Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 24

Waxing Crescent 21%

10:58

21:23

12 OK
13 Good
14 OK
15 OK
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

Sun - Rise: 07:26, Set: 16:49, Transit: 12:07. Moon - Rise: 10:58, Set: 21:23. Civil Dark: 17:19 - 06:55. Nautical Dark: 17:53 - 06:22. Astro Dark: 18:26 - 05:49

Total Clouds (% Sky Obscured)

17
14
24
36
61
54
82
99
99
100
97
100
100
100
100
100
100
88
83
86
95
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
3
3
16
3
4
2
3
0
2
5
55
69
87
93
100
100

Medium Clouds (% Sky Obscured)

0
0
0
0
0
6
10
88
88
95
52
100
100
100
98
78
100
77
24
47
29
28
94
51

High Clouds (% Sky Obscured)

2
4
18
36
52
43
76
98
97
100
90
89
99
100
100
69
41
34
9
0
0
0
3
28

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
Light Rain
Light Rain
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
7
14
42
33
64
61
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
0.4
0.4
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

10
10
10
9
8
6
5
4
3
3
3
3
3
2
2
1
1
1
1
1
1
2
2
3

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

47
43
42
45
52
57
59
60
58
60
58
62
63
65
65
67
70
69
71
61
70
77
80
83

Pressure (mb)

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

Ozone (du)

279
276
276
275
274
276
278
274
273
275
277
281
284
285
288
289
291
293
294
299
304
302
301
300

Thursday 25

Waxing Crescent 30%

11:21

22:29

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

Sun - Rise: 07:26, Set: 16:50, Transit: 12:08. Moon - Rise: 11:21, Set: 22:29. Civil Dark: 17:20 - 06:56. Nautical Dark: 17:54 - 06:22. Astro Dark: 18:26 - 05:49

Total Clouds (% Sky Obscured)

93
96
89
58
62
95
62
47
14
11
8
5
6
34
62
55
54
82
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

71
59
43
3
1
0
0
0
0
2
2
0
0
0
0
0
0
0
0
0
0
0
29
92

Medium Clouds (% Sky Obscured)

16
9
8
0
0
0
3
3
3
3
1
0
2
6
40
30
30
30
52
91
89
100
68
94

High Clouds (% Sky Obscured)

30
55
68
58
62
95
62
45
9
5
5
5
3
26
39
23
12
74
98
100
100
100
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
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
3
4
0
5

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

Chance of Frost

Temperature (°C)

3
4
5
7
7
6
5
4
4
3
1
1
0
-1
-1
-2
-3
-3
-3
-3
-3
-3
-2
-1

Feels Like (°C)

0
1
1
3
4
2
1
0
-0
1
-1
-2
-3
-3
-5
-7
-8
-8
-8
-9
-8
-7
-6
-6

Dew Point (°C)

1
0
1
2
3
3
1
0
-2
-2
-3
-4
-5
-5
-7
-10
-11
-11
-12
-13
-14
-15
-16
-16

Relative Humidity (%)

86
75
74
72
76
79
78
76
67
72
76
74
70
71
64
55
53
51
49
46
42
37
32
30

Pressure (mb)

1015
1014
1014
1015
1015
1016
1018
1019
1020
1021
1022
1023
1023
1023
1023
1024
1023
1024
1024
1024
1025
1024
1024
1024

Ozone (du)

301
301
302
303
302
300
300
302
302
302
300
299
297
292
291
289
285
283
284
285
284
284
282
281

Friday 26

Waxing Crescent 41%

11:44

23:35

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
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:26, Set: 16:51, Transit: 12:08. Moon - Rise: 11:44, Set: 23:35. Civil Dark: 17:21 - 06:56. Nautical Dark: 17:54 - 06:22. Astro Dark: 18:27 - 05:50

Total Clouds (% Sky Obscured)

100
100
100
100
98
100
100
100
98
94
96
95
96
93
100
99
100
100
100
100
100
100
99
98

Low Clouds (% Sky Obscured)

95
88
100
91
77
80
85
93
97
92
95
94
92
93
100
99
100
100
100
100
100
100
99
98

Medium Clouds (% Sky Obscured)

100
95
100
100
95
100
100
100
88
65
72
59
50
44
3
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
29
55
20
28
40
34
44
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
2
2
5
1
1
0
0
0
0
0
0
0
0
0
0
0
0
1
0

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

Snow
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Ice pellet
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Very Light Rain
Frozen rai
Frozen rai
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

51
70
95
95
95
95
95
95
95
89
64
58
54
24
5
26
30
29
9
7
21
8
18
6

Precipitation Amount (mm)

0.2
0.4
1.4
1.6
1.2
1.1
1.1
1.5
0.8
0.5
0.3
0.3
0.2
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-1
-1
-1
-2
-2
-2
-2
-1
-1
0
0
0
0
1
1
1
1
1
1
1
1
1
1
2

Feels Like (°C)

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

Dew Point (°C)

-16
-13
-12
-8
-5
-4
-3
-2
-1
-0
-0
-0
0
1
1
1
1
1
1
1
1
1
1
2

Relative Humidity (%)

31
40
44
62
78
87
92
94
96
98
98
98
98
100
100
100
100
100
100
100
100
100
100
100

Pressure (mb)

1022
1020
1020
1018
1018
1016
1016
1015
1014
1014
1013
1012
1011
1011
1011
1012
1012
1012
1014
1015
1016
1017
1018
1019

Ozone (du)

282
282
278
280
282
282
288
294
296
299
301
307
310
310
307
307
307
305
305
304
305
303
304
305

Saturday 27

First Quarter 52%

No Rise

00:44

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
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:26, Set: 16:51, Transit: 12:09. Moon - Rise: No Rise, Set: 00:44. Civil Dark: 17:21 - 06:56. Nautical Dark: 17:55 - 06:23. Astro Dark: 18:28 - 05:50

Total Clouds (% Sky Obscured)

98
95
92
89
92
93
95
97
98
100
100
97
98
100
100
100
100
100
100
100
100
99
99
100

Low Clouds (% Sky Obscured)

97
94
91
87
90
92
95
96
98
100
100
97
97
100
100
100
100
100
100
100
99
99
97
94

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
6
13
19
24
29
35
40
43
54
57
61
60
70
73
83
85
79

High Clouds (% Sky Obscured)

0
5
10
15
13
14
12
10
9
6
11
12
71
85
33
58
91
82
65
62
67
68
76
89

ISS Passover

Visibility (miles)

0
0
0
1
1
1
1
1
2
4
9
9
9
7
7
5
4
7
9
9
9
9
9
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
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

8
9
14
6
14
6
3
7
5
2
11
12
17
14
14
13
10
9
4
2
3
0
4
7

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

Chance of Frost

Temperature (°C)

2
2
2
1
1
1
-0
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
0
1
1

Feels Like (°C)

-2
-2
-2
-3
-3
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-3
-3

Dew Point (°C)

2
2
1
1
0
0
-1
-1
-1
-1
-1
-1
-1
-2
-2
-1
-1
-1
-1
-1
-1
-1
0
1

Relative Humidity (%)

100
100
98
96
96
96
96
94
94
96
96
96
98
98
96
96
96
96
96
96
94
94
96
98

Pressure (mb)

1019
1019
1020
1021
1021
1022
1023
1024
1024
1025
1025
1025
1025
1025
1025
1025
1025
1024
1024
1024
1024
1024
1024
1023

Ozone (du)

304
306
304
302
301
300
300
299
298
295
295
295
296
296
297
298
297
296
295
295
296
296
296
298

Sunday 28

Waxing Gibbous 63%

12:09

01:56

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
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:27, Set: 16:52, Transit: 12:09. Moon - Rise: 12:09, Set: 01:56. Civil Dark: 17:22 - 06:57. Nautical Dark: 17:56 - 06:23. Astro Dark: 18:28 - 05:50

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
99
97
96
84
79
72
77
83
87
82
80
80
76
76

Low Clouds (% Sky Obscured)

92
90
87
86
86
87
87
84
80
77
80
84
87
56
43
30
41
53
64
49
50
68
58
48

Medium Clouds (% Sky Obscured)

100
99
99
98
98
98
98
94
93
91
71
52
33
84
79
72
77
83
87
82
80
55
50
49

High Clouds (% Sky Obscured)

99
100
100
100
99
99
98
52
73
100
90
80
70
84
79
72
75
70
65
40
20
10
0
0

ISS Passover

Visibility (miles)

4
0
2
4
1
1
0
1
0
0
0
1
9
9
9
9
9
9
8
8
8
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
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

11
38
47
47
49
95
94
85
86
57
12
22
36
42
36
28
30
36
43
43
40
31
27
19

Precipitation Amount (mm)

0
0
0
0
0
1.1
0.5
0.5
0.4
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
6
6
6
6
6
7
6
8
8
9
9
9
10
11
14
16
15
14
13
14
14
16
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-2
-1
-1
-0
-0
-1
-1
1
0
1
1
1
2
2
2
2
2
2
1
1
3
3
3
4

Dew Point (°C)

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

Relative Humidity (%)

96
98
98
98
98
98
100
100
98
98
100
98
96
94
94
94
94
96
94
96
93
91
90
87

Pressure (mb)

1021
1020
1019
1019
1018
1017
1016
1015
1014
1013
1011
1009
1008
1006
1002
1002
1001
1002
1002
1002
1003
1003
1003
1004

Ozone (du)

300
299
299
296
294
293
292
292
290
286
285
283
283
281
280
279
278
277
276
275
277
278
279
280

Monday 29

Waxing Gibbous 74%

12:37

03:12

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

Sun - Rise: 07:27, Set: 16:53, Transit: 12:10. Moon - Rise: 12:37, Set: 03:12. Civil Dark: 17:23 - 06:57. Nautical Dark: 17:56 - 06:23. Astro Dark: 18:29 - 05:51

Total Clouds (% Sky Obscured)

64
61
40
37
34
31
28
31
34
37
25
12
0
1
1
2
8
13
18
33
49
65
45
26

Low Clouds (% Sky Obscured)

35
27
25
26
27
28
28
31
34
37
25
12
0
0
0
0
4
8
8
25
45
64
45
26

Medium Clouds (% Sky Obscured)

24
9
17
8
5
3
0
0
0
0
0
0
0
0
0
0
1
1
2
1
1
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
7
10
6
3
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 (%)

12
11
7
0
1
1
1
2
2
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)

17
17
17
17
17
17
17
17
17
17
17
16
16
15
15
15
15
15
15
15
15
16
16
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
6
-0
-1
-3
-2
-2
-3
-8
-8
-9
-9
-9
-10
-10
-10
-10
-10
-10
-10
-11
-11
-11
-10

Dew Point (°C)

3
1
0
-2
-4
-5
-6
-7
-8
-9
-10
-11
-11
-11
-11
-12
-12
-12
-12
-12
-12
-12
-13
-12

Relative Humidity (%)

82
76
73
69
64
65
64
63
61
60
58
58
57
57
55
54
53
53
52
53
50
48
46
43

Pressure (mb)

1004
1004
1005
1005
1006
1007
1008
1009
1009
1010
1010
1010
1011
1011
1012
1012
1012
1013
1014
1015
1015
1016
1017
1017

Ozone (du)

282
284
287
290
294
296
298
301
311
321
330
334
338
341
351
361
372
379
386
393
389
384
380
374

Tuesday 30

Waxing Gibbous 84%

13:12

04:30

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

Sun - Rise: 07:27, Set: 16:54, Transit: 12:10. Moon - Rise: 13:12, Set: 04:30. Civil Dark: 17:24 - 06:57. Nautical Dark: 17:57 - 06:23. Astro Dark: 18:30 - 05:51

Total Clouds (% Sky Obscured)

7
18
29
39
37
39
35
32
27
23
19
45
65
82
91
95
93
91
91

Low Clouds (% Sky Obscured)

7
17
15
12
7
2
0
0
0
0
0
0
2
14
21
27
20
13
5

Medium Clouds (% Sky Obscured)

0
5
11
16
7
7
7
19
25
23
19
30
42
48
62
79
78
78
84

High Clouds (% Sky Obscured)

0
18
29
39
37
29
15
13
15
20
19
34
15
7
3
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

Fog (%)

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

Precipitation Probability (%)

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

Wind Speed/Direction (mph)

16
16
15
13
12
11
10
9
8
8
8
7
7
6
6
6
6
6
6

Chance of Frost

Temperature (°C)

-1
-0
-0
-1
-1
-1
-2
-2
-2
-3
-3
-3
-2
-2
-2
-3
-3
-3
-3

Feels Like (°C)

-11
-10
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-8
-7
-7
-7
-7

Dew Point (°C)

-13
-13
-13
-12
-12
-12
-11
-11
-11
-12
-12
-12
-12
-12
-12
-12
-11
-11
-11

Relative Humidity (%)

40
38
39
40
41
44
48
51
51
49
49
48
48
48
48
49
51
51
51

Pressure (mb)

1017
1017
1017
1017
1018
1018
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

368
362
367
372
376
373
370
367
367
367
367
360
354
347
340
333
326
322
317

Forecast for Marriottsville, Howard, United States of America (39.35,-76.90)

Generated: 24/12/25 12:13:10. Forecast: 24/12/25 to 30/12/25. Timezone: UTC-5.00