Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 18

New Moon 1%

08:04

18:00

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

Sun - Rise: 07:18, Set: 17:06, Transit: 12:12. Moon - Rise: 08:04, Set: 18:00. Civil Dark: 17:35 - 06:49. Nautical Dark: 18:07 - 06:16. Astro Dark: 18:39 - 05:44

Total Clouds (% Sky Obscured)

100
100
95
88
82
76
4
20
4
6
25
28
7
4
3
1
2
30
29
81
75
73
52
21

Low Clouds (% Sky Obscured)

91
86
42
88
65
2
3
3
4
3
2
4
4
4
3
1
2
27
29
76
69
68
48
21

Medium Clouds (% Sky Obscured)

100
82
17
22
37
50
3
15
0
5
25
27
5
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

30
25
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
20
3

ISS Passover

Visibility (miles)

1
1
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

Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

80
54
6
0
0
0
0
0
0
0
0
0
0
0
0
0
4
0
4
13
7
1
0
0

Precipitation Amount (mm)

0.5
0.2
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
5
5
9
9
8
8
8
8
8
7
6
5
6
7
8
9
10
11
10
10
10
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
92
87
86
82
81
81
80
80
82
80
80
82
85
85
79
78
79
78
75
75
71
70
66

Pressure (mb)

1013
1013
1012
1012
1012
1012
1012
1012
1013
1014
1014
1014
1015
1015
1015
1015
1016
1015
1014
1013
1013
1014
1014
1015

Ozone (du)

363
370
376
376
379
381
380
375
378
381
379
374
360
355
355
353
353
354
354
355
352
352
350
353

Monday 19

Waxing Crescent 4%

08:32

18:00

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

Sun - Rise: 07:17, Set: 17:07, Transit: 12:12. Moon - Rise: 08:32, Set: 18:00. Civil Dark: 17:36 - 06:48. Nautical Dark: 18:08 - 06:15. Astro Dark: 18:40 - 05:43

Total Clouds (% Sky Obscured)

17
20
34
22
5
2
0
0
0
0
0
0
5
77
86
25
8
2
27
33
27
3
2
1

Low Clouds (% Sky Obscured)

17
18
31
19
2
0
0
0
0
0
0
0
0
0
0
0
0
2
27
33
27
3
2
1

Medium Clouds (% Sky Obscured)

0
0
0
0
4
0
0
0
0
0
0
0
5
77
86
14
5
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-6
-7
-8
-9
-10
-12
-11
-12
-12
-13
-13
-13
-13
-14
-16
-15
-13
-12
-12
-12
-12
-11
-10
-10

Dew Point (°C)

-6
-7
-8
-9
-9
-11
-12
-12
-13
-13
-13
-13
-14
-14
-14
-14
-14
-13
-13
-13
-12
-12
-12
-12

Relative Humidity (%)

71
69
71
70
72
68
70
71
71
71
71
72
72
72
69
68
64
62
59
60
60
61
62
63

Pressure (mb)

1016
1018
1019
1020
1021
1022
1023
1023
1024
1024
1025
1025
1026
1027
1027
1028
1028
1029
1028
1028
1028
1028
1029
1030

Ozone (du)

354
356
361
369
372
378
378
381
385
388
392
394
396
398
403
406
405
407
410
414
416
423
422
420

Tuesday 20

Waxing Crescent 9%

08:57

19:07

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

Sun - Rise: 07:17, Set: 17:08, Transit: 12:12. Moon - Rise: 08:57, Set: 19:07. Civil Dark: 17:37 - 06:48. Nautical Dark: 18:09 - 06:15. Astro Dark: 18:41 - 05:43

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
1
2
2
2
1
21
37
27
41
79
66
59
44
49
40

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
20
15
9
0
0
0
0
0
2
5

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
0
0
0
0
0
2
37
27
41
26
23
48
18
49
13

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
2
1
1
1
1
6
20
15
6
2
1
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)

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

Chance of Frost

Temperature (°C)

-7
-7
-7
-8
-8
-8
-8
-8
-9
-9
-9
-9
-9
-9
-8
-7
-5
-4
-2
-1
-1
0
0
-0

Feels Like (°C)

-10
-11
-11
-11
-11
-10
-10
-11
-10
-10
-10
-10
-10
-10
-11
-10
-10
-9
-8
-5
-4
-5
-4
-5

Dew Point (°C)

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

Relative Humidity (%)

64
64
64
66
67
70
69
69
71
75
75
77
75
75
71
64
60
57
50
47
47
51
52
54

Pressure (mb)

1031
1031
1032
1033
1033
1033
1033
1033
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1032
1031
1029
1028
1027
1027

Ozone (du)

421
418
416
413
410
401
396
391
387
374
367
361
358
355
351
350
352
354
358
353
350
350
351
350

Wednesday 21

Waxing Crescent 16%

09:20

20:14

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

Sun - Rise: 07:16, Set: 17:09, Transit: 12:13. Moon - Rise: 09:20, Set: 20:14. Civil Dark: 17:38 - 06:47. Nautical Dark: 18:10 - 06:14. Astro Dark: 18:42 - 05:42

Total Clouds (% Sky Obscured)

37
54
68
75
53
44
39
30
39
49
53
64
68
49
27
16
42
50
62
50
42
8
7
11

Low Clouds (% Sky Obscured)

8
5
3
2
9
16
21
29
39
49
53
59
48
31
17
1
15
37
52
36
17
0
7
11

Medium Clouds (% Sky Obscured)

13
20
33
39
39
35
39
30
39
45
53
38
52
41
20
16
25
15
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
33
44
39
30
39
49
53
25
0
0
0
1
25
15
17
16
42
6
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
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
1
1
2
37
53
68
63
59
49
36
22
0
0
0
0
0
3
4
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-9
-9
-9
-8
-7
-7
-7
-6
-5
-5
-5
-5
-4
-4
-4
-3
-3
-3
-2
-2
-1
-1
-1
-2

Relative Humidity (%)

55
55
55
57
60
60
62
66
68
70
72
74
75
77
77
73
70
68
68
68
68
71
72
70

Pressure (mb)

1026
1026
1026
1025
1024
1023
1022
1022
1021
1020
1018
1018
1017
1017
1017
1017
1017
1016
1015
1015
1015
1015
1015
1016

Ozone (du)

351
352
350
349
350
349
348
350
349
350
353
352
352
352
353
357
363
368
375
379
378
377
375
377

Thursday 22

Waxing Crescent 25%

09:43

21:22

18 OK
19 OK
20 OK
21 OK
22 OK
23 OK
00 Good
01 OK
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

Sun - Rise: 07:16, Set: 17:10, Transit: 12:13. Moon - Rise: 09:43, Set: 21:22. Civil Dark: 17:39 - 06:47. Nautical Dark: 18:11 - 06:14. Astro Dark: 18:43 - 05:42

Total Clouds (% Sky Obscured)

16
17
19
19
20
19
16
19
22
28
64
93
94
96
98
100
100
100
100
96
90
76
84
91

Low Clouds (% Sky Obscured)

16
17
19
19
20
19
16
19
22
28
64
54
37
25
12
0
0
0
1
4
8
12
8
4

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
4
35
47
70
100
100
100
100
86
71
56
69
82

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
4
4
38
70
70
84
91
95
99
99
100
96
90
76
84
82

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-2
-3
-4
-4
-5
-5
-6
-6
-7
-8
-8
-9
-10
-10
-10
-10
-10
-10
-9
-9
-7
-7
-7
-7

Dew Point (°C)

-3
-6
-7
-7
-7
-9
-9
-10
-11
-12
-12
-12
-13
-13
-14
-14
-14
-13
-13
-13
-13
-13
-12
-12

Relative Humidity (%)

73
60
61
67
69
62
60
59
57
54
53
53
51
50
48
46
44
43
41
39
40
40
41
44

Pressure (mb)

1017
1018
1019
1020
1020
1021
1021
1021
1022
1022
1022
1023
1024
1025
1025
1025
1025
1025
1024
1024
1023
1023
1022
1023

Ozone (du)

378
377
373
375
374
372
373
372
368
365
363
361
362
363
366
368
371
363
354
346
338
330
322
320

Friday 23

Waxing Crescent 36%

10:06

22:30

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 OK
10 OK
11 OK
12 Bad
13 OK
14 OK
15 OK
16 OK
17 OK

Sun - Rise: 07:15, Set: 17:12, Transit: 12:13. Moon - Rise: 10:06, Set: 22:30. Civil Dark: 17:40 - 06:46. Nautical Dark: 18:12 - 06:13. Astro Dark: 18:44 - 05:41

Total Clouds (% Sky Obscured)

98
97
98
96
97
98
100
100
100
100
99
97
96
70
44
18
40
43
53
42
37
32
33
35

Low Clouds (% Sky Obscured)

0
0
0
0
1
5
3
1
1
0
14
28
42
28
14
0
0
0
0
0
0
0
1
3

Medium Clouds (% Sky Obscured)

90
78
85
94
96
98
100
90
85
91
91
90
90
66
42
18
13
6
1
5
3
0
0
0

High Clouds (% Sky Obscured)

72
63
55
47
63
77
99
99
99
100
69
44
43
35
24
5
17
27
43
42
37
32
33
35

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

Chance of Frost

Temperature (°C)

-2
-2
-3
-3
-4
-5
-5
-6
-7
-7
-7
-8
-9
-10
-10
-10
-10
-10
-9
-9
-9
-9
-9
-9

Feels Like (°C)

-7
-6
-8
-8
-8
-8
-8
-8
-13
-13
-12
-13
-14
-15
-16
-16
-16
-16
-17
-16
-14
-14
-14
-14

Dew Point (°C)

-12
-11
-11
-11
-11
-14
-16
-18
-19
-19
-20
-20
-21
-22
-23
-25
-26
-26
-26
-25
-26
-26
-25
-25

Relative Humidity (%)

47
51
51
53
55
49
42
38
37
36
35
36
36
36
32
28
25
24
25
24
24
24
24
25

Pressure (mb)

1023
1023
1023
1023
1022
1023
1023
1023
1023
1023
1023
1025
1026
1027
1028
1029
1030
1030
1029
1029
1029
1030
1030
1031

Ozone (du)

317
315
314
313
312
311
309
308
309
310
311
312
313
315
313
311
309
307
304
302
304
305
307
304

Saturday 24

Waxing Crescent 47%

10:32

23:40

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

Sun - Rise: 07:14, Set: 17:13, Transit: 12:13. Moon - Rise: 10:32, Set: 23:40. Civil Dark: 17:42 - 06:45. Nautical Dark: 18:13 - 06:13. Astro Dark: 18:45 - 05:41

Total Clouds (% Sky Obscured)

41
41
40
43
31
16
0
0
0
0
3
5
7
9
11
12
10
8
7

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

0
0
5
10
13
7
0
0
0
0
2
4
5
6
7
8
9
7
7

High Clouds (% Sky Obscured)

41
41
40
43
31
16
0
0
0
0
0
0
0
4
8
11
4
3
3

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

0
1
2
1
2
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-14
-14
-15
-15
-15
-15
-16
-16
-16
-16
-15
-15
-15
-15
-15
-15
-15
-14
-14

Dew Point (°C)

-25
-25
-25
-25
-25
-25
-25
-25
-25
-25
-25
-25
-24
-24
-24
-24
-24
-24
-25

Relative Humidity (%)

26
28
28
30
30
31
32
32
33
34
35
35
36
37
35
34
32
29
26

Pressure (mb)

1032
1032
1033
1033
1033
1033
1033
1033
1033
1033
1032
1032
1032
1032
1032
1032
1031
1030
1029

Ozone (du)

301
298
300
302
304
307
309
311
314
317
320
322
324
327
329
332
335
338
341

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

Generated: 18/01/26 18:26:47. Forecast: 18/01/26 to 24/01/26. Timezone: UTC-5.00