Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 10%

04:32

17:50

11 Bad
12 Bad
13 Bad
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
08 Good
09 Good
10 Good

Sun - Rise: 06:54, Set: 19:10, Transit: 13:02. Moon - Rise: 04:32, Set: 17:50. Civil Dark: 19:37 - 06:28. Nautical Dark: 20:08 - 05:57. Astro Dark: 20:39 - 05:25

Total Clouds (% Sky Obscured)

71
62
51
43
22
23
0
5
3
0
8
13
7
2
0
0
0
0
0
0
0
0
2
2

Low Clouds (% Sky Obscured)

63
42
51
32
22
23
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

6
2
0
0
0
0
0
1
1
0
2
2
1
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
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
56
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)

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

Chance of Frost

Temperature (°C)

23
24
25
26
28
28
28
27
24
22
20
20
19
19
19
19
19
18
18
18
17
19
22
25

Feels Like (°C)

26
27
27
28
29
29
30
30
26
24
23
23
22
21
22
21
20
20
20
20
19
21
24
27

Dew Point (°C)

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

Relative Humidity (%)

58
53
45
41
38
36
37
49
57
61
69
75
76
76
78
81
84
85
86
82
79
70
55
44

Pressure (mb)

1017
1017
1016
1016
1015
1015
1014
1014
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017

Ozone (du)

291
290
290
290
289
288
288
288
288
288
288
288
288
288
289
288
287
289
291
292
293
293
292
291

Friday 19

Waning Crescent 5%

05:37

18:16

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

Sun - Rise: 06:55, Set: 19:09, Transit: 13:01. Moon - Rise: 05:37, Set: 18:16. Civil Dark: 19:35 - 06:29. Nautical Dark: 20:06 - 05:58. Astro Dark: 20:38 - 05:26

Total Clouds (% Sky Obscured)

20
7
12
14
9
3
0
0
0
0
0
0
20
61
66
83
56
28
35
34
34
38
48
49

Low Clouds (% Sky Obscured)

0
0
0
14
9
3
0
0
0
0
0
0
0
5
5
27
19
11
9
0
0
0
10
23

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
7
18
23
38
40
21
27
29
28
30
34
32

High Clouds (% Sky Obscured)

20
7
10
3
0
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
9
10
19
13
9
6
6
6
2
1
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
1
3
3
7
5
2
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
5
5
5
5
4
3
1
1
2
3
3
2
2
2
2
3
4
5
5
6
6
8
7

Chance of Frost

Temperature (°C)

27
29
30
30
30
30
30
28
25
24
22
21
21
20
21
21
21
20
19
18
18
19
20
22

Feels Like (°C)

29
29
30
31
31
31
31
31
28
25
24
23
23
23
22
22
22
22
21
20
20
20
21
23

Dew Point (°C)

11
10
9
9
8
9
9
14
14
12
13
14
15
16
15
16
16
16
16
16
16
15
14
13

Relative Humidity (%)

36
32
28
26
25
25
27
42
48
49
54
62
70
76
69
73
74
78
81
89
90
80
65
57

Pressure (mb)

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

Ozone (du)

290
289
288
288
289
291
293
294
295
295
294
295
292
290
289
288
288
288
288
289
291
292
292
291

Saturday 20

Waning Crescent 1%

06:39

18:38

11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 OK
17 OK
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

Sun - Rise: 06:56, Set: 19:07, Transit: 13:01. Moon - Rise: 06:39, Set: 18:38. Civil Dark: 19:33 - 06:30. Nautical Dark: 20:04 - 05:59. Astro Dark: 20:36 - 05:27

Total Clouds (% Sky Obscured)

49
53
66
83
79
44
44
62
85
88
92
98
100
99
100
100
94
93
94
94
82
73
64
55

Low Clouds (% Sky Obscured)

29
33
47
68
60
42
44
46
60
66
75
78
80
85
90
90
88
85
82
75
81
73
64
55

Medium Clouds (% Sky Obscured)

29
34
38
34
26
5
0
5
10
23
32
38
38
37
37
35
28
25
29
8
1
1
1
1

High Clouds (% Sky Obscured)

0
3
3
19
31
3
0
29
65
69
67
89
98
93
99
100
80
75
68
65
7
2
2
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
1
1
4
5
2
0
2
1
20
5
1
5
0
0
0
3
1
1
0
4
8
8

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)

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

Chance of Frost

Temperature (°C)

24
25
26
27
27
27
27
25
22
21
20
19
18
18
17
17
17
17
17
17
17
18
20
21

Feels Like (°C)

25
26
27
28
28
29
28
28
24
23
22
22
19
18
18
18
18
19
19
19
18
19
20
21

Dew Point (°C)

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

Relative Humidity (%)

50
45
43
41
41
42
44
52
67
74
80
86
92
96
96
100
100
98
98
100
98
93
88
84

Pressure (mb)

1023
1023
1022
1022
1021
1021
1021
1021
1021
1022
1023
1023
1023
1023
1024
1024
1023
1023
1023
1023
1023
1024
1024
1024

Ozone (du)

292
293
292
292
291
289
288
289
289
289
289
288
287
287
287
288
288
289
289
289
289
290
291
291

Sunday 21

New Moon 0%

07:40

19:00

11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 OK
20 OK
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

Sun - Rise: 06:57, Set: 19:05, Transit: 13:01. Moon - Rise: 07:40, Set: 19:00. Civil Dark: 19:32 - 06:30. Nautical Dark: 20:03 - 06:00. Astro Dark: 20:34 - 05:28

Total Clouds (% Sky Obscured)

64
71
77
73
69
61
50
39
28
42
58
72
71
70
66
65
66
65
66
65
61
71
76
76

Low Clouds (% Sky Obscured)

58
62
65
55
50
45
38
32
26
41
57
72
71
70
66
65
66
65
66
65
61
68
58
49

Medium Clouds (% Sky Obscured)

11
20
29
29
29
27
17
9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
1
2
1
1
0
0
0
0
0
0
0
0
0
0
0
0
6
6
20
30
36
48

ISS Passover

Visibility (miles)

9
9
9
9
9
4
5
4
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 (%)

22
28
34
34
41
42
44
34
4
1
2
2
3
2
0
0
0
0
0
0
0
1
1
1

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)

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

Chance of Frost

Temperature (°C)

22
22
23
24
24
24
23
22
21
20
19
19
19
18
18
18
18
17
17
17
17
18
19
21

Feels Like (°C)

23
23
24
25
25
25
25
25
23
22
22
21
20
20
20
20
20
20
19
20
20
21
22
23

Dew Point (°C)

18
19
19
19
18
19
21
21
20
19
19
19
18
18
18
18
17
17
17
17
17
17
18
18

Relative Humidity (%)

80
79
78
74
69
71
84
89
93
96
98
98
98
98
98
100
98
98
100
100
98
96
91
81

Pressure (mb)

1024
1023
1023
1022
1022
1021
1021
1021
1021
1021
1021
1022
1022
1022
1021
1021
1021
1020
1020
1020
1020
1021
1021
1021

Ozone (du)

292
293
292
291
290
288
288
288
288
287
285
283
283
281
279
278
278
278
279
279
279
279
280
280

Monday 22

Waxing Crescent 1%

08:40

19:21

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 OK
01 OK
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:58, Set: 19:04, Transit: 13:00. Moon - Rise: 08:40, Set: 19:21. Civil Dark: 19:30 - 06:31. Nautical Dark: 20:01 - 06:00. Astro Dark: 20:32 - 05:29

Total Clouds (% Sky Obscured)

91
98
100
100
100
98
78
63
58
59
64
68
53
33
29
61
76
91
82
75
67
70
74
77

Low Clouds (% Sky Obscured)

56
64
71
53
35
19
13
11
8
18
27
37
33
29
25
48
50
57
52
47
41
40
38
36

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
3
6
10

High Clouds (% Sky Obscured)

61
83
67
62
57
81
78
63
58
50
50
40
25
7
9
45
65
87
71
51
27
9
5
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 (%)

14
6
1
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
5
6
6
5
5
5
6
5
5
4
4
4
4
4
4
4
4
3
4
5

Chance of Frost

Temperature (°C)

23
24
25
25
25
25
25
24
21
20
19
19
18
18
18
18
17
17
17
18
18
18
21
23

Feels Like (°C)

25
26
26
26
25
26
26
25
22
20
19
19
19
19
20
20
20
19
19
19
19
18
20
21

Dew Point (°C)

17
16
16
16
16
16
16
16
17
16
17
17
17
17
17
17
17
17
17
17
17
17
17
17

Relative Humidity (%)

67
60
58
57
58
58
56
61
74
80
85
88
93
96
98
98
98
96
96
96
95
92
80
70

Pressure (mb)

1021
1020
1019
1018
1018
1017
1017
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018

Ozone (du)

279
279
279
279
279
279
278
278
279
279
281
280
280
279
279
278
278
278
279
279
280
281
282
282

Tuesday 23

Waxing Crescent 4%

09:41

19:43

11 Bad
12 Bad
13 Bad
14 Bad
15 OK
16 OK
17 OK
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

Sun - Rise: 06:59, Set: 19:02, Transit: 13:00. Moon - Rise: 09:41, Set: 19:43. Civil Dark: 19:29 - 06:32. Nautical Dark: 19:59 - 06:01. Astro Dark: 20:31 - 05:30

Total Clouds (% Sky Obscured)

76
76
73
56
36
21
45
69
92
95
97
100
95
90
87
63
50
70
80
85
85
85
90
90

Low Clouds (% Sky Obscured)

37
37
36
28
20
13
10
7
4
10
16
22
27
32
38
25
12
0
1
2
3
3
3
2

Medium Clouds (% Sky Obscured)

15
19
21
25
28
21
29
37
51
48
42
29
24
22
25
44
50
70
80
85
85
85
81
74

High Clouds (% Sky Obscured)

5
5
5
5
5
10
43
64
80
87
95
100
88
77
65
43
22
15
70
75
70
55
55
30

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
1
3
4
4
11
13
5
10
17
19
25
27
24
33
37
37
33
26
12

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

Chance of Frost

Temperature (°C)

25
26
27
28
28
28
28
26
25
23
22
22
22
21
21
20
20
20
20
20
20
20
22
24

Feels Like (°C)

22
22
24
25
31
30
29
29
30
30
22
23
23
23
23
22
21
21
22
22
22
22
23
24

Dew Point (°C)

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

Relative Humidity (%)

60
54
49
44
45
47
49
56
66
75
75
76
75
81
85
89
92
93
96
95
95
93
85
79

Pressure (mb)

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

Ozone (du)

282
282
282
281
281
280
279
279
279
279
279
279
280
279
279
278
278
278
278
278
279
279
279
280

Wednesday 24

Waxing Crescent 8%

10:42

20:07

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

Sun - Rise: 06:59, Set: 19:01, Transit: 13:00. Moon - Rise: 10:42, Set: 20:07. Civil Dark: 19:27 - 06:33. Nautical Dark: 19:58 - 06:02. Astro Dark: 20:29 - 05:31

Total Clouds (% Sky Obscured)

91
89
92
91
90
86
90
88
85
73
77
81
83
87
91
93
94
93
85
73
62

Low Clouds (% Sky Obscured)

5
11
16
23
25
26
20
11
0
0
0
0
0
0
0
8
17
25
36
46
56

Medium Clouds (% Sky Obscured)

71
63
65
70
75
75
77
79
81
73
67
63
57
53
57
54
53
52
48
43
32

High Clouds (% Sky Obscured)

11
16
22
12
11
6
17
36
41
40
47
52
58
62
67
78
89
93
85
73
62

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

Precipitation Probability (%)

18
16
2
27
26
12
41
50
54
44
35
29
26
20
9
10
8
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

25
27
28
30
29
29
29
26
23
20
20
19
19
19
19
19
18
18
18
18
18

Feels Like (°C)

25
25
26
26
34
33
32
32
32
32
20
20
20
20
20
20
20
20
19
19
20

Dew Point (°C)

20
19
19
18
18
18
19
19
19
20
19
19
19
18
18
18
18
18
17
17
18

Relative Humidity (%)

72
64
56
50
51
53
54
66
79
98
98
98
98
96
96
98
96
98
96
95
96

Pressure (mb)

1019
1018
1018
1017
1017
1017
1017
1017
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

280
280
280
280
280
279
279
279
279
279
279
278
278
278
277
277
277
276
276
276
276

Forecast for Friendship Acres, Charles County, United States of America (38.44,-77.13)

Generated: 18/09/25 11:54:45. Forecast: 18/09/25 to 24/09/25. Timezone: UTC-4.00