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La Prairie, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for La Prairie, a village in Adams County, Illinois.

This Afternoon
69°F
Light Rain
Rain and a slight chance of thunderstorms. Cloudy, with a high near 69. South wind around 20 mph, with gusts as high as 29 mph. Chance of precipitation is 100%.

7-day forecast for La Prairie

WhenTempForecastWindPrecip
This Afternoon 69°F Light Rain 20 mph S 96%
Tonight 51°F Light Rain Likely then Chance Rain Showers 12 to 17 mph S 60%
Wednesday 57°F Chance Rain Showers then Cloudy 13 to 18 mph SW 12%
Wednesday Night 44°F Mostly Cloudy 12 mph SW 2%
Thursday 58°F Partly Sunny 9 to 15 mph W 10%
Thursday Night 43°F Mostly Cloudy then Slight Chance T-storms 8 mph NW 23%
Friday 54°F Mostly Cloudy 10 mph N 7%
Friday Night 36°F Mostly Cloudy 1 to 7 mph N 2%
Saturday 54°F Mostly Sunny 1 to 5 mph NW 1%
Saturday Night 36°F Mostly Clear 1 to 5 mph W 2%
Sunday 60°F Sunny 5 to 9 mph W 9%
Sunday Night 37°F Mostly Clear 6 mph W 4%
Monday 64°F Sunny 5 to 13 mph SW 1%
Monday Night 42°F Mostly Clear 7 mph W 0%

Forecast source: National Weather Service (api.weather.gov) for La Prairie (40.147, -91.002). Updated through the day.

Growing snapshot for La Prairie

Last spring frost
Apr 18
First fall frost
Oct 21
Growing season
187 days
Hardiness zone
6a

More local growing data for La Prairie: nearby ZIP 62339 weather · frost dates · planting calendar · Illinois frost dates

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Climate data from the nearest NOAA station, Golden, Il (1.7 mi from La Prairie). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.