Arrow Rock, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Arrow Rock, a town in Saline County, Missouri.
This Afternoon
99°F
Mostly Sunny
Mostly sunny, with a high near 99. Heat index values as high as 101. Southwest wind around 12 mph, with gusts as high as 18 mph.
7-day forecast for Arrow Rock
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 99°F | Mostly Sunny | 12 mph SW | 2% |
| Tonight | 68°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 3 to 7 mph WSW | 23% |
| Sunday | 87°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 3 to 7 mph WNW | 37% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 3 to 8 mph NNE | 84% |
| Monday | 74°F | Showers And Thunderstorms | 5 to 9 mph NNE | 84% |
| Monday Night | 55°F | Chance Rain Showers then Mostly Cloudy | 5 to 9 mph NNE | 26% |
| Tuesday | 71°F | Mostly Cloudy | 9 mph NNE | 9% |
| Tuesday Night | 49°F | Partly Cloudy | 2 to 8 mph NNE | 2% |
| Wednesday | 74°F | Mostly Sunny | 2 to 6 mph NNE | 0% |
| Wednesday Night | 51°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Thursday | 77°F | Partly Sunny | 0 to 5 mph ENE | 8% |
| Thursday Night | 56°F | Mostly Cloudy then Slight Chance Rain Showers | 3 mph ENE | 18% |
| Friday | 77°F | Slight Chance Rain Showers | 1 to 6 mph E | 21% |
| Friday Night | 57°F | Mostly Cloudy | 5 mph E | 10% |
Forecast source: National Weather Service (api.weather.gov) for Arrow Rock (39.070, -92.947). Updated through the day.
Growing snapshot for Arrow Rock
Last spring frost
Apr 13
First fall frost
Oct 22
Growing season
191 days
Hardiness zone
6b
More local growing data for Arrow Rock: nearby ZIP 65320 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Blackburn
Emma
Gilliam
Grand Pass
Malta Bend
Marshall
Miami
Mount Leonard
Nelson
Slater
Sweet Springs
Climate data from the nearest NOAA station, New Franklin 1W, Mo (10.8 mi from Arrow Rock). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.