Local Forecast

Lanark, IL Weather Forecast & Alerts

Current conditions, 5-day forecast, active weather alerts for Lanark, IL

Active Alerts 1 active

Hour-by-Hour  Current Observation

Wednesday 11:15 PM CDTWednesday 11:15 PM

°F °C
Regional Observations →
79°F

Partly Cloudy

  • 93° / 73° High / Low
  • 84° Feels Like
  • 0% Chance of Rain

Wind

5 mph

SSE

UV Index

0

None

Humidity

85%

Dew 74°F

Sun

6:27 AM · 7:29 PM

Rise · Set

Source: SAVANNA/TRITOWN (KSFY). Slider scrubs the next 12 hours.

5-Day Outlook

Through Sunday

Local Radar →

Tonight

73°

Isolated T-storm

Detailed forecast

Tonight

A slight chance of showers and thunderstorms. Mostly clear, with a low around 73. South wind 5 to 10 mph. Chance of precipitation is 20%.

Thursday

91° 73°

Isolated T-storm

Overnight: Chance of Scattered Thunderstorms

Detailed forecast

Thursday

A slight chance of showers and thunderstorms before 10am. Mostly sunny, with a high near 91. Heat index values as high as 101. South wind 5 to 10 mph. Chance of precipitation is 20%.

Night

A chance of showers and thunderstorms between 1am and 3am. Mostly clear, with a low around 72. South wind around 5 mph. Chance of precipitation is 40%.

Friday

91° 71°

Partly Sunny

Overnight: Chance of Showers

Detailed forecast

Friday

Mostly sunny, with a high near 91.

Night

A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 70. Chance of precipitation is 40%.

Saturday

89° 68°

Partly Sunny

Overnight: Isolated T-storm

Detailed forecast

Saturday

A chance of rain showers before 7am, then a slight chance of showers and thunderstorms between 7am and 1pm. Mostly sunny, with a high near 88. Chance of precipitation is 40%.

Night

A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67.

Sunday

86° 66°

Partly Sunny

Overnight: Isolated T-storm

Detailed forecast

Sunday

A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 85.

Night

A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66.

Lanark, IL Weather Analysis Tools