Heavy rains, localized tornado activity, and uneven moisture continue to shape Manitoba's 2026 growing season as harvest expands across cereals, canola, peas, and forage crops.
Manitoba farmers continue to push forward with harvest operations, but weather remains one of the biggest stories of the 2026 growing season.
According to Manitoba's latest Crop Report, variable precipitation once again impacted agricultural regions across the province during the final week of August. Rainfall amounts varied widely, with isolated thunderstorms bringing strong winds and intense downpours to some areas.
The most significant weather event occurred overnight on August 30-31, when a storm system moved through western Manitoba and Environment and Climate Change Canada confirmed at least one tornado near Elkhorn.
While precipitation from that late-August storm will be reflected in next week's reporting period, the event serves as another reminder of the challenges producers have faced throughout the growing season as they balance crop maturity, harvest timing and field conditions.
Moisture Levels Remain a Mixed Story
A look at seasonal precipitation totals shows significant differences across Manitoba.
Since May 1, large portions of the Northwest, Southwest and Interlake regions have received more than 300 millimetres of precipitation, placing many areas above long-term moisture norms. However, some localized pockets in the Interlake, Central and Eastern regions remain well below average, with seasonal moisture totals falling below 80 per cent of historical averages.
Growing conditions have also been influenced by heat accumulation. Growing Degree Day totals from May through August ranged from 1,175 to 1,638 across Manitoba, with most of southern Manitoba surpassing 1,400 GDD. Those heat units have helped advance crop development despite recurring rainfall and storm interruptions.
Cereal Harvest Gains Momentum
Winter cereal harvest is nearly complete in the Eastern and Central regions, although reported yields have generally come in slightly below average.
Spring cereal harvest has begun in most Manitoba regions, with producers continuing desiccation and swathing activities where crops have reached the appropriate stage. Early yield reports suggest crops are ranging from below average to average, particularly in the Central, Eastern and Interlake regions.
Corn development continues to progress, with most fields moving through the late milk to early dough stages as growers look ahead to the remainder of the season.
Canola Harvest Expands
Canola harvest has started in both the Central and Southwest regions and is expected to accelerate as more acres reach maturity.
Across Manitoba, the majority of canola fields are currently in the seed colour change stage, while swathing activity remains widespread.
Sunflower crops continue to develop normally, with most fields reported between the R7 and R8 growth stages.
Soybean development ranges from R5 through R7, placing many fields well into the reproductive and maturation phases. Meanwhile, pea harvest has commenced with producers reporting average yields and generally good grain quality.
Strong Forage Supplies Support Livestock Sector
One of the brighter spots in Manitoba agriculture this season has been forage production.
First-cut hay harvest is complete and second-cut operations are roughly 90 per cent finished. Some dairy producers are also wrapping up third-cut hay harvest. Yields are commonly reported as above average, and provincial assessments indicate forage inventories should be sufficient to meet winter feeding needs.
Straw baling is also progressing well, supported by grain producers making straw available for livestock operations. Current supplies appear adequate to meet anticipated demand.
Alfalfa regrowth has been strong following harvest, and most stands are entering the fall season in good condition.
Pastures Continue to Benefit From Rainfall
Pasture conditions remain generally favourable across much of Manitoba, particularly in areas that received timely precipitation through the summer.
Recent rains have helped stimulate forage growth and extend grazing opportunities. However, forage supplies are beginning to tighten in portions of the Interlake region, prompting some producers to introduce supplemental feed or move cattle onto annual forage acres and hay regrowth fields.
Conditions are more challenging in parts of the far eastern region, where lower rainfall has contributed to moisture shortages, slower pasture growth and declining dugout levels.
Livestock Operations Monitor Seasonal Challenges
Manitoba cattle are generally reported to be in good condition as producers begin early stages of weaning.
Fieldwork remains the primary focus for many mixed farming operations, although cattle producers continue managing pasture-related issues such as foot rot and insect pressure.
Water supplies remain adequate across most livestock regions, with dugouts generally maintaining satisfactory levels following recent rainfall. Some eastern Manitoba operations continue to monitor declining water availability more closely due to drier conditions.
Harvest Outlook Hinges on Weather
As September begins, Manitoba producers are entering a critical period for harvest progress. Above-average forage yields, adequate feed supplies and advancing harvest operations provide encouraging signs for many farms.
However, the season's repeated weather disruptions underscore the importance of favourable harvest conditions in the weeks ahead. Additional rainfall could delay fieldwork in some regions, while producers continue monitoring crop quality and yield performance as more acres come off the field. Farmers will need to immediately sieze harvest opportunities when they present themselves.
For now, Manitoba's harvest outlook remains a story of resilience, with farmers adapting to another season where weather continues to play a defining role in crop and livestock production.