Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 23

Waxing Crescent 26%

10:15

22:36

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

Sun - Rise: 07:19, Set: 17:21, Transit: 12:20. Moon - Rise: 10:15, Set: 22:36. Civil Dark: 17:49 - 06:50. Nautical Dark: 18:21 - 06:18. Astro Dark: 18:53 - 05:47

Total Clouds (% Sky Obscured)

69
76
58
64
25
32
17
25
76
6
2
5
47
40
38
44
59
46
71
38
50
74
93
96

Low 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

Medium Clouds (% Sky Obscured)

69
76
58
48
15
28
4
0
0
1
0
1
8
8
11
40
27
17
47
11
18
67
76
96

High Clouds (% Sky Obscured)

16
13
7
47
23
15
17
25
62
5
2
5
35
12
5
4
5
6
12
12
5
8
51
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
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
9
10
12
14
15
15
15
15
14
13
13
12
11
11
10
10
10
9
9
8
8
7

Chance of Frost

Temperature (°C)

9
7
5
3
1
-1
-3
-6
-7
-8
-10
-10
-11
-12
-12
-12
-12
-12
-11
-10
-9
-8
-7
-7

Feels Like (°C)

4
4
2
-3
-6
-8
-9
-12
-14
-14
-15
-15
-16
-17
-17
-17
-17
-16
-15
-15
-12
-12
-12
-12

Dew Point (°C)

-8
-7
-6
-9
-11
-12
-12
-15
-17
-19
-23
-24
-24
-25
-25
-25
-25
-25
-26
-26
-26
-26
-26
-26

Relative Humidity (%)

30
35
44
41
40
43
50
47
44
40
33
32
32
32
32
33
32
31
28
25
23
21
20
19

Pressure (mb)

1023
1024
1024
1025
1027
1029
1031
1032
1033
1034
1035
1036
1036
1037
1037
1038
1039
1040
1040
1041
1040
1040
1038
1037

Ozone (du)

333
329
321
314
306
300
297
297
297
297
296
293
293
292
290
291
292
294
290
288
288
283
283
284

Saturday 24

Waxing Crescent 36%

10:42

23:45

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
14 Bad

Sun - Rise: 07:18, Set: 17:22, Transit: 12:21. Moon - Rise: 10:42, Set: 23:45. Civil Dark: 17:50 - 06:50. Nautical Dark: 18:22 - 06:18. Astro Dark: 18:54 - 05:46

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

1
4
29
37
67
71
87
93
97
98
100
100
100
100
100
100
95
100
100
100
99
100
100
100

Medium Clouds (% Sky Obscured)

82
93
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
97
100
100
95
100
100
100

High Clouds (% Sky Obscured)

40
57
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
4
3
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Ice pellet
Ice pellet
Ice pellet

Precipitation Probability (%)

0
0
0
9
20
30
49
72
88
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0.1
0.4
0.6
0.8
1.2
2
1.9
2
1.9
1.1
1.6
2.1
1.5
1.5
1.3
1.3
1
1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-26
-26
-25
-25
-25
-24
-23
-21
-16
-11
-10
-10
-10
-10
-10
-9
-9
-9
-8
-8
-8
-8
-7
-7

Relative Humidity (%)

19
20
21
22
22
24
25
34
54
83
87
90
90
90
90
92
92
92
94
92
94
92
94
92

Pressure (mb)

1037
1037
1037
1038
1038
1038
1038
1038
1037
1036
1035
1035
1034
1033
1032
1031
1031
1029
1028
1027
1026
1023
1021
1019

Ozone (du)

283
284
283
282
282
281
280
280
280
281
282
285
286
288
289
289
288
288
289
289
290
286
285
282

Sunday 25

First Quarter 47%

11:13

00:57

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 OK
13 OK
14 OK

Sun - Rise: 07:17, Set: 17:23, Transit: 12:21. Moon - Rise: 11:13, Set: 00:57. Civil Dark: 17:51 - 06:49. Nautical Dark: 18:23 - 06:17. Astro Dark: 18:55 - 05:46

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
98
94
89
88
93
81
96
100
100
100
78
64
37
30
23

Low Clouds (% Sky Obscured)

95
89
91
89
86
83
74
100
93
94
86
82
48
35
30
26
18
0
22
9
0
1
6
11

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
67
58
73
68
75
59
82
89
100
100
69
63
33
23
11

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
68
31
15
9
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
1
3
5
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
1
1
0
1
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
Ice pellet
Ice pellet
Ice pellet
Ice pellet
Ice pellet
Ice pellet
Ice pellet
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
95
95
95
95
95
68
56
26
4
0
1
0
0
4
1
0
0
0
0
0
0

Precipitation Amount (mm)

0.8
1.7
1.8
2.6
2.7
2.3
1.2
0.9
0.3
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
9
8
8
7
7
7
6
9
8
8
7
7
6
7
7
8
9
11
13
14
14
15
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
92
94
96
96
94
96
94
94
94
94
94
92
92
92
90
88
84
82
82
84
81
81
79

Pressure (mb)

1018
1016
1015
1015
1013
1012
1011
1009
1010
1009
1009
1008
1008
1008
1008
1009
1009
1010
1011
1012
1013
1013
1013
1013

Ozone (du)

279
278
278
279
279
277
277
277
280
282
285
285
288
290
290
292
292
297
299
303
305
310
316
321

Monday 26

Waxing Gibbous 59%

11:52

02:12

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

Sun - Rise: 07:16, Set: 17:24, Transit: 12:21. Moon - Rise: 11:52, Set: 02:12. Civil Dark: 17:52 - 06:48. Nautical Dark: 18:24 - 06:16. Astro Dark: 18:56 - 05:45

Total Clouds (% Sky Obscured)

17
18
21
24
26
21
10
4
2
0
0
0
1
1
1
1
1
2
1
1
29
45
35
33

Low Clouds (% Sky Obscured)

17
18
20
24
18
12
6
4
2
0
0
0
0
0
0
0
0
0
0
0
4
5
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
1
19
10
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1

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
3
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)

14
14
12
10
8
9
9
9
9
8
7
6
5
4
4
3
4
4
6
7
8
8
9
9

Chance of Frost

Temperature (°C)

-2
-3
-4
-6
-8
-9
-8
-9
-10
-11
-13
-14
-15
-15
-15
-15
-17
-15
-12
-10
-8
-6
-5
-4

Feels Like (°C)

-6
-7
-8
-8
-11
-13
-13
-14
-13
-14
-16
-17
-17
-18
-18
-18
-19
-17
-14
-12
-11
-10
-9
-8

Dew Point (°C)

-5
-6
-7
-8
-10
-11
-11
-12
-12
-13
-16
-16
-17
-18
-18
-18
-19
-18
-15
-14
-12
-10
-9
-8

Relative Humidity (%)

79
78
78
84
88
87
82
82
83
85
83
81
80
79
79
79
80
80
78
72
71
71
72
72

Pressure (mb)

1014
1015
1016
1018
1019
1020
1021
1022
1023
1024
1025
1025
1026
1026
1026
1027
1027
1028
1028
1028
1027
1025
1024
1024

Ozone (du)

326
330
333
336
345
357
364
366
363
361
364
366
371
376
373
371
373
375
375
375
376
368
359
351

Tuesday 27

Waxing Gibbous 70%

12:41

03:27

15 OK
16 OK
17 Good
18 OK
19 OK
20 OK
21 OK
22 OK
23 OK
00 OK
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

Sun - Rise: 07:16, Set: 17:25, Transit: 12:21. Moon - Rise: 12:41, Set: 03:27. Civil Dark: 17:53 - 06:48. Nautical Dark: 18:25 - 06:16. Astro Dark: 18:57 - 05:45

Total Clouds (% Sky Obscured)

35
25
2
7
6
18
10
10
31
33
14
21
60
65
83
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
5
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
17

Medium Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
0
0
0
0
0
28
57
98
98
99
100
100
100
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
7
9
45
60
75
93
70
44
20
20
20
30
32
43

ISS Passover

Visibility (miles)

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

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

Chance of Frost

Temperature (°C)

-3
-3
-4
-7
-7
-7
-7
-7
-7
-8
-8
-10
-11
-12
-13
-12
-12
-10
-8
-6
-5
-3
-2
-2

Feels Like (°C)

-8
-7
-8
-9
-10
-10
-10
-10
-11
-12
-12
-12
-13
-16
-16
-16
-16
-15
-15
-15
-15
-14
-13
-5

Dew Point (°C)

-7
-6
-6
-9
-8
-8
-8
-8
-8
-9
-9
-11
-13
-14
-14
-14
-14
-12
-10
-8
-7
-6
-5
-5

Relative Humidity (%)

73
82
89
90
90
92
92
90
92
92
92
90
90
88
88
88
88
86
85
82
81
79
78
81

Pressure (mb)

1023
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1022
1021
1020
1019
1019

Ozone (du)

349
344
337
334
339
341
342
344
347
349
348
350
357
365
370
364
365
367
369
370
369
368
366
369

Wednesday 28

Waxing Gibbous 81%

13:41

04:38

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 OK
13 Bad
14 Bad

Sun - Rise: 07:15, Set: 17:27, Transit: 12:21. Moon - Rise: 13:41, Set: 04:38. Civil Dark: 17:55 - 06:47. Nautical Dark: 18:26 - 06:15. Astro Dark: 18:58 - 05:44

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
71
43
20
15
15
25
30
25
20
32
49

Low Clouds (% Sky Obscured)

26
17
9
0
25
50
75
78
81
84
86
87
89
59
30
0
0
0
10
20
25
20
32
49

Medium Clouds (% Sky Obscured)

100
100
100
100
79
55
28
51
75
96
97
98
99
71
43
0
0
0
0
0
11
20
31
21

High Clouds (% Sky Obscured)

44
33
37
40
32
20
13
31
52
74
76
73
70
70
43
20
15
15
25
10
0
0
0
0

ISS Passover

Visibility (miles)

8
8
6
4
2
2
2
3
5
7
9
9
9
9
6
3
0
3
6
9
7
5
3
5

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

Precipitation Probability (%)

10
11
12
11
13
14
13
16
16
14
31
38
43
40
34
25
27
30
26
28
24
14
17
19

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.1
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
3
3
3
3
3
4
4
3
3
3
3
4
6
6
7
8
9
11
12
12
13
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
83
87
92
96
96
96
94
92
92
90
88
90
90
90
92
94
88
85
84
80
79
77
77

Pressure (mb)

1018
1018
1018
1017
1017
1017
1016
1016
1015
1015
1014
1014
1013
1013
1013
1014
1014
1015
1016
1016
1017
1017
1017
1017

Ozone (du)

371
373
385
396
407
418
429
440
449
459
468
468
468
469
469
470
470
474
478
482
483
484
485
485

Thursday 29

Waxing Gibbous 90%

14:51

05:41

15 Bad
16 Bad
17 Bad
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 Good
08 Good
09 Good
10 Good
11 Good
12 Good

Sun - Rise: 07:14, Set: 17:28, Transit: 12:21. Moon - Rise: 14:51, Set: 05:41. Civil Dark: 17:56 - 06:46. Nautical Dark: 18:27 - 06:14. Astro Dark: 18:59 - 05:43

Total Clouds (% Sky Obscured)

70
66
50
27
22
19
17
13
10
7
6
3
2
2
2
2
1
0
0
2
4
8

Low Clouds (% Sky Obscured)

68
61
50
27
22
19
7
5
3
1
1
1
0
0
0
0
0
0
0
0
0
1

Medium Clouds (% Sky Obscured)

4
3
1
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

ISS Passover

Visibility (miles)

7
9
8
7
6
7
8
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

Precipitation Type

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

Precipitation Probability (%)

20
18
13
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

Wind Speed/Direction (mph)

13
14
12
11
10
9
9
9
8
8
8
7
7
7
7
7
6
8
10
11
12
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
79
82
85
90
86
85
83
85
86
86
86
86
84
84
83
81
79
76
74
72
71

Pressure (mb)

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

Ozone (du)

486
486
482
478
475
458
441
425
414
403
391
381
370
360
361
361
362
361
359
358
357
356

Forecast for Friendship Acres, Charles County, United States of America (38.44,-77.13)

Generated: 23/01/26 15:10:58. Forecast: 23/01/26 to 29/01/26. Timezone: UTC-5.00