Grimes County weather alerts
There are no active weather alerts for Grimes County, TX right now.
Since 2016 the National Weather Service has issued about 1,099 alerts that included Grimes County, roughly 110 a year. The most common is the severe thunderstorm warning (221 from 2016 to 2025). The last tornado warning was issued on October 25, 2025. 15 tornadoes have touched down in the county since 1950.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
No warnings, watches or advisories include Grimes County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Walker County, Madison County, Montgomery County, Washington County.
Grimes County alert history
Alert events that included Grimes County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 221 | 13 | August 28, 2026 |
| Flood Advisory | 167 | 12 | October 2, 2026 |
| Dense Fog Advisory | 125 | 9 | November 2, 2026 |
| Heat Advisory | 79 | 9 | September 14, 2026 |
| Flash Flood Warning | 70 | 1 | October 2, 2026 |
| Severe Thunderstorm Watch | 70 | 1 | May 11, 2026 |
| Flood Warning | 64 | 2 | July 14, 2026 |
| Wind Advisory | 52 | 2 | October 16, 2026 |
| Flood Watch | 45 | 6 | October 1, 2026 |
| Tornado Watch | 42 | 2 | March 11, 2026 |
| Tornado Warning | 36 | 0 | October 25, 2025 |
| Red Flag Warning | 25 | 2 | March 16, 2026 |
| Cold Weather Advisory | 18 | 1 | January 31, 2026 |
| Freeze Warning | 16 | 2 | March 17, 2026 |
| Fire Weather Watch | 14 | 1 | March 16, 2026 |
| Extreme Heat Warning | 13 | 2 | July 22, 2026 |
| Winter Weather Advisory | 11 | 0 | January 15, 2024 |
| Freeze Watch | 8 | 1 | February 1, 2026 |
| Winter Storm Warning | 6 | 1 | January 24, 2026 |
| Extreme Cold Warning | 5 | 1 | January 25, 2026 |
| Extreme Cold Watch | 4 | 2 | January 26, 2026 |
| Winter Storm Watch | 3 | 1 | January 24, 2026 |
| Extreme Heat Watch | 3 | 0 | August 17, 2023 |
| Tropical Storm Warning | 2 | 0 | July 6, 2024 |
Tornado history in Grimes County
15 tornadoes have been recorded in Grimes County since 1950, injuring 2 people. That ranks 212 of 254 counties in Texas. The most recent was on October 25, 2025 (rated EF0).
Strongest tornadoes in Grimes County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| February 10, 1981 | F2 | Grimes County | 2.5 mi | 77 yd | 0 | 2 |
| May 26, 2016 | EF2 | Grimes County | 1.3 mi | 100 yd | 0 | 0 |
| November 17, 2015 | EF1 | Grimes County | 9.3 mi | 50 yd | 0 | 0 |
| April 28, 2024 | EF1 | Grimes County | 4.3 mi | 100 yd | 0 | 0 |
| July 26, 1954 | F1 | Grimes County | 1 mi | 50 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| October 25, 2025 | EF0 | Grimes County | 9.9 mi | 100 yd | 0 | 0 |
| April 28, 2024 | EF1 | Grimes County | 4.3 mi | 100 yd | 0 | 0 |
| May 26, 2016 | EF2 | Grimes County | 1.3 mi | 100 yd | 0 | 0 |
| May 26, 2016 | EF1 | Grimes County | 0.1 mi | 50 yd | 0 | 0 |
| May 26, 2016 | EF0 | Grimes County | 0.1 mi | 30 yd | 0 | 0 |
About Grimes County
- Population: 33,448 (2024 estimate)
- State: Texas
- NOAA Weather Radio SAME code: 048185 (how to use it)