Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 6

Waning Gibbous 77%

01:29

07:39

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

Sun - Rise: 06:29, Set: 19:48, Transit: 13:09. Moon - Rise: 01:29, Set: 07:39. Civil Dark: 20:23 - 05:52. Nautical Dark: 21:04 - 05:10. Astro Dark: 21:50 - 04:24

Total Clouds (% Sky Obscured)

22
39
53
63
51
55
88
54
46
45
23
0
0
0
23
25
5
1
7
6
0
0
0
0

Low Clouds (% Sky Obscured)

0
0
8
6
33
42
57
53
46
45
23
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

22
3
52
17
13
11
17
1
0
0
0
0
0
0
20
23
5
0
5
4
0
0
0
0

High Clouds (% Sky Obscured)

22
39
53
63
51
55
68
37
35
23
10
0
0
0
3
3
4
1
4
4
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-1
-1
1
3
4
5
7
8
8
9
10
10
11
10
8
6
5
5
5
5
5
5
4
4

Dew Point (°C)

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

Relative Humidity (%)

89
88
83
76
71
67
65
62
61
62
64
66
72
78
85
82
78
78
79
79
82
85
86
86

Pressure (mb)

1026
1027
1027
1027
1027
1026
1026
1025
1025
1025
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023
1022

Ozone (du)

366
365
364
363
363
361
360
361
360
360
362
365
368
368
365
364
363
361
358
356
356
357
355
354

Tuesday 7

Waning Gibbous 69%

02:28

08:14

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

Sun - Rise: 06:27, Set: 19:50, Transit: 13:08. Moon - Rise: 02:28, Set: 08:14. Civil Dark: 20:24 - 05:50. Nautical Dark: 21:06 - 05:08. Astro Dark: 21:52 - 04:22

Total Clouds (% Sky Obscured)

0
3
0
4
0
3
8
100
7
11
21
6
4
4
1
12
0
0
0
0
37
100
100
100

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
2
2
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2

High Clouds (% Sky Obscured)

0
3
0
4
0
3
8
100
7
11
21
6
4
4
1
12
0
0
0
0
37
100
88
89

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)

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

Chance of Frost

Temperature (°C)

6
6
7
9
11
13
15
16
18
18
19
18
18
17
15
14
13
12
12
12
11
11
10
9

Feels Like (°C)

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

Dew Point (°C)

4
4
4
4
5
7
8
9
10
11
12
13
13
13
12
11
10
10
10
10
9
9
8
8

Relative Humidity (%)

88
86
78
74
69
65
63
62
62
62
66
69
72
78
82
82
84
86
87
87
87
88
88
88

Pressure (mb)

1022
1023
1023
1023
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1022
1023
1023
1023
1023
1023
1023
1023
1023
1023

Ozone (du)

351
349
349
345
341
340
339
339
339
341
342
343
342
343
343
343
343
343
344
345
345
345
345
345

Wednesday 8

Waning Gibbous 66%

03:15

09:00

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

Sun - Rise: 06:25, Set: 19:52, Transit: 13:08. Moon - Rise: 03:15, Set: 09:00. Civil Dark: 20:26 - 05:48. Nautical Dark: 21:08 - 05:05. Astro Dark: 21:55 - 04:19

Total Clouds (% Sky Obscured)

90
36
18
30
55
79
62
45
64
68
68
46
46
8
4
0
13
16
17
46
73
94
98
99

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
26
31
23
17
9
0
1
1
0
0
0
1
17
35
52
46
45

Medium Clouds (% Sky Obscured)

7
17
8
11
9
6
9
11
8
8
4
4
0
0
0
0
0
0
0
0
3
0
3
7

High Clouds (% Sky Obscured)

73
15
3
2
43
68
44
20
39
42
24
15
10
1
1
0
7
6
10
39
66
85
92
96

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
1
0
0
2
0
1
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)

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

Chance of Frost

Temperature (°C)

9
9
10
13
15
17
18
19
20
20
20
20
20
18
16
15
14
13
12
12
11
11
10
10

Feels Like (°C)

8
8
9
12
15
16
17
19
20
19
20
20
20
18
16
15
14
12
12
11
10
9
8
8

Dew Point (°C)

7
7
8
9
10
11
12
13
14
14
14
15
16
16
14
13
12
12
11
11
11
10
9
9

Relative Humidity (%)

87
87
84
76
73
69
67
68
67
67
68
70
78
85
87
89
90
92
93
93
95
95
91
93

Pressure (mb)

1024
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023
1023
1023
1024
1024
1024
1024
1024
1024
1024
1024
1023
1024

Ozone (du)

344
344
344
345
348
350
349
349
350
349
348
351
351
353
356
358
358
356
357
356
355
355
355
356

Thursday 9

Waning Gibbous 59%

03:50

10:00

06 Bad
07 Bad
08 Bad
09 Bad
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

Sun - Rise: 06:22, Set: 19:53, Transit: 13:08. Moon - Rise: 03:50, Set: 10:00. Civil Dark: 20:28 - 05:45. Nautical Dark: 21:10 - 05:03. Astro Dark: 21:57 - 04:16

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
100
100
100

Low Clouds (% Sky Obscured)

43
62
80
95
74
49
23
24
24
23
27
40
38
29
29
39
33
26
15
10
4
1
2
2

Medium Clouds (% Sky Obscured)

12
12
9
46
42
56
8
55
60
29
37
8
14
11
12
36
37
10
12
34
57
74
95
92

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
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 (%)

0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
8

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
10
12
13
13
14
15
15
15
14
13
12
10
8
6
5
4
3
3
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
93
90
83
75
66
61
64
69
71
70
76
84
87
90
91
87
84
85
88
88
93
96
98

Pressure (mb)

1023
1023
1024
1024
1024
1024
1024
1025
1025
1025
1025
1025
1026
1026
1027
1027
1028
1027
1027
1027
1026
1025
1025
1024

Ozone (du)

353
355
356
357
357
355
353
352
347
345
346
345
344
344
342
344
345
345
344
343
344
344
342
341

Friday 10

Third Quarter 50%

04:16

11:09

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

Sun - Rise: 06:20, Set: 19:55, Transit: 13:08. Moon - Rise: 04:16, Set: 11:09. Civil Dark: 20:30 - 05:43. Nautical Dark: 21:12 - 05:00. Astro Dark: 22:00 - 04:13

Total Clouds (% Sky Obscured)

100
97
95
92
94
97
100
95
95
95
100
95
95
38
44
37
26
12
0
8
17
25
24
23

Low Clouds (% Sky Obscured)

1
0
0
0
15
31
44
31
15
0
0
0
0
38
43
37
25
12
0
8
17
24
23
23

Medium Clouds (% Sky Obscured)

97
68
66
92
90
70
52
55
50
49
35
18
4
3
3
2
3
5
0
6
7
8
19
23

High Clouds (% Sky Obscured)

100
76
52
41
60
79
99
67
65
75
80
80
80
12
12
7
5
6
0
6
5
7
16
23

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 (%)

9
7
2
0
0
0
0
0
0
0
0
0
0
26
18
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
9
10
11
12
13
13
12
12
11
11
11
12
12
12
11
10
9
8
7
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
96
93
87
78
75
69
68
67
67
66
70
76
84
87
90
93
93
91
93
91
91
90
90

Pressure (mb)

1024
1023
1023
1023
1022
1022
1021
1020
1019
1019
1018
1017
1016
1016
1013
1013
1014
1014
1014
1013
1013
1013
1013
1013

Ozone (du)

340
341
341
340
338
338
338
338
339
340
342
341
342
346
348
350
352
356
360
363
361
358
355
353

Saturday 11

Waning Crescent 39%

04:35

12:25

06 OK
07 OK
08 OK
09 OK
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

Sun - Rise: 06:18, Set: 19:57, Transit: 13:07. Moon - Rise: 04:35, Set: 12:25. Civil Dark: 20:32 - 05:41. Nautical Dark: 21:14 - 04:58. Astro Dark: 22:02 - 04:10

Total Clouds (% Sky Obscured)

21
25
28
31
44
57
72
76
82
84
73
63
51
70
82
82
81
81
89
93
96
100
97
95

Low Clouds (% Sky Obscured)

20
21
20
19
24
28
32
30
33
36
34
29
22
28
30
25
23
39
58
57
56
55
61
66

Medium Clouds (% Sky Obscured)

21
25
28
31
44
57
72
65
41
20
22
26
32
51
72
82
81
79
74
65
58
51
64
76

High Clouds (% Sky Obscured)

21
25
19
9
9
4
0
0
0
0
0
0
10
47
62
73
73
64
61
72
84
100
72
43

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
6
3
0
3
6
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
Very Light Rain
None
None
None
None
None
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
12
20
33
36
42
51
39
30
21
27
39
53
49
38
11
9
9
6
12
9

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

7
7
9
12
14
15
17
18
18
18
18
12
12
16
14
13
12
13
14
15
15
15
16
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
4
4
6
7
8
8
9
17
16
15
15
15
15
2
2
2
1
1
0
0
0
0
0

Dew Point (°C)

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

Relative Humidity (%)

90
90
88
85
83
80
75
72
73
76
77
82
87
93
93
94
94
94
94
94
94
93
93
93

Pressure (mb)

1013
1013
1012
1012
1011
1011
1010
1010
1010
1010
1009
1010
1011
1011
1012
1013
1014
1014
1014
1014
1014
1014
1015
1015

Ozone (du)

350
348
347
347
346
346
347
347
348
349
349
351
352
353
357
360
364
364
364
364
361
359
356
354

Sunday 12

Waning Crescent 30%

04:50

13:43

06 Bad
07 Bad
08 Bad
09 Bad
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

Sun - Rise: 06:16, Set: 19:58, Transit: 13:07. Moon - Rise: 04:50, Set: 13:43. Civil Dark: 20:33 - 05:39. Nautical Dark: 21:17 - 04:55. Astro Dark: 22:05 - 04:07

Total Clouds (% Sky Obscured)

93
95
95
96
98
99
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

71
73
74
74
76
77
78
72
70
64
76
86
93
95
98
97
95
94
94

Medium Clouds (% Sky Obscured)

90
88
87
84
86
91
95
96
97
98
99
99
100
100
100
100
97
94
90

High Clouds (% Sky Obscured)

29
40
51
57
71
86
100
75
47
16
32
50
65
45
29
15
47
75
100

ISS Passover

Visibility (miles)

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

Fog (%)

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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain

Precipitation Probability (%)

2
7
7
7
40
53
57
71
80
90
78
77
89
78
69
65
67
69
73

Precipitation Amount (mm)

0
0
0
0
0
0
0.2
0.4
0.5
0.7
0.4
0.4
0.7
0.5
0.3
0.3
0.3
0.3
0.4

Wind Speed/Direction (mph)

13
12
12
13
13
13
13
12
13
13
13
13
13
13
13
13
13
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
4
4
4
4
4
5
5
5
5
5
5
5
5
5
4
4
4
3

Relative Humidity (%)

93
93
90
85
84
85
88
91
93
94
96
96
96
96
98
96
98
96
98

Pressure (mb)

1015
1015
1016
1016
1016
1016
1015
1015
1015
1014
1014
1013
1013
1012
1012
1011
1011
1010
1010

Ozone (du)

352
351
354
357
360
360
360
361
361
361
361
363
364
366
370
374
378
378
377

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

Generated: 06/04/26 06:52:13. Forecast: 06/04/26 to 12/04/26. Timezone: UTC+1.00