Ulm, AR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ulm, a town in Prairie County, Arkansas.
This Afternoon
101°F
Sunny
Sunny, with a high near 101. Heat index values as high as 104. South wind around 5 mph.
7-day forecast for Ulm
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 101°F | Sunny | 5 mph S | 0% |
| Tonight | 74°F | Clear | 5 mph SW | 0% |
| Saturday | 102°F | Sunny | 5 mph WSW | 1% |
| Saturday Night | 74°F | Mostly Clear | 5 mph SSW | 0% |
| Sunday | 101°F | Sunny | 5 to 10 mph WSW | 0% |
| Sunday Night | 76°F | Partly Cloudy | 5 mph WSW | 1% |
| Monday | 99°F | Mostly Sunny | 5 to 10 mph WNW | 10% |
| Monday Night | 72°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph NNW | 21% |
| Tuesday | 93°F | Mostly Sunny | 10 mph NNE | 9% |
| Tuesday Night | 66°F | Partly Cloudy | 10 to 15 mph NNE | 9% |
| Wednesday | 90°F | Sunny | 10 mph NNE | 5% |
| Wednesday Night | 65°F | Mostly Clear | 10 mph NNE | 2% |
| Thursday | 89°F | Sunny | 10 mph NNE | 3% |
| Thursday Night | 65°F | Mostly Clear | 5 to 10 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Ulm (34.576, -91.462). Updated through the day.
Growing snapshot for Ulm
Last spring frost
Mar 11
First fall frost
Nov 17
Growing season
250 days
Hardiness zone
8b
More local growing data for Ulm: nearby ZIP 72170 weather · frost dates · planting calendar · Arkansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Stuttgart 9 Ese, Ar (6.9 mi from Ulm). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.