| May 2007 | Lightning | Townsend | 1 killed | Man fishing alone in boat on southern Canyon Ferry Resevoir, on east shore across from Silos, struck and killed by lightning around 320 pm MDT. |
| May 2025 | Thunderstorm Wind | Townsend | - | Mesonet station GINM8 Ginger RAWS measured a 61 mph wind gust. Time estimated using radar given the station reports once per hour. |
| September 2025 | Thunderstorm Wind | Townsend | - | Mesonet station GINM8 Ginger RAWS measured a 61 mph wind gust. Time estimated using radar. |
| July 2023 | Thunderstorm Wind | Townsend | - | Measured via site GINM8 Ginger. |
| July 2023 | Thunderstorm Wind | Townsend | - | Measured by and reported via Ambient Weather. |
| August 2023 | Thunderstorm Wind | Townsend | - | RAWS station GINM8 Ginger measured a peak wind gust of 58 mph. The station reports hourly so the time of the gust was estimated using radar. |
| May 2022 | Thunderstorm Wind | Townsend | - | Mesonet station Ginger Raws recorded a wind gust of 50 knots. |
| August 2022 | Hail | Townsend | - | Public report of ping pong sized hail. |
| August 2022 | Hail | Townsend | - | Social media post from the Townsend area showed quarter sized hail. |
| August 2022 | Hail | Townsend | - | Public report via social media of quarter sized hail. |
| July 2021 | Thunderstorm Wind | Townsend | - | EKHM8 station measured a 56 kt (65 mph) thunderstorm wind gust. |
| July 2021 | Thunderstorm Wind | Townsend | - | Ginger RAWS measured a 53 kt (61 mph) thunderstorm wind gust. |
| July 2021 | Thunderstorm Wind | Townsend | - | The Ginger RAWS near Townsend measured a 67 kt (77 mph) thunderstorm wind gust. |
| August 2019 | Hail | Townsend | - | A trained spotter reports hail size of 1.75 inches in diameter. |
| August 2019 | Hail | Townsend | - | A trained spotter reported hail up to the size of 1.75 inches in diameter. |
| July 2019 | Funnel Cloud | Townsend | - | Trained spotter reported a funnel cloud in Townsend. |
| July 2019 | Hail | Townsend | - | Trained spotter reported hail sized 1.25 inches in Townsend. |
| July 2019 | Thunderstorm Wind | Townsend | - | Sheriff's office reports a tree limb down on a power line. |
| August 2019 | Hail | Townsend | - | A member of the public estimated hail size up to 2 inches in diameter. There are reports of house windows broken, car windshields cracked, and vehicles dented. the time of event was estimated. |
| March 2018 | Flood | Townsend | - | Broadwater County Emergency Manager reported widespread snowmelt flooding for valley locations in the county. Water was entering basements of some homes. Some roadways were flooded too. |
| June 2017 | Thunderstorm Wind | Townsend | - | Mesonet reported thunderstorm wind gust of 59 mph. |
| July 2017 | Thunderstorm Wind | Townsend | - | Thunderstorm outflow winds caused branches to be knocked off trees near the town of Townsend...which fell on nearby power lines...knocking them down. No hail reported...but there was a significant rain shower nearby at the time. |
| April 2016 | Thunderstorm Wind | Townsend | - | A thunderstorm gust to 71 mph was reported at Townsend 8W (the Elkhorn RAWS site). |
| August 2016 | Hail | Townsend | - | A thunderstorm dropped 1 inch diameter hail at Townsend 11E. Also, a thunderstorm wind gust to 66 mph was reported at Townsend 3WNW. |
| August 2016 | Thunderstorm Wind | Townsend | - | A thunderstorm produced a wind gust to 62 mph at Townsend 8W. Also, 1.25 inch diameter hail was reported at Townsend. |
| August 2013 | Thunderstorm Wind | Townsend | - | High winds measuring 50KT (58MPH) were reported 3 miles W of Townsend, MT. |
| July 2012 | Thunderstorm Wind | Townsend | - | Strong outflow winds gusted to an estimated 50KT (58MPH) and knocked down up to 20 power poles 1 mile N of Townsend. |
| August 2011 | Thunderstorm Wind | Townsend | - | A thunderstorm produced a wind gust to 70 mph at Townsend 8W (the Elkhorn RAWS site). |
| August 2011 | Thunderstorm Wind | Townsend | - | A thunderstorm produced a wind gust to 64 mph at Townsend 7NNW (the Silos Recreation site). |
| July 2008 | Thunderstorm Wind | Townsend | - | A severe thunderstorm produced a wind gust to 83 mph at Townsend 8W. |
| August 2008 | Hail | Townsend | - | A severe thunderstorm dropped .75 inch diameter hail at Townsend 7SSE. |
| July 2002 | Hail | Townsend | - | A severe thunderstorm produced 0.75 inch hail at Townsend 8E. |
| July 2002 | Thunderstorm Wind | Townsend | - | A severe thunderstorm produced a 70 mph wind gust at Ginger. Winds were gusting to over 60 mph in the city of Townsend, with a few trees knocked down. |
| July 2002 | Thunderstorm Wind | Townsend | - | A severe thunderstorm produced an 82 mph wind gust at Canyon Ferry Lake near Townsend, and a 61 mph wind gust in the city of Townsend. Numerous trees and power lines were knocked down. Hail up to one quarter inch was reported. |
| July 2002 | Thunderstorm Wind | Townsend | - | A severe thunderstorm produced a wind gust of 60 mph at Townsend 6 NE. |
| August 2002 | Hail | Townsend | - | A severe thunderstorm produced 0.88 inch hail in Townsend. |