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Poweshiek County
 Details for Poweshiek County Dense Fog Advisory  +1 additional alert

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Dense Fog Advisory DENSE FOG ADVISORY - Poweshiek County
Flood Watch FLOOD WATCH - Poweshiek County

Regional Infrared Satellite Grinnell Weather Webcam
Updated: @ 17-Sep-2026 3:10am - next update at 12:00am  
Summary / Temperature Wind Rain Outlook
Night time, Stopped raining Night time, Stopped raining
Currently: 67.0°F, Max: 67.5°F, Min: 66.7°F 67°F
Colder 0.4°F than last hour.

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Feels like: 67.0°F

24-hr difference
7.5°FWarmer 7.5°F than yesterday at this time.
  Today Yesterday
High: 67.5°F
2:36am 		68.6°F
5:30pm
Low: 66.7°F
12:00am 		59.2°F
1:19am
Wind from NE NE
2.2
Gust:
 3 mph
1 Bft - Light Air
Today: 6 mph 2:51am
Gust Month: 36.0 mph September 8
Rain Today: 0.01 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0.01 in
Storm Rain: 0 in
This Month: 4.52 in
Season Total: 35.18 in
8 rain days in September.
Thursday

Thursday: A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and noon. Patchy fog before 11am. Otherwise, cloudy, with a high near 75. Light and variable wind. Chance of precipitation is 40%. New precipitation amounts between a quarter and half of an inch possible.
Chance
T-storms and
Patchy Fog
then Mostly
Cloudy
Humidity & Barometer Almanac Moon
Humidity: 95 %  
Dew Point: 65.5°F Decreased 0.4°F since last hour.
Barometer: 30.176 inHg Falling 0.01 inHg/hr
Baro Trend: Steady
Sunrise: 6:54am
Sunset: 7:19pm
Moonrise: 2:01pm
Moonset: 9:44pm
Waxing Crescent
Waxing Crescent, Moon at 6 days in cycle
36%
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 & Thursday
Overnight

Overnight: Showers and thunderstorms likely before 4am, then showers likely and possibly a thunderstorm after 4am. Some of the storms could produce heavy rainfall. Patchy fog. Otherwise, cloudy, with a steady temperature around 66. East northeast wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Heavy Rain
and Patchy
Fog


Lo 66 °F		 NWS forecast: Showers and thunderstorms likely before 4am, then showers likely and possibly a thunderstorm after 4am. Some of the storms could produce heavy rainfall. Patchy fog. Otherwise, cloudy, with a steady temperature around 66. East northeast wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
 
Thursday

Thursday: A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and noon. Patchy fog before 11am. Otherwise, cloudy, with a high near 75. Light and variable wind. Chance of precipitation is 40%. New precipitation amounts between a quarter and half of an inch possible.
Chance
T-storms and
Patchy Fog
then Mostly
Cloudy

Hi 75 °F		 NWS forecast: A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and noon. Patchy fog before 11am. Otherwise, cloudy, with a high near 75. Light and variable wind. Chance of precipitation is 40%. New precipitation amounts between a quarter and half of an inch possible.