Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 6

Waning Gibbous 84%

00:26

08:10

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

Sun - Rise: 06:16, Set: 19:16, Transit: 12:46. Moon - Rise: 00:26, Set: 08:10. Civil Dark: 19:45 - 05:48. Nautical Dark: 20:19 - 05:13. Astro Dark: 20:54 - 04:38

Total Clouds (% Sky Obscured)

100
100
59
38
9
3
3
3
18
73
82
81
99
85
68
77
44
21
6
0
0
1
25
88

Low Clouds (% Sky Obscured)

19
16
2
0
9
1
0
0
18
64
73
69
38
40
43
27
6
11
6
0
0
0
0
4

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
62
37
2
31
0
0
0
0
0
0
18
88

High Clouds (% Sky Obscured)

100
9
10
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 (%)

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
12
12
14
14
13
13
14
13
13
12
13
13
13
14
14
12
11
9
8
7
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
65
65
60
61
63
63
60
52
45
41
37
35
33
33
33
33
37
41
42
45
46
50
49

Pressure (mb)

1009
1009
1009
1009
1010
1011
1012
1013
1013
1013
1013
1013
1012
1013
1012
1013
1013
1014
1015
1016
1018
1018
1018
1018

Ozone (du)

335
340
345
343
345
351
359
363
360
359
355
351
354
358
363
368
377
381
383
389
391
389
390
391

Tuesday 7

Waning Gibbous 76%

No Rise

08:52

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 OK
20 OK
21 Good
22 Good
23 Good
00 Good

Sun - Rise: 06:15, Set: 19:17, Transit: 12:46. Moon - Rise: No Rise, Set: 08:52. Civil Dark: 19:46 - 05:46. Nautical Dark: 20:20 - 05:12. Astro Dark: 20:56 - 04:36

Total Clouds (% Sky Obscured)

100
100
98
100
100
100
100
95
93
97
78
100
99
98
95
94
51
52
26
17
0
0
0
0

Low Clouds (% Sky Obscured)

10
35
74
82
89
100
98
85
86
93
78
100
97
95
88
70
51
52
25
17
0
0
0
0

Medium Clouds (% Sky Obscured)

100
100
42
99
100
100
100
92
76
28
25
15
33
97
81
47
35
32
17
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 (%)

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
Very Light Rain
Snow
Snow
None
Snow
Sleet
None
None
Light Rain
None
None
None
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

7
3
4
14
25
55
64
45
38
37
44
35
51
59
42
27
27
36
3
1
1
1
0
0

Precipitation Amount (mm)

0
0
0
0
0
0.2
0.6
0.2
0
0.1
0.2
0
0
0.4
0
0
0
0.2
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
5
5
5
4
4
5
6
7
8
8
8
10
11
12
12
14
12
12
11
11
11
11
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-6
-6
-6
-6
-6
-6
-7
-8
-9
-9
-10
-12
-13
-14
-12
-11
-7
-11
-10
-11
-11
-11
-12
-13

Relative Humidity (%)

48
49
50
52
52
52
52
49
44
38
35
30
28
25
32
35
44
33
35
33
34
34
34
33

Pressure (mb)

1018
1018
1019
1019
1019
1019
1020
1021
1021
1021
1021
1021
1021
1021
1022
1022
1024
1025
1026
1028
1030
1031
1032
1033

Ozone (du)

394
390
389
388
385
383
382
382
383
383
385
386
389
392
393
395
401
406
408
408
406
406
402
403

Wednesday 8

Waning Gibbous 67%

01:21

09:43

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

Sun - Rise: 06:13, Set: 19:18, Transit: 12:46. Moon - Rise: 01:21, Set: 09:43. Civil Dark: 19:47 - 05:44. Nautical Dark: 20:21 - 05:10. Astro Dark: 20:57 - 04:34

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
3
0
0
0
0
0
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
3
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
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 (%)

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-14
-15
-15
-15
-15
-16
-16
-16
-16
-16
-15
-15
-15
-14
-13
-12
-11
-10
-8
-7
-6
-6
-5
-5

Relative Humidity (%)

32
32
32
33
32
32
31
30
28
27
27
25
24
24
24
25
29
32
43
50
55
58
61
64

Pressure (mb)

1033
1034
1035
1035
1036
1037
1038
1039
1039
1040
1040
1039
1039
1039
1038
1038
1037
1038
1038
1039
1040
1040
1040
1040

Ozone (du)

407
404
402
401
401
397
394
392
386
382
377
375
373
374
374
376
379
378
376
376
374
378
376
375

Thursday 9

Waning Gibbous 58%

02:09

10:41

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

Sun - Rise: 06:11, Set: 19:19, Transit: 12:45. Moon - Rise: 02:09, Set: 10:41. Civil Dark: 19:48 - 05:42. Nautical Dark: 20:23 - 05:08. Astro Dark: 20:59 - 04:32

Total Clouds (% Sky Obscured)

0
0
0
0
3
3
3
11
9
4
3
3
1
4
6
8
7
8
23
12
40
46
52
57

Low Clouds (% Sky Obscured)

0
0
0
0
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
9
18
28
34
42

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
3
11
9
3
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
1
2
3
2
1
0
3
6
8
7
4
1
1
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)

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

Chance of Frost

Temperature (°C)

1
1
1
1
1
1
1
2
4
6
8
10
11
12
12
11
11
9
7
6
5
4
3
3

Feels Like (°C)

-2
-2
-2
-2
-2
-2
-2
-1
-1
2
5
7
8
8
8
7
6
6
4
1
2
0
-1
-1

Dew Point (°C)

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

Relative Humidity (%)

65
67
69
70
71
71
71
63
52
43
37
33
32
30
31
34
37
42
49
62
72
76
80
83

Pressure (mb)

1040
1040
1040
1040
1040
1040
1041
1041
1041
1040
1040
1039
1038
1038
1037
1037
1037
1037
1037
1037
1037
1037
1037
1037

Ozone (du)

372
376
375
378
381
376
373
370
364
364
363
360
359
358
355
355
353
355
356
354
353
354
352
351

Friday 10

Third Quarter 48%

02:48

11:44

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

Sun - Rise: 06:10, Set: 19:21, Transit: 12:45. Moon - Rise: 02:48, Set: 11:44. Civil Dark: 19:49 - 05:41. Nautical Dark: 20:24 - 05:06. Astro Dark: 21:00 - 04:30

Total Clouds (% Sky Obscured)

59
67
71
80
73
68
67
31
30
22
12
10
15
29
34
27
32
41
47
57
64
74
82
90

Low Clouds (% Sky Obscured)

47
55
61
71
64
59
51
31
30
22
12
10
13
12
24
27
32
41
47
57
64
74
77
69

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
29
34
27
32
19
15
11
2
3
24
44

High Clouds (% Sky Obscured)

0
0
0
0
3
11
14
10
11
12
8
4
1
11
10
9
19
29
39
49
60
70
79
88

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
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
9
14
25
42
52

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
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

3
3
3
3
3
4
4
5
8
10
12
14
15
17
18
18
18
16
15
13
12
12
11
10

Feels Like (°C)

-1
0
0
-0
0
1
2
2
5
8
10
12
14
15
16
15
16
16
16
17
9
10
9
9

Dew Point (°C)

1
2
2
2
2
3
3
2
3
4
4
4
3
4
5
5
5
6
7
8
7
7
7
6

Relative Humidity (%)

86
88
89
93
93
93
91
82
74
65
56
49
44
41
42
42
42
49
57
68
70
72
76
76

Pressure (mb)

1036
1035
1035
1035
1034
1034
1034
1034
1034
1033
1033
1031
1030
1029
1025
1025
1025
1025
1025
1026
1026
1025
1025
1025

Ozone (du)

349
350
347
345
345
345
346
347
345
342
344
342
342
345
345
346
346
344
341
339
342
346
349
348

Saturday 11

Waning Crescent 38%

03:21

12:51

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

Sun - Rise: 06:08, Set: 19:22, Transit: 12:45. Moon - Rise: 03:21, Set: 12:51. Civil Dark: 19:51 - 05:39. Nautical Dark: 20:25 - 05:04. Astro Dark: 21:02 - 04:28

Total Clouds (% Sky Obscured)

98
95
93
92
80
70
75
68
70
63
55
47
36
39
48
63
67
73
82
94
97
97
97
97

Low Clouds (% Sky Obscured)

57
70
79
84
80
70
75
68
70
63
55
47
36
39
47
36
31
28
29
49
73
95
65
33

Medium Clouds (% Sky Obscured)

64
58
49
47
37
45
40
28
13
0
0
0
0
0
0
0
12
23
35
57
78
97
97
94

High Clouds (% Sky Obscured)

97
93
93
92
67
33
0
0
0
0
0
0
0
0
0
0
4
13
35
35
40
45
70
85

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

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

Precipitation Probability (%)

60
59
58
55
72
81
70
50
32
15
13
12
12
11
7
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

10
10
10
10
9
9
9
9
11
12
14
16
17
19
19
19
18
16
15
13
13
14
14
15

Feels Like (°C)

8
9
7
7
8
7
6
5
8
9
8
10
11
11
17
16
15
14
14
13
10
12
13
14

Dew Point (°C)

6
6
6
6
6
6
5
5
4
4
4
4
4
3
4
4
4
3
4
5
6
7
9
10

Relative Humidity (%)

77
77
78
80
81
77
76
73
64
57
49
45
40
36
36
36
38
42
49
56
60
64
68
70

Pressure (mb)

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

Ozone (du)

347
346
346
346
346
346
347
347
346
345
344
343
343
342
341
340
339
338
338
337
340
343
345
346

Sunday 12

Waning Crescent 28%

03:48

14:00

Sun - Rise: 06:06, Set: 19:23, Transit: 12:45. Moon - Rise: 03:48, Set: 14:00. Civil Dark: 19:52 - 05:37. Nautical Dark: 20:27 - 05:02. Astro Dark: 21:03 - 04:26

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Brookline, Norfolk, United States of America (42.33,-71.12)

Generated: 06/04/26 01:52:18. Forecast: 06/04/26 to 12/04/26. Timezone: UTC-4.00