Heat Advisory HEAT ADVISORY - Poweshiek County

Regional Infrared Satellite Grinnell Weather Webcam
Updated: @ 09-Jun-2026 11:45am - next update at 12:00am  
Summary / Temperature Wind Rain Outlook
Sunny, Dry Sunny, Dry
Currently: 85.0°F, Max: 85.7°F, Min: 68.5°F 85°F
Warmer 1.5°F than last hour.

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Feels like: 93.0°F

24-hr difference
10.2°FWarmer 10.2°F than yesterday at this time.
  Today Yesterday
High: 85.7°F
11:38am
83.2°F
5:29pm
Low: 68.5°F
5:52am
69°F
4:08am
 Wind from E E
2.8
Gust:
4 mph
1 Bft - Light Air
Today: 8.1 mph 10:29am
Gust Month: 35.0 mph June 6
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0.15 in
Storm Rain: 0 in
This Month: 1.19 in
Season Total: 16.21 in
5 rain days in June.
Tonight

Tonight: A slight chance of showers and thunderstorms between 11pm and 3am.  Partly cloudy, with a low around 73. South wind 8 to 13 mph, with gusts as high as 22 mph.  Chance of precipitation is 20%.
Slight Chance
T-storms

Humidity & Barometer Almanac Moon
Humidity: 67 % Decreased 9.0% since last hour.
Dew Point: 72.8°F Decreased 2.2°F since last hour.
Barometer: 29.904 inHg Falling 0.01  inHg/hr
Baro Trend: Steady
Sunrise: 5:36am
Sunset: 8:45pm
Moonrise: 1:50am
Moonset: 2:29pm
Waning Crescent
Waning Crescent, Moon at 23 days in cycle
37%
Illuminated
UV Index Solar Radiation
   7.6     High 
High: 7.6 @ 11:44am
846 W/m2 (88 %)
High: 863 @  11:38am
 NWS Weather Forecast  - Outlook: Today & Tonight
Today

Today: Mostly sunny, with a high near 91. Heat index values as high as 100. South wind 5 to 9 mph.
Mostly Sunny



Hi 91 °F
NWS forecast: Mostly sunny, with a high near 91. Heat index values as high as 100. South wind 5 to 9 mph.
 
Tonight

Tonight: A slight chance of showers and thunderstorms between 11pm and 3am.  Partly cloudy, with a low around 73. South wind 8 to 13 mph, with gusts as high as 22 mph.  Chance of precipitation is 20%.
Slight Chance
T-storms


Lo 73 °F
NWS forecast: A slight chance of showers and thunderstorms between 11pm and 3am. Partly cloudy, with a low around 73. South wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.