Montpelier, IA Weather & Growing Conditions
Today
88°F
Mostly Sunny
Mostly sunny. High near 88, with temperatures falling to around 85 in the afternoon. Southwest wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Mostly Sunny | 5 to 10 mph SW | 13% |
| Tonight | 69°F | Showers And Thunderstorms Likely | 0 to 5 mph NE | 81% |
| Wednesday | 79°F | Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph NE | 80% |
| Wednesday Night | 64°F | Showers And Thunderstorms Likely | 0 to 5 mph N | 73% |
| Thursday | 81°F | Chance Rain Showers then Mostly Sunny | 0 to 5 mph NE | 44% |
| Thursday Night | 64°F | Mostly Clear | 0 mph | 7% |
| Friday | 83°F | Mostly Sunny | 0 to 5 mph S | 5% |
| Friday Night | 67°F | Mostly Clear | 0 mph | 11% |
| Saturday | 86°F | Sunny | 5 mph S | 10% |
| Saturday Night | 72°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 16% |
| Sunday | 87°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 mph S | 16% |
| Sunday Night | 72°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 32% |
| Monday | 87°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 32% |
| Monday Night | 72°F | Chance Showers And Thunderstorms | 5 to 10 mph SE | 33% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Montpelier, IA
Last spring frost
Apr 18
First fall frost
Oct 24
Growing season
188 days
Hardiness zone
5b
Explore more for Montpelier, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Illinois City Dam 16, Il (10.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.