10-day forecast for Marengo, IL: 41° to 71°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
71°
Best day: Sunday, October 25
63° · 1.66 in
Worst day: Thursday, October 29
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 2571° / 50°0
Morning53°feels 52°
Afternoon70°feels 70°
Evening58°feels 57°
Overnight51°feels 50°
71 °
Marengo, Sunday, 25 October
Overcast. High 71°, low 50°.
Pressure30.39 inHg
Wind5.7 mph SW
Humidity57%
Visibility6.2 mi
Dew point51°
Mon, 2665° / 49°0
Morning51°feels 51°
Afternoon65°feels 64°
Evening51°feels 50°
Overnight52°feels 51°
65 °
Marengo, Monday, 26 October
Overcast. High 65°, low 49°.
Pressure30.36 inHg
Wind6.6 mph E
Humidity70%
Visibility6.2 mi
Dew point52°
Tue, 2767° / 48°0
Morning50°feels 49°
Afternoon66°feels 66°
Evening58°feels 57°
Overnight49°feels 45°
67 °
Marengo, Tuesday, 27 October
Light rain. High 67°, low 48°.
Pressure30.24 inHg
Wind6.8 mph SE
Humidity76%
Visibility6.2 mi
Dew point54°
Wed, 2870° / 53°0.08
Morning55°feels 55°
Afternoon69°feels 68°
Evening62°feels 62°
Overnight57°feels 56°
70 °
Marengo, Wednesday, 28 October
Light rain. High 70°, low 53°.
Pressure30.12 inHg
Wind11.5 mph S
Humidity62%
Visibility6.2 mi
Dew point52°
Thu, 2963° / 48°1.66
Morning58°feels 57°
Afternoon60°feels 59°
Evening52°feels 51°
Overnight50°feels 49°
63 °
Marengo, Thursday, 29 October
Heavy rain. High 63°, low 48°.
Pressure30.21 inHg
Wind6 mph NE
Humidity54%
Visibility—
Dew point44°
Fri, 3071° / 45°0.01
Morning53°feels 51°
Afternoon66°feels 65°
Evening64°feels 64°
Overnight60°feels 59°
71 °
Marengo, Friday, 30 October
Light rain. High 71°, low 45°.
Pressure30.15 inHg
Wind9.2 mph SE
Humidity65%
Visibility—
Dew point51°
Sat, 3168° / 59°0.08
Morning62°feels 60°
Afternoon65°feels 64°
Evening61°feels 60°
Overnight59°feels 58°
68 °
Marengo, Saturday, 31 October
Light rain. High 68°, low 59°.
Pressure30.00 inHg
Wind13.5 mph S
Humidity51%
Visibility—
Dew point46°
Sun, 0162° / 57°0.54
Morning61°feels 60°
Afternoon62°feels 61°
Evening58°feels 58°
Overnight57°feels 57°
62 °
Marengo, Sunday, 1 November
Rain. High 62°, low 57°.
Pressure29.68 inHg
Wind21.6 mph S
Humidity78%
Visibility—
Dew point55°
Mon, 0253° / 41°0.21
Morning43°feels 37°
Afternoon48°feels 47°
Evening52°feels 51°
Overnight49°feels 47°
53 °
Marengo, Monday, 2 November
Rain. High 53°, low 41°.
Pressure29.50 inHg
Wind17.3 mph N
Humidity80%
Visibility—
Dew point41°
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 Marengo, 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.