Weather
Weather and climate are critical factors in Iowa's crop production. Find more information on weather-related tools, weather/climate outlooks, and resources for managing through weather events like flooding, windstorms, hail, and drought.
Weather Maps
Daily Soil Temperatures
YTD Accumulated Precipitation in Ames
Departure from normal precipitation from last 7 days across Iowa
24 Hour Precipitation Across Iowa
What in the Weather?
Wish you could understand the weather better? Join Dan Fillius, Iowa State University Extension Horticulture Field Specialist, Madelynn Wuestenberg, ISU Extension Ag. Climatology Specialist, and Dr. Justin Glisan, Iowa’s State Climatologist, as they discuss what is happening in the world of Iowa weather.
Timely Insights on Weather
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June 19, 2026Content Author
Question: What is driving the severe weather in Iowa this week?It is June 19, 2026, and another round of storms moved through the state earlier this week, bringing high winds and rain. This is yet another storm that has impacted the state in the past week.
So far in June, Iowa has experienced
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May 29, 2026Content Author
Residual soil nitrogen levels last year were relatively high and extremely variable from field to field. That means the Late Spring Nitrate Test (LSNT) can generate a large return on investment for in-season nitrogen decision-making this year. For those making in-season nitrogen applications, there may be significant opportunity for savings on fertilizer inputs.
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May 29, 2026Content Author
With the recent dry conditions and highly variable forecasted chances for rainfall for parts of Iowa just as postemergence herbicide applications begin, questions often come up regarding use of residual herbicides and efficacy of postemergence applications during these conditions.