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Regional Infrared Satellite Grinnell Weather Webcam
Updated: @ 31-Jul-2026 3:30pm - next update at 12:00am  
Summary / Temperature Wind Rain Outlook
Mostly sunny, Humid Mostly sunny, Humid
Currently: 77.8°F, Max: 78.6°F, Min: 68.3°F 77.8°F
Warmer 3.8°F than last hour.

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Feels like: 80.1°F

24-hr difference
-3.1°FColder 3.1°F than yesterday at this time.
  Today Yesterday
High: 78.6°F
3:20pm 		83.7°F
5:06pm
Low: 68.3°F
1:31am 		61.9°F
6:04am
Wind from SSW SSW
7.5
Gust:
 6 mph
3 Bft - Gentle Breeze
Today: 17.3 mph 3:21pm
Gust Month: 42.6 mph July 2
Rain Today: 1.34 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
Storm Rain: 0.04 in
This Month: 5.66 in
Season Total: 25.69 in
9 rain days in July.
Tonight

Tonight: A chance of showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 61. Windy, with a west northwest wind 13 to 22 mph becoming north in the evening. Winds could gust as high as 34 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Chance
T-storms and
Breezy then
Showers
Likely and
Windy
Humidity & Barometer Almanac Moon
Humidity: 85 % Decreased 8.0% since last hour.
Dew Point: 72.9°F Increased 1.1°F since last hour.
Barometer: 29.708 inHg Falling 0.02 inHg/hr
Baro Trend: Falling slowly
Sunrise: 6:04am
Sunset: 8:32pm
Moonset: 8:02am
Moonrise: 9:22pm
Waning Gibbous
Waning Gibbous, Moon at 16 days in cycle
95%
Illuminated
UV Index Solar Radiation
   4.0     Medium 
High: 6.6 @ 2:43pm
448 W/m2 (52 %)
High: 1079 @  3:23pm
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. West southwest wind around 10 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms



Hi 79 °F		 NWS forecast: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. West southwest wind around 10 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
 
Tonight

Tonight: A chance of showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 61. Windy, with a west northwest wind 13 to 22 mph becoming north in the evening. Winds could gust as high as 34 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Chance
T-storms and
Breezy then
Showers
Likely and
Windy

Lo 61 °F		 NWS forecast: A chance of showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 61. Windy, with a west northwest wind 13 to 22 mph becoming north in the evening. Winds could gust as high as 34 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.