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

Signal Mountain TN

Overnight
Low: 69 °F
Slight Chance
T-storms
Tuesday
High: 80 °F
Chance
T-storms and
Patchy Fog
then T-storms
Tuesday Night
Low: 69 °F
Chance
T-storms and
Patchy Fog
Wednesday
High: 83 °F
Chance
T-storms then
T-storms
Wednesday Night
Low: 69 °F
T-storms then
Chance
Showers
Thursday
High: 86 °F
Chance
T-storms then
T-storms
Likely
Thursday Night
Low: 69 °F
Showers
Likely then
Partly Cloudy
Friday
High: 88 °F
Mostly Sunny
then Chance
T-storms
Friday Night
Low: 70 °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 69. Southeast wind around 5 mph becoming calm.

Tuesday

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. Patchy fog between 8am and 11am. High near 80. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Tuesday Night

A 40 percent chance of showers and thunderstorms. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 69. South wind around 5 mph becoming calm.

Wednesday

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 83. Calm wind becoming southwest around 5 mph. Chance of precipitation is 80%.

Wednesday Night

Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am, then a slight chance of showers and thunderstorms after 2am. Low around 69. Calm wind. Chance of precipitation is 80%.

Thursday

Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 86. Calm wind becoming west around 5 mph. Chance of precipitation is 60%.

Thursday Night

Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 69. Calm wind. Chance of precipitation is 60%.

Friday

A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88.

Friday Night

A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 70.

Saturday

A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 89.

Saturday Night

Mostly clear, with a low around 69.

Sunday

A 20 percent chance of showers and thunderstorms. Sunny, with a high near 88.