Spring Valley, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Spring Valley, a city in Bureau County, Illinois.
Today
87°F
Mostly Sunny
Mostly sunny. High near 87, with temperatures falling to around 85 in the afternoon. Southwest wind around 5 mph, with gusts as high as 15 mph.
7-day forecast for Spring Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Mostly Sunny | 5 mph SW | 1% |
| Tonight | 68°F | Mostly Cloudy then Chance Showers And Thunderstorms | 0 to 5 mph S | 32% |
| Wednesday | 82°F | Chance Showers And Thunderstorms | 0 to 5 mph WSW | 53% |
| Wednesday Night | 65°F | Showers And Thunderstorms | 0 to 5 mph N | 87% |
| Thursday | 80°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 63% |
| Thursday Night | 63°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 31% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph SSE | 10% |
| Friday Night | 65°F | Mostly Clear | 0 mph | 10% |
| Saturday | 85°F | Mostly Sunny | 0 to 5 mph SSW | 9% |
| Saturday Night | 70°F | Mostly Clear | 5 to 10 mph SSW | 10% |
| Sunday | 87°F | Mostly Sunny | 10 to 15 mph SW | 10% |
| Sunday Night | 71°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 30% |
| Monday | 87°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 30% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 10 mph SW | 37% |
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 Aug 4, 2026.