Spring Valley, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Spring Valley, a city in Bureau County, Illinois.
This Afternoon
72°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy. High near 72, with temperatures falling to around 70 in the afternoon. South wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Spring Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Showers And Thunderstorms | 15 to 20 mph S | 89% |
| Tonight | 54°F | Showers And Thunderstorms | 15 mph S | 90% |
| Wednesday | 59°F | Chance Rain Showers then Mostly Cloudy | 15 mph SW | 33% |
| Wednesday Night | 46°F | Mostly Cloudy | 10 to 15 mph SW | 11% |
| Thursday | 56°F | Mostly Cloudy then Chance Rain Showers | 5 to 15 mph WSW | 32% |
| Thursday Night | 43°F | Chance Rain Showers | 5 mph NW | 35% |
| Friday | 53°F | Slight Chance Rain Showers | 5 to 10 mph N | 18% |
| Friday Night | 35°F | Partly Cloudy | 0 to 5 mph NNW | 2% |
| Saturday | 53°F | Mostly Sunny | 0 to 5 mph WNW | 5% |
| Saturday Night | 35°F | Partly Cloudy | 0 mph | 4% |
| Sunday | 57°F | Sunny | 0 to 5 mph W | 9% |
| Sunday Night | 35°F | Mostly Clear | 0 to 5 mph W | 3% |
| Monday | 62°F | Sunny | 0 to 10 mph SW | 2% |
| Monday Night | 40°F | Mostly Clear | 0 to 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Spring Valley (41.323, -89.183). Updated through the day.
Growing snapshot for Spring Valley
Last spring frost
Apr 24
First fall frost
Oct 18
Growing season
176 days
Hardiness zone
5b
More local growing data for Spring Valley: nearby ZIP 61320 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Arlington
Buda
Bureau Junction
Cherry
Dalzell
De Pue
Dover
Hollowayville
La Moille
Ladd
Malden
Manlius
Mineral
Neponset
New Bedford
Ohio
Princeton
Seatonville
Sheffield
Tiskilwa
Walnut
Wyanet
Climate data from the nearest NOAA station, Peru, Il (3.3 mi from Spring Valley). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.