Extreme Heat Warning EXTREME HEAT WARNING - Johnson County
NWS North Mississippi Valley Regional Radar WU Central Satellite
Radar/Satellite images courtesy of NOAA/NWS and Weather Underground.
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Updated: @ 03-Sep-2026 11:22pm  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 83.5, Max: 99.0, Min: 77.0 83.5°F
Colder 2.1°F than last hour.

Warm

Feels like: 88°F

24-hr difference
1.1°FWarmer 1.1°F than yesterday at this time.
  Today Yesterday
High: 99°F
3:00pm
99°F
3:00pm
Low: 77°F
7:00am
77°F
7:00am
 Calm SSW
0
Gust:
0 mph
0 Bft - Calm
Today: 6.9 mph 10:05am
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
Storm Rain: 0 in
This Month: 0 in
Season Total: 78.28 in
15 days since last rain.
Friday

Friday: Sunny
Sunny
Humidity & Barometer Almanac Moon
Humidity: 64 % Increased 4.0% since last hour.
Dew Point: 70°F Decreased 0.2°F since last hour.
Barometer: 29.77 inHg Rising 0.01  inHg/hr
Baro Trend: Steady
Sunrise: 6:50am
Sunset: 7:46pm
Moonset: 2:05pm
Moonrise: 11:18pm
Waning Gibbous
Waning Gibbous, Moon at 21 days in cycle
52%
Illuminated
UV Index Solar Radiation
   0    None
High: 5 @ 11:40am
0 W/m2
High: 577.76 @  1:15pm
 NWS Weather Forecast  - Outlook
Tonight

Tonight: Clear
Clear
Friday

Friday: Sunny
Sunny
Friday
Night
Friday Night: Mostly Clear
Mostly Clear
Saturday

Saturday: Sunny
Sunny
Saturday
Night
Saturday Night: Mostly Clear
Mostly Clear
Sunday

Sunday: Sunny
Sunny
Sunday
Night
Sunday Night: Partly Cloudy
Partly Cloudy
Lo 73 °F Hi 96 °F Lo 74 °F Hi 98 °F Lo 74 °F Hi 97 °F Lo 73 °F
Detailed National Weather Service Forecast