Harman US

Galva, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Galva, a city in Henry County, Illinois.

This Afternoon
80°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly cloudy. High near 80, with temperatures falling to around 75 in the afternoon. South wind around 5 mph. Chance of precipitation is 20%.

7-day forecast for Galva

WhenTempForecastWindPrecip
This Afternoon 80°F Slight Chance Showers And Thunderstorms 5 mph S 17%
Tonight 66°F Chance Showers And Thunderstorms then Showers And Thunderstorms 5 mph SE 77%
Sunday 71°F Patchy Fog 5 to 15 mph N 70%
Sunday Night 57°F Chance Showers And Thunderstorms 15 mph NE 52%
Monday 63°F Rain Showers Likely 15 mph NE 68%
Monday Night 54°F Rain Showers Likely 10 to 15 mph NE 61%
Tuesday 62°F Rain Showers Likely 15 mph NE 55%
Tuesday Night 50°F Mostly Cloudy 5 to 15 mph NE 7%
Wednesday 64°F Partly Sunny 10 mph NE 4%
Wednesday Night 52°F Partly Cloudy 5 to 10 mph NE 1%
Thursday 68°F Mostly Sunny 5 mph NE 3%
Thursday Night 55°F Slight Chance Rain Showers 0 to 5 mph NE 15%
Friday 71°F Partly Sunny 0 to 5 mph NE 10%
Friday Night 55°F Partly Cloudy 0 to 5 mph NE 5%

Forecast source: National Weather Service (api.weather.gov) for Galva (41.169, -90.037). Updated through the day.

Growing snapshot for Galva

Last spring frost
Apr 26
First fall frost
Oct 12
Growing season
166 days
Hardiness zone
5b

More local growing data for Galva: nearby ZIP 61434 weather · frost dates · planting calendar · Illinois frost dates

Nearby towns & communities

All Illinois locations ›

Climate data from the nearest NOAA station, Galva, Il (0.1 mi from Galva). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.