10-day forecast for Harlem, IL: 40° to 72°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
72°
Best day: Saturday, October 24
50° · 0.11 in
Worst day: Monday, October 26
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1964° / 40°0
Morning42°feels 40°
Afternoon63°feels 62°
Evening51°feels 49°
Overnight45°feels 42°
64 °
Harlem, Monday, 19 October
Overcast. High 64°, low 40°.
Pressure30.39 inHg
Wind3.9 mph S
Humidity61%
Visibility6.2 mi
Dew point46°
Tue, 2065° / 41°0
Morning43°feels 43°
Afternoon64°feels 63°
Evening53°feels 52°
Overnight45°feels 45°
65 °
Harlem, Tuesday, 20 October
Clear. High 65°, low 41°.
Pressure30.39 inHg
Wind4.7 mph SE
Humidity57%
Visibility6.2 mi
Dew point46°
Wed, 2167° / 43°0
Morning45°feels 43°
Afternoon67°feels 66°
Evening57°feels 56°
Overnight46°feels 45°
67 °
Harlem, Wednesday, 21 October
Clear. High 67°, low 43°.
Pressure30.30 inHg
Wind3.5 mph SW
Humidity58%
Visibility6.2 mi
Dew point49°
Thu, 2268° / 45°0
Morning50°feels 50°
Afternoon66°feels 65°
Evening58°feels 57°
Overnight49°feels 49°
68 °
Harlem, Thursday, 22 October
Mostly clear. High 68°, low 45°.
Pressure30.33 inHg
Wind2.7 mph E
Humidity62%
Visibility6.2 mi
Dew point51°
Fri, 2364° / 51°0
Morning54°feels 53°
Afternoon63°feels 61°
Evening56°feels 55°
Overnight53°feels 52°
64 °
Harlem, Friday, 23 October
Clear. High 64°, low 51°.
Pressure30.36 inHg
Wind9.6 mph SE
Humidity57%
Visibility—
Dew point46°
Sat, 2472° / 53°0.01
Morning60°feels 58°
Afternoon68°feels 67°
Evening65°feels 64°
Overnight60°feels 60°
72 °
Harlem, Saturday, 24 October
Light rain. High 72°, low 53°.
Pressure30.21 inHg
Wind18.3 mph S
Humidity48%
Visibility—
Dew point47°
Sun, 2556° / 47°0.07
Morning50°feels 46°
Afternoon55°feels 52°
Evening49°feels 47°
Overnight47°feels 45°
56 °
Harlem, Sunday, 25 October
Light rain. High 56°, low 47°.
Pressure30.45 inHg
Wind12 mph NW
Humidity37%
Visibility—
Dew point29°
Mon, 2650° / 43°0.11
Morning44°feels 41°
Afternoon48°feels 44°
Evening47°feels 46°
Overnight47°feels 46°
50 °
Harlem, Monday, 26 October
Light rain. High 50°, low 43°.
Pressure30.33 inHg
Wind7.5 mph S
Humidity75%
Visibility—
Dew point39°
Tue, 2761° / 48°0.01
Morning52°feels 49°
Afternoon60°feels 59°
Evening56°feels 55°
Overnight53°feels 52°
61 °
Harlem, Tuesday, 27 October
Light rain. High 61°, low 48°.
Pressure30.27 inHg
Wind9.7 mph SE
Humidity72%
Visibility—
Dew point50°
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 Harlem, 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.