Big Spring, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Big Spring, a community in Montgomery County, Missouri.
This Afternoon
96°F
Mostly Sunny
Mostly sunny, with a high near 96. Southwest wind around 6 mph.
7-day forecast for Big Spring
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 96°F | Mostly Sunny | 6 mph SW | 1% |
| Tonight | 68°F | Partly Cloudy | 2 mph SW | 4% |
| Sunday | 89°F | Chance Rain Showers then Partly Sunny | 3 mph W | 25% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms | 5 mph NE | 86% |
| Monday | 75°F | Showers And Thunderstorms | 2 to 6 mph NE | 86% |
| Monday Night | 56°F | Chance Showers And Thunderstorms | 6 mph N | 36% |
| Tuesday | 68°F | Partly Sunny | 5 to 8 mph N | 10% |
| Tuesday Night | 50°F | Partly Cloudy | 2 to 7 mph N | 2% |
| Wednesday | 72°F | Mostly Sunny | 5 mph N | 1% |
| Wednesday Night | 51°F | Partly Cloudy | 3 mph NE | 0% |
| Thursday | 75°F | Mostly Sunny | 3 mph NE | 4% |
| Thursday Night | 55°F | Mostly Cloudy | 2 mph NE | 6% |
| Friday | 75°F | Slight Chance Rain Showers | 1 to 5 mph NE | 15% |
| Friday Night | 55°F | Mostly Cloudy | 3 mph NE | 6% |
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.