Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 21

Waxing Crescent 18%

08:28

22:59

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
11 Bad
12 Bad
13 Bad
14 OK
15 OK

Sun - Rise: 07:02, Set: 17:30, Transit: 12:17. Moon - Rise: 08:28, Set: 22:59. Civil Dark: 18:04 - 06:28. Nautical Dark: 18:43 - 05:49. Astro Dark: 19:21 - 05:11

Total Clouds (% Sky Obscured)

100
100
100
100
91
95
100
100
100
100
100
100
100
100
100
100
100
100
100
100
54
51
30
38

Low Clouds (% Sky Obscured)

93
82
69
65
73
72
85
72
80
94
100
83
86
84
100
92
92
84
85
65
54
51
30
38

Medium Clouds (% Sky Obscured)

99
100
100
100
82
22
19
35
40
88
60
100
100
100
100
100
53
100
87
80
3
0
0
0

High Clouds (% Sky Obscured)

100
100
100
65
68
87
100
100
100
100
100
100
100
100
95
100
100
100
100
100
54
51
30
20

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
8
9
5
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

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

Precipitation Probability (%)

65
55
48
5
0
0
0
1
9
27
51
84
88
81
77
72
57
33
7
16
17
7
5
5

Precipitation Amount (mm)

0.3
0
0
0
0
0
0
0
0
0
0
0.5
0.6
0.4
0.5
0.4
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

12
12
12
12
12
12
11
11
11
11
11
11
11
11
11
11
11
11
11
12
13
13
13
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
92
90
92
90
88
88
87
90
90
91
95
95
95
93
96
95
90
88
86
81
77
80
80

Pressure (mb)

1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1017
1017
1016
1016
1016
1016
1017
1017
1017
1016
1016
1016
1016

Ozone (du)

308
310
314
320
322
324
326
328
328
330
332
334
340
346
354
355
358
363
368
371
372
371
370
370

Sunday 22

Waxing Crescent 30%

08:50

00:27

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

Sun - Rise: 07:00, Set: 17:32, Transit: 12:17. Moon - Rise: 08:50, Set: 00:27. Civil Dark: 18:06 - 06:26. Nautical Dark: 18:44 - 05:47. Astro Dark: 19:23 - 05:09

Total Clouds (% Sky Obscured)

27
47
100
100
100
100
100
100
93
71
97
100
100
100
100
98
99
97
97
97
95
100
98
100

Low Clouds (% Sky Obscured)

22
8
30
42
56
54
49
47
59
55
69
59
53
56
56
61
54
47
48
57
80
100
90
93

Medium Clouds (% Sky Obscured)

0
47
100
100
34
35
40
40
0
0
0
0
6
43
65
98
99
96
88
48
76
93
81
64

High Clouds (% Sky Obscured)

10
47
100
45
42
53
100
100
87
64
92
100
100
100
62
72
61
64
27
42
23
32
37
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
6

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
Very Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
8
23
33
55
57

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
0.2
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
11
10
9
9
9
9
9
9
8
8
8
8
8
8
8
8
9
9
10
11
11
11
11

Feels Like (°C)

10
8
6
6
5
6
4
3
4
3
3
3
3
3
3
3
3
4
5
6
6
6
7
7

Dew Point (°C)

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

Relative Humidity (%)

80
81
84
85
87
88
87
78
78
81
88
84
82
85
90
88
85
85
84
83
84
83
90
93

Pressure (mb)

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

Ozone (du)

368
372
397
415
395
379
369
368
369
372
371
370
366
364
364
362
359
359
358
355
352
350
349
347

Monday 23

Waxing Crescent 41%

09:20

01:56

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
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 06:58, Set: 17:34, Transit: 12:17. Moon - Rise: 09:20, Set: 01:56. Civil Dark: 18:07 - 06:24. Nautical Dark: 18:46 - 05:45. Astro Dark: 19:25 - 05:07

Total Clouds (% Sky Obscured)

100
100
94
90
89
91
92
94
85
80
88
85
93
71
81
89
88
89
82
55
54
58
57
64

Low Clouds (% Sky Obscured)

94
100
94
89
86
87
92
93
83
78
85
80
90
71
75
82
81
76
57
33
31
30
27
30

Medium Clouds (% Sky Obscured)

63
47
3
1
0
2
0
0
0
0
0
0
0
3
4
79
68
65
79
55
54
37
8
9

High Clouds (% Sky Obscured)

100
70
53
57
74
54
45
37
29
3
30
30
35
12
36
27
27
46
19
23
21
19
15
25

ISS Passover

Visibility (miles)

8
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 (%)

28
9
17
2
1
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)

16
16
16
15
15
13
11
11
11
12
13
15
15
13
12
12
12
13
13
13
14
14
13
13

Chance of Frost

Temperature (°C)

12
12
12
12
12
12
11
11
11
11
11
11
11
10
10
9
9
10
10
12
13
13
13
13

Feels Like (°C)

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

Dew Point (°C)

11
11
11
10
10
10
10
10
10
10
10
9
8
8
9
8
8
8
8
8
9
9
9
9

Relative Humidity (%)

95
92
92
89
87
87
92
95
95
93
91
87
84
85
93
95
93
88
85
79
76
75
76
76

Pressure (mb)

1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1015
1015
1015
1015
1014
1014
1014
1014
1014
1014
1013
1013
1013
1013

Ozone (du)

346
344
344
345
344
341
340
342
345
343
344
345
343
345
345
345
346
348
350
349
350
352
353
353

Tuesday 24

First Quarter 53%

10:04

03:18

16 Bad
17 Bad
18 Bad
19 Bad
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

Sun - Rise: 06:55, Set: 17:35, Transit: 12:16. Moon - Rise: 10:04, Set: 03:18. Civil Dark: 18:09 - 06:22. Nautical Dark: 18:48 - 05:43. Astro Dark: 19:26 - 05:05

Total Clouds (% Sky Obscured)

70
74
61
53
42
52
67
62
62
55
49
39
44
49
48
51
68
82
92
98
97
94
100
93

Low Clouds (% Sky Obscured)

37
48
45
37
26
43
59
62
62
55
49
39
38
31
31
30
29
34
33
34
31
29
25
20

Medium Clouds (% Sky Obscured)

28
3
2
29
0
0
0
0
0
0
0
0
0
0
0
0
0
11
22
37
39
29
28
35

High Clouds (% Sky Obscured)

30
43
32
17
5
5
10
1
0
0
0
0
5
15
21
28
38
50
85
93
95
94
100
88

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
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
8
7
7
7
7
7
7
8
9
8
8
8
7
6
8
9
10
11
11
12
13
14
13

Dew Point (°C)

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

Relative Humidity (%)

79
81
83
85
88
91
91
93
95
95
95
95
93
93
93
93
91
87
79
72
66
61
61
68

Pressure (mb)

1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

354
354
355
357
360
360
360
361
360
358
360
361
361
363
366
368
367
364
365
364
361
359
359
360

Wednesday 25

Waxing Gibbous 65%

11:06

04:27

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
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 06:53, Set: 17:37, Transit: 12:16. Moon - Rise: 11:06, Set: 04:27. Civil Dark: 18:11 - 06:20. Nautical Dark: 18:49 - 05:41. Astro Dark: 19:28 - 05:03

Total Clouds (% Sky Obscured)

81
84
84
80
98
90
87
84
80
75
71
79
83
87
66
68
72
83
93
100
100
100
100
100

Low Clouds (% Sky Obscured)

19
18
29
39
58
64
67
70
72
73
71
79
82
84
66
68
72
82
80
79
71
64
60
63

Medium Clouds (% Sky Obscured)

42
49
55
55
59
42
23
1
0
0
0
5
10
14
37
10
0
4
6
13
20
31
40
44

High Clouds (% Sky Obscured)

71
63
59
55
66
61
59
63
43
21
0
0
0
0
0
1
1
32
65
98
99
99
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 (%)

1
0
1
3
0
6
8
5
1
0
0
3
2
0
14
11
2
1
0
0
6
4
5
6

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
10
10
10
9
9
9
9
9
8
8
8
9
8
8
9
9
9
9
9
9
9
9
8

Relative Humidity (%)

74
82
87
90
90
90
91
93
93
91
93
96
98
96
96
95
91
91
88
86
83
80
79
77

Pressure (mb)

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

Ozone (du)

359
359
361
363
366
370
374
380
388
394
400
409
418
419
400
394
389
383
379
374
370
366
363
359

Thursday 26

Waxing Gibbous 76%

12:25

05:16

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
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 06:51, Set: 17:39, Transit: 12:16. Moon - Rise: 12:25, Set: 05:16. Civil Dark: 18:12 - 06:18. Nautical Dark: 18:51 - 05:39. Astro Dark: 19:30 - 05:01

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99
94
97
91

Low Clouds (% Sky Obscured)

65
67
66
65
63
73
83
94
91
88
85
87
90
93
95
96
98
97
95
93
93
92
92
91

Medium Clouds (% Sky Obscured)

47
51
62
72
83
71
58
46
45
46
58
65
70
66
63
62
64
49
28
15
19
24
24
17

High Clouds (% Sky Obscured)

99
99
99
99
99
100
100
100
100
100
100
90
81
74
80
78
71
72
72
69
70
72
66
65

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

Precipitation Probability (%)

7
4
9
8
4
2
3
0
2
5
7
29
39
48
64
75
85
93
95
95
94
91
85
87

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.5
0.6
0.8
0.7
0.7
0.6
0.5
0.5

Wind Speed/Direction (mph)

13
13
13
13
14
14
14
15
15
14
13
12
11
10
10
9
9
9
10
11
12
12
12
12

Chance of Frost

Temperature (°C)

12
11
11
11
10
10
10
10
11
10
10
10
10
10
10
10
10
10
10
10
10
10
10
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
84
87
87
88
88
85
84
81
83
85
87
90
93
95
91
90
87
84
81
77
73
68
65

Pressure (mb)

1019
1019
1018
1018
1018
1018
1018
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015

Ozone (du)

358
356
355
353
351
349
348
346
345
343
340
337
336
336
335
335
335
334
335
336
337
338
340
341

Friday 27

Waxing Gibbous 85%

13:51

05:50

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

Sun - Rise: 06:49, Set: 17:41, Transit: 12:16. Moon - Rise: 13:51, Set: 05:50. Civil Dark: 18:14 - 06:16. Nautical Dark: 18:53 - 05:37. Astro Dark: 19:32 - 04:58

Total Clouds (% Sky Obscured)

77
74
68
62
60
53
50
51
44
31
23
15
6
6
6
4
0
12
26
45

Low Clouds (% Sky Obscured)

77
74
68
61
53
53
50
51
44
31
23
15
6
6
6
4
0
3
6
10

Medium Clouds (% Sky Obscured)

11
9
8
3
5
4
2
0
0
0
0
0
0
0
0
0
0
12
26
39

High Clouds (% Sky Obscured)

56
40
25
16
11
7
4
0
0
0
0
0
0
0
0
0
0
11
19
21

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

85
79
72
56
22
10
4
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
73
78
82
87
90
90
89
88
88
88
88
89
88
89
85
82
80
74
69

Pressure (mb)

1015
1015
1015
1016
1017
1018
1019
1020
1020
1021
1022
1022
1023
1024
1025
1025
1025
1026
1026
1026

Ozone (du)

346
352
357
366
375
383
387
391
394
394
393
392
390
389
387
387
386
386
383
381

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

Generated: 21/02/26 16:35:42. Forecast: 21/02/26 to 27/02/26. Timezone: UTC+0.00