Heat Advisory HEAT ADVISORY - Poweshiek County

Regional Infrared Satellite Grinnell Weather Webcam
Updated: @ 03-Sep-2026 11:25pm - next update at 12:00am  
Summary / Temperature Wind Rain Outlook
Night time, Dry Night time, Dry
Currently: 80.7°F, Max: 93.1°F, Min: 75.6°F 80.7°F
Colder 1.0°F than last hour.

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Feels like: 85.0°F

24-hr difference
2.1°FWarmer 2.1°F than yesterday at this time.
  Today Yesterday
High: 93.1°F
4:16pm
92.3°F
5:30pm
Low: 75.6°F
4:25am
72.3°F
7:14am
 Wind from S S
3.7
Gust:
3 mph
2 Bft - Light Breeze
Today: 17.3 mph 5:06pm
Gust Month: 20.0 mph September 2
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
Storm Rain: 0 in
This Month: 0 in
Season Total: 30.66 in
4 days since last rain.
Friday

Friday: Sunny, with a high near 93. Heat index values as high as 100. South southwest wind 6 to 8 mph.
Sunny

Humidity & Barometer Almanac Moon
Humidity: 75 % Increased 2.0% since last hour.
Dew Point: 72°F Decreased 0.2°F since last hour.
Barometer: 29.871 inHg Rising 0.01  inHg/hr
Baro Trend: Steady
Sunrise: 6:40am
Sunset: 7:41pm
Moonset: 3:10pm
Moonrise: 11:03pm
Waning Gibbous
Waning Gibbous, Moon at 21 days in cycle
52%
Illuminated
UV Index Solar Radiation
   0.0    None
High: 6.3 @ 1:00pm
0 W/m2 (0 %)
High: 974 @  12:12pm
 NWS Weather Forecast  - Outlook: Tonight & Friday
Tonight

Tonight: Clear, with a low around 73. South wind around 8 mph.
Clear


Lo 73 °F
NWS forecast: Clear, with a low around 73. South wind around 8 mph.
 
Friday

Friday: Sunny, with a high near 93. Heat index values as high as 100. South southwest wind 6 to 8 mph.
Sunny


Hi 93 °F
NWS forecast: Sunny, with a high near 93. Heat index values as high as 100. South southwest wind 6 to 8 mph.