
31
28
29
27
34
34
30
21
11
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

46
41
39
38
38
38
38
38
44
50
58
59
62
65
66
68
71
73
77
80
75
70
65
59

Pressure (mb)

1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1017
1017
1017

Ozone (du)

374
374
377
379
381
383
386
388
387
387
386
386
387
387
387
387
387
386
386
385
388
392
395
398

Sunday 26

Waxing Gibbous 80%

14:40

03:48

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 OK
02 OK
03 OK
04 OK
05 OK
06 Good
07 Good

Sun - Rise: 05:42, Set: 19:39, Transit: 12:41. Moon - Rise: 14:40, Set: 03:48. Civil Dark: 20:09 - 05:12. Nautical Dark: 20:46 - 04:34. Astro Dark: 21:27 - 03:54

Total Clouds (% Sky Obscured)

100
99
99
98
99
100
100
90
80
70
80
89
99
80
60
40
35
30
25
19
14
9

Low Clouds (% Sky Obscured)

35
37
43
60
55
49
40
33
27
20
46
69
94
71
53
35
30
25
19
15
11
6

Medium Clouds (% Sky Obscured)

100
78
56
35
47
58
70
66
63
59
39
20
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

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

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
0
1
2
9
10
3
9
17
0
1
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
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

12
14
13
12
10
11
12
13
11
9
7
7
7
7
6
5
4
4
4
3
5
7

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

53
48
50
52
55
52
51
49
55
62
70
69
67
67
71
75
80
83
85
88
79
71

Pressure (mb)

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

Ozone (du)

400
403
402
402
402
406
409
413
409
406
402
400
398
396
395
393
391
390
388
386
383
381

Forecast for Boxford, Essex, United States of America (42.66,-70.99)

Generated: 20/04/26 10:01:17. Forecast: 20/04/26 to 26/04/26. Timezone: UTC-4.00