Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 2

Waning Gibbous 91%

23:02

06:53

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

Sun - Rise: 04:47, Set: 21:22, Transit: 13:05. Moon - Rise: 23:02, Set: 06:53. Civil Dark: 22:10 - 04:00. Nautical Dark: 23:23 - 02:47. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

43
59
68
91
71
45
21
10
17
8
16
0
4
0
0
0
0
0
0
0
0
1
5
12

Low Clouds (% Sky Obscured)

43
59
68
89
71
45
21
9
17
8
16
0
4
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

43
15
9
2
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
2
0
1
2
2
0
2
2
0
2
0
0
0
0
0
0
0
0
0
0
1
5
9

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
9
12
10
6
1
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
12
12
13
13
15
16
16
15
14
14
14
14
14
14
13
12
10
8
9
8
7
6
6

Chance of Frost

Temperature (°C)

16
16
17
17
19
20
21
22
23
23
24
24
25
24
23
22
21
19
17
16
15
14
13
13

Feels Like (°C)

12
13
14
15
16
17
18
19
20
21
21
21
21
21
20
19
19
17
16
14
14
14
13
12

Dew Point (°C)

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

Relative Humidity (%)

85
85
87
88
85
76
53
43
40
36
34
33
33
34
36
39
46
52
60
65
70
76
80
81

Pressure (mb)

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

Ozone (du)

311
310
311
310
312
312
312
313
315
315
317
321
327
329
334
340
343
344
340
340
340
338
338
339

Friday 3

Waning Gibbous 89%

23:16

08:09

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 OK
20 Bad
21 OK
22 OK
23 OK
00 OK
01 Good
02 Good
03 Good

Sun - Rise: 04:48, Set: 21:22, Transit: 13:05. Moon - Rise: 23:16, Set: 08:09. Civil Dark: 22:09 - 04:00. Nautical Dark: 23:22 - 02:49. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

60
72
96
99
100
87
99
92
96
88
99
77
97
100
67
40
52
28
32
19
19
14
7
8

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
20
33
35
32
28
4
20
4
2
5
10
1
8
2
3
11
5
6

Medium Clouds (% Sky Obscured)

0
0
0
0
2
6
17
22
30
22
28
37
48
33
28
28
33
24
18
18
19
9
4
7

High Clouds (% Sky Obscured)

45
53
96
97
100
87
98
91
93
86
98
62
93
99
42
6
2
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 (%)

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)

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

Chance of Frost

Temperature (°C)

12
12
12
14
16
18
20
21
22
23
24
25
25
25
25
24
23
22
20
19
18
17
16
15

Feels Like (°C)

12
11
11
12
14
16
17
19
19
20
21
22
22
22
22
23
23
20
19
17
17
16
17
16

Dew Point (°C)

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

Relative Humidity (%)

84
86
83
73
66
56
49
47
42
39
36
34
33
33
33
34
42
49
52
54
57
61
69
79

Pressure (mb)

1028
1028
1029
1029
1029
1029
1029
1029
1029
1028
1028
1028
1027
1027
1027
1027
1027
1027
1028
1028
1028
1028
1028
1028

Ozone (du)

339
335
334
330
327
326
326
326
327
328
328
328
328
328
328
330
332
335
336
335
333
335
335
333

Saturday 4

Waning Gibbous 85%

23:28

09:25

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

Sun - Rise: 04:49, Set: 21:21, Transit: 13:05. Moon - Rise: 23:28, Set: 09:25. Civil Dark: 22:08 - 04:01. Nautical Dark: 23:21 - 02:50. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

13
0
0
3
11
21
36
26
37
20
26
31
79
65
52
54
95
98
69
51
100
90
62
54

Low Clouds (% Sky Obscured)

12
0
0
3
11
21
36
26
37
20
26
20
10
42
16
22
33
6
0
0
0
4
9
13

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
4
17
23
4
0
2
2
11
7
25
45
40
27
4

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
10
45
34
42
38
88
95
65
23
85
80
24
23

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
5
7
8
9
10
11
11
12
14
15
15
16
17
16
15
14
12
11
11
10
10
10

Chance of Frost

Temperature (°C)

15
14
15
16
18
20
22
23
25
26
27
27
28
28
27
26
24
23
21
19
18
18
17
16

Feels Like (°C)

15
15
15
16
18
20
21
22
24
25
25
25
25
24
22
22
21
19
18
17
16
16
15
15

Dew Point (°C)

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

Relative Humidity (%)

84
84
79
67
60
55
51
46
44
40
37
36
35
36
39
43
47
54
62
70
77
78
81
86

Pressure (mb)

1028
1028
1028
1028
1028
1027
1027
1027
1026
1025
1025
1024
1024
1024
1023
1023
1024
1024
1025
1025
1025
1025
1024
1024

Ozone (du)

331
331
330
331
331
329
330
329
328
327
328
327
327
330
333
333
329
327
329
330
329
330
328
329

Sunday 5

Waning Gibbous 77%

23:39

10:40

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

Sun - Rise: 04:49, Set: 21:21, Transit: 13:05. Moon - Rise: 23:39, Set: 10:40. Civil Dark: 22:08 - 04:02. Nautical Dark: 23:20 - 02:52. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

66
47
37
61
78
83
61
48
28
67
85
75
74
78
65
67
24
16
29
47
62
82
87
100

Low Clouds (% Sky Obscured)

16
19
21
38
57
64
61
48
28
63
67
59
51
43
21
41
7
7
4
2
0
0
0
0

Medium Clouds (% Sky Obscured)

25
18
6
28
36
45
3
3
6
3
0
0
0
0
2
0
0
0
12
24
34
40
43
53

High Clouds (% Sky Obscured)

27
9
8
4
5
0
1
0
0
0
0
0
14
28
44
31
18
7
23
43
62
81
87
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
1
0
1
3
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)

9
8
8
9
10
10
11
11
11
11
12
11
11
11
10
11
9
8
9
7
6
5
5
6

Chance of Frost

Temperature (°C)

16
16
16
17
18
19
21
22
24
25
26
26
27
27
26
26
25
23
21
20
19
18
17
16

Feels Like (°C)

14
14
15
16
16
17
18
20
22
23
23
23
24
23
24
24
23
23
21
21
20
19
17
16

Dew Point (°C)

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

Relative Humidity (%)

89
92
89
81
67
60
56
51
44
40
37
41
39
39
41
43
47
56
63
71
75
79
82
87

Pressure (mb)

1024
1024
1024
1025
1025
1025
1025
1024
1024
1023
1023
1023
1022
1022
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

329
327
326
325
325
325
327
328
328
329
330
330
330
329
327
326
328
328
327
328
328
326
328
326

Monday 6

Waning Gibbous 67%

23:51

11:56

04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 OK
11 OK
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

Sun - Rise: 04:50, Set: 21:20, Transit: 13:05. Moon - Rise: 23:51, Set: 11:56. Civil Dark: 22:07 - 04:04. Nautical Dark: 23:18 - 02:54. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
89
79
70
36
48
68
94
92
90
93
96
98
82
66
49
59
68
77
83
89
86

Low Clouds (% Sky Obscured)

5
10
15
16
18
20
32
39
48
37
30
21
23
21
18
14
11
8
8
11
14
13
16
18

Medium Clouds (% Sky Obscured)

50
53
53
61
39
28
31
39
40
39
40
35
33
31
29
14
14
14
10
6
0
4
8
11

High Clouds (% Sky Obscured)

99
99
100
81
71
65
1
4
21
67
65
59
70
82
98
76
52
27
34
44
59
72
73
76

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

Chance of Frost

Temperature (°C)

16
16
16
17
18
20
21
23
24
25
26
27
27
27
27
26
24
22
21
20
19
18
17
17

Feels Like (°C)

15
15
16
16
18
19
20
23
23
24
23
23
24
24
23
22
22
22
22
22
21
20
16
17

Dew Point (°C)

15
15
15
14
13
13
12
11
10
9
8
7
6
6
5
6
7
8
9
9
10
10
11
12

Relative Humidity (%)

92
93
89
81
72
64
55
47
41
35
31
28
26
26
25
27
33
39
46
50
54
58
64
70

Pressure (mb)

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

Ozone (du)

326
326
328
331
333
336
333
330
327
328
328
327
327
327
327
326
326
326
326
326
325
325
324
322

Tuesday 7

Third Quarter 57%

00:03

13:15

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 OK
22 OK
23 Good
00 Good
01 Good
02 Good
03 Good

Sun - Rise: 04:51, Set: 21:19, Transit: 13:05. Moon - Rise: 00:03, Set: 13:15. Civil Dark: 22:06 - 04:05. Nautical Dark: 23:17 - 02:56. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

84
87
85
83
84
83
87
91
94
97
98
100
89
80
75
62
49
36
29
18
7
9
12
14

Low Clouds (% Sky Obscured)

25
30
35
34
28
23
18
18
14
13
13
12
10
8
10
5
3
0
0
0
0
1
2
3

Medium Clouds (% Sky Obscured)

12
13
14
16
18
19
14
10
7
6
6
6
4
2
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

64
52
42
36
32
27
45
63
83
92
96
99
85
74
65
60
49
36
29
18
5
5
4
4

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

Chance of Frost

Temperature (°C)

17
17
17
18
19
20
21
22
24
25
25
26
26
26
25
25
24
22
21
20
18
17
17
16

Feels Like (°C)

17
16
15
14
17
17
16
16
17
17
24
22
21
22
22
23
21
22
22
21
21
20
15
15

Dew Point (°C)

12
12
11
10
10
8
7
5
3
0
-1
-1
-1
0
0
1
3
4
5
6
6
7
7
7

Relative Humidity (%)

75
71
65
61
54
45
40
31
25
19
18
18
17
18
19
20
24
29
36
39
44
50
52
56

Pressure (mb)

1021
1021
1021
1021
1021
1022
1022
1022
1021
1021
1021
1021
1021
1021
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

321
319
318
317
316
316
316
316
315
315
314
314
314
314
314
313
313
314
314
314
314
315
314
314

Wednesday 8

Waning Crescent 45%

00:18

14:37

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

Sun - Rise: 04:52, Set: 21:19, Transit: 13:06. Moon - Rise: 00:18, Set: 14:37. Civil Dark: 22:05 - 04:06. Nautical Dark: 23:15 - 02:57. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

11
7
2
2
2
2
26
48
70
72
64
66
59
47
41
31
25
24
16
13
9

Low Clouds (% Sky Obscured)

3
1
0
0
0
0
5
10
18
8
4
0
3
5
8
7
9
10
9
8
6

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
9
18
27
24
18
16
13
11
8
10
15
17
16
13
9

High Clouds (% Sky Obscured)

4
4
2
2
2
2
9
14
21
38
45
52
40
29
23
20
14
11
6
4
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

Fog (%)

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

Precipitation Probability (%)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
17
18
19
21
23
25
27
28
29
30
31
31
31
31
30
28
26
25
24
23

Feels Like (°C)

16
15
15
15
20
21
22
23
24
24
31
31
30
30
30
30
30
30
30
29
28

Dew Point (°C)

8
8
8
8
9
8
8
7
6
4
4
3
2
2
2
2
4
5
7
6
6

Relative Humidity (%)

58
56
53
51
45
38
33
28
23
20
18
16
15
15
16
16
20
25
32
32
33

Pressure (mb)

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

Ozone (du)

314
314
315
315
316
316
316
317
318
319
320
321
322
323
324
326
324
323
322
323
323

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

Generated: 02/07/26 04:04:20. Forecast: 02/07/26 to 08/07/26. Timezone: UTC+1.00