Harman US

Lena, IL Weather & Growing Conditions

Overnight
62°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 4am, then patchy fog and occasional showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy. Low around 62, with temperatures rising to around 64 overnight. East wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

7-day forecast

WhenTempForecastWindPrecip
Overnight 62°F Showers And Thunderstorms Likely 10 mph E 94%
Saturday 75°F Patchy Fog 5 to 10 mph SE 99%
Saturday Night 60°F Showers And Thunderstorms 5 to 10 mph E 88%
Sunday 67°F Chance Rain Showers 10 to 15 mph NE 47%
Sunday Night 54°F Chance Rain Showers 15 mph NE 27%
Monday 63°F Chance Rain Showers 15 mph NE 39%
Monday Night 48°F Slight Chance Rain Showers 10 to 15 mph NE 22%
Tuesday 61°F Slight Chance Rain Showers then Partly Sunny 15 mph NE 17%
Tuesday Night 46°F Partly Cloudy 5 to 10 mph NE 7%
Wednesday 65°F Mostly Sunny 10 mph NE 2%
Wednesday Night 49°F Partly Cloudy 5 to 10 mph NE 1%
Thursday 66°F Mostly Sunny 5 mph NE 5%
Thursday Night 50°F Partly Cloudy 5 mph NE 4%
Friday 69°F Mostly Sunny 5 mph NE 4%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Lena, IL

Last spring frost
Apr 27
First fall frost
Oct 9
Growing season
165 days
Hardiness zone
5a

Explore more for Lena, IL: full frost dates · planting calendar · Illinois frost dates

Climate data from the nearest NOAA station, Stockton 3 Nne, Il (7.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.