Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 8

Waning Gibbous 64%

22:52

10:42

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
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 08:06, Set: 16:14, Transit: 12:10. Moon - Rise: 22:52, Set: 10:42. Civil Dark: 16:53 - 07:27. Nautical Dark: 17:36 - 06:45. Astro Dark: 18:16 - 06:04

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
99
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

47
45
53
78
100
100
100
100
99
97
99
100
100
100
100
100
99
76
80
64
79
44
50
64

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
55
44
55
45
42
35
29
69
100
100
100
93
100
100
100

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
8
0
0
0
0
45
55
50
45
40
40
45
100
100
72

ISS Passover

Visibility (miles)

9
9
9
3
2
2
2
0
4
9
9
9
9
9
9
9
0
0
0
0
0
0
0
0

Fog (%)

64
5
90
90
8
9
7
0
0
9
2
1
0
0
22
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

38
70
95
95
95
95
95
95
95
95
89
95
95
95
95
95
95
95
95
90
74
71
66
57

Precipitation Amount (mm)

0
0.3
0.6
0.9
1.3
2.1
3.2
2.2
0.9
0.8
0.4
0.8
1.3
1.2
0.9
1
1.1
0.9
0.8
0.5
0.3
0.3
0.3
0

Wind Speed/Direction (mph)

3
3
3
6
9
13
17
17
17
18
19
18
14
12
15
23
27
27
27
26
25
24
22
22

Chance of Frost

Temperature (°C)

5
5
5
5
5
4
4
4
5
5
5
5
4
3
2
2
1
1
2
2
2
2
2
3

Feels Like (°C)

2
3
2
2
0
-1
-2
-2
0
-1
-2
-1
0
0
-3
-6
-9
-9
-8
-8
-8
-7
-7
-6

Dew Point (°C)

4
4
5
4
4
4
4
4
5
3
3
3
3
2
1
1
1
1
1
1
1
2
2
2

Relative Humidity (%)

94
94
96
94
94
98
96
98
96
88
88
88
93
94
94
94
96
96
96
96
94
96
96
96

Pressure (mb)

1003
1002
1000
999
996
994
990
987
984
981
978
976
974
975
977
979
982
984
986
988
990
991
992
993

Ozone (du)

320
319
321
320
319
321
324
334
341
351
361
363
362
362
358
360
361
359
371
362
365
383
380
381

Friday 9

Waning Gibbous 54%

00:05

10:53

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
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 08:05, Set: 16:16, Transit: 12:11. Moon - Rise: 00:05, Set: 10:53. Civil Dark: 16:55 - 07:26. Nautical Dark: 17:37 - 06:44. Astro Dark: 18:17 - 06:04

Total Clouds (% Sky Obscured)

100
100
100
100
100
98
96
89
85
82
90
91
72
93
65
56
71
90
61
54
63
65
54
57

Low Clouds (% Sky Obscured)

58
48
46
45
44
45
41
44
46
50
57
55
53
52
46
54
71
82
61
54
63
65
54
57

Medium Clouds (% Sky Obscured)

100
100
100
100
100
98
96
80
77
82
88
89
72
91
65
56
58
70
55
54
55
54
3
6

High Clouds (% Sky Obscured)

85
91
97
100
68
65
64
68
67
37
32
37
56
80
50
35
18
2
1
1
2
2
0
0

ISS Passover

Visibility (miles)

0
5
2
7
6
6
9
6
4
5
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 (%)

50
46
43
42
43
34
29
22
21
19
17
12
5
3
3
1
2
2
5
4
5
2
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)

23
22
22
20
20
20
19
19
18
17
16
14
15
16
15
15
15
15
14
13
13
14
14
15

Chance of Frost

Temperature (°C)

3
4
4
4
4
3
3
2
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
2

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
94
91
93
94
93
91
89
88
84
83
83
80
83
81
81
83
83
83
83
83
83
83

Pressure (mb)

994
995
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015

Ozone (du)

385
391
395
394
397
400
402
402
403
392
386
385
382
379
375
377
379
385
381
375
371
371
371
371

Saturday 10

Third Quarter 44%

01:18

11:06

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

Sun - Rise: 08:04, Set: 16:17, Transit: 12:11. Moon - Rise: 01:18, Set: 11:06. Civil Dark: 16:56 - 07:26. Nautical Dark: 17:38 - 06:44. Astro Dark: 18:18 - 06:04

Total Clouds (% Sky Obscured)

90
87
68
37
25
38
26
22
29
46
61
71
62
94
100
91
89
97
97
98
99
100
100
100

Low Clouds (% Sky Obscured)

90
87
68
37
21
35
22
3
9
19
2
0
1
0
0
5
0
18
21
21
20
18
33
50

Medium Clouds (% Sky Obscured)

6
2
0
0
0
0
0
0
0
0
0
3
9
92
24
31
35
97
97
77
99
92
100
100

High Clouds (% Sky Obscured)

0
0
0
2
2
3
2
21
29
43
61
62
56
91
72
23
31
15
27
54
77
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
26

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
16
14
12
11
11
9
8
8
6
4
4
4
4
2
1
3
4
4
5
6
6
7
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
76
77
82
77
77
77
77
74
83
87
89
91
92
91
89
91
92
89
91
91
91
89
89

Pressure (mb)

1016
1016
1016
1017
1018
1018
1019
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020
1019
1019
1019
1018
1018

Ozone (du)

371
370
369
365
361
354
350
347
344
340
336
329
323
318
313
311
313
317
318
311
305
301
299
300

Sunday 11

Waning Crescent 35%

02:31

11:06

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
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 08:04, Set: 16:19, Transit: 12:12. Moon - Rise: 02:31, Set: 11:06. Civil Dark: 16:57 - 07:25. Nautical Dark: 17:39 - 06:43. Astro Dark: 18:20 - 06:03

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
97
79
75

Low Clouds (% Sky Obscured)

73
84
91
92
95
98
100
100
100
100
96
92
88
79
69
59
55
59
60
60
59
56
44
47

Medium Clouds (% Sky Obscured)

100
100
99
100
100
100
100
100
100
100
88
74
22
67
85
85
65
98
94
100
81
72
42
37

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
96
72
30
0
0
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
7
4
9
7
1
9
0
1
9
2
8
9
7
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

40
48
48
42
33
30
49
95
95
95
95
95
43
54
57
33
18
14
26
30
24
22
18
12

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.8
0.8
0.7
0.7
0.8
0
0.2
0.2
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-1
-1
-2
-2
-2
-2
-2
-2
-1
-1
-0
1
2
3
3
4
5
5
5
4
5
5
4
5

Dew Point (°C)

1
1
1
0
0
1
2
3
4
5
6
7
7
8
8
8
9
9
8
8
7
8
7
7

Relative Humidity (%)

82
79
76
73
73
75
80
88
91
94
94
98
96
96
98
95
98
96
95
91
88
91
91
87

Pressure (mb)

1017
1016
1014
1013
1012
1011
1010
1009
1008
1007
1005
1004
1004
1004
1003
1003
1002
1002
1002
1002
1002
1002
1002
1002

Ozone (du)

302
304
305
306
306
307
307
308
308
310
309
310
311
311
311
313
313
311
310
316
324
331
332
324

Monday 12

Waning Crescent 26%

03:44

11:20

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
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 08:03, Set: 16:20, Transit: 12:12. Moon - Rise: 03:44, Set: 11:20. Civil Dark: 16:59 - 07:25. Nautical Dark: 17:41 - 06:43. Astro Dark: 18:21 - 06:03

Total Clouds (% Sky Obscured)

86
91
96
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)

62
61
60
50
53
58
60
59
60
59
63
67
71
77
83
89
85
82
78
81
83
86
90
95

Medium Clouds (% Sky Obscured)

31
31
26
24
70
53
81
53
25
28
46
68
91
94
98
100
100
100
100
95
90
84
75
66

High Clouds (% Sky Obscured)

13
43
72
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
81
62
48
56
73

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
6
5
6
8
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
Very Light Rain
None
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
Very Light Rain

Precipitation Probability (%)

4
6
13
2
8
6
0
2
2
12
21
63
33
43
47
51
57
61
64
64
60
57
60
64

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

15
15
14
14
13
12
12
11
11
11
12
14
13
14
14
15
15
15
13
12
12
12
10
10

Chance of Frost

Temperature (°C)

10
11
11
11
11
10
10
9
9
9
9
9
9
9
10
10
10
10
10
10
10
10
11
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
83
84
83
87
90
87
88
91
91
95
93
93
91
91
90
90
88
90
88
88
88
88
87

Pressure (mb)

1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1002
1002
1002
1001
1001
1001
1001
1001
1001
1001
1001
1002

Ozone (du)

317
315
316
316
313
311
313
315
316
313
312
314
315
316
318
320
322
324
327
329
334
338
342
343

Tuesday 13

Waning Crescent 18%

04:56

11:40

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
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 08:02, Set: 16:22, Transit: 12:12. Moon - Rise: 04:56, Set: 11:40. Civil Dark: 17:00 - 07:24. Nautical Dark: 17:42 - 06:42. Astro Dark: 18:22 - 06:02

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99
92
84
80
77
73
68
66
63

Low Clouds (% Sky Obscured)

99
97
94
90
83
77
68
66
65
64
66
67
74
78
84
80
78
77
75
73
71
68
66
63

Medium Clouds (% Sky Obscured)

57
45
40
37
40
48
50
63
82
100
100
100
100
99
96
93
81
68
53
40
39
41
32
23

High Clouds (% Sky Obscured)

79
89
97
99
100
100
100
100
100
100
100
100
100
67
33
0
0
3
3
6
4
0
0
0

ISS Passover

Visibility (miles)

8
7
8
8
8
8
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

58
62
62
60
68
76
83
76
70
68
61
49
32
20
9
1
3
4
4
2
1
0
1
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
85
87
87
88
91
93
93
93
94
93
91
90
90
90
90
91
91
93
91
90
88
85

Pressure (mb)

1002
1002
1002
1002
1002
1003
1003
1004
1004
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1006
1006
1007
1007

Ozone (du)

343
343
344
344
345
346
346
347
346
345
345
341
337
333
335
337
340
351
363
375
369
363
357
350

Wednesday 14

Waning Crescent 11%

06:03

12:06

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: 08:01, Set: 16:23, Transit: 12:13. Moon - Rise: 06:03, Set: 12:06. Civil Dark: 17:01 - 07:23. Nautical Dark: 17:43 - 06:41. Astro Dark: 18:23 - 06:02

Total Clouds (% Sky Obscured)

61
55
49
44
53
62
70
81
90
100
99
98
96
98
99
100
100
100
100

Low Clouds (% Sky Obscured)

61
55
48
42
47
52
47
46
43
46
55
63
65
78
84
87
90
92
94

Medium Clouds (% Sky Obscured)

14
10
5
2
5
7
8
36
64
92
77
63
51
52
54
54
64
76
80

High Clouds (% Sky Obscured)

0
9
19
28
17
22
22
45
66
85
78
72
50
57
75
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

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
0
0
0
1
0
0
1
0
1
3
6
21
31
37
42
44
39

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

6
6
6
6
6
6
6
5
5
5
5
5
5
6
6
6
6
6
6

Relative Humidity (%)

84
81
81
81
81
85
88
93
91
90
88
87
88
88
88
88
88
88
87

Pressure (mb)

1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1007
1007
1006
1006
1005
1005

Ozone (du)

344
337
336
336
335
338
341
344
347
349
351
352
353
355
351
347
343
343
342

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

Generated: 08/01/26 11:10:33. Forecast: 08/01/26 to 14/01/26. Timezone: UTC+0.00