Galva, IL Weather & Growing Conditions
Overnight
53°F
Slight Chance Rain Showers
A slight chance of rain showers after 5am. Mostly cloudy. Low around 53, with temperatures rising to around 55 overnight. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 53°F | Slight Chance Rain Showers | 15 mph SW | 19% |
| Wednesday | 57°F | Chance Rain Showers | 15 mph SW | 26% |
| Wednesday Night | 46°F | Mostly Cloudy | 15 mph SW | 14% |
| Thursday | 55°F | Chance Rain Showers | 10 to 15 mph W | 35% |
| Thursday Night | 42°F | Chance Rain Showers | 10 mph NW | 29% |
| Friday | 50°F | Partly Sunny | 5 to 15 mph N | 9% |
| Friday Night | 32°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 51°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 34°F | Mostly Clear | 0 to 5 mph W | 2% |
| Sunday | 57°F | Sunny | 5 to 10 mph W | 1% |
| Sunday Night | 35°F | Clear | 5 mph W | 1% |
| Monday | 63°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 41°F | Mostly Clear | 5 mph W | 0% |
| Tuesday | 63°F | Sunny | 5 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Galva, IL
Last spring frost
Apr 26
First fall frost
Oct 12
Growing season
166 days
Hardiness zone
5b
Explore more for Galva, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Galva, Il (0.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.