10-day forecast · San Juan
Day-by-day outlook up to 14 days: highs, lows, precipitation totals, wind and UV. Planning further ahead? Open the 30-day outlook →
Sat · Today
Sunny
38°
27°
6%
⌄
Wind 20 mph SE
Gusts 27 mph
UV index 9 – Very high
Precip chance 6%
Sunrise 7:14 AM
Sunset 7:48 PM
Sun · Tomorrow
Partly cloudy
37°
27°
0.00 in
⌄
Wind 19 mph SE
Gusts 27 mph
UV index 10 – Very high
Precip chance 17% · 0.00 in
Sunrise 7:14 AM
Sunset 7:47 PM
Monday 7/9
Sunny
39°
27°
5%
⌄
Wind 21 mph SE
Gusts 30 mph
UV index 10 – Very high
Precip chance 5%
Sunrise 7:15 AM
Sunset 7:46 PM
Tuesday 8/9
Partly cloudy
40°
27°
17%
⌄
Wind 20 mph SE
Gusts 23 mph
UV index 11 – Very high
Precip chance 17%
Sunrise 7:15 AM
Sunset 7:45 PM
Wednesday 9/9
Mostly cloudy
38°
28°
0.05 in
⌄
Wind 21 mph SE
Gusts 32 mph
UV index 8 – Very high
Precip chance 57% · 0.05 in
Sunrise 7:15 AM
Sunset 7:43 PM
Thursday 10/9
Partly cloudy
38°
27°
5%
⌄
Wind 21 mph SE
Gusts 24 mph
UV index 9 – Very high
Precip chance 5%
Sunrise 7:16 AM
Sunset 7:42 PM
Friday 11/9
Mostly cloudy
36°
27°
12%
⌄
Wind 20 mph SE
Gusts 31 mph
UV index 8 – Very high
Precip chance 12%
Sunrise 7:16 AM
Sunset 7:41 PM
Saturday 12/9
Mostly cloudy
35°
27°
0.00 in
⌄
Wind 18 mph SE
Gusts 26 mph
UV index 7 – High
Precip chance 22% · 0.00 in
Sunrise 7:17 AM
Sunset 7:40 PM
Sunday 13/9
Mostly cloudy
30°
27°
0.08 in
⌄
Wind 15 mph SE
Gusts 26 mph
UV index 7 – High
Precip chance 62% · 0.08 in
Sunrise 7:17 AM
Sunset 7:39 PM
Monday 14/9
Mostly cloudy
37°
27°
0.06 in
⌄
Wind 18 mph SE
Gusts 29 mph
UV index 9 – Very high
Precip chance 57% · 0.06 in
Sunrise 7:18 AM
Sunset 7:38 PM
Tuesday 15/9
Sunny
37°
27°
6%
⌄
Wind 18 mph E
Gusts 27 mph
UV index 9 – Very high
Precip chance 6%
Sunrise 7:18 AM
Sunset 7:37 PM
Wednesday 16/9
Sunny
35°
27°
0.30 in
⌄
Wind 17 mph NE
Gusts 23 mph
UV index 8 – Very high
Precip chance 60% · 0.30 in
Sunrise 7:18 AM
Sunset 7:36 PM
Thursday 17/9
Sunny
33°
25°
0.03 in
⌄
Wind 15 mph E
Gusts 24 mph
UV index 8 – Very high
Precip chance 36% · 0.03 in
Sunrise 7:19 AM
Sunset 7:35 PM
Friday 18/9
Sunny
36°
26°
4%
⌄
Wind 16 mph E
Gusts 27 mph
UV index 9 – Very high
Precip chance 4%
Sunrise 7:19 AM
Sunset 7:33 PM
10-day outlook for San Juan
Over the next ten days San Juan peaks at 40° on Tuesday and bottoms out at 27° on Monday. The back half cools off by roughly 8°, so the warmest days are the ones in front of you. Add it up and about 0.21 in of precipitation falls over the period, spread across 3 unsettled days, with Sunday the most likely (62%).