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: @ 15-Aug-2026 2:17am  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 82.8, Max: 86.7, Min: 82.6 82.8°F
Colder 1.9°F than last hour.

Warm

Feels like: 89°F

24-hr difference
-0.5°FColder 0.5°F than yesterday at this time.
  Today Yesterday
High: 86.7°F
12:55am
92.5°F
5:15pm
Low: 82.6°F
2:10am
77°F
6:45am
 Calm SSW
0
Gust:
0 mph
0 Bft - Calm
Today: 4.5 mph 12:10am
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
Storm Rain: 0 in
This Month: 3.71 in
Season Total: 77.58 in
5 days since last rain.
Saturday

Saturday: Partly Sunny
Partly Sunny
Humidity & Barometer Almanac Moon
Humidity: 73 % Increased 2.0% since last hour.
Dew Point: 73.2°F Decreased 1.1°F since last hour.
Barometer: 29.75 inHg  
Baro Trend: Steady
Sunrise: 6:33am
Sunset: 8:14pm
Moonrise: 9:49am
Moonset: 9:42pm
Waxing Crescent
Waxing Crescent, Moon at 3 days in cycle
8%
Illuminated
UV Index Solar Radiation
   0    None
High: 0 @ 12:00am
0 W/m2
High: 0 @  12:00am
 NWS Weather Forecast  - Outlook
Overnight

Overnight: Mostly Cloudy
Mostly Cloudy
Saturday

Saturday: Partly Sunny
Partly Sunny
Saturday
Night
Saturday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Sunday

Sunday: Chance Showers And Thunderstorms then Partly Sunny
Chance Showers And T-Storms then Partly Sunny
Sunday
Night
Sunday Night: Partly Cloudy
Partly Cloudy
Monday

Monday: Mostly Sunny
Mostly Sunny
Monday
Night
Monday Night: Partly Cloudy
Partly Cloudy
Lo 76 °F Hi 93 °F Lo 75 °F Hi 87 °F Lo 69 °F Hi 85 °F Lo 68 °F
Detailed National Weather Service Forecast