Ohio Mesonet Expanded to All State Counties

The Ohio State University Extension has committed to installing a weather station in every one of Ohio's 88 counties.

Updated on Sept. 29, 2026 in Current Conditions

Isometric editorial illustration of a metal weather monitoring tower in an agricultural field, depicting infrastructure for rural climate data collection. — The Ohio State University Extension is expanding its Ohio Mesonet network, aiming to install specialized weather monitoring stations in all 88 state counties. AI Illustration. Upload story photo >

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Do you rely on public weather monitoring data to make management decisions for your farm?

Ohio State University Extension operates the Ohio Mesonet, a network designed to provide real-time agricultural weather data. The organization plans to install a monitoring station in each of the state's 88 counties.

Why it matters

The network aims to assist agricultural producers in navigating extreme weather and field conditions. By providing precise data, the system helps farmers manage critical tasks like spray drift prevention and drought monitoring.

The Ohio Mesonet network provides real-time temperature and humidity data across 88 counties in Ohio. The system utilizes multi-level sensors to inform growing degree day tools for agricultural planning.

The players

Ohio State University Extension

This organization is an outreach arm of Ohio State University that provides research-based knowledge and educational programs to the public.

Ohio Mesonet

This is a network of professional-grade weather stations that collects and provides real-time atmospheric data for agricultural and environmental monitoring.

The details

The Ohio Mesonet utilizes multiple levels of temperature and humidity sensors to collect data for local agriculture. This information is integrated into specialized growing degree day tools to help producers make informed field decisions.

The official status of the network expansion was recorded as of September 29, 2026.

Seasonal Patterns

The Ohio Mesonet expansion follows the broader national trend of state-level institutions developing dense meteorological networks to support regional agricultural resilience, similar to those established under the National Mesonet Program. This statewide initiative marks a departure from reliance on sparse federal weather reporting in favor of hyper-local data collection.

Agricultural producers in areas where new stations are installed will gain access to more accurate data for planning pesticide applications and managing irrigation during drought conditions. Farmers can utilize these localized sensor readings to improve their daily field management and crop health strategies.

The takeaway

Access to high-resolution local weather data is becoming an essential tool for modern agricultural risk management. Producers should monitor local university bulletins to see when new sensor arrays become active in their specific county.