Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 8

Waning Gibbous 51%

00:56

10:31

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 Good
12 Good
13 Good
14 Good
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 07:00, Set: 17:31, Transit: 12:15. Moon - Rise: 00:56, Set: 10:31. Civil Dark: 17:59 - 06:32. Nautical Dark: 18:30 - 06:00. Astro Dark: 19:02 - 05:28

Total Clouds (% Sky Obscured)

2
2
2
2
3
2
2
0
0
0
0
0
2
2
8
12
8
93
100
100
100
100
100
88

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
1
0
93
98
100
98
94
85

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
1
0
5
4
4
93
100
100
90
100
100
80

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

Chance of Frost

Temperature (°C)

-14
-14
-15
-14
-14
-14
-14
-14
-14
-14
-13
-11
-9
-7
-5
-4
-3
-2
-2
-3
-4
-4
-4
-5

Feels Like (°C)

-18
-18
-18
-18
-18
-18
-17
-17
-17
-17
-16
-15
-12
-11
-8
-7
-6
-5
-6
-7
-8
-7
-8
-8

Dew Point (°C)

-18
-18
-18
-17
-17
-17
-17
-17
-18
-17
-17
-15
-14
-11
-9
-8
-7
-6
-5
-5
-5
-5
-6
-6

Relative Humidity (%)

74
74
73
74
76
75
76
74
73
74
74
72
71
73
73
73
73
75
81
89
92
91
90
89

Pressure (mb)

1027
1028
1027
1027
1027
1027
1027
1027
1027
1028
1028
1028
1028
1028
1027
1026
1025
1025
1024
1024
1025
1025
1025
1025

Ozone (du)

391
392
391
389
386
383
379
375
374
370
366
363
358
358
361
362
360
361
363
362
361
356
350
349

Monday 9

Third Quarter 41%

01:58

11:05

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
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 06:58, Set: 17:32, Transit: 12:15. Moon - Rise: 01:58, Set: 11:05. Civil Dark: 18:00 - 06:31. Nautical Dark: 18:32 - 05:59. Astro Dark: 19:03 - 05:27

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
96
96
96
92
99
100
100
100
100
100
100
99
100
99
93
100

Low Clouds (% Sky Obscured)

2
2
2
3
0
3
10
2
4
3
39
25
3
7
4
2
2
2
3
2
33
64
84
90

Medium Clouds (% Sky Obscured)

35
11
4
81
100
100
100
84
83
94
72
57
52
99
100
94
100
100
33
96
93
97
91
33

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
96
83
40
55
54
68
100
100
100
100
100
100
96
81
54
52
81

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
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
16
39
32
64

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
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-6
-6
-7
-7
-7
-7
-7
-6
-6
-6
-6
-4
-3
-1
-0
0
1
1
1
0
-0
-0
0
1

Feels Like (°C)

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

Dew Point (°C)

-7
-8
-9
-9
-9
-9
-9
-9
-9
-9
-9
-8
-6
-5
-3
-2
-1
-1
-0
-1
-2
-2
-1
0

Relative Humidity (%)

89
87
84
83
83
82
84
82
84
84
79
78
75
77
80
84
89
89
91
89
91
91
91
98

Pressure (mb)

1024
1023
1023
1023
1023
1023
1022
1022
1022
1022
1022
1022
1021
1020
1019
1017
1016
1015
1013
1012
1012
1011
1009
1009

Ozone (du)

351
356
359
358
358
357
356
352
349
347
346
341
336
332
329
325
322
322
320
320
320
323
325
325

Tuesday 10

Waning Crescent 32%

02:59

11:47

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
18 OK
19 OK
20 OK
21 Bad

Sun - Rise: 06:57, Set: 17:33, Transit: 12:15. Moon - Rise: 02:59, Set: 11:47. Civil Dark: 18:01 - 06:29. Nautical Dark: 18:33 - 05:58. Astro Dark: 19:04 - 05:26

Total Clouds (% Sky Obscured)

99
29
30
53
74
64
62
54
69
93
89
89
88
75
78
74
88
86
68
63
37
43
40
53

Low Clouds (% Sky Obscured)

35
29
25
53
74
64
62
52
69
93
89
89
85
70
75
72
87
79
67
63
34
42
40
53

Medium Clouds (% Sky Obscured)

69
3
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
4
4
0
0
0
0
0

High Clouds (% Sky Obscured)

84
5
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
0
1
9
9
9
9
9
9
9
9
6
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

Light Rain
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 (%)

54
5
0
0
0
0
0
0
0
0
0
0
14
14
4
13
1
1
0
0
0
0
0
0

Precipitation Amount (mm)

0.4
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
7
10
10
11
11
11
10
9
10
11
12
13
14
14
14
14
14
13
12
11
12
12

Chance of Frost

Temperature (°C)

1
1
2
2
2
2
2
1
1
-0
0
1
1
2
2
2
2
2
2
1
0
-0
-1
-1

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
100
100
98
91
84
83
80
78
81
80
78
80
78
76
76
74
74
73
76
77
75
74
74

Pressure (mb)

1008
1007
1008
1008
1008
1009
1009
1009
1010
1011
1011
1012
1012
1012
1012
1012
1011
1011
1012
1012
1013
1014
1014
1015

Ozone (du)

325
327
329
331
332
334
334
337
339
341
342
346
348
351
357
361
365
372
374
375
377
377
378
377

Wednesday 11

Waning Crescent 23%

03:55

12:37

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

Sun - Rise: 06:56, Set: 17:34, Transit: 12:15. Moon - Rise: 03:55, Set: 12:37. Civil Dark: 18:02 - 06:28. Nautical Dark: 18:34 - 05:56. Astro Dark: 19:05 - 05:25

Total Clouds (% Sky Obscured)

46
35
25
17
9
3
9
56
58
51
54
24
50
60
62
54
45
31
40
11
8
8
8
10

Low Clouds (% Sky Obscured)

45
35
25
17
8
3
4
5
7
10
15
22
44
49
54
51
41
28
24
11
8
8
8
8

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
3
56
50
26
27
3
2
0
0
0
0
1
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
3

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
3
0
2
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
12
12
12
12
11
11
11
11
12
12
14
14
13
13
13
12
12
10
9
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
74
75
75
75
75
75
75
75
75
73
72
68
66
65
64
64
65
65
67
70
71
70
71

Pressure (mb)

1015
1015
1015
1016
1016
1016
1016
1017
1017
1018
1018
1019
1019
1019
1019
1018
1018
1019
1019
1019
1020
1020
1021
1021

Ozone (du)

377
379
383
384
385
384
384
383
382
380
380
384
387
387
390
393
395
397
400
398
400
400
400
400

Thursday 12

Waning Crescent 15%

04:45

13:34

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

Sun - Rise: 06:55, Set: 17:35, Transit: 12:15. Moon - Rise: 04:45, Set: 13:34. Civil Dark: 18:03 - 06:27. Nautical Dark: 18:35 - 05:55. Astro Dark: 19:06 - 05:24

Total Clouds (% Sky Obscured)

18
25
30
36
42
46
28
14
4
4
5
5
5
6
6
6
6
5
4
4
3
3
2
2

Low Clouds (% Sky Obscured)

17
25
30
36
42
46
28
14
0
0
0
0
0
0
0
2
2
1
1
1
0
1
1
1

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

6
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
69
71
70
72
75
73
70
70
70
70
65
63
60
61
59
60
61
64
69
74
81
75
72

Pressure (mb)

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

Ozone (du)

398
397
399
398
402
401
403
404
404
406
405
406
402
401
400
402
401
401
400
398
397
395
395
395

Friday 13

Waning Crescent 9%

05:28

14:38

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 Good
12 Good
13 Good
14 Good
15 Good
16 Good
17 Good
18 Good
19 Good
20 Good
21 Good

Sun - Rise: 06:53, Set: 17:37, Transit: 12:15. Moon - Rise: 05:28, Set: 14:38. Civil Dark: 18:04 - 06:26. Nautical Dark: 18:36 - 05:54. Astro Dark: 19:07 - 05:23

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

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

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
1
2

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-4
-4
-4
-4
-6
-7
-6
-7
-7
-7
-7
-6
-6
-5
-5
-4
0
0
0
-0
0
0
-2
-2

Dew Point (°C)

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

Relative Humidity (%)

67
66
66
66
68
69
70
69
70
70
65
59
54
51
48
45
50
55
60
65
70
75
77
75

Pressure (mb)

1024
1024
1024
1024
1024
1024
1024
1025
1025
1025
1025
1025
1025
1025
1024
1024
1024
1024
1024
1024
1024
1025
1025
1025

Ozone (du)

395
398
401
403
405
406
407
408
409
410
411
412
413
411
410
408
406
404
402
399
396
394
394
395

Saturday 14

Waning Crescent 4%

06:04

15:45

22 Good
23 Good
00 Good
01 OK
02 OK
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
18 Bad

Sun - Rise: 06:52, Set: 17:38, Transit: 12:15. Moon - Rise: 06:04, Set: 15:45. Civil Dark: 18:05 - 06:25. Nautical Dark: 18:37 - 05:53. Astro Dark: 19:08 - 05:22

Total Clouds (% Sky Obscured)

4
9
12
23
41
54
67
83
100
94
87
78
81
86
88
92
95
98
99
99
100

Low Clouds (% Sky Obscured)

2
3
4
3
2
1
0
1
0
3
5
7
19
32
42
42
36
35
39
23
8

Medium Clouds (% Sky Obscured)

0
0
0
4
8
11
39
66
93
87
81
74
78
81
84
89
94
98
99
99
100

High Clouds (% Sky Obscured)

4
9
12
23
41
54
67
83
99
93
73
31
16
20
40
65
85
85
90
95
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

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
7
50
84
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.9

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-5
-5
-5
-5
-5
-6
-6
-7
-7
-7
-6
-5
-4
-4
-4
-4
-4
-3
-3
-3
-2

Relative Humidity (%)

74
77
78
78
78
76
76
73
73
73
75
75
75
71
68
64
66
70
73
78
84

Pressure (mb)

1025
1025
1025
1025
1025
1025
1025
1026
1026
1026
1026
1026
1026
1025
1025
1024
1023
1023
1022
1022
1022

Ozone (du)

395
393
392
390
389
387
385
386
387
387
387
386
385
386
388
389
389
390
391
391
391

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

Generated: 08/02/26 22:42:37. Forecast: 08/02/26 to 14/02/26. Timezone: UTC-5.00