Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 31

Waxing Gibbous 99%

18:21

06:05

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

Sun - Rise: 06:51, Set: 19:31, Transit: 13:11. Moon - Rise: 18:21, Set: 06:05. Civil Dark: 19:58 - 06:24. Nautical Dark: 20:29 - 05:52. Astro Dark: 21:02 - 05:20

Total Clouds (% Sky Obscured)

31
34
37
13
3
5
41
71
100
99
100
100
95
65
73
65
11
51
99
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
10
22
25
32
49
33
23
0
0
0
0
0
0
0
17
0

Medium Clouds (% Sky Obscured)

18
22
9
6
0
0
1
5
8
20
14
26
0
4
8
0
0
0
54
84
77
65
70
75

High Clouds (% Sky Obscured)

1
2
1
2
1
1
20
57
100
97
100
99
78
41
69
57
6
29
96
100
100
100
90
57

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
2
17
25
22
5
6
1
0
0
0
2
2
5
5
3
2

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

Chance of Frost

Temperature (°C)

16
15
15
14
16
19
22
25
26
27
27
26
25
25
25
23
22
22
21
20
20
19
18
17

Feels Like (°C)

14
14
14
13
15
18
21
22
23
24
24
24
23
22
23
21
19
19
18
17
17
16
15
15

Dew Point (°C)

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

Relative Humidity (%)

79
82
83
82
75
68
61
59
55
54
53
51
52
56
60
62
61
64
67
68
71
71
74
76

Pressure (mb)

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

Ozone (du)

319
318
318
319
318
317
317
317
319
318
318
320
323
324
324
323
323
322
322
322
322
323
321
322

Wednesday 1

Full Moon 100%

19:25

06:27

05 Bad
06 OK
07 Bad
08 Good
09 Good
10 OK
11 Good
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

Sun - Rise: 06:50, Set: 19:32, Transit: 13:11. Moon - Rise: 19:25, Set: 06:27. Civil Dark: 19:59 - 06:23. Nautical Dark: 20:31 - 05:51. Astro Dark: 21:04 - 05:18

Total Clouds (% Sky Obscured)

66
23
55
12
13
19
3
52
80
76
99
99
100
89
96
99
88
66
97
97
95
99
74
86

Low Clouds (% Sky Obscured)

0
0
6
1
0
0
0
19
45
40
55
58
57
33
22
38
20
45
44
51
59
68
68
85

Medium Clouds (% Sky Obscured)

34
5
13
8
6
19
2
12
10
18
13
12
21
25
61
70
57
46
61
77
52
70
41
33

High Clouds (% Sky Obscured)

66
15
36
4
13
3
2
24
63
62
92
59
100
82
95
73
70
66
97
95
41
99
67
84

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
3
6
4
6
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
55
100
100

Precipitation Type

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

Precipitation Probability (%)

3
1
2
1
1
0
2
25
28
29
38
29
46
23
43
80
95
95
95
95
95
81
56
32

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.6
1
1.1
1.2
0.9
0.5
0.3
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
16
15
16
18
21
25
27
28
28
27
27
27
25
24
22
21
20
19
18
18
18
17
17

Feels Like (°C)

14
14
15
16
18
21
24
27
28
28
27
27
28
26
25
23
22
22
20
18
18
18
18
18

Dew Point (°C)

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

Relative Humidity (%)

78
83
87
86
77
69
63
58
54
51
46
54
59
59
61
66
84
91
92
92
95
96
96
96

Pressure (mb)

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

Ozone (du)

324
326
324
325
325
324
325
326
327
326
326
327
326
325
328
329
332
331
329
329
330
329
328
327

Thursday 2

Waning Gibbous 99%

20:28

06:49

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 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 06:48, Set: 19:33, Transit: 13:10. Moon - Rise: 20:28, Set: 06:49. Civil Dark: 20:00 - 06:21. Nautical Dark: 20:32 - 05:49. Astro Dark: 21:05 - 05:16

Total Clouds (% Sky Obscured)

84
84
96
100
99
97
93
91
92
84
72
73
56
59
56
58
63
81
64
49
56
55
60
74

Low Clouds (% Sky Obscured)

83
82
96
95
97
91
82
76
78
73
65
64
47
54
48
31
44
52
47
45
56
53
60
74

Medium Clouds (% Sky Obscured)

23
17
25
25
28
32
38
21
12
7
0
0
7
24
19
21
22
23
15
0
0
1
3
5

High Clouds (% Sky Obscured)

10
1
1
28
30
25
30
30
30
13
25
9
7
5
2
4
6
19
20
17
13
11
10
8

ISS Passover

Visibility (miles)

9
5
4
4
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

100
100
100
100
94
0
0
1
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
0
1
0
0
0
0
0
4
13
28
9
6
1
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
5
5
5
8
8
9
9
10
11
11
12
11
10
9
9
10
11
10
8
8
7
7
7

Chance of Frost

Temperature (°C)

17
16
15
16
15
15
16
17
18
19
19
19
20
19
18
16
15
15
14
14
13
13
13
13

Feels Like (°C)

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

Dew Point (°C)

16
16
15
15
14
12
11
10
9
8
8
8
8
9
9
8
9
8
5
5
5
6
7
9

Relative Humidity (%)

98
100
98
96
89
82
73
64
54
49
47
47
47
49
56
60
67
63
53
57
59
62
70
79

Pressure (mb)

1022
1022
1023
1024
1024
1025
1025
1025
1025
1025
1024
1023
1023
1023
1024
1024
1025
1025
1025
1025
1025
1025
1025
1025

Ozone (du)

327
328
328
329
328
325
324
322
321
321
321
322
322
321
320
318
318
319
319
319
319
320
320
321

Friday 3

Waning Gibbous 95%

21:32

07:12

05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 OK
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

Sun - Rise: 06:47, Set: 19:34, Transit: 13:10. Moon - Rise: 21:32, Set: 07:12. Civil Dark: 20:01 - 06:20. Nautical Dark: 20:33 - 05:47. Astro Dark: 21:06 - 05:14

Total Clouds (% Sky Obscured)

79
79
80
67
57
44
45
56
70
60
46
44
55
65
76
75
91
64
62
62
69
82
81
82

Low Clouds (% Sky Obscured)

79
79
80
67
57
44
45
45
44
36
28
20
14
7
0
9
22
26
18
9
0
0
0
0

Medium Clouds (% Sky Obscured)

3
2
0
0
0
0
12
27
38
27
13
2
34
41
60
45
70
48
36
22
7
14
21
29

High Clouds (% Sky Obscured)

6
3
0
0
0
0
0
0
0
40
40
44
47
63
73
60
46
39
33
33
40
46
42
36

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
2
8
22
22
9
7
11
29
34
16
9
4
4
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)

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

Chance of Frost

Temperature (°C)

13
13
13
14
17
19
21
23
25
26
27
27
27
25
24
23
22
21
20
19
19
18
18
17

Feels Like (°C)

13
13
13
15
16
18
20
23
24
24
24
25
25
24
23
22
21
21
21
21
20
20
19
19

Dew Point (°C)

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

Relative Humidity (%)

84
89
89
86
79
73
66
59
55
53
50
54
56
62
65
69
74
76
85
88
90
93
92
93

Pressure (mb)

1025
1025
1025
1026
1025
1025
1025
1024
1024
1023
1022
1022
1021
1021
1021
1022
1022
1022
1023
1023
1023
1022
1022
1022

Ozone (du)

322
323
324
323
322
322
322
322
323
324
321
322
325
326
329
330
331
333
333
333
333
334
334
333

Saturday 4

Waning Gibbous 90%

22:35

07:39

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 OK
19 OK
20 OK
21 OK
22 OK
23 OK
00 OK
01 OK
02 OK
03 OK
04 OK

Sun - Rise: 06:45, Set: 19:35, Transit: 13:10. Moon - Rise: 22:35, Set: 07:39. Civil Dark: 20:02 - 06:18. Nautical Dark: 20:34 - 05:46. Astro Dark: 21:07 - 05:12

Total Clouds (% Sky Obscured)

94
89
87
82
74
80
96
85
88
85
84
62
59
22
9
22
34
41
36
38
40
31
24
15

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
1
2
3
20
39
57
38
19
0
0
0
0
10
20
30
20
10
0

Medium Clouds (% Sky Obscured)

34
35
32
36
42
46
40
39
36
26
14
2
1
1
0
11
21
29
26
24
21
15
10
4

High Clouds (% Sky Obscured)

74
42
38
34
34
58
94
78
86
80
79
22
48
9
9
22
34
41
36
38
40
31
24
15

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 (%)

2
4
2
4
4
2
1
1
0
4
8
11
12
14
11
13
12
2
7
6
0
0
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)

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

Chance of Frost

Temperature (°C)

17
17
16
17
19
21
23
24
26
27
28
28
28
26
25
24
23
22
21
21
21
20
20
19

Feels Like (°C)

19
17
18
19
20
22
23
24
25
26
26
26
27
25
24
23
22
21
21
21
20
20
17
17

Dew Point (°C)

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

Relative Humidity (%)

93
93
95
92
84
76
67
61
54
48
46
48
50
51
53
52
52
52
52
56
60
65
68
71

Pressure (mb)

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

Ozone (du)

330
327
325
323
318
320
317
317
315
314
315
316
316
315
315
315
314
312
310
310
310
310
310
310

Sunday 5

Waning Gibbous 84%

23:38

08:09

05 OK
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 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 06:44, Set: 19:35, Transit: 13:10. Moon - Rise: 23:38, Set: 08:09. Civil Dark: 20:03 - 06:16. Nautical Dark: 20:35 - 05:44. Astro Dark: 21:08 - 05:11

Total Clouds (% Sky Obscured)

27
48
69
72
77
80
82
83
73
71
69
77
84
91
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

9
17
26
29
32
35
33
44
60
67
69
74
58
37
29
43
56
70
78
86
94
79
64
51

Medium Clouds (% Sky Obscured)

2
1
0
2
4
7
24
31
23
26
43
46
58
78
100
100
100
100
100
100
100
99
99
98

High Clouds (% Sky Obscured)

27
47
54
43
37
35
31
23
25
20
21
21
25
20
15
40
65
97
96
96
95
96
98
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
7
4
2
4
7
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
1
1
53
85
95
95
95
87
72
52
27
47
65
79
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.6
1.3
0.8
0.7
0.5
0.4
0
0
0
0
0.2
0.8
0.9
1.2
1.2
0.9
0.7

Wind Speed/Direction (mph)

12
12
12
12
13
14
16
14
15
17
17
16
16
15
14
12
11
9
8
8
8
10
9
9

Chance of Frost

Temperature (°C)

19
19
19
18
20
21
23
20
18
15
14
13
12
11
10
10
9
8
8
7
6
6
5
5

Feels Like (°C)

17
17
17
17
16
16
17
18
19
19
10
10
9
9
9
9
5
4
4
4
3
3
1
1

Dew Point (°C)

14
14
14
14
15
14
15
15
14
13
12
11
10
8
7
6
4
4
3
2
1
0
-1
-2

Relative Humidity (%)

73
75
76
76
71
65
60
70
79
92
90
89
87
84
80
77
73
71
69
69
67
67
65
63

Pressure (mb)

1014
1014
1014
1014
1014
1013
1013
1012
1012
1012
1011
1011
1010
1011
1011
1011
1012
1012
1013
1013
1014
1015
1015
1015

Ozone (du)

310
310
310
310
309
308
307
308
308
308
311
313
315
314
313
311
311
310
309
309
309
309
313
316

Monday 6

Waning Gibbous 76%

00:37

08:46

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

Sun - Rise: 06:42, Set: 19:36, Transit: 13:09. Moon - Rise: 00:37, Set: 08:46. Civil Dark: 20:04 - 06:15. Nautical Dark: 20:36 - 05:42. Astro Dark: 21:10 - 05:09

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
83
67
49
35
22
19
24
31
36
29
21
16
14
10
6

Low Clouds (% Sky Obscured)

39
27
14
15
15
18
20
21
24
25
22
19
15
7
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

65
33
5
3
5
0
0
0
0
0
0
0
4
4
6
11
16
16
14
10
6

High Clouds (% Sky Obscured)

100
100
100
100
100
100
67
33
0
0
0
0
0
0
0
0
0
1
1
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

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

84
63
30
22
11
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.5
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

1
0
-1
-0
-2
-1
-1
-1
-0
1
7
8
8
8
9
9
6
6
6
6
6

Dew Point (°C)

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

Relative Humidity (%)

62
63
64
65
61
56
50
48
45
43
42
42
42
47
53
59
57
56
56
58
59

Pressure (mb)

1015
1016
1017
1018
1018
1019
1019
1019
1018
1018
1018
1018
1018
1019
1019
1020
1021
1022
1023
1023
1024

Ozone (du)

319
322
325
327
331
334
338
341
344
347
349
352
355
357
359
361
365
370
374
371
368

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

Generated: 31/03/26 05:40:00. Forecast: 31/03/26 to 06/04/26. Timezone: UTC-4.00