Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waning Gibbous 64%

00:05

10:34

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

Sun - Rise: 07:17, Set: 17:07, Transit: 12:12. Moon - Rise: 00:05, Set: 10:34. Civil Dark: 17:36 - 06:48. Nautical Dark: 18:09 - 06:15. Astro Dark: 18:41 - 05:43

Total Clouds (% Sky Obscured)

69
50
39
4
2
2
3
3
3
7
21
52
34
79
51
33
8
1
0
0
0
0
0
5

Low Clouds (% Sky Obscured)

3
3
4
4
2
2
3
3
3
6
13
16
22
66
35
33
7
1
0
0
0
0
0
3

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
2
29
6
32
34
4
3
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
3
29
2
2
0
0
0
0
0
0
0
0
0
0

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
11
3
0
0
0
0
0
0
0
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-10
-12
-12
-12
-12
-12
-11
-11
-11
-11
-10
-10
-11
-10
-11
-11
-11
-11
-12
-13
-13
-13
-13
-13

Dew Point (°C)

-9
-10
-11
-11
-11
-11
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-11
-12
-12
-13
-14
-14
-14
-14

Relative Humidity (%)

82
79
79
77
79
80
82
82
82
77
73
69
67
67
67
69
69
68
70
71
68
68
71
75

Pressure (mb)

1012
1013
1015
1017
1018
1019
1020
1021
1023
1024
1025
1026
1026
1026
1026
1027
1028
1029
1030
1031
1032
1033
1033
1034

Ozone (du)

341
340
343
344
344
343
345
349
345
345
344
345
345
341
344
347
350
357
360
361
360
362
364
369

Tuesday 21

Third Quarter 54%

00:05

10:55

00 Good
01 Good
02 Good
03 Good
04 OK
05 OK
06 OK
07 OK
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 OK
23 Bad

Sun - Rise: 07:17, Set: 17:08, Transit: 12:13. Moon - Rise: 00:05, Set: 10:55. Civil Dark: 17:37 - 06:48. Nautical Dark: 18:10 - 06:15. Astro Dark: 18:42 - 05:43

Total Clouds (% Sky Obscured)

3
5
18
12
45
40
40
35
59
84
92
90
93
100
99
99
100
97
100
100
100
86
29
73

Low Clouds (% Sky Obscured)

2
3
2
3
2
2
2
17
25
25
30
29
30
30
30
35
35
38
33
7
3
3
29
73

Medium Clouds (% Sky Obscured)

0
4
11
4
10
40
40
35
59
84
92
90
93
100
99
99
100
97
100
34
40
49
0
0

High Clouds (% Sky Obscured)

0
0
13
10
35
35
40
35
40
50
5
0
0
0
0
0
67
30
75
100
100
30
0
0

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
2
1
0
0
0
0
0
1
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)

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

Chance of Frost

Temperature (°C)

-11
-11
-11
-12
-12
-12
-12
-12
-12
-11
-10
-9
-9
-8
-8
-8
-8
-8
-8
-8
-8
-9
-9
-9

Feels Like (°C)

-13
-14
-14
-15
-15
-16
-17
-17
-17
-16
-16
-14
-14
-13
-13
-13
-13
-13
-12
-12
-12
-12
-12
-12

Dew Point (°C)

-13
-14
-14
-15
-15
-15
-15
-16
-17
-17
-16
-16
-16
-15
-14
-13
-13
-12
-12
-12
-12
-12
-11
-11

Relative Humidity (%)

80
80
78
78
78
78
76
75
69
62
60
57
56
58
63
65
68
72
72
77
77
77
80
82

Pressure (mb)

1034
1034
1034
1034
1034
1035
1035
1036
1036
1036
1036
1036
1035
1034
1033
1032
1032
1032
1032
1032
1032
1032
1033
1032

Ozone (du)

368
367
367
368
369
366
360
357
353
357
363
374
383
396
406
419
420
425
430
432
440
448
452
446

Wednesday 22

Waning Crescent 44%

01:06

11:19

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

Sun - Rise: 07:16, Set: 17:09, Transit: 12:13. Moon - Rise: 01:06, Set: 11:19. Civil Dark: 17:39 - 06:47. Nautical Dark: 18:11 - 06:14. Astro Dark: 18:43 - 05:42

Total Clouds (% Sky Obscured)

27
37
68
35
1
0
0
0
0
1
1
0
0
1
2
17
85
100
87
63
55
12
26
41

Low Clouds (% Sky Obscured)

22
36
68
32
1
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
30
100
29
30
55
6
9
15

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
10
49
100
86
60
30
0
0
0

ISS Passover

Visibility (miles)

9
9
0
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
19
6
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
4
6
6
7
8
9
8
8
8
8
8
7
6
5
5
4
3
3
3
4
4
4
4

Chance of Frost

Temperature (°C)

-9
-9
-10
-10
-10
-11
-12
-12
-13
-12
-11
-10
-10
-9
-9
-8
-9
-9
-9
-9
-9
-10
-10
-10

Feels Like (°C)

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

Dew Point (°C)

-12
-11
-11
-13
-13
-14
-16
-17
-18
-18
-18
-17
-17
-17
-16
-16
-15
-15
-15
-14
-14
-14
-14
-14

Relative Humidity (%)

82
85
88
77
78
75
67
66
63
61
57
55
54
52
53
54
58
61
63
68
69
69
69
71

Pressure (mb)

1032
1032
1032
1032
1032
1033
1033
1034
1035
1035
1036
1035
1035
1034
1033
1033
1033
1033
1033
1034
1034
1033
1033
1033

Ozone (du)

439
436
431
424
418
417
411
410
407
404
401
398
397
395
392
393
398
397
392
389
389
388
387
385

Thursday 23

Waning Crescent 35%

02:09

11:47

00 Bad
01 Bad
02 OK
03 OK
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 OK
19 OK
20 Good
21 Good
22 Good
23 Good

Sun - Rise: 07:15, Set: 17:11, Transit: 12:13. Moon - Rise: 02:09, Set: 11:47. Civil Dark: 17:40 - 06:46. Nautical Dark: 18:12 - 06:14. Astro Dark: 18:44 - 05:42

Total Clouds (% Sky Obscured)

56
54
46
44
75
90
100
100
100
100
100
100
100
99
98
81
80
60
42
36
11
5
4
2

Low Clouds (% Sky Obscured)

0
0
1
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

22
54
46
44
53
68
60
63
81
99
99
97
70
45
23
1
1
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

1
0
0
0
33
68
100
100
100
100
100
100
100
99
98
75
79
60
42
36
9
5
0
0

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
1
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-12
-13
-14
-14
-14
-14
-14
-14
-14
-13
-11
-10
-9
-8
-7
-7
-5
-7
-8
-8
-8
-7
-8
-8

Dew Point (°C)

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

Relative Humidity (%)

69
68
64
64
65
66
66
68
68
65
64
61
58
56
56
58
63
73
78
79
81
82
82
80

Pressure (mb)

1032
1032
1031
1031
1030
1030
1029
1029
1029
1029
1029
1028
1027
1025
1024
1024
1023
1023
1022
1022
1022
1021
1021
1020

Ozone (du)

383
381
381
382
381
381
381
383
382
378
376
375
369
368
371
374
374
371
370
366
366
362
358
353

Friday 24

Waning Crescent 26%

03:13

12:22

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

Sun - Rise: 07:15, Set: 17:12, Transit: 12:13. Moon - Rise: 03:13, Set: 12:22. Civil Dark: 17:41 - 06:46. Nautical Dark: 18:13 - 06:13. Astro Dark: 18:45 - 05:41

Total Clouds (% Sky Obscured)

2
4
4
25
6
2
3
4
4
4
5
5
6
17
23
30
27
21
16
20
30
35
31
27

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
1
3
4
17
23
30
27
21
16
20
30
35
31
23

Medium Clouds (% Sky Obscured)

0
0
1
20
2
0
0
0
0
0
0
0
0
0
0
0
0
0
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
0
0
0
0

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
77
80
82
84
85
85
87
87
81
75
69
67
65
67
70
72
74
75
78
78
78
79
81

Pressure (mb)

1019
1019
1018
1018
1018
1017
1017
1017
1017
1017
1018
1017
1017
1016
1016
1016
1016
1017
1018
1018
1019
1019
1020
1020

Ozone (du)

356
356
356
357
356
356
356
356
354
354
355
357
362
367
360
354
348
345
341
337
340
342
345
350

Saturday 25

Waning Crescent 17%

04:17

13:06

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

Sun - Rise: 07:14, Set: 17:13, Transit: 12:13. Moon - Rise: 04:17, Set: 13:06. Civil Dark: 17:42 - 06:45. Nautical Dark: 18:15 - 06:12. Astro Dark: 18:47 - 05:40

Total Clouds (% Sky Obscured)

17
13
8
2
21
43
64
43
21
0
2
11
16
21
37
42
63
81
100
84
69
51
65
73

Low Clouds (% Sky Obscured)

9
4
1
0
0
0
0
0
0
0
0
0
1
5
12
22
33
45
54
39
24
10
19
29

Medium Clouds (% Sky Obscured)

0
0
0
0
19
40
64
43
21
0
2
11
16
14
10
5
35
66
96
70
44
17
25
35

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
2
11
5
6
6
7
37
64
88
69
44
17
12
8

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-5
-5
-7
-7
-7
-6
-7
-7
-8
-8
-8
-8
-7
-8
-5
-5
-5
-5
-6
-6
-7
-6
-6
-6

Dew Point (°C)

-7
-7
-7
-8
-8
-8
-8
-9
-9
-9
-9
-9
-8
-8
-8
-7
-6
-6
-6
-5
-6
-5
-6
-6

Relative Humidity (%)

81
81
81
81
81
81
79
77
74
70
68
63
61
57
61
63
67
70
72
75
74
75
74
74

Pressure (mb)

1020
1021
1021
1022
1022
1023
1024
1025
1026
1027
1028
1027
1027
1027
1027
1027
1027
1027
1028
1028
1028
1027
1027
1027

Ozone (du)

356
361
362
362
363
357
351
345
344
343
342
338
335
332
329
326
323
322
320
319
325
331
337
341

Sunday 26

Waning Crescent 10%

05:18

14:00

Sun - Rise: 07:13, Set: 17:14, Transit: 12:14. Moon - Rise: 05:18, Set: 14:00. Civil Dark: 17:43 - 06:44. Nautical Dark: 18:16 - 06:12. Astro Dark: 18:48 - 05:40

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: 20/01/25 00:21:35. Forecast: 20/01/25 to 26/01/25. Timezone: UTC-5.00