Saint Onge, SD Weather Tomorrow

Everything you need for tomorrow's Saint Onge weather and the next 5 days is here, including precipitation chances, day and night conditions, high and low temperatures in Fahrenheit and Celsius, sunrise, sunset, sky conditions, wind chill, and wind speed with direction for the Saint Onge area and around Lawrence county, South Dakota.
Updated: Sat Aug 29th 2026 5:15 PM MDT
Saint Onge, SD Weather – 8-29 – Overcast
90° / 68°
Overcast
Skies will be overcast in Saint Onge, with a high of 90°F and a low of 68°F. Rainfall predicted to have a 68% chance with an estimated 0.34in. Wind will be moderate, blowing around 14mph on average and gusts of 23.5mph at 8 PM. Humidity levels should be comfortable, sitting around 46% on average, the maximum being 81% at 10 PM and 25% being its lowest at 6 PM. Barometric pressure is its highest of 29.77inHg at 11 PM, a lowest point of 29.59inHg at 6 PM with an avg 29.69inHg.
Saint Onge, SD Weather – 8-30 – Overcast
87° / 61°

Weather Tomorrow

Overcast
Saint Onge is set for cloud-filled skies with temperatures peaking at 87°F and dipping to 61°F. There might be light rainfall having a 17% chance with an estimated 0in. Wind will be moderate, blowing around 19mph on average and gusts of 28mph at 4 PM. Humidity levels should be comfortable, sitting around 42% on average, the maximum being 59% at 10 PM and 25% being its lowest at 12 PM. Barometric pressure is its highest of 29.85inHg at 9 PM, a lowest point of 29.6inHg at 4 PM with an avg 29.75inHg.
Saint Onge, SD Weather – 8-31 – Sunny
89° / 61°
Sunny
Saint Onge may see a sunny day, with daytime highs of 89°F and overnight lows near 61°F. There's a very small chance of rainfall, only about 2%. Wind will be moderate, blowing around 15mph on average and gusts of 23.5mph at 6 PM. The air will be relatively dry with average humidity levels below 30%, the maximum being 52% at 12 AM and 8% being its lowest at 3 PM. Barometric pressure is its highest of 29.85inHg at 11 PM, a lowest point of 29.72inHg at 3 PM with an avg 29.79inHg.
Saint Onge, SD Weather – 9-1 – Overcast
84° / 61°
Overcast
Highs will reach 84°F with lows near 61°F in Saint Onge, where overcast is. There might be light rainfall having a 17% chance with an estimated 0in. Wind will be moderate, blowing around 13mph on average and gusts of 26mph at 10 PM. The air will be relatively dry with average humidity levels below 30%, the maximum being 48% at 11 PM and 20% being its lowest at 9 AM. Barometric pressure is its highest of 29.87inHg at 2 AM, a lowest point of 29.73inHg at 7 PM with an avg 29.82inHg.
Saint Onge, SD Weather – 9-2 – Sunny
94° / 65°
Sunny
In Saint Onge, it will be sunny with highs near 94°F and lows around 65°F. There's a moderate 36% chance of rainfall with an estimated 0.02in. Wind will be moderate, blowing around 20mph on average and gusts of 36.5mph at 9 PM. The air will be relatively dry with average humidity levels below 30%, the maximum being 50% at 1 AM and 12% being its lowest at 5 PM. Barometric pressure is its highest of 29.84inHg at 12 AM, a lowest point of 29.64inHg at 7 PM with an avg 29.74inHg.
Saint Onge, SD Weather – 9-3 – Sunny
92° / 63°
Sunny
In Saint Onge, it will be sunny with highs near 92°F and lows around 63°F. There's a very small chance of rainfall, only about 3%. Wind will be moderate, blowing around 15mph on average and gusts of 27.1mph at 12 AM. The air will be relatively dry with average humidity levels below 30%, the maximum being 50% at 3 AM and 11% being its lowest at 12 PM. Barometric pressure is its highest of 29.84inHg at 6 AM, a lowest point of 29.67inHg at 6 PM with an avg 29.76inHg.

Currently

Overcast 89°F
29.58 inHg.
Barometer
24%
Humidity
WNW 14.4 mph
Wind
Overcast

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