Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 5

Waxing Crescent 3%

09:53

17:54

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

Sun - Rise: 07:09, Set: 16:36, Transit: 11:52. Moon - Rise: 09:53, Set: 17:54. Civil Dark: 17:06 - 06:39. Nautical Dark: 17:40 - 06:05. Astro Dark: 18:12 - 05:32

Total Clouds (% Sky Obscured)

41
100
99
58
23
87
84
54
41
0
100
100
98
100
100
100
100
100
100
6
23
87
54
61

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
100
100
98
100
100
100
100
100
100
6
0
5
26
50

Medium Clouds (% Sky Obscured)

0
0
0
0
4
76
77
19
4
0
0
13
58
99
93
100
86
94
1
0
0
0
0
1

High Clouds (% Sky Obscured)

41
100
99
58
20
48
29
43
39
0
0
0
0
0
0
0
0
0
0
0
23
86
33
18

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
3
10
15
17
16
15
13
11
10
8
3
3

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.02
0.09
0.11
0.12
0.1
0.09
0.06
0.05
0.05
0.03
0.01
0.01

Wind Speed/Direction (mph)

4
5
5
6
6
6
7
7
7
7
7
6
6
5
5
4
4
5
4
5
6
7
10
13

Chance of Frost

Temperature (°C)

7
9
10
10
10
9
8
7
6
6
6
6
7
8
8
8
9
9
9
9
10
10
11
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

48
43
39
40
40
45
51
57
62
66
70
74
78
81
86
89
93
97
100
100
100
100
100
100

Pressure (mb)

1030
1028
1028
1027
1027
1026
1026
1026
1025
1025
1024
1024
1023
1021
1020
1019
1018
1017
1016
1015
1015
1014
1013
1012

Ozone (du)

276
275
276
278
282
279
278
278
279
280
278
275
274
274
274
274
271
270
270
272
274
274
274
273

Monday 6

Waxing Crescent 9%

10:47

19:03

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

Sun - Rise: 07:10, Set: 16:36, Transit: 11:52. Moon - Rise: 10:47, Set: 19:03. Civil Dark: 17:06 - 06:40. Nautical Dark: 17:40 - 06:06. Astro Dark: 18:13 - 05:33

Total Clouds (% Sky Obscured)

70
68
84
41
98
100
100
100
100
100
100
1
0
23
88
100
99
71
80
36
99
100
100
100

Low Clouds (% Sky Obscured)

66
63
23
0
0
0
83
47
8
0
3
0
0
0
5
0
2
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

18
13
80
20
26
68
99
100
100
100
99
1
0
0
0
0
0
0
0
0
0
0
9
8

High Clouds (% Sky Obscured)

4
0
0
26
98
100
96
0
0
2
98
0
0
23
88
100
99
71
80
36
99
100
100
100

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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

Precipitation Probability (%)

3
2
3
4
7
10
21
39
44
34
15
10
4
2
1
1
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.01
0.01
0.01
0.04
0.11
0.19
0.29
0.44
0.44
0.33
0.13
0.11
0.06
0.04
0.04
0.01
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
16
17
17
17
16
16
15
14
12
11
9
7
6
4
3
3
2
1
1
0
0
1
2

Feels Like (°C)

14
16
17
17
17
16
16
15
14
12
11
5
3
1
0
-1
-2
-2
-3
-4
-4
-4
-3
-1

Dew Point (°C)

13
14
14
13
12
12
12
12
10
8
5
3
1
-1
-2
-3
-3
-4
-4
-4
-4
-4
-4
-4

Relative Humidity (%)

94
87
83
80
76
76
78
81
78
75
69
67
66
65
64
64
65
66
69
72
73
71
69
63

Pressure (mb)

1011
1009
1008
1007
1006
1006
1006
1007
1008
1010
1011
1013
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026

Ozone (du)

275
277
278
280
283
287
292
300
302
307
312
315
313
313
315
314
315
313
310
309
302
302
302
302

Tuesday 7

Waxing Crescent 18%

No Rise

20:17

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

Sun - Rise: 07:11, Set: 16:36, Transit: 11:53. Moon - Rise: No Rise, Set: 20:17. Civil Dark: 17:06 - 06:41. Nautical Dark: 17:40 - 06:07. Astro Dark: 18:13 - 05:34

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

30
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

56
31
42
20
32
53
59
92
91
48
89
23
33
100
100
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
7
8
9
5

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
Very Light Rain
Snow
Snow

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
2
4
10
19
27

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.01
0.01
0.02
0.02
0.02
0.08
0.18
0.38
0.54

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

57
51
48
46
45
47
50
53
55
56
58
60
62
64
65
65
65
67
70
74
79
82
92
97

Pressure (mb)

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

Ozone (du)

300
302
306
306
304
303
304
305
302
300
298
297
300
304
303
298
296
303
302
301
302
303
309
315

Wednesday 8

Waxing Crescent 28%

11:29

21:30

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 Good
02 Good
03 Good
04 Good
05 Good
06 Good
07 Good
08 Good
09 Good
10 Good

Sun - Rise: 07:12, Set: 16:36, Transit: 11:53. Moon - Rise: 11:29, Set: 21:30. Civil Dark: 17:06 - 06:41. Nautical Dark: 17:40 - 06:07. Astro Dark: 18:13 - 05:35

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
0
0
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
30
30
30
30
30
30
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

31
31
43
48
45
41
37
36
36
59
39
17
10
15
6
3
2
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.62
0.54
0.84
0.87
0.65
0.59
0.5
0.51
0.86
0.57
0.19
0.1
0.09
0.16
0.11
0.05
0.02
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
97
98
95
90
86
84
84
81
88
87
87
89
90
90
90
91
93
96
99
100
96
94
88

Pressure (mb)

1021
1019
1018
1016
1016
1015
1015
1015
1016
1014
1014
1014
1014
1014
1014
1014
1015
1016
1017
1018
1020
1021
1022
1022

Ozone (du)

319
320
320
320
319
316
316
317
317
324
327
327
328
327
328
318
314
307
304
299
294
293
291
289

Thursday 9

Waxing Crescent 38%

12:03

22:40

11 Good
12 Good
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

Sun - Rise: 07:12, Set: 16:36, Transit: 11:54. Moon - Rise: 12:03, Set: 22:40. Civil Dark: 17:06 - 06:42. Nautical Dark: 17:40 - 06:08. Astro Dark: 18:13 - 05:35

Total Clouds (% Sky Obscured)

0
0
100
100
100
100
100
100
100
100
100
100
100
100
98
98
98
98
98
98
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
20
20
20
20

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
92
92
92
92
92
92
23
23
23
23
23
23
91
91
91
91

High Clouds (% Sky Obscured)

0
0
100
100
100
100
100
100
100
100
100
100
100
100
97
97
97
97
97
97
100
100
100
100

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
9
6

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
1
2
3
4
5
5
4
3

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01

Wind Speed/Direction (mph)

7
7
4
3
2
2
2
2
2
3
3
3
3
3
3
4
4
5
5
5
5
5
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
77
87
89
88
88
89
92
89
88
87
87
88
90
90
93
96
98
100
100
100
100
100
100

Pressure (mb)

1023
1023
1023
1024
1024
1024
1024
1025
1026
1026
1026
1026
1026
1025
1025
1024
1024
1024
1024
1024
1024
1024
1024
1024

Ozone (du)

286
286
291
293
293
294
296
298
293
293
293
293
291
289
284
282
281
280
278
278
277
279
281
283

Friday 10

First Quarter 49%

12:32

23:47

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

Sun - Rise: 07:13, Set: 16:36, Transit: 11:54. Moon - Rise: 12:32, Set: 23:47. Civil Dark: 17:06 - 06:43. Nautical Dark: 17:40 - 06:09. Astro Dark: 18:13 - 05:36

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

20
20
3
3
3
3
3
3
2
2
2
2
2
2
100
100
100
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

91
91
81
81
81
81
81
81
100
100
100
100
100
100
100
100
100
100
100
100
5
5
5
5

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
0
0
0
0
0
0
100
100
100
100

ISS Passover

Visibility (miles)

5
6
6
6
6
6
7
9
10
10
9
8
7
5
3
2
1
0
3
7
10
10
10
10

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

Precipitation Probability (%)

0
0
2
7
15
20
22
21
17
16
15
10
5
0
0
0
4
5
5
5
5
0
0
0

Precipitation Amount (mm)

0
0
0.01
0.03
0.08
0.11
0.1
0.07
0.04
0.03
0.03
0.03
0.01
0
0
0
0.01
0.02
0.02
0.01
0.01
0
0
0

Wind Speed/Direction (mph)

4
4
4
3
2
1
2
2
2
2
2
2
2
3
3
4
5
5
7
8
10
10
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
4
5
6
7
7
6
6
6
6
6
6
6
7
7
7
7
7
7
10
11
12
12
13

Dew Point (°C)

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

Relative Humidity (%)

100
100
99
99
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Pressure (mb)

1023
1022
1021
1021
1021
1020
1020
1020
1019
1019
1018
1017
1017
1016
1015
1014
1014
1013
1013
1013
1013
1012
1013
1012

Ozone (du)

284
284
284
283
283
283
282
281
281
280
280
280
279
278
277
276
276
276
276
277
277
278
279
279

Saturday 11

Waxing Gibbous 60%

12:56

00:50

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

Sun - Rise: 07:14, Set: 16:36, Transit: 11:55. Moon - Rise: 12:56, Set: 00:50. Civil Dark: 17:07 - 06:44. Nautical Dark: 17:40 - 06:10. Astro Dark: 18:13 - 05:37

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
2
2
2
2
2
2
16
16
16
16
16
16
100
100
100
100

Medium Clouds (% Sky Obscured)

5
5
99
99
99
99
99
99
100
100
100
100
100
100
100
100
100
100
100
100
98
98
98
98

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
9
7
7
9
9
7
5
3
2
1
0
1
2
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
3
4
6
8
13
18
29
39
47
59
67
66
65
68
70
69
59
39
20
13

Precipitation Amount (mm)

0
0
0
0
0.02
0.04
0.05
0.07
0.11
0.17
0.28
0.38
0.47
0.66
0.83
0.77
0.71
0.77
0.91
1.07
1.12
0.99
0.77
0.56

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
16
18
18
18
18
17
16
14
14
14
14
13
13
12
11
9
8
8
7
7
6
6
5

Feels Like (°C)

14
17
18
19
19
19
17
16
15
14
14
14
13
13
12
11
7
5
5
4
4
3
3
2

Dew Point (°C)

14
16
18
18
18
18
17
16
14
14
14
14
13
13
12
11
9
8
8
7
7
6
5
4

Relative Humidity (%)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
96
95

Pressure (mb)

1012
1011
1010
1010
1010
1009
1009
1009
1009
1009
1008
1008
1009
1009
1010
1011
1013
1014
1016
1017
1018
1019
1020
1021

Ozone (du)

280
281
281
279
277
276
275
275
275
275
275
275
277
279
282
284
285
287
290
292
294
295
296
298

Forecast for Swarthmore, Delaware County, US (39.90,-75.35)

Generated: 05/12/21 11:47:19. Forecast: 05/12/21 to 11/12/21. Timezone: UTC-5.00