Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 29

Waxing Crescent 6%

06:56

22:52

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

Sun - Rise: 06:02, Set: 19:55, Transit: 12:58. Moon - Rise: 06:56, Set: 22:52. Civil Dark: 20:24 - 05:32. Nautical Dark: 21:00 - 04:57. Astro Dark: 21:38 - 04:18

Total Clouds (% Sky Obscured)

54
51
60
52
34
30
45
49
31
52
38
62
46
89
88
100
96
100
100
100
100
80
56
54

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
1
0
3
2
0
0
0
0
0
0
0
0
0
22
27

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
15
6
14
17
13
0
0
0
0
0
0
0
17
17
17
4

High Clouds (% Sky Obscured)

41
47
47
48
34
24
35
34
13
46
17
32
28
88
87
100
96
100
100
100
100
60
16
38

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
2
3
3
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
3
3
7
7
8
8
8
10
12
12
12
13
13
13
13
13
13
14
13
12
12
12
12

Chance of Frost

Temperature (°C)

13
12
11
11
10
10
11
13
15
18
20
22
23
24
25
25
25
24
23
22
21
21
20
20

Feels Like (°C)

11
9
7
9
7
7
8
10
12
15
16
19
20
22
23
23
22
22
20
19
18
18
19
19

Dew Point (°C)

5
3
1
3
4
4
6
6
7
8
9
10
11
12
13
13
14
14
14
13
13
13
13
14

Relative Humidity (%)

57
53
51
55
62
66
67
63
58
53
48
45
45
46
46
46
49
52
55
57
60
63
65
68

Pressure (mb)

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

Ozone (du)

341
338
337
335
335
335
336
336
336
335
334
333
333
333
332
330
328
326
323
321
319
318
318
318

Wednesday 30

Waxing Crescent 13%

07:48

00:03

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

Sun - Rise: 06:00, Set: 19:56, Transit: 12:58. Moon - Rise: 07:48, Set: 00:03. Civil Dark: 20:25 - 05:31. Nautical Dark: 21:01 - 04:55. Astro Dark: 21:40 - 04:17

Total Clouds (% Sky Obscured)

82
75
93
94
93
97
81
66
42
25
23
52
33
38
34
65
74
87
57
67
54
33
56
23

Low Clouds (% Sky Obscured)

22
28
36
52
67
69
26
11
7
17
16
14
3
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

47
59
6
20
15
24
30
41
21
2
0
35
5
5
4
7
3
3
3
0
0
0
0
2

High Clouds (% Sky Obscured)

65
52
81
33
45
8
3
3
2
5
8
35
30
34
30
62
69
85
57
64
54
31
50
23

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
17
18
17
17
16
14
14
15
16
17
18
17
19
19
21
20
20
19
18
14
12
13
10

Dew Point (°C)

14
14
14
14
15
14
10
10
9
8
7
6
5
5
5
5
5
6
9
7
5
4
3
3

Relative Humidity (%)

70
73
75
77
80
81
63
61
58
50
44
39
35
32
31
30
30
34
46
50
49
47
49
51

Pressure (mb)

1014
1014
1014
1014
1014
1015
1016
1017
1018
1018
1019
1018
1018
1018
1018
1017
1018
1018
1018
1019
1020
1020
1020
1021

Ozone (du)

317
316
316
317
316
317
318
318
318
317
317
317
316
315
315
314
313
314
313
313
313
313
313
314

Thursday 1

Waxing Crescent 23%

08:49

01:01

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

Sun - Rise: 05:59, Set: 19:57, Transit: 12:58. Moon - Rise: 08:49, Set: 01:01. Civil Dark: 20:26 - 05:30. Nautical Dark: 21:02 - 04:54. Astro Dark: 21:41 - 04:15

Total Clouds (% Sky Obscured)

79
28
30
44
51
62
83
59
39
45
84
83
98
94
94
84
76
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
1
1
18
0
0
5
45
61
71
74
64
62
75
60
65
60
64
73
79
80

Medium Clouds (% Sky Obscured)

1
6
2
23
25
36
52
50
14
10
14
23
87
6
81
14
31
35
77
66
82
93
89
86

High Clouds (% Sky Obscured)

76
19
30
22
30
36
33
20
11
4
35
29
72
78
82
28
18
100
100
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
8
2
7

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
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
13
93
92
89

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.8
0.6
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

12
11
11
10
10
9
10
12
14
17
18
19
20
22
23
23
22
21
19
18
17
16
15
15

Feels Like (°C)

11
9
8
8
7
6
8
9
12
15
15
17
17
19
20
21
19
18
17
15
14
14
14
15

Dew Point (°C)

2
2
2
1
1
1
1
1
2
2
4
5
7
8
9
9
10
10
10
9
10
11
14
14

Relative Humidity (%)

52
53
54
53
54
54
53
47
42
38
37
39
42
41
40
41
44
51
55
56
62
69
90
95

Pressure (mb)

1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1021
1020
1019
1018
1018
1016
1016
1016
1015
1016
1015
1015
1015
1015

Ozone (du)

313
312
311
312
312
312
312
311
310
311
311
312
312
311
311
310
308
307
306
307
308
309
311
312

Friday 2

Waxing Crescent 33%

09:58

01:01

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 05:58, Set: 19:58, Transit: 12:58. Moon - Rise: 09:58, Set: 01:01. Civil Dark: 20:27 - 05:28. Nautical Dark: 21:03 - 04:52. Astro Dark: 21:43 - 04:13

Total Clouds (% Sky Obscured)

100
95
91
87
90
91
91
93
94
91
64
78
100
100
100
99
84
69
49
74
40
64
83
90

Low Clouds (% Sky Obscured)

81
78
78
81
77
70
61
59
39
30
21
23
43
57
50
65
52
36
20
28
36
44
29
15

Medium Clouds (% Sky Obscured)

83
73
65
60
64
80
35
39
34
32
31
25
26
59
54
73
51
30
14
36
40
64
79
74

High Clouds (% Sky Obscured)

100
75
49
24
24
28
31
28
24
22
31
58
97
84
100
99
83
69
49
71
23
21
44
42

ISS Passover

Visibility (miles)

2
0
0
0
0
0
0
9
9
9
9
9
4
5
5
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

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

Precipitation Probability (%)

76
59
33
13
38
26
2
9
21
11
16
43
65
66
62
66
78
78
61
40
25
9
12
11

Precipitation Amount (mm)

0.6
0.2
0
0
0.2
0
0
0
0
0
0
0
0.4
0.3
0.2
0.2
0.4
0.5
0.3
0
0
0
0
0

Wind Speed/Direction (mph)

6
5
4
5
6
5
5
6
8
10
11
11
13
13
12
12
12
11
8
5
4
3
3
4

Chance of Frost

Temperature (°C)

15
15
15
15
15
16
16
17
19
21
23
25
26
25
24
24
24
23
22
20
20
19
18
17

Feels Like (°C)

15
15
15
16
15
16
16
17
18
20
21
25
25
24
23
23
23
22
21
21
20
21
20
18

Dew Point (°C)

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

Relative Humidity (%)

98
98
98
98
98
100
98
95
89
79
67
60
59
71
78
68
62
67
68
76
77
77
78
79

Pressure (mb)

1014
1013
1012
1012
1011
1011
1011
1011
1010
1010
1009
1009
1008
1008
1007
1007
1007
1007
1008
1008
1009
1009
1010
1010

Ozone (du)

312
311
312
314
315
314
315
316
318
322
323
324
324
326
327
328
328
329
331
330
331
326
326
323

Saturday 3

Waxing Crescent 44%

11:09

01:47

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 OK

Sun - Rise: 05:57, Set: 19:59, Transit: 12:58. Moon - Rise: 11:09, Set: 01:47. Civil Dark: 20:28 - 05:27. Nautical Dark: 21:05 - 04:51. Astro Dark: 21:44 - 04:12

Total Clouds (% Sky Obscured)

85
84
86
100
89
79
74
73
83
84
90
91
95
100
100
100
90
71
70
80
75
64
46
31

Low Clouds (% Sky Obscured)

0
0
0
0
0
5
4
17
28
30
32
34
40
78
68
57
47
38
29
34
55
64
46
25

Medium Clouds (% Sky Obscured)

74
71
73
51
76
74
68
56
50
35
37
43
46
100
98
97
72
48
27
23
16
31
29
31

High Clouds (% Sky Obscured)

3
19
43
100
88
79
65
58
54
70
65
75
80
100
100
100
90
71
65
37
10
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
5
2
4
6
8
4
6
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

6
9
12
14
16
19
43
81
95
95
95
87
95
95
95
95
77
49
13
16
17
16
17
19

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.3
1.4
1.7
0.7
0.3
1
1.4
1.2
0.7
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
17
17
16
15
15
14
14
13
13
13
14
14
14
12
12
11
11
10
10
7
7
7
6

Dew Point (°C)

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

Relative Humidity (%)

77
76
77
79
78
78
78
83
87
93
95
95
92
95
92
88
87
83
80
76
76
75
74
73

Pressure (mb)

1010
1009
1009
1009
1010
1010
1010
1011
1011
1012
1012
1012
1012
1011
1011
1011
1011
1012
1013
1013
1014
1014
1015
1015

Ozone (du)

320
319
316
318
318
321
322
322
322
322
325
326
331
334
337
340
342
349
355
362
370
377
385
382

Sunday 4

First Quarter 54%

12:18

02:22

01 OK
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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 OK
23 OK
00 OK

Sun - Rise: 05:56, Set: 20:00, Transit: 12:58. Moon - Rise: 12:18, Set: 02:22. Civil Dark: 20:29 - 05:26. Nautical Dark: 21:06 - 04:50. Astro Dark: 21:46 - 04:10

Total Clouds (% Sky Obscured)

25
32
51
85
90
100
95
100
97
97
94
84
60
66
49
53
67
82
100
72
45
17
26
33

Low Clouds (% Sky Obscured)

1
8
19
29
51
70
89
86
84
81
83
84
60
66
49
53
49
34
8
8
8
7
13
19

Medium Clouds (% Sky Obscured)

25
32
51
85
90
100
95
100
97
96
41
14
5
0
0
0
17
34
51
35
22
10
13
11

High Clouds (% Sky Obscured)

0
0
0
0
33
67
95
100
97
84
60
33
10
17
24
37
58
79
100
67
34
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
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

19
30
35
39
65
76
80
95
95
95
95
95
95
95
95
95
95
77
53
30
16
8
6
4

Precipitation Amount (mm)

0
0
0
0
0.3
0.4
0.4
0.9
1.2
1.2
1.3
1.9
2.6
1.9
1.4
1.1
0.8
0.5
0.3
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

8
7
7
7
7
8
8
9
10
11
12
14
15
17
17
17
18
16
15
14
13
12
12
11

Feels Like (°C)

7
6
4
5
6
6
5
5
6
6
6
6
6
8
15
15
15
15
15
15
11
11
12
12

Dew Point (°C)

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

Relative Humidity (%)

71
67
69
70
71
65
61
56
47
40
35
36
35
36
37
39
40
47
55
64
66
70
73
73

Pressure (mb)

1016
1016
1016
1017
1017
1018
1018
1019
1019
1019
1020
1020
1019
1019
1019
1019
1019
1020
1020
1020
1021
1021
1021
1022

Ozone (du)

378
374
371
367
364
365
365
366
367
368
369
366
364
361
359
358
357
357
357
358
359
359
360
359

Monday 5

Waxing Gibbous 65%

13:25

02:51

Sun - Rise: 05:54, Set: 20:01, Transit: 12:58. Moon - Rise: 13:25, Set: 02:51. Civil Dark: 20:31 - 05:25. Nautical Dark: 21:07 - 04:48. Astro Dark: 21:47 - 04:08

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Washington Park, Montgomery County, United States of America (40.10,-75.38)

Generated: 29/04/25 01:25:11. Forecast: 29/04/25 to 05/05/25. Timezone: UTC-4.00