Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 24

Waxing Crescent 8%

11:18

18:25

04 OK
05 OK
06 OK
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
02 Bad
03 Bad

Sun - Rise: 07:42, Set: 17:47, Transit: 12:44. Moon - Rise: 11:18, Set: 18:25. Civil Dark: 18:22 - 07:07. Nautical Dark: 19:01 - 06:28. Astro Dark: 19:40 - 05:49

Total Clouds (% Sky Obscured)

18
17
24
45
57
56
71
75
64
82
52
84
89
100
98
94
89
88
64
69
68
90
99
100

Low Clouds (% Sky Obscured)

18
14
24
45
57
56
71
75
64
82
49
84
37
45
53
57
86
63
53
69
62
65
79
70

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
1
4
34
16
33
22
14
60
4
4
61
90
95
29

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
50
40
37
3
0
16
40
45
45
44
30

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
3
27
27
28
24
14
14
15
16
29
28
6
3
7
32
52

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
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

1
1
1
2
1
2
4
5
6
7
6
7
6
5
4
4
5
5
4
4
4
3
3
4

Dew Point (°C)

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

Relative Humidity (%)

82
82
80
85
83
81
77
70
67
65
67
68
73
74
77
80
84
85
87
91
93
88
88
88

Pressure (mb)

1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
999
999
998
998
998
998
997
997
997
997
998
998
999
999

Ozone (du)

316
312
310
307
307
307
305
304
301
299
295
296
298
297
298
302
303
299
296
295
296
299
300
301

Saturday 25

Waxing Crescent 15%

12:26

19:00

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

Sun - Rise: 07:44, Set: 17:45, Transit: 12:44. Moon - Rise: 12:26, Set: 19:00. Civil Dark: 18:20 - 07:09. Nautical Dark: 18:59 - 06:30. Astro Dark: 19:38 - 05:51

Total Clouds (% Sky Obscured)

100
97
87
67
80
72
85
63
44
43
53
55
46
40
34
42
39
52
77
79
58
43
30
30

Low Clouds (% Sky Obscured)

51
46
54
53
49
58
70
53
44
43
52
55
44
39
34
42
31
38
50
43
46
43
30
30

Medium Clouds (% Sky Obscured)

38
32
26
11
27
11
21
10
0
0
0
0
0
0
0
0
7
18
33
37
19
0
0
0

High Clouds (% Sky Obscured)

3
32
61
7
4
5
7
0
0
4
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 (%)

13
3
0
0
0
11
0
1
0
0
2
4
13
3
0
0
0
13
2
1
4
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

6
6
6
6
5
5
6
6
2
1
0
2
2
2
1
0
0
2
3
3
3
3
1
2

Relative Humidity (%)

87
88
88
88
85
85
81
80
59
51
49
57
60
61
61
62
66
78
83
82
82
83
78
85

Pressure (mb)

1000
1000
1001
1002
1003
1004
1004
1005
1005
1005
1005
1005
1005
1006
1006
1007
1007
1007
1008
1008
1008
1008
1008
1008

Ozone (du)

303
301
301
303
302
299
298
301
299
293
287
285
292
291
288
289
292
296
297
295
294
293
291
294

Sunday 26

Waxing Crescent 22%

12:25

18:48

04 OK
05 OK
06 OK
07 OK
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
02 Bad
03 Bad

Sun - Rise: 06:45, Set: 16:43, Transit: 11:44. Moon - Rise: 12:25, Set: 18:48. Civil Dark: 17:18 - 06:11. Nautical Dark: 17:57 - 05:31. Astro Dark: 18:36 - 04:52

Total Clouds (% Sky Obscured)

35
33
27
29
44
56
92
95
97
100
98
98
100
100
100
100
100
96
99
89
83
78
77
82

Low Clouds (% Sky Obscured)

35
33
27
28
34
25
53
66
44
65
67
68
91
100
75
97
61
56
68
72
63
70
77
82

Medium Clouds (% Sky Obscured)

0
0
0
0
1
4
61
94
96
87
77
98
100
100
98
97
100
95
84
80
73
47
3
8

High Clouds (% Sky Obscured)

0
0
2
8
36
56
55
50
45
55
85
30
100
100
100
92
50
54
86
0
0
1
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
6
3
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
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
3
1
0
5
28
69
95
80
67
37
35
30
7
4
9
19
19

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.8
0.6
0.6
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

2
2
3
2
3
3
3
3
3
2
2
4
4
6
7
8
8
8
9
7
7
7
6
6

Relative Humidity (%)

85
86
89
88
86
79
75
68
65
60
61
69
73
85
90
91
83
84
87
80
81
82
80
76

Pressure (mb)

1008
1008
1009
1009
1010
1010
1010
1010
1010
1009
1009
1008
1007
1006
1005
1004
1003
1003
1002
1002
1002
1002
1002
1001

Ozone (du)

292
288
287
286
285
284
283
282
283
283
279
278
277
277
276
276
276
275
277
277
277
278
279
279

Monday 27

Waxing Crescent 31%

13:10

19:51

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

Sun - Rise: 06:47, Set: 16:41, Transit: 11:44. Moon - Rise: 13:10, Set: 19:51. Civil Dark: 17:16 - 06:12. Nautical Dark: 17:55 - 05:33. Astro Dark: 18:34 - 04:54

Total Clouds (% Sky Obscured)

87
94
82
66
73
71
67
29
16
12
6
3
3
2
2
2
0
2
3
3
10
22
10
30

Low Clouds (% Sky Obscured)

87
90
77
62
69
67
58
29
16
12
6
3
2
1
1
1
0
1
1
1
6
15
10
13

Medium Clouds (% Sky Obscured)

13
21
18
12
6
3
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
10

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
2
2
1
1
1

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 (%)

6
7
6
29
33
22
11
1
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)

15
15
15
16
17
17
16
16
17
16
15
13
12
10
8
9
9
9
9
8
7
6
6
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
73
74
77
76
77
80
76
61
58
56
58
60
64
71
74
75
82
82
80
79
78
71
76

Pressure (mb)

1002
1002
1002
1002
1003
1004
1005
1007
1008
1008
1009
1010
1011
1012
1013
1013
1014
1015
1015
1016
1016
1016
1017
1017

Ozone (du)

279
280
281
283
286
286
288
289
289
288
287
288
289
288
286
284
283
281
279
278
278
275
273
272

Tuesday 28

Waxing Crescent 41%

13:44

21:03

04 OK
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
02 Bad
03 Bad

Sun - Rise: 06:49, Set: 16:39, Transit: 11:44. Moon - Rise: 13:44, Set: 21:03. Civil Dark: 17:14 - 06:14. Nautical Dark: 17:54 - 05:35. Astro Dark: 18:32 - 04:56

Total Clouds (% Sky Obscured)

46
72
90
98
100
100
100
99
100
100
100
100
100
100
85
85
83
84
89
94
96
98
100
100

Low Clouds (% Sky Obscured)

23
37
63
83
100
81
62
43
52
62
72
74
75
77
72
74
76
80
84
88
83
78
73
68

Medium Clouds (% Sky Obscured)

23
46
56
60
48
34
20
6
5
4
2
2
32
45
38
35
20
14
7
0
0
0
0
0

High Clouds (% Sky Obscured)

1
2
1
1
8
30
62
97
99
98
100
100
100
100
38
33
27
36
46
60
73
87
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
1
4
8
9
9
2
4
4
1
3
1
1
10
9
2
4
5
5
15
17
15
16

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

Chance of Frost

Temperature (°C)

4
4
4
5
6
7
8
9
11
12
13
13
13
12
11
11
11
10
10
10
10
10
10
10

Feels Like (°C)

2
2
2
2
3
3
4
5
6
8
9
10
9
8
8
8
7
8
8
7
8
7
7
7

Dew Point (°C)

1
1
1
2
2
3
3
5
5
6
8
9
9
9
10
10
10
10
10
10
10
10
9
10

Relative Humidity (%)

77
77
79
82
75
74
73
73
67
67
72
76
80
84
90
91
95
96
95
96
98
96
95
95

Pressure (mb)

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

Ozone (du)

271
269
267
267
266
265
265
264
262
261
261
261
261
260
261
262
263
263
263
263
262
262
262
262

Wednesday 29

First Quarter 51%

14:08

22:22

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
02 Bad
03 Bad

Sun - Rise: 06:51, Set: 16:37, Transit: 11:44. Moon - Rise: 14:08, Set: 22:22. Civil Dark: 17:12 - 06:16. Nautical Dark: 17:52 - 05:36. Astro Dark: 18:31 - 04:57

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
98
97
99
99
100
98
97
95
92
90
88
90
92
94
94
95
96
97

Low Clouds (% Sky Obscured)

65
68
63
61
58
55
52
49
51
49
50
59
62
64
62
59
57
53
50
46
43
46
43
44

Medium Clouds (% Sky Obscured)

0
0
7
11
17
19
25
31
54
72
89
89
86
84
83
83
86
90
92
94
94
95
95
85

High Clouds (% Sky Obscured)

100
100
100
100
100
98
96
96
70
47
24
37
53
64
57
62
43
49
60
72
75
79
79
84

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
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
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

15
9
10
7
0
0
0
0
0
0
0
0
0
0
4
11
16
31
38
43
37
30
28
34

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
90
88
84
83
81
72
64
58
57
56
56
56
57
57
60
64
67
74
84
93
93
93
95

Pressure (mb)

1014
1014
1014
1014
1013
1013
1013
1012
1011
1010
1009
1009
1008
1008
1007
1007
1006
1006
1005
1004
1004
1003
1002
1001

Ozone (du)

262
262
261
261
261
261
261
260
260
259
259
258
258
258
258
259
261
263
264
265
266
265
265
264

Thursday 30

Waxing Gibbous 62%

14:26

23:43

Sun - Rise: 06:53, Set: 16:35, Transit: 11:44. Moon - Rise: 14:26, Set: 23:43. Civil Dark: 17:11 - 06:17. Nautical Dark: 17:50 - 05:38. Astro Dark: 18:29 - 04:59

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 Welwyn Garden City, Hertfordshire, United Kingdom (51.80,-0.21)

Generated: 24/10/25 03:28:45. Forecast: 24/10/25 to 30/10/25. Timezone: UTC+1.00