Lower Brule, SD Weather Tomorrow

Everything you need for tomorrow's Lower Brule weather and the next 5 days is here, including precipitation probability, daily and nightly weather conditions, high and low temperature trends, sunrise and sunset information, sky cover, wind speed, wind direction, and wind chill for the Lower Brule area and around Lyman county, South Dakota.
Updated: Sun Sep 20th 2026 10:30 PM CDT
Lower Brule, SD Weather – 9-20 – Scattered Showers
57° / 53°
Scattered Showers
Daytime highs will reach 57°F with lows dropping to 53°F in Lower Brule, where showers likely at times. The chance of rain is 93% with an estimated 0.7in. Wind will be moderate, blowing around 11mph on average and gusts of 17.9mph at 11 PM. High humidity with average of 92% is anticipated, the maximum being 95% at 11 PM and 95% being its lowest at 11 PM. Barometric pressure is its highest of 30.12inHg at 11 PM, a lowest point of 30.12inHg at 11 PM with an avg 30.12inHg.
Lower Brule, SD Weather – 9-21 – Scattered Showers
53° / 47°

Weather Tomorrow

Scattered Showers
Daytime highs will reach 53°F with lows dropping to 47°F in Lower Brule, where showers likely at times. The chance of rain is 92% with an estimated 0.37in. Wind will be moderate, blowing around 11mph on average and gusts of 17.9mph at 8 AM. High humidity with average of 92% is anticipated, the maximum being 97% at 4 AM and 88% being its lowest at 12 PM. Barometric pressure is its highest of 30.23inHg at 11 PM, a lowest point of 30.12inHg at 3 AM with an avg 30.17inHg.
Lower Brule, SD Weather – 9-22 – Overcast
59° / 45°
Overcast
Lower Brule could see cloud-filled skies with daytime highs of 59°F and nighttime lows near 45°F. There's a moderate 48% chance of rainfall with an estimated 0.01in. Wind will be moderate, blowing around 17mph on average and gusts of 31.6mph at 11 PM. High humidity with average of 84% is anticipated, the maximum being 94% at 6 AM and 65% being its lowest at 3 PM. Barometric pressure is its highest of 30.23inHg at 3 AM, a lowest point of 30.11inHg at 6 PM with an avg 30.18inHg.
Lower Brule, SD Weather – 9-23 – Scattered Showers
71° / 52°
Scattered Showers
Daytime highs will reach 71°F with lows dropping to 52°F in Lower Brule, where showers likely at times. Rainfall predicted to have a 71% chance with an estimated 0.09in. Winds will be strong at speeds peaking at 24mph and gusts of 37.1mph at 10 PM. The humidity will be on the higher side, averaging about 77%, the maximum being 91% at 6 AM and 62% being its lowest at 5 PM. Barometric pressure is its highest of 30.13inHg at 12 AM, a lowest point of 29.96inHg at 6 PM with an avg 30.05inHg.
Lower Brule, SD Weather – 9-24 – Overcast
71° / 61°
Overcast
Daytime highs will reach 71°F with lows dropping to 61°F in Lower Brule, where it will be overcast. There's a moderate 31% chance of rainfall with an estimated 0in. Wind will be moderate, blowing around 18mph on average and gusts of 33.8mph at 12 AM. High humidity with average of 81% is anticipated, the maximum being 91% at 8 AM and 65% being its lowest at 3 PM. Barometric pressure is its highest of 30.09inHg at 11 AM, a lowest point of 30.03inHg at 4 PM with an avg 30.06inHg.
Lower Brule, SD Weather – 9-25 – Overcast
60° / 54°
Overcast
In Lower Brule, overcast is likely with a high near 60°F and a low around 54°F. There's a moderate 43% chance of rainfall with an estimated 0.01in. Wind will be moderate, blowing around 14mph on average and gusts of 23.4mph at 1 AM. High humidity with average of 91% is anticipated, the maximum being 97% at 11 PM and 87% being its lowest at 12 AM. Barometric pressure is its highest of 30.08inHg at 12 AM, a lowest point of 29.89inHg at 10 PM with an avg 29.99inHg.

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