Heat Advisory HEAT ADVISORY - Poweshiek County

Regional Infrared Satellite Grinnell Weather Webcam
Updated: @ 02-Sep-2026 12:45am - next update at 12:00am  
Summary / Temperature Wind Rain Outlook
Night time, Dry Night time, Dry
Currently: 77.3°F, Max: 77.7°F, Min: 77.3°F 77.3°F
Colder 0.4°F than last hour.

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Feels like: 79.1°F

24-hr difference
-0.6°FColder 0.6°F than yesterday at this time.
  Today Yesterday
High: 77.7°F
12:30am
91.8°F
4:18pm
Low: 77.3°F
12:06am
73.6°F
5:25am
 Wind from S S
4.4
Gust:
5 mph
2 Bft - Light Breeze
Today: 10.4 mph 12:23am
Gust Month: 16.0 mph September 1
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
3 days since last rain.
Wednesday

Wednesday: Sunny, with a high near 92. South southwest wind 6 to 10 mph.
Sunny

Humidity & Barometer Almanac Moon
Humidity: 75 % Decreased 1.0% since last hour.
Dew Point: 68.8°F Decreased 0.7°F since last hour.
Barometer: 29.908 inHg  
Baro Trend: Steady
Sunrise: 6:38am
Sunset: 7:45pm
Moonset: 12:47pm
Moonrise: 9:43pm
Waning Gibbous
Waning Gibbous, Moon at 19 days in cycle
73%
Illuminated
UV Index Solar Radiation
   0.0    None
High: 0.0 @ 12:00am
0 W/m2 (0 %)
High: 0 @  12:00am
 NWS Weather Forecast  - Outlook: Overnight & Wednesday
Overnight

Overnight: Clear early, then becoming mostly cloudy, with a low around 73. South wind around 8 mph.
Mostly Cloudy


Lo 73 °F
NWS forecast: Clear early, then becoming mostly cloudy, with a low around 73. South wind around 8 mph.
 
Wednesday

Wednesday: Sunny, with a high near 92. South southwest wind 6 to 10 mph.
Sunny


Hi 92 °F
NWS forecast: Sunny, with a high near 92. South southwest wind 6 to 10 mph.