Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 16

Waning Crescent 30%

00:18

18:02

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: 07:18, Set: 19:51, Transit: 13:35. Moon - Rise: 00:18, Set: 18:02. Civil Dark: 20:24 - 06:45. Nautical Dark: 21:03 - 06:06. Astro Dark: 21:45 - 05:24

Total Clouds (% Sky Obscured)

60
65
87
83
83
87
83
87
77
78
78
82
83
80
78
80
78
98
72
79
83
91
99
93

Low Clouds (% Sky Obscured)

60
59
68
74
74
69
73
68
65
60
62
61
58
47
47
31
31
30
33
20
6
17
9
18

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
30
0
25
18
0
0
0
33
20
0
0
5
20
8
12
9
45
39

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
85
72
79
83
77
95
78

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
9
9
9
9
9
9

Fog (%)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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
13
4
15
5

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)

21
20
18
18
14
14
15
14
14
14
15
17
17
17
16
17
16
17
15
13
11
12
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
10
10
10
12
11
11
11
11
11
12
12
12
14
14
15
15
13
12
12
11
10
10
9

Dew Point (°C)

10
10
10
10
11
11
11
10
10
11
11
11
10
9
8
8
8
8
4
5
5
7
8
9

Relative Humidity (%)

69
72
72
73
75
79
78
79
78
80
77
72
66
55
53
48
49
52
42
46
50
61
70
79

Pressure (mb)

1012
1012
1013
1013
1013
1014
1014
1015
1015
1016
1016
1016
1017
1017
1017
1017
1017
1018
1018
1019
1019
1020
1021
1021

Ozone (du)

301
302
303
303
304
305
305
304
305
307
308
309
311
308
307
306
305
302
296
292
288
284
283
282

Wednesday 17

Waning Crescent 20%

01:37

18:29

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: 07:20, Set: 19:49, Transit: 13:34. Moon - Rise: 01:37, Set: 18:29. Civil Dark: 20:22 - 06:47. Nautical Dark: 21:01 - 06:08. Astro Dark: 21:42 - 05:26

Total Clouds (% Sky Obscured)

100
92
92
86
92
100
100
100
96
100
94
98
96
100
100
100
99
99
99
98
95
90
81
82

Low Clouds (% Sky Obscured)

15
31
47
37
49
33
35
35
59
41
40
44
57
81
99
83
81
99
99
98
95
90
79
74

Medium Clouds (% Sky Obscured)

83
56
57
67
73
86
93
86
89
100
90
96
92
100
100
73
94
59
59
56
55
57
42
24

High Clouds (% Sky Obscured)

100
82
86
77
84
100
94
100
23
46
20
2
0
1
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
8
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
Very Light Rain
None
None
Very Light Rain
None
None
None
None
None
None
Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

1
0
0
0
1
31
49
32
39
59
45
19
21
28
45
47
72
25
3
1
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0.2
0
0
0.3
0
0
0
0
0
0
0.5
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
10
10
10
10
10
10
10
10
10
9
10
12
12
13
14
14
13
12
12
11
10
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
9
10
11
11
10
9
9
9
10
11
11
12
12
11
11
11
12
12
14
15
16
16
17

Dew Point (°C)

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

Relative Humidity (%)

80
84
87
92
93
95
93
90
87
81
90
90
84
80
78
68
62
54
51
49
57
66
71
74

Pressure (mb)

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

Ozone (du)

279
275
272
267
264
263
261
260
258
255
255
254
252
251
251
251
250
249
249
250
252
255
254
253

Thursday 18

Waning Crescent 12%

02:59

18:49

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

Sun - Rise: 07:21, Set: 19:47, Transit: 13:34. Moon - Rise: 02:59, Set: 18:49. Civil Dark: 20:19 - 06:48. Nautical Dark: 20:58 - 06:09. Astro Dark: 21:39 - 05:28

Total Clouds (% Sky Obscured)

74
48
51
59
52
64
77
78
76
76
95
75
76
59
39
37
33
34
43
44
32
23
11
25

Low Clouds (% Sky Obscured)

60
48
51
59
52
64
77
78
76
76
93
75
76
59
39
37
33
34
43
44
32
23
10
20

Medium Clouds (% Sky Obscured)

20
0
0
0
0
0
0
0
0
0
1
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
1
1
6

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
10
10
10
10
10
10
9
9
10
12
14
13
13
13
13
13
12
10
7
6
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
13
13
12
12
11
10
10
10
9
7
6
6
5
4
3
4
4
5
7
8
8
8
9

Relative Humidity (%)

76
78
79
79
77
74
73
73
70
61
50
44
39
34
30
28
28
28
31
40
47
52
53
58

Pressure (mb)

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

Ozone (du)

253
252
251
251
251
252
253
253
252
251
250
250
250
250
251
251
251
252
253
253
252
253
253
253

Friday 19

Waning Crescent 6%

04:20

19:04

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

Sun - Rise: 07:23, Set: 19:44, Transit: 13:33. Moon - Rise: 04:20, Set: 19:04. Civil Dark: 20:17 - 06:50. Nautical Dark: 20:56 - 06:11. Astro Dark: 21:37 - 05:30

Total Clouds (% Sky Obscured)

14
4
3
3
4
8
17
18
21
24
76
69
88
7
8
8
18
7
18
16
17
12
18
21

Low Clouds (% Sky Obscured)

12
4
0
3
4
8
17
17
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
16
3
4
9
21

High Clouds (% Sky Obscured)

1
0
0
0
0
1
2
4
21
24
76
69
83
7
8
8
18
6
18
16
17
12
18
21

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)

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

Chance of Frost

Temperature (°C)

16
16
16
15
15
15
14
14
14
16
19
21
23
25
26
26
27
27
25
23
22
21
20
20

Feels Like (°C)

15
15
15
15
14
14
13
13
13
14
17
18
20
23
25
25
25
24
25
22
20
20
19
19

Dew Point (°C)

9
9
9
8
8
8
7
7
7
8
8
7
7
7
6
4
4
5
7
11
13
14
15
14

Relative Humidity (%)

62
64
64
62
62
61
62
62
60
56
46
41
36
31
27
24
22
24
31
44
56
66
72
69

Pressure (mb)

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

Ozone (du)

253
252
252
252
251
251
250
250
250
250
250
249
249
248
248
248
248
249
249
249
250
251
252
251

Saturday 20

Waning Crescent 2%

05:37

19:16

00 OK
01 OK
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: 07:24, Set: 19:42, Transit: 13:33. Moon - Rise: 05:37, Set: 19:16. Civil Dark: 20:15 - 06:51. Nautical Dark: 20:54 - 06:13. Astro Dark: 21:34 - 05:32

Total Clouds (% Sky Obscured)

30
39
51
64
77
76
87
99
81
68
53
68
85
100
100
100
100
100
100
100
99
99
98
97

Low Clouds (% Sky Obscured)

0
1
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
17
33
55
58
72
66
80

Medium Clouds (% Sky Obscured)

30
39
51
64
70
31
38
88
81
26
18
68
58
88
57
78
70
75
79
86
78
77
69
80

High Clouds (% Sky Obscured)

30
30
17
15
11
32
65
98
65
33
0
33
67
100
100
100
100
99
97
96
91
85
80
53

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
5
9
3

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

Precipitation Probability (%)

0
0
0
0
0
1
4
4
1
1
0
10
17
31
8
21
4
36
58
76
66
52
51
54

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.3
0
0
0.2

Wind Speed/Direction (mph)

9
9
9
9
9
10
10
10
10
10
11
12
13
13
14
10
10
8
8
9
8
8
8
8

Chance of Frost

Temperature (°C)

20
20
20
20
20
20
20
19
20
21
22
24
25
27
26
26
25
25
23
21
20
19
20
19

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
57
56
57
59
59
63
64
60
55
47
41
40
39
45
38
44
42
50
67
80
82
81
86

Pressure (mb)

1018
1017
1017
1017
1016
1016
1015
1015
1015
1015
1014
1014
1014
1013
1013
1012
1012
1012
1012
1012
1012
1012
1012
1012

Ozone (du)

251
251
252
253
253
252
252
253
253
253
253
252
251
250
250
250
250
252
252
253
253
254
255
254

Sunday 21

New Moon 0%

06:51

19:27

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: 07:26, Set: 19:40, Transit: 13:33. Moon - Rise: 06:51, Set: 19:27. Civil Dark: 20:12 - 06:53. Nautical Dark: 20:51 - 06:14. Astro Dark: 21:32 - 05:34

Total Clouds (% Sky Obscured)

96
96
96
98
99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

80
80
63
32
14
17
16
22
59
56
53
58
64
69
69
69
71
72
71
70
65
61
56
36

Medium Clouds (% Sky Obscured)

84
90
93
66
98
99
100
100
98
97
97
89
82
72
81
91
100
100
100
100
99
99
98
72

High Clouds (% Sky Obscured)

26
0
1
2
3
35
68
100
46
70
94
95
96
96
98
99
100
100
100
100
100
98
98
99

ISS Passover

Visibility (miles)

9
1
2
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

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

Precipitation Probability (%)

95
95
95
14
3
15
26
37
58
86
95
90
86
81
95
95
95
88
85
87
85
79
68
58

Precipitation Amount (mm)

0.8
4.8
2
0
0
0
0
0
0.3
0.6
0.6
0.5
0.4
0.4
1
0.8
0.4
0.4
0.4
0.5
0.5
0.4
0.3
0.2

Wind Speed/Direction (mph)

9
11
13
9
8
9
10
10
11
10
9
10
11
12
14
13
12
11
10
9
8
9
9
10

Chance of Frost

Temperature (°C)

19
18
18
17
16
16
16
15
15
16
16
17
17
17
17
17
16
16
15
15
15
14
13
12

Feels Like (°C)

19
17
16
17
15
15
14
13
13
13
13
13
13
13
14
14
13
12
12
12
12
11
11
11

Dew Point (°C)

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

Relative Humidity (%)

86
90
93
95
93
90
92
90
90
85
79
75
68
62
57
58
58
58
58
57
58
61
64
69

Pressure (mb)

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

Ozone (du)

254
254
255
259
261
262
263
263
263
264
264
265
265
266
266
267
268
270
271
271
272
274
275
277

Monday 22

Waxing Crescent 1%

08:04

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: 07:27, Set: 19:38, Transit: 13:32. Moon - Rise: 08:04, Set: 19:38. Civil Dark: 20:10 - 06:55. Nautical Dark: 20:49 - 06:16. Astro Dark: 21:29 - 05:36

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

28
28
50
73
94
83
74
68
77
86
93
88
81
72
79
87
94
96
98
100
96
92
89
85

Medium Clouds (% Sky Obscured)

45
22
18
14
10
20
26
37
27
17
7
35
61
83
89
94
99
73
47
20
43
67
88
80

High Clouds (% Sky Obscured)

99
100
100
100
100
93
85
77
76
72
58
52
72
95
71
47
24
35
51
53
46
39
32
49

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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 (%)

44
8
17
17
9
27
33
32
29
25
20
23
23
25
29
26
19
25
24
18
19
16
9
19

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
12
13
12
12
12
12
12
12
10
10
10
11
11
13
13
13
14
13
13
12
12
12
12

Chance of Frost

Temperature (°C)

12
12
11
12
13
14
13
12
12
12
13
13
14
14
15
15
15
14
14
14
13
13
12
12

Feels Like (°C)

11
10
10
7
7
7
8
8
9
9
9
9
9
9
8
13
13
12
12
13
13
10
11
11

Dew Point (°C)

7
7
7
7
7
7
7
8
9
9
9
9
8
7
6
6
6
6
6
7
8
8
8
8

Relative Humidity (%)

71
73
75
72
68
64
69
75
81
80
77
75
67
60
53
55
56
57
60
64
69
71
75
79

Pressure (mb)

1015
1015
1015
1014
1014
1014
1014
1014
1015
1015
1016
1016
1016
1016
1016
1017
1017
1017
1017
1018
1018
1018
1019
1019

Ozone (du)

278
279
280
282
284
286
287
288
289
289
289
289
290
291
293
294
296
297
299
300
302
303
305
306

Forecast for Elst, Flemish Brabant, Kingdom of Belgium (50.77,4.89)

Generated: 16/09/25 18:02:22. Forecast: 16/09/25 to 22/09/25. Timezone: UTC+2.00