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
103°
81°
7%
⌄
Wind 21 mph SE
Gusts 32 mph
UV index 9 – Very high
Precip chance 7%
Sunrise 7:14 AM
Sunset 7:48 PM
Sun · Tomorrow
Partly cloudy
101°
80°
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
103°
80°
5%
⌄
Wind 21 mph SE
Gusts 32 mph
UV index 10 – Very high
Precip chance 5%
Sunrise 7:15 AM
Sunset 7:46 PM
Tuesday 8/9
Partly cloudy
103°
81°
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
91°
82°
0.04 in
⌄
Wind 17 mph S
Gusts 20 mph
UV index 8 – Very high
Precip chance 57% · 0.04 in
Sunrise 7:15 AM
Sunset 7:43 PM
Thursday 10/9
Mostly cloudy
101°
80°
0.02 in
⌄
Wind 19 mph SE
Gusts 30 mph
UV index 9 – Very high
Precip chance 36% · 0.02 in
Sunrise 7:16 AM
Sunset 7:42 PM
Friday 11/9
Mostly cloudy
100°
81°
10%
⌄
Wind 19 mph SE
Gusts 29 mph
UV index 9 – Very high
Precip chance 10%
Sunrise 7:16 AM
Sunset 7:41 PM
Saturday 12/9
Mostly cloudy
97°
81°
12%
⌄
Wind 19 mph SE
Gusts 28 mph
UV index 8 – Very high
Precip chance 12%
Sunrise 7:17 AM
Sunset 7:40 PM
Sunday 13/9
Partly cloudy
98°
82°
17%
⌄
Wind 20 mph SE
Gusts 28 mph
UV index 8 – Very high
Precip chance 17%
Sunrise 7:17 AM
Sunset 7:39 PM
Monday 14/9
Mostly cloudy
98°
82°
0.06 in
⌄
Wind 18 mph SE
Gusts 26 mph
UV index 9 – Very high
Precip chance 57% · 0.06 in
Sunrise 7:18 AM
Sunset 7:38 PM
Tuesday 15/9
Sunny
98°
80°
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
94°
80°
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
92°
77°
0.03 in
⌄
Wind 15 mph E
Gusts 26 mph
UV index 8 – Very high
Precip chance 36% · 0.03 in
Sunrise 7:19 AM
Sunset 7:35 PM
Friday 18/9
Sunny
97°
78°
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 103° on Tuesday and bottoms out at 80° on Thursday. Day-to-day swings stay modest — no big pattern change inside the period. Add it up and about 0.14 in of precipitation falls over the period, spread across 3 unsettled days, with Wednesday the most likely (57%).