Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Lone Rock Tri-County Regional Airport (KLNR)

Lat: 43.21° N Lon: 90.19° W Elev: 712 ft.

Overcast

65°F

18°C

Humidity 84%
Wind Speed E 7 mph
Barometer 30.21 in (1022.6 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 18 Sep 12:56 pm CDT
Detailed forecast for

Iowa County

Rest Of Today
Mostly cloudy with chance of light showers and slight chance of thunderstorms. Near steady temperature in the upper 60s. East winds 10 to 15 mph. Chance of precipitation 40 percent.
Tonight
Showers likely through around midnight. Chance of thunderstorms through the night. Showers after midnight. Locally heavy rainfall possible after midnight. Lows in the upper 50s. East winds 10 to 15 mph. Chance of precipitation near 100 percent.
Saturday
Showers and slight chance of thunderstorms in the morning, then showers and chance of thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Highs in the mid 70s. Southeast winds 5 to 10 mph. Chance of precipitation 90 percent.
Saturday Night
Cloudy. Rain showers likely and chance of thunderstorms through around midnight, then chance of rain showers and slight chance of thunderstorms after midnight. Lows in the upper 50s. Northeast winds 5 to 15 mph. Chance of precipitation 70 percent.
Sunday
Mostly cloudy with a 50 percent chance of light rain showers. Highs in the upper 60s. Northeast winds 10 to 15 mph.
Sunday Night
Mostly cloudy. Lows in the lower 50s.
Monday
Mostly cloudy with a 40 percent chance of light rain showers. Highs in the lower 60s.
Monday Night
Mostly cloudy through around midnight then becoming partly cloudy. A 30 percent chance of light rain showers. Lows in the upper 40s.
Tuesday
Partly sunny. Highs in the lower 60s.
Tuesday Night
Partly cloudy. Lows in the mid 40s.
Wednesday
Partly sunny. Highs in the mid 60s.
Wednesday Night
Partly cloudy. Lows in the upper 40s.
Thursday
Partly sunny. Highs in the upper 60s.



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132 PM CDT Fri Sep 18 2026
 
 

Additional Resources

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