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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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
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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.