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: @ 05-Sep-2026 3:30am  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 74.5, Max: 79.0, Min: 73.8 74.5°F
Warmer 0.2°F than last hour.

Comfortable

Feels like: 74°F

24-hr difference
-1.8°FColder 1.8°F than yesterday at this time.
  Today Yesterday
High: 79°F
12:00am
99.5°F
2:55pm
Low: 73.8°F
4:10am
74.8°F
5:55am
 Calm SW
0
Gust:
0 mph
0 Bft - Calm
Today: 0 mph 12:00am
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
17 days since last rain.
Saturday

Saturday: Sunny
Sunny
Humidity & Barometer Almanac Moon
Humidity: 86 %  
Dew Point: 70°F Increased 0.2°F since last hour.
Barometer: 29.8 inHg  
Baro Trend: Steady
Sunrise: 6:51am
Sunset: 7:43pm
Moonrise: 12:15am
Moonset: 4:16pm
Waning Crescent
Waning Crescent, Moon at 22 days in cycle
38%
Illuminated
UV Index Solar Radiation
   0    None
High: 0 @ 12:00am
0 W/m2
High: 0 @  12:00am
 NWS Weather Forecast  - Outlook
Overnight

Overnight: Partly Cloudy
Partly Cloudy
Saturday

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

Sunday: Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And T-Storms
Sunday
Night
Sunday Night: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Labor
Day
Labor Day: Sunny
Sunny
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Lo 74 °F Hi 99 °F Lo 74 °F Hi 97 °F Lo 73 °F Hi 95 °F Lo 74 °F
Detailed National Weather Service Forecast