| NWS Forecast for: Grainger County Issued by: National Weather Service Morristown, TN Last Update: 233 PM EDT Fri Aug 28 2026 |  |
| Rest Of Today: Sunny. Highs in the mid 80s. Light winds. Tonight: Mostly clear. Lows in the mid 60s. Light winds. Saturday: Sunny. Highs in the upper 80s. Light winds. Saturday Night: Partly cloudy. Lows in the upper 60s. Light winds. Sunday: Mostly sunny. Highs in the upper 80s. Light winds. Sunday Night: Partly cloudy. Lows in the upper 60s. Monday: Sunny. Highs around 90. Monday Night: Mostly clear. Lows around 70. Tuesday: Sunny. Highs in the lower 90s. Tuesday Night: Mostly clear. Lows in the lower 70s. Wednesday: Mostly sunny. Highs in the lower 90s. Wednesday Night: Partly cloudy. Lows in the lower 70s. Thursday: Sunny. A slight chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent. | |
| Zone Forecast: Grainger County | |
Visit your local NWS office at: https://www.weather.gov/mrx |