National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Excessive Rainfall and Significant Flooding in the Upper Midwest This Weekend

Heavy to excessive rainfall is expected over the weekend across eastern Iowa, northern Missouri, northwest Illinois and southern Wisconsin. Numerous flash floods, some with significant impacts, are expected in these areas. Heaviest rainfall will occur overnight Saturday and Sunday, so be sure to have multiple ways to receive warnings. Read More >

Current conditions at

Chattanooga, Lovell Field (KCHA)

Lat: 35.03°NLon: 85.2°WElev: 679ft.

Partly Cloudy

77°F

25°C

Humidity 71%
Wind Speed NE 7 mph
Barometer 30.19 in (1021.4 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 10 Aug 9:53 am EDT
Extended Forecast for

Collegedale TN

  • Today

    Today: Mostly sunny, with a high near 88. East wind around 5 mph.

    High: 88 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 70. East wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Mostly Clear

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Calm wind becoming east around 5 mph in the afternoon.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 71. Southeast wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 60%.

    High: 88 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 5am, then a slight chance of showers. Mostly cloudy, with a low around 71. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 71 °F

    Showers
    Likely then
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers, then showers and thunderstorms likely after 8am. Mostly cloudy, with a high near 89. Calm wind becoming southwest around 5 mph. Chance of precipitation is 70%.

    High: 89 °F

    Chance
    Showers then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

    Low: 72 °F

    T-storms
    Likely then
    Slight Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 88.

    High: 88 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 88. East wind around 5 mph.
Tonight
Mostly clear, with a low around 70. East wind around 5 mph becoming calm in the evening.
Monday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Calm wind becoming east around 5 mph in the afternoon.
Monday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 71. Southeast wind around 5 mph becoming calm in the evening.
Tuesday
A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 60%.
Tuesday Night
Showers and thunderstorms likely before 5am, then a slight chance of showers. Mostly cloudy, with a low around 71. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Wednesday
A slight chance of showers, then showers and thunderstorms likely after 8am. Mostly cloudy, with a high near 89. Calm wind becoming southwest around 5 mph. Chance of precipitation is 70%.
Wednesday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Thursday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 88.
Thursday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Collegedale TN
 35.06°N 85.08°W (Elev. 801 ft)
Last Update:
10:04 am EDT Aug 10, 2025
Forecast Valid:
10am EDT Aug 10, 2025-6pm EDT Aug 16, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation