Burr Oak, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Burr Oak, a community in Fillmore County, Iowa.
Today
66°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Cloudy. High near 66, with temperatures falling to around 64 in the afternoon. Southeast wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Burr Oak
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 66°F | Showers And Thunderstorms Likely | 6 mph SE | 70% |
| Tonight | 56°F | Chance Showers And Thunderstorms | 7 to 10 mph N | 47% |
| Sunday | 66°F | Slight Chance Rain Showers then Mostly Cloudy | 13 mph NE | 15% |
| Sunday Night | 50°F | Mostly Cloudy | 10 mph NE | 12% |
| Monday | 62°F | Slight Chance Rain Showers | 10 mph NE | 23% |
| Monday Night | 45°F | Slight Chance Rain Showers then Mostly Cloudy | 7 mph NE | 15% |
| Tuesday | 60°F | Mostly Sunny | 5 to 8 mph NE | 9% |
| Tuesday Night | 42°F | Mostly Clear | 5 mph E | 2% |
| Wednesday | 64°F | Sunny | 5 mph E | 1% |
| Wednesday Night | 47°F | Mostly Clear | 2 mph E | 3% |
| Thursday | 66°F | Mostly Sunny | 3 mph E | 8% |
| Thursday Night | 49°F | Partly Cloudy | 2 mph E | 3% |
| Friday | 69°F | Mostly Sunny | 1 to 5 mph E | 5% |
| Friday Night | 50°F | Partly Cloudy | 2 mph SE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Burr Oak (43.458, -91.862). Updated through the day.
Growing snapshot for Burr Oak
Last spring frost
May 10
First fall frost
Sep 28
Growing season
140 days
Hardiness zone
4b
More local growing data for Burr Oak: nearby ZIP 55922 weather · frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Mabel, Mn (7.2 mi from Burr Oak). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.