Big Spring, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Big Spring, a community in Montgomery County, Missouri.
Tonight
69°F
Partly Cloudy
Partly cloudy, with a low around 69. South wind around 5 mph.
7-day forecast for Big Spring
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 69°F | Partly Cloudy | 5 mph S | 6% |
| Saturday | 96°F | Partly Sunny | 2 to 6 mph SW | 5% |
| Saturday Night | 68°F | Partly Cloudy then Slight Chance Rain Showers | 2 mph SW | 15% |
| Sunday | 89°F | Chance Rain Showers then Chance Showers And Thunderstorms | 3 mph W | 35% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph NE | 74% |
| Monday | 75°F | Showers And Thunderstorms Likely | 6 mph NE | 74% |
| Monday Night | 56°F | Chance Showers And Thunderstorms | 7 mph N | 49% |
| Tuesday | 69°F | Slight Chance Rain Showers then Mostly Cloudy | 7 mph N | 19% |
| Tuesday Night | 50°F | Mostly Cloudy | 2 to 6 mph N | 5% |
| Wednesday | 73°F | Mostly Sunny | 5 mph N | 0% |
| Wednesday Night | 51°F | Partly Cloudy | 3 mph NE | 1% |
| Thursday | 74°F | Mostly Sunny | 3 mph NE | 5% |
| Thursday Night | 54°F | Partly Cloudy | 2 mph NE | 2% |
| Friday | 74°F | Mostly Sunny | 1 to 5 mph NE | 8% |
Forecast source: National Weather Service (api.weather.gov) for Big Spring (38.795, -91.483). Updated through the day.
Growing snapshot for Big Spring
Last spring frost
Apr 14
First fall frost
Oct 23
Growing season
191 days
Hardiness zone
6b
More local growing data for Big Spring: nearby ZIP 63363 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Warrenton 1 N, Mo (17.9 mi from Big Spring). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.