Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 9

Waning Gibbous 50%

03:52

11:00

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

Sun - Rise: 06:15, Set: 19:51, Transit: 13:04. Moon - Rise: 03:52, Set: 11:00. Civil Dark: 20:27 - 05:40. Nautical Dark: 21:10 - 04:56. Astro Dark: 21:58 - 04:08

Total Clouds (% Sky Obscured)

22
39
53
62
47
10
6
5
2
3
30
94
100
100
100
100
100
100
100
100
79
47
47
100

Low Clouds (% Sky Obscured)

22
39
53
41
41
8
6
5
0
3
0
0
3
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

22
39
53
11
4
0
0
0
0
0
0
6
22
56
100
100
100
100
100
97
79
33
43
86

High Clouds (% Sky Obscured)

22
39
50
44
22
0
0
0
0
0
30
91
100
100
100
100
100
100
100
100
42
47
14
57

ISS Passover

Visibility (miles)

9
6
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 (%)

26
40
25
6
13
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)

13
14
19
17
19
18
15
12
11
11
10
11
11
11
9
8
7
6
6
6
4
5
7
9

Chance of Frost

Temperature (°C)

15
14
12
11
11
10
8
7
6
5
4
4
3
3
3
3
3
3
4
5
6
7
9
11

Feels Like (°C)

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

Dew Point (°C)

10
11
9
7
8
6
4
2
1
0
-0
0
0
0
0
0
0
0
1
0
0
1
2
3

Relative Humidity (%)

72
83
79
75
77
78
73
72
70
71
73
76
79
80
83
83
80
80
77
72
67
62
59
57

Pressure (mb)

1016
1016
1016
1016
1017
1018
1019
1020
1021
1021
1022
1022
1023
1023
1023
1023
1022
1022
1022
1022
1022
1021
1021
1020

Ozone (du)

370
369
378
389
394
396
402
407
405
400
391
385
379
373
371
370
368
370
369
368
366
364
363
360

Friday 10

Third Quarter 40%

04:17

12:17

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
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:13, Set: 19:53, Transit: 13:04. Moon - Rise: 04:17, Set: 12:17. Civil Dark: 20:28 - 05:38. Nautical Dark: 21:12 - 04:54. Astro Dark: 22:01 - 04:04

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
93
47
35

Low Clouds (% Sky Obscured)

0
0
18
0
0
23
0
39
0
0
0
0
0
0
0
66
93
92
76
88
53
46
47
33

Medium Clouds (% Sky Obscured)

60
100
100
100
100
100
87
85
78
32
49
54
60
66
73
66
68
73
56
64
53
0
0
0

High Clouds (% Sky Obscured)

97
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
92
47
2

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
4
0
1
8

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
Very Light Rain
None
Very Light Rain
None
None

Precipitation Probability (%)

0
0
3
2
2
4
19
0
0
0
0
0
0
1
2
27
29
50
67
66
51
53
33
49

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.3
0
0.3
0
0.2

Wind Speed/Direction (mph)

10
11
12
11
11
11
12
12
12
13
14
14
16
16
16
15
15
15
15
14
17
16
14
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

57
57
61
66
67
67
65
65
65
66
70
68
70
69
70
74
81
85
88
91
94
96
96
81

Pressure (mb)

1019
1018
1017
1016
1015
1014
1013
1012
1012
1010
1009
1008
1006
1005
1004
1003
1002
1001
1001
1001
1002
1003
1003
1004

Ozone (du)

359
356
353
351
351
351
351
353
353
354
353
353
352
351
350
350
352
354
355
356
359
365
370
377

Saturday 11

Waning Crescent 30%

04:35

13:36

14 Bad
15 Bad
16 OK
17 Bad
18 Bad
19 Bad
20 OK
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

Sun - Rise: 06:11, Set: 19:55, Transit: 13:04. Moon - Rise: 04:35, Set: 13:36. Civil Dark: 20:30 - 05:35. Nautical Dark: 21:14 - 04:51. Astro Dark: 22:03 - 04:01

Total Clouds (% Sky Obscured)

12
4
36
38
66
72
25
100
100
68
61
56
50
81
82
85
76
73
92
65
58
64
90
90

Low Clouds (% Sky Obscured)

7
0
0
34
40
33
24
55
57
49
42
44
50
77
76
81
74
71
81
65
55
51
68
67

Medium Clouds (% Sky Obscured)

12
4
18
16
66
35
3
100
46
4
4
56
0
4
0
1
0
9
17
25
33
42
51
47

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
7
13
21
37
51
69
82

ISS Passover

Visibility (miles)

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

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

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

Precipitation Probability (%)

57
37
4
28
25
1
2
47
9
28
4
1
3
1
17
1
4
0
0
15
13
36
53
55

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

20
21
19
18
20
19
18
19
20
19
17
18
17
17
17
17
16
16
18
19
21
22
22
20

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
68
65
62
69
76
77
77
85
81
86
82
79
83
74
78
83
82
81
78
76
69
72
77

Pressure (mb)

1004
1004
1004
1004
1004
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1006
1006
1006
1006
1006
1006

Ozone (du)

387
400
410
409
414
418
421
425
428
427
425
424
431
428
425
424
425
426
432
438
445
451
458
464

Sunday 12

Waning Crescent 20%

04:49

No Set

14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 OK
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

Sun - Rise: 06:09, Set: 19:56, Transit: 13:03. Moon - Rise: 04:49, Set: No Set. Civil Dark: 20:32 - 05:33. Nautical Dark: 21:16 - 04:48. Astro Dark: 22:06 - 03:58

Total Clouds (% Sky Obscured)

92
51
56
51
51
43
39
38
52
51
73
71
67
66
75
84
94
89
79
71
58
81
67
74

Low Clouds (% Sky Obscured)

67
39
39
40
41
43
39
38
42
39
36
41
42
48
66
70
60
51
42
42
48
58
67
65

Medium Clouds (% Sky Obscured)

47
50
48
45
42
37
31
24
33
30
59
52
42
42
26
65
47
78
35
29
21
58
8
28

High Clouds (% Sky Obscured)

86
51
56
44
23
15
7
0
0
0
0
0
0
0
36
13
25
8
13
10
1
0
0
0

ISS Passover

Visibility (miles)

9
9
7
9
9
9
9
9
9
9
9
9
9
9
8
8
9
9
9
9
9
9
9
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
Very 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
Very Light Rain

Precipitation Probability (%)

54
62
55
34
28
21
13
0
0
0
0
0
3
21
45
22
4
0
0
5
25
29
41
56

Precipitation Amount (mm)

0
0.3
0.2
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)

19
19
18
17
16
15
13
12
10
9
8
7
7
6
6
7
6
5
6
7
7
8
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
73
74
73
72
72
75
79
83
86
93
93
96
94
93
94
96
98
93
84
75
69
65
65

Pressure (mb)

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

Ozone (du)

466
466
466
468
469
473
478
481
479
476
474
475
477
480
481
484
489
490
490
490
487
482
481
482

Monday 13

Waning Crescent 12%

05:01

14:57

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 Good
10 Good
11 OK
12 OK
13 OK

Sun - Rise: 06:07, Set: 19:58, Transit: 13:03. Moon - Rise: 05:01, Set: 14:57. Civil Dark: 20:34 - 05:31. Nautical Dark: 21:19 - 04:46. Astro Dark: 22:09 - 03:55

Total Clouds (% Sky Obscured)

78
80
77
72
69
53
52
45
45
45
60
61
52
47
74
82
100
67
32
1
12
22
32
38

Low Clouds (% Sky Obscured)

61
52
57
61
66
41
21
7
5
3
0
23
47
47
74
82
100
67
32
0
11
22
32
34

Medium Clouds (% Sky Obscured)

55
66
63
43
40
35
35
35
35
30
40
37
29
16
11
5
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
1
1
1
1
1
3

ISS Passover

Visibility (miles)

5
4
4
7
9
7
9
7
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

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
None
None
None
None
None

Precipitation Probability (%)

62
68
68
56
44
39
30
23
8
3
0
1
0
0
0
0
0
0
0
0
1
1
0
6

Precipitation Amount (mm)

0.2
0.3
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)

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

Chance of Frost

Temperature (°C)

11
11
11
10
9
9
8
7
6
5
4
4
3
3
3
3
3
3
5
7
9
10
12
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

66
73
77
87
88
90
91
93
94
96
94
96
94
94
94
94
94
96
89
87
81
74
67
63

Pressure (mb)

1009
1009
1009
1010
1010
1010
1011
1012
1012
1013
1013
1014
1014
1015
1015
1016
1016
1017
1018
1018
1019
1019
1019
1019

Ozone (du)

482
480
474
473
473
473
472
468
466
459
453
448
442
436
429
419
408
397
390
383
377
373
369
365

Tuesday 14

Waning Crescent 6%

05:12

16:18

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
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:04, Set: 20:00, Transit: 13:03. Moon - Rise: 05:12, Set: 16:18. Civil Dark: 20:36 - 05:28. Nautical Dark: 21:21 - 04:43. Astro Dark: 22:12 - 03:52

Total Clouds (% Sky Obscured)

45
53
70
84
97
95
92
90
88
87
88
82
75
69
75
81
79
86
93
100
100
100
100
100

Low Clouds (% Sky Obscured)

34
39
43
47
51
34
21
5
5
1
0
0
2
3
0
0
5
11
16
18
24
31
34
49

Medium Clouds (% Sky Obscured)

5
7
18
27
13
15
20
25
43
61
77
61
51
41
44
55
55
51
39
36
53
68
87
91

High Clouds (% Sky Obscured)

5
8
29
52
77
66
52
38
33
24
15
12
11
6
31
59
79
83
85
93
79
68
61
51

ISS Passover

Visibility (miles)

9
9
8
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 (%)

9
11
11
10
8
8
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
23

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
15
14
14
14
15
10
9
8
8
8
8
4
4
4
4
4
4
5
5
6
6
7
7

Dew Point (°C)

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

Relative Humidity (%)

64
66
67
70
74
76
76
76
76
81
87
94
91
88
84
85
87
88
85
81
79
80
80
82

Pressure (mb)

1020
1020
1020
1020
1020
1021
1021
1022
1022
1022
1023
1023
1023
1022
1022
1022
1022
1021
1021
1021
1021
1021
1020
1019

Ozone (du)

362
360
357
355
352
350
347
345
343
343
342
341
345
349
352
353
354
354
353
352
351
350
350
349

Wednesday 15

Waning Crescent 2%

05:24

17:42

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

Sun - Rise: 06:02, Set: 20:02, Transit: 13:03. Moon - Rise: 05:24, Set: 17:42. Civil Dark: 20:38 - 05:26. Nautical Dark: 21:23 - 04:40. Astro Dark: 22:14 - 03:48

Total Clouds (% Sky Obscured)

99
99
95
92
88
91
93
96
95
94
95
87
79
73
74
70
71

Low Clouds (% Sky Obscured)

67
85
70
56
41
61
80
96
95
94
95
87
75
62
58
55
52

Medium Clouds (% Sky Obscured)

95
98
88
75
63
50
35
17
9
10
5
4
2
0
3
8
13

High Clouds (% Sky Obscured)

45
37
24
16
8
6
3
0
1
1
2
4
5
4
13
18
26

ISS Passover

Visibility (miles)

8
7
5
7
8
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

Precipitation Type

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

Precipitation Probability (%)

43
66
68
62
44
35
25
21
32
34
30
23
15
1
2
0
0

Precipitation Amount (mm)

0
0.4
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
14
13
13
13
12
12
12
11
11
11
10
10
9
9
9
8

Feels Like (°C)

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

Dew Point (°C)

12
12
12
12
12
12
11
11
11
10
10
10
9
9
9
8
7

Relative Humidity (%)

84
89
93
95
93
95
93
95
95
95
95
95
95
96
96
95
93

Pressure (mb)

1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

349
348
348
349
350
351
354
356
358
358
358
358
358
359
359
359
359

Forecast for Northampton, Northamptonshire, United Kingdom (52.24,-0.89)

Generated: 09/04/26 14:25:10. Forecast: 09/04/26 to 15/04/26. Timezone: UTC+1.00