Bonham, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bonham, a city in Fannin County, Texas.
This Afternoon
74°F
Mostly Sunny
Mostly sunny. High near 74, with temperatures falling to around 69 in the afternoon. Northwest wind around 15 mph, with gusts as high as 25 mph.
7-day forecast for Bonham
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Mostly Sunny | 15 mph NW | 1% |
| Tonight | 48°F | Mostly Clear | 5 to 10 mph NW | 1% |
| Wednesday | 70°F | Mostly Sunny | 0 to 5 mph NW | 0% |
| Wednesday Night | 46°F | Patchy Fog | 0 to 5 mph SE | 0% |
| Thursday | 75°F | Patchy Fog then Sunny | 5 to 10 mph SSW | 7% |
| Thursday Night | 47°F | Partly Cloudy | 5 to 10 mph NNW | 13% |
| Friday | 68°F | Sunny | 5 to 10 mph NNW | 0% |
| Friday Night | 42°F | Mostly Clear | 5 mph N | 0% |
| Saturday | 66°F | Mostly Sunny | 5 mph N | 1% |
| Saturday Night | 42°F | Partly Cloudy | 0 to 5 mph N | 3% |
| Sunday | 69°F | Sunny | 0 to 5 mph NNW | 2% |
| Sunday Night | 41°F | Clear | 0 mph | 1% |
| Monday | 71°F | Sunny | 0 to 5 mph SSW | 1% |
| Monday Night | 44°F | Mostly Clear | 5 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov) for Bonham (33.588, -96.190). Updated through the day.
Growing snapshot for Bonham
Last spring frost
Mar 16
First fall frost
Nov 13
Growing season
242 days
Hardiness zone
8a
More local growing data for Bonham: nearby ZIP 75418 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Bonham 3Nne, Tx (4.7 mi from Bonham). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.