Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 15

Waning Crescent 41%

23:21

16:59

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
00 Bad
01 Bad

Sun - Rise: 06:35, Set: 19:14, Transit: 12:55. Moon - Rise: 23:21, Set: 16:59. Civil Dark: 19:49 - 06:00. Nautical Dark: 20:31 - 05:19. Astro Dark: 21:15 - 04:34

Total Clouds (% Sky Obscured)

59
63
43
70
68
62
74
58
86
99
100
91
99
79
95
100
96
92
100
87
88
90
90
62

Low Clouds (% Sky Obscured)

59
58
43
55
63
61
72
54
47
52
46
41
37
28
70
44
73
73
82
76
82
81
79
46

Medium Clouds (% Sky Obscured)

2
3
0
0
0
0
0
1
30
35
40
41
51
30
73
100
96
33
43
33
36
34
13
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
3
46
31
6
20
3
0
3
42
60
51
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
7
9
9
5
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
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

15
5
15
8
4
2
3
5
8
34
29
29
29
42
42
39
36
17
20
28
6
4
5
1

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)

17
18
20
21
23
24
24
24
25
27
27
25
26
25
26
26
24
24
23
23
24
23
23
22

Chance of Frost

Temperature (°C)

15
14
14
14
14
14
14
14
15
16
17
16
17
17
17
16
15
15
14
14
14
14
14
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
74
79
75
73
73
70
70
69
61
62
62
62
61
62
65
72
76
78
78
76
75
71
69

Pressure (mb)

997
997
997
997
996
997
998
998
999
999
999
999
999
999
999
1000
1000
1001
1002
1002
1003
1005
1006
1006

Ozone (du)

285
287
292
292
296
297
297
298
300
302
303
303
303
304
301
300
302
306
305
303
302
305
304
302

Tuesday 16

Waning Crescent 30%

00:44

17:36

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
00 Bad
01 Bad

Sun - Rise: 06:37, Set: 19:12, Transit: 12:54. Moon - Rise: 00:44, Set: 17:36. Civil Dark: 19:46 - 06:02. Nautical Dark: 20:28 - 05:20. Astro Dark: 21:12 - 04:36

Total Clouds (% Sky Obscured)

60
54
54
54
50
47
47
58
73
67
90
75
92
79
88
83
100
98
100
100
100
100
100
98

Low Clouds (% Sky Obscured)

43
34
29
39
33
29
33
44
51
39
57
40
19
5
15
14
6
0
0
0
17
55
62
70

Medium Clouds (% Sky Obscured)

0
0
54
5
5
6
0
2
37
44
53
32
24
2
30
54
29
37
66
80
75
75
76
72

High Clouds (% Sky Obscured)

0
0
0
0
2
0
0
0
0
0
0
3
43
32
50
52
100
86
100
100
100
100
100
82

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
Very Light Rain
Light Rain

Precipitation Probability (%)

2
6
8
5
2
12
8
11
3
4
6
3
1
0
0
0
0
0
0
4
27
54
64
78

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
0.4

Wind Speed/Direction (mph)

21
21
22
21
21
21
22
23
23
22
22
21
18
16
18
17
15
13
10
9
10
11
10
10

Chance of Frost

Temperature (°C)

14
13
13
13
12
13
13
13
14
16
16
17
17
17
18
18
16
15
14
13
13
13
12
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
66
64
66
69
70
75
74
74
67
62
59
59
56
50
51
57
62
68
71
71
71
75
79

Pressure (mb)

1007
1007
1008
1008
1009
1009
1010
1011
1012
1012
1013
1013
1014
1014
1014
1014
1015
1015
1015
1016
1016
1016
1016
1016

Ozone (du)

302
312
308
300
300
301
301
299
298
296
295
294
294
294
288
286
284
283
281
280
278
274
271
269

Wednesday 17

Waning Crescent 20%

No Rise

18:00

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
00 Bad
01 Bad

Sun - Rise: 06:38, Set: 19:09, Transit: 12:54. Moon - Rise: No Rise, Set: 18:00. Civil Dark: 19:44 - 06:04. Nautical Dark: 20:25 - 05:22. Astro Dark: 21:09 - 04:39

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
96
65
89
91
96
84
80
79
78
73
70
74
80
86
87

Low Clouds (% Sky Obscured)

75
72
74
80
81
75
64
77
63
66
63
63
71
73
74
68
64
59
50
44
43
42
42
48

Medium Clouds (% Sky Obscured)

70
98
99
100
99
77
70
75
75
91
65
77
90
94
71
70
77
64
29
36
24
1
3
4

High Clouds (% Sky Obscured)

100
100
93
93
100
100
100
100
100
90
11
63
69
73
66
63
70
69
60
60
28
37
47
52

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
4
3
6
9
4
6
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
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
Very Light Rain
Light Rain
Moderate Rain
Light Rain
Very Light Rain
Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

66
66
64
27
16
15
18
41
51
5
45
14
71
94
95
95
71
86
62
21
34
6
15
0

Precipitation Amount (mm)

0.2
0.3
0.3
0
0
0
0
0
0
0
0
0
0.2
0.6
3.3
1
0.3
0.8
0.3
0
0
0
0
0

Wind Speed/Direction (mph)

9
10
10
10
11
11
13
14
16
15
16
19
19
18
18
17
16
16
15
15
14
14
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
9
9
10
10
10
10
12
13
14
15
16
16
16
17
17
17
16
16
16
15
15
15
14

Relative Humidity (%)

84
86
84
86
86
83
82
83
89
86
89
89
86
90
92
96
95
95
93
92
89
90
89
89

Pressure (mb)

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

Ozone (du)

267
265
264
264
264
265
266
267
268
270
269
269
267
265
263
261
263
262
262
261
261
262
261
262

Thursday 18

Waning Crescent 12%

02:10

18:17

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
00 Bad
01 Bad

Sun - Rise: 06:40, Set: 19:07, Transit: 12:53. Moon - Rise: 02:10, Set: 18:17. Civil Dark: 19:41 - 06:05. Nautical Dark: 20:23 - 05:24. Astro Dark: 21:06 - 04:41

Total Clouds (% Sky Obscured)

89
89
92
91
89
92
96
99
98
97
96
97
99
100
99
99
98
98
97
97
98
71
71
100

Low Clouds (% Sky Obscured)

51
55
52
52
47
47
51
51
52
52
52
36
23
13
8
4
0
19
39
58
65
71
71
80

Medium Clouds (% Sky Obscured)

8
10
9
4
3
3
3
3
7
11
16
23
34
40
40
49
94
96
53
49
56
56
54
50

High Clouds (% Sky Obscured)

56
58
59
61
62
77
86
95
92
89
87
93
97
100
91
79
72
60
51
42
56
45
64
38

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
2
5
3
2
1
4
13
11
0
1
0
1
0
0
0
0
8
12
12
20
19
19
20

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)

14
15
15
14
14
14
14
14
15
15
16
17
17
16
15
13
12
10
10
9
10
10
11
11

Chance of Frost

Temperature (°C)

16
16
16
16
16
15
16
16
17
17
19
20
21
21
21
21
20
19
18
17
17
17
17
17

Feels Like (°C)

13
13
13
13
13
13
14
15
15
15
16
17
18
18
18
18
16
15
14
14
14
13
14
14

Dew Point (°C)

14
14
14
14
14
14
14
14
15
15
15
15
14
13
13
13
13
13
13
14
14
14
14
14

Relative Humidity (%)

89
89
90
87
89
90
89
87
87
88
77
69
64
63
61
62
63
70
74
78
81
82
82
85

Pressure (mb)

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

Ozone (du)

262
262
263
263
263
264
266
267
266
266
266
266
266
265
262
262
260
258
258
257
256
256
254
254

Friday 19

Waning Crescent 6%

03:34

18:29

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
00 Bad
01 Bad

Sun - Rise: 06:42, Set: 19:05, Transit: 12:53. Moon - Rise: 03:34, Set: 18:29. Civil Dark: 19:39 - 06:07. Nautical Dark: 20:20 - 05:26. Astro Dark: 21:03 - 04:43

Total Clouds (% Sky Obscured)

100
100
97
80
85
69
94
96
91
86
79
82
85
89
86
84
82
88
94
100
98
95
93
95

Low Clouds (% Sky Obscured)

81
84
75
63
59
59
59
61
58
53
49
48
46
45
41
38
35
40
46
51
50
48
43
54

Medium Clouds (% Sky Obscured)

44
46
37
33
63
34
43
45
77
59
14
13
11
10
14
17
22
42
62
80
77
73
69
62

High Clouds (% Sky Obscured)

21
49
44
22
9
5
32
25
33
40
27
39
51
62
64
64
62
75
88
100
90
81
73
82

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 (%)

20
13
11
11
12
4
4
3
3
11
11
16
14
8
10
18
26
29
26
15
15
11
2
2

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

Chance of Frost

Temperature (°C)

17
17
17
17
17
17
17
18
19
20
21
21
22
22
22
21
21
20
20
19
18
18
17
17

Feels Like (°C)

14
14
15
14
15
15
17
16
17
17
19
20
21
21
21
20
20
20
20
19
18
19
18
18

Dew Point (°C)

14
14
14
14
15
15
15
15
14
13
13
15
16
16
17
16
16
16
16
15
15
15
15
15

Relative Humidity (%)

83
82
82
83
86
89
88
82
71
62
61
68
69
69
71
72
73
75
77
78
81
83
85
87

Pressure (mb)

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

Ozone (du)

254
255
255
256
256
256
256
256
255
255
255
253
254
254
255
255
256
256
257
257
258
259
261
262

Saturday 20

Waning Crescent 2%

04:54

18:38

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
00 Bad
01 Bad

Sun - Rise: 06:43, Set: 19:02, Transit: 12:53. Moon - Rise: 04:54, Set: 18:38. Civil Dark: 19:37 - 06:09. Nautical Dark: 20:18 - 05:28. Astro Dark: 21:01 - 04:45

Total Clouds (% Sky Obscured)

98
100
100
100
100
100
100
100
100
100
100
100
100
100
98
97
96
97
99
100
81
56
30
33

Low Clouds (% Sky Obscured)

61
71
71
66
63
60
56
51
41
31
22
21
21
23
34
44
50
58
67
76
63
39
20
21

Medium Clouds (% Sky Obscured)

54
50
64
75
90
89
84
76
74
72
70
80
90
100
84
68
51
58
50
45
27
19
12
9

High Clouds (% Sky Obscured)

91
100
100
100
100
100
100
100
100
100
100
100
100
100
97
94
89
90
85
80
57
35
12
8

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
8
8
8
9
9
9
9
9
7
5
2
3
4
4

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

Precipitation Probability (%)

2
0
7
15
22
20
19
15
25
33
41
62
77
86
63
42
18
38
56
69
68
73
81
75

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
16
16
16
16
16
17
17
18
19
20
20
20
20
20
20
21
20
20
19
18
17
16
15

Feels Like (°C)

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

Dew Point (°C)

15
14
14
14
14
14
14
14
15
15
16
17
16
17
17
17
18
18
18
17
17
15
14
12

Relative Humidity (%)

89
89
89
89
87
87
85
83
82
80
78
79
79
80
80
82
84
85
88
91
95
92
89
86

Pressure (mb)

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

Ozone (du)

263
263
263
264
265
266
266
266
265
266
266
266
269
271
274
275
276
277
278
280
281
287
293
299

Sunday 21

New Moon 0%

06:11

18:47

Sun - Rise: 06:45, Set: 19:00, Transit: 12:52. Moon - Rise: 06:11, Set: 18:47. Civil Dark: 19:34 - 06:11. Nautical Dark: 20:15 - 05:30. Astro Dark: 20:58 - 04:47

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: 15/09/25 02:59:35. Forecast: 15/09/25 to 21/09/25. Timezone: UTC+1.00