Brilliant, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brilliant, a community in Jefferson County, Ohio.
Tonight
58°F
Mostly Clear
Mostly clear, with a low around 58. North wind around 5 mph.
7-day forecast for Brilliant
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Mostly Clear | 5 mph N | 6% |
| Saturday | 80°F | Mostly Sunny | 3 mph NE | 6% |
| Saturday Night | 66°F | Mostly Cloudy then Showers And Thunderstorms Likely | 2 to 7 mph SE | 64% |
| Sunday | 79°F | Showers And Thunderstorms | 8 mph SW | 94% |
| Sunday Night | 60°F | Showers And Thunderstorms | 8 mph N | 94% |
| Monday | 70°F | Chance Rain Showers | 10 mph NE | 37% |
| Monday Night | 59°F | Chance Showers And Thunderstorms | 12 mph NE | 57% |
| Tuesday | 68°F | Showers And Thunderstorms Likely | 12 mph NE | 65% |
| Tuesday Night | 56°F | Showers And Thunderstorms Likely | 15 mph E | 70% |
| Wednesday | 66°F | Showers And Thunderstorms Likely | 13 mph E | 70% |
| Wednesday Night | 55°F | Showers And Thunderstorms Likely | 9 to 13 mph E | 60% |
| Thursday | 67°F | Chance Rain Showers | 9 mph E | 40% |
| Thursday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 7 mph NE | 24% |
| Friday | 70°F | Slight Chance Rain Showers | 7 mph N | 15% |
Forecast source: National Weather Service (api.weather.gov) for Brilliant (40.268, -80.638). Updated through the day.
Growing snapshot for Brilliant
Last spring frost
Apr 23
First fall frost
Oct 25
Growing season
185 days
Hardiness zone
6b
More local growing data for Brilliant: nearby ZIP 43913 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Adena
Bergholz
Bloomingdale
Connorville
Dillonvale
East Springfield
Empire
Irondale
Mount Pleasant
New Alexandria
Pottery Addition
Rayland
Richmond
Steubenville
Stratton
Tiltonsville
Toronto
Wintersville
Yorkville
Climate data from the nearest NOAA station, Wheeling Ohio Co Ap, Wv (6.4 mi from Brilliant). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.