Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 15

Waning Crescent 28%

00:14

16:20

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

Sun - Rise: 06:35, Set: 19:05, Transit: 12:49. Moon - Rise: 00:14, Set: 16:20. Civil Dark: 19:35 - 06:05. Nautical Dark: 20:11 - 05:29. Astro Dark: 20:48 - 04:52

Total Clouds (% Sky Obscured)

32
28
5
67
26
17
20
10
7
0
0
1
0
0
26
49
32
0
0
2
6
4
3
3

Low Clouds (% Sky Obscured)

15
8
5
16
0
0
0
0
0
0
0
0
0
0
22
34
22
0
0
0
3
2
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
31
16
17
20
10
7
0
0
1
0
0
0
4
2
0
0
2
6
3
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
1
2
1
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
2
2
2
2
2
2
1
1
2
2
2
3
3
3
3
3
2
1
2
2
3
3
3

Chance of Frost

Temperature (°C)

18
18
18
17
13
11
9
9
9
9
8
9
8
7
7
7
7
10
15
18
19
20
21
22

Feels Like (°C)

19
20
20
19
15
12
9
8
8
10
10
9
8
8
8
8
8
11
17
19
20
21
22
23

Dew Point (°C)

4
5
6
10
8
7
6
5
5
6
5
6
5
5
4
4
4
5
7
8
7
7
8
8

Relative Humidity (%)

39
40
43
62
71
76
78
80
78
80
79
81
81
82
82
84
82
72
59
51
47
43
41
40

Pressure (mb)

1025
1025
1025
1025
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1028
1028
1027
1027
1026
1026
1025
1024

Ozone (du)

288
289
288
289
289
289
289
289
290
289
288
287
287
286
285
286
286
286
285
283
281
280
279
278

Tuesday 16

Waning Crescent 18%

01:30

17:01

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 OK
05 OK
06 OK
07 OK
08 Good
09 Good
10 Bad
11 Bad
12 OK
13 Bad
14 Bad

Sun - Rise: 06:36, Set: 19:03, Transit: 12:48. Moon - Rise: 01:30, Set: 17:01. Civil Dark: 19:33 - 06:06. Nautical Dark: 20:08 - 05:30. Astro Dark: 20:46 - 04:53

Total Clouds (% Sky Obscured)

2
2
2
2
1
1
1
2
2
2
1
2
14
32
43
45
32
8
13
67
49
48
67
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
14
32
43
40
32
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)

2
2
2
2
1
1
1
2
2
2
1
2
2
0
4
4
4
8
13
67
49
48
67
100

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

Chance of Frost

Temperature (°C)

22
22
22
20
17
13
12
11
11
11
10
10
10
9
9
9
9
12
17
20
21
22
23
24

Feels Like (°C)

23
23
23
21
18
15
13
13
12
13
11
12
11
11
11
10
10
13
18
22
21
22
22
22

Dew Point (°C)

8
9
10
13
12
9
8
7
7
7
7
7
6
6
6
6
6
7
9
10
10
9
9
9

Relative Humidity (%)

40
42
47
65
73
75
76
75
75
76
77
78
80
81
82
81
81
72
60
53
47
43
40
39

Pressure (mb)

1024
1023
1023
1023
1023
1024
1024
1024
1023
1023
1023
1023
1023
1022
1022
1022
1022
1022
1021
1021
1020
1019
1019
1018

Ozone (du)

278
278
278
279
278
279
279
280
279
279
278
277
278
278
278
279
279
279
279
279
278
279
279
278

Wednesday 17

Waning Crescent 11%

02:47

17:31

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

Sun - Rise: 06:38, Set: 19:01, Transit: 12:48. Moon - Rise: 02:47, Set: 17:31. Civil Dark: 19:31 - 06:07. Nautical Dark: 20:06 - 05:32. Astro Dark: 20:43 - 04:55

Total Clouds (% Sky Obscured)

100
100
100
100
99
100
89
76
45
40
8
1
12
10
0
0
3
34
67
62
70
83
99
84

Low Clouds (% Sky Obscured)

4
6
0
0
0
0
0
2
0
0
0
0
0
0
0
0
0
9
13
55
26
27
29
51

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
4
18
29
49
25

High Clouds (% Sky Obscured)

100
100
100
100
98
100
78
50
45
40
8
1
12
10
0
0
2
22
47
48
69
81
85
55

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
1
1
3
12
25
25
35

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)

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

Chance of Frost

Temperature (°C)

23
23
22
20
17
15
15
15
14
14
13
13
12
12
12
11
11
14
17
19
21
21
21
21

Feels Like (°C)

22
21
21
19
16
14
14
14
13
15
14
14
14
13
13
13
12
15
17
16
19
19
20
20

Dew Point (°C)

9
9
11
13
12
10
10
11
11
11
11
11
11
11
11
10
9
10
9
10
13
12
12
12

Relative Humidity (%)

39
40
48
63
71
72
75
80
82
83
84
87
92
92
93
90
88
76
61
57
60
57
58
55

Pressure (mb)

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

Ozone (du)

277
278
279
279
279
280
281
281
280
279
280
279
281
282
284
284
284
284
285
284
285
286
287
286

Thursday 18

Waning Crescent 5%

04:02

17:55

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

Sun - Rise: 06:39, Set: 18:59, Transit: 12:48. Moon - Rise: 04:02, Set: 17:55. Civil Dark: 19:29 - 06:09. Nautical Dark: 20:04 - 05:33. Astro Dark: 20:41 - 04:56

Total Clouds (% Sky Obscured)

69
64
64
62
63
59
41
86
75
29
13
8
5
6
10
11
11
16
21
17
21
27
31
33

Low Clouds (% Sky Obscured)

38
46
28
16
10
18
11
86
75
22
6
4
2
0
1
1
2
2
4
7
18
27
30
33

Medium Clouds (% Sky Obscured)

17
11
24
32
39
30
20
11
7
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

28
1
0
0
0
0
0
0
0
0
0
0
1
1
2
1
1
1
1
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 (%)

33
40
28
19
7
6
4
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
11
9
9
8
9
9
9
10
9
9
8
7
7
7
6
7
8
10
10
11
11
11
11

Chance of Frost

Temperature (°C)

20
19
19
18
16
15
13
13
12
11
10
9
8
7
6
6
6
6
7
9
9
10
10
10

Feels Like (°C)

18
18
17
18
17
15
13
12
9
9
8
8
7
5
6
5
5
5
5
6
6
6
6
6

Dew Point (°C)

10
11
12
12
12
12
11
11
8
7
6
6
5
4
4
4
4
3
2
1
1
1
2
2

Relative Humidity (%)

52
56
65
70
78
84
87
87
75
77
76
81
82
81
85
88
90
78
68
59
54
55
57
56

Pressure (mb)

1012
1012
1013
1013
1013
1014
1015
1015
1015
1015
1016
1017
1017
1017
1017
1018
1019
1019
1020
1020
1020
1020
1020
1020

Ozone (du)

287
287
289
288
287
287
285
282
281
281
280
281
282
282
283
284
286
288
290
292
294
295
297
298

Friday 19

Waning Crescent 1%

05:14

18:13

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

Sun - Rise: 06:40, Set: 18:57, Transit: 12:47. Moon - Rise: 05:14, Set: 18:13. Civil Dark: 19:27 - 06:10. Nautical Dark: 20:02 - 05:35. Astro Dark: 20:39 - 04:58

Total Clouds (% Sky Obscured)

36
27
1
3
4
5
2
0
2
7
3
4
5
6
5
3
1
4
6
7
4
6
8
5

Low Clouds (% Sky Obscured)

25
16
1
2
2
3
1
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
1
3
2
2
3
4
2
2
1
2
2
1
3
6
8
5

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)

11
11
11
9
9
7
6
6
6
6
5
5
5
5
4
4
4
5
5
5
5
5
4
4

Chance of Frost

Temperature (°C)

10
10
10
9
7
6
4
4
3
3
2
1
1
0
0
1
2
2
5
8
10
12
13
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
53
48
51
58
65
72
76
82
86
89
91
89
89
89
83
77
70
57
47
37
33
29
26

Pressure (mb)

1020
1021
1021
1022
1023
1024
1024
1025
1026
1026
1027
1028
1028
1029
1029
1029
1030
1030
1030
1030
1029
1029
1028
1027

Ozone (du)

299
299
299
299
299
299
298
296
295
292
289
286
284
281
279
278
278
277
278
278
279
277
276
275

Saturday 20

Waning Crescent 0%

06:23

18:30

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

Sun - Rise: 06:41, Set: 18:55, Transit: 12:47. Moon - Rise: 06:23, Set: 18:30. Civil Dark: 19:25 - 06:11. Nautical Dark: 20:00 - 05:36. Astro Dark: 20:37 - 04:59

Total Clouds (% Sky Obscured)

3
0
1
2
1
10
18
26
18
12
7
37
66
96
98
99
100
100
100
100
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
1
1
1
1
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
3
4
3
2
1
5
9
14
12
13
14
18

High Clouds (% Sky Obscured)

3
0
1
2
1
10
18
26
18
12
6
18
15
19
15
10
10
37
68
100
98
98
99
99

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

Chance of Frost

Temperature (°C)

15
15
14
12
9
7
6
5
5
4
4
3
3
3
2
4
5
6
9
12
14
16
17
18

Feels Like (°C)

14
14
14
15
15
15
5
5
5
5
4
4
2
2
1
1
1
1
5
6
7
8
9
10

Dew Point (°C)

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

Relative Humidity (%)

27
28
29
36
44
55
56
58
59
58
57
55
54
53
53
52
53
51
46
41
36
36
35
34

Pressure (mb)

1027
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1026
1025
1025
1024
1023
1023
1022
1021

Ozone (du)

274
274
273
273
272
272
272
272
271
271
271
271
271
271
271
272
273
274
274
274
274
274
274
274

Sunday 21

New Moon 1%

07:30

18:44

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: 06:43, Set: 18:53, Transit: 12:47. Moon - Rise: 07:30, Set: 18:44. Civil Dark: 19:23 - 06:13. Nautical Dark: 19:58 - 05:37. Astro Dark: 20:34 - 05:01

Total Clouds (% Sky Obscured)

100
100
99
98
93
86
80
71
71
72
76
75
84
89
88
85
91

Low Clouds (% Sky Obscured)

0
0
0
0
0
1
1
2
6
10
15
19
28
35
37
41
43

Medium Clouds (% Sky Obscured)

13
7
11
17
20
16
12
9
8
7
6
9
12
16
16
22
23

High Clouds (% Sky Obscured)

100
99
96
90
75
59
48
43
61
72
76
75
73
54
64
72
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
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
29
42
51

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
18
18
16
14
12
11
11
11
11
11
11
11
11
11
11
12

Feels Like (°C)

15
16
15
15
15
15
9
9
9
10
10
10
10
11
10
10
10

Dew Point (°C)

4
5
7
7
7
7
6
7
6
7
7
7
8
8
8
9
9

Relative Humidity (%)

38
43
49
56
62
71
71
72
72
75
75
77
80
83
85
84
83

Pressure (mb)

1021
1020
1019
1019
1019
1019
1019
1019
1018
1018
1018
1017
1017
1017
1016
1016
1016

Ozone (du)

274
274
274
274
274
273
273
272
272
272
272
271
271
271
272
272
272

Forecast for Lac-Saint-Louis, Lanaudière, Canada (46.53,-73.70)

Generated: 15/09/25 15:09:54. Forecast: 15/09/25 to 21/09/25. Timezone: UTC-4.00