Middlesex County weather alerts
There are no active weather alerts for Middlesex County, MA right now.
Since 2016 the National Weather Service has issued about 1,255 alerts that included Middlesex County, roughly 126 a year. The most common is the severe thunderstorm warning (251 from 2016 to 2025). The last tornado warning was issued on June 18, 2026. 21 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 Middlesex County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Suffolk County, Norfolk County, Essex County, Worcester County.
Middlesex County alert history
Alert events that included Middlesex County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 251 | 12 | August 8, 2026 |
| Winter Weather Advisory | 128 | 11 | March 5, 2026 |
| Flood Warning | 121 | 2 | September 27, 2026 |
| Wind Advisory | 121 | 4 | September 25, 2026 |
| Flood Watch | 63 | 2 | September 26, 2026 |
| Flash Flood Warning | 62 | 1 | August 3, 2026 |
| Dense Fog Advisory | 61 | 0 | March 31, 2025 |
| Heat Advisory | 50 | 5 | August 6, 2026 |
| Winter Storm Warning | 49 | 2 | February 22, 2026 |
| Winter Storm Watch | 48 | 2 | February 22, 2026 |
| Flood Advisory | 45 | 0 | April 22, 2019 |
| Severe Thunderstorm Watch | 44 | 0 | September 6, 2025 |
| Frost Advisory | 29 | 1 | October 7, 2026 |
| High Wind Warning | 28 | 1 | March 16, 2026 |
| High Wind Watch | 24 | 1 | March 16, 2026 |
| Red Flag Warning | 22 | 0 | November 19, 2024 |
| Tornado Warning | 17 | 1 | June 18, 2026 |
| Snow Squall Warning | 15 | 4 | January 1, 2026 |
| Cold Weather Advisory | 14 | 5 | February 9, 2026 |
| Freeze Warning | 12 | 0 | October 10, 2025 |
| Fire Weather Watch | 9 | 0 | May 17, 2023 |
| Freeze Watch | 7 | 0 | October 10, 2025 |
| Extreme Heat Watch | 7 | 1 | July 1, 2026 |
| Extreme Heat Warning | 6 | 1 | July 1, 2026 |
| Blizzard Warning | 5 | 1 | February 22, 2026 |
| Extreme Cold Watch | 4 | 0 | February 3, 2023 |
| Extreme Cold Warning | 4 | 0 | February 3, 2023 |
| Tornado Watch | 4 | 1 | June 18, 2026 |
| Tropical Storm Warning | 2 | 0 | July 8, 2021 |
| Coastal Flood Advisory | 1 | 0 | January 30, 2018 |
| Ice Storm Warning | 1 | 0 | December 29, 2019 |
| Tropical Storm Watch | 1 | 0 | August 3, 2020 |
Tornado history in Middlesex County
21 tornadoes have been recorded in Middlesex County since 1950, killing 1 people and injuring 6. That ranks 3 of 14 counties in Massachusetts. The most recent was on September 6, 2025 (rated EF0).
Strongest tornadoes in Middlesex County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| October 3, 1970 | F3 | Worcester County | 35.4 mi | 60 yd | 1 | 0 |
| September 29, 1974 | F3 | Middlesex County | 0.1 mi | 33 yd | 0 | 1 |
| July 21, 1972 | F2 | Middlesex County | 7.6 mi | 37 yd | 0 | 4 |
| August 28, 1965 | F2 | Middlesex County | 2 mi | 10 yd | 0 | 0 |
| July 11, 1958 | F2 | Middlesex County | 1.5 mi | 17 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| September 6, 2025 | EF0 | Middlesex County | 2.4 mi | 100 yd | 0 | 0 |
| August 23, 2021 | EF0 | Middlesex County | 0.1 mi | 50 yd | 0 | 0 |
| August 23, 2021 | EF0 | Middlesex County | 0.8 mi | 10 yd | 0 | 0 |
| August 22, 2016 | EF1 | Middlesex County | 0.9 mi | 400 yd | 0 | 0 |
| August 7, 1986 | F1 | Middlesex County | 4 mi | 73 yd | 0 | 0 |
About Middlesex County
- Population: 1,668,956 (2024 estimate)
- State: Massachusetts
- NOAA Weather Radio SAME code: 025017 (how to use it)
- Cities: Cambridge, Lowell