Thayer, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thayer, a city in Oregon County, Missouri.
This Afternoon
71°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Cloudy. High near 71, with temperatures falling to around 66 in the afternoon. South wind around 12 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast for Thayer
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Chance Showers And Thunderstorms | 12 mph S | 70% |
| Tonight | 47°F | Scattered Rain Showers then Mostly Cloudy | 5 to 10 mph SW | 54% |
| Wednesday | 64°F | Mostly Sunny | 5 to 10 mph W | 3% |
| Wednesday Night | 35°F | Mostly Clear | 3 mph W | 0% |
| Thursday | 70°F | Sunny | 0 to 5 mph W | 1% |
| Thursday Night | 39°F | Mostly Cloudy | 5 mph NW | 9% |
| Friday | 63°F | Mostly Sunny | 5 to 8 mph N | 0% |
| Friday Night | 34°F | Partly Cloudy | 5 mph N | 0% |
| Saturday | 60°F | Mostly Sunny | 3 mph N | 0% |
| Saturday Night | 31°F | Partly Cloudy | 2 mph NW | 1% |
| Sunday | 64°F | Sunny | 2 to 6 mph NW | 6% |
| Sunday Night | 31°F | Mostly Clear | 3 mph NW | 1% |
| Monday | 67°F | Sunny | 1 to 6 mph W | 1% |
| Monday Night | 33°F | Mostly Clear | 2 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Thayer (36.522, -91.541). Updated through the day.
Growing snapshot for Thayer
Last spring frost
Apr 12
First fall frost
Oct 24
Growing season
194 days
Hardiness zone
7a
More local growing data for Thayer: nearby ZIP 65791 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Mammoth Spring, Ar (6.2 mi from Thayer). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.