Local Forecast

Marengo, IL Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Marengo, IL.

Active Alerts 1 active

Hour-by-Hour  Current Observation

Sunday 1:45 PM CDTSunday 1:45 PM

°F °C
Regional Observations →
78°F

Mostly Cloudy

  • 82° / 75° High / Low
  • 78° Feels Like
  • 0% Chance of Rain

Wind

6 mph

E

UV Index

7

High

Humidity

65%

Dew 66°F

Sun

5:19 AM · 8:34 PM

Rise · Set

Source: JANESVILLE/ROCK (KJVL). Slider scrubs the next 12 hours.

5-Day Outlook

Through Thursday

Local Radar →

Today

82° 75°

Chance of Thunderstorms

Overnight: Isolated T-storm

Detailed forecast

Today

A chance of showers and thunderstorms between 2pm and 5pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 82. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

Night

A slight chance of rain showers before 7pm, then a slight chance of showers and thunderstorms between midnight and 1am. Mostly cloudy, with a low around 75. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

Monday

93° 77°

Mostly Cloudy

Overnight: Mostly Clear

Detailed forecast

Monday

Mostly sunny, with a high near 92. Heat index values as high as 104. South wind 10 to 20 mph, with gusts as high as 30 mph.

Night

Mostly clear, with a low around 77. Heat index values as high as 103. South southwest wind 10 to 15 mph, with gusts as high as 30 mph.

Tuesday

93° 77°

Mostly Sunny

Overnight: Mostly Clear

Detailed forecast

Tuesday

Sunny, with a high near 93. South southwest wind 10 to 15 mph, with gusts as high as 30 mph.

Night

Mostly clear, with a low around 77.

Wednesday

93° 77°

Mostly Sunny

Overnight: Mostly Clear

Detailed forecast

Wednesday

Sunny, with a high near 93.

Night

Mostly clear, with a low around 75.

Thursday

93° 75°

Isolated T-storm

Overnight: Chance of Scattered Thunderstorms

Detailed forecast

Thursday

A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 93.

Night

A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 73.

Marengo, IL Weather Analysis Tools