Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 21

Waxing Crescent 3%

09:04

17:44

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

Sun - Rise: 07:26, Set: 16:26, Transit: 11:56. Moon - Rise: 09:04, Set: 17:44. Civil Dark: 16:58 - 06:54. Nautical Dark: 17:34 - 06:18. Astro Dark: 18:09 - 05:43

Total Clouds (% Sky Obscured)

4
4
2
0
0
0
0
0
3
13
84
85
66
34
96
100
100
99
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
0
0
26
44
2
14
30
10
10
50
42
37
39
40
20

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
13
55
50
32
24
92
99
100
99
100
100
100
100
100
99

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
80
58
2
19
5
8
42
3
25
98
100
100
100
91

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
9
9
9
2
2
6
2
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
Snow
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
17
1
0
18
31
35
32
18
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

3
2
3
5
8
8
8
8
7
6
7
8
8
9
9
9
9
9
9
10
10
9
8
9

Chance of Frost

Temperature (°C)

-12
-11
-10
-8
-6
-4
-4
-3
-4
-5
-5
-5
-4
-4
-4
-4
-3
-3
-2
-2
-2
-2
-2
-1

Feels Like (°C)

-14
-12
-11
-11
-9
-8
-7
-6
-6
-7
-8
-9
-9
-9
-8
-9
-8
-8
-8
-7
-7
-6
-7
-7

Dew Point (°C)

-17
-18
-17
-16
-15
-13
-12
-11
-9
-9
-9
-9
-9
-9
-9
-9
-9
-8
-8
-8
-8
-7
-7
-7

Relative Humidity (%)

66
58
54
51
49
49
50
57
65
73
72
70
72
69
68
68
64
64
64
63
63
68
68
64

Pressure (mb)

1031
1031
1032
1032
1032
1031
1030
1030
1030
1030
1030
1030
1029
1029
1029
1029
1028
1028
1028
1027
1026
1026
1025
1025

Ozone (du)

329
336
341
343
346
350
340
333
333
330
328
327
325
326
326
325
324
323
317
313
310
304
301
296

Monday 22

Waxing Crescent 7%

09:39

18:51

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

Sun - Rise: 07:27, Set: 16:26, Transit: 11:56. Moon - Rise: 09:39, Set: 18:51. Civil Dark: 16:59 - 06:54. Nautical Dark: 17:35 - 06:18. Astro Dark: 18:09 - 05:44

Total Clouds (% Sky Obscured)

99
100
100
100
100
98
94
95
84
89
69
41
100
53
28
9
59
81
80
90
28
17
3
3

Low Clouds (% Sky Obscured)

21
85
100
100
100
89
88
89
80
80
57
39
32
38
28
9
40
73
72
44
25
0
0
0

Medium Clouds (% Sky Obscured)

92
83
84
81
53
53
17
19
6
26
20
6
0
0
0
1
1
14
3
0
0
0
0
0

High Clouds (% Sky Obscured)

96
95
79
83
53
33
19
32
30
30
28
12
100
53
28
9
16
8
31
32
19
17
3
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 (%)

2
4
13
1
0
0
2
2
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
10
10
9
9
9
8
7
6
7
6
6
5
3
3
3
3
3
3
3
3
3
3
4

Chance of Frost

Temperature (°C)

-1
-1
0
0
0
1
1
1
1
1
1
1
0
0
0
-0
-1
-1
-0
0
0
-0
-1
-1

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
59
57
59
59
60
64
69
71
73
74
75
83
86
87
89
91
91
92
94
94
96
96
96

Pressure (mb)

1024
1024
1023
1022
1020
1019
1018
1018
1017
1017
1017
1016
1016
1016
1015
1015
1015
1015
1015
1016
1016
1016
1017
1018

Ozone (du)

291
291
288
284
281
280
281
282
280
277
272
273
275
276
274
274
274
271
270
269
271
270
269
267

Tuesday 23

Waxing Crescent 13%

10:08

20:00

08 Good
09 OK
10 OK
11 OK
12 OK
13 OK
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

Sun - Rise: 07:27, Set: 16:27, Transit: 11:57. Moon - Rise: 10:08, Set: 20:00. Civil Dark: 16:59 - 06:55. Nautical Dark: 17:35 - 06:19. Astro Dark: 18:10 - 05:44

Total Clouds (% Sky Obscured)

4
12
21
37
30
37
34
99
100
93
88
81
100
100
100
100
100
96
100
98
100
100
100
100

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

0
7
0
11
6
7
2
11
27
31
47
48
34
71
65
61
57
43
63
49
98
100
69
33

High Clouds (% Sky Obscured)

4
12
21
37
30
37
34
95
100
85
74
68
100
100
100
100
100
90
100
97
100
84
88
95

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
92
88
85
80
79
79
82
86
88
88
88
86
86
86
86
86
86
86
86
83
83
84
87

Pressure (mb)

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

Ozone (du)

268
269
271
271
270
268
267
266
265
266
266
266
266
266
264
262
262
261
262
263
264
267
266
266

Wednesday 24

Waxing Crescent 21%

10:32

21:09

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
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 07:27, Set: 16:27, Transit: 11:57. Moon - Rise: 10:32, Set: 21:09. Civil Dark: 17:00 - 06:55. Nautical Dark: 17:36 - 06:19. Astro Dark: 18:10 - 05:45

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
94
93
96
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
30
67
100
100
100
100
100
100
100
100
100
100
99
100
88
83
77
77
77
72
86
95
100

Medium Clouds (% Sky Obscured)

5
5
5
5
0
5
5
17
28
40
22
12
5
3
1
0
0
0
0
0
0
0
26
33

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
49
48
98
97
36
42
24
20
1
31
71
100
83
66
45
26
20

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
6
1
0
0
0
1
3
5
9
9
9
4
2
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
2
7
24
17
20
2
0
2
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
88
84
81
83
83
88
93
94
96
98
98
98
100
100
98
98
98
98
98
98
98
100
100

Pressure (mb)

1024
1023
1022
1021
1020
1018
1018
1017
1017
1017
1016
1017
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1015
1014

Ozone (du)

269
266
265
265
265
264
264
263
265
263
263
260
259
258
258
257
257
256
256
255
257
256
256
255

Thursday 25

Waxing Crescent 31%

10:53

22:18

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
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 07:28, Set: 16:28, Transit: 11:58. Moon - Rise: 10:53, Set: 22:18. Civil Dark: 17:00 - 06:55. Nautical Dark: 17:36 - 06:20. Astro Dark: 18:11 - 05:45

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
98
98
99
100
100
94
88

Medium Clouds (% Sky Obscured)

52
73
82
99
84
87
80
79
90
93
81
100
100
99
100
100
88
80
71
48
26
2
1
1

High Clouds (% Sky Obscured)

17
42
71
100
100
100
100
99
100
100
100
100
100
87
80
70
27
43
40
43
36
24
19
11

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
7
8

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
1
8
22
35
40
26
33
10
9
11
10
4
9
13
15
11
7

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)

3
4
4
4
4
4
4
3
3
2
2
2
3
5
6
7
10
9
11
11
12
12
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

100
100
98
100
98
100
100
100
98
98
100
100
100
98
100
98
98
96
96
96
93
91
89
84

Pressure (mb)

1014
1014
1013
1012
1010
1009
1008
1007
1006
1006
1005
1004
1003
1002
1002
1002
1002
1004
1005
1006
1008
1009
1010
1012

Ozone (du)

256
256
257
259
260
261
260
259
261
260
259
260
260
260
261
261
264
269
274
279
284
290
295
301

Friday 26

Waxing Crescent 41%

11:13

23:28

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

Sun - Rise: 07:28, Set: 16:29, Transit: 11:58. Moon - Rise: 11:13, Set: 23:28. Civil Dark: 17:01 - 06:56. Nautical Dark: 17:37 - 06:20. Astro Dark: 18:12 - 05:45

Total Clouds (% Sky Obscured)

96
97
99
100
99
99
98
93
84
74
66
48
24
39
47
58
77
89
100
100
99
99
99
99

Low Clouds (% Sky Obscured)

83
84
86
86
92
94
95
83
72
61
48
36
23
21
23
28
42
53
58
65
72
79
70
59

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
3
4
6
15
25
35
46
58
69
74
82

High Clouds (% Sky Obscured)

2
15
21
15
33
58
84
70
75
74
66
48
24
39
47
58
77
89
99
91
82
71
53
39

ISS Passover

Visibility (miles)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
74
71
69
65
66
65
64
68
72
76
76
78
78
78
76
76
76
78
78
78
78
81
80

Pressure (mb)

1014
1016
1016
1017
1017
1018
1018
1019
1019
1020
1020
1020
1020
1020
1019
1019
1019
1019
1019
1018
1018
1018
1017
1017

Ozone (du)

307
313
314
315
316
320
324
328
327
327
327
326
325
324
322
320
319
319
319
319
318
317
316
316

Saturday 27

First Quarter 52%

11:33

00:40

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
22 Bad
23 Bad
00 Bad
01 OK
02 Good
03 Good
04 Good
05 Good

Sun - Rise: 07:28, Set: 16:30, Transit: 11:59. Moon - Rise: 11:33, Set: 00:40. Civil Dark: 17:02 - 06:56. Nautical Dark: 17:38 - 06:20. Astro Dark: 18:12 - 05:46

Total Clouds (% Sky Obscured)

99
98
99
100
100
100
100
100
100
100
100
100
100
87
77
65
45
23
1
1
1
1

Low Clouds (% Sky Obscured)

49
32
25
21
35
47
48
41
33
21
44
62
81
54
27
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

88
72
59
46
56
67
83
85
86
86
86
86
84
69
54
42
28
15
0
0
0
0

High Clouds (% Sky Obscured)

27
48
74
98
99
99
100
100
100
100
100
100
100
68
37
7
6
7
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

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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
3
6
6
5
3
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)

8
8
9
9
10
11
10
10
9
9
10
11
15
19
19
20
21
20
19
19
18
18

Chance of Frost

Temperature (°C)

0
1
1
2
4
4
5
5
5
4
4
4
4
4
2
0
-2
-4
-5
-7
-7
-8

Feels Like (°C)

-5
-5
-5
-6
-5
-1
-2
-2
-2
-1
-2
-2
-2
-2
-3
-4
-4
-8
-9
-11
-11
-11

Dew Point (°C)

-3
-2
-2
-2
-1
-1
0
1
0
1
1
1
1
1
-1
-4
-6
-8
-10
-11
-12
-13

Relative Humidity (%)

81
81
77
73
71
71
71
71
73
79
82
82
83
85
80
75
71
70
70
68
68
67

Pressure (mb)

1016
1016
1015
1014
1013
1013
1012
1011
1011
1011
1011
1011
1011
1011
1013
1014
1016
1017
1019
1021
1022
1023

Ozone (du)

315
315
317
319
320
321
322
323
323
323
323
324
326
327
330
333
335
338
340
342
344
346

Forecast for Madison, Dane, United States of America (43.07,-89.40)

Generated: 21/12/25 08:44:36. Forecast: 21/12/25 to 27/12/25. Timezone: UTC-6.00