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 Details for Grundy County Extreme Heat Warning

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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.
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Updated: @ 27-Jul-2026 2:50pm - next update at 6:00pm  
Summary / Temperature Wind Rain Outlook
Light rain Light rain
Currently: 75.0, Max: 87.6, Min: 74.8 75.0°F
Colder 8.6°F than last hour.

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Feels like: 74°F

24-hr difference
-13.8°FColder 13.8°F than yesterday at this time.
  Today Yesterday
High: 87.6°F
11:22am 		89.8°F
4:00pm
Low: 74.8°F
2:33pm 		70.5°F
4:52am
Wind from E E
2.5
Gust:
 2.0 mph
1 Bft - Light Air
Today: 18.4 mph 11:12am
Gust Month: 26.0 mph July 3
Rain Today: 0.12 in
Rain Rate (/hr): 0.040 in
Rain Yesterday: 0.00 in
Storm Rain: 0.12 in
This Month: 3.07 in
Season Total: 30.31 in
7 rain days in July.
Tonight

Tonight: Slight Chance Showers And Thunderstorms then Partly Cloudy
Slight Chance Showers And T-Storms then Partly Cloudy
Humidity & Barometer Almanac Moon
Humidity: 93 % Increased 9.0% since last hour.
Dew Point: 72.8°F Decreased 5.5°F since last hour.
Barometer: 29.677 inHg Rising 0.01 inHg/hr
Baro Trend: Steady
Sunrise: 5:43am
Sunset: 8:16pm
Moonset: 3:25am
Moonrise: 6:50pm
Waxing Gibbous
Waxing Gibbous, Moon at 13 days in cycle
97%
Illuminated
UV Index Solar Radiation
   0.0    None
High: 4.0 @ 11:06am
70 W/m2 (8 %)
High: 777 @  10:27am
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms

Hi 94 °F		 NWS forecast: A slight chance of showers and thunderstorms before 4pm. Mostly sunny. High near 94, with temperatures falling to around 91 in the afternoon. Heat index values as high as 113. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
 
Tonight

Tonight: Slight Chance Showers And Thunderstorms then Partly Cloudy
Slight Chance Showers And T-Storms then Partly Cloudy

Lo 70 °F		 NWS forecast: A slight chance of showers and thunderstorms between 8pm and 11pm. Partly cloudy. Low around 70, with temperatures rising to around 72 overnight. Heat index values as high as 106. West northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.