Burr Oak, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Burr Oak, a community in Fillmore County, Iowa.
This Afternoon
66°F
Rain Showers
Rain showers. Mostly cloudy. High near 66, with temperatures falling to around 64 in the afternoon. South wind 7 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Burr Oak
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Rain Showers | 7 to 14 mph S | 85% |
| Tonight | 52°F | Rain Showers | 7 to 12 mph SE | 91% |
| Wednesday | 54°F | Rain Showers Likely | 8 to 15 mph SW | 74% |
| Wednesday Night | 45°F | Rain Showers | 15 mph W | 78% |
| Thursday | 49°F | Rain Showers | 13 mph NW | 75% |
| Thursday Night | 38°F | Mostly Cloudy | 8 to 13 mph N | 10% |
| Friday | 47°F | Partly Sunny | 3 to 9 mph N | 1% |
| Friday Night | 30°F | Partly Cloudy | 1 mph NW | 1% |
| Saturday | 51°F | Mostly Sunny | 1 to 5 mph SW | 1% |
| Saturday Night | 35°F | Partly Cloudy | 2 to 6 mph W | 6% |
| Sunday | 57°F | Sunny | 8 mph W | 11% |
| Sunday Night | 37°F | Mostly Clear | 6 mph SW | 3% |
| Monday | 59°F | Mostly Sunny | 6 to 12 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 7 mph W | 1% |
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 Nov 3, 2026.