Areas of Excessive Rainfall and Extreme Heat; Monitoring Tropical Storm Erin

Heavy to excessive rainfall over the southern Appalachians may bring areas of flooding Tuesday. Hot to extremely hot temperatures are in place through Tuesday across much of the western U.S. and northern New England. Tropical Storm Erin is forecast to become a Major Hurricane by this weekend as it moves across the central Atlantic Ocean. Monitor future forecasts for any East Coast impacts. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Chattanooga, Lovell Field (KCHA)

Lat: 35.03°NLon: 85.2°WElev: 679ft.

Mostly Cloudy

77°F

25°C

Humidity	82%
Wind Speed	S 3 mph
Barometer	30.08 in (1017.8 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	79°F (26°C)
Last update	12 Aug 1:53 am EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Collegedale TN

Overnight
Low: 71 °F
Slight Chance
T-storms
Tuesday
High: 82 °F
Chance
T-storms then
T-storms
Tuesday Night
Low: 71 °F
T-storms
Likely and
Patchy Fog
Wednesday
High: 85 °F
Chance
T-storms then
T-storms
Likely
Wednesday Night
Low: 71 °F
T-storms
Likely then
Chance
Showers
Thursday
High: 88 °F
Slight Chance
T-storms then
Chance
T-storms
Thursday Night
Low: 71 °F
Chance
T-storms then
Partly Cloudy
Friday
High: 90 °F
Mostly Sunny
then Chance
T-storms
Friday Night
Low: 71 °F
Chance
T-storms then
Mostly Clear

Detailed Forecast

Overnight

A 10 percent chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 71. South wind around 5 mph becoming calm.

Tuesday

Showers and thunderstorms likely before 3pm, then showers and possibly a thunderstorm between 3pm and 5pm, then showers and thunderstorms likely after 5pm. High near 82. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Tuesday Night

Showers and thunderstorms likely, mainly before 7pm. Patchy fog between 1am and 3am. Otherwise, mostly cloudy, with a low around 71. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Wednesday

A chance of showers, then showers and thunderstorms likely after 11am. Partly sunny, with a high near 85. Southwest wind around 5 mph. Chance of precipitation is 70%.

Wednesday Night

Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am, then a slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 60%.

Thursday

A 50 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 88. Calm wind becoming west around 5 mph.

Thursday Night

A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Calm wind.

Friday

A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90.

Friday Night

A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71.

Saturday

A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 92.

Saturday Night

Mostly clear, with a low around 71.