Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 21

Waxing Crescent 24%

08:56

02:14

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

Sun - Rise: 05:49, Set: 20:11, Transit: 13:01. Moon - Rise: 08:56, Set: 02:14. Civil Dark: 20:48 - 05:12. Nautical Dark: 21:35 - 04:25. Astro Dark: 22:29 - 03:30

Total Clouds (% Sky Obscured)

29
38
46
61
10
13
10
14
4
8
6
7
24
34
39
50
61
64
60
7
5
18
36
24

Low Clouds (% Sky Obscured)

29
38
35
0
0
8
0
0
0
8
6
7
24
34
39
50
61
64
60
7
5
18
36
24

Medium Clouds (% Sky Obscured)

29
38
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)

0
2
46
41
10
13
10
14
4
3
2
0
0
0
0
0
0
0
0
0
0
0
1
1

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
2
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)

14
14
15
15
17
16
15
13
11
10
10
10
10
10
10
10
11
10
10
11
12
16
17
17

Chance of Frost

Temperature (°C)

12
13
14
13
13
12
11
9
7
6
5
4
4
4
3
3
3
3
4
6
8
11
13
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

65
63
53
55
58
57
62
65
73
81
88
93
94
94
94
96
96
96
94
85
75
68
63
57

Pressure (mb)

1026
1026
1026
1025
1025
1025
1025
1026
1027
1027
1027
1027
1027
1027
1027
1026
1026
1027
1027
1028
1028
1028
1027
1027

Ozone (du)

413
414
413
411
408
404
399
395
395
396
395
394
393
392
391
389
388
386
383
380
375
372
372
374

Wednesday 22

Waxing Crescent 35%

10:19

02:57

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

Sun - Rise: 05:47, Set: 20:13, Transit: 13:01. Moon - Rise: 10:19, Set: 02:57. Civil Dark: 20:50 - 05:10. Nautical Dark: 21:37 - 04:22. Astro Dark: 22:33 - 03:26

Total Clouds (% Sky Obscured)

10
1
1
1
0
5
5
5
5
5
5
5
19
59
80
92
87
91
83
72
37
6
0
0

Low Clouds (% Sky Obscured)

10
0
0
0
0
0
0
0
0
0
0
0
6
53
74
90
87
91
83
72
37
6
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
0
0
0

High Clouds (% Sky Obscured)

1
1
1
1
0
5
5
5
5
5
5
5
19
52
45
24
2
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 (%)

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)

17
16
16
15
14
13
13
11
10
10
10
8
8
8
8
8
8
9
9
10
11
11
12
12

Chance of Frost

Temperature (°C)

15
15
16
16
15
15
14
12
10
8
7
6
5
4
4
4
4
4
4
5
7
9
11
13

Feels Like (°C)

10
11
12
12
12
11
9
7
5
4
2
2
1
1
0
0
1
2
2
2
4
6
8
10

Dew Point (°C)

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

Relative Humidity (%)

54
53
53
56
60
64
69
72
74
78
81
85
88
91
93
93
96
94
91
82
71
63
58
55

Pressure (mb)

1027
1027
1027
1027
1027
1027
1027
1028
1029
1030
1030
1030
1030
1031
1031
1031
1031
1031
1031
1032
1032
1032
1031
1031

Ozone (du)

374
376
375
374
374
374
373
374
376
378
378
379
379
376
375
376
381
386
390
388
388
387
384
380

Thursday 23

Waxing Crescent 46%

11:46

03:25

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

Sun - Rise: 05:45, Set: 20:14, Transit: 13:01. Moon - Rise: 11:46, Set: 03:25. Civil Dark: 20:52 - 05:08. Nautical Dark: 21:39 - 04:20. Astro Dark: 22:36 - 03:23

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
1
1
1
1
1
12
35
42
47
50
45
46
31
13
0
0
0
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
12
35
42
47
50
45
46
31
13
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
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
1
1
1
1
1
1
1
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 (%)

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)

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

Chance of Frost

Temperature (°C)

15
17
17
17
17
16
15
12
10
8
6
5
4
3
3
2
2
2
2
5
7
9
11
13

Feels Like (°C)

12
14
15
15
15
14
12
10
8
6
4
3
2
1
1
1
-0
-0
1
3
5
7
9
11

Dew Point (°C)

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

Relative Humidity (%)

53
52
52
55
62
66
71
77
84
87
90
91
91
93
93
93
93
93
88
76
67
60
54
54

Pressure (mb)

1031
1030
1029
1029
1029
1028
1028
1029
1029
1029
1029
1029
1029
1029
1029
1028
1028
1028
1028
1028
1028
1028
1027
1027

Ozone (du)

378
376
376
375
373
372
370
369
370
370
371
371
370
370
370
373
374
375
375
376
377
377
372
369

Friday 24

First Quarter 58%

No Rise

03:45

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

Sun - Rise: 05:43, Set: 20:16, Transit: 13:01. Moon - Rise: No Rise, Set: 03:45. Civil Dark: 20:54 - 05:06. Nautical Dark: 21:41 - 04:17. Astro Dark: 22:39 - 03:19

Total Clouds (% Sky Obscured)

0
0
0
1
3
3
3
4
9
12
31
37
9
9
10
28
49
59
67
83
96
86
81
84

Low 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

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
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
1
1
1
1
1
3
13
28
8
8
8
28
49
59
66
83
96
86
81
84

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

52
51
50
51
56
63
70
78
81
81
84
85
85
88
86
86
85
82
76
65
59
55
50
50

Pressure (mb)

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

Ozone (du)

368
368
367
367
365
366
367
368
367
366
365
365
365
363
360
358
356
356
356
356
356
356
355
354

Saturday 25

Waxing Gibbous 68%

13:11

04:00

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
10 OK
11 OK
12 Bad

Sun - Rise: 05:41, Set: 20:18, Transit: 13:00. Moon - Rise: 13:11, Set: 04:00. Civil Dark: 20:55 - 05:03. Nautical Dark: 21:44 - 04:15. Astro Dark: 22:42 - 03:16

Total Clouds (% Sky Obscured)

83
75
68
80
86
96
96
96
97
98
99
100
96
92
86
84
88
92
71
49
27
35
45
52

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
18
43
69
80
82
91
98
99
100
96
92
86
84
83
80
70
49
27
35
45
52

High Clouds (% Sky Obscured)

83
75
67
72
68
73
75
78
81
88
94
100
80
60
44
45
45
44
24
10
0
10
18
27

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)

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

Chance of Frost

Temperature (°C)

16
17
18
18
18
17
16
14
12
11
9
8
7
7
6
5
5
6
6
8
10
12
13
15

Feels Like (°C)

13
14
15
15
15
14
12
10
9
7
6
5
4
4
3
3
2
3
3
4
5
6
7
8

Dew Point (°C)

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

Relative Humidity (%)

51
54
54
55
59
67
72
76
86
91
91
93
93
93
93
94
91
91
90
82
74
67
64
61

Pressure (mb)

1023
1023
1023
1023
1023
1023
1023
1024
1024
1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1027
1027
1027
1027
1027

Ozone (du)

353
353
353
353
354
356
357
357
358
360
361
362
363
366
368
371
373
375
377
381
385
389
390
392

Sunday 26

Waxing Gibbous 78%

14:32

04:11

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

Sun - Rise: 05:39, Set: 20:19, Transit: 13:00. Moon - Rise: 14:32, Set: 04:11. Civil Dark: 20:57 - 05:01. Nautical Dark: 21:46 - 04:12. Astro Dark: 22:45 - 03:12

Total Clouds (% Sky Obscured)

57
62
69
77
89
95
88
81
74
63
50
38
47
53
59
58
56
63
68
75
77
78
79
78

Low Clouds (% Sky Obscured)

0
0
0
9
17
25
31
33
37
38
39
38
45
48
51
50
49
48
52
58
62
59
56
53

Medium Clouds (% Sky Obscured)

57
62
69
77
82
87
80
68
55
43
32
24
28
42
52
47
42
38
32
25
20
21
20
21

High Clouds (% Sky Obscured)

35
34
35
42
53
71
50
32
13
9
4
0
0
0
0
0
0
0
0
0
0
1
2
4

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
1
1
0
3
3
1
5
6
1
3
2
0
17
22
22

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
13
13
13
13
14
14
10
9
9
8
7
5
4
4
5
6
6
5
7
7
7
7
7

Dew Point (°C)

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

Relative Humidity (%)

59
59
59
60
64
68
73
78
81
88
90
93
96
96
96
96
96
95
93
87
80
75
70
65

Pressure (mb)

1026
1026
1026
1025
1026
1026
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027

Ozone (du)

393
395
396
398
400
401
403
403
403
402
398
395
391
389
387
385
386
386
387
387
387
387
388
389

Monday 27

Waxing Gibbous 86%

15:50

04:22

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

Sun - Rise: 05:37, Set: 20:21, Transit: 13:00. Moon - Rise: 15:50, Set: 04:22. Civil Dark: 20:59 - 04:59. Nautical Dark: 21:48 - 04:09. Astro Dark: 22:48 - 03:08

Total Clouds (% Sky Obscured)

82
85
88
79
69
61
64
66
68
62
49
44
43
25
22
23
29
53

Low Clouds (% Sky Obscured)

58
62
67
56
45
34
48
62
68
62
49
44
43
25
22
23
29
53

Medium Clouds (% Sky Obscured)

22
23
31
22
14
10
7
3
1
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

3
2
1
1
1
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

Fog (%)

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

Precipitation Probability (%)

28
35
40
34
29
26
27
22
3
4
4
2
2
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
15
15
14
13
13
12
11
9
7
6
5
5
5
4
4
5
5

Feels Like (°C)

6
12
11
10
10
9
10
7
6
6
6
5
5
1
2
2
2
2

Dew Point (°C)

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

Relative Humidity (%)

60
62
63
66
66
67
70
71
70
71
78
83
91
93
94
96
94
93

Pressure (mb)

1026
1026
1026
1026
1026
1026
1026
1026
1026
1027
1027
1027
1027
1027
1027
1026
1026
1026

Ozone (du)

390
391
391
391
392
393
393
394
395
395
395
395
396
396
396
396
397
397

Forecast for Loughton, Milton Keynes, United Kingdom (52.03,-0.77)

Generated: 21/04/26 13:15:02. Forecast: 21/04/26 to 27/04/26. Timezone: UTC+1.00