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Alvan (Alvin), IL Weather & Growing Conditions

Overnight
65°F
Mostly Cloudy
Mostly cloudy, with a low around 65. East southeast wind around 7 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 65°F Mostly Cloudy 7 mph ESE 5%
Saturday 85°F Chance Showers And Thunderstorms 8 mph SSE 42%
Saturday Night 68°F Slight Chance Showers And Thunderstorms 3 to 7 mph S 40%
Sunday 82°F Showers And Thunderstorms Likely 1 to 9 mph NNE 57%
Sunday Night 59°F Showers And Thunderstorms Likely 12 mph NE 62%
Monday 70°F Showers And Thunderstorms Likely 14 mph ENE 66%
Monday Night 54°F Chance Showers And Thunderstorms 10 to 15 mph NE 46%
Tuesday 68°F Chance Showers And Thunderstorms 13 mph NE 28%
Tuesday Night 53°F Slight Chance Rain Showers then Mostly Cloudy 5 to 12 mph NNE 16%
Wednesday 69°F Mostly Cloudy 6 to 9 mph NNE 6%
Wednesday Night 54°F Mostly Cloudy 2 to 9 mph NNE 6%
Thursday 72°F Partly Sunny 3 to 7 mph NNE 4%
Thursday Night 54°F Mostly Cloudy 2 to 7 mph NNE 4%
Friday 73°F Mostly Sunny 2 to 7 mph NNE 3%

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

Growing snapshot for Alvan (Alvin), IL

Last spring frost
Apr 21
First fall frost
Oct 20
Growing season
181 days
Hardiness zone
6a

Explore more for Alvan (Alvin), IL: full frost dates · planting calendar · Illinois frost dates

Climate data from the nearest NOAA station, Danville, Il (10.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.