Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 12%

03:01

18:05

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

Sun - Rise: 07:00, Set: 19:21, Transit: 13:10. Moon - Rise: 03:01, Set: 18:05. Civil Dark: 19:50 - 06:31. Nautical Dark: 20:24 - 05:57. Astro Dark: 20:58 - 05:22

Total Clouds (% Sky Obscured)

14
6
0
5
3
0
0
0
0
0
0
0
0
19
36
31
18
11
0
1
2
17
3
86

Low Clouds (% Sky Obscured)

4
2
2
1
2
1
1
0
0
0
0
0
0
8
15
11
5
3
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
0
0
2
1
0
1
2
17
3
83

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
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

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)

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

Chance of Frost

Temperature (°C)

16
16
19
18
17
17
17
17
19
22
24
26
27
28
28
28
28
28
26
23
22
21
21
20

Feels Like (°C)

18
17
22
19
17
19
18
18
19
23
25
27
28
29
29
29
29
29
30
25
21
20
21
19

Dew Point (°C)

15
14
16
15
14
14
13
13
13
14
13
12
12
13
13
13
14
15
18
17
16
15
15
14

Relative Humidity (%)

91
90
79
82
86
81
79
74
70
59
48
42
39
38
38
39
41
45
60
66
69
69
68
67

Pressure (mb)

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

Ozone (du)

263
263
262
261
262
262
261
262
262
260
260
259
259
258
259
260
262
262
262
261
262
263
263
262

Friday 19

Waning Crescent 6%

04:13

18:27

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

Sun - Rise: 07:01, Set: 19:19, Transit: 13:10. Moon - Rise: 04:13, Set: 18:27. Civil Dark: 19:48 - 06:32. Nautical Dark: 20:22 - 05:58. Astro Dark: 20:56 - 05:24

Total Clouds (% Sky Obscured)

100
96
64
4
2
1
1
2
2
3
3
2
10
24
55
45
36
37
44
34
37
40
29
20

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
3
6
20
24
21
16
5
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)

99
92
64
4
2
1
0
1
2
3
3
1
3
12
22
7
5
13
31
32
34
38
25
15

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)

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

Chance of Frost

Temperature (°C)

20
20
19
19
19
19
19
19
19
22
25
27
29
29
30
30
29
29
28
25
23
22
22
22

Feels Like (°C)

20
19
20
18
19
18
19
19
20
24
27
29
30
30
30
30
31
31
30
26
24
21
22
20

Dew Point (°C)

14
14
13
13
13
13
13
13
14
15
14
15
15
15
15
15
16
16
19
18
17
16
16
15

Relative Humidity (%)

68
68
68
68
67
68
69
69
70
61
51
47
43
41
41
42
43
46
59
67
69
67
66
66

Pressure (mb)

1027
1027
1026
1026
1026
1026
1026
1026
1027
1027
1027
1027
1027
1026
1026
1026
1026
1025
1026
1026
1027
1027
1027
1027

Ozone (du)

263
263
263
263
263
263
264
264
262
260
260
259
258
258
259
260
260
260
259
260
260
259
259
258

Saturday 20

Waning Crescent 2%

05:23

18:46

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

Sun - Rise: 07:02, Set: 19:17, Transit: 13:10. Moon - Rise: 05:23, Set: 18:46. Civil Dark: 19:46 - 06:33. Nautical Dark: 20:20 - 06:00. Astro Dark: 20:54 - 05:25

Total Clouds (% Sky Obscured)

26
41
61
75
63
83
97
72
56
38
41
48
9
65
74
23
78
32
2
1
63
3
1
2

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)

0
0
0
0
0
0
48
19
7
2
4
0
0
19
27
1
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

14
28
48
59
35
65
92
24
20
21
23
48
7
51
60
21
68
32
2
0
63
2
0
1

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)

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

Chance of Frost

Temperature (°C)

21
21
21
21
20
20
20
20
21
22
25
27
28
28
29
28
28
28
26
24
23
22
21
20

Feels Like (°C)

21
20
20
20
19
19
19
18
20
23
26
27
29
30
30
30
29
29
29
27
24
24
22
22

Dew Point (°C)

15
15
14
14
14
13
13
12
14
14
15
15
15
15
15
14
14
15
18
18
17
16
15
14

Relative Humidity (%)

66
66
66
66
65
65
63
62
64
58
52
48
45
44
43
41
42
45
60
70
71
70
69
68

Pressure (mb)

1027
1027
1027
1026
1026
1025
1025
1025
1025
1025
1025
1025
1024
1024
1023
1023
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

258
258
258
258
258
259
259
259
260
260
260
261
261
262
262
262
261
261
261
262
262
263
263
263

Sunday 21

New Moon 0%

06:30

19:03

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

Sun - Rise: 07:03, Set: 19:15, Transit: 13:09. Moon - Rise: 06:30, Set: 19:03. Civil Dark: 19:44 - 06:35. Nautical Dark: 20:18 - 06:01. Astro Dark: 20:52 - 05:26

Total Clouds (% Sky Obscured)

2
2
3
4
5
4
10
11
9
10
13
9
17
24
23
26
33
40
40
33
29
9
10
8

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)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
5
9
10
8

High Clouds (% Sky Obscured)

1
1
3
3
4
4
7
7
6
5
7
6
9
15
13
12
18
20
27
22
16
1
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)

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

Chance of Frost

Temperature (°C)

20
19
19
18
18
18
18
18
19
21
23
25
26
27
27
27
27
27
25
22
21
20
19
19

Feels Like (°C)

21
20
20
19
19
19
19
17
18
22
23
25
26
26
26
26
25
26
25
22
21
21
21
20

Dew Point (°C)

13
12
12
11
10
10
11
10
11
12
12
13
13
13
12
12
13
14
17
16
16
15
14
14

Relative Humidity (%)

65
63
61
62
60
60
61
60
62
56
50
47
43
41
39
40
42
45
60
69
73
74
73
73

Pressure (mb)

1022
1022
1022
1021
1021
1021
1020
1020
1020
1020
1020
1020
1020
1019
1019
1018
1018
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

264
265
265
266
266
266
266
266
266
267
268
268
268
268
267
266
265
265
266
265
265
265
264
264

Monday 22

Waxing Crescent 0%

07:36

19:20

00 Good
01 Good
02 Good
03 OK
04 OK
05 OK
06 OK
07 Bad
08 OK
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

Sun - Rise: 07:04, Set: 19:13, Transit: 13:09. Moon - Rise: 07:36, Set: 19:20. Civil Dark: 19:42 - 06:36. Nautical Dark: 20:16 - 06:02. Astro Dark: 20:50 - 05:28

Total Clouds (% Sky Obscured)

7
6
13
21
25
26
20
93
22
61
50
96
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
8
13
15
17
18
16
18
20
17
21
24
64
44
55
41
24
26
54
61
72
81
77

Medium Clouds (% Sky Obscured)

7
6
13
21
25
17
8
0
18
35
49
52
51
49
48
46
43
40
35
97
98
99
100
100

High Clouds (% Sky Obscured)

0
0
0
0
1
1
1
25
22
61
50
96
100
100
100
100
100
100
100
100
99
97
96
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
Very Light Rain
Light Rain
Very Light Rain
None
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
3
3
1
5
7
5
20
34
44
67
61
41
61
69
73
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.6
0.3
0
0.2
0.3
0.4
2.4
2.6
2.1
2

Wind Speed/Direction (mph)

0
0
0
0
0
0
0
0
1
0
0
0
1
2
2
5
7
5
4
1
0
1
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

20
19
19
19
18
19
19
19
18
21
22
23
23
23
23
22
22
22
22
21
20
21
20
21

Dew Point (°C)

13
13
13
12
12
13
13
14
15
14
15
15
16
17
16
15
14
15
16
17
18
18
18
18

Relative Humidity (%)

73
74
74
73
74
78
81
83
82
72
67
62
61
66
67
62
59
61
69
84
88
89
89
91

Pressure (mb)

1017
1017
1017
1016
1016
1015
1015
1016
1016
1016
1016
1016
1016
1015
1015
1015
1014
1014
1015
1015
1015
1014
1015
1015

Ozone (du)

264
264
265
265
265
265
265
265
266
267
268
268
268
268
269
270
269
269
269
269
270
271
272
273

Tuesday 23

Waxing Crescent 3%

08:40

19:38

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
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:06, Set: 19:12, Transit: 13:09. Moon - Rise: 08:40, Set: 19:38. Civil Dark: 19:40 - 06:37. Nautical Dark: 20:14 - 06:03. Astro Dark: 20:48 - 05:29

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
95
92
89
86
81
84
88
91
93

Low Clouds (% Sky Obscured)

72
66
73
74
77
77
80
82
78
75
74
80
81
82
82
82
82
84
84
81
76
74
73
75

Medium Clouds (% Sky Obscured)

100
100
96
91
87
81
72
63
56
46
34
22
9
0
0
0
0
5
5
10
4
3
0
11

High Clouds (% Sky Obscured)

91
96
97
98
100
100
100
100
100
100
100
100
100
100
94
79
63
45
28
15
47
74
84
93

ISS Passover

Visibility (miles)

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

Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
93
77
82

Precipitation Amount (mm)

1.8
1.6
1.2
1.3
1.3
1.1
1
1
0.9
0.8
0.6
0.9
1
1.1
1.2
1.2
1.1
1
1
1
0.8
0.6
0.5
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
19
18
18
18
18
18
19
19
19
20
20
20
20
20
20
20
20
19
18
18
18
18
17

Feels Like (°C)

21
21
20
19
20
20
20
20
20
20
20
20
20
20
20
21
21
21
21
21
22
18
18
19

Dew Point (°C)

18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
17
17
17
17
17
18
18
17
17

Relative Humidity (%)

93
96
100
96
96
96
95
95
95
92
89
86
85
85
84
82
82
82
86
92
98
98
98
98

Pressure (mb)

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

Ozone (du)

274
275
275
276
276
276
276
277
278
278
278
279
279
279
279
280
281
281
282
283
284
285
286
286

Wednesday 24

Waxing Crescent 7%

09:45

19:58

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

Sun - Rise: 07:07, Set: 19:10, Transit: 13:08. Moon - Rise: 09:45, Set: 19:58. Civil Dark: 19:38 - 06:38. Nautical Dark: 20:12 - 06:04. Astro Dark: 20:46 - 05:30

Total Clouds (% Sky Obscured)

95
98
96
95
93
94
95
97
82
70
56
56
50
45
40
33
26
21
21
29
30
42
51
60

Low Clouds (% Sky Obscured)

77
80
84
88
92
91
89
86
70
54
39
33
25
18
15
15
11
15
17
18
11
12
8
8

Medium Clouds (% Sky Obscured)

23
34
25
16
7
7
9
15
13
14
9
8
4
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

95
98
67
37
16
17
19
14
7
4
1
9
19
29
21
12
4
3
1
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
0
0
0
0
3
6
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

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

Precipitation Probability (%)

73
49
63
59
31
46
43
27
30
25
14
12
8
0
1
1
0
4
6
6
10
9
4
12

Precipitation Amount (mm)

0.4
0
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
17
16
17
16
16
16
16
16
17
18
19
20
20
21
20
20
19
18
16
14
15
14
14

Feels Like (°C)

19
19
19
17
17
17
16
16
16
17
17
18
18
18
18
21
20
18
19
19
20
13
15
15

Dew Point (°C)

17
17
16
16
16
16
15
15
15
15
14
13
12
10
8
8
8
7
9
11
13
13
13
12

Relative Humidity (%)

98
100
98
98
98
96
96
95
95
86
77
70
59
51
44
45
45
46
58
72
89
89
89
89

Pressure (mb)

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

Ozone (du)

287
287
287
287
288
288
289
291
292
294
295
297
297
297
297
298
299
300
300
300
300
302
303
304

Forecast for Margine Coperta-Traversagna, Provincia di Pistoia, Italy (43.88,10.76)

Generated: 18/09/25 07:52:57. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+2.00