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Flood Watch FLOOD WATCH - Poweshiek County

Regional Infrared Satellite Grinnell Weather Webcam
Updated: @ 13-Aug-2026 12:00pm - next update at 12:00am  
Summary / Temperature Wind Rain Outlook
Overcast and gloomy, Stopped raining Overcast and gloomy, Stopped raining
Currently: 71.1°F, Max: 73.1°F, Min: 69.4°F 71.1°F
Warmer 0.8°F than last hour.

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Feels like: 66.0°F

24-hr difference
0°F 
  Today Yesterday
High: 73.1°F
7:44am 		82.7°F
4:52pm
Low: 69.4°F
3:14am 		70.5°F
11:13am
Wind from ENE ENE
0.9
Gust:
 2 mph
1 Bft - Calm
Today: 38 mph 7:51am
Gust Month: 38.0 mph August 13
Rain Today: 1.15 in
Rain Rate (/hr): 0.09 in
Rain Yesterday: 0.04 in
Storm Rain: 1.19 in
This Month: 3.51 in
Season Total: 29.24 in
9 rain days in August.
Tonight

Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 66. East wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Chance
T-storms then
Showers
Likely
Humidity & Barometer Almanac Moon
Humidity: 95 %  
Dew Point: 69.6°F Increased 0.8°F since last hour.
Barometer: 29.833 inHg Rising 0.01 inHg/hr
Baro Trend: Steady
Sunrise: 6:17am
Sunset: 8:16pm
Moonrise: 7:15am
Moonset: 8:18pm
Waxing Crescent
Waxing Crescent, Moon at 1 days in cycle
1%
Illuminated
UV Index Solar Radiation
   0.9     Low 
High: 1.0 @ 11:38am
118 W/m2 (13 %)
High: 141 @  11:40am
 NWS Weather Forecast  - Outlook: Today & Tonight
Today

Today: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 77. East wind 8 to 11 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Showers
Likely


Hi 77 °F		 NWS forecast: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 77. East wind 8 to 11 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
 
Tonight

Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 66. East wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Chance
T-storms then
Showers
Likely

Lo 66 °F		 NWS forecast: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 66. East wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.