10-day forecast for Harco, IL: 44° to 77°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
77°
Best day: Sunday, October 25
65° · 1.06 in
Worst day: Saturday, October 31
Tap any day below to see morning, afternoon, evening and overnight.
Sat, 2475° / 46°0
Morning50°feels 49°
Afternoon74°feels 73°
Evening62°feels 60°
Overnight51°feels 49°
75 °
Harco, Saturday, 24 October
Mostly clear. High 75°, low 46°.
Pressure30.36 inHg
Wind4.4 mph SE
Humidity41%
Visibility6.2 mi
Dew point46°
Sun, 2577° / 52°0
Morning55°feels 53°
Afternoon77°feels 76°
Evening63°feels 62°
Overnight55°feels 53°
77 °
Harco, Sunday, 25 October
Overcast. High 77°, low 52°.
Pressure30.39 inHg
Wind2.8 mph SW
Humidity40%
Visibility6.2 mi
Dew point49°
Mon, 2675° / 55°0
Morning56°feels 55°
Afternoon75°feels 74°
Evening64°feels 63°
Overnight57°feels 56°
75 °
Harco, Monday, 26 October
Overcast. High 75°, low 55°.
Pressure30.33 inHg
Wind3.8 mph SW
Humidity39%
Visibility6.2 mi
Dew point47°
Tue, 2774° / 53°0
Morning59°feels 58°
Afternoon73°feels 72°
Evening66°feels 65°
Overnight57°feels 56°
74 °
Harco, Tuesday, 27 October
Overcast. High 74°, low 53°.
Pressure30.24 inHg
Wind5.4 mph E
Humidity38%
Visibility—
Dew point44°
Wed, 2876° / 55°0
Morning61°feels 60°
Afternoon75°feels 74°
Evening65°feels 64°
Overnight61°feels 59°
76 °
Harco, Wednesday, 28 October
Clear. High 76°, low 55°.
Pressure30.09 inHg
Wind10.9 mph S
Humidity34%
Visibility—
Dew point43°
Thu, 2977° / 56°0
Morning62°feels 60°
Afternoon74°feels 72°
Evening65°feels 63°
Overnight63°feels 61°
77 °
Harco, Thursday, 29 October
Overcast. High 77°, low 56°.
Pressure30.21 inHg
Wind13.2 mph S
Humidity32%
Visibility—
Dew point41°
Fri, 3068° / 59°0
Morning62°feels 60°
Afternoon67°feels 66°
Evening63°feels 63°
Overnight63°feels 62°
68 °
Harco, Friday, 30 October
Light rain. High 68°, low 59°.
Pressure30.09 inHg
Wind11.4 mph S
Humidity56%
Visibility—
Dew point50°
Sat, 3165° / 62°1.06
Morning63°feels 63°
Afternoon65°feels 65°
Evening64°feels 65°
Overnight63°feels 64°
65 °
Harco, Saturday, 31 October
Rain. High 65°, low 62°.
Pressure29.91 inHg
Wind13.7 mph S
Humidity94%
Visibility—
Dew point63°
Sun, 0162° / 51°0.04
Morning58°feels 57°
Afternoon59°feels 58°
Evening54°feels 52°
Overnight52°feels 50°
62 °
Harco, Sunday, 1 November
Light rain. High 62°, low 51°.
Pressure30.06 inHg
Wind13.6 mph W
Humidity68%
Visibility—
Dew point49°
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 Harco, IL 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.