Flood Watch FLOOD WATCH - Poweshiek County

Regional Infrared Satellite Grinnell Weather Webcam
Updated: @ 15-Aug-2026 2:40am - next update at 12:00am  
Summary / Temperature Wind Rain Outlook
Night time, Humid Night time, Humid
Currently: 72.4°F, Max: 72.4°F, Min: 72.1°F 72.4°F
Warmer 0.1°F than last hour.

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Feels like: 68.5°F

24-hr difference
0.8°FWarmer 0.8°F than yesterday at this time.
  Today Yesterday
High: 72.4°F
12:00am
75.4°F
3:41pm
Low: 72.1°F
12:41am
70°F
7:50am
 Wind from E E
5.1
Gust:
4 mph
2 Bft - Light Breeze
Today: 12 mph 12:13am
Gust Month: 38.0 mph August 13
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0.78 in
Storm Rain: 2.01 in
This Month: 4.33 in
Season Total: 30.06 in
10 rain days in August.
Saturday

Saturday: A chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 5pm.  Patchy fog before 10am.  Otherwise, mostly cloudy, with a high near 83. Light and variable wind.  Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms and
Patchy Fog
Humidity & Barometer Almanac Moon
Humidity: 94 %  
Dew Point: 70.6°F Increased 0.1°F since last hour.
Barometer: 30.026 inHg Rising 0.01  inHg/hr
Baro Trend: Steady
Sunrise: 6:19am
Sunset: 8:13pm
Moonrise: 9:40am
Moonset: 9:06pm
Waxing Crescent
Waxing Crescent, Moon at 2 days in cycle
8%
Illuminated
UV Index Solar Radiation
   0.0    None
High: 0.0 @ 12:00am
0 W/m2 (0 %)
High: 0 @  12:00am
 NWS Weather Forecast  - Outlook: Overnight & Saturday
Overnight

Overnight: A 50 percent chance of showers and thunderstorms, mainly after 3am. Some of the storms could produce heavy rainfall.  Patchy fog.  Otherwise, cloudy, with a steady temperature around 72. East wind around 7 mph.  New rainfall amounts between a half and three quarters of an inch possible.
Heavy Rain
and Patchy
Fog

Lo 72 °F
NWS forecast: A 50 percent chance of showers and thunderstorms, mainly after 3am. Some of the storms could produce heavy rainfall. Patchy fog. Otherwise, cloudy, with a steady temperature around 72. East wind around 7 mph. New rainfall amounts between a half and three quarters of an inch possible.
 
Saturday

Saturday: A chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 5pm.  Patchy fog before 10am.  Otherwise, mostly cloudy, with a high near 83. Light and variable wind.  Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms and
Patchy Fog

Hi 83 °F
NWS forecast: A chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 5pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 83. Light and variable wind. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.