10-day forecast for Herndon, IA: 41° to 79°, with precipitation expected on 6 days. The table below breaks each day into morning, afternoon, evening and overnight.
79°
Best day: Saturday, October 24
61° · 0.46 in
Worst day: Saturday, October 31
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 2573° / 50°0
Morning51°feels 50°
Afternoon70°feels 70°
Evening60°feels 59°
Overnight55°feels 55°
73 °
Herndon, Sunday, 25 October
Overcast. High 73°, low 50°.
Pressure30.36 inHg
Wind2.9 mph NE
Humidity69%
Visibility6.2 mi
Dew point53°
Mon, 2669° / 48°0.02
Morning50°feels 49°
Afternoon66°feels 65°
Evening65°feels 64°
Overnight52°feels 51°
69 °
Herndon, Monday, 26 October
Light rain. High 69°, low 48°.
Pressure30.27 inHg
Wind7 mph SE
Humidity68%
Visibility6.2 mi
Dew point53°
Tue, 2769° / 56°0.04
Morning56°feels 55°
Afternoon69°feels 68°
Evening63°feels 62°
Overnight62°feels 61°
69 °
Herndon, Tuesday, 27 October
Light rain. High 69°, low 56°.
Pressure30.09 inHg
Wind9 mph S
Humidity58%
Visibility6.2 mi
Dew point51°
Wed, 2868° / 57°0.09
Morning59°feels 58°
Afternoon67°feels 66°
Evening60°feels 60°
Overnight61°feels 60°
68 °
Herndon, Wednesday, 28 October
Light rain. High 68°, low 57°.
Pressure30.09 inHg
Wind3.7 mph W
Humidity65%
Visibility6.2 mi
Dew point52°
Thu, 2966° / 53°0.19
Morning56°feels 55°
Afternoon63°feels 61°
Evening58°feels 56°
Overnight57°feels 56°
66 °
Herndon, Thursday, 29 October
Rain. High 66°, low 53°.
Pressure30.21 inHg
Wind9.1 mph N
Humidity43%
Visibility—
Dew point40°
Fri, 3069° / 55°0.37
Morning59°feels 59°
Afternoon68°feels 67°
Evening63°feels 63°
Overnight60°feels 60°
69 °
Herndon, Friday, 30 October
Light rain. High 69°, low 55°.
Pressure30.00 inHg
Wind15.9 mph S
Humidity69%
Visibility—
Dew point56°
Sat, 3161° / 58°0.46
Morning59°feels 58°
Afternoon60°feels 60°
Evening58°feels 58°
Overnight59°feels 59°
61 °
Herndon, Saturday, 31 October
Rain. High 61°, low 58°.
Pressure29.83 inHg
Wind17.7 mph S
Humidity80%
Visibility—
Dew point54°
Sun, 0161° / 45°0.14
Morning57°feels 57°
Afternoon54°feels 52°
Evening46°feels 39°
Overnight48°feels 41°
61 °
Herndon, Sunday, 1 November
Light rain. High 61°, low 45°.
Pressure29.77 inHg
Wind21.8 mph NW
Humidity82%
Visibility—
Dew point50°
Mon, 0250° / 41°0.02
Morning43°feels 33°
Afternoon47°feels 39°
Evening49°feels 42°
Overnight48°feels 40°
50 °
Herndon, Monday, 2 November
Light rain. High 50°, low 41°.
Pressure29.94 inHg
Wind27.1 mph NW
Humidity72%
Visibility—
Dew point38°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Herndon, IA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.