Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 20

Waxing Crescent 23%

09:14

00:42

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

Sun - Rise: 05:41, Set: 20:14, Transit: 12:58. Moon - Rise: 09:14, Set: 00:42. Civil Dark: 20:45 - 05:10. Nautical Dark: 21:24 - 04:30. Astro Dark: 22:07 - 03:46

Total Clouds (% Sky Obscured)

53
38
28
0
0
0
19
45
22
29
55
55
100
100
100
100
100
100
100
100
100
98
99
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
9
24
10
17
16
7
75
29
25
69
76
85
79
68
61
58
66
77

Medium Clouds (% Sky Obscured)

20
0
1
0
0
0
0
8
9
9
25
0
66
76
32
56
43
92
98
100
92
84
88
84

High Clouds (% Sky Obscured)

2
1
0
0
0
0
0
0
0
2
55
55
96
100
100
100
100
100
100
98
96
56
90
96

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
8
3
3
4
9
9
9
9
7
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
None
Light Rain
Moderate Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
5
18
14
20
65
55
95
95
95
95
88
95
95
64
48
37
41
39

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.5
0
1.3
7.6
1.3
0.8
0.3
0.2
1.4
0.2
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

23
22
23
25
27
29
31
32
32
33
33
31
31
26
23
22
22
22
21
20
19
18
17
16

Feels Like (°C)

26
25
25
27
29
31
32
33
33
33
34
32
31
26
23
22
21
21
21
20
19
18
16
15

Dew Point (°C)

18
17
17
17
17
17
17
18
17
18
17
14
15
20
21
21
21
21
20
18
17
16
15
14

Relative Humidity (%)

73
74
69
59
52
48
45
42
41
41
39
36
37
70
92
91
92
94
94
92
89
90
89
86

Pressure (mb)

1015
1016
1016
1016
1016
1016
1016
1015
1015
1014
1014
1014
1014
1015
1016
1016
1016
1017
1018
1018
1019
1019
1019
1019

Ozone (du)

311
314
317
318
319
320
320
319
320
321
321
322
321
316
314
313
310
311
311
310
312
313
312
313

Thursday 21

Waxing Crescent 33%

10:30

01:17

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: 05:40, Set: 20:15, Transit: 12:58. Moon - Rise: 10:30, Set: 01:17. Civil Dark: 20:46 - 05:09. Nautical Dark: 21:25 - 04:29. Astro Dark: 22:09 - 03:45

Total Clouds (% Sky Obscured)

100
100
100
100
99
100
100
100
100
100
100
100
100
99
95
84
86
87
82
88
90
90
76
56

Low Clouds (% Sky Obscured)

80
73
85
86
83
85
82
75
72
65
88
95
93
96
77
30
30
34
29
10
5
11
12
14

Medium Clouds (% Sky Obscured)

96
99
99
100
98
80
100
100
100
100
99
100
100
94
88
26
12
19
23
25
33
32
27
39

High Clouds (% Sky Obscured)

97
100
100
93
48
92
100
100
100
100
100
100
97
60
60
52
52
21
16
39
40
50
31
4

ISS Passover

Visibility (miles)

9
9
9
4
8
9
9
4
3
8
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
1

Precipitation Type

None
None
Light Rain
Light Rain
None
None
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 (%)

46
13
68
95
64
72
95
95
95
68
63
63
45
23
4
0
0
0
10
0
0
0
0
0

Precipitation Amount (mm)

0
0
0.4
1.5
0
0
0.7
1.1
1.3
0.3
0.3
0.3
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
8
7
8
8
9
8
8
7
7
8
7
5
5
5
4
4
3
3
3
3
3
4
4

Chance of Frost

Temperature (°C)

15
14
15
15
14
15
15
14
14
14
14
14
14
14
14
14
14
13
13
13
12
12
12
12

Feels Like (°C)

13
13
13
12
13
13
13
13
13
12
13
13
13
13
13
14
13
13
13
13
12
12
11
11

Dew Point (°C)

12
12
11
12
13
13
13
13
13
13
13
12
12
13
13
13
13
12
12
12
12
12
12
12

Relative Humidity (%)

82
84
80
84
93
92
90
92
92
93
89
89
87
90
92
93
93
92
92
93
96
98
98
98

Pressure (mb)

1020
1020
1021
1022
1023
1023
1023
1024
1024
1024
1024
1024
1024
1024
1024
1025
1025
1026
1026
1026
1026
1026
1026
1026

Ozone (du)

313
313
313
312
313
313
313
313
315
316
317
318
316
317
320
323
323
324
325
324
324
323
324
325

Friday 22

Waxing Crescent 45%

11:44

01:45

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: 05:39, Set: 20:16, Transit: 12:58. Moon - Rise: 11:44, Set: 01:45. Civil Dark: 20:47 - 05:08. Nautical Dark: 21:26 - 04:28. Astro Dark: 22:10 - 03:44

Total Clouds (% Sky Obscured)

80
81
82
87
90
86
80
91
93
100
93
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

17
34
47
56
41
30
22
0
0
7
0
26
59
59
72
77
99
77
81
86
100
96
92
89

Medium Clouds (% Sky Obscured)

28
24
27
20
36
65
59
76
85
89
92
100
100
100
100
100
100
100
100
99
100
100
100
100

High Clouds (% Sky Obscured)

37
24
21
28
30
15
8
35
19
38
47
39
39
62
56
79
94
99
100
89
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
8
6
3
2
2
2
2

Fog (%)

2
3
1
1
1
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
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

Precipitation Probability (%)

0
0
0
0
0
0
0
1
3
11
24
22
56
77
86
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.4
0.7
0.8
0.4
1.5
1.8
1.7
2
2.4
1.8

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

11
11
12
13
14
16
17
19
20
20
20
18
17
16
14
13
12
12
12
11
11
11
11
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
96
93
84
69
58
49
41
37
34
34
36
42
43
48
62
81
92
92
93
93
93
95
95

Pressure (mb)

1026
1026
1027
1028
1028
1028
1028
1027
1027
1027
1026
1026
1026
1026
1027
1027
1027
1028
1028
1027
1027
1027
1027
1026

Ozone (du)

325
326
325
326
326
326
327
327
328
327
328
328
328
327
325
326
327
327
327
329
330
328
327
328

Saturday 23

First Quarter 56%

12:54

02:09

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: 05:39, Set: 20:17, Transit: 12:58. Moon - Rise: 12:54, Set: 02:09. Civil Dark: 20:48 - 05:07. Nautical Dark: 21:27 - 04:27. Astro Dark: 22:12 - 03:43

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)

90
92
94
96
98
100
99
98
97
98
99
100
100
100
100
100
100
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

100
100
99
100
100
100
100
96
100
100
100
100
98
97
93
95
97
82
100
100
100
100
100
100

High Clouds (% Sky Obscured)

100
100
100
98
97
95
97
99
100
100
100
100
95
91
87
91
95
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

2
5
4
3
4
3
4
4
2
2
2
1
2
2
2
4
6
6
6
6
9
4
3
2

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

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
75
61
54
75
95
95
95
95
95

Precipitation Amount (mm)

1.6
0.9
1.5
1.1
1.2
1.5
0.9
1.5
2.9
2
2.8
2.8
2.4
1.7
0.6
0.3
0.2
0
0.4
0.8
1.2
1.3
1.8
1.9

Wind Speed/Direction (mph)

9
10
9
8
9
9
11
11
10
9
10
9
10
10
9
10
10
10
10
10
10
9
9
9

Chance of Frost

Temperature (°C)

10
10
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
12
12
12

Feels Like (°C)

8
8
8
8
8
8
8
8
8
9
8
9
9
9
9
8
9
9
9
9
8
9
9
9

Dew Point (°C)

10
10
10
10
10
10
10
10
10
10
10
11
11
11
10
11
11
11
11
11
11
11
11
11

Relative Humidity (%)

96
95
95
96
95
93
95
95
95
96
96
98
98
98
96
98
96
96
96
98
98
95
98
96

Pressure (mb)

1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1026
1027
1026
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1026

Ozone (du)

329
328
328
328
328
327
325
325
326
325
323
322
323
323
324
324
325
325
326
325
326
327
330
332

Sunday 24

Waxing Gibbous 66%

14:00

02:30

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: 05:38, Set: 20:18, Transit: 12:58. Moon - Rise: 14:00, Set: 02:30. Civil Dark: 20:49 - 05:07. Nautical Dark: 21:28 - 04:26. Astro Dark: 22:13 - 03:42

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

Medium Clouds (% Sky Obscured)

93
86
79
73
66
65
70
74
70
71
71
25
30
31
37
54
71
81
87
75
77
78
83
83

High Clouds (% Sky Obscured)

96
92
89
73
96
37
46
98
95
99
99
98
98
99
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

3
6
3
9
9
9
8
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

95
95
95
79
60
41
38
22
11
26
24
19
2
3
0
7
8
7
9
15
24
81
95
95

Precipitation Amount (mm)

1.2
1.1
0.9
0.4
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.9
1.3

Wind Speed/Direction (mph)

10
10
11
11
11
11
11
11
10
10
9
9
10
9
8
7
7
7
7
7
6
6
5
5

Chance of Frost

Temperature (°C)

12
12
11
11
12
12
12
12
12
12
12
12
13
12
12
12
12
12
12
12
12
12
12
12

Feels Like (°C)

9
9
8
9
9
9
8
9
9
9
9
10
10
10
10
10
10
10
10
10
10
10
10
10

Dew Point (°C)

11
11
11
11
11
11
11
11
11
11
11
12
12
12
11
11
11
11
11
11
11
11
11
11

Relative Humidity (%)

98
96
98
98
95
96
96
96
96
93
95
95
95
95
95
95
95
95
95
95
93
95
95
95

Pressure (mb)

1026
1026
1027
1027
1028
1028
1028
1028
1028
1028
1027
1027
1027
1027
1027
1027
1026
1026
1026
1025
1025
1024
1024
1023

Ozone (du)

333
332
333
334
335
335
332
330
331
330
329
326
325
323
323
321
321
321
321
321
321
321
320
319

Monday 25

Waxing Gibbous 76%

15:03

02:52

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: 05:37, Set: 20:18, Transit: 12:58. Moon - Rise: 15:03, Set: 02:52. Civil Dark: 20:50 - 05:06. Nautical Dark: 21:30 - 04:26. Astro Dark: 22:14 - 03:41

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
99
98
96
96
96
97
98
99
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
100
96
93
90
85
83
77
80
83
87
83
80
77
61
46
31
30
28
27
43
56
69

Medium Clouds (% Sky Obscured)

88
93
98
97
94
92
95
97
99
95
77
29
13
7
0
0
0
0
33
73
100
100
100
100

High Clouds (% Sky Obscured)

100
99
98
96
95
93
89
81
81
79
79
80
78
84
92
90
85
80
89
93
98
99
99
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
8
8
8
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
Very Light Rain
None
None
None
None
None
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
72
42
43
44
46
46
48
51
43
37
33
34
34
30
33
31
25
34
40
42
43
43
34

Precipitation Amount (mm)

0.9
0.3
0
0
0
0.2
0
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
4
4
3
3
3
3
3
4
4
4
3
3
3
3
3
3
3
3
3
3
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
95
93
93
89
84
80
84
89
93
95
95
96
96
96
98
98
98
98
98
98
98
98
98

Pressure (mb)

1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022
1021
1021
1021
1022
1022
1022
1022
1022
1022
1021
1021
1021

Ozone (du)

318
319
319
319
319
318
317
318
318
318
318
318
318
318
319
319
319
319
319
319
319
319
319
320

Tuesday 26

Waxing Gibbous 84%

16:06

03:14

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

Sun - Rise: 05:37, Set: 20:19, Transit: 12:58. Moon - Rise: 16:06, Set: 03:14. Civil Dark: 20:51 - 05:05. Nautical Dark: 21:31 - 04:25. Astro Dark: 22:16 - 03:40

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

Low Clouds (% Sky Obscured)

64
54
51
67
82
90
74
61
53
56
57
59
57
53
54
62
70
79
72
66
59

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
98
96
94
93
92
92
88
82
77

High Clouds (% Sky Obscured)

89
79
68
54
38
26
44
63
82
79
77
74
82
91
100
94
90
87
96
98
99

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

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

Precipitation Probability (%)

34
34
35
32
27
16
22
25
24
29
32
31
44
38
27
22
17
5
7
6
1

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
96
96
96
96
96
95
86
77
70
73
74
76
80
84
88
89
90
93
95
95

Pressure (mb)

1021
1021
1021
1022
1022
1022
1022
1021
1021
1021
1020
1020
1019
1019
1019
1019
1019
1020
1020
1019
1019

Ozone (du)

321
321
321
321
321
322
322
322
323
323
324
325
326
326
326
326
327
328
329
328
328

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

Generated: 20/05/26 05:22:03. Forecast: 20/05/26 to 26/05/26. Timezone: UTC-4.00