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Chattanooga, Tennessee — 7-Day Severe Weather Forecast
Updated
Today — Saturday, October 10: No Severe Threat
Expect showers throughout the day with a high near 63 and a low around 61. Breezy conditions are anticipated, especially in the mountains. While rain is likely, severe storms are not expected, but be aware of possible lightning.
Tomorrow — Sunday, October 11: No Severe Threat
Primary hazards: heavy rain
Heavy rain and gusty winds are expected throughout the day as remnants of a hurricane move through. The high will be around 66 degrees, with a low near 57. While scattered showers are likely, any thunderstorms that form are not expected to be severe. No SPC outlook was issued.
Day 3 — Monday, October 12: No Severe Threat
The forecast for Monday is sunny with a high near 85 degrees and a low around 56 degrees. No rain or thunderstorms are expected. Conditions appear quiet with no threat of severe weather.
Extended Outlook (Days 4–7)
Day 4 — Tuesday, October 13: No Severe Threat
Tuesday will be sunny with a high temperature around 84 degrees and a low around 60 degrees. Both forecasts indicate the day will be dry with no rain expected. Conditions are not favorable for organized storms to develop.
Day 5 — Wednesday, October 14: No Severe Threat
Temperatures will reach a high of 87 degrees, falling to a low of 64 degrees overnight. It will feel humid and muggy during the day. Sunny skies are expected, and any rain is unlikely.
Day 6 — Thursday, October 15: No Severe Threat
Temperatures will reach 87 degrees, with lows around 67 degrees, making for a warm day. One forecast suggests some scattered showers are possible, totaling about 0.14 inches of rain, while another keeps the day dry. The chance of rain for Thursday is low, at 11% during the day and night.
Day 7 — Friday, October 16: No Severe Threat
Temperatures will be warm, reaching a high around 84 degrees and falling to a low near 66 degrees overnight into Saturday. The day is expected to be mostly sunny, and both forecasts indicate it will remain essentially dry, with only a 12% chance of rain. Showers and thunderstorms are not expected on Friday.
Tornado and severe storm history near Chattanooga
61 tornadoes touched down within 25 miles of Chattanooga from 1996 to 2025, about 2 a year.
18 of them were rated EF2 or stronger. The strongest was the EF4 tornado of April 27, 2011, killing 20 and injuring 335.
69% came between February and April, and April alone had 49%. The latest in the record, which runs through 2025, came on March 25, 2023 (EF1).
Hail an inch or larger is reported about 7.7 times a year within 25 miles (2016 to 2025), and hail 2 inches or larger about once every 10 years. The largest stone measured 2.5 inches, on March 21, 2017.
Damaging wind is reported about 48 times a year; the strongest measured gust was 68 mph, on March 5, 2025.
Source: NOAA Storm Prediction Center severe weather database. A tornado counts if its track came within 25 miles of the city center. Hail and wind are storm reports, and one storm can produce many. spc.noaa.gov
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Written by AI from weather-model data and Storm Prediction Center outlooks. For information only: not a substitute for official National Weather Service watches and warnings. Full disclaimer