Weather Conditions and Reports

Manitoba's ag weather program measures and records data year round from over 100 weather stations across agro-Manitoba. The stations monitor air temperature, relative humidity, barometric pressure, precipitation, wind speed and direction, solar radiation, soil temperature, and soil moisture. The latest weather conditions from each station are made available every 15 minutes throughout the growing season and every hour during the winter months. 

• Current Weather Conditions - Interactive Map
• Current Conditions by Station
• Current Conditions Summary - Central, Eastern & Interlake
• Current Conditions Summary - Northwest & Southwest
• Hourly Summary
• Daily Summary
• Seasonal Summary
• Current Soil Temperature

 

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The latest weather report and maps are made available every Monday year round. Subscribe to receive a weekly distribution of seasonal reports and maps by email.

Higher resolution maps are available upon request.

 

Precipitation

Seven-Day Accumulated Precipitation (June 15 - 21)

Variable precipitation occurred over the past 7 days across agro-Manitoba.  Isolate rains swept through the Southwest and Central regions with accumulations ranging from 0 to 34 mm.  Areas of the Interlake received less than 5 mm of rain.  Already flooded areas around Swan River and Swan Valley received 22 mm of rain.  Somerset received the highest accumulation of precipitation this week with 34 mm.

Table 1. Range of measurements of seven-day accumulated precipitation in Manitoba’s Agricultural Regions (June 15 - 21, 2026)

Percent Normal Precipitation (PDF 1.6 MB)

Total Accumulated Precipitation (PDF 1.6 MB)

Climate normals for total accumulated precipitation from May 1 to June 21 range from 89.7 mm to 154.0 mm (Table 2) and are based on 30-year historical data. Since May 1, the large portions of the Northwest, Interlake, and Eastern regions have accumulated more than 80 mm of precipitation. Recent precipitation events have brought seasonal accumulations well above normal for the Interlake and Northwest regions. Areas of the Northwest have accumulated more that 150% of normal precipitation while areas of the southern Interlake near Stonewall have accumulated more than 250% of normal precipitation. The majority Southwest is still below normal at under 70% of the 30-year average precipitation so far this season.

Table 2. Summary of measurement of total accumulated precipitation in Manitoba’s Agricultural Regions. (May 1 to June 21, 2026)

Region	Range of Normals (mm)	Stations Above Normal (%)	Wettest Location this Season (mm, % norm.)	Driest Location this Season (mm, % norm.)
Central	111.3→ 138.5	15	Elie (159, 133)	Austin (70, 62)
Eastern	105.7 → 154.0	27	Stead (159, 150)	Saint Labre (60, 47)
Interlake	96.5 → 131.2	67	Stonewall (316, 241)	Riverton (78, 75)
Northwest	89.7 → 130.1	57	Minitonas (234, 226)	Laurier (73, 68)
Southwest	98.7 → 135.0	7	Forrest (131,116)	Ninette (38, 32)

 

Soil Moisture

Soil Moisture 30cm (1.3 MB)

Soil Moisture 0 - 30 cm shows a regional representation of soil moisture conditions for the top 30 cm on June 21, 2026 relative to field capacity. Most areas are showing wet or optimal conditions. Areas of the Northwest and Interlake are showing very wet conditions due to recent extensive rains. Some localized regions are showing dry or very dry conditions.

 

Soil Moisture 120 cm (1.3 MB)

Soil Moisture 0 - 120 cm shows a regional representation of soil moisture conditions for the top 120 cm on June 21, 2026 relative to field capacity. The majority of agricultural regions are showing wet or very wet to conditions at the 0-120 cm depths.

  

Growing Degree Days

Total Accumulated Growing Degree Days (PDF 1.6MB)

Total Accumulation of Growing Degree Days shows the accumulated growing degree days (GDD) for the period of May 1 – June 21, 2026. GDD accumulations ranged between 350 and 522 GDD so far this growing season. Most of Southern Manitoba has accumulated more than 425 GDD.

 

Percent Normal Accumulated Growing Degree Days  (PDF 1.7 KB)

Percent Normal Accumulated Growing Degree Days represents the variation of accumulated Growing Degree Days (GDD) from the historical record over a 30-year period from May 1 – June 21, 2026. GDD Near-normal temperatures this week slowed GDD Accumulations however, the majority of regions are still above normal.

 

Table 3. Summary of total accumulated growing degree days (GDD) and percent deviation from normal in Manitoba's Agricultural Regions (May 1- June 21, 2026)

Region	Range of Normals (mm)	Stations Above Normal (%)	Highest GDD accumulation this season (GDD, % norm.)	Lowest GDD accumulation this season (GDD, % norm.)
Central	402 → 477	100	Winkler (522, 113)	Lakeland (438, 103)
Eastern	400 → 466	82	St. Adolphe (476, 104)	Sprague Lake (368, 89)
Interlake	375 → 455	100	Selkirk (469, 106)	Taylor's Point (403, 106)
Northwest	327 → 412	96	Ste. Rose (432, 109)	Pipe Lake (360, 103)
Southwest	297 → 450	100	Dand (503, 115)	Wasagaming (350, 118)

Corn Heat Units

Total Accumulated Corn Heat Units (PDF 1.6 KB)

Total Accumulated Corn Heat Units illustrates the total accumulated Corn Heat Units (CHU) for the growing season to from May 1 – June 21.  More than 720 CHU have accumulated in much of the Southwest, Central, and Eastern regions since May 1.

 

Percent Normal Accumulated Corn Heat Units (PDF 1.6 KB)

Percent Normal Accumulated Corn Heat Units represents the variation of accumulated Corn Heat Units (CHU) from the historical record over a 30-year period for the period of May 1 – June 21. Above average CHU accumulations were observed throughout the province.  The Northwest and Southwest regions saw accumulations above 110% of the 30-year normals.

 

Table 4. Summary of total accumulated corn heat units (CHU) and percent deviation from normal in Manitoba's Agricultural Regions (May 1 - June 21, 2026)

Region	Range of Normals (mm)	Stations Above Normal (%)	Highest CHU accumulation this season (CHU, % norm.)	Lowest CHU accumulation this season (CHU, % norm.)
Central	652 → 769	100	Winkler (853, 114)	Lakeland (728, 106)
Eastern	646 → 756	95	Steinbach (791, 113)	Sprague Lake (639, 95)
Interlake	5277 → 667	100	Stonewall (765, 105)	Taylor's Point (683, 111)
Northwest	527 → 667	100	Ste. Rose (729, 114)	The Pas (594, 113)
Southwest	476 →729	100	Dand (834, 118)	Wasagaming (633, 133)

P-Days

Total Accumulated P-Days (June 1-21, 2026) represents the total accumulated physiological days for potatoes (P-days) since June 1.  As P-Day accumulation begins at about 50% potato emergence, accumulation begins on June 1.  The southern regions of agro-Manitoba have accumulated more than 104 P-Days so far this season.

Percent of Normal Accumulated P-Days (June 1-21 2026) represents the variation of accumulated physiological days for potatoes (P-Days) from the historical record over a 30-year period. The majority of agro-Manitoba PDay accumulations to over 100% of normal so far this season.

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