Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 6%

03:48

18:23

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
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 06:52, Set: 19:17, Transit: 13:03. Moon - Rise: 03:48, Set: 18:23. Civil Dark: 19:50 - 06:19. Nautical Dark: 20:31 - 05:39. Astro Dark: 21:13 - 04:57

Total Clouds (% Sky Obscured)

89
92
80
92
96
99
100
99
99
100
100
100
100
100
100
100
99
94
82
86
93
83
94
95

Low Clouds (% Sky Obscured)

53
44
65
63
68
81
62
57
55
51
78
56
71
72
60
66
60
62
69
65
70
72
69
56

Medium Clouds (% Sky Obscured)

1
0
39
39
45
50
28
92
67
42
37
48
40
19
37
59
74
75
64
53
43
66
64
30

High Clouds (% Sky Obscured)

89
68
55
88
82
87
99
99
98
100
100
100
100
100
100
100
97
88
82
86
90
79
55
93

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
4
1
1
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)

14
14
13
12
13
11
10
11
12
12
10
10
9
9
9
8
8
10
12
13
14
14
15
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
76
78
82
89
93
93
90
90
89
92
96
96
96
96
96
95
87
81
73
67
60
57
55

Pressure (mb)

1017
1017
1017
1018
1018
1018
1018
1019
1019
1019
1018
1018
1018
1017
1017
1017
1017
1017
1017
1017
1017
1016
1015
1015

Ozone (du)

261
261
259
259
259
260
261
260
260
260
261
261
260
261
260
259
259
260
261
262
262
263
262
264

Friday 19

Waning Crescent 2%

05:06

18:36

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
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 06:54, Set: 19:14, Transit: 13:03. Moon - Rise: 05:06, Set: 18:36. Civil Dark: 19:48 - 06:20. Nautical Dark: 20:28 - 05:40. Astro Dark: 21:10 - 04:59

Total Clouds (% Sky Obscured)

86
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
97
100
100
100
91

Low Clouds (% Sky Obscured)

60
47
48
30
66
74
75
71
78
74
77
78
67
64
61
79
76
87
87
78
74
69
87
85

Medium Clouds (% Sky Obscured)

14
35
34
40
34
0
0
0
8
27
29
23
63
53
48
92
49
37
51
78
70
80
95
72

High Clouds (% Sky Obscured)

69
100
100
100
100
100
92
84
100
100
100
100
100
100
100
97
83
100
85
69
100
100
72
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
6
4
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
31
12
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
Very Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
11
44
54
70
79
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.7

Wind Speed/Direction (mph)

13
11
10
7
7
6
6
6
6
6
6
7
7
7
6
6
6
9
10
12
13
15
17
16

Chance of Frost

Temperature (°C)

19
19
18
17
17
16
16
16
16
16
15
15
15
15
15
14
15
15
16
17
17
18
18
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
59
64
72
79
85
89
92
93
93
96
95
96
95
95
95
92
85
81
74
73
73
88
88

Pressure (mb)

1015
1014
1014
1014
1014
1014
1014
1014
1013
1013
1012
1011
1011
1010
1010
1009
1009
1009
1008
1008
1007
1006
1005
1004

Ozone (du)

265
266
266
266
267
267
267
268
268
267
266
265
264
264
265
267
268
268
268
269
269
269
270
273

Saturday 20

Waning Crescent 0%

06:22

18:47

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

Sun - Rise: 06:56, Set: 19:12, Transit: 13:03. Moon - Rise: 06:22, Set: 18:47. Civil Dark: 19:46 - 06:22. Nautical Dark: 20:26 - 05:42. Astro Dark: 21:07 - 05:01

Total Clouds (% Sky Obscured)

80
74
39
1
27
38
61
57
55
57
64
54
37
54
61
71
79
87
90
91
80
81
79
98

Low Clouds (% Sky Obscured)

62
64
39
0
25
38
48
57
55
57
64
54
37
54
52
56
69
67
58
49
58
63
69
76

Medium Clouds (% Sky Obscured)

56
21
1
1
0
0
15
11
9
12
9
6
6
13
14
13
26
36
33
38
29
32
32
65

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
0

ISS Passover

Visibility (miles)

5
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 (%)

71
24
4
3
12
2
0
0
2
1
2
6
4
2
3
1
3
1
0
0
0
1
1
1

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)

20
18
17
13
13
12
10
8
9
9
7
6
5
5
4
5
6
9
13
13
13
12
13
14

Chance of Frost

Temperature (°C)

16
16
14
12
11
11
10
10
10
10
10
10
10
9
9
9
10
11
11
11
12
13
13
13

Feels Like (°C)

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

Dew Point (°C)

14
13
11
10
9
7
8
8
9
8
8
8
9
8
7
7
7
7
7
6
5
4
3
3

Relative Humidity (%)

86
85
83
84
87
78
84
87
88
84
88
90
91
91
91
91
84
78
72
68
62
54
50
50

Pressure (mb)

1004
1004
1005
1006
1007
1007
1008
1007
1007
1007
1008
1008
1008
1009
1010
1011
1012
1013
1014
1015
1015
1016
1016
1016

Ozone (du)

283
286
290
293
296
305
310
309
306
307
308
309
310
311
311
312
314
314
313
313
313
314
314
315

Sunday 21

New Moon 1%

07:36

18:57

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

Sun - Rise: 06:57, Set: 19:10, Transit: 13:02. Moon - Rise: 07:36, Set: 18:57. Civil Dark: 19:43 - 06:24. Nautical Dark: 20:23 - 05:44. Astro Dark: 21:05 - 05:03

Total Clouds (% Sky Obscured)

97
97
97
99
99
91
91
84
28
44
45
25
18
11
2
8
14
20
35
52
66
53
47
44

Low Clouds (% Sky Obscured)

74
72
70
55
39
27
20
13
1
13
27
25
18
11
0
8
14
20
31
39
50
41
33
24

Medium Clouds (% Sky Obscured)

54
49
34
35
37
40
31
24
14
10
6
0
0
1
2
2
0
0
9
17
22
22
23
23

High Clouds (% Sky Obscured)

0
0
0
25
53
80
53
25
3
8
10
0
0
2
0
0
1
1
3
16
19
2
2
2

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
10
14
14
14
16
7
4
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
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)

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

Chance of Frost

Temperature (°C)

12
12
12
11
11
10
9
9
9
8
7
7
6
6
6
5
7
8
10
11
12
13
14
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
54
54
52
61
65
73
70
66
77
82
84
85
86
88
90
85
73
65
58
51
48
44
41

Pressure (mb)

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

Ozone (du)

316
317
317
317
318
317
316
317
318
318
320
321
318
317
317
316
315
313
311
310
310
308
306
305

Monday 22

Waxing Crescent 3%

08:48

19:06

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

Sun - Rise: 06:59, Set: 19:07, Transit: 13:02. Moon - Rise: 08:48, Set: 19:06. Civil Dark: 19:41 - 06:25. Nautical Dark: 20:21 - 05:46. Astro Dark: 21:02 - 05:04

Total Clouds (% Sky Obscured)

44
45
44
48
51
53
36
19
1
1
2
5
9
13
13
86
86
90
88
87
83
90
93
97

Low Clouds (% Sky Obscured)

30
35
41
47
51
53
36
19
0
0
0
0
0
0
0
23
18
14
27
39
49
53
58
64

Medium Clouds (% Sky Obscured)

17
11
5
3
2
0
2
2
1
1
2
3
4
3
3
14
17
26
26
28
29
39
42
45

High Clouds (% Sky Obscured)

2
2
2
2
2
3
4
3
1
1
2
2
2
5
6
41
46
72
59
30
1
29
57
70

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
1
1
0
4
5
3

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
10
8
7
7
6
5
5
4
4
3
3
3
3
2
2
3
4
5
7
9
11
11
11

Chance of Frost

Temperature (°C)

14
13
12
10
9
8
8
7
6
6
6
5
5
5
5
5
7
9
10
11
13
14
14
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

41
40
49
56
63
70
74
79
82
85
88
88
89
88
86
83
78
74
71
64
59
53
52
50

Pressure (mb)

1025
1026
1026
1026
1027
1027
1027
1028
1028
1028
1027
1027
1027
1027
1028
1028
1027
1027
1027
1027
1026
1026
1026
1025

Ozone (du)

304
303
302
302
301
301
301
301
301
301
301
300
299
299
299
299
299
300
300
300
300
300
300
300

Tuesday 23

Waxing Crescent 7%

10:02

19:17

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
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:00, Set: 19:05, Transit: 13:02. Moon - Rise: 10:02, Set: 19:17. Civil Dark: 19:39 - 06:27. Nautical Dark: 20:18 - 05:47. Astro Dark: 20:59 - 05:06

Total Clouds (% Sky Obscured)

98
99
100
100
99
96
92
90
91
80
62
57
62
72
72
78
84
89
97
98
99
97
94
89

Low Clouds (% Sky Obscured)

76
87
97
88
80
71
80
89
91
80
62
57
62
66
61
74
84
89
95
90
84
86
84
85

Medium Clouds (% Sky Obscured)

35
20
10
5
4
8
9
14
25
35
35
40
39
33
23
24
24
20
20
20
30
35
35
30

High Clouds (% Sky Obscured)

33
15
0
17
40
70
85
85
90
66
47
28
43
55
53
52
56
63
74
84
90
85
79
73

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

Precipitation Probability (%)

23
27
27
26
26
29
37
44
49
58
66
73
65
56
44
40
35
28
29
29
30
36
38
34

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.2
0.3
0.3
0.4
0.3
0.2
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
13
12
11
11
10
9
9
9
9
8
7
7
6
6
5
7
9
11
12
13
14
14
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

49
54
61
66
72
77
84
82
80
78
82
87
90
91
93
94
85
77
69
63
57
51
50
48

Pressure (mb)

1025
1025
1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025
1025
1025
1026
1026
1026
1026
1025
1025
1025
1024

Ozone (du)

300
300
300
300
300
300
301
301
301
301
301
302
302
303
305
306
306
307
308
308
308
308
308
309

Wednesday 24

Waxing Crescent 13%

11:16

19:28

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
10 Bad
11 Bad
12 Bad

Sun - Rise: 07:02, Set: 19:03, Transit: 13:01. Moon - Rise: 11:16, Set: 19:28. Civil Dark: 19:36 - 06:29. Nautical Dark: 20:16 - 05:49. Astro Dark: 20:57 - 05:08

Total Clouds (% Sky Obscured)

88
83
80
79
78
77
77
77
72
68
76
96
97
98
100
100
99
98
99
99
100

Low Clouds (% Sky Obscured)

84
82
80
79
78
77
76
75
71
68
72
81
88
93
99
99
99
98
97
97
98

Medium Clouds (% Sky Obscured)

35
34
34
34
39
44
44
48
48
44
44
40
30
30
25
29
33
46
52
58
75

High Clouds (% Sky Obscured)

73
64
62
62
62
67
72
72
72
68
76
96
97
98
96
67
39
13
23
32
41

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

Fog (%)

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

Precipitation Probability (%)

41
40
43
36
33
42
41
36
30
37
39
34
41
48
55
53
55
65
51
43
37

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0.2
0.4
0.2
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
14
13
11
10
9
8
8
8
8
8
9
10
10
10
10
11
12
12
13
14

Feels Like (°C)

11
11
12
12
9
9
10
9
9
9
7
7
7
7
7
7
8
9
8
9
9

Dew Point (°C)

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

Relative Humidity (%)

48
52
57
63
68
73
79
81
85
88
82
77
72
72
73
73
72
71
70
69
66

Pressure (mb)

1024
1024
1025
1025
1025
1026
1026
1027
1027
1027
1027
1026
1026
1026
1026
1026
1026
1027
1027
1027
1026

Ozone (du)

310
310
311
311
310
309
309
308
307
306
306
306
305
305
305
305
304
304
303
302
301

Forecast for Ross on Wye, Herefordshire, United Kingdom (51.91,-2.58)

Generated: 18/09/25 16:47:36. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+1.00