Navigation

External Links

Alerts

Poweshiek County
 Details for Poweshiek County Heat Advisory

Style Options



Widescreen:
|

Heat Advisory HEAT ADVISORY - Poweshiek County

Regional Infrared Satellite Grinnell Weather Webcam
Updated: @ 30-Aug-2026 11:50pm - next update at 12:00am  
Summary / Temperature Wind Rain Outlook
Night time, Dry Night time, Dry
Currently: 76.8°F, Max: 82.6°F, Min: 71.3°F 76.8°F
Colder 0.9°F than last hour.

---

Feels like: 78.4°F

24-hr difference
2.9°FWarmer 2.9°F than yesterday at this time.
  Today Yesterday
High: 82.6°F
3:48pm 		80°F
6:07pm
Low: 71.3°F
3:58am 		63.5°F
5:45am
Wind from S S
5.7
Gust:
 4 mph
2 Bft - Light Breeze
Today: 23 mph 9:40am
Gust Month: 38.0 mph August 13
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0.27 in
Storm Rain: 0 in
This Month: 4.93 in
Season Total: 30.66 in
15 rain days in August.
Monday

Monday: A slight chance of showers between noon and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Heat index values as high as 100. South southwest wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Mostly Sunny
then Slight
Chance
T-storms
Humidity & Barometer Almanac Moon
Humidity: 82 % Decreased 1.0% since last hour.
Dew Point: 70.9°F Decreased 1.3°F since last hour.
Barometer: 29.846 inHg  
Baro Trend: Steady
Sunrise: 6:36am
Sunset: 7:48pm
Moonset: 10:22am
Moonrise: 8:51pm
Waning Gibbous
Waning Gibbous, Moon at 17 days in cycle
90%
Illuminated
UV Index Solar Radiation
   0.0    None
High: 4.8 @ 3:00pm
0 W/m2 (0 %)
High: 879 @  3:00pm
 NWS Weather Forecast  - Outlook: Tonight & Monday
Tonight

Tonight: Partly cloudy, with a low around 73. East southeast wind 9 to 11 mph becoming south after midnight. Winds could gust as high as 18 mph.
Partly Cloudy


Lo 73 °F		 NWS forecast: Partly cloudy, with a low around 73. East southeast wind 9 to 11 mph becoming south after midnight. Winds could gust as high as 18 mph.
 
Monday

Monday: A slight chance of showers between noon and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Heat index values as high as 100. South southwest wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Mostly Sunny
then Slight
Chance
T-storms

Hi 94 °F		 NWS forecast: A slight chance of showers between noon and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Heat index values as high as 100. South southwest wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.