Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 1

Waxing Gibbous 98%

15:48

06:54

19 OK
20 OK
21 OK
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 OK
18 OK

Sun - Rise: 07:23, Set: 16:48, Transit: 12:05. Moon - Rise: 15:48, Set: 06:54. Civil Dark: 17:18 - 06:52. Nautical Dark: 17:52 - 06:19. Astro Dark: 18:25 - 05:46

Total Clouds (% Sky Obscured)

30
21
42
97
98
94
97
95
98
97
98
96
91
98
79
71
85
83
68
66
58
50
33
23

Low Clouds (% Sky Obscured)

0
0
33
65
75
89
90
91
90
72
70
85
84
82
75
55
76
82
58
59
58
50
33
23

Medium Clouds (% Sky Obscured)

2
19
42
97
97
93
93
89
94
92
96
66
58
65
23
19
20
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
3
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
3
3
5
14
19
15
16
18
17
11
7
1
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
8
9
9
9
10
9
8
8
8
7
7
7
8
9
10
11
12
11
10
9
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

38
40
40
40
41
40
39
53
66
70
66
63
74
74
70
57
46
42
41
39
39
41
45
48

Pressure (mb)

1013
1014
1014
1014
1014
1013
1013
1013
1012
1011
1011
1011
1011
1011
1011
1011
1010
1009
1008
1008
1008
1009
1009
1010

Ozone (du)

352
354
357
355
354
350
347
349
351
350
349
352
353
357
361
360
354
348
342
338
339
337
336
334

Friday 2

Waxing Gibbous 100%

17:04

07:53

19 OK
20 Good
21 Good
22 Good
23 OK
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

Sun - Rise: 07:23, Set: 16:49, Transit: 12:06. Moon - Rise: 17:04, Set: 07:53. Civil Dark: 17:19 - 06:52. Nautical Dark: 17:53 - 06:19. Astro Dark: 18:26 - 05:46

Total Clouds (% Sky Obscured)

24
3
2
5
23
62
100
100
100
100
100
100
98
100
86
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

20
3
2
2
2
2
2
0
1
0
0
0
0
0
2
2
6
1
2
2
5
35
37
23

Medium Clouds (% Sky Obscured)

0
0
0
0
4
4
31
69
99
100
100
95
88
91
86
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

0
0
0
2
18
62
100
100
100
100
100
100
95
100
77
99
100
100
100
100
100
100
100
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
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
8
8
8
8
8
8
7
7
7
7
6
6
6
7
7
7
6
5
5
4
3
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

50
53
55
58
59
60
59
58
56
54
53
53
54
53
51
49
48
45
44
43
43
43
45
45

Pressure (mb)

1011
1011
1012
1012
1012
1013
1013
1014
1014
1014
1014
1015
1015
1016
1016
1017
1017
1016
1015
1015
1016
1016
1016
1016

Ozone (du)

333
331
325
320
313
315
315
312
312
313
314
314
315
318
319
318
320
321
320
317
316
316
316
317

Saturday 3

Full Moon 99%

18:22

08:40

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 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 07:23, Set: 16:50, Transit: 12:06. Moon - Rise: 18:22, Set: 08:40. Civil Dark: 17:20 - 06:52. Nautical Dark: 17:54 - 06:19. Astro Dark: 18:27 - 05:46

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
97
100
85
78
84
61
72
42
36
35
50
58
67
66
58
61
64

Low Clouds (% Sky Obscured)

20
20
20
15
41
60
61
71
80
68
65
46
32
31
41
34
35
48
56
60
64
58
61
64

Medium Clouds (% Sky Obscured)

100
100
100
95
100
100
100
93
100
77
66
62
37
42
8
2
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
30
30
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
4
0
0
0
2
12
22
10
7
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

46
46
46
47
47
48
49
51
52
52
54
55
56
57
57
56
50
47
43
41
43
46
51
53

Pressure (mb)

1016
1016
1015
1015
1015
1014
1014
1015
1015
1014
1014
1015
1015
1016
1016
1017
1017
1016
1016
1016
1016
1017
1018
1019

Ozone (du)

319
319
318
319
320
326
333
336
339
341
340
339
341
345
344
344
345
344
344
342
339
331
329
328

Sunday 4

Waning Gibbous 95%

No Rise

09:16

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

Sun - Rise: 07:23, Set: 16:51, Transit: 12:07. Moon - Rise: No Rise, Set: 09:16. Civil Dark: 17:21 - 06:52. Nautical Dark: 17:55 - 06:19. Astro Dark: 18:27 - 05:46

Total Clouds (% Sky Obscured)

63
58
61
30
23
24
29
68
55
66
79
99
77
50
21
54
75
100
100
99
99
99
100
100

Low Clouds (% Sky Obscured)

62
49
57
30
23
16
11
7
2
0
0
0
0
1
1
0
2
5
4
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
41
55
57
77
54
32
36
21
25
15
10
39
67
99
96
94
91

High Clouds (% Sky Obscured)

0
0
0
0
0
1
2
10
15
43
74
98
72
47
21
36
75
100
96
94
93
96
98
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
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 (%)

2
2
1
2
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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
7
7
7
7
8
8
9
9
8
7
7
5
5
4
3
3
3
3
3
3
4
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

54
56
59
59
60
60
60
57
53
51
50
50
49
49
47
43
41
40
41
39
42
45
49
52

Pressure (mb)

1019
1020
1021
1021
1022
1022
1023
1024
1024
1024
1024
1025
1025
1025
1026
1026
1025
1024
1023
1023
1023
1022
1022
1022

Ozone (du)

326
324
323
321
320
320
320
318
318
319
318
319
320
322
322
325
327
327
325
324
322
324
325
325

Monday 5

Waning Gibbous 89%

19:37

09:44

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
18 OK

Sun - Rise: 07:22, Set: 16:52, Transit: 12:07. Moon - Rise: 19:37, Set: 09:44. Civil Dark: 17:22 - 06:52. Nautical Dark: 17:56 - 06:19. Astro Dark: 18:28 - 05:46

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
98
97
96
96
97
98
96
94
92
94
91
97
80
65
60
60
61
22

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
3
6
9
11
22
25
23
8
0
8
16
22

Medium Clouds (% Sky Obscured)

94
97
100
100
100
100
96
93
88
86
84
81
61
39
21
22
32
33
44
56
60
60
61
22

High Clouds (% Sky Obscured)

100
100
100
100
99
99
90
85
77
74
75
76
79
79
75
58
32
3
5
7
2
6
10
18

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-10
-9
-8
-8
-7
-7
-6
-5
-4
-4
-3
-3
-3
-2
-1
-1
-1
-0
0
1
1
1
1
1

Relative Humidity (%)

53
56
62
64
66
68
70
77
81
83
86
87
89
89
89
88
83
79
75
76
79
80
83
86

Pressure (mb)

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

Ozone (du)

327
327
327
329
329
329
332
332
335
337
339
341
340
343
345
348
349
350
350
350
349
348
350
353

Tuesday 6

Waning Gibbous 81%

20:49

10:09

19 OK
20 OK
21 Good
22 OK
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

Sun - Rise: 07:22, Set: 16:53, Transit: 12:08. Moon - Rise: 20:49, Set: 10:09. Civil Dark: 17:23 - 06:52. Nautical Dark: 17:56 - 06:19. Astro Dark: 18:29 - 05:46

Total Clouds (% Sky Obscured)

14
5
5
25
50
69
82
91
94
82
71
59
58
57
58
69
86
91
94
96
98
97
95
92

Low Clouds (% Sky Obscured)

14
5
0
19
37
56
61
67
71
58
45
33
40
48
58
65
73
80
81
81
81
85
90
88

Medium Clouds (% Sky Obscured)

14
5
5
7
9
19
17
33
64
64
53
42
28
14
0
0
16
70
85
95
98
68
37
6

High Clouds (% Sky Obscured)

14
5
5
25
37
36
25
19
12
6
16
55
58
57
58
65
70
65
55
50
20
1
2
4

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
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
None

Precipitation Probability (%)

5
5
3
11
16
17
29
33
32
22
13
3
2
0
0
5
12
20
43
64
78
69
53
20

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.3
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
89
89
91
88
88
86
86
86
86
85
85
83
83
82
80
80
80
80
85
90
94
96
96

Pressure (mb)

1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1016
1016
1016
1016
1016
1017
1017

Ozone (du)

355
357
359
361
360
359
358
354
350
346
345
344
344
344
345
346
347
348
350
351
353
354
354
354

Wednesday 7

Waning Gibbous 72%

21:56

10:31

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

Sun - Rise: 07:22, Set: 16:54, Transit: 12:08. Moon - Rise: 21:56, Set: 10:31. Civil Dark: 17:24 - 06:52. Nautical Dark: 17:57 - 06:19. Astro Dark: 18:30 - 05:46

Total Clouds (% Sky Obscured)

95
97
98
79
61
43
30
16
3
15
26
36
36
37
42
34
27
20

Low Clouds (% Sky Obscured)

91
93
89
71
56
43
30
15
0
1
3
2
2
2
2
19
27
20

Medium Clouds (% Sky Obscured)

4
3
2
3
2
0
0
0
0
0
0
0
1
1
2
5
5
9

High Clouds (% Sky Obscured)

3
2
0
2
3
5
3
2
0
5
10
15
10
5
0
8
13
15

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

16
12
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
3
3
3
3
3
3
3
3
2
2
2
3
2
1
1
1
2

Dew Point (°C)

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

Relative Humidity (%)

98
98
98
96
96
96
96
96
96
96
93
89
88
79
72
66
62
59

Pressure (mb)

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

Ozone (du)

354
352
350
348
347
346
345
344
342
340
338
336
334
336
337
338
338
339

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

Generated: 01/01/26 18:44:01. Forecast: 01/01/26 to 07/01/26. Timezone: UTC-5.00