Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 21

Waxing Crescent 10%

08:40

22:45

11 OK
12 OK
13 OK
14 OK
15 OK
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: 06:59, Set: 19:15, Transit: 13:08. Moon - Rise: 08:40, Set: 22:45. Civil Dark: 19:41 - 06:32. Nautical Dark: 20:13 - 06:01. Astro Dark: 20:45 - 05:28

Total Clouds (% Sky Obscured)

34
31
31
32
28
100
84
99
97
81
69
53
58
67
75
64
65
97
90
82
79
93
99
97

Low Clouds (% Sky Obscured)

27
0
0
0
0
0
0
0
0
0
0
26
27
32
34
31
45
79
43
44
39
72
94
84

Medium Clouds (% Sky Obscured)

9
2
12
18
21
59
84
99
90
72
62
41
8
1
27
35
22
52
79
67
61
22
82
76

High Clouds (% Sky Obscured)

1
2
31
29
6
25
28
9
12
22
7
3
19
30
21
12
6
41
38
43
51
55
60
65

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)

9
9
8
7
7
7
5
4
3
2
2
4
6
6
6
6
5
4
5
5
6
5
7
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
49
42
36
35
34
36
36
42
46
47
51
60
63
65
69
74
76
78
79
85
87
85
81

Pressure (mb)

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

Ozone (du)

360
357
354
351
350
348
347
345
341
338
336
333
332
329
327
328
326
326
327
325
325
325
323
323

Sunday 22

Waxing Crescent 18%

09:22

00:03

11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 OK
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: 06:58, Set: 19:16, Transit: 13:07. Moon - Rise: 09:22, Set: 00:03. Civil Dark: 19:43 - 06:31. Nautical Dark: 20:14 - 05:59. Astro Dark: 20:47 - 05:27

Total Clouds (% Sky Obscured)

93
86
91
94
100
43
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
86
82

Low Clouds (% Sky Obscured)

62
56
29
5
0
0
0
0
0
0
1
21
7
30
30
30
33
66
81
90
81
82
86
82

Medium Clouds (% Sky Obscured)

44
48
85
93
79
43
30
75
100
99
100
82
31
94
50
76
89
100
94
100
40
12
12
19

High Clouds (% Sky Obscured)

66
49
69
80
100
43
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
96
75
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
4
9
4
3
6
3
2
6
5
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
Light Rain
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
2
1
7
5
11
14
31
58
54
78
92
87
95
95
95
58
51
47
30
3
3

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.6
0.5
0.4
3
3
1.1
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

12
14
16
17
19
20
20
20
19
19
18
17
16
15
15
15
14
13
12
11
10
9
9
9

Feels Like (°C)

9
11
13
14
15
17
17
18
17
16
16
16
15
15
14
13
13
11
9
8
6
4
4
5

Dew Point (°C)

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

Relative Humidity (%)

72
62
51
49
47
49
53
56
58
60
61
66
87
92
87
90
92
90
87
81
81
77
73
66

Pressure (mb)

1010
1009
1008
1007
1006
1005
1004
1003
1003
1003
1003
1003
1003
1003
1002
1002
1002
1002
1003
1004
1005
1006
1008
1010

Ozone (du)

322
321
320
318
319
317
317
316
313
313
313
316
314
311
315
315
316
317
319
318
324
326
332
333

Monday 23

Waxing Crescent 29%

10:13

01:18

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

Sun - Rise: 06:56, Set: 19:17, Transit: 13:07. Moon - Rise: 10:13, Set: 01:18. Civil Dark: 19:44 - 06:29. Nautical Dark: 20:15 - 05:57. Astro Dark: 20:48 - 05:25

Total Clouds (% Sky Obscured)

70
41
57
66
34
48
48
40
31
24
16
0
0
0
0
0
28
49
28
0
1
2
4
3

Low Clouds (% Sky Obscured)

61
40
57
66
32
43
48
40
31
24
16
0
0
0
0
0
28
49
28
0
0
0
0
0

Medium Clouds (% Sky Obscured)

15
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
0
0
0
0

High Clouds (% Sky Obscured)

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

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 (%)

4
1
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)

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

Chance of Frost

Temperature (°C)

10
10
11
12
11
11
10
9
8
6
5
4
4
3
2
2
2
1
1
1
1
1
2
3

Feels Like (°C)

6
6
7
8
7
7
5
5
4
2
2
0
-1
-1
-2
-2
-2
-2
-3
-3
-2
-2
-2
0

Dew Point (°C)

2
-0
-1
-2
-3
-4
-4
-5
-5
-6
-6
-7
-7
-7
-8
-8
-8
-8
-8
-7
-7
-7
-7
-8

Relative Humidity (%)

58
50
44
40
38
36
36
37
40
41
43
43
46
46
47
48
50
52
53
57
59
59
52
46

Pressure (mb)

1011
1012
1012
1013
1013
1014
1015
1016
1018
1020
1021
1022
1022
1023
1023
1024
1024
1025
1025
1026
1027
1028
1028
1029

Ozone (du)

334
336
337
335
334
336
338
341
344
344
347
350
352
349
351
354
354
354
356
359
362
363
363
361

Tuesday 24

Waxing Crescent 40%

No Rise

02:25

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

Sun - Rise: 06:55, Set: 19:18, Transit: 13:07. Moon - Rise: No Rise, Set: 02:25. Civil Dark: 19:45 - 06:28. Nautical Dark: 20:16 - 05:56. Astro Dark: 20:49 - 05:23

Total Clouds (% Sky Obscured)

2
2
1
1
1
0
8
14
21
20
76
68
60
47
35
53
72
94
94
92
90
92
94
75

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
20
31
34
37
39
38
39
38

Medium Clouds (% Sky Obscured)

0
0
0
0
1
0
7
12
20
20
20
16
14
47
35
53
58
80
85
80
76
78
80
75

High Clouds (% Sky Obscured)

0
1
0
0
0
0
0
0
0
1
10
15
15
25
3
2
21
26
26
30
30
42
67
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 (%)

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)

7
6
5
5
4
4
4
5
5
5
5
6
6
6
6
6
5
5
5
4
4
4
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
3
5
6
7
8
8
7
5
4
3
0
-0
-1
-1
-1
-2
-2
-2
-1
-1
-1
1
3

Dew Point (°C)

-9
-9
-10
-11
-11
-11
-11
-12
-12
-11
-8
-6
-5
-5
-5
-5
-5
-5
-5
-4
-4
-3
-2
-2

Relative Humidity (%)

39
34
29
26
24
23
22
22
24
28
37
48
51
53
56
55
56
57
58
61
63
64
61
54

Pressure (mb)

1029
1029
1028
1028
1027
1027
1026
1026
1026
1027
1027
1027
1027
1027
1026
1026
1026
1026
1026
1027
1027
1027
1027
1027

Ozone (du)

358
355
356
357
360
367
366
365
367
370
375
379
382
382
384
384
385
383
378
374
374
373
373
372

Wednesday 25

First Quarter 52%

11:16

03:22

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

Sun - Rise: 06:53, Set: 19:19, Transit: 13:07. Moon - Rise: 11:16, Set: 03:22. Civil Dark: 19:46 - 06:26. Nautical Dark: 20:17 - 05:54. Astro Dark: 20:50 - 05:21

Total Clouds (% Sky Obscured)

76
81
82
81
81
80
100
100
99
85
100
100
99
41
26
38
49
59
71
86
99
98
96
96

Low Clouds (% Sky Obscured)

25
13
0
17
34
52
51
50
49
50
51
53
53
41
26
0
0
0
0
0
0
10
19
27

Medium Clouds (% Sky Obscured)

76
80
82
81
81
80
66
54
56
51
99
99
98
41
26
5
4
4
7
10
7
9
10
15

High Clouds (% Sky Obscured)

28
29
33
33
28
34
88
83
70
61
76
45
32
33
26
26
41
56
70
85
98
90
60
41

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
11
17
20
30
33
33
32
31
29
27
26
25
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
5
6
7
6
7
7
6
6
7
6
6
6
6
6
6
6
6
6
6
6
6
7
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
8
9
11
11
10
10
7
7
6
5
3
3
3
4
4
3
2
2
1
2
2
3
4

Dew Point (°C)

-2
-2
-2
-2
-2
-3
-2
-1
0
1
-2
-2
-2
-3
-3
-3
-2
-1
1
1
3
3
4
5

Relative Humidity (%)

46
42
38
37
35
34
36
41
48
53
48
50
52
52
51
53
60
67
77
79
83
86
78
69

Pressure (mb)

1027
1026
1025
1024
1024
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1021
1023
1022
1022
1022
1021
1021
1020
1020

Ozone (du)

370
369
367
366
365
364
364
361
362
359
359
357
357
356
351
347
343
338
334
330
326
323
320
316

Thursday 26

Waxing Gibbous 64%

12:26

04:07

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: 06:51, Set: 19:20, Transit: 13:06. Moon - Rise: 12:26, Set: 04:07. Civil Dark: 19:47 - 06:24. Nautical Dark: 20:19 - 05:52. Astro Dark: 20:51 - 05:20

Total Clouds (% Sky Obscured)

97
97
97
97
97
97
98
99
100
100
100
100
100
98
96
92
96
98
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

41
54
68
68
60
45
46
48
49
54
59
65
71
78
83
80
80
86
91
97
100
99
99
98

Medium Clouds (% Sky Obscured)

49
61
75
81
86
91
85
82
82
88
94
100
64
42
58
71
86
98
100
100
100
100
100
98

High Clouds (% Sky Obscured)

21
10
0
1
2
3
35
68
100
100
100
100
93
79
64
73
87
98
100
95
91
94
94
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
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
5
8
10
31
42
51
80
95
95
95
95
87
78
67
54
47
38
21
19
17
4

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.2
0.5
0.8
1.1
1
0.8
0.5
0.5
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

11
12
13
13
13
13
13
12
12
11
11
11
11
10
10
10
10
10
11
9
9
11
11
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
5
6
8
14
13
13
12
12
11
10
11
11
11
11
11
11
11
11
10
10
10
7
7

Dew Point (°C)

6
6
7
7
8
9
10
10
10
10
11
11
12
12
12
12
12
12
12
10
8
6
4
2

Relative Humidity (%)

63
60
56
54
60
66
74
75
76
79
80
83
84
86
87
87
90
92
93
89
83
78
72
65

Pressure (mb)

1019
1018
1016
1015
1013
1012
1010
1009
1008
1007
1007
1006
1006
1006
1006
1006
1007
1008
1009
1011
1013
1015
1016
1017

Ozone (du)

313
310
308
305
303
300
298
295
292
289
287
286
285
285
285
286
285
284
283
284
285
286
285
283

Friday 27

Waxing Gibbous 74%

13:39

04:43

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 OK
04 Good
05 Good
06 Good
07 Good

Sun - Rise: 06:50, Set: 19:21, Transit: 13:06. Moon - Rise: 13:39, Set: 04:43. Civil Dark: 19:48 - 06:23. Nautical Dark: 20:20 - 05:51. Astro Dark: 20:52 - 05:18

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
95
91
85
62
40
18
11
6
0

Low Clouds (% Sky Obscured)

94
94
85
70
35
15
10
15
10
14
24
20
14
7
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

92
88
83
89
94
100
95
91
91
90
95
95
66
39
9
6
3
0
0
0
0

High Clouds (% Sky Obscured)

99
99
99
100
100
100
100
100
100
99
98
95
90
87
85
62
34
3
1
0
0

ISS Passover

Visibility (miles)

9
9
9
9
7
5
3
5
7
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
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

12
13
12
25
33
39
49
52
53
42
29
6
4
2
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0.2
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

8
7
7
7
6
5
4
3
3
2
2
2
2
1
1
0
-1
-1
-1
-1
-1

Feels Like (°C)

6
5
5
5
1
1
0
0
-1
-1
-3
-3
-3
-3
-3
-3
-5
-5
-5
-5
-5

Dew Point (°C)

0
-1
-2
-3
-3
-2
-1
-2
-2
-2
-3
-4
-6
-7
-7
-8
-9
-10
-11
-12
-12

Relative Humidity (%)

58
54
52
49
55
61
69
71
72
74
69
63
58
57
57
55
53
49
46
44
42

Pressure (mb)

1018
1018
1019
1019
1020
1020
1021
1022
1023
1024
1025
1026
1026
1027
1027
1028
1028
1028
1029
1029
1030

Ozone (du)

282
284
285
287
286
286
286
287
287
288
288
289
289
291
293
295
300
306
311
318
325

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

Generated: 21/03/26 11:34:08. Forecast: 21/03/26 to 27/03/26. Timezone: UTC-4.00