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 →
Sat · Today
Sunny
29°
20°
0.01 in
⌄
Wind 10 mph NW
Gusts 20 mph
UV index 6 – High
Precip chance 24% · 0.01 in
Sunrise 6:42 AM
Sunset 7:34 PM
Sun · Tomorrow
Partly cloudy
27°
17°
0.01 in
⌄
Wind 11 mph NE
Gusts 22 mph
UV index 6 – Moderate
Precip chance 22% · 0.01 in
Sunrise 6:43 AM
Sunset 7:32 PM
Monday 7/9
Sunny
28°
17°
8%
⌄
Wind 5 mph S
Gusts 15 mph
UV index 7 – High
Precip chance 8%
Sunrise 6:43 AM
Sunset 7:31 PM
Tuesday 8/9
Mostly cloudy
30°
16°
10%
⌄
Wind 9 mph S
Gusts 25 mph
UV index 7 – High
Precip chance 10%
Sunrise 6:44 AM
Sunset 7:29 PM
Wednesday 9/9
Sunny
34°
17°
4%
⌄
Wind 10 mph S
Gusts 30 mph
UV index 8 – Very high
Precip chance 4%
Sunrise 6:45 AM
Sunset 7:28 PM
Thursday 10/9
Mostly cloudy
31°
19°
9%
⌄
Wind 17 mph NW
Gusts 28 mph
UV index 7 – High
Precip chance 9%
Sunrise 6:46 AM
Sunset 7:26 PM
Friday 11/9
Mostly cloudy
26°
16°
9%
⌄
Wind 13 mph NW
Gusts 21 mph
UV index 7 – High
Precip chance 9%
Sunrise 6:47 AM
Sunset 7:24 PM
Saturday 12/9
Sunny
26°
16°
4%
⌄
Wind 10 mph N
Gusts 19 mph
UV index 7 – High
Precip chance 4%
Sunrise 6:48 AM
Sunset 7:23 PM
Sunday 13/9
Sunny
24°
10°
2%
⌄
Wind 7 mph NE
Gusts 16 mph
UV index 6 – High
Precip chance 2%
Sunrise 6:49 AM
Sunset 7:21 PM
Monday 14/9
Sunny
26°
12°
4%
⌄
Wind 7 mph SE
Gusts 15 mph
UV index 7 – High
Precip chance 4%
Sunrise 6:50 AM
Sunset 7:20 PM
Tuesday 15/9
Sunny
28°
14°
3%
⌄
Wind 6 mph SE
Gusts 14 mph
UV index 7 – High
Precip chance 3%
Sunrise 6:51 AM
Sunset 7:18 PM
Wednesday 16/9
Sunny
31°
15°
3%
⌄
Wind 8 mph S
Gusts 22 mph
UV index 8 – Very high
Precip chance 3%
Sunrise 6:51 AM
Sunset 7:16 PM
Thursday 17/9
Sunny
35°
18°
2%
⌄
Wind 8 mph S
Gusts 17 mph
UV index 8 – Very high
Precip chance 2%
Sunrise 6:52 AM
Sunset 7:15 PM
Friday 18/9
Mostly cloudy
31°
20°
0.07 in
⌄
Wind 8 mph NW
Gusts 20 mph
UV index 7 – High
Precip chance 61% · 0.07 in
Sunrise 6:53 AM
Sunset 7:13 PM
10-day outlook for Herndon
Over the next ten days Herndon peaks at 34° on Wednesday and bottoms out at 10° on Sunday. Day-to-day swings stay modest — no big pattern change inside the period. Rain totals come to essentially nothing across the ten days.