Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 9

Waning Gibbous 50%

03:50

11:09

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

Sun - Rise: 06:20, Set: 19:53, Transit: 13:08. Moon - Rise: 03:50, Set: 11:09. Civil Dark: 20:28 - 05:45. Nautical Dark: 21:10 - 05:03. Astro Dark: 21:57 - 04:16

Total Clouds (% Sky Obscured)

89
91
66
69
42
60
100
32
98
100
100
100
100
100
100
98
59
77
100
89
99
100
100
100

Low Clouds (% Sky Obscured)

36
40
58
30
27
41
29
4
5
26
16
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

63
35
0
0
7
3
0
0
0
14
45
78
100
100
100
98
59
77
88
73
74
100
100
100

High Clouds (% Sky Obscured)

89
79
66
69
42
60
36
32
98
100
100
100
100
100
100
91
59
65
82
35
90
99
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
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

7
23
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3

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
18
20
18
15
11
8
9
9
10
9
8
7
6
4
4
3
3
2
8
9
11
12
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
73
81
76
67
67
74
78
73
71
71
73
77
75
75
75
73
68
64
59
59
58
57
59

Pressure (mb)

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

Ozone (du)

374
381
381
380
381
381
383
376
371
367
364
362
361
359
359
357
355
354
353
354
352
351
350
349

Friday 10

Third Quarter 39%

04:16

12:25

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
15 Bad

Sun - Rise: 06:18, Set: 19:55, Transit: 13:07. Moon - Rise: 04:16, Set: 12:25. Civil Dark: 20:30 - 05:43. Nautical Dark: 21:12 - 05:00. Astro Dark: 22:00 - 04:13

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
46
47
31
33
65
87
58

Low Clouds (% Sky Obscured)

12
57
58
22
0
0
0
0
0
0
32
66
47
100
88
78
47
46
47
31
33
29
0
37

Medium Clouds (% Sky Obscured)

100
100
100
100
100
65
51
30
49
40
40
49
50
60
44
53
40
5
0
0
33
65
84
27

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
15
5
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
0
9
9
9
9
8
6

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

Precipitation Probability (%)

29
24
45
30
3
0
0
0
0
0
0
1
10
58
77
59
64
45
21
33
39
30
45
50

Precipitation Amount (mm)

0
0
0.2
0
0
0
0
0
0
0
0
0
0
0.2
0.5
0.2
0.3
0
0
0
0
0
0.2
0.2

Wind Speed/Direction (mph)

14
13
11
12
12
13
15
17
18
18
18
17
16
15
15
13
12
15
15
18
20
22
22
21

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
74
81
79
79
78
74
74
79
81
79
79
84
87
87
90
95
98
93
78
69
62
58
64

Pressure (mb)

1017
1016
1015
1014
1013
1012
1011
1009
1008
1006
1005
1004
1003
1002
1001
1001
1002
1004
1004
1005
1005
1005
1005
1005

Ozone (du)

347
346
347
346
348
350
350
351
350
348
349
350
350
351
352
353
357
361
367
375
382
388
399
406

Saturday 11

Waning Crescent 30%

04:35

13:43

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

Sun - Rise: 06:16, Set: 19:57, Transit: 13:07. Moon - Rise: 04:35, Set: 13:43. Civil Dark: 20:32 - 05:41. Nautical Dark: 21:14 - 04:58. Astro Dark: 22:02 - 04:10

Total Clouds (% Sky Obscured)

56
81
100
63
94
45
48
32
44
43
42
47
48
38
34
30
34
49
63
70
57
62
58
55

Low Clouds (% Sky Obscured)

37
50
52
52
50
45
27
32
40
43
42
47
45
35
33
27
34
48
54
41
38
42
41
42

Medium Clouds (% Sky Obscured)

18
26
38
15
25
12
7
0
5
0
1
0
0
1
7
5
0
0
0
19
15
16
14
12

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 (%)

45
34
34
25
7
8
5
6
7
1
1
1
2
1
0
0
2
9
29
36
29
19
25
32

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
72
73
74
76
74
76
78
78
78
83
86
85
86
88
88
83
77
71
67
60
57
54
51

Pressure (mb)

1005
1005
1005
1006
1006
1006
1006
1006
1006
1007
1007
1007
1007
1007
1007
1008
1009
1009
1009
1009
1010
1010
1010
1010

Ozone (du)

411
413
414
420
426
425
422
416
419
422
421
418
415
416
418
420
420
421
423
426
432
440
448
451

Sunday 12

Waning Crescent 20%

04:50

15:02

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
15 Bad

Sun - Rise: 06:14, Set: 19:58, Transit: 13:07. Moon - Rise: 04:50, Set: 15:02. Civil Dark: 20:33 - 05:39. Nautical Dark: 21:17 - 04:55. Astro Dark: 22:05 - 04:07

Total Clouds (% Sky Obscured)

57
57
69
67
71
94
100
98
98
85
74
65
78
89
98
94
89
83
87
93
100
100
100
100

Low Clouds (% Sky Obscured)

43
47
50
57
61
62
57
49
41
39
39
43
53
65
74
73
74
72
64
58
48
50
62
70

Medium Clouds (% Sky Obscured)

16
25
38
50
50
84
99
95
96
85
74
63
63
77
64
79
70
56
69
84
100
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
5
3
15
15
15
1
3
6
3
2
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
6
9
9
2
4
9
9
9
9
7
6
9
5
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
Very Light Rain
None
Light Rain
Light Rain
None
None
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

29
30
31
25
15
1
4
3
6
33
45
31
56
70
42
30
35
31
42
53
55
65
83
92

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

16
14
11
9
8
7
6
6
6
6
7
5
5
5
4
4
5
5
5
5
5
6
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

51
57
64
73
79
86
86
85
89
89
93
94
94
94
96
93
93
93
94
93
95
91
82
81

Pressure (mb)

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

Ozone (du)

453
456
460
463
466
470
470
471
470
474
478
480
481
482
483
479
470
468
467
467
469
469
472
475

Monday 13

Waning Crescent 12%

05:03

No Set

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

Sun - Rise: 06:12, Set: 20:00, Transit: 13:07. Moon - Rise: 05:03, Set: No Set. Civil Dark: 20:35 - 05:36. Nautical Dark: 21:19 - 04:53. Astro Dark: 22:07 - 04:03

Total Clouds (% Sky Obscured)

92
84
77
56
36
15
3
4
4
16
29
44
51
56
63
50
35
24
14
21
32
38
45
51

Low Clouds (% Sky Obscured)

67
63
64
46
32
7
2
0
4
15
29
44
51
56
62
17
9
0
11
21
32
35
39
44

Medium Clouds (% Sky Obscured)

91
73
59
42
36
15
3
3
2
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
2
3
4
7
11
15

ISS Passover

Visibility (miles)

5
5
9
6
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

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

Precipitation Probability (%)

81
71
62
49
34
9
2
0
0
0
0
0
0
0
0
0
0
0
11
13
14
16
18
16

Precipitation Amount (mm)

0.5
0.4
0.3
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
5
4
3
4
4
5
4
3
4
4
4
4
4
4
4
5
6
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
6
6
4
4
3
2
2
1
1
1
1
0
0
0
2
3
4
4
6
6
12
12

Dew Point (°C)

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

Relative Humidity (%)

80
80
87
91
91
94
96
98
94
94
96
96
98
98
98
100
93
88
84
78
75
69
69
70

Pressure (mb)

1010
1010
1010
1010
1011
1012
1012
1013
1013
1014
1014
1015
1015
1016
1016
1017
1017
1018
1018
1018
1019
1019
1019
1019

Ozone (du)

477
477
473
468
464
459
453
449
447
439
424
412
404
403
399
392
387
383
378
374
370
366
362
359

Tuesday 14

Waning Crescent 6%

05:16

16:23

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
15 Bad

Sun - Rise: 06:09, Set: 20:02, Transit: 13:06. Moon - Rise: 05:16, Set: 16:23. Civil Dark: 20:37 - 05:34. Nautical Dark: 21:21 - 04:50. Astro Dark: 22:10 - 04:00

Total Clouds (% Sky Obscured)

64
77
90
86
82
78
83
89
95
90
87
83
84
82
80
77
77
84
92
98
100
100
100
100

Low Clouds (% Sky Obscured)

31
14
4
3
3
0
2
3
5
17
28
39
29
22
17
29
40
49
61
80
100
91
83
74

Medium Clouds (% Sky Obscured)

11
23
30
41
53
70
70
70
70
54
38
32
19
16
11
10
8
9
9
9
9
24
34
44

High Clouds (% Sky Obscured)

30
33
41
41
30
9
10
6
2
2
3
4
36
68
80
73
69
68
49
34
14
38
63
90

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
Very Light Rain

Precipitation Probability (%)

14
13
4
3
1
0
0
0
0
0
0
0
0
0
0
0
0
1
12
20
26
41
51
56

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
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
12
12
11
9
8
8
7
6
6
2
1
1
2
2
1
3
3
4
4
3
4
8
8

Dew Point (°C)

8
8
8
8
7
6
5
4
3
3
2
2
1
2
2
3
4
6
7
9
9
11
11
11

Relative Humidity (%)

69
71
75
79
81
85
88
87
85
85
80
75
71
75
76
79
81
84
87
88
87
89
90
92

Pressure (mb)

1019
1020
1020
1020
1021
1021
1022
1022
1022
1022
1022
1022
1021
1021
1021
1020
1020
1020
1020
1020
1019
1019
1019
1019

Ozone (du)

356
353
350
348
347
346
345
343
342
340
339
339
338
340
342
343
343
342
342
342
342
343
343
344

Wednesday 15

Waning Crescent 2%

05:28

17:45

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

Sun - Rise: 06:07, Set: 20:03, Transit: 13:06. Moon - Rise: 05:28, Set: 17:45. Civil Dark: 20:39 - 05:32. Nautical Dark: 21:23 - 04:47. Astro Dark: 22:12 - 03:57

Total Clouds (% Sky Obscured)

98
97
97
95
94
92
80
66
54
43
37
30
52
74
97
97
97
96
97
99
100

Low Clouds (% Sky Obscured)

74
74
74
79
83
86
77
66
54
43
37
30
43
34
25
22
22
28
27
26
23

Medium Clouds (% Sky Obscured)

35
26
13
12
12
15
17
12
7
6
5
3
2
1
0
1
2
3
32
59
88

High Clouds (% Sky Obscured)

63
36
23
26
30
29
23
17
11
20
27
30
52
74
97
68
40
15
47
75
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

Fog (%)

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

Precipitation Probability (%)

50
41
37
38
43
51
44
35
16
12
6
0
0
0
0
0
0
0
1
5
2

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
93
93
93
95
96
96
96
96
96
96
94
94
96
96
98
93
90
86
80
76

Pressure (mb)

1019
1019
1019
1019
1020
1020
1020
1020
1020
1021
1020
1020
1020
1020
1020
1020
1021
1021
1021
1020
1020

Ozone (du)

344
345
345
345
345
345
345
346
347
348
351
353
355
355
355
354
355
357
358
359
359

Forecast for Marlborough, Wiltshire, United Kingdom (51.42,-1.73)

Generated: 09/04/26 16:31:30. Forecast: 09/04/26 to 15/04/26. Timezone: UTC+1.00