Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 20

Waxing Crescent 1%

08:07

18:02

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

Sun - Rise: 07:23, Set: 17:34, Transit: 12:28. Moon - Rise: 08:07, Set: 18:02. Civil Dark: 18:00 - 06:57. Nautical Dark: 18:30 - 06:27. Astro Dark: 19:00 - 05:57

Total Clouds (% Sky Obscured)

35
44
51
57
28
16
14
0
0
0
0
0
0
0
2
3
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

26
34
48
49
25
14
12
0
0
0
0
0
0
0
0
0
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
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
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)

8
9
10
10
12
14
15
16
16
15
14
13
12
9
8
7
7
7
6
6
5
4
4
6

Chance of Frost

Temperature (°C)

11
12
12
13
14
17
20
22
24
25
26
25
24
22
21
19
18
18
17
17
16
15
15
14

Feels Like (°C)

9
10
11
11
13
15
17
19
22
23
24
24
23
21
21
19
18
18
17
17
17
16
16
13

Dew Point (°C)

9
10
10
11
11
12
12
12
12
12
12
12
13
13
13
12
11
11
11
11
11
10
8
6

Relative Humidity (%)

84
87
90
89
82
71
61
53
48
45
42
43
49
57
62
62
62
65
69
69
72
70
65
59

Pressure (mb)

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

Ozone (du)

273
271
271
272
273
274
274
273
272
273
272
271
269
268
269
268
268
267
268
269
267
265
264
265

Sunday 21

Waxing Crescent 3%

08:54

19:01

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

Sun - Rise: 07:24, Set: 17:34, Transit: 12:29. Moon - Rise: 08:54, Set: 19:01. Civil Dark: 18:01 - 06:57. Nautical Dark: 18:31 - 06:27. Astro Dark: 19:00 - 05:58

Total Clouds (% Sky Obscured)

0
0
0
19
25
23
25
17
12
12
0
1
0
0
0
0
0
0
0
0
22
61
78
75

Low Clouds (% Sky Obscured)

0
0
0
16
18
19
21
14
10
10
0
1
0
0
0
0
0
0
0
0
12
27
78
75

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

Chance of Frost

Temperature (°C)

13
11
10
10
12
14
16
17
19
20
20
20
18
16
15
14
13
12
12
11
10
10
10
11

Feels Like (°C)

11
9
8
7
9
11
13
15
17
18
19
18
18
15
14
13
13
12
12
12
12
12
11
10

Dew Point (°C)

3
1
1
1
1
2
2
2
2
2
2
3
5
5
5
5
6
7
8
8
7
7
7
5

Relative Humidity (%)

50
49
51
53
48
42
38
35
32
31
31
32
40
47
51
55
62
69
77
83
83
81
78
68

Pressure (mb)

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

Ozone (du)

264
263
263
264
263
262
264
264
264
263
263
263
261
258
257
255
255
253
253
253
251
251
249
248

Monday 22

Waxing Crescent 7%

09:35

20:01

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

Sun - Rise: 07:24, Set: 17:35, Transit: 12:29. Moon - Rise: 09:35, Set: 20:01. Civil Dark: 18:01 - 06:58. Nautical Dark: 18:31 - 06:28. Astro Dark: 19:01 - 05:58

Total Clouds (% Sky Obscured)

54
39
45
53
79
65
58
55
58
65
50
42
27
44
40
26
36
50
53
71
88
95
97
98

Low Clouds (% Sky Obscured)

43
20
35
31
65
56
36
52
58
65
50
42
27
44
37
26
36
50
53
71
88
94
96
98

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
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
2
1
0
0
4
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)

3
3
3
3
4
6
8
10
10
13
12
11
8
6
6
7
8
10
11
12
12
12
12
12

Chance of Frost

Temperature (°C)

12
11
11
12
14
17
20
22
24
25
25
25
24
22
21
20
20
20
19
19
19
19
19
19

Feels Like (°C)

10
11
12
12
15
16
19
22
23
23
24
24
24
22
21
20
20
20
20
20
20
18
18
18

Dew Point (°C)

5
6
6
6
8
12
15
16
16
16
16
17
17
16
16
15
16
16
17
18
18
18
18
18

Relative Humidity (%)

62
70
72
68
64
70
72
68
62
58
57
61
64
67
70
72
76
80
88
92
95
91
89
89

Pressure (mb)

1022
1022
1023
1023
1023
1024
1023
1022
1020
1019
1019
1019
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

248
248
248
248
247
247
246
246
246
244
244
244
244
243
243
243
243
243
243
244
245
246
245
245

Tuesday 23

Waxing Crescent 14%

10:12

21:01

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

Sun - Rise: 07:25, Set: 17:35, Transit: 12:30. Moon - Rise: 10:12, Set: 21:01. Civil Dark: 18:02 - 06:58. Nautical Dark: 18:32 - 06:28. Astro Dark: 19:01 - 05:59

Total Clouds (% Sky Obscured)

100
97
93
90
85
80
77
73
72
70
62
24
19
22
33
29
41
50
56
62
67
71
80
77

Low Clouds (% Sky Obscured)

100
96
93
88
82
75
69
66
62
58
50
24
19
22
33
29
41
50
56
62
61
63
69
71

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
26
55
71
60
32

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
1
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)

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

Chance of Frost

Temperature (°C)

19
19
20
20
20
21
22
23
24
25
25
25
24
22
22
21
20
20
19
19
18
18
17
17

Feels Like (°C)

18
18
19
19
19
20
21
22
23
23
24
24
26
25
24
23
22
21
20
20
19
19
19
18

Dew Point (°C)

17
17
17
17
17
17
18
18
19
19
19
19
19
19
18
18
17
16
17
17
17
17
17
17

Relative Humidity (%)

88
85
82
82
80
80
76
74
73
69
69
69
72
81
81
81
79
79
84
89
92
95
95
98

Pressure (mb)

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

Ozone (du)

245
245
244
245
245
245
245
245
245
243
244
244
245
244
244
244
244
244
243
244
244
244
244
244

Wednesday 24

Waxing Crescent 22%

10:45

22:01

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
19 OK
20 OK
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 07:25, Set: 17:36, Transit: 12:30. Moon - Rise: 10:45, Set: 22:01. Civil Dark: 18:02 - 06:59. Nautical Dark: 18:32 - 06:29. Astro Dark: 19:02 - 05:59

Total Clouds (% Sky Obscured)

88
86
86
88
83
79
68
55
53
53
46
38
37
36
35
36
46
53
63
71
76
81
81
82

Low Clouds (% Sky Obscured)

88
86
85
84
76
71
64
51
49
53
46
38
37
31
22
10
30
51
63
71
75
77
79
80

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

0
0
0
8
16
16
9
3
3
10
26
32
37
36
35
36
40
36
28
42
54
67
48
32

ISS Passover

Visibility (miles)

0
8
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
9
2
11
0
3
1
2
10
3
17
10
12
8
2
5
5
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
9
9
10
9
10
11
12
12
12
11
9
9
8
8
9
9
10
10
10
10
10
10
10

Chance of Frost

Temperature (°C)

17
18
18
18
19
20
21
22
24
25
25
25
23
23
22
21
20
20
19
18
18
18
18
18

Feels Like (°C)

18
17
17
17
19
20
21
22
23
24
25
24
23
23
22
22
21
21
21
20
17
17
17
17

Dew Point (°C)

17
17
17
16
17
18
18
19
18
18
18
18
19
18
18
17
16
16
16
16
16
17
17
17

Relative Humidity (%)

98
96
95
89
89
86
82
79
69
66
63
67
74
74
75
75
74
78
84
89
89
92
93
93

Pressure (mb)

1022
1022
1023
1023
1024
1024
1023
1023
1021
1021
1020
1020
1020
1020
1021
1021
1022
1022
1022
1022
1022
1022
1021
1021

Ozone (du)

243
243
242
242
243
243
242
243
244
244
244
245
245
245
246
246
247
247
247
247
247
246
246
246

Thursday 25

Waxing Crescent 31%

11:15

23:01

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

Sun - Rise: 07:25, Set: 17:36, Transit: 12:31. Moon - Rise: 11:15, Set: 23:01. Civil Dark: 18:03 - 06:59. Nautical Dark: 18:33 - 06:29. Astro Dark: 19:02 - 06:00

Total Clouds (% Sky Obscured)

84
86
89
92
93
93
93
74
56
37
37
48
65
64
62
57
68
79
89
86
91
98
96
95

Low Clouds (% Sky Obscured)

82
84
87
89
77
65
53
45
37
29
19
10
3
4
3
2
17
35
48
64
70
65
54
54

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
3
6
8
11
9
7

High Clouds (% Sky Obscured)

19
19
24
31
46
60
71
57
44
31
37
48
65
64
61
55
64
76
82
77
73
70
55
43

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)

10
9
10
10
11
11
12
12
12
12
11
10
8
7
7
7
7
8
9
10
10
10
10
10

Chance of Frost

Temperature (°C)

18
18
19
19
19
21
22
24
25
25
26
25
24
24
23
22
21
20
20
19
19
19
19
19

Feels Like (°C)

18
18
18
18
19
19
19
19
24
24
23
24
24
25
21
21
22
21
21
20
18
19
19
19

Dew Point (°C)

17
17
17
18
17
17
17
16
16
15
15
15
15
16
16
16
16
16
17
17
17
18
18
18

Relative Humidity (%)

95
93
92
91
88
79
71
62
58
53
49
53
56
60
64
68
73
77
82
86
89
91
93
95

Pressure (mb)

1021
1021
1021
1022
1022
1022
1021
1021
1020
1019
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

246
245
245
245
244
245
245
246
246
246
246
246
245
245
245
245
245
245
245
246
245
244
243
244

Friday 26

Waxing Crescent 41%

11:44

00:01

Sun - Rise: 07:26, Set: 17:37, Transit: 12:31. Moon - Rise: 11:44, Set: 00:01. Civil Dark: 18:03 - 06:59. Nautical Dark: 18:33 - 06:29. Astro Dark: 19:03 - 06:00

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Round Rock, Williamson, United States of America (30.51,-97.68)

Generated: 20/12/25 05:36:55. Forecast: 20/12/25 to 26/12/25. Timezone: UTC-6.00