Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 8

Waning Crescent 1%

07:42

15:24

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

Sun - Rise: 07:10, Set: 16:20, Transit: 11:44. Moon - Rise: 07:42, Set: 15:24. Civil Dark: 16:56 - 06:34. Nautical Dark: 17:37 - 05:53. Astro Dark: 18:16 - 05:14

Total Clouds (% Sky Obscured)

88
90
68
65
60
66
63
68
66
65
41
34
29
44
51
52
54
80
75
80
80
80
75
70

Low Clouds (% Sky Obscured)

88
52
52
51
57
55
50
45
25
24
7
18
23
35
44
45
47
75
75
80
80
80
75
70

Medium Clouds (% Sky Obscured)

0
0
0
0
0
14
19
31
35
29
17
10
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 (%)

100
86
24
6
0
0
0
0
0
0
0
0
0
1
22
100
100
100
96
98
87
84
53
17

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
3
4
15
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
4
4
4
4
4
3
3
2
1
1
1
1
1
1
1
2
3
3
3
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
4
4
3
3
3
4
4
4
4
4
4
4
3
3
3
3
3
2
2
2
2
3
3

Relative Humidity (%)

79
75
70
66
63
66
73
77
79
82
84
83
85
85
86
86
88
88
88
88
89
89
89
83

Pressure (mb)

1021
1021
1021
1021
1021
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020
1020
1019
1019
1019
1019
1019

Ozone (du)

292
296
294
292
294
300
303
300
296
288
283
284
281
278
273
271
265
262
258
254
253
254
254
253

Monday 9

New Moon 0%

08:56

15:44

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

Sun - Rise: 07:12, Set: 16:19, Transit: 11:44. Moon - Rise: 08:56, Set: 15:44. Civil Dark: 16:55 - 06:35. Nautical Dark: 17:35 - 05:55. Astro Dark: 18:15 - 05:15

Total Clouds (% Sky Obscured)

65
57
44
34
37
31
40
76
72
90
90
92
100
100
94
84
92
100
94
100
99
95
100
100

Low Clouds (% Sky Obscured)

65
57
44
34
37
31
40
59
34
31
33
35
35
43
46
34
27
25
25
24
29
38
36
44

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
12
14
19
19

High Clouds (% Sky Obscured)

0
0
0
0
0
0
2
49
57
81
79
82
100
100
94
84
92
100
94
99
91
55
89
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 (%)

12
19
13
7
5
4
4
4
3
2
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
6
6
7
7
7
6
7
7
7
6
6
6
6
7
7
7
7
7
7
7
7
7
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
71
69
68
69
73
82
87
90
93
93
93
94
93
94
94
94
93
93
93
93
91
91
85

Pressure (mb)

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

Ozone (du)

253
251
251
251
250
249
247
244
242
238
239
238
238
238
241
240
240
243
244
244
244
244
244
244

Tuesday 10

Waxing Crescent 2%

10:04

16:12

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 07:13, Set: 16:17, Transit: 11:44. Moon - Rise: 10:04, Set: 16:12. Civil Dark: 16:53 - 06:37. Nautical Dark: 17:34 - 05:56. Astro Dark: 18:13 - 05:17

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)

47
51
57
94
89
91
97
100
100
100
100
100
100
100
98
85
88
94
89
96
97
99
100
100

Medium Clouds (% Sky Obscured)

20
26
86
100
100
100
100
98
95
95
91
98
96
98
100
100
94
99
100
100
99
99
97
96

High Clouds (% Sky Obscured)

100
100
96
82
100
100
94
100
100
84
70
73
100
100
100
100
100
100
100
100
83
65
53
62

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

6
12
23
35
52
50
24
26
30
10
11
26
37
49
71
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0.4
0.3
0
0
0
0
0
0
0
0
0.3
0.8
1
0.5
0.7
0.8
0.9
0.9
1.1
1.1

Wind Speed/Direction (mph)

9
10
11
10
10
10
11
11
10
10
9
9
9
9
9
9
9
10
10
10
11
10
10
10

Chance of Frost

Temperature (°C)

8
9
9
9
9
9
8
8
8
8
8
9
9
9
9
9
8
8
8
9
9
9
8
8

Feels Like (°C)

4
5
5
6
5
4
5
4
4
5
5
5
5
5
5
5
5
5
4
5
4
4
4
4

Dew Point (°C)

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

Relative Humidity (%)

78
72
64
66
68
69
71
74
75
77
77
78
80
84
87
90
91
93
91
90
88
90
90
91

Pressure (mb)

1012
1012
1011
1010
1009
1009
1008
1008
1008
1008
1007
1007
1007
1006
1006
1005
1005
1004
1004
1004
1003
1003
1003
1003

Ozone (du)

244
246
248
248
248
249
250
251
253
251
253
253
253
255
255
257
254
255
256
254
253
251
249
246

Wednesday 11

Waxing Crescent 5%

10:04

16:50

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 07:14, Set: 16:15, Transit: 11:44. Moon - Rise: 10:04, Set: 16:50. Civil Dark: 16:52 - 06:38. Nautical Dark: 17:33 - 05:57. Astro Dark: 18:12 - 05:17

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
98
90
75
70
76
78
100
100
100
100
100
98
97
95
90

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
98
93
84
59
50
48
56
89
90
91
92
94
86
78
70
70

Medium Clouds (% Sky Obscured)

93
88
90
95
98
92
82
64
61
57
47
42
35
35
35
40
40
55
60
65
62
64
57
54

High Clouds (% Sky Obscured)

66
70
59
45
47
53
58
61
66
79
68
67
65
70
70
70
70
67
68
61
41
20
0
1

ISS Passover

Visibility (miles)

4
6
7
6
7
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2

Precipitation Type

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

Precipitation Probability (%)

95
78
73
69
57
43
32
33
37
40
42
45
50
61
66
62
59
53
49
45
42
37
25
24

Precipitation Amount (mm)

0.7
0.4
0.4
0.4
0.3
0
0
0
0
0
0
0
0
0.3
0.4
0.3
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
10
9
9
9
9
8
8
9
10
9
9
9
9
8
8
8
9
9
9
10
11
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
91
91
91
91
91
90
90
85
84
85
90
91
93
91
90
82
73
75
78
77
82
78
74

Pressure (mb)

1004
1004
1004
1004
1004
1003
1004
1004
1004
1004
1005
1005
1005
1006
1006
1006
1006
1006
1006
1007
1007
1007
1008
1009

Ozone (du)

245
245
243
241
239
240
240
241
243
245
245
246
249
250
249
251
250
245
243
241
243
243
244
245

Thursday 12

Waxing Crescent 10%

11:01

17:39

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 OK
23 Bad
00 Bad
01 OK
02 Bad
03 Bad
04 Bad
05 OK
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 07:16, Set: 16:15, Transit: 11:44. Moon - Rise: 11:01, Set: 17:39. Civil Dark: 16:51 - 06:39. Nautical Dark: 17:32 - 05:58. Astro Dark: 18:11 - 05:19

Total Clouds (% Sky Obscured)

70
89
86
81
78
47
39
23
29
36
39
46
48
50
47
45
54
49
44
38
45
57
66
57

Low Clouds (% Sky Obscured)

50
83
83
80
78
47
39
23
29
36
39
46
48
48
47
45
53
45
41
37
42
39
35
25

Medium Clouds (% Sky Obscured)

50
41
24
12
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

1
1
1
0
0
0
0
0
0
0
0
2
4
6
9
14
24
18
10
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 (%)

2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2

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 (%)

22
11
12
14
5
5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
62
61
62
60
63
69
75
80
80
82
83
85
86
88
86
86
86
88
86
88
86
83
82

Pressure (mb)

1009
1009
1009
1009
1009
1010
1010
1011
1011
1011
1012
1012
1012
1012
1013
1013
1013
1013
1014
1014
1015
1015
1016
1017

Ozone (du)

247
250
249
248
247
248
246
244
246
247
248
250
252
255
256
259
261
263
264
265
266
266
267
267

Friday 13

Waxing Crescent 17%

11:45

18:40

10 Bad
11 Bad
12 Bad
13 OK
14 OK
15 OK
16 OK
17 OK
18 OK
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

Sun - Rise: 07:18, Set: 16:13, Transit: 11:45. Moon - Rise: 11:45, Set: 18:40. Civil Dark: 16:50 - 06:41. Nautical Dark: 17:31 - 06:00. Astro Dark: 18:10 - 05:20

Total Clouds (% Sky Obscured)

58
55
51
41
32
29
26
23
16
7
0
0
1
1
0
0
0
0
1
1
2
2
2
2

Low Clouds (% Sky Obscured)

17
13
9
8
7
5
4
4
6
4
0
0
0
0
0
0
0
0
1
1
2
2
2
2

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
1
1
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 (%)

2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
70
66
66
67
70
76
82
88
89
89
89
89
89
88
88
88
88
86
88
86
86
83
81

Pressure (mb)

1017
1017
1018
1018
1018
1018
1019
1020
1020
1021
1021
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1023
1024
1024

Ozone (du)

267
266
266
266
267
267
267
268
268
269
270
272
272
273
274
272
270
268
269
269
269
269
269
268

Saturday 14

Waxing Crescent 25%

12:18

19:48

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

Sun - Rise: 07:20, Set: 16:12, Transit: 11:45. Moon - Rise: 12:18, Set: 19:48. Civil Dark: 16:49 - 06:42. Nautical Dark: 17:30 - 06:01. Astro Dark: 18:09 - 05:22

Total Clouds (% Sky Obscured)

3
4
4
3
2
1
1
0
0
0
0
9
19
28
44
60
74
75
74
76

Low Clouds (% Sky Obscured)

3
4
3
3
2
1
1
0
0
0
0
0
0
0
5
9
14
23
31
40

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
10
17
25

High Clouds (% Sky Obscured)

1
2
2
1
0
0
0
0
0
0
0
9
18
28
37
49
61
47
29
8

ISS Passover

Visibility (miles)

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

Fog (%)

2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2

Precipitation Type

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

Precipitation Amount (mm)

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
5
4
4
4
4
4
4
4
4
4
4
3
4
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

0
1
2
7
7
7
7
7
7
3
2
3
2
2
2
0
1
-0
0
0

Dew Point (°C)

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

Relative Humidity (%)

77
74
70
69
66
66
71
75
80
80
80
82
82
82
80
83
85
86
86
86

Pressure (mb)

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

Ozone (du)

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

Forecast for Welwyn Garden City, Hertfordshire, United Kingdom (51.80,-0.21)

Generated: 08/11/26 10:31:08. Forecast: 08/11/26 to 14/11/26. Timezone: UTC+0.00