Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 18

Waning Crescent 3%

06:58

14:50

10 OK
11 OK
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

Sun - Rise: 07:32, Set: 16:06, Transit: 11:48. Moon - Rise: 06:58, Set: 14:50. Civil Dark: 16:44 - 06:54. Nautical Dark: 17:26 - 06:12. Astro Dark: 18:06 - 05:32

Total Clouds (% Sky Obscured)

25
45
57
68
100
78
74
54
63
38
33
58
84
70
96
81
100
100
99
95
91
96
92
100

Low Clouds (% Sky Obscured)

5
35
57
68
85
49
42
34
34
38
33
46
76
70
77
81
86
66
70
89
82
78
67
58

Medium Clouds (% Sky Obscured)

25
45
41
48
97
78
54
12
32
4
3
5
2
29
35
30
37
33
28
21
91
96
89
100

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
60

ISS Passover

Visibility (miles)

9
9
9
9
9
9
7
9
9
9
9
9
9
9
9
9
9
1
9
9
0
0
0
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Snow
Moderate Rain
Light Rain
None

Precipitation Probability (%)

0
3
6
26
49
53
26
19
12
18
5
8
23
13
11
28
35
17
28
69
95
95
89
17

Precipitation Amount (mm)

0
0
0
0
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
1.8
3.1
0.6
0

Wind Speed/Direction (mph)

7
8
10
11
13
12
13
11
12
12
12
11
12
12
12
12
11
14
14
15
17
20
20
20

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
77
75
75
78
85
85
85
91
88
91
93
88
86
88
85
89
93
86
85
96
96
96
82

Pressure (mb)

1019
1018
1016
1015
1014
1013
1012
1011
1010
1010
1009
1009
1008
1008
1007
1007
1007
1007
1007
1007
1007
1008
1009
1010

Ozone (du)

272
272
273
276
277
276
273
273
274
277
283
286
292
301
300
296
295
298
305
307
320
330
336
334

Wednesday 19

Waning Crescent 1%

08:12

15:06

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

Sun - Rise: 07:34, Set: 16:05, Transit: 11:49. Moon - Rise: 08:12, Set: 15:06. Civil Dark: 16:43 - 06:55. Nautical Dark: 17:25 - 06:13. Astro Dark: 18:06 - 05:33

Total Clouds (% Sky Obscured)

93
90
97
97
67
54
45
76
75
70
6
0
0
0
0
4
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

48
58
56
68
59
41
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

91
87
97
96
63
54
45
76
75
70
6
0
0
0
0
4
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

60
46
10
3
3
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 (%)

3
0
0
0
0
1
0
0
0
0
1
13
13
5
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)

20
20
20
20
18
18
17
16
15
14
13
13
13
12
12
13
12
12
12
11
11
10
9
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

0
1
2
2
2
1
-1
-2
-3
-3
-3
-3
-4
-4
-5
-5
-5
-5
-6
-6
-6
-6
-6
-6

Relative Humidity (%)

83
86
88
88
88
85
82
81
81
83
83
83
81
83
78
79
78
76
75
75
75
75
75
72

Pressure (mb)

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

Ozone (du)

323
315
320
327
329
329
324
321
313
319
320
321
320
320
315
318
314
311
310
313
313
312
312
312

Thursday 20

New Moon 0%

09:23

15:29

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

Sun - Rise: 07:35, Set: 16:04, Transit: 11:49. Moon - Rise: 09:23, Set: 15:29. Civil Dark: 16:42 - 06:57. Nautical Dark: 17:24 - 06:15. Astro Dark: 18:05 - 05:34

Total Clouds (% Sky Obscured)

0
0
4
2
4
30
34
21
8
4
14
45
25
28
25
29
39
32
48
46
43
50
45
47

Low Clouds (% Sky Obscured)

0
0
0
0
0
29
34
21
6
4
14
21
25
28
25
29
39
32
23
23
16
8
2
2

Medium Clouds (% Sky Obscured)

0
0
3
2
4
5
3
3
3
2
4
45
3
0
0
0
0
3
3
16
30
25
40
24

High Clouds (% Sky Obscured)

0
0
4
1
0
0
0
0
0
0
0
0
0
0
0
4
4
3
24
35
35
35
30
27

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
4
5
7
5
0
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
66
66
74
74
77
81
84
86
89
87
87
89
91
91
91
92
91
91
89
87
86
87
84

Pressure (mb)

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

Ozone (du)

317
321
318
314
310
309
308
309
311
312
311
310
308
306
304
302
299
294
292
292
292
293
293
292

Friday 21

Waxing Crescent 2%

No Rise

16:00

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
07 Bad
08 Bad
09 Bad

Sun - Rise: 07:37, Set: 16:03, Transit: 11:49. Moon - Rise: No Rise, Set: 16:00. Civil Dark: 16:41 - 06:58. Nautical Dark: 17:23 - 06:16. Astro Dark: 18:04 - 05:36

Total Clouds (% Sky Obscured)

54
56
62
69
79
83
90
97
98
99
99
99
100
100
100
100
100
100
100
100
98
96
95
97

Low Clouds (% Sky Obscured)

2
1
0
0
0
0
2
24
12
1
5
10
9
10
28
52
70
79
87
94
88
83
74
73

Medium Clouds (% Sky Obscured)

6
3
13
69
75
82
89
97
98
98
73
99
96
100
100
100
100
100
91
81
56
47
39
43

High Clouds (% Sky Obscured)

29
26
18
20
22
41
62
79
84
88
91
94
97
100
100
100
100
100
71
77
57
38
42
61

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
5
5
9
9
9
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
None
None
None
None
None
None
Very Light Rain
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
6
33
61
49
37
46
79
95
95
95
85
49
38

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0
0.4
0.8
1.2
0.8
0.5
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
74
70
69
76
80
83
84
84
86
89
89
88
93
94
96
96
96
94
96
98
98
96
96

Pressure (mb)

1026
1026
1026
1025
1025
1024
1024
1024
1024
1023
1023
1022
1021
1020
1019
1018
1017
1016
1015
1014
1013
1013
1012
1012

Ozone (du)

292
291
292
289
285
282
278
274
271
270
269
264
256
262
266
272
280
284
284
284
286
287
290
292

Saturday 22

Waxing Crescent 5%

10:25

16:44

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
07 Bad
08 Bad
09 Bad

Sun - Rise: 07:39, Set: 16:02, Transit: 11:49. Moon - Rise: 10:25, Set: 16:44. Civil Dark: 16:40 - 07:00. Nautical Dark: 17:23 - 06:18. Astro Dark: 18:03 - 05:37

Total Clouds (% Sky Obscured)

98
100
99
98
98
98
99
99
99
100
100
76
69
57
60
72
82
96
96
96
86
77
67
53

Low Clouds (% Sky Obscured)

67
68
76
81
86
86
86
83
79
74
69
76
69
57
60
72
82
95
93
90
82
75
67
52

Medium Clouds (% Sky Obscured)

49
100
93
88
83
74
92
96
97
98
69
76
69
57
60
66
71
64
56
48
33
18
3
2

High Clouds (% Sky Obscured)

81
100
75
50
15
29
48
67
49
35
27
5
2
1
1
2
2
1
1
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
8
8
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
None
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

29
23
21
15
3
8
9
7
8
13
18
47
62
74
95
72
36
40
37
27
23
15
2
3

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.6
1
0.5
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
4
4
4
5
5
5
5
4
4
4
3
3
3
3
3
3
3
3
4
4
4
4
4

Relative Humidity (%)

93
90
88
88
90
93
96
96
96
96
96
94
96
98
96
94
96
94
96
96
98
96
94
94

Pressure (mb)

1012
1011
1011
1010
1010
1010
1009
1009
1009
1009
1009
1009
1009
1009
1009
1008
1008
1008
1008
1008
1008
1008
1008
1008

Ozone (du)

292
293
293
292
292
289
287
285
284
284
282
280
279
278
277
276
275
274
273
272
271
272
272
272

Sunday 23

Waxing Crescent 10%

11:14

17:43

10 Bad
11 OK
12 OK
13 OK
14 OK
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

Sun - Rise: 07:40, Set: 16:01, Transit: 11:50. Moon - Rise: 11:14, Set: 17:43. Civil Dark: 16:39 - 07:01. Nautical Dark: 17:22 - 06:19. Astro Dark: 18:02 - 05:38

Total Clouds (% Sky Obscured)

40
26
24
21
25
40
47
46
55
71
89
87
87
88
91
94
98
98
99
100
100
100
99
97

Low Clouds (% Sky Obscured)

38
23
16
9
0
8
16
24
22
25
23
37
42
51
53
58
60
48
38
36
61
81
99
93

Medium Clouds (% Sky Obscured)

1
0
12
21
25
40
47
46
55
71
89
87
87
88
85
84
88
92
95
100
84
74
61
61

High Clouds (% Sky Obscured)

0
0
7
13
20
23
22
20
15
10
10
15
15
15
29
46
59
73
86
100
77
60
44
55

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
4
1
1
1
2
1
1
0

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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

2
1
3
3
0
7
12
11
22
23
14
11
6
0
20
33
48
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.7
1.3
1.9
1.6
1.5
1.5
1

Wind Speed/Direction (mph)

6
6
7
7
6
5
5
4
3
3
2
2
3
3
4
4
5
6
8
10
12
11
12
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
85
82
84
88
90
91
93
96
96
94
94
94
94
96
96
98
100
98
98
98
98
98
98

Pressure (mb)

1008
1007
1007
1007
1006
1006
1005
1005
1005
1004
1004
1003
1003
1002
1001
1000
998
997
996
994
993
992
991
990

Ozone (du)

275
277
279
278
277
276
275
274
274
273
272
271
270
269
268
268
269
270
272
273
275
278
282
285

Monday 24

Waxing Crescent 17%

11:51

18:52

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

Sun - Rise: 07:42, Set: 16:00, Transit: 11:50. Moon - Rise: 11:51, Set: 18:52. Civil Dark: 16:39 - 07:03. Nautical Dark: 17:21 - 06:20. Astro Dark: 18:02 - 05:40

Total Clouds (% Sky Obscured)

94
91
93
96
100
100
100
100
94
89
83
82
83
82
81
84
83
89
94
97

Low Clouds (% Sky Obscured)

88
80
74
68
63
65
67
69
72
76
79
75
73
67
74
81
83
82
74
65

Medium Clouds (% Sky Obscured)

65
61
74
85
100
95
86
80
54
27
2
4
5
7
21
36
53
67
80
91

High Clouds (% Sky Obscured)

52
53
39
29
17
10
6
0
0
0
0
2
4
6
6
7
5
9
8
10

ISS Passover

Visibility (miles)

1
2
3
4
6
8
8
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
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
95
95
95
82
48
48
42
25
23
20
16
15
14
10
22
31
38

Precipitation Amount (mm)

0.8
0.8
0.9
1.5
1.9
1
0.5
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
94
93
93
93
91
91
91
91
89
88
86
88
88
89
91
91
93
93
91

Pressure (mb)

990
989
988
988
987
987
988
988
989
990
990
991
992
993
994
995
996
997
998
999

Ozone (du)

289
293
296
300
304
308
311
313
315
315
315
315
310
306
301
300
299
298
297
296

Forecast for Northampton, Northamptonshire, United Kingdom (52.24,-0.89)

Generated: 18/11/25 10:41:20. Forecast: 18/11/25 to 24/11/25. Timezone: UTC+0.00