Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 21

Waxing Crescent 2%

10:19

17:59

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 08:14, Set: 16:59, Transit: 12:37. Moon - Rise: 10:19, Set: 17:59. Civil Dark: 17:33 - 07:40. Nautical Dark: 18:10 - 07:03. Astro Dark: 18:46 - 06:27

Total Clouds (% Sky Obscured)

80
85
81
95
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
97
99
100

Low Clouds (% Sky Obscured)

10
25
14
29
22
42
21
33
39
86
85
86
87
90
89
91
87
90
84
87
89
75
66
75

Medium Clouds (% Sky Obscured)

68
76
81
88
86
100
100
90
100
98
100
100
100
100
100
100
100
100
100
100
100
88
90
100

High Clouds (% Sky Obscured)

80
85
51
80
100
100
100
100
67
100
100
51
19
20
57
70
46
97
100
100
100
47
38
43

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
9
7
9
9

Fog (%)

2
1
2
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
34
34

Precipitation Type

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

Precipitation Probability (%)

2
3
6
13
7
11
13
14
22
50
64
69
70
70
63
57
65
81
94
95
95
37
34
63

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.6
0.5
1.1
0
0
0

Wind Speed/Direction (mph)

7
6
5
7
7
6
6
5
6
6
5
5
4
5
4
4
5
5
5
5
5
5
6
5

Chance of Frost

Temperature (°C)

10
10
10
10
8
7
6
7
6
6
6
7
7
6
6
6
6
6
6
6
6
6
7
8

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
76
80
85
90
90
88
90
88
86
83
82
82
82
80
82
82
83
90
93
93
94
90
88

Pressure (mb)

1006
1005
1005
1005
1005
1006
1006
1006
1007
1007
1007
1007
1007
1006
1006
1006
1005
1005
1006
1006
1007
1007
1007
1006

Ozone (du)

290
291
293
298
302
302
300
299
301
306
308
315
327
333
335
333
338
342
355
368
369
369
373
379

Monday 22

Waxing Crescent 6%

10:47

19:07

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 08:14, Set: 17:00, Transit: 12:37. Moon - Rise: 10:47, Set: 19:07. Civil Dark: 17:34 - 07:40. Nautical Dark: 18:11 - 07:03. Astro Dark: 18:47 - 06:27

Total Clouds (% Sky Obscured)

100
99
100
100
100
100
100
100
100
100
100
100
100
99
100
100
100
100
100
100
100
100
98
100

Low Clouds (% Sky Obscured)

72
67
70
75
45
29
37
48
45
70
77
78
20
16
11
10
29
7
3
0
0
0
0
5

Medium Clouds (% Sky Obscured)

100
99
100
100
100
100
100
100
100
100
100
100
100
95
89
75
78
85
92
88
92
100
92
98

High Clouds (% Sky Obscured)

14
80
100
100
100
100
100
100
86
100
100
100
100
93
100
100
100
100
100
100
100
100
95
100

ISS Passover

Visibility (miles)

8
5
5
4
9
9
9
9
9
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

95
88
93
57
34
45
37
34
51
52
37
44
33
15
11
11
8
4
8
6
1
1
0
0

Precipitation Amount (mm)

1.1
0.6
0.8
0.2
0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
90
94
94
94
93
93
93
91
91
91
88
85
85
85
85
85
85
88
91
91
89
83
78

Pressure (mb)

1006
1005
1006
1006
1006
1006
1006
1006
1006
1007
1007
1007
1006
1007
1006
1007
1007
1007
1007
1007
1007
1008
1008
1007

Ozone (du)

384
388
391
395
397
400
403
405
407
408
410
411
413
411
409
407
406
404
400
400
401
403
403
403

Tuesday 23

Waxing Crescent 12%

11:11

20:17

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 08:14, Set: 17:00, Transit: 12:38. Moon - Rise: 11:11, Set: 20:17. Civil Dark: 17:34 - 07:41. Nautical Dark: 18:11 - 07:03. Astro Dark: 18:47 - 06:28

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)

18
13
8
21
22
56
61
66
80
87
86
100
100
100
100
100
100
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

98
88
56
100
78
65
100
100
98
100
100
100
100
100
100
100
99
65
49
26
7
3
2
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
80
39
26
12
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
7
3
3
4
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0

Fog (%)

0
0
0
0
0
0
0
0
66
61
52
41
67
67
67
67
67
67
67
67
67
67
67
67

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
11
2
3
0
2
0
0
0
0
0
0
0
0
0
0
13
1
0
3
14
8
3

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

Chance of Frost

Temperature (°C)

7
6
6
5
4
3
3
2
2
2
2
2
1
1
1
1
1
1
0
1
0
0
0
0

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
78
81
91
98
98
98
98
96
98
98
96
96
96
98
98
100
100
100
100
98
100
98
96

Pressure (mb)

1007
1007
1007
1008
1009
1009
1010
1010
1010
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1012
1012
1013
1012

Ozone (du)

401
396
395
393
394
393
392
393
390
387
384
385
385
384
385
385
384
386
385
386
386
382
381
382

Wednesday 24

Waxing Crescent 19%

11:31

21:28

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 08:15, Set: 17:01, Transit: 12:38. Moon - Rise: 11:31, Set: 21:28. Civil Dark: 17:35 - 07:41. Nautical Dark: 18:12 - 07:04. Astro Dark: 18:48 - 06:28

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
96
94
95
95
96
94
92
90

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
98
99
99
100
100
100
100
92
87
81
75
69
66
61
63
65

Medium Clouds (% Sky Obscured)

1
2
3
3
2
2
20
34
45
45
45
50
50
52
88
95
90
85
85
81
84
77
85
83

High Clouds (% Sky Obscured)

0
0
0
0
0
0
30
57
85
90
95
90
85
81
76
51
25
0
20
39
63
46
24
4

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Fog (%)

67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67

Precipitation Type

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

Precipitation Probability (%)

3
17
7
11
29
24
35
41
35
55
67
76
75
84
95
95
95
95
95
88
80
61
72
57

Precipitation Amount (mm)

0
0
0
0
0.1
0
0.1
0.1
0
0.3
0.4
0.5
0.5
0.6
0.9
1.1
1.1
1.1
1.2
0.4
0.5
0.2
0.4
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
96
98
98
100
98
98
98
94
94
94
94
92
92
94
92
94
94
94
96
94
94
92
94

Pressure (mb)

1012
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1015
1015
1016
1016
1016

Ozone (du)

381
380
381
382
383
384
389
393
391
392
393
394
393
388
384
383
384
387
388
386
386
386
385
382

Thursday 25

Waxing Crescent 28%

11:50

22:39

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

Sun - Rise: 08:15, Set: 17:02, Transit: 12:39. Moon - Rise: 11:50, Set: 22:39. Civil Dark: 17:35 - 07:41. Nautical Dark: 18:13 - 07:04. Astro Dark: 18:48 - 06:28

Total Clouds (% Sky Obscured)

93
97
100
100
100
100
98
80
82
82
56
19
24
30
38
46
56
62
63
63
63
56
53
45

Low Clouds (% Sky Obscured)

69
72
67
59
65
71
60
33
21
11
6
3
3
3
3
4
4
4
4
3
2
1
0
0

Medium Clouds (% Sky Obscured)

91
93
99
98
94
90
78
31
26
81
49
10
18
25
30
29
21
20
16
12
9
10
10
11

High Clouds (% Sky Obscured)

3
2
1
2
6
4
2
3
5
5
4
1
0
1
1
2
3
3
5
7
9
9
5
5

ISS Passover

Visibility (miles)

0
0
0
0
0
0
1
6
6
7
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67

Precipitation Type

Very Light Rain
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 (%)

52
30
11
7
2
1
1
2
3
3
3
3
9
7
0
1
2
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
98
98
100
100
100
98
98
96
96
94
91
91
91
89
87
87
87
87
84
83
80
79
77

Pressure (mb)

1016
1016
1016
1017
1018
1019
1019
1020
1021
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1022

Ozone (du)

381
381
382
381
382
381
380
381
382
381
380
379
380
380
380
380
380
380
380
381
382
382
383
384

Friday 26

Waxing Crescent 38%

12:08

23:50

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 08:15, Set: 17:02, Transit: 12:39. Moon - Rise: 12:08, Set: 23:50. Civil Dark: 17:36 - 07:42. Nautical Dark: 18:13 - 07:04. Astro Dark: 18:49 - 06:29

Total Clouds (% Sky Obscured)

40
45
50
60
64
79
82
90
89
91
93
95
96
98
99
96
92
89
83
73
60
67
82
89

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

16
21
23
24
37
68
73
75
74
64
53
43
29
16
2
1
1
0
0
0
0
2
3
5

High Clouds (% Sky Obscured)

5
5
5
10
14
18
30
50
53
55
67
70
79
90
98
84
69
49
46
42
53
58
63
74

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 (%)

67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
82
89
96
94
92
92
91
91
91
91
91
89
91
89
89
87
87
87
84
81
78
79
77

Pressure (mb)

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

Ozone (du)

384
385
386
387
386
385
384
384
383
383
380
377
374
371
367
364
365
366
367
366
365
364
363
362

Saturday 27

First Quarter 49%

12:27

01:03

13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 OK
23 OK
00 OK
01 OK
02 OK
03 OK
04 Good
05 Good
06 Good

Sun - Rise: 08:15, Set: 17:03, Transit: 12:40. Moon - Rise: 12:27, Set: 01:03. Civil Dark: 17:37 - 07:42. Nautical Dark: 18:14 - 07:05. Astro Dark: 18:50 - 06:29

Total Clouds (% Sky Obscured)

88
95
95
94
83
81
72
63
51
38
28
16
18
19
14
12
8
6

Low Clouds (% Sky Obscured)

1
2
2
5
8
10
8
5
2
3
3
3
3
3
3
3
4
3

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

79
85
80
93
83
81
72
63
51
38
28
15
15
17
10
5
3
2

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67

Precipitation Type

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

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
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-2
2
2
2
2
2
2
-3
-3
-2
-3
-2
-3
-2
-2
-2
-2
-3

Dew Point (°C)

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

Relative Humidity (%)

78
83
89
96
96
96
96
96
96
94
94
96
94
94
94
94
94
92

Pressure (mb)

1024
1024
1025
1025
1025
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1026

Ozone (du)

362
359
356
354
352
351
350
349
347
346
345
344
343
343
344
344
343
342

Forecast for La Chapelle-en-Vercors, Drôme, France (44.97,5.42)

Generated: 21/12/25 13:33:24. Forecast: 21/12/25 to 27/12/25. Timezone: UTC+1.00