Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 25

First Quarter 45%

11:02

00:53

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

Sun - Rise: 07:13, Set: 17:14, Transit: 12:14. Moon - Rise: 11:02, Set: 00:53. Civil Dark: 17:43 - 06:45. Nautical Dark: 18:14 - 06:12. Astro Dark: 18:46 - 05:40

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
99
96
95
87
85
69
54
67
87
75
72
76
80
68

Low Clouds (% Sky Obscured)

98
98
98
100
100
100
100
100
100
100
99
94
78
55
49
22
23
49
74
69
68
72
77
68

Medium Clouds (% Sky Obscured)

100
100
90
100
82
95
22
41
36
42
56
56
60
59
59
27
19
28
64
26
3
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
49
25
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
1
2
1
0
3
2
1
1
0
1
1
1
3
9
9
9
7
7
5
9
9
9

Fog (%)

4
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

Ice pellet
Ice pellet
Ice pellet
None
Ice pellet
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
42
72
33
4
4
14
7
17
5
4
4
0
1
1
1
2
0
13
2
0
1

Precipitation Amount (mm)

0.8
0.7
1.2
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

15
14
14
13
8
8
6
5
5
5
5
5
4
4
4
7
10
13
13
14
14
14
14
14

Chance of Frost

Temperature (°C)

-8
-8
-7
-7
-6
-7
-6
-6
-6
-6
-6
-6
-7
-8
-8
-6
-5
-4
-4
-4
-4
-4
-5
-6

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
94
92
94
94
94
94
94
94
94
96
96
94
94
92
92
89
87
87
87
85
85
82
80

Pressure (mb)

1011
1010
1009
1006
1009
1009
1008
1008
1008
1008
1008
1008
1009
1009
1010
1010
1010
1010
1010
1010
1010
1010
1011
1012

Ozone (du)

276
276
279
281
282
282
287
286
284
284
283
283
286
287
288
289
293
295
295
296
299
299
305
315

Monday 26

Waxing Gibbous 59%

11:40

02:09

18 OK
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 Good
09 Good
10 Good
11 Bad
12 OK
13 OK
14 Bad
15 OK
16 OK
17 Bad

Sun - Rise: 07:13, Set: 17:15, Transit: 12:14. Moon - Rise: 11:40, Set: 02:09. Civil Dark: 17:44 - 06:44. Nautical Dark: 18:15 - 06:11. Astro Dark: 18:47 - 05:39

Total Clouds (% Sky Obscured)

39
7
5
4
5
2
2
2
2
2
2
2
4
5
17
9
7
59
29
29
47
32
25
55

Low Clouds (% Sky Obscured)

38
7
5
4
4
2
2
2
1
1
2
2
2
2
2
2
2
2
2
3
7
27
25
49

Medium Clouds (% Sky Obscured)

3
0
0
0
0
0
0
0
0
0
0
0
3
2
3
3
4
59
19
18
47
24
3
0

High Clouds (% Sky Obscured)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
80
78
78
78
78
78
80
83
81
81
81
81
81
82
83
76
75
74
75
82
85
87
85

Pressure (mb)

1013
1014
1015
1016
1017
1018
1019
1020
1021
1021
1022
1022
1023
1023
1024
1024
1023
1023
1022
1020
1019
1018
1018
1017

Ozone (du)

325
337
348
360
365
356
356
354
353
347
345
344
339
340
347
350
355
349
343
341
341
344
346
346

Tuesday 27

Waxing Gibbous 70%

12:28

03:25

18 Bad
19 Bad
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 Good
09 Good
10 Bad
11 OK
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 07:12, Set: 17:16, Transit: 12:14. Moon - Rise: 12:28, Set: 03:25. Civil Dark: 17:45 - 06:43. Nautical Dark: 18:16 - 06:11. Astro Dark: 18:48 - 05:39

Total Clouds (% Sky Obscured)

73
92
1
1
2
2
1
1
1
1
1
1
1
1
1
1
52
39
93
99
100
100
100
100

Low Clouds (% Sky Obscured)

73
91
1
1
1
1
0
0
0
0
0
0
0
0
0
0
1
1
1
14
19
23
14
20

Medium Clouds (% Sky Obscured)

15
10
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
17
66
98
100
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
45
60
76
100
68
37

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

Precipitation Probability (%)

7
13
2
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
7
8
9
10
10
10
9
9
8
8
8
8
8
8
10
10
10
10
10
10
9
9
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
87
87
85
83
81
81
81
83
83
83
83
83
83
83
83
78
78
78
80
83
82
85

Pressure (mb)

1018
1018
1019
1019
1019
1019
1020
1020
1021
1021
1021
1022
1022
1023
1023
1024
1024
1023
1022
1021
1020
1020
1020
1020

Ozone (du)

350
350
353
355
357
366
388
403
406
403
389
384
380
384
384
390
388
390
400
427
446
467
487
494

Wednesday 28

Waxing Gibbous 81%

13:27

04:37

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

Sun - Rise: 07:11, Set: 17:17, Transit: 12:14. Moon - Rise: 13:27, Set: 04:37. Civil Dark: 17:46 - 06:42. Nautical Dark: 18:17 - 06:10. Astro Dark: 18:49 - 05:38

Total Clouds (% Sky Obscured)

100
70
43
25
16
7
9
9
9
9
12
16
19
16
10
5
8
11
36
53
70
83
78
71

Low Clouds (% Sky Obscured)

23
15
27
25
6
4
5
5
4
4
3
2
2
2
1
1
6
11
21
40
58
78
73
68

Medium Clouds (% Sky Obscured)

100
70
43
25
13
0
0
1
2
2
6
7
13
11
7
3
2
1
0
0
0
0
0
0

High Clouds (% Sky Obscured)

5
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
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
2
12
14
2
2
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
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-14
-15
-15
-15
-16
-16
-17
-18
-18
-18
-18
-19
-19
-19
-18
-17
-15
-14
-14
-14
-14
-14
-14
-15

Dew Point (°C)

-11
-12
-12
-13
-13
-15
-16
-17
-16
-17
-17
-17
-17
-17
-17
-15
-13
-13
-12
-10
-10
-11
-11
-12

Relative Humidity (%)

90
90
90
90
88
84
84
82
81
81
81
79
79
79
79
81
83
80
80
82
82
80
82
81

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1021
1021
1022
1022
1022
1021
1021
1021
1021
1021
1022

Ozone (du)

497
499
501
496
497
498
500
508
502
484
470
457
449
439
431
417
414
411
408
404
405
406
410
416

Thursday 29

Waxing Gibbous 89%

14:38

05:39

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

Sun - Rise: 07:10, Set: 17:19, Transit: 12:14. Moon - Rise: 14:38, Set: 05:39. Civil Dark: 17:47 - 06:41. Nautical Dark: 18:19 - 06:09. Astro Dark: 18:50 - 05:37

Total Clouds (% Sky Obscured)

65
53
37
25
34
37
10
10
5
4
4
4
4
4
4
4
14
20
28
35
40
33
34
36

Low Clouds (% Sky Obscured)

63
42
21
0
0
0
0
0
0
0
0
0
0
0
0
0
1
5
9
15
9
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
2
2
2
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
1
0
1
2
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
9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
3
2
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
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-15
-15
-17
-17
-17
-18
-20
-19
-19
-20
-20
-21
-21
-21
-21
-21
-21
-20
-20
-19
-16
-16
-16
-17

Dew Point (°C)

-13
-14
-14
-14
-14
-16
-17
-18
-19
-19
-20
-21
-21
-21
-20
-19
-17
-16
-15
-14
-13
-13
-13
-14

Relative Humidity (%)

83
85
86
90
90
88
86
81
81
80
78
78
76
77
76
76
74
76
78
80
80
81
83
83

Pressure (mb)

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

Ozone (du)

419
423
426
430
430
426
423
422
419
419
413
407
401
394
396
398
400
404
408
411
418
425
432
437

Friday 30

Waxing Gibbous 96%

15:54

06:30

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

Sun - Rise: 07:09, Set: 17:20, Transit: 12:14. Moon - Rise: 15:54, Set: 06:30. Civil Dark: 17:48 - 06:41. Nautical Dark: 18:20 - 06:08. Astro Dark: 18:51 - 05:36

Total Clouds (% Sky Obscured)

74
60
46
26
28
27
27
16
8
1
0
0
0
0
0
0
3
18
28
48
67
87
71
52

Low Clouds (% Sky Obscured)

0
0
0
1
1
6
3
1
1
0
0
0
0
0
0
0
1
2
2
13
21
29
35
44

Medium 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

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
8
7
5
7
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

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-16
-16
-17
-17
-16
-17
-17
-18
-17
-17
-18
-18
-18
-18
-18
-17
-17
-16
-15
-15
-12
-12
-12
-11

Dew Point (°C)

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

Relative Humidity (%)

83
84
86
86
88
84
84
83
83
83
82
82
82
82
83
83
85
83
83
82
82
82
84
83

Pressure (mb)

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

Ozone (du)

442
447
446
446
445
444
442
441
440
439
437
440
443
445
445
444
443
446
448
451
450
449
448
443

Saturday 31

Waxing Gibbous 99%

17:11

07:10

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

Sun - Rise: 07:08, Set: 17:21, Transit: 12:15. Moon - Rise: 17:11, Set: 07:10. Civil Dark: 17:49 - 06:40. Nautical Dark: 18:21 - 06:07. Astro Dark: 18:52 - 05:36

Total Clouds (% Sky Obscured)

31
23
15
6
6
5
5
5
4
4
4
4
4
4
4
4
5
6
6

Low Clouds (% Sky Obscured)

28
20
12
4
3
2
2
1
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

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

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
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-9
-11
-11
-11
-11
-12
-13
-14
-15
-16
-16
-17
-17
-17
-15
-13
-11
-9
-7

Feels Like (°C)

-11
-11
-15
-14
-14
-14
-14
-14
-18
-17
-18
-18
-18
-18
-19
-19
-18
-17
-16

Dew Point (°C)

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

Relative Humidity (%)

85
86
85
85
83
81
83
81
82
83
82
82
81
81
80
81
80
80
80

Pressure (mb)

1027
1028
1028
1029
1029
1029
1030
1030
1030
1030
1031
1031
1032
1032
1032
1033
1033
1033
1033

Ozone (du)

438
433
433
433
433
431
430
428
415
402
389
388
388
388
384
380
376
373
369

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

Generated: 25/01/26 18:35:10. Forecast: 25/01/26 to 31/01/26. Timezone: UTC-5.00