Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 11%

04:04

17:42

08 Bad
09 OK
10 Good
11 Good
12 Bad
13 Bad
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 OK
03 Good
04 Good
05 OK
06 Bad
07 Bad

Sun - Rise: 06:35, Set: 18:53, Transit: 12:44. Moon - Rise: 04:04, Set: 17:42. Civil Dark: 19:22 - 06:07. Nautical Dark: 19:55 - 05:33. Astro Dark: 20:30 - 04:59

Total Clouds (% Sky Obscured)

60
42
9
13
53
49
11
2
2
0
0
1
0
0
4
1
0
31
35
6
6
33
70
86

Low Clouds (% Sky Obscured)

0
0
0
0
23
21
9
0
0
0
0
1
0
0
0
0
0
0
30
3
4
27
54
74

Medium Clouds (% Sky Obscured)

52
11
2
5
1
1
0
0
0
0
0
0
0
0
2
0
0
31
29
4
4
28
19
29

High Clouds (% Sky Obscured)

60
21
5
5
32
21
2
2
2
0
0
0
0
0
3
1
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 (%)

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)

2
1
0
1
2
3
5
7
8
7
4
3
3
3
3
3
3
3
3
3
2
3
3
2

Chance of Frost

Temperature (°C)

11
17
20
23
25
26
27
27
26
25
23
20
18
17
16
15
14
13
13
13
13
13
13
13

Feels Like (°C)

11
17
21
24
26
27
27
26
26
25
25
21
20
18
17
16
15
15
15
15
15
14
14
14

Dew Point (°C)

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

Relative Humidity (%)

73
58
47
40
34
30
28
30
30
37
53
59
63
66
68
71
74
78
84
89
93
95
96
90

Pressure (mb)

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

Ozone (du)

293
291
289
289
289
289
287
289
289
290
290
290
291
291
290
290
291
291
293
293
290
290
289
290

Friday 19

Waning Crescent 5%

05:13

18:04

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

Sun - Rise: 06:36, Set: 18:51, Transit: 12:43. Moon - Rise: 05:13, Set: 18:04. Civil Dark: 19:20 - 06:08. Nautical Dark: 19:53 - 05:34. Astro Dark: 20:28 - 05:00

Total Clouds (% Sky Obscured)

63
73
79
84
52
35
33
32
25
10
0
0
0
0
0
0
0
0
0
0
0
0
1
2

Low Clouds (% Sky Obscured)

55
65
79
84
50
31
30
21
14
7
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

20
29
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

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
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 (%)

0
1
3
1
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)

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

Chance of Frost

Temperature (°C)

16
19
20
20
21
21
22
22
21
20
19
16
14
12
11
10
8
8
7
6
6
6
6
5

Feels Like (°C)

15
18
18
18
19
20
20
20
19
19
19
16
14
12
12
10
9
8
6
6
6
6
6
5

Dew Point (°C)

13
14
13
13
13
10
9
8
6
6
8
9
7
7
6
5
4
4
3
3
3
4
3
2

Relative Humidity (%)

85
72
67
64
60
50
44
41
38
39
48
62
65
69
71
72
74
75
76
79
83
85
85
82

Pressure (mb)

1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1017
1018
1019
1020
1021
1022
1022
1023
1023
1024
1025
1025
1026
1027

Ozone (du)

289
290
290
291
291
291
291
291
291
290
289
288
287
287
287
288
288
286
282
281
281
282
283
284

Saturday 20

Waning Crescent 1%

06:19

18:23

08 Good
09 Good
10 Good
11 Good
12 Good
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 Good
02 Good
03 Good
04 Good
05 Good
06 Good
07 Good

Sun - Rise: 06:37, Set: 18:50, Transit: 12:43. Moon - Rise: 06:19, Set: 18:23. Civil Dark: 19:18 - 06:09. Nautical Dark: 19:51 - 05:36. Astro Dark: 20:26 - 05:02

Total Clouds (% Sky Obscured)

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

Low 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

Medium 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

High Clouds (% Sky Obscured)

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

Chance of Frost

Temperature (°C)

8
11
13
15
17
18
19
19
19
18
16
12
10
8
8
7
6
5
4
3
3
3
3
4

Feels Like (°C)

8
10
12
14
16
17
18
19
18
17
16
12
9
8
7
6
5
4
4
3
3
3
3
4

Dew Point (°C)

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

Relative Humidity (%)

63
44
33
29
25
23
21
20
19
24
38
45
47
49
51
54
56
60
62
64
65
65
67
67

Pressure (mb)

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

Ozone (du)

285
285
285
284
283
282
280
280
280
281
281
281
282
283
283
283
284
282
280
279
280
280
281
281

Sunday 21

New Moon 0%

07:24

18:41

08 Good
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 OK
22 Good
23 Good
00 Good
01 Good
02 OK
03 OK
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 06:38, Set: 18:48, Transit: 12:43. Moon - Rise: 07:24, Set: 18:41. Civil Dark: 19:16 - 06:10. Nautical Dark: 19:50 - 05:37. Astro Dark: 20:24 - 05:03

Total Clouds (% Sky Obscured)

12
70
62
66
62
74
74
80
84
88
77
78
50
25
0
2
4
1
19
37
56
59
71
78

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
17
35
41
52
63

Medium Clouds (% Sky Obscured)

0
0
0
3
7
12
8
5
0
7
13
19
14
7
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

8
60
54
61
62
74
74
80
84
88
77
78
50
25
0
0
0
0
0
0
0
0
0
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 (%)

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)

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

Chance of Frost

Temperature (°C)

5
10
13
17
19
20
21
21
21
21
18
15
13
11
10
8
7
6
5
4
4
4
5
5

Feels Like (°C)

5
10
11
15
17
19
20
20
20
20
17
14
13
11
10
9
7
6
5
5
4
4
5
4

Dew Point (°C)

-4
-2
1
4
7
7
7
6
7
7
9
8
7
7
6
5
5
4
4
4
4
3
4
4

Relative Humidity (%)

54
45
42
44
44
42
39
37
38
40
54
63
70
75
77
79
85
90
94
96
96
96
96
96

Pressure (mb)

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

Ozone (du)

281
282
283
283
283
283
284
285
284
284
284
283
284
283
284
284
284
283
281
281
281
281
282
281

Monday 22

Waxing Crescent 1%

No Rise

18:58

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

Sun - Rise: 06:40, Set: 18:46, Transit: 12:42. Moon - Rise: No Rise, Set: 18:58. Civil Dark: 19:14 - 06:11. Nautical Dark: 19:48 - 05:38. Astro Dark: 20:22 - 05:04

Total Clouds (% Sky Obscured)

69
85
79
51
31
3
2
2
2
22
38
49
39
25
16
14
10
6
12
19
26
31
34
35

Low Clouds (% Sky Obscured)

40
21
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

27
56
79
51
29
1
1
1
2
19
32
37
13
10
7
6
6
5
11
16
22
23
28
35

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
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
1
1
1
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)

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

Chance of Frost

Temperature (°C)

7
10
14
18
19
21
23
23
23
23
20
17
14
14
13
12
12
11
10
10
9
8
9
11

Feels Like (°C)

5
9
11
15
18
20
22
22
23
23
20
18
15
15
14
14
13
13
12
11
10
9
9
10

Dew Point (°C)

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

Relative Humidity (%)

84
65
50
42
36
32
31
31
33
40
56
63
69
72
79
84
86
90
91
95
95
96
91
87

Pressure (mb)

1023
1023
1022
1021
1020
1019
1018
1018
1017
1016
1016
1016
1017
1017
1017
1017
1016
1016
1016
1016
1016
1015
1015
1015

Ozone (du)

281
281
280
279
278
277
277
276
277
276
275
274
274
274
274
273
273
273
273
273
273
273
273
273

Tuesday 23

Waxing Crescent 4%

08:28

19:17

08 OK
09 OK
10 Good
11 OK
12 OK
13 OK
14 OK
15 OK
16 OK
17 OK
18 OK
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

Sun - Rise: 06:41, Set: 18:44, Transit: 12:42. Moon - Rise: 08:28, Set: 19:17. Civil Dark: 19:13 - 06:12. Nautical Dark: 19:46 - 05:39. Astro Dark: 20:20 - 05:05

Total Clouds (% Sky Obscured)

28
20
13
18
24
34
26
18
11
16
24
30
41
46
56
68
80
96
94
91
89
84
76
70

Low Clouds (% Sky Obscured)

0
0
0
12
24
34
26
18
11
10
9
7
13
18
23
22
20
18
22
25
28
31
35
41

Medium Clouds (% Sky Obscured)

5
5
5
4
4
6
6
5
5
4
3
1
2
4
6
10
15
19
39
58
76
72
64
56

High Clouds (% Sky Obscured)

28
20
4
5
4
2
2
1
0
0
0
0
0
0
0
4
9
25
23
34
20
22
29
32

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
8
7
6
6
6
6
6
6
6
6
6
6
5
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
None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
0
4
6
8
14
15
9
16
23
33
51
59
61
62
60
59
50
50
55
48
42
39

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

2
3
4
5
5
6
8
7
6
5
4
3
2
2
3
3
3
2
2
2
2
2
1
1

Chance of Frost

Temperature (°C)

12
16
20
24
25
26
28
27
27
26
24
22
19
19
19
18
18
17
17
16
16
16
16
17

Feels Like (°C)

10
15
17
19
21
24
26
31
29
28
28
28
28
21
21
23
22
21
20
18
18
18
17
18

Dew Point (°C)

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

Relative Humidity (%)

84
69
59
50
47
46
44
46
48
50
58
67
80
85
90
96
96
96
98
100
98
98
96
98

Pressure (mb)

1016
1015
1015
1014
1014
1013
1013
1013
1012
1012
1013
1013
1014
1014
1014
1015
1015
1015
1015
1016
1016
1016
1016
1017

Ozone (du)

273
273
272
271
271
271
270
270
270
270
271
272
273
273
273
273
272
271
269
270
270
271
272
273

Wednesday 24

Waxing Crescent 8%

09:32

19:38

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: 18:42, Transit: 12:42. Moon - Rise: 09:32, Set: 19:38. Civil Dark: 19:11 - 06:13. Nautical Dark: 19:44 - 05:40. Astro Dark: 20:18 - 05:07

Total Clouds (% Sky Obscured)

66
66
63
71
78
92
90
83
83
78
73
68
67
67
65
75
87
97

Low Clouds (% Sky Obscured)

47
49
55
58
69
92
90
83
83
78
73
68
67
66
60
67
74
81

Medium Clouds (% Sky Obscured)

38
29
20
23
28
32
23
13
2
4
5
5
6
7
8
26
50
69

High Clouds (% Sky Obscured)

14
5
1
0
1
1
0
1
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

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
None
None

Precipitation Probability (%)

34
24
14
17
19
22
26
32
36
43
42
28
38
48
56
47
39
37

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
19
20
22
22
23
24
23
23
22
20
18
16
15
14
14
14
13

Feels Like (°C)

18
20
21
21
21
22
23
25
25
24
23
23
22
15
15
15
15
15

Dew Point (°C)

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

Relative Humidity (%)

96
89
81
74
72
68
65
71
76
81
86
90
95
96
96
98
98
98

Pressure (mb)

1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1020
1020
1021
1021
1021
1021
1021

Ozone (du)

275
275
275
275
273
270
268
267
267
266
267
267
268
267
266
265
264
264

Forecast for Chester, Windsor, United States of America (43.26,-72.60)

Generated: 18/09/25 07:19:35. Forecast: 18/09/25 to 24/09/25. Timezone: UTC-4.00