Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 29

Waxing Gibbous 66%

13:10

00:04

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
18 Bad
19 OK
20 OK
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:48, Set: 15:48, Transit: 11:48. Moon - Rise: 13:10, Set: 00:04. Civil Dark: 16:29 - 07:08. Nautical Dark: 17:13 - 06:24. Astro Dark: 17:54 - 05:42

Total Clouds (% Sky Obscured)

72
78
83
100
99
100
100
100
100
100
100
100
100
100
100
99
92
68
56
36
34
49
100
100

Low Clouds (% Sky Obscured)

72
78
83
89
81
93
87
100
100
80
99
88
87
94
100
74
82
43
36
27
30
36
61
96

Medium Clouds (% Sky Obscured)

72
78
83
32
99
100
100
100
100
100
100
100
55
100
49
98
71
24
56
10
3
3
47
46

High Clouds (% Sky Obscured)

64
68
83
95
85
100
100
100
100
100
100
100
100
100
70
65
60
6
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
2
3
2
3
4
2
7
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
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
Light Rain

Precipitation Probability (%)

18
5
29
92
95
95
95
95
95
95
95
95
67
86
90
71
24
9
3
2
4
12
39
87

Precipitation Amount (mm)

0
0
0
0.4
0.7
1.1
1.7
2.5
2
1.7
0.8
0.6
0.3
0.6
0.7
0.4
0
0
0
0
0
0
0
0.7

Wind Speed/Direction (mph)

12
10
8
14
18
17
13
8
7
4
6
7
8
8
9
8
8
8
8
8
8
10
10
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
3
4
3
4
4
6
6
4
6
4
4
4
4
4
4
3
2
3
1
2
0
1
-0

Dew Point (°C)

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

Relative Humidity (%)

81
87
88
85
85
90
90
96
96
93
94
93
90
87
87
85
85
88
89
91
91
89
89
91

Pressure (mb)

1006
1005
1004
1002
1001
1001
1000
1000
1001
1000
1000
1000
1000
1000
1000
1000
1001
1001
1002
1002
1003
1003
1004
1005

Ozone (du)

293
294
293
293
294
294
296
298
303
305
310
315
321
328
331
332
334
336
339
343
345
343
341
343

Sunday 30

Waxing Gibbous 77%

13:20

01:28

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

Sun - Rise: 07:50, Set: 15:47, Transit: 11:49. Moon - Rise: 13:20, Set: 01:28. Civil Dark: 16:28 - 07:09. Nautical Dark: 17:12 - 06:25. Astro Dark: 17:54 - 05:43

Total Clouds (% Sky Obscured)

91
88
48
42
27
1
12
20
62
59
87
74
70
53
23
2
23
2
12
73
82
78
86
93

Low Clouds (% Sky Obscured)

53
34
30
36
4
0
0
0
62
59
68
56
51
42
22
0
0
0
10
57
60
60
55
39

Medium Clouds (% Sky Obscured)

27
31
22
21
16
0
0
0
18
43
42
31
23
25
8
0
19
0
0
35
64
44
42
68

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
8
3
5
7
50
57

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

Very Light Rain
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 (%)

56
3
0
0
0
0
0
0
2
5
11
5
2
1
1
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.3
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
15
13
12
11
11
10
11
11
10
12
11
11
10
8
6
6
6
6
7
8
9
10
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
80
80
85
86
84
83
81
79
83
88
91
86
85
83
85
89
89
89
91
91
91
91
91

Pressure (mb)

1006
1007
1007
1008
1009
1010
1010
1011
1012
1013
1013
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1014
1013

Ozone (du)

344
342
334
334
336
337
333
332
336
339
338
336
332
329
323
319
315
311
309
306
302
300
298
293

Monday 1

Waxing Gibbous 86%

13:32

02:55

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:51, Set: 15:47, Transit: 11:49. Moon - Rise: 13:32, Set: 02:55. Civil Dark: 16:28 - 07:10. Nautical Dark: 17:12 - 06:26. Astro Dark: 17:53 - 05:45

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
100
100
100

Low Clouds (% Sky Obscured)

53
57
85
94
85
89
88
85
85
89
79
81
95
80
90
84
89
92
93
93
94
92
90
88

Medium Clouds (% Sky Obscured)

84
100
100
100
100
100
86
100
100
100
100
100
99
97
100
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

100
100
100
100
100
74
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
5
5
4
5
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

17
27
28
50
63
81
89
95
95
95
95
73
47
28
7
7
32
11
11
11
11
22
25
29

Precipitation Amount (mm)

0
0
0
0
0.2
0.5
0.5
1
1.1
1.1
0.8
0.3
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

13
13
15
17
18
19
21
22
23
25
25
26
26
25
24
23
22
23
23
24
23
24
24
24

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
89
86
86
85
85
87
88
88
88
88
88
87
87
87
88
88
87
87
87
85
85
84
82

Pressure (mb)

1013
1012
1011
1010
1008
1007
1006
1005
1004
1003
1003
1002
1001
1001
1000
1000
1000
999
999
999
999
999
998
998

Ozone (du)

290
290
289
286
282
280
279
276
272
269
269
268
267
265
263
262
262
263
264
264
265
265
265
266

Tuesday 2

Waxing Gibbous 94%

13:47

04:27

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

Sun - Rise: 07:52, Set: 15:46, Transit: 11:49. Moon - Rise: 13:47, Set: 04:27. Civil Dark: 16:27 - 07:11. Nautical Dark: 17:11 - 06:27. Astro Dark: 17:53 - 05:46

Total Clouds (% Sky Obscured)

100
100
100
96
93
88
79
73
64
55
53
33
52
23
31
27
76
73
83
91
100
95
90
76

Low Clouds (% Sky Obscured)

89
89
90
82
76
69
52
36
15
16
17
4
21
23
31
27
46
47
46
45
44
49
56
61

Medium Clouds (% Sky Obscured)

100
100
100
88
30
23
16
16
12
8
4
0
0
0
3
3
50
44
57
68
80
74
68
18

High Clouds (% Sky Obscured)

100
100
100
70
37
10
15
14
25
25
9
27
22
2
0
0
1
3
61
68
100
78
46
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
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

39
52
56
49
43
20
29
24
14
2
1
1
0
0
0
0
0
0
0
1
0
2
2
0

Precipitation Amount (mm)

0
0
0.2
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)

24
23
22
21
19
19
18
17
16
14
13
13
14
13
11
11
9
9
8
9
8
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
84
81
75
79
81
80
77
77
79
78
79
74
72
70
74
81
84
87
90
91
93
93
93

Pressure (mb)

997
997
997
997
997
997
997
997
998
1000
1002
1003
1004
1005
1006
1007
1007
1008
1009
1010
1010
1011
1011
1012

Ozone (du)

264
262
260
260
263
264
264
266
269
272
274
274
277
277
277
275
274
275
278
281
282
282
286
288

Wednesday 3

Waxing Gibbous 98%

14:08

06:04

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

Sun - Rise: 07:54, Set: 15:46, Transit: 11:50. Moon - Rise: 14:08, Set: 06:04. Civil Dark: 16:27 - 07:13. Nautical Dark: 17:11 - 06:29. Astro Dark: 17:52 - 05:47

Total Clouds (% Sky Obscured)

56
56
56
59
63
65
67
70
65
60
65
70
65
59
49
47
38
27
35
43
51
44
37
34

Low Clouds (% Sky Obscured)

56
52
43
46
54
59
65
68
65
60
57
48
49
49
49
42
34
27
35
43
51
44
35
27

Medium Clouds (% Sky Obscured)

15
13
11
17
26
35
40
50
50
55
60
60
46
31
15
9
5
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

9
12
18
20
19
20
32
50
65
44
25
2
2
1
0
0
0
0
0
1
4
6
12
25

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
4
4
3
3
3
3
4
4
4
6
7
7
8
7
7
7
7
7
4
3
3
3
3

Dew Point (°C)

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

Relative Humidity (%)

93
93
91
89
88
89
89
88
89
88
83
79
77
81
82
87
87
88
89
89
89
89
91
91

Pressure (mb)

1012
1012
1012
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1012

Ozone (du)

288
286
287
288
288
289
292
297
306
313
321
317
311
307
302
298
298
298
299
298
298
297
298
298

Thursday 4

Full Moon 100%

14:41

07:42

00 Bad
01 Bad
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 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:55, Set: 15:45, Transit: 11:50. Moon - Rise: 14:41, Set: 07:42. Civil Dark: 16:26 - 07:14. Nautical Dark: 17:10 - 06:30. Astro Dark: 17:52 - 05:48

Total Clouds (% Sky Obscured)

40
43
42
59
79
100
97
94
91
92
94
94
94
95
95
96
93
85
85
85
82
78
73
69

Low Clouds (% Sky Obscured)

27
27
27
49
68
89
89
86
79
82
85
87
88
89
90
84
81
78
78
80
80
76
68
64

Medium Clouds (% Sky Obscured)

0
0
0
0
1
1
23
45
63
65
68
70
70
70
70
75
75
70
70
50
45
35
35
35

High Clouds (% Sky Obscured)

25
25
15
15
15
15
15
15
15
15
20
20
20
20
25
25
25
30
30
50
70
70
70
69

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

2
1
0
1
1
0
0
0
0
2
9
14
38
50
56
61
66
71
72
76
81
88
94
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.2
0.3
0.3
0.4
0.3
0.4
0.4
0.6
0.7
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
93
96
98
94
94
93
93
91
93
90
85
82
85
88
91
91
91
91
91
90
90
91
90

Pressure (mb)

1012
1011
1011
1010
1010
1009
1008
1008
1008
1008
1007
1006
1006
1005
1005
1004
1004
1004
1003
1003
1003
1003
1003
1002

Ozone (du)

299
299
299
299
298
298
297
297
296
295
298
301
304
314
324
334
337
341
345
345
345
345
359
374

Friday 5

Waning Gibbous 100%

15:32

09:11

Sun - Rise: 07:56, Set: 15:45, Transit: 11:50. Moon - Rise: 15:32, Set: 09:11. Civil Dark: 16:26 - 07:15. Nautical Dark: 17:10 - 06:31. Astro Dark: 17:52 - 05:49

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 Boston, Lincolnshire, United Kingdom (52.98,-0.02)

Generated: 29/11/25 00:36:28. Forecast: 29/11/25 to 05/12/25. Timezone: UTC+0.00