Extreme Heat Warning EXTREME HEAT WARNING - Grundy County

NWS North Mississippi Valley Regional Radar WU North Central Satellite
Radar/Satellite images courtesy of NOAA/NWS and Weather Underground.
spacer
Updated: @ 01-Jul-2026 11:45am - next update at 6:00pm  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 90.1, Max: 90.6, Min: 76.0 90.1°F
Warmer 2.0°F than last hour.

---

Feels like: 104°F

24-hr difference
0.2°FWarmer 0.2°F than yesterday at this time.
  Today Yesterday
High: 90.6°F
11:34am
93.5°F
3:06pm
Low: 76.0°F
5:13am
75.4°F
5:29am
 Wind from WSW WSW
4.2
Gust:
3.0 mph
1 Bft - Light Breeze
Today: 12.0 mph 10:11am
Gust Month: 12.0 mph July 1
Rain Today: 0.00 in
Rain Rate (/hr): 0.000 in
Rain Yesterday: 0.00 in
Storm Rain: 0.00 in
This Month: 0.00 in
Season Total: 27.24 in
6 days since last rain.
Tonight

Tonight: Mostly Clear
Mostly Clear
Humidity & Barometer Almanac Moon
Humidity: 66 % Decreased 5.0% since last hour.
Dew Point: 77.2°F Decreased 0.3°F since last hour.
Barometer: 29.928 inHg Falling 0.01  inHg/hr
Baro Trend: Steady
Sunrise: 5:23am
Sunset: 8:30pm
Moonset: 6:37am
Moonrise: 9:33pm
Waning Gibbous
Waning Gibbous, Moon at 16 days in cycle
97%
Illuminated
UV Index Solar Radiation
   5.3     Medium 
High: 5.3 @ 11:38am
835 W/m2 (87 %)
High: 835 @  11:43am
 NWS Weather Forecast  - Outlook: Today & Tonight
Today

Today: Sunny
Sunny

Hi 93 °F
NWS forecast: Sunny, with a high near 93. Heat index values as high as 105. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
 
Tonight

Tonight: Mostly Clear
Mostly Clear

Lo 77 °F
NWS forecast: Mostly clear, with a low around 77. Heat index values as high as 101. South southwest wind 10 to 15 mph.