This briefing focuses on agriculture-relevant weather across major U.S. growing regions. It synthesizes broad patterns typical for late March and provides a practical, region-by-region planning outlook for the next seven days. Always check your local National Weather Service office or trusted ag-weather provider for site-specific details and rapidly changing hazards.

Past 24 hours: National agricultural weather recap

Late-March variability continued across the country. Many Northern Tier locations dealt with chilly air and pockets of wintry mix in higher elevations, while the Central and Southern states saw springlike swings with scattered showers and thunderstorms near frontal boundaries. Gusty winds were common in parts of the High Plains and interior West, and coastal Northwest areas observed light to moderate precipitation with mountain snow. Across the Southeast and Gulf Coast, warm, humid intervals were interrupted by passing showers and rumbles of thunder. Field conditions ranged from muddy where precipitation clustered to workable where winds and breaks in cloud cover allowed brief drying.

  • Pacific Northwest: Intermittent rain west of the Cascades; snow over higher terrain; cool.
  • California Central Valley: Predominantly dry; localized morning fog in low spots; breezy at times.
  • Southwest deserts: Dry and warm; occasional afternoon breezes.
  • Northern Rockies/High Plains: Chilly with scattered light snow or mixed precipitation in spots; brisk winds.
  • Central/Southern Plains: Variable; breezy and dry west, with scattered showers/storms east of the dryline/frontal zones.
  • Midwest/Corn Belt: Cloud increases and periodic light to moderate precipitation; cool north, seasonable south.
  • Delta/Mid-South: Rounds of showers and a few thunderstorms; brief heavy downpours locally.
  • Southeast: Warm, humid intervals; scattered showers/storms along and ahead of fronts.
  • Northeast/Interior Appalachians: Cool; light rain or a rain/snow mix in higher elevations.
  • Florida Peninsula: Mostly warm with isolated showers; breezy along coasts.

Seven-day forecast and field impacts (Mar 25–Mar 31)

Pattern at a glance

  • Two main systems are favored to traverse the country: one mid-to-late week, another around the weekend into early next week. Expect a familiar sequence—onshore precipitation in the Pacific Northwest; mountain snow in the West; strengthening winds across the High Plains; showers and strong thunderstorms from the Southern Plains and Mid-South into the Southeast; and a cool-down following frontal passages into the Midwest and East.
  • Severe weather risk windows typically open in late March across the Southern Plains, Ark-La-Tex, Lower Mississippi Valley, and parts of the Southeast during and just ahead of frontal passages. Be prepared for damaging winds, hail, and brief tornadoes in these corridors.
  • Late-season frost or a light freeze remains possible behind fronts in the Northern Plains, Upper Midwest, Interior Northeast, and higher Appalachian valleys—particularly on clear, calm nights.
  • Winds will be a recurring issue in the interior West and Central/High Plains, periodically elevating wildfire danger and complicating spraying. Short, breezy drying windows are likely between systems.
  • California and much of the interior Southwest trend mostly dry with occasional breezy spells—favorable for fieldwork but increasing early-season irrigation needs.

Regional outlook and agricultural impacts

Pacific Northwest (WA, OR, ID)

Frequent light to moderate coastal/valley rain with higher-elevation snow as Pacific impulses arrive. Short breaks bring partial drying but saturated pockets linger near the coast and windward slopes. Fieldwork windows are brief; orchard/vineyard operators should watch for cold, calm nights in interior valleys that could allow patchy frost. Snowmelt rates remain modest given cool temperatures.

California (Central Valley, coastal valleys, Sierra foothills)

Predominantly dry with seasonable to slightly warm afternoons. North winds may periodically increase, accelerating drying and raising fire danger in cured grasses. Orchard operations and spring tillage/planting generally favorable; monitor for localized morning fog and low humidity during afternoon breezes. Sierra snow showers remain limited and elevation-dependent.

Southwest Deserts (AZ, NM desert valleys)

Warm, dry pattern. Afternoon gusts on several days could reduce spray efficacy and raise blowing dust risk in open, dry fields. Irrigation demand increases; monitor heat stress on recent transplants and livestock during warmer afternoons.

Northern Rockies and High Plains (MT, WY, western Dakotas)

Alternating cool shots and brief mild breaks. Light snow or wintry mix is possible with passing disturbances, especially higher terrain and along the Canadian border. Windy intervals are likely, elevating livestock stress and reducing spray windows. Calving operations should prepare for wind chill management on the coldest, breeziest days.

Central and Southern Plains (KS, OK, TX Panhandle and Rolling Plains)

Classic spring contrasts: dry, windy days west of the dryline raise fire weather and evaporative demand; episodes of showers and thunderstorms east bring localized downpours, small hail, and gusty winds. Winter wheat that has broken dormancy is vulnerable to a post-frontal light freeze on clear nights—monitor canopy temperatures. Spraying will be challenged by wind; plan for short, calmer morning windows.

Midwest and Corn Belt (MN, IA, WI, IL, IN, MI, OH, MO)

Two rounds of precipitation likely—one mid-to-late week, another near the weekend/early next week—separated by a brief drying, breezy interval. Northern counties may see mixed precipitation at times early and late in the period. Expect periodic mud and ponding in low-lying fields; opportunities for tillage are most likely during the interludes, especially in better-drained western and southern zones.

Delta and Mid-South (AR, LA, MS, western TN, western KY)

Multiple rounds of showers and thunderstorms associated with advancing fronts. Localized heavy rain, frequent lightning, and severe wind/hail are possible. Planting windows remain narrow; drainage and residue management will help reduce delays. Brief drier breaks can be breezy and humid, supporting rapid topsoil drying.

Southeast (AL, GA, SC, NC, VA Piedmont/Coastal Plain)

Frontally driven showers and thunderstorms on several days, interspersed with warm, humid stretches and cooler, drier air behind fronts. Disease pressure on small grains and early vegetables increases under repeated dew and rainfall; align fungicide applications with the better spray windows between events. Spotty severe storms cannot be ruled out, especially closer to the Gulf and coastal plain.

Florida Peninsula

Mostly warm with isolated to scattered showers, greatest near sea-breeze convergence and frontal boundaries. Good field access overall; irrigation remains key for citrus and row crops. Watch for brief gusty seabreeze storms that could disrupt afternoon operations.

Northeast and Interior Appalachians (PA, NY, New England, WV highlands)

Cool to seasonable with periodic light to moderate precipitation; wintry mix possible in interior high terrain. Orchard and vineyard interests should maintain frost protection readiness on clear, calm nights. Fieldwork windows improve late in the period if a drier, cooler high settles in.

Day-by-day planner (Wed Mar 25 – Tue Mar 31)

  • Wed (Mar 25): Onshore precipitation in the Pacific Northwest; breezy, dry California and interior Southwest. Strengthening southerly flow from TX into the Mid-South fosters showers/storms east of the dryline; windy and dry western High Plains. Light mixed precip possible Northern Plains/Upper Midwest; mild Southeast with scattered showers.
  • Thu (Mar 26): Central U.S. trough deepens. Thunderstorms expand from the Southern Plains through the Lower/Mid Mississippi Valley; some may be severe. Breezy, cooler air filters into the Northern Plains and Upper Midwest with light rain/snow mix north. Continued showery Northwest; largely dry California.
  • Fri (Mar 27): Frontal band sweeps into the Ohio/Tennessee Valleys and Southeast with widespread showers/storms. Clearing and cooler behind the front in the Plains; gusty winds ease late. Patchy frost possible in the Northern Plains/Upper Midwest on clear, calm overnight periods.
  • Sat (Mar 28): Eastward-moving system reaches the Mid-Atlantic/Northeast with rain; interior high terrain could see a mix. Intermountain West sees the next weak impulse with clouds and light mountain snow. Plains experience a short, breezy drying window—best opportunity for limited fieldwork west and central areas.
  • Sun (Mar 29): Another wave organizes in the West; rain/snow returns to the Pacific Northwest and northern Rockies. Increasing clouds High Plains. Gulf return flow re-establishes moisture into TX/LA with showers developing late.
  • Mon (Mar 30): Showers/storms redevelop from the Southern Plains into the Mid-South; locally heavy rain possible. Breezy/windy ahead of the front; cooler air returns to the northern tier. Mostly dry California and Southwest; unsettled Northwest continues.
  • Tue (Mar 31): Frontal rain and thunderstorms press into the Ohio/Tennessee Valleys and Southeast; cooler, drier air spreads into the Plains and Upper Midwest with patchy frost risk where skies clear. Showery Northeast late.

Fieldwork windows at a glance

  • Best chances: California Central Valley; interior Southwest (most days, watch wind). Brief interludes in the Central/High Plains and parts of the western Corn Belt between systems (Sat and again after frontal passage).
  • Limited by precipitation: Pacific Northwest coast/valleys, Delta/Mid-South, Southeast on frontal days, Ohio/Tennessee Valleys mid-to-late week and early next week, Northeast around weekend/early week system.
  • Wind-limited spraying: High Plains and interior West on multiple days; Southern Plains and Mid-South ahead of fronts.

Risk watchlist for producers

  • Severe thunderstorms: Southern Plains to Lower/Mid Mississippi Valley and parts of the Southeast during and just ahead of frontal passages (Thu–Fri, Mon–Tue). Prepare for hail/wind and brief tornado potential.
  • Late frost/freeze: Northern Plains, Upper Midwest, interior Northeast, and Appalachian valleys after frontal passages, particularly under clear, calm nighttime conditions (Fri night through early next week).
  • High fire danger: Western KS/OK/TX Panhandle and interior Southwest on dry, windy days.
  • Livestock stress: Windy, chilly periods in the Northern Rockies/High Plains; provide windbreaks and dry bedding during mixed precip events.
  • Soil compaction/ponding: Delta, Mid-South, and portions of the Corn Belt where repeated showers occur; delay heavy equipment operations until topsoil firms.
  • Disease pressure: Southeast and Delta small grains/vegetables amid frequent dews and showers; time protective sprays in brief calm/dry windows.

Management notes

  • Planting and tillage: Target interludes between systems; prioritize well-drained fields first. In windy regions, aim for early morning spray windows before mixing increases.
  • Irrigation: Southwest/California users should anticipate higher evapotranspiration on breezy, warm days; verify distribution uniformity after wind events.
  • Frost readiness: For orchards/vineyards in the interior West, Upper Midwest, and Northeast, stage covers, wind machines, and water sources where feasible; monitor canopy-level temps, not just 2-m air readings.
  • Drainage: Clear inlets/outlets now in the Delta/Mid-South and Ohio/Tennessee Valleys to reduce fieldwork delays from repeated rounds of rain.
  • Livestock: Provide shelter from wind and access to dry ground during mixed-precip events; monitor calves closely during cold, breezy nights.

Forecast confidence

Moderate. Confidence is higher on the overall pattern—two systems crossing the country and associated regional impacts—than on day-to-day placement and intensity of thunderstorms. Local outcomes will vary widely around frontal zones and convective complexes.

Stay informed

For location-specific timing and hazard statements, follow your local National Weather Service office, state extension ag-weather program, or trusted private forecast provider. Reassess plans daily in active thunderstorm corridors and where winds frequently exceed spray thresholds.