10-day forecast · Herndon
Day-by-day outlook up to 14 days: highs, lows, precipitation totals, wind and UV. Planning further ahead? Open the 30-day outlook →
Sun · Today
Sunny
87°
62°
4%
⌄
Wind 9 mph NE
Gusts 20 mph
UV index 7 – High
Precip chance 4%
Sunrise 6:43 AM
Sunset 7:32 PM
Mon · Tomorrow
Sunny
82°
59°
6%
⌄
Wind 5 mph N
Gusts 11 mph
UV index 7 – High
Precip chance 6%
Sunrise 6:43 AM
Sunset 7:31 PM
Tuesday 8/9
Mostly cloudy
84°
62°
10%
⌄
Wind 7 mph SE
Gusts 15 mph
UV index 7 – High
Precip chance 10%
Sunrise 6:44 AM
Sunset 7:29 PM
Wednesday 9/9
Sunny
92°
63°
6%
⌄
Wind 11 mph S
Gusts 26 mph
UV index 8 – High
Precip chance 6%
Sunrise 6:45 AM
Sunset 7:28 PM
Thursday 10/9
Sunny
91°
68°
0.01 in
⌄
Wind 13 mph NW
Gusts 28 mph
UV index 8 – Very high
Precip chance 17% · 0.01 in
Sunrise 6:46 AM
Sunset 7:26 PM
Friday 11/9
Sunny
81°
67°
0.01 in
⌄
Wind 12 mph NW
Gusts 23 mph
UV index 7 – High
Precip chance 21% · 0.01 in
Sunrise 6:47 AM
Sunset 7:24 PM
Saturday 12/9
Sunny
86°
64°
6%
⌄
Wind 10 mph SE
Gusts 23 mph
UV index 7 – High
Precip chance 6%
Sunrise 6:48 AM
Sunset 7:23 PM
Sunday 13/9
Showers
84°
69°
0.11 in
⌄
Wind 11 mph S
Gusts 21 mph
UV index 7 – High
Precip chance 66% · 0.11 in
Sunrise 6:49 AM
Sunset 7:21 PM
Monday 14/9
Fog
94°
71°
0.07 in
⌄
Wind 6 mph S
Gusts 20 mph
UV index 8 – Very high
Precip chance 62% · 0.07 in
Sunrise 6:50 AM
Sunset 7:20 PM
Tuesday 15/9
Sunny
76°
59°
0.04 in
⌄
Wind 9 mph N
Gusts 13 mph
UV index 6 – High
Precip chance 36% · 0.04 in
Sunrise 6:51 AM
Sunset 7:18 PM
Wednesday 16/9
Sunny
76°
53°
3%
⌄
Wind 6 mph SE
Gusts 9 mph
UV index 6 – High
Precip chance 3%
Sunrise 6:51 AM
Sunset 7:16 PM
Thursday 17/9
Sunny
79°
56°
7%
⌄
Wind 9 mph S
Gusts 18 mph
UV index 6 – High
Precip chance 7%
Sunrise 6:52 AM
Sunset 7:15 PM
Friday 18/9
Mostly cloudy
74°
63°
12%
⌄
Wind 6 mph S
Gusts 16 mph
UV index 6 – High
Precip chance 12%
Sunrise 6:53 AM
Sunset 7:13 PM
Saturday 19/9
Showers
75°
66°
0.02 in
⌄
Wind 9 mph S
Gusts 14 mph
UV index 6 – High
Precip chance 49% · 0.02 in
Sunrise 6:54 AM
Sunset 7:12 PM
10-day outlook for Herndon
Over the next ten days Herndon peaks at 94° on Monday and bottoms out at 59° on Tuesday. Day-to-day swings stay modest — no big pattern change inside the period. Add it up and about 0.25 in of precipitation falls over the period, spread across 3 unsettled days, with Sunday the most likely (66%).