Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 2

Waxing Gibbous 100%

14:31

07:48

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

Sun - Rise: 08:08, Set: 16:07, Transit: 12:08. Moon - Rise: 14:31, Set: 07:48. Civil Dark: 16:47 - 07:29. Nautical Dark: 17:29 - 06:46. Astro Dark: 18:10 - 06:05

Total Clouds (% Sky Obscured)

98
94
94
64
0
0
0
8
39
37
27
26
38
34
18
22
46
41
34
10
0
16
0
0

Low Clouds (% Sky Obscured)

17
29
28
0
0
0
0
8
39
37
27
26
38
34
18
22
46
41
34
10
0
16
0
0

Medium Clouds (% Sky Obscured)

43
40
14
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)

5
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 (%)

35
19
4
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
7
8
10
13
15
16
16
15
13
11
10
8
7
8
9
10
11
11
12
12
11
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-5
-5
-4
-4
-2
-2
-2
-2
-3
-3
-3
-3
-3
-3
-3
-3
-4
-5
-5
-5
-5
-5
-5
-5

Dew Point (°C)

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

Relative Humidity (%)

86
84
89
81
79
76
73
73
73
77
80
83
86
87
89
89
89
87
89
87
84
84
84
83

Pressure (mb)

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

Ozone (du)

351
350
344
340
350
346
335
327
320
315
309
310
304
300
304
310
313
322
334
343
348
350
349
353

Saturday 3

Full Moon 99%

15:51

08:45

07 Good
08 Good
09 Good
10 Good
11 Good
12 Good
13 Good
14 Good
15 Good
16 Good
17 Good
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

Sun - Rise: 08:08, Set: 16:08, Transit: 12:08. Moon - Rise: 15:51, Set: 08:45. Civil Dark: 16:48 - 07:29. Nautical Dark: 17:30 - 06:46. Astro Dark: 18:11 - 06:05

Total Clouds (% Sky Obscured)

0
0
0
0
7
8
8
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
7
8
8
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-6
-5
-5
-5
-4
-3
-3
-3
-2
-3
-4
-3
-4
-5
-5
-5
-5
-6
-6
-6
-6
-6
-6
-6

Dew Point (°C)

-4
-5
-5
-5
-5
-4
-4
-4
-4
-3
-4
-5
-5
-5
-6
-6
-6
-6
-7
-7
-7
-7
-7
-7

Relative Humidity (%)

83
75
74
71
66
66
66
68
65
74
75
70
75
78
72
72
72
71
71
69
71
71
71
73

Pressure (mb)

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

Ozone (du)

353
358
358
358
358
357
358
354
353
351
353
346
351
354
359
361
365
367
363
366
362
359
356
356

Sunday 4

Waning Gibbous 96%

17:21

09:23

07 Good
08 Good
09 Good
10 Good
11 Good
12 Good
13 Good
14 Good
15 Good
16 OK
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

Sun - Rise: 08:08, Set: 16:09, Transit: 12:09. Moon - Rise: 17:21, Set: 09:23. Civil Dark: 16:49 - 07:28. Nautical Dark: 17:31 - 06:46. Astro Dark: 18:12 - 06:05

Total Clouds (% Sky Obscured)

0
0
0
0
2
1
1
3
13
34
43
41
54
41
34
61
61
69
80
87
92
96
93
88

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
5
24
19
5
5
2
8
20
19
20
25
30
25
9
11

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
1
3
8
8
6
41
54
41
17
21
61
26
38
51
34
45
52
67

High Clouds (% Sky Obscured)

0
0
0
0
2
1
1
2
2
2
2
2
2
1
1
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
0
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
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
1
10
52
36
9
1
0
0
0
1
0
0
1
2
5

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.4
0.2
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
76
72
68
66
64
62
65
70
75
80
89
98
96
96
96
96
94
94
94
94
91
94
96

Pressure (mb)

1016
1016
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1014
1014

Ozone (du)

353
353
357
359
360
364
365
364
363
367
370
372
378
383
387
389
392
394
389
385
391
396
396
397

Monday 5

Waning Gibbous 90%

18:51

09:49

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

Sun - Rise: 08:08, Set: 16:11, Transit: 12:09. Moon - Rise: 18:51, Set: 09:49. Civil Dark: 16:50 - 07:28. Nautical Dark: 17:32 - 06:45. Astro Dark: 18:13 - 06:05

Total Clouds (% Sky Obscured)

84
87
70
50
34
29
22
17
11
7
2
7
3
1
0
0
1
0
0
0
9
18
29
43

Low Clouds (% Sky Obscured)

23
33
36
37
34
29
22
17
11
7
1
6
2
1
0
0
1
0
0
0
1
1
2
1

Medium Clouds (% Sky Obscured)

72
76
50
26
2
2
0
0
0
0
0
3
1
0
0
0
0
0
0
0
0
0
0
17

High Clouds (% Sky Obscured)

0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
18
28
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 (%)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-4
-4
-3
-3
-4
-4
-4
-4
-3
-3
-4
-4
-4
-5
-5
-6
-6
-6
-7
-7
-7
-7
-7
-7

Relative Humidity (%)

94
94
94
86
77
71
71
73
78
84
84
87
86
86
84
82
82
82
81
81
82
82
82
84

Pressure (mb)

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

Ozone (du)

406
409
409
411
409
396
394
394
392
389
392
396
397
395
389
387
389
390
386
386
387
388
384
381

Tuesday 6

Waning Gibbous 83%

20:16

10:07

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
06 Bad

Sun - Rise: 08:07, Set: 16:12, Transit: 12:09. Moon - Rise: 20:16, Set: 10:07. Civil Dark: 16:51 - 07:28. Nautical Dark: 17:34 - 06:45. Astro Dark: 18:14 - 06:05

Total Clouds (% Sky Obscured)

54
70
76
86
100
100
100
100
100
100
100
79
89
100
94
93
97
85
69
54
69
85
100
78

Low Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
6
12
18
0
0
0
19
38
57
45
33
20
42
64
82
64

Medium Clouds (% Sky Obscured)

32
50
58
69
100
100
100
100
100
100
100
76
80
76
54
31
16
16
19
19
22
25
27
15

High Clouds (% Sky Obscured)

12
7
4
4
17
19
20
20
20
15
15
43
30
13
5
2
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
8
7
5
4
6
7
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
Sleet
Sleet
None
None
None
None
None
None
None
Snow
Snow
Snow

Precipitation Probability (%)

0
0
1
1
0
1
0
0
0
2
12
49
55
55
41
26
2
3
4
4
30
45
56
54

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-5
-5
-4
-3
-2
-0
0
0
0
-0
-0
0
-2
-2
-2
-2
-3
-3
-3
-3
-3
-3
-2
-2

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
84
81
75
71
71
75
78
81
86
89
84
87
92
96
94
92
91
89
87
86
86
84
84

Pressure (mb)

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

Ozone (du)

383
377
374
374
376
379
381
382
381
384
389
389
391
392
394
395
396
396
396
396
395
395
395
396

Wednesday 7

Waning Gibbous 74%

21:36

10:20

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

Sun - Rise: 08:07, Set: 16:13, Transit: 12:10. Moon - Rise: 21:36, Set: 10:20. Civil Dark: 16:52 - 07:28. Nautical Dark: 17:35 - 06:45. Astro Dark: 18:15 - 06:05

Total Clouds (% Sky Obscured)

63
45
37
30
23
16
9
2
19
36
53
58
62
68
65
61
58
49
47
32
46
64
68
79

Low Clouds (% Sky Obscured)

50
36
31
26
21
14
8
1
17
34
50
52
61
64
51
45
34
23
11
0
16
33
49
68

Medium Clouds (% Sky Obscured)

4
0
1
1
2
3
4
2
3
1
0
19
41
61
65
61
58
49
47
32
46
64
68
79

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
10
19
36
37
36
40
38
35
32
35
38
50
60

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

Snow
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
28
16
6
0
0
0
0
0
0
0
2
2
0
1
1
0
0
0
0
4
7
8
29

Precipitation Amount (mm)

0.2
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
5
6
7
8
7
6
6
5
5
4
4
4
4
4
4
5
5
6
6
6
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-5
-5
-6
-6
-6
-6
-3
-3
-4
-4
-4
-3
-6
-5
-5
-5
-6
-6
-5
-6
-6
-6
-6
-7

Dew Point (°C)

-5
-4
-5
-4
-3
-3
-2
-2
-2
-3
-4
-4
-4
-4
-4
-4
-4
-3
-3
-3
-3
-3
-3
-2

Relative Humidity (%)

82
83
81
81
81
80
81
83
84
86
89
92
91
91
91
89
87
87
89
89
91
89
87
87

Pressure (mb)

1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1013
1013
1012
1012
1011
1011

Ozone (du)

395
394
393
390
386
383
378
373
368
368
369
369
357
346
334
329
324
319
320
321
322
324
327
329

Thursday 8

Waning Gibbous 64%

22:52

10:32

Sun - Rise: 08:06, Set: 16:14, Transit: 12:10. Moon - Rise: 22:52, Set: 10:32. Civil Dark: 16:53 - 07:27. Nautical Dark: 17:36 - 06:45. Astro Dark: 18:16 - 06:04

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 02/01/26 07:47:11. Forecast: 02/01/26 to 08/01/26. Timezone: UTC+0.00