Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 30

Waxing Gibbous 96%

14:38

06:30

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

Sun - Rise: 07:09, Set: 17:19, Transit: 12:14. Moon - Rise: 14:38, Set: 06:30. Civil Dark: 17:47 - 06:41. Nautical Dark: 18:20 - 06:08. Astro Dark: 18:51 - 05:36

Total Clouds (% Sky Obscured)

51
52
49
22
23
32
44
33
8
6
9
14
30
37
19
23
45
63
69
74
86
96
95
100

Low Clouds (% Sky Obscured)

51
42
3
5
6
6
8
8
3
2
2
2
2
2
2
2
2
1
1
1
3
3
23
45

Medium Clouds (% Sky Obscured)

0
0
0
0
23
21
29
21
4
2
5
12
28
37
12
13
45
63
69
74
86
96
95
100

High Clouds (% Sky Obscured)

2
1
1
1
1
2
2
2
1
2
2
2
0
0
0
16
30
50
60
6
9
0
10
78

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
11
9
5
4
4
4
4
4
4
5
4
5
4
4
5
5
5
6
7
7
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
74
77
80
86
86
84
82
80
80
79
79
79
79
79
79
79
79
79
79
78
76
78
80

Pressure (mb)

1024
1023
1023
1024
1024
1024
1024
1025
1025
1025
1025
1024
1025
1024
1024
1024
1024
1024
1024
1024
1024
1024
1022
1021

Ozone (du)

371
375
373
372
370
367
362
360
360
362
363
365
364
367
370
376
386
395
408
422
428
430
432
431

Saturday 31

Waxing Gibbous 99%

15:54

07:10

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
11 Bad
12 Bad
13 Bad

Sun - Rise: 07:08, Set: 17:20, Transit: 12:15. Moon - Rise: 15:54, Set: 07:10. Civil Dark: 17:48 - 06:40. Nautical Dark: 18:21 - 06:07. Astro Dark: 18:52 - 05:36

Total Clouds (% Sky Obscured)

100
100
100
87
82
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
96
100

Low Clouds (% Sky Obscured)

50
50
34
2
39
5
3
4
2
2
1
2
2
2
2
2
3
2
2
2
2
2
1
1

Medium Clouds (% Sky Obscured)

100
100
100
87
82
100
100
100
100
100
100
100
100
100
99
100
100
46
45
100
57
44
81
96

High Clouds (% Sky Obscured)

87
63
37
35
41
80
100
45
84
23
58
100
2
100
100
100
100
100
100
100
100
98
96
97

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
5
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
1
13
1
0
0
0
0
1
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
6
7
7
4
6
9
9
11
10
10
11
12
11
12
11
11
13
12
13
14
14
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
79
85
87
90
88
85
85
87
85
85
83
81
81
79
78
81
79
79
81
81
82
80
82

Pressure (mb)

1020
1020
1019
1019
1019
1019
1018
1018
1017
1016
1015
1015
1014
1013
1012
1012
1012
1012
1012
1012
1012
1011
1011
1010

Ozone (du)

431
431
432
434
436
442
443
444
444
446
449
454
458
452
450
447
444
433
428
427
429
437
441
443

Sunday 1

Full Moon 100%

17:11

07:42

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

Sun - Rise: 07:07, Set: 17:21, Transit: 12:15. Moon - Rise: 17:11, Set: 07:42. Civil Dark: 17:49 - 06:39. Nautical Dark: 18:22 - 06:07. Astro Dark: 18:53 - 05:35

Total Clouds (% Sky Obscured)

100
100
100
90
85
67
59
46
64
42
25
20
1
5
4
2
1
1
2
1
1
1
1
1

Low Clouds (% Sky Obscured)

1
2
1
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
1
0
1
1
1

Medium Clouds (% Sky Obscured)

94
100
100
87
85
60
55
9
5
29
19
1
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
77
76
14
19
35
62
8
12
16
1
3
3
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-11
-11
-11
-12
-11
-12
-13
-14
-14
-15
-14
-14
-14
-15
-14
-14
-14
-14
-13
-12
-11
-9
-8
-6

Dew Point (°C)

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

Relative Humidity (%)

82
82
80
79
79
79
77
77
78
78
80
80
81
81
81
81
81
81
82
82
80
81
81
81

Pressure (mb)

1010
1010
1010
1011
1012
1012
1012
1013
1014
1014
1014
1015
1015
1015
1016
1016
1017
1018
1018
1019
1019
1019
1019
1018

Ozone (du)

447
453
457
459
462
465
469
470
469
467
464
467
467
469
473
481
484
476
468
464
462
457
454
445

Monday 2

Waning Gibbous 98%

18:25

08:08

14 Good
15 Good
16 Good
17 OK
18 OK
19 OK
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 OK
11 OK
12 Good
13 OK

Sun - Rise: 07:06, Set: 17:22, Transit: 12:15. Moon - Rise: 18:25, Set: 08:08. Civil Dark: 17:51 - 06:38. Nautical Dark: 18:23 - 06:06. Astro Dark: 18:55 - 05:34

Total Clouds (% Sky Obscured)

1
1
17
27
38
36
43
53
56
83
60
61
61
62
55
59
71
51
61
54
40
27
3
26

Low Clouds (% Sky Obscured)

1
1
0
1
2
3
2
2
2
1
1
1
1
1
19
39
61
42
27
10
6
3
0
11

Medium Clouds (% Sky Obscured)

0
0
13
23
38
36
43
48
56
78
50
55
52
54
54
59
60
50
44
34
21
10
0
0

High Clouds (% Sky Obscured)

0
0
17
27
38
36
43
53
56
25
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
11
10
8
6
6
6
6
5
5
5
5
5
5
5
5
5
5
6
7
9
9
9
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-6
-5
-5
-5
-7
-8
-8
-9
-9
-10
-11
-9
-10
-10
-11
-11
-11
-12
-9
-8
-7
-6
-5
-3

Dew Point (°C)

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

Relative Humidity (%)

79
79
79
81
90
89
87
87
87
88
89
89
87
88
87
88
88
88
87
87
86
86
84
86

Pressure (mb)

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

Ozone (du)

425
418
427
419
410
405
410
417
437
418
413
409
399
392
387
381
376
374
375
374
375
377
372
368

Tuesday 3

Waning Gibbous 93%

19:35

08:32

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
11 Bad
12 Bad
13 Bad

Sun - Rise: 07:05, Set: 17:23, Transit: 12:15. Moon - Rise: 19:35, Set: 08:32. Civil Dark: 17:52 - 06:37. Nautical Dark: 18:24 - 06:05. Astro Dark: 18:56 - 05:33

Total Clouds (% Sky Obscured)

37
44
53
45
59
45
60
92
88
88
90
90
89
83
86
94
100
100
100
100
99
98
96
97

Low Clouds (% Sky Obscured)

22
33
34
36
37
45
52
60
40
20
0
13
13
9
10
9
7
27
28
29
42
56
69
73

Medium Clouds (% Sky Obscured)

0
0
0
0
0
2
0
0
3
36
21
66
66
73
68
68
73
81
90
98
94
89
83
87

High Clouds (% Sky Obscured)

0
0
7
17
51
23
42
75
70
70
70
86
77
68
79
89
100
93
95
96
67
33
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 (%)

11
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
4
16

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
84
86
89
94
91
87
90
90
90
90
92
92
90
92
90
90
89
87
85
82
82
81
81

Pressure (mb)

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

Ozone (du)

366
366
361
362
363
365
365
366
366
364
364
364
365
366
366
367
367
367
369
370
372
373
374
376

Wednesday 4

Waning Gibbous 87%

20:42

08:53

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
11 Bad
12 Bad
13 Bad

Sun - Rise: 07:04, Set: 17:25, Transit: 12:15. Moon - Rise: 20:42, Set: 08:53. Civil Dark: 17:53 - 06:36. Nautical Dark: 18:25 - 06:04. Astro Dark: 18:57 - 05:32

Total Clouds (% Sky Obscured)

98
100
99
99
98
99
99
100
94
92
92
91
99
98
100
100
100
100
100
95
95
85
85
79

Low Clouds (% Sky Obscured)

76
80
78
77
75
75
74
74
64
56
52
50
49
60
80
95
100
99
99
95
94
85
85
69

Medium Clouds (% Sky Obscured)

92
97
97
96
95
97
98
100
93
92
92
91
99
98
100
100
100
100
100
95
84
79
69
51

High Clouds (% Sky Obscured)

0
0
0
0
0
8
16
51
62
82
90
91
99
98
100
95
90
60
27
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
6
3
0
0
0
0
0
0
0
0
0
0
3
6
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None

Precipitation Probability (%)

19
16
22
24
21
26
28
22
32
37
40
51
59
66
62
57
50
41
40
36
37
40
39
26

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.1
0.2
0.3
0.3
0.3
0.3
0.2
0.1
0.1
0.1
0.1
0.1
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-2
-2
-2
-2
-3
-3
-3
-3
-3
-3
-3
-4
-4
-4
-4
-5
-5
-5
-5
-5
-4
-4
-3
-2

Feels Like (°C)

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

Dew Point (°C)

-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-5
-5
-6
-6
-6
-5
-5
-5
-4
-4

Relative Humidity (%)

81
83
84
87
92
96
96
94
94
96
96
96
96
96
96
96
94
94
92
94
94
91
91
89

Pressure (mb)

1023
1023
1022
1022
1022
1022
1022
1021
1021
1020
1020
1019
1019
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1016

Ozone (du)

374
372
371
372
373
374
379
383
388
393
397
402
405
408
411
414
418
422
421
421
421
419
417
415

Thursday 5

Waning Gibbous 79%

21:46

09:15

14 Bad
15 Bad
16 Bad
17 Bad
18 OK
19 OK
20 Bad
21 Bad
22 Bad
23 Bad
00 OK
01 OK
02 OK
03 Good
04 OK
05 Bad
06 Bad

Sun - Rise: 07:03, Set: 17:26, Transit: 12:15. Moon - Rise: 21:46, Set: 09:15. Civil Dark: 17:54 - 06:35. Nautical Dark: 18:26 - 06:03. Astro Dark: 18:58 - 05:31

Total Clouds (% Sky Obscured)

64
59
51
40
28
37
48
64
51
34
25
22
16
11
34
52
73

Low Clouds (% Sky Obscured)

34
15
7
8
3
4
17
25
20
14
11
8
7
3
3
4
5

Medium Clouds (% Sky Obscured)

33
15
11
7
2
1
0
0
0
0
0
0
0
4
24
43
63

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
3
5
7
7
10
10
9

ISS Passover

Visibility (miles)

9
9
9
9
9
9
7
6
4
6
7
9
9
9
9
9
9

Fog (%)

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

Precipitation Probability (%)

14
0
4
6
1
1
2
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-2
-2
-2
-4
-5
-7
-7
-7
-8
-8
-9
-10
-10
-10
-11
-10
-9

Feels Like (°C)

-7
-6
-6
-6
-6
-6
-10
-9
-9
-9
-9
-9
-12
-12
-12
-12
-13

Dew Point (°C)

-4
-3
-3
-5
-6
-8
-8
-8
-9
-10
-10
-11
-12
-12
-13
-12
-11

Relative Humidity (%)

89
89
89
91
92
92
94
94
94
90
90
88
86
85
83
83
85

Pressure (mb)

1015
1015
1014
1014
1015
1015
1014
1014
1014
1013
1013
1012
1012
1011
1011
1010
1010

Ozone (du)

415
415
414
418
421
425
420
414
409
406
402
399
395
390
386
387
388

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

Generated: 30/01/26 14:37:42. Forecast: 30/01/26 to 05/02/26. Timezone: UTC-5.00