Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 14

Waning Crescent 11%

04:50

16:39

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

Sun - Rise: 06:23, Set: 19:39, Transit: 13:01. Moon - Rise: 04:50, Set: 16:39. Civil Dark: 20:07 - 05:55. Nautical Dark: 20:40 - 05:22. Astro Dark: 21:15 - 04:46

Total Clouds (% Sky Obscured)

44
38
57
47
47
33
37
57
72
86
57
92
39
54
92
64
7
22
28
40
40
61
56
79

Low Clouds (% Sky Obscured)

0
0
0
8
18
19
15
7
10
19
13
41
12
5
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
2
6
23
26
32
26
59
27
3
40
2
6
3
2
2
0
6
0
0
25
25
2

High Clouds (% Sky Obscured)

44
38
57
7
21
4
13
22
27
64
40
30
23
53
92
51
5
22
21
40
40
43
42
75

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
3
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
Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
50
28
17
10
10
3
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
4
3
4
4
4
6
7
9
11
11
11
12
12
12
11
9
5
5
5
4
4
3
4

Chance of Frost

Temperature (°C)

19
18
17
16
16
18
21
23
25
26
27
28
28
29
28
28
27
24
23
22
21
20
20
19

Feels Like (°C)

19
18
17
16
18
19
22
22
23
23
24
25
25
26
26
26
27
26
24
23
21
20
22
21

Dew Point (°C)

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

Relative Humidity (%)

86
88
89
89
89
77
62
45
41
40
37
37
36
35
35
39
46
62
65
66
69
72
76
78

Pressure (mb)

1017
1017
1017
1017
1018
1018
1018
1018
1017
1016
1016
1015
1014
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014

Ozone (du)

286
285
285
285
284
283
282
282
282
282
284
286
285
285
287
290
289
290
290
292
292
293
294
294

Wednesday 15

Waning Crescent 5%

05:13

17:50

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

Sun - Rise: 06:22, Set: 19:40, Transit: 13:01. Moon - Rise: 05:13, Set: 17:50. Civil Dark: 20:08 - 05:54. Nautical Dark: 20:41 - 05:20. Astro Dark: 21:17 - 04:45

Total Clouds (% Sky Obscured)

57
76
87
59
81
34
36
13
89
35
69
14
68
70
77
51
68
100
73
72
83
56
54
93

Low Clouds (% Sky Obscured)

0
7
11
0
0
0
0
0
0
0
3
0
2
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

1
71
5
4
3
17
36
3
44
2
0
4
4
12
5
6
20
34
35
69
82
56
19
63

High Clouds (% Sky Obscured)

51
69
71
58
79
34
36
12
81
35
60
14
58
68
77
40
36
100
73
72
4
3
22
93

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

Chance of Frost

Temperature (°C)

19
18
18
18
18
20
22
25
27
28
30
31
31
31
30
30
29
27
25
24
23
23
22
21

Feels Like (°C)

20
18
19
18
19
20
22
25
27
27
28
30
30
30
29
29
28
26
25
25
25
23
23
22

Dew Point (°C)

15
15
14
14
14
15
15
16
16
16
15
15
15
15
16
16
16
14
14
14
14
14
14
14

Relative Humidity (%)

81
80
79
79
79
72
64
56
49
45
42
38
37
39
42
42
44
46
48
53
56
58
61
63

Pressure (mb)

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

Ozone (du)

293
293
293
295
295
295
293
293
292
292
294
293
292
291
293
294
294
295
296
298
296
294
293
294

Thursday 16

Waning Crescent 1%

05:37

19:04

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

Sun - Rise: 06:20, Set: 19:41, Transit: 13:00. Moon - Rise: 05:37, Set: 19:04. Civil Dark: 20:09 - 05:52. Nautical Dark: 20:43 - 05:18. Astro Dark: 21:18 - 04:43

Total Clouds (% Sky Obscured)

19
10
73
72
39
25
34
41
55
80
96
100
100
100
100
100
69
79
90
99
99
100
100
99

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
24
43
39
31
12
0
0
0
0
5
10
10
10
5
10

Medium Clouds (% Sky Obscured)

19
10
5
1
1
0
0
0
0
0
0
0
27
20
10
7
0
5
7
10
17
27
25
72

High Clouds (% Sky Obscured)

19
10
73
72
39
25
34
41
55
67
90
100
100
100
100
100
69
76
86
95
97
98
100
97

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
2
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
1
4
6
19
14
5
3

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

14
14
14
13
13
13
13
13
12
11
11
10
11
13
13
14
13
13
13
13
12
14
16
16

Relative Humidity (%)

65
67
67
67
66
62
54
44
37
33
30
28
31
35
38
39
41
45
48
50
50
59
71
75

Pressure (mb)

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

Ozone (du)

291
291
293
294
295
296
298
299
299
299
298
299
298
298
298
299
299
300
301
303
305
306
309
313

Friday 17

New Moon 0%

06:05

20:21

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
01 Bad
02 Bad

Sun - Rise: 06:19, Set: 19:42, Transit: 13:00. Moon - Rise: 06:05, Set: 20:21. Civil Dark: 20:10 - 05:51. Nautical Dark: 20:44 - 05:17. Astro Dark: 21:20 - 04:41

Total Clouds (% Sky Obscured)

98
97
92
87
86
93
95
100
100
100
100
100
100
100
97
84
79
71
63
60
55
57
69
77

Low Clouds (% Sky Obscured)

21
39
41
15
11
48
5
21
39
32
39
37
28
18
19
31
45
49
55
60
55
57
58
68

Medium Clouds (% Sky Obscured)

81
79
80
74
81
81
71
95
84
81
65
55
51
44
45
41
50
42
36
28
19
11
6
3

High Clouds (% Sky Obscured)

93
90
64
41
21
45
68
92
95
98
100
100
100
81
75
70
70
47
17
0
3
12
69
70

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
3
9
9
9
9
9
3
9
9
9
8
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
Very Light Rain
Very 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 (%)

7
15
2
0
0
4
11
18
27
37
47
58
66
72
72
74
75
69
55
28
30
46
7
6

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

20
20
21
20
20
20
20
22
23
23
24
24
22
22
22
23
24
23
23
22
21
21
20
17

Dew Point (°C)

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

Relative Humidity (%)

76
78
80
81
80
76
75
64
61
60
59
65
73
70
66
63
67
76
78
77
78
81
85
89

Pressure (mb)

1010
1010
1010
1011
1011
1011
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1012
1012
1012
1013
1013
1013
1013
1013

Ozone (du)

316
319
323
326
328
329
329
328
327
325
326
329
332
334
337
338
336
333
329
330
332
330
328
326

Saturday 18

Waxing Crescent 3%

06:37

21:41

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
01 Bad
02 Bad

Sun - Rise: 06:17, Set: 19:43, Transit: 13:00. Moon - Rise: 06:37, Set: 21:41. Civil Dark: 20:11 - 05:49. Nautical Dark: 20:45 - 05:15. Astro Dark: 21:21 - 04:39

Total Clouds (% Sky Obscured)

88
99
91
100
100
92
88
86
88
88
51
63
76
90
94
97
100
92
85
76
83
91
98
98

Low Clouds (% Sky Obscured)

79
89
87
84
82
64
47
30
23
17
10
43
35
20
14
9
5
26
34
43
47
51
55
71

Medium Clouds (% Sky Obscured)

2
0
0
0
0
0
0
7
8
12
22
6
6
7
25
42
67
68
68
69
71
71
70
68

High Clouds (% Sky Obscured)

86
99
64
100
55
90
83
40
8
17
24
22
40
59
62
65
70
57
61
51
58
56
55
60

ISS Passover

Visibility (miles)

9
9
9
9
3
1
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 (%)

3
0
0
0
0
0
0
0
0
0
0
1
1
0
3
4
0
0
0
0
1
1
1
16

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

Chance of Frost

Temperature (°C)

16
16
16
15
15
15
16
17
18
20
21
23
23
23
24
22
21
19
18
16
15
14
14
13

Feels Like (°C)

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

Dew Point (°C)

15
15
15
15
14
14
14
15
15
14
14
14
13
13
13
13
13
12
12
11
10
11
11
11

Relative Humidity (%)

93
95
95
95
92
93
90
87
80
70
61
55
53
53
52
56
60
64
67
71
74
78
80
83

Pressure (mb)

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

Ozone (du)

326
325
325
325
323
323
322
321
319
317
316
315
313
312
310
309
307
305
304
303
302
301
301
300

Sunday 19

Waxing Crescent 8%

07:16

23:01

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 OK
20 OK
21 OK
22 Good
23 Good
00 Good
01 Good
02 Good

Sun - Rise: 06:16, Set: 19:44, Transit: 13:00. Moon - Rise: 07:16, Set: 23:01. Civil Dark: 20:12 - 05:48. Nautical Dark: 20:46 - 05:13. Astro Dark: 21:22 - 04:37

Total Clouds (% Sky Obscured)

98
99
98
98
97
98
99
100
100
100
100
100
100
100
78
56
34
25
17
13
10
11
5
5

Low Clouds (% Sky Obscured)

76
75
78
80
83
78
74
69
46
25
9
18
25
39
35
21
0
3
5
8
6
4
3
2

Medium Clouds (% Sky Obscured)

70
74
74
73
70
78
86
94
89
61
41
28
19
9
6
3
0
0
0
5
7
4
2
1

High Clouds (% Sky Obscured)

65
70
66
61
57
71
86
100
100
100
100
100
100
100
78
56
34
25
17
13
10
11
0
0

ISS Passover

Visibility (miles)

8
7
7
7
7
7
7
8
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
Light Rain
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

30
45
48
47
41
40
34
23
30
39
54
54
56
61
52
40
18
16
11
2
1
1
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
12
11
12
12
11
14
15
16
15
15
15
14
13
11
11
12
12
9
9
9
8
8
7

Dew Point (°C)

11
12
12
13
13
13
13
13
13
9
6
2
1
0
-1
-2
-2
-3
-2
-2
-2
-3
-3
-3

Relative Humidity (%)

86
90
92
92
92
92
85
81
77
60
48
38
35
32
29
30
31
32
35
37
40
41
43
44

Pressure (mb)

1012
1011
1011
1011
1011
1011
1012
1012
1012
1012
1013
1013
1013
1012
1012
1013
1013
1014
1015
1015
1016
1016
1017
1017

Ozone (du)

300
300
300
302
304
305
306
306
307
310
312
315
318
321
325
328
331
334
335
336
337
340
344
347

Monday 20

Waxing Crescent 16%

08:06

00:14

Sun - Rise: 06:14, Set: 19:45, Transit: 13:00. Moon - Rise: 08:06, Set: 00:14. Civil Dark: 20:13 - 05:46. Nautical Dark: 20:48 - 05:12. Astro Dark: 21:24 - 04:36

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 Swarthmore, Delaware, United States of America (39.90,-75.35)

Generated: 14/04/26 03:30:23. Forecast: 14/04/26 to 20/04/26. Timezone: UTC-4.00