Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 23

Waxing Crescent 46%

11:53

03:26

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

Sun - Rise: 05:51, Set: 20:17, Transit: 13:04. Moon - Rise: 11:53, Set: 03:26. Civil Dark: 20:53 - 05:14. Nautical Dark: 21:40 - 04:27. Astro Dark: 22:34 - 03:32

Total 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

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
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 (%)

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)

15
13
10
9
9
10
10
9
8
8
7
7
7
6
7
9
10
11
11
11
11
11
10
9

Chance of Frost

Temperature (°C)

17
16
13
11
9
8
7
6
6
5
4
3
3
3
5
7
9
11
13
15
16
17
18
18

Feels Like (°C)

15
14
12
9
7
6
6
4
4
3
2
1
1
2
3
4
7
9
11
13
14
15
16
17

Dew Point (°C)

11
11
9
7
5
4
5
5
4
3
2
1
0
0
0
1
3
3
4
5
6
7
7
10

Relative Humidity (%)

65
72
77
75
74
77
85
91
91
89
88
83
83
80
72
66
62
57
54
52
50
49
50
59

Pressure (mb)

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

Ozone (du)

371
373
376
380
382
383
386
387
388
388
388
387
385
382
380
379
378
376
377
376
372
370
369
368

Friday 24

First Quarter 58%

13:17

03:47

18 Good
19 Good
20 Good
21 Good
22 Good
23 Good
00 Good
01 Good
02 Good
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
16 Bad
17 Bad

Sun - Rise: 05:49, Set: 20:18, Transit: 13:04. Moon - Rise: 13:17, Set: 03:47. Civil Dark: 20:55 - 05:12. Nautical Dark: 21:42 - 04:24. Astro Dark: 22:37 - 03:28

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
68
71
50
96
100
100
100
100
100
100
100
100
100
96
76

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
42
29
54
57
82
95
100
100
100
100
92
68
41
33

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
56
3
45
84
98
93
97
100
100
100
100
81
15
15
20

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)

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

Chance of Frost

Temperature (°C)

17
16
14
11
10
8
7
6
5
4
3
3
3
3
6
9
11
13
14
15
16
16
16
16

Feels Like (°C)

16
16
13
11
9
7
6
5
4
3
2
1
-1
0
3
6
9
10
12
13
14
15
15
15

Dew Point (°C)

10
12
10
7
5
2
0
-2
-3
-5
-6
-6
-5
-4
-2
0
1
3
3
4
4
4
5
6

Relative Humidity (%)

64
74
76
75
69
64
62
58
55
53
52
54
56
60
58
55
51
49
47
46
46
45
46
49

Pressure (mb)

1023
1022
1023
1023
1023
1023
1024
1023
1023
1023
1022
1022
1022
1023
1023
1023
1023
1022
1022
1022
1022
1022
1021
1021

Ozone (du)

368
366
366
365
366
365
365
364
363
363
362
363
363
363
361
363
365
367
369
372
376
378
381
383

Saturday 25

Waxing Gibbous 68%

14:37

04:02

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 OK
11 OK
12 OK
13 OK
14 Good
15 Good
16 OK
17 Bad

Sun - Rise: 05:47, Set: 20:20, Transit: 13:04. Moon - Rise: 14:37, Set: 04:02. Civil Dark: 20:57 - 05:10. Nautical Dark: 21:44 - 04:22. Astro Dark: 22:40 - 03:25

Total Clouds (% Sky Obscured)

89
100
100
100
100
96
78
81
83
73
70
65
88
85
67
55
48
39
34
26
16
18
24
51

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
19
15
18
12
9
10
11
12
15
19

Medium Clouds (% Sky Obscured)

34
40
25
25
20
20
15
14
10
9
44
65
85
85
67
55
48
39
34
26
3
6
12
13

High Clouds (% Sky Obscured)

1
1
0
0
0
1
13
15
15
15
15
20
15
15
15
15
15
10
15
3
3
2
1
7

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
65
66
75
72
72
73
73
70
69
70
68
74
78
74
68
66
64
61
58
57
55
55
56

Pressure (mb)

1021
1022
1022
1023
1023
1023
1023
1024
1024
1024
1025
1025
1025
1026
1026
1027
1027
1027
1027
1026
1026
1026
1026
1026

Ozone (du)

382
381
380
378
378
378
377
377
377
375
372
371
370
369
368
367
367
368
366
366
367
367
366
366

Sunday 26

Waxing Gibbous 78%

15:54

04:14

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

Sun - Rise: 05:45, Set: 20:22, Transit: 13:04. Moon - Rise: 15:54, Set: 04:14. Civil Dark: 20:59 - 05:07. Nautical Dark: 21:46 - 04:19. Astro Dark: 22:43 - 03:22

Total Clouds (% Sky Obscured)

58
62
51
63
35
36
25
28
40
45
50
54
50
40
30
20
10
5
3
10
14
19
14
8

Low Clouds (% Sky Obscured)

27
18
9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
9
13
10
8

Medium Clouds (% Sky Obscured)

12
49
41
48
24
36
25
27
37
45
27
21
19
29
30
20
10
1
0
0
0
0
0
0

High Clouds (% Sky Obscured)

14
8
2
8
2
6
15
9
5
5
5
5
15
15
15
20
10
5
3
10
10
5
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
73
75
79
83
91
91
91
88
82
80
80
83
80
77
70
67
64
61
61
60
60
59
61

Pressure (mb)

1026
1026
1027
1027
1028
1028
1028
1028
1028
1029
1029
1029
1029
1029
1029
1030
1029
1029
1029
1028
1028
1028
1027
1027

Ozone (du)

366
365
363
364
364
366
366
366
366
368
368
369
369
369
371
372
372
372
372
372
372
372
373
373

Monday 27

Waxing Gibbous 86%

17:08

04:26

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

Sun - Rise: 05:43, Set: 20:23, Transit: 13:04. Moon - Rise: 17:08, Set: 04:26. Civil Dark: 21:01 - 05:05. Nautical Dark: 21:49 - 04:17. Astro Dark: 22:46 - 03:18

Total Clouds (% Sky Obscured)

6
6
5
5
25
45
65
44
23
0
0
1
4
41
22
11
2
0
0
0
0
0
16
32

Low Clouds (% Sky Obscured)

6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
32

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
2
6
6
7
2
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
1
1
2
17
35
48
31
20
0
0
1
4
34
15
5
2
0
0
0
0
0
16
32

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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
10
12
10
8
3
8
10

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
6
5
4
3
3
2
2
1
2
2
3
3
4
9
10
12
12
13
13
13
13
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
77
79
83
86
85
85
85
85
88
87
90
93
93
87
82
77
75
71
69
72
74
78
79

Pressure (mb)

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

Ozone (du)

373
373
374
372
372
372
371
370
368
366
364
363
364
365
366
367
369
371
373
375
374
373
372
371

Tuesday 28

Waxing Gibbous 93%

No Rise

04:37

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

Sun - Rise: 05:41, Set: 20:25, Transit: 13:04. Moon - Rise: No Rise, Set: 04:37. Civil Dark: 21:02 - 05:03. Nautical Dark: 21:51 - 04:14. Astro Dark: 22:50 - 03:15

Total Clouds (% Sky Obscured)

48
32
16
0
22
44
63
70
69
74
72
78
86
85
84
84
74
73
69
67
66
65
55
44

Low Clouds (% Sky Obscured)

48
32
16
0
22
32
39
40
46
53
67
78
86
85
84
84
74
73
69
67
66
65
55
44

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)

27
16
7
0
2
1
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
7
4
1
4
7
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 (%)

11
9
6
0
0
0
0
0
0
0
1
0
0
2
3
4
4
4
2
3
2
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
12
11
11
10
10
9
8
9
10
10
10
11
11
12
13
13
14
14
14
14
14
14
14

Chance of Frost

Temperature (°C)

15
15
13
11
9
7
6
5
4
4
3
4
5
6
7
8
10
11
12
13
14
14
15
14

Feels Like (°C)

12
12
10
10
10
8
8
7
2
2
3
2
2
2
3
3
3
3
4
4
11
11
11
11

Dew Point (°C)

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

Relative Humidity (%)

79
80
84
88
93
93
94
96
96
98
98
94
91
88
82
77
73
69
66
63
62
62
62
67

Pressure (mb)

1024
1024
1024
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1024
1024
1024
1023
1023

Ozone (du)

371
370
371
372
373
374
374
374
375
375
376
376
375
375
375
375
375
377
379
381
380
379
379
378

Wednesday 29

Waxing Gibbous 97%

18:22

04:48

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

Sun - Rise: 05:39, Set: 20:27, Transit: 13:04. Moon - Rise: 18:22, Set: 04:48. Civil Dark: 21:04 - 05:01. Nautical Dark: 21:53 - 04:12. Astro Dark: 22:53 - 03:11

Total Clouds (% Sky Obscured)

32
20
11
2
4
7
9
13
13
8
8
4
8
4
4
3
3
3
3

Low Clouds (% Sky Obscured)

32
20
11
0
4
7
9
13
13
8
8
4
8
4
3
1
2
2
3

Medium Clouds (% Sky Obscured)

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
0
0
0
0
0
0
0
0
0
0
1
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

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
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
2
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
76
81
87
91
94
94
98
96
94
94
94
94
93
85
78
71
67
64

Pressure (mb)

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

Ozone (du)

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

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

Generated: 23/04/26 18:05:28. Forecast: 23/04/26 to 29/04/26. Timezone: UTC+1.00