Heat Advisory HEAT ADVISORY - Poweshiek County

Regional Infrared Satellite Grinnell Weather Webcam
Updated: @ 02-Sep-2026 11:30pm - next update at 12:00am  
Summary / Temperature Wind Rain Outlook
Night time, Dry Night time, Dry
Currently: 78.5°F, Max: 92.3°F, Min: 72.3°F 78.5°F
Colder 1.6°F than last hour.

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Feels like: 81.3°F

24-hr difference
0.9°FWarmer 0.9°F than yesterday at this time.
  Today Yesterday
High: 92.3°F
5:30pm
91.8°F
4:18pm
Low: 72.3°F
7:14am
73.6°F
5:25am
 Wind from S S
3.7
Gust:
4 mph
1 Bft - Light Breeze
Today: 20 mph 5:21am
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
3 days since last rain.
Thursday

Thursday: Mostly sunny, with a high near 95. South wind 7 to 10 mph.
Mostly Sunny

Humidity & Barometer Almanac Moon
Humidity: 81 % Increased 3.0% since last hour.
Dew Point: 72.2°F Decreased 0.4°F since last hour.
Barometer: 29.873 inHg  
Baro Trend: Steady
Sunrise: 6:39am
Sunset: 7:43pm
Moonset: 2:00pm
Moonrise: 10:18pm
Waning Gibbous
Waning Gibbous, Moon at 20 days in cycle
63%
Illuminated
UV Index Solar Radiation
   0.0    None
High: 6.2 @ 12:48pm
0 W/m2 (0 %)
High: 860 @  12:47pm
 NWS Weather Forecast  - Outlook: Tonight & Thursday
Tonight

Tonight: Mostly clear, with a steady temperature around 77. South wind around 8 mph.
Mostly Clear


Lo 77 °F
NWS forecast: Mostly clear, with a steady temperature around 77. South wind around 8 mph.
 
Thursday

Thursday: Mostly sunny, with a high near 95. South wind 7 to 10 mph.
Mostly Sunny


Hi 95 °F
NWS forecast: Mostly sunny, with a high near 95. South wind 7 to 10 mph.