New Berlin, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for New Berlin, a village in Sangamon County, Illinois.
Today
87°F
Sunny
Sunny, with a high near 87. South wind around 6 mph.
7-day forecast for New Berlin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Sunny | 6 mph S | 0% |
| Tonight | 68°F | Mostly Clear | 6 mph SSE | 1% |
| Wednesday | 87°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 8 mph S | 22% |
| Wednesday Night | 67°F | Chance Showers And Thunderstorms | 6 mph SSE | 79% |
| Thursday | 83°F | Showers And Thunderstorms | 6 mph SSW | 79% |
| Thursday Night | 65°F | Slight Chance Showers And Thunderstorms | 5 mph SSE | 17% |
| Friday | 85°F | Partly Sunny | 3 mph SW | 8% |
| Friday Night | 66°F | Chance Showers And Thunderstorms | 2 mph SSW | 25% |
| Saturday | 87°F | Chance Showers And Thunderstorms then Mostly Sunny | 6 mph SSW | 25% |
| Saturday Night | 71°F | Mostly Clear | 3 to 8 mph S | 9% |
| Sunday | 90°F | Sunny | 8 to 12 mph SSW | 4% |
| Sunday Night | 72°F | Mostly Clear | 10 mph S | 10% |
| Monday | 90°F | Mostly Sunny | 10 mph SSW | 11% |
| Monday Night | 72°F | Slight Chance Showers And Thunderstorms | 9 mph SSW | 22% |
Forecast source: National Weather Service (api.weather.gov) for New Berlin (39.726, -89.914). Updated through the day.
Growing snapshot for New Berlin
Last spring frost
Apr 15
First fall frost
Oct 22
Growing season
188 days
Hardiness zone
6a
More local growing data for New Berlin: nearby ZIP 62670 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Springfield #2, Il (12.3 mi from New Berlin). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.