Severe Thunderstorm Watch SEVERE THUNDERSTORM WATCH - Poweshiek County

Regional Infrared Satellite Grinnell Weather Webcam
Updated: @ 15-May-2026 10:05pm - next update at 12:00am  
Summary / Temperature Wind Rain Outlook
Night time, Dry Night time, Dry
Currently: 77.5°F, Max: 85.7°F, Min: 56.2°F 77.5°F
Colder 1.0°F than last hour.

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Feels like: 79.7°F

24-hr difference
9.9°FWarmer 9.9°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
 Wind from SSW SSW
22.8
Gust:
20 mph
4 Bft - Fresh Breeze
Today: 32 mph 10:04pm
Gust Month: 32.0 mph May 15
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
Storm Rain: 0 in
This Month: 0.17 in
Season Total: 11.83 in
2 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: 65 % Increased 4.0% since last hour.
Dew Point: 64.8°F Increased 0.9°F since last hour.
Barometer: 29.652 inHg Rising 0.03  inHg/hr
Baro Trend: Rising 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, mainly before 2am. Some of the storms could be severe.  Low around 60. South wind 5 to 10 mph becoming light and variable  after midnight. Winds could gust as high as 20 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Severe
T-Storms



Lo 60 °F
NWS forecast: Showers and thunderstorms, mainly before 2am. Some of the storms could be severe. Low around 60. South wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
 
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.