Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 6

Waning Gibbous 77%

01:26

08:10

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 Bad
18 Bad

Sun - Rise: 06:24, Set: 19:45, Transit: 13:05. Moon - Rise: 01:26, Set: 08:10. Civil Dark: 20:20 - 05:49. Nautical Dark: 21:02 - 05:07. Astro Dark: 21:47 - 04:21

Total Clouds (% Sky Obscured)

0
0
0
17
15
10
0
10
0
0
0
0
0
0
0
0
0
0
0
0
3
2
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
8
8
5
0
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
1

High Clouds (% Sky Obscured)

0
0
0
3
3
3
0
3
0
0
0
0
0
0
0
0
0
0
0
0
3
2
100
81

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
6
5
6
6
6
6
6
6
6
6
7
7
9
11
12
14
14
14
14
14
12
12
11

Chance of Frost

Temperature (°C)

12
9
8
7
6
6
6
5
5
5
5
5
5
7
9
11
14
16
18
19
19
20
19
18

Feels Like (°C)

11
7
6
5
4
5
4
4
4
3
3
3
3
4
6
8
10
12
14
16
16
17
16
15

Dew Point (°C)

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

Relative Humidity (%)

68
70
73
73
74
78
80
85
86
86
88
89
88
81
70
63
56
53
50
51
52
56
59
65

Pressure (mb)

1024
1024
1025
1025
1025
1024
1024
1024
1024
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1022
1021
1021
1021
1021

Ozone (du)

369
370
369
366
364
362
360
359
357
355
354
354
354
354
352
350
347
344
344
343
343
343
343
343

Tuesday 7

Waning Gibbous 69%

02:25

08:57

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

Sun - Rise: 06:22, Set: 19:47, Transit: 13:05. Moon - Rise: 02:25, Set: 08:57. Civil Dark: 20:21 - 05:47. Nautical Dark: 21:04 - 05:05. Astro Dark: 21:50 - 04:18

Total Clouds (% Sky Obscured)

100
98
52
4
0
0
20
59
27
100
100
40
43
90
43
30
54
61
16
54
80
66
47
42

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
17
29
18
3

Medium Clouds (% Sky Obscured)

0
24
18
0
0
0
2
3
3
28
18
16
18
10
14
30
54
10
5
36
57
51
20
17

High Clouds (% Sky Obscured)

46
47
7
4
0
0
17
55
27
100
97
40
9
90
43
17
37
61
16
54
70
45
30
6

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

Chance of Frost

Temperature (°C)

17
15
13
12
11
10
10
9
9
9
8
8
8
9
12
14
17
19
20
22
22
22
22
22

Feels Like (°C)

14
14
13
11
10
8
9
8
7
6
6
7
6
9
10
13
15
18
19
21
21
21
21
21

Dew Point (°C)

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

Relative Humidity (%)

73
76
79
80
83
84
87
88
88
88
88
88
88
82
76
71
67
64
64
62
63
66
69
75

Pressure (mb)

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

Ozone (du)

343
345
346
347
349
351
352
351
350
350
350
349
348
347
347
346
347
349
349
351
351
351
352
352

Wednesday 8

Waning Gibbous 59%

03:12

09:56

19 OK
20 OK
21 OK
22 OK
23 OK
00 OK
01 Good
02 OK
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 OK
18 OK

Sun - Rise: 06:19, Set: 19:49, Transit: 13:05. Moon - Rise: 03:12, Set: 09:56. Civil Dark: 20:23 - 05:45. Nautical Dark: 21:06 - 05:02. Astro Dark: 21:52 - 04:15

Total Clouds (% Sky Obscured)

34
24
31
26
12
16
2
35
63
74
98
100
100
99
100
100
100
92
77
66
54
46
29
26

Low Clouds (% Sky Obscured)

18
7
16
17
6
0
0
0
0
3
5
1
0
14
33
36
55
73
59
45
50
23
12
0

Medium Clouds (% Sky Obscured)

9
7
9
6
9
8
2
11
11
15
17
13
24
21
34
23
90
65
61
3
2
3
0
0

High Clouds (% Sky Obscured)

10
10
8
6
3
0
2
3
30
52
98
100
100
97
100
100
100
53
39
24
8
12
8
17

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
3
25
6
0
0
0
0
3
0
1
2
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
4
4
4
3
4
4
4
3
4
3
3
3
4
6
10
12
13
13
15
14
14
12
11

Chance of Frost

Temperature (°C)

21
19
17
15
15
14
13
13
12
12
12
11
11
12
14
15
15
15
15
15
15
14
13
12

Feels Like (°C)

22
19
18
16
15
15
14
13
13
11
11
10
10
11
12
12
12
12
11
11
12
10
10
10

Dew Point (°C)

18
17
16
14
13
12
12
12
11
11
11
10
10
10
11
11
11
9
8
9
10
10
8
8

Relative Humidity (%)

82
89
89
90
90
90
92
93
93
95
93
92
90
87
83
78
75
66
63
68
70
78
70
72

Pressure (mb)

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

Ozone (du)

352
352
354
357
358
359
356
354
353
353
353
353
355
358
356
355
357
360
361
364
362
362
361
361

Thursday 9

Waning Gibbous 50%

03:47

11:06

19 OK
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 OK
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
18 Bad

Sun - Rise: 06:17, Set: 19:50, Transit: 13:05. Moon - Rise: 03:47, Set: 11:06. Civil Dark: 20:25 - 05:42. Nautical Dark: 21:08 - 05:00. Astro Dark: 21:54 - 04:12

Total Clouds (% Sky Obscured)

48
75
100
93
86
80
66
56
47
64
74
82
87
94
100
100
100
100
100
100
97
85
82
85

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
4
11
13
10
5
6
8
4
2
4
2
0

Medium Clouds (% Sky Obscured)

2
1
1
0
0
0
8
12
17
22
27
82
87
94
100
98
97
90
79
43
35
46
53
60

High Clouds (% Sky Obscured)

45
71
100
92
85
77
55
32
10
11
17
23
30
36
42
58
78
100
100
100
97
85
82
85

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
3
6
4
6
4
0
1
0
0
7
12
14

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
7
5
4
3
3
2
2
1
1
0
0
1
3
3
5
7
9
9
10
10
11
11
11

Dew Point (°C)

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

Relative Humidity (%)

77
80
75
76
76
76
73
73
72
71
68
69
71
71
69
67
67
68
67
68
65
68
70
77

Pressure (mb)

1024
1025
1026
1026
1027
1027
1026
1026
1025
1025
1025
1024
1024
1024
1023
1023
1022
1021
1020
1019
1018
1017
1016
1016

Ozone (du)

358
358
357
356
355
355
353
353
352
349
349
347
349
349
348
347
347
346
345
345
345
345
345
346

Friday 10

Third Quarter 40%

04:13

12:21

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 OK
13 OK
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 06:15, Set: 19:52, Transit: 13:04. Moon - Rise: 04:13, Set: 12:21. Civil Dark: 20:27 - 05:40. Nautical Dark: 21:10 - 04:57. Astro Dark: 21:57 - 04:09

Total Clouds (% Sky Obscured)

84
79
79
84
89
96
100
100
94
96
99
100
93
86
76
62
43
20
30
43
57
71
85
99

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
13
27
40
0
0
0
0
0
0
0
0
7
31
51
72

Medium Clouds (% Sky Obscured)

64
59
58
63
68
69
66
80
76
81
93
84
62
69
76
62
43
20
30
43
57
71
67
58

High Clouds (% Sky Obscured)

84
79
78
78
79
91
100
100
87
83
86
100
85
70
40
25
20
15
10
10
10
35
63
86

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
7
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
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain

Precipitation Probability (%)

11
7
0
0
0
0
0
0
0
1
7
11
16
10
1
2
2
2
7
12
11
30
48
68

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
0.3

Wind Speed/Direction (mph)

10
8
8
7
7
7
8
7
7
7
6
5
4
8
10
11
12
13
13
12
10
10
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
9
8
9
8
9
8
7
7
8
8
7
7
7
8
8
9
10
11
15
15
15
14
14

Dew Point (°C)

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

Relative Humidity (%)

84
93
95
93
93
95
95
95
95
95
95
95
95
88
84
77
75
71
69
74
78
84
87
90

Pressure (mb)

1015
1015
1014
1014
1013
1012
1011
1011
1010
1010
1009
1009
1008
1010
1010
1009
1008
1008
1007
1007
1007
1007
1007
1007

Ozone (du)

347
350
350
351
355
353
351
353
354
357
362
364
363
362
360
358
357
355
353
355
356
358
359
359

Saturday 11

Waning Crescent 30%

04:32

13:40

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

Sun - Rise: 06:13, Set: 19:54, Transit: 13:04. Moon - Rise: 04:32, Set: 13:40. Civil Dark: 20:29 - 05:38. Nautical Dark: 21:12 - 04:55. Astro Dark: 21:59 - 04:06

Total Clouds (% Sky Obscured)

99
100
100
100
100
100
100
100
100
100
100
100
81
64
46
53
62
74
78
83
85
71
67
55

Low Clouds (% Sky Obscured)

78
83
88
74
60
46
39
27
20
16
17
18
21
27
31
21
14
4
19
33
48
42
36
31

Medium Clouds (% Sky Obscured)

64
69
76
84
92
99
99
98
90
74
60
63
69
64
46
53
62
61
73
83
85
71
67
55

High Clouds (% Sky Obscured)

91
95
100
100
100
100
100
100
100
100
100
100
81
62
46
46
41
40
40
40
50
40
40
50

ISS Passover

Visibility (miles)

2
4
7
9
8
8
8
8
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
Light Rain
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

Precipitation Probability (%)

81
86
82
79
72
56
43
31
18
11
2
0
0
0
0
1
5
4
15
20
21
18
14
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
8
7
7
6
6
6
2
2
1
1
1
1
-0
1
1
2
2
3
6
7
7
6
6

Dew Point (°C)

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

Relative Humidity (%)

93
95
95
96
94
94
93
90
90
88
88
89
88
82
75
70
64
59
55
54
54
53
57
62

Pressure (mb)

1008
1008
1009
1010
1010
1011
1011
1011
1012
1012
1012
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014

Ozone (du)

359
361
362
364
364
364
365
365
365
366
363
360
357
358
358
359
361
363
366
367
368
370
372
373

Sunday 12

Waning Crescent 20%

04:47

14:59

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

Sun - Rise: 06:11, Set: 19:55, Transit: 13:04. Moon - Rise: 04:47, Set: 14:59. Civil Dark: 20:30 - 05:35. Nautical Dark: 21:14 - 04:52. Astro Dark: 22:02 - 04:03

Total Clouds (% Sky Obscured)

59
64
66
57
46
30
31
39
40
50
61
61
58
56
57
53
52
54

Low Clouds (% Sky Obscured)

35
39
47
33
19
5
4
4
6
7
6
3
3
3
4
10
18
28

Medium Clouds (% Sky Obscured)

59
64
66
57
46
30
31
36
29
22
15
8
11
15
18
23
23
24

High Clouds (% Sky Obscured)

59
60
45
45
45
30
16
3
2
2
3
3
3
5
5
9
11
11

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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
21
24

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
68
69
71
72
72
75
77
82
85
83
82
82
75
69
63
59
55

Pressure (mb)

1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1018
1017
1017

Ozone (du)

375
376
378
379
380
380
380
381
381
382
383
383
384
385
387
388
388
387

Forecast for Reading, Reading, United Kingdom (51.45,-0.98)

Generated: 06/04/26 19:26:02. Forecast: 06/04/26 to 12/04/26. Timezone: UTC+1.00