Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 7

Waning Crescent 8%

03:28

18:07

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

Sun - Rise: 06:36, Set: 19:20, Transit: 12:58. Moon - Rise: 03:28, Set: 18:07. Civil Dark: 19:48 - 06:09. Nautical Dark: 20:20 - 05:37. Astro Dark: 20:53 - 05:03

Total Clouds (% Sky Obscured)

61
70
46
46
18
33
25
10
3
31
18
10
45
56
52
61
69
100
100
100
98
100
100
95

Low Clouds (% Sky Obscured)

6
3
2
1
1
2
3
0
0
0
0
0
0
0
0
4
6
8
10
9
5
3
5
5

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
0
0
16

High Clouds (% Sky Obscured)

61
70
4
30
4
11
2
9
3
31
18
6
20
30
23
27
47
100
100
100
98
100
100
77

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)

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

Chance of Frost

Temperature (°C)

24
22
21
19
17
17
16
16
16
15
15
17
20
23
25
26
27
28
28
28
27
27
25
24

Feels Like (°C)

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

Dew Point (°C)

11
10
9
8
7
7
7
8
8
8
8
9
10
11
12
12
12
12
13
13
13
14
15
14

Relative Humidity (%)

45
44
46
47
50
51
55
57
59
61
63
59
52
48
44
41
39
38
38
40
42
46
52
54

Pressure (mb)

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

Ozone (du)

312
312
312
313
312
314
314
314
313
313
314
313
312
312
313
311
308
307
306
306
305
305
305
302

Tuesday 8

Waning Crescent 3%

04:44

18:35

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

Sun - Rise: 06:37, Set: 19:19, Transit: 12:58. Moon - Rise: 04:44, Set: 18:35. Civil Dark: 19:46 - 06:10. Nautical Dark: 20:18 - 05:38. Astro Dark: 20:51 - 05:04

Total Clouds (% Sky Obscured)

100
98
100
100
76
87
68
79
90
88
66
40
43
52
52
32
69
46
34
39
37
38
51
46

Low Clouds (% Sky Obscured)

4
3
4
4
3
4
0
0
1
2
0
0
0
0
0
0
17
16
21
5
5
5
9
2

Medium Clouds (% Sky Obscured)

8
3
31
55
59
77
68
24
30
30
31
24
33
35
44
31
45
31
19
35
24
20
20
26

High Clouds (% Sky Obscured)

100
98
100
100
35
40
34
30
37
30
44
11
11
43
4
6
22
26
5
39
37
38
51
46

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

24
23
23
23
23
22
21
20
20
20
20
22
24
25
27
28
29
28
30
30
30
29
28
27

Dew Point (°C)

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

Relative Humidity (%)

57
67
73
75
77
76
75
74
75
77
78
72
63
55
48
42
37
37
36
36
38
39
43
49

Pressure (mb)

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

Ozone (du)

300
299
299
298
296
294
293
291
290
290
290
290
288
287
286
285
283
282
282
282
281
282
282
280

Wednesday 9

Waning Crescent 0%

05:57

19:00

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

Sun - Rise: 06:38, Set: 19:17, Transit: 12:58. Moon - Rise: 05:57, Set: 19:00. Civil Dark: 19:44 - 06:11. Nautical Dark: 20:16 - 05:39. Astro Dark: 20:50 - 05:06

Total Clouds (% Sky Obscured)

90
61
62
60
37
34
31
34
38
66
83
82
94
95
99
85
93
87
81
75
77
78
84
89

Low Clouds (% Sky Obscured)

77
3
0
1
0
0
0
0
1
11
11
55
85
26
46
79
68
50
54
45
57
54
75
48

Medium Clouds (% Sky Obscured)

27
0
0
4
8
19
16
13
20
37
70
55
77
88
98
78
87
84
81
75
53
39
84
89

High Clouds (% Sky Obscured)

57
61
62
60
28
2
2
1
0
2
6
7
0
0
2
5
0
0
0
0
0
0
0
1

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
0
0
0
0
0
0
2
5
9
8
33
54
36
46
32
5
4
6
2
31
69
65
64

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

10
11
11
11
11
11
11
10
10
9
7
6
7
6
7
7
7
7
7
7
6
6
4
3

Chance of Frost

Temperature (°C)

25
25
24
23
23
23
23
22
22
22
22
23
23
23
24
24
25
25
26
26
26
26
25
24

Feels Like (°C)

26
24
24
23
23
23
23
22
22
22
22
23
23
24
25
25
26
27
27
28
28
28
28
27

Dew Point (°C)

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

Relative Humidity (%)

53
53
55
57
59
64
55
54
57
56
54
53
59
73
73
79
83
84
82
78
82
82
94
95

Pressure (mb)

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

Ozone (du)

280
280
279
279
278
278
279
278
278
278
278
278
279
279
281
281
281
281
282
283
283
284
283
284

Thursday 10

New Moon 1%

07:07

19:23

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

Sun - Rise: 06:39, Set: 19:15, Transit: 12:57. Moon - Rise: 07:07, Set: 19:23. Civil Dark: 19:43 - 06:12. Nautical Dark: 20:15 - 05:40. Astro Dark: 20:48 - 05:07

Total Clouds (% Sky Obscured)

94
98
99
99
100
100
100
100
100
100
100
96
100
100
99
95
95
75
69
69
71
95
97
94

Low Clouds (% Sky Obscured)

44
79
43
95
95
94
92
32
24
18
16
15
14
11
16
15
11
14
12
12
11
8
7
8

Medium Clouds (% Sky Obscured)

94
98
98
99
100
100
100
100
100
85
95
65
55
50
37
26
19
19
22
23
22
24
24
28

High Clouds (% Sky Obscured)

1
16
30
55
75
99
75
75
66
77
64
46
32
13
34
53
77
57
45
32
47
78
93
74

ISS Passover

Visibility (miles)

9
2
3
4
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

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

Precipitation Probability (%)

92
95
95
95
95
95
95
83
63
53
45
34
23
6
6
4
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.6
1
2
2.1
2.8
1.5
1.1
0.6
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

23
22
22
21
20
19
19
19
19
19
19
16
13
10
9
9
8
9
8
8
8
9
9
9

Relative Humidity (%)

94
95
96
92
94
91
92
92
93
93
93
81
64
50
46
42
37
36
34
34
35
39
42
43

Pressure (mb)

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

Ozone (du)

285
287
289
290
291
291
291
288
288
289
290
292
295
298
303
305
303
304
304
304
304
302
301
301

Friday 11

Waxing Crescent 3%

08:15

19:47

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

Sun - Rise: 06:40, Set: 19:14, Transit: 12:57. Moon - Rise: 08:15, Set: 19:47. Civil Dark: 19:41 - 06:13. Nautical Dark: 20:13 - 05:41. Astro Dark: 20:46 - 05:08

Total Clouds (% Sky Obscured)

90
59
38
21
0
0
3
20
12
33
36
44
53
61
70
79
89
82
77
70
63
56
48
61

Low Clouds (% Sky Obscured)

13
14
12
6
0
0
0
0
0
1
2
6
11
18
33
43
50
44
39
32
16
13
2
13

Medium Clouds (% Sky Obscured)

33
36
22
12
0
0
0
0
0
0
0
0
0
0
11
25
37
39
40
39
40
42
43
39

High Clouds (% Sky Obscured)

54
2
0
1
0
0
3
20
12
33
36
35
26
28
22
30
40
38
36
29
21
11
2
11

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
1
1
0
0
1
2
9

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

20
19
21
20
20
19
19
18
16
17
16
16
17
18
18
20
21
22
26
26
26
26
26
26

Dew Point (°C)

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

Relative Humidity (%)

43
45
47
51
53
52
49
49
49
53
59
60
53
47
42
44
46
48
49
49
49
52
54
57

Pressure (mb)

1016
1016
1016
1017
1017
1017
1017
1017
1017
1018
1018
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

301
300
298
298
299
299
299
298
297
297
298
300
301
301
302
301
300
298
298
297
297
297
298
298

Saturday 12

Waxing Crescent 8%

09:22

20:11

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

Sun - Rise: 06:41, Set: 19:12, Transit: 12:57. Moon - Rise: 09:22, Set: 20:11. Civil Dark: 19:39 - 06:14. Nautical Dark: 20:11 - 05:42. Astro Dark: 20:44 - 05:09

Total Clouds (% Sky Obscured)

74
88
79
66
52
42
35
34
40
48
51
44
52
45
46
47
47
46
45
43
31
28
32
26

Low Clouds (% Sky Obscured)

25
36
43
49
52
42
35
34
40
48
51
44
52
45
46
47
47
46
45
43
31
28
32
26

Medium Clouds (% Sky Obscured)

33
21
15
12
9
8
5
3
4
4
4
5
7
8
5
3
0
0
0
0
0
0
0
2

High Clouds (% Sky Obscured)

22
33
48
34
14
22
25
24
40
48
51
44
52
45
46
25
0
0
1
1
9
20
31
24

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
13
22
22
16
30
40
44
45
42
34
33
27
18
28
29
25
24
21
9
14
10
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

21
21
21
20
20
20
19
20
20
20
20
20
22
24
25
26
26
26
31
30
29
29
28
28

Dew Point (°C)

14
14
14
14
15
16
16
17
18
18
18
18
19
21
22
22
22
22
21
21
21
20
20
20

Relative Humidity (%)

59
62
65
69
76
81
85
89
93
93
92
92
92
91
91
84
78
72
70
69
68
71
76
80

Pressure (mb)

1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1020
1020
1020
1020
1020
1020
1019
1019
1019
1018
1018
1018
1018
1018

Ozone (du)

296
294
292
291
289
288
288
287
287
287
288
288
291
293
296
295
294
292
291
290
289
288
288
288

Sunday 13

Waxing Crescent 15%

10:28

20:38

21 OK
22 Good
23 Good
00 OK
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

Sun - Rise: 06:42, Set: 19:10, Transit: 12:56. Moon - Rise: 10:28, Set: 20:38. Civil Dark: 19:38 - 06:15. Nautical Dark: 20:09 - 05:43. Astro Dark: 20:42 - 05:10

Total Clouds (% Sky Obscured)

21
12
15
19
23
39
58
80
81
82
81
77
74
69
75
84
92

Low Clouds (% Sky Obscured)

18
0
0
0
0
0
0
0
0
0
0
0
0
0
3
8
11

Medium Clouds (% Sky Obscured)

3
4
2
1
0
0
0
0
8
17
28
31
34
27
26
27
29

High Clouds (% Sky Obscured)

15
5
12
19
23
39
58
80
78
77
72
59
28
15
14
12
9

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

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

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

22
22
21
21
21
20
20
20
20
20
21
21
23
25
27
28
29

Feels Like (°C)

25
26
25
26
26
26
24
25
25
24
24
24
26
27
27
28
28

Dew Point (°C)

19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
18
18

Relative Humidity (%)

81
84
88
89
91
92
93
95
96
92
91
87
77
68
59
55
51

Pressure (mb)

1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1018
1018
1018
1017
1017
1017
1017

Ozone (du)

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

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

Generated: 07/09/26 21:48:15. Forecast: 07/09/26 to 13/09/26. Timezone: UTC-4.00