Neponset, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Neponset, a village in Bureau County, Illinois.
Today
86°F
Mostly Sunny
Mostly sunny, with a high near 86. Southwest wind 5 to 10 mph.
7-day forecast for Neponset
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Mostly Sunny | 5 to 10 mph SW | 1% |
| Tonight | 68°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 mph S | 48% |
| Wednesday | 79°F | Showers And Thunderstorms Likely | 5 mph W | 67% |
| Wednesday Night | 64°F | Showers And Thunderstorms | 5 mph N | 84% |
| Thursday | 78°F | Chance Showers And Thunderstorms | 5 mph NE | 59% |
| Thursday Night | 63°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph E | 19% |
| Friday | 81°F | Mostly Sunny | 0 to 5 mph S | 12% |
| Friday Night | 65°F | Mostly Clear | 0 to 5 mph S | 12% |
| Saturday | 84°F | Sunny | 5 mph SW | 9% |
| Saturday Night | 70°F | Mostly Clear | 5 to 10 mph S | 10% |
| Sunday | 86°F | Sunny | 10 to 15 mph SW | 10% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph S | 33% |
| Monday | 85°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 10 mph S | 33% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 10 mph SW | 35% |
Forecast source: National Weather Service (api.weather.gov) for Neponset (41.297, -89.790). Updated through the day.
Growing snapshot for Neponset
Last spring frost
Apr 24
First fall frost
Oct 17
Growing season
175 days
Hardiness zone
5b
More local growing data for Neponset: nearby ZIP 61345 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
New Bedford
Ohio
Princeton
Seatonville
Sheffield
Spring Valley
Tiskilwa
Walnut
Wyanet
Climate data from the nearest NOAA station, Kewanee 1 E, Il (6.4 mi from Neponset). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.