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Severe Thunderstorm Watch SEVERE THUNDERSTORM WATCH - Poweshiek County

Regional Infrared Satellite Grinnell Weather Webcam
Updated: @ 15-May-2026 11:20pm - next update at 12:00am  
Summary / Temperature Wind Rain Outlook
Night time, Stopped raining Night time, Stopped raining
Currently: 70.6°F, Max: 85.7°F, Min: 56.2°F 70.6°F
Colder 2.3°F than last hour.

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Feels like: 74.7°F

24-hr difference
5.7°FWarmer 5.7°F than yesterday at this time.
  Today Yesterday
High: 85.7°F
3:49pm 		77.2°F
3:41pm
Low: 56.2°F
6:06am 		45.5°F
5:09am
Calm WNW
0
Gust:
 0 mph
1 Bft - Calm
Today: 32.2 mph 10:04pm
Gust Month: 32.0 mph May 15
Rain Today: 0.01 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
Storm Rain: 0 in
This Month: 0.18 in
Season Total: 11.84 in
3 rain days in May.
Saturday

Saturday: A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 84. Calm wind becoming east southeast 5 to 8 mph in the morning.
Mostly Sunny
then Slight
Chance
T-storms
Humidity & Barometer Almanac Moon
Humidity: 66 % Decreased 4.0% since last hour.
Dew Point: 58.7°F Decreased 4.1°F since last hour.
Barometer: 29.643 inHg Falling 0.01 inHg/hr
Baro Trend: Falling slowly
Sunrise: 5:50am
Sunset: 8:25pm
Moonrise: 5:12am
Moonset: 7:26pm
Waning Crescent
Waning Crescent, Moon at 28 days in cycle
1%
Illuminated
UV Index Solar Radiation
   0.0    None
High: 6.1 @ 12:51pm
0 W/m2 (0 %)
High: 872 @  1:16pm
 NWS Weather Forecast  - Outlook: Tonight & Saturday
Tonight

Tonight: Showers and thunderstorms likely, mainly before 3am. Some of the storms could be severe. Mostly cloudy, with a low around 60. South southwest wind 5 to 10 mph becoming light south southeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Severe
T-Storms



Lo 60 °F		 NWS forecast: Showers and thunderstorms likely, mainly before 3am. Some of the storms could be severe. Mostly cloudy, with a low around 60. South southwest wind 5 to 10 mph becoming light south southeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
 
Saturday

Saturday: A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 84. Calm wind becoming east southeast 5 to 8 mph in the morning.
Mostly Sunny
then Slight
Chance
T-storms


Hi 84 °F		 NWS forecast: A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 84. Calm wind becoming east southeast 5 to 8 mph in the morning.