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 →
Fri · Today
Mostly cloudy
102°
82°
7%
⌄
Wind 19 mph SE
Gusts 30 mph
UV index 10 – Very high
Precip chance 7%
Sunrise 7:13 AM
Sunset 7:49 PM
Sat · Tomorrow
Partly cloudy
101°
81°
6%
⌄
Wind 19 mph SE
Gusts 31 mph
UV index 9 – Very high
Precip chance 6%
Sunrise 7:14 AM
Sunset 7:48 PM
Sunday 6/9
Mostly cloudy
102°
81°
10%
⌄
Wind 21 mph SE
Gusts 30 mph
UV index 10 – Very high
Precip chance 10%
Sunrise 7:14 AM
Sunset 7:47 PM
Monday 7/9
Sunny
103°
81°
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
Thunderstorms
101°
82°
8%
⌄
Wind 21 mph SE
Gusts 30 mph
UV index 11 – Very high
Precip chance 8%
Sunrise 7:15 AM
Sunset 7:45 PM
Wednesday 9/9
Thunderstorms
100°
82°
0.05 in
⌄
Wind 22 mph SE
Gusts 29 mph
UV index 9 – Very high
Precip chance 57% · 0.05 in
Sunrise 7:15 AM
Sunset 7:43 PM
Thursday 10/9
Thunderstorms
98°
77°
0.47 in
⌄
Wind 23 mph E
Gusts 36 mph
UV index 9 – Very high
Precip chance 75% · 0.47 in
Sunrise 7:16 AM
Sunset 7:42 PM
Friday 11/9
Showers
99°
80°
0.17 in
⌄
Wind 16 mph SE
Gusts 24 mph
UV index 9 – Very high
Precip chance 64% · 0.17 in
Sunrise 7:16 AM
Sunset 7:41 PM
Saturday 12/9
Mostly cloudy
101°
81°
0.02 in
⌄
Wind 21 mph SE
Gusts 27 mph
UV index 9 – Very high
Precip chance 36% · 0.02 in
Sunrise 7:17 AM
Sunset 7:40 PM
Sunday 13/9
Sunny
101°
80°
3%
⌄
Wind 20 mph E
Gusts 29 mph
UV index 9 – Very high
Precip chance 3%
Sunrise 7:17 AM
Sunset 7:39 PM
Monday 14/9
Sunny
96°
81°
17%
⌄
Wind 19 mph E
Gusts 28 mph
UV index 9 – Very high
Precip chance 17%
Sunrise 7:18 AM
Sunset 7:38 PM
Tuesday 15/9
Sunny
97°
81°
8%
⌄
Wind 20 mph E
Gusts 26 mph
UV index 9 – Very high
Precip chance 8%
Sunrise 7:18 AM
Sunset 7:37 PM
Wednesday 16/9
Sunny
100°
80°
7%
⌄
Wind 19 mph E
Gusts 22 mph
UV index 8 – Very high
Precip chance 7%
Sunrise 7:18 AM
Sunset 7:36 PM
Thursday 17/9
Sunny
100°
80°
4%
⌄
Wind 18 mph E
Gusts 19 mph
UV index 9 – Very high
Precip chance 4%
Sunrise 7:19 AM
Sunset 7:35 PM
10-day outlook for San Juan
Over the next ten days San Juan peaks at 103° on Monday and bottoms out at 77° on Thursday. Day-to-day swings stay modest — no big pattern change inside the period. Add it up and about 0.71 in of precipitation falls over the period, spread across 4 unsettled days, with Thursday the most likely (75%).