Montpelier, IA Weather & Growing Conditions
Today
83°F
Occasional Showers And Thunderstorms
Occasional showers and thunderstorms before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 83. South wind 5 to 10 mph. Chance of precipitation is 90%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Occasional Showers And Thunderstorms | 5 to 10 mph S | 86% |
| Tonight | 65°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 to 10 mph W | 86% |
| Sunday | 71°F | Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 10 to 15 mph NE | 78% |
| Sunday Night | 60°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 49% |
| Monday | 64°F | Rain Showers Likely | 10 to 15 mph NE | 55% |
| Monday Night | 54°F | Chance Rain Showers | 10 mph NE | 46% |
| Tuesday | 63°F | Slight Chance Rain Showers | 10 mph NE | 22% |
| Tuesday Night | 50°F | Partly Cloudy | 5 to 10 mph NE | 5% |
| Wednesday | 67°F | Mostly Sunny | 5 mph NE | 1% |
| Wednesday Night | 54°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Thursday | 69°F | Mostly Sunny | 0 to 5 mph NE | 4% |
| Thursday Night | 56°F | Partly Cloudy | 0 to 5 mph NE | 3% |
| Friday | 72°F | Mostly Sunny | 0 to 5 mph NE | 3% |
| Friday Night | 56°F | Partly Cloudy | 0 to 5 mph E | 5% |
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 Sep 19, 2026.