Irondale, MO Weather & Growing Conditions
Today
90°F
Patchy Fog then Sunny
Patchy fog before 9am. Sunny, with a high near 90. Southeast wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Patchy Fog then Sunny | 2 mph SE | 0% |
| Tonight | 67°F | Mostly Clear | 2 mph S | 0% |
| Wednesday | 92°F | Sunny | 5 mph S | 3% |
| Wednesday Night | 71°F | Partly Cloudy then Chance Showers And Thunderstorms | 5 mph S | 46% |
| Thursday | 89°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph S | 66% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms | 0 to 3 mph S | 51% |
| Friday | 88°F | Chance Showers And Thunderstorms | 3 mph SW | 51% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 2 mph S | 46% |
| Saturday | 90°F | Chance Showers And Thunderstorms | 3 mph SW | 30% |
| Saturday Night | 70°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 3 mph S | 17% |
| Sunday | 92°F | Sunny | 6 mph SW | 3% |
| Sunday Night | 72°F | Mostly Clear | 5 mph S | 3% |
| Monday | 93°F | Sunny | 7 mph SW | 3% |
| Monday Night | 73°F | Mostly Clear | 6 mph S | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Irondale, MO
Last spring frost
Apr 11
First fall frost
Oct 28
Growing season
198 days
Hardiness zone
6b
Explore more for Irondale, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Potosi 4 Sw, Mo (9.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.