Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 29

Waning Gibbous 86%

19:45

12:13

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

Sun - Rise: 07:00, Set: 18:40, Transit: 12:50. Moon - Rise: 19:45, Set: 12:13. Civil Dark: 19:13 - 06:27. Nautical Dark: 19:52 - 05:48. Astro Dark: 20:32 - 05:08

Total Clouds (% Sky Obscured)

42
55
65
100
100
100
100
100
100
100
100
100
78
64
75
70
90
82
100
100
100
30
28
41

Low Clouds (% Sky Obscured)

0
10
0
0
41
50
64
68
74
53
84
58
50
22
60
54
18
10
0
16
1
2
4
5

Medium Clouds (% Sky Obscured)

42
45
65
77
100
97
99
100
100
100
88
47
26
6
74
18
0
0
0
5
10
0
26
31

High Clouds (% Sky Obscured)

42
55
65
100
100
100
100
100
100
100
99
43
24
39
15
29
87
72
100
100
100
30
28
6

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
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

17
10
0
0
2
17
17
28
16
16
62
50
9
1
0
0
0
0
0
0
0
0
0
4

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.5
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
19
19
20
20
20
19
19
19
19
20
20
20
21
22
22
22
22
21
20
18
17
16
15

Feels Like (°C)

17
17
18
18
18
17
17
17
17
17
17
18
17
18
19
19
19
18
19
17
15
15
14
13

Dew Point (°C)

15
15
16
17
16
15
15
15
16
16
16
15
14
11
10
11
10
7
8
10
9
9
10
9

Relative Humidity (%)

78
77
78
82
80
74
75
73
82
80
77
75
69
55
47
51
47
38
43
51
56
60
65
68

Pressure (mb)

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

Ozone (du)

276
275
276
275
274
273
274
274
275
276
277
278
279
280
279
281
282
283
283
283
284
286
286
288

Wednesday 30

Waning Gibbous 76%

20:28

13:37

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

Sun - Rise: 07:02, Set: 18:38, Transit: 12:50. Moon - Rise: 20:28, Set: 13:37. Civil Dark: 19:11 - 06:29. Nautical Dark: 19:50 - 05:50. Astro Dark: 20:30 - 05:10

Total Clouds (% Sky Obscured)

71
89
78
66
59
64
50
43
54
46
53
41
33
32
31
34
31
25
15
22
6
19
82
49

Low Clouds (% Sky Obscured)

52
32
27
66
59
50
37
25
31
24
31
27
24
26
21
22
22
17
15
22
5
2
1
0

Medium Clouds (% Sky Obscured)

71
86
67
5
11
3
0
0
0
2
2
0
0
0
13
19
18
11
0
0
0
2
69
12

High Clouds (% Sky Obscured)

45
50
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
6
3
15
74
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
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

Precipitation Probability (%)

7
42
30
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0.2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
67
69
74
75
80
87
90
92
87
75
66
57
50
46
41
40
39
39
45
49
55
59
63

Pressure (mb)

1016
1017
1017
1017
1017
1018
1018
1019
1019
1020
1021
1022
1022
1023
1023
1023
1023
1024
1024
1025
1026
1026
1027
1028

Ozone (du)

289
289
291
292
293
293
295
297
299
302
305
307
309
314
310
310
310
309
305
304
302
302
301
302

Thursday 1

Waning Gibbous 66%

21:28

14:47

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

Sun - Rise: 07:04, Set: 18:35, Transit: 12:50. Moon - Rise: 21:28, Set: 14:47. Civil Dark: 19:09 - 06:30. Nautical Dark: 19:48 - 05:51. Astro Dark: 20:28 - 05:11

Total Clouds (% Sky Obscured)

45
50
52
78
70
52
67
63
43
34
45
50
43
56
71
79
76
62
39
26
42
45
32
75

Low Clouds (% Sky Obscured)

0
0
0
0
3
4
10
12
17
17
26
33
40
40
21
24
32
17
10
0
0
0
0
0

Medium Clouds (% Sky Obscured)

45
50
52
78
4
10
4
5
4
4
4
4
4
4
4
11
18
11
13
6
10
9
9
14

High Clouds (% Sky Obscured)

45
44
47
76
63
35
46
42
22
8
26
21
11
27
57
69
56
38
10
15
26
28
16
46

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)

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

Chance of Frost

Temperature (°C)

12
12
11
11
11
10
10
10
10
10
13
15
17
18
19
20
21
20
20
19
17
16
15
14

Feels Like (°C)

10
10
10
9
9
8
8
8
8
9
12
14
15
16
17
19
18
18
17
17
15
14
13
13

Dew Point (°C)

6
6
6
6
6
7
7
7
7
7
8
8
8
8
8
8
8
7
7
8
7
7
7
7

Relative Humidity (%)

66
67
68
71
73
80
82
82
84
78
70
62
57
52
47
44
43
42
44
49
54
57
60
63

Pressure (mb)

1028
1028
1028
1028
1029
1029
1029
1029
1029
1030
1030
1030
1030
1030
1029
1029
1028
1028
1028
1028
1028
1029
1029
1029

Ozone (du)

302
302
302
301
300
299
299
299
300
301
301
300
299
298
297
297
297
297
297
297
297
297
297
297

Friday 2

Waning Gibbous 54%

22:45

15:39

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

Sun - Rise: 07:05, Set: 18:33, Transit: 12:49. Moon - Rise: 22:45, Set: 15:39. Civil Dark: 19:06 - 06:32. Nautical Dark: 19:45 - 05:53. Astro Dark: 20:25 - 05:13

Total Clouds (% Sky Obscured)

80
86
82
83
81
81
83
84
82
84
68
55
94
100
100
94
66
49
34
18
12
6
6
10

Low Clouds (% Sky Obscured)

0
0
5
9
16
20
26
32
34
33
36
34
35
35
36
38
38
28
20
10
7
3
3
3

Medium Clouds (% Sky Obscured)

20
22
23
21
19
14
12
45
67
26
3
3
1
0
13
34
43
27
15
5
3
2
3
3

High Clouds (% Sky Obscured)

43
35
35
40
45
45
45
50
55
60
44
28
88
100
96
83
45
30
14
0
0
0
3
5

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
3
5
23
21
15
17
4
0
2
4
0
2
2
1
2
1
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
7
6
6
6
6
6
6
6
6
7
7
7
7
7
7
7
6
5
5
4
4
4

Chance of Frost

Temperature (°C)

14
13
13
13
13
12
13
13
13
14
15
16
17
18
19
19
19
18
18
16
15
14
13
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
66
68
69
69
70
71
71
69
68
60
56
51
47
46
43
41
41
41
48
50
50
54
61

Pressure (mb)

1029
1029
1029
1029
1028
1028
1028
1028
1028
1029
1029
1029
1029
1029
1029
1028
1028
1028
1028
1028
1029
1029
1030
1030

Ozone (du)

296
297
297
297
297
297
298
297
296
296
297
298
299
300
302
303
303
303
304
303
302
302
302
302

Saturday 3

Third Quarter 42%

No Rise

16:15

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

Sun - Rise: 07:07, Set: 18:31, Transit: 12:49. Moon - Rise: No Rise, Set: 16:15. Civil Dark: 19:04 - 06:34. Nautical Dark: 19:43 - 05:55. Astro Dark: 20:23 - 05:15

Total Clouds (% Sky Obscured)

12
46
36
7
9
15
25
35
30
16
4
4
7
18
35
51
61
48
50
35
36
39
49
41

Low Clouds (% Sky Obscured)

3
3
3
0
0
0
0
0
0
0
0
0
0
0
2
4
6
8
11
13
9
5
1
2

Medium Clouds (% Sky Obscured)

3
0
0
0
0
4
7
10
7
3
0
0
0
0
0
1
1
2
3
4
4
3
3
3

High Clouds (% Sky Obscured)

8
46
36
6
7
9
11
20
27
16
3
2
5
11
25
38
61
48
42
28
35
39
49
40

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)

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

Chance of Frost

Temperature (°C)

11
11
10
10
10
9
9
9
9
10
12
14
15
17
18
19
19
19
18
17
16
15
14
12

Feels Like (°C)

12
12
10
10
10
10
10
10
10
11
13
15
16
17
18
18
18
18
18
18
19
14
14
13

Dew Point (°C)

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

Relative Humidity (%)

66
72
74
78
81
85
88
90
90
90
81
71
64
57
52
51
49
48
53
59
65
68
74
77

Pressure (mb)

1030
1030
1030
1030
1029
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1029
1029
1028
1028
1028
1029
1029
1029
1029

Ozone (du)

303
302
302
302
300
301
300
300
300
298
297
296
296
294
293
293
294
295
294
294
294
293
293
292

Sunday 4

Waning Crescent 31%

00:11

16:39

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

Sun - Rise: 07:09, Set: 18:28, Transit: 12:49. Moon - Rise: 00:11, Set: 16:39. Civil Dark: 19:02 - 06:35. Nautical Dark: 19:41 - 05:56. Astro Dark: 20:20 - 05:17

Total Clouds (% Sky Obscured)

30
19
20
23
27
29
33
36
31
27
22
32
38
38
27
19
11
20
29
38
31
24
18
17

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

4
5
4
2
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

24
7
11
16
20
23
26
29
24
20
19
27
29
28
22
16
10
19
27
36
28
21
15
17

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)

4
4
4
4
4
4
4
4
4
5
5
6
5
5
5
4
4
5
4
4
4
4
4
4

Chance of Frost

Temperature (°C)

12
11
11
10
10
10
10
9
9
11
13
15
17
18
20
20
21
21
19
18
16
15
14
12

Feels Like (°C)

13
13
12
11
11
11
11
10
11
10
11
12
12
13
14
20
19
18
18
19
19
13
14
14

Dew Point (°C)

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

Relative Humidity (%)

81
84
88
87
88
88
90
88
90
83
75
69
62
54
49
47
46
43
48
55
62
66
70
73

Pressure (mb)

1029
1029
1029
1028
1028
1028
1028
1028
1027
1027
1027
1027
1027
1026
1026
1025
1024
1024
1024
1024
1024
1024
1024
1023

Ozone (du)

290
287
285
283
281
280
279
278
277
276
276
276
274
273
272
273
273
273
273
273
273
274
275
276

Monday 5

Waning Crescent 20%

01:39

16:57

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

Sun - Rise: 07:10, Set: 18:26, Transit: 12:48. Moon - Rise: 01:39, Set: 16:57. Civil Dark: 19:00 - 06:37. Nautical Dark: 19:39 - 05:58. Astro Dark: 20:18 - 05:19

Total Clouds (% Sky Obscured)

15
13
8
3
0
1
2
2
3
3
1
20
40
60
59
61
64
70
77
81

Low Clouds (% Sky Obscured)

1
0
0
0
0
1
2
2
3
2
0
10
25
42
54
56
55
57
61
67

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
1
1
17
34
50
47
47
48
48
42
39

High Clouds (% Sky Obscured)

15
13
8
3
0
0
0
0
0
0
0
7
13
20
23
21
21
27
34
40

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

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
1
1
1
9
11
11

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

12
12
11
11
11
11
11
10
10
12
14
15
16
17
18
17
17
16
15
15

Feels Like (°C)

13
13
13
11
11
11
12
11
11
11
11
12
13
14
14
17
17
17
16
16

Dew Point (°C)

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

Relative Humidity (%)

76
79
80
81
83
84
84
85
87
75
65
56
58
58
59
62
64
67
67
66

Pressure (mb)

1023
1023
1023
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020
1020
1021

Ozone (du)

278
279
280
282
283
285
285
286
287
289
291
294
295
295
296
294
292
290
291
292

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

Generated: 29/09/26 23:06:55. Forecast: 29/09/26 to 05/10/26. Timezone: UTC+1.00