Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 0%

07:23

15:18

14 OK
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 OK
11 Bad
12 Bad
13 Bad

Sun - Rise: 07:24, Set: 16:43, Transit: 12:04. Moon - Rise: 07:23, Set: 15:18. Civil Dark: 17:14 - 06:54. Nautical Dark: 17:48 - 06:20. Astro Dark: 18:21 - 05:47

Total Clouds (% Sky Obscured)

44
60
70
100
100
100
100
100
100
100
100
100
100
100
97
100
100
99
100
95
7
33
94
95

Low Clouds (% Sky Obscured)

8
2
9
14
9
46
53
39
57
97
96
95
96
93
90
100
95
86
71
70
5
19
94
95

Medium Clouds (% Sky Obscured)

31
0
52
57
96
93
100
100
100
100
100
100
100
96
44
38
83
93
100
94
0
18
13
86

High Clouds (% Sky Obscured)

44
60
70
100
100
100
100
100
100
100
100
100
100
100
57
44
100
38
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
3
5
4
9
9
0
1
1
9
2
9
9
3
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
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
None
Light Rain
Moderate Rain
Light Rain
Light Rain
None
None
Very Light Rain
None

Precipitation Probability (%)

0
0
0
0
3
45
77
82
77
95
95
95
95
95
95
62
95
95
95
88
7
41
59
9

Precipitation Amount (mm)

0
0
0
0
0
0
0.6
0.5
0.3
0.9
1.7
1.3
1.9
3.3
2.4
0
1.3
2.9
0.5
0.6
0
0
0.3
0

Wind Speed/Direction (mph)

4
5
5
6
5
5
4
6
8
11
13
16
18
17
15
14
15
16
16
14
12
13
17
21

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

5
5
5
4
3
3
3
3
5
7
9
9
10
10
10
11
12
12
8
7
7
5
5
-0

Relative Humidity (%)

81
87
91
88
83
83
85
82
88
93
95
91
93
93
92
96
95
93
77
82
84
69
73
64

Pressure (mb)

1020
1019
1019
1018
1018
1017
1016
1014
1012
1010
1008
1006
1004
1002
999
997
996
994
997
999
999
999
999
1001

Ozone (du)

285
286
285
284
282
285
285
285
283
279
279
280
282
286
291
290
295
300
310
320
330
331
336
342

Friday 19

New Moon 1%

08:15

16:06

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

Sun - Rise: 07:25, Set: 16:44, Transit: 12:04. Moon - Rise: 08:15, Set: 16:06. Civil Dark: 17:14 - 06:54. Nautical Dark: 17:48 - 06:20. Astro Dark: 18:21 - 05:47

Total Clouds (% Sky Obscured)

92
93
79
45
39
65
58
4
3
5
3
48
6
27
60
20
53
45
24
80
66
62
59
66

Low Clouds (% Sky Obscured)

71
65
66
45
39
65
53
3
3
3
3
3
3
3
3
3
4
0
0
4
0
0
0
0

Medium Clouds (% Sky Obscured)

79
75
31
0
0
0
0
0
0
0
0
0
0
0
26
20
16
7
20
26
11
24
31
3

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
0
19
1
27
60
1
53
45
12
49
43
55
32
47

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 (%)

5
6
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)

22
20
19
16
17
16
15
15
14
13
11
10
9
8
7
6
5
4
5
5
4
4
6
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

61
57
56
64
60
58
57
56
56
57
57
58
59
61
62
65
65
68
66
56
50
45
40
37

Pressure (mb)

1003
1006
1008
1009
1011
1013
1014
1015
1016
1017
1018
1019
1021
1022
1022
1023
1024
1025
1025
1025
1025
1024
1023
1021

Ozone (du)

342
346
349
348
345
336
331
326
318
310
306
303
303
303
304
305
304
301
300
296
294
292
289
288

Saturday 20

Waxing Crescent 3%

08:59

17:01

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 OK
04 OK
05 OK
06 Good
07 Good
08 Good
09 Good
10 Good
11 Good
12 Good
13 OK

Sun - Rise: 07:25, Set: 16:44, Transit: 12:05. Moon - Rise: 08:59, Set: 17:01. Civil Dark: 17:15 - 06:55. Nautical Dark: 17:49 - 06:21. Astro Dark: 18:22 - 05:48

Total Clouds (% Sky Obscured)

56
100
100
100
64
51
100
100
95
63
88
88
96
22
26
34
2
0
1
1
2
1
1
24

Low Clouds (% Sky Obscured)

0
4
0
0
0
0
0
0
0
0
3
26
2
2
2
2
2
0
0
0
0
0
0
15

Medium Clouds (% Sky Obscured)

56
97
57
53
46
47
53
87
36
50
62
55
45
11
8
8
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

42
100
100
100
42
51
72
74
82
63
73
13
26
2
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 (%)

1
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
9
7
7
9
10
12
12
12
12
11
9
7
6
6
6
6
7
9
11
13
15
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

36
43
47
49
55
59
61
60
57
57
59
62
63
68
70
71
77
83
85
73
55
49
48
47

Pressure (mb)

1021
1020
1019
1019
1018
1018
1017
1016
1015
1015
1014
1014
1014
1014
1014
1015
1016
1016
1017
1018
1019
1019
1019
1019

Ozone (du)

288
287
287
286
286
286
286
285
282
282
282
282
282
282
285
284
284
285
286
289
292
294
297
301

Sunday 21

Waxing Crescent 2%

09:37

18:03

14 OK
15 OK
16 OK
17 OK
18 OK
19 OK
20 Bad
21 Bad
22 OK
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

Sun - Rise: 07:26, Set: 16:45, Transit: 12:05. Moon - Rise: 09:37, Set: 18:03. Civil Dark: 17:15 - 06:55. Nautical Dark: 17:49 - 06:21. Astro Dark: 18:22 - 05:48

Total Clouds (% Sky Obscured)

35
27
24
43
18
17
54
51
30
8
2
3
3
3
3
3
3
2
1
1
0
10
2
4

Low Clouds (% Sky Obscured)

25
27
24
29
18
17
39
28
18
8
0
0
1
0
1
1
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
0
0
0
1
3

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-2
-4
-4
-5
-7
-7
-8
-10
-11
-10
-10
-10
-10
-10
-11
-10
-10
-10
-9
-9
-8
-6
-6
-3

Dew Point (°C)

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

Relative Humidity (%)

49
52
52
57
57
58
62
60
59
59
59
59
60
60
61
63
63
62
62
55
49
43
41
39

Pressure (mb)

1020
1021
1023
1024
1026
1027
1028
1029
1030
1031
1031
1032
1033
1033
1034
1034
1035
1036
1036
1037
1038
1037
1036
1036

Ozone (du)

304
307
310
313
315
316
318
319
318
316
315
316
317
319
319
321
322
322
321
319
317
318
317
315

Monday 22

Waxing Crescent 7%

10:08

19:08

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

Sun - Rise: 07:26, Set: 16:45, Transit: 12:06. Moon - Rise: 10:08, Set: 19:08. Civil Dark: 17:16 - 06:56. Nautical Dark: 17:50 - 06:22. Astro Dark: 18:23 - 05:49

Total Clouds (% Sky Obscured)

8
7
12
63
14
20
61
79
86
91
100
97
97
98
99
99
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
5
0
0
0
0
0
12
23
57
86
92
98
98

Medium Clouds (% Sky Obscured)

6
7
9
40
9
14
58
61
74
86
100
97
97
98
99
99
100
100
99
99
95
94
91
91

High Clouds (% Sky Obscured)

4
0
4
63
4
3
46
66
75
87
94
91
96
96
97
99
100
100
100
100
99
98
99
96

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
2
9
9
6
3
0
3
6
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
18
10
17
29
40
50
58
62
63
55
44
27
19
14
6
14

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-11
-11
-9
-9
-9
-9
-9
-9
-10
-10
-10
-10
-10
-10
-9
-9
-8
-7
-6
-5
-5
-4
-3
-1

Relative Humidity (%)

39
40
48
55
57
59
60
57
56
55
51
49
49
49
49
52
56
60
62
65
67
69
70
74

Pressure (mb)

1035
1035
1035
1034
1034
1034
1034
1034
1033
1032
1031
1031
1030
1029
1028
1027
1027
1026
1026
1025
1025
1024
1023
1021

Ozone (du)

313
312
308
306
303
302
301
300
302
300
302
302
302
302
302
301
299
298
299
299
299
300
301
301

Tuesday 23

Waxing Crescent 13%

10:34

20:14

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: 07:27, Set: 16:46, Transit: 12:06. Moon - Rise: 10:34, Set: 20:14. Civil Dark: 17:16 - 06:56. Nautical Dark: 17:50 - 06:22. Astro Dark: 18:23 - 05:49

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
99
99
98
94
90
92
92
87
81
75
69
63
71
78
86
92

Low Clouds (% Sky Obscured)

96
95
97
98
100
98
97
95
96
96
97
93
89
85
62
37
13
11
10
8
8
10
9
20

Medium Clouds (% Sky Obscured)

95
95
95
85
55
40
36
26
22
26
33
23
12
2
9
15
22
15
8
2
2
4
5
18

High Clouds (% Sky Obscured)

95
100
67
33
0
15
29
57
59
67
62
75
85
92
87
80
72
57
39
14
36
61
86
91

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 (%)

18
21
21
22
20
17
11
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
6
6
6
6
8
8
8
8
9
8
8
8
8
7
6
6
6
6
6
7
7
7
7

Chance of Frost

Temperature (°C)

3
3
4
4
4
4
4
4
4
4
4
4
3
3
3
3
3
4
5
6
8
8
9
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
82
88
86
85
83
82
79
77
77
75
75
74
74
74
76
77
79
75
72
71
67
63
60

Pressure (mb)

1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1023
1023
1023
1024
1024
1025
1025
1025
1026
1025
1025
1024

Ozone (du)

303
305
306
308
309
311
308
306
303
301
299
297
294
292
290
289
287
286
285
283
282
279
276
273

Wednesday 24

Waxing Crescent 21%

10:58

21:21

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

Sun - Rise: 07:27, Set: 16:46, Transit: 12:07. Moon - Rise: 10:58, Set: 21:21. Civil Dark: 17:17 - 06:56. Nautical Dark: 17:51 - 06:22. Astro Dark: 18:24 - 05:49

Total Clouds (% Sky Obscured)

97
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

38
29
26
31
44
59
72
84
83
83
85
91
91
90
93
96
97

Medium Clouds (% Sky Obscured)

32
49
66
80
94
96
96
98
98
99
100
100
100
100
97
93
91

High Clouds (% Sky Obscured)

96
100
100
99
99
100
100
100
100
100
100
98
96
95
70
46
26

ISS Passover

Visibility (miles)

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

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
Snow
Snow
Snow
Snow
Frozen rai

Precipitation Probability (%)

0
0
2
3
4
6
8
10
17
24
28
38
49
62
65
66
65

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.2
0.3
0.3
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

8
8
7
5
4
3
3
3
3
2
2
2
3
3
3
3
3

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

63
66
70
72
73
74
76
77
79
83
86
89
93
94
96
98
98

Pressure (mb)

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

Ozone (du)

273
273
272
273
273
273
274
275
275
276
278
279
278
278
277
279
281

Forecast for Mount Wolf, York, United States of America (40.06,-76.70)

Generated: 18/12/25 13:56:14. Forecast: 18/12/25 to 24/12/25. Timezone: UTC-5.00