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Riley County, KS Weather Tomorrow

Weather conditions can change quickly, so check tomorrow's Riley County forecast and the complete 5 day outlook with 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 Riley County area.
Updated: Tue Aug 18th 2026 4:15 AM CDT
Riley County, KS Weather – 8-18 – Overcast
102° / 68°
Overcast
Daytime highs will reach 102°F with lows dropping to 68°F in Riley County, where it will be overcast. There's a very small chance of rainfall, only about 6%. Winds will be strong at speeds peaking at 22mph and gusts of 33.1mph at 9 PM. Humidity levels should be comfortable, sitting around 54% on average, the maximum being 80% at 8 AM and 21% being its lowest at 6 PM. Barometric pressure is its highest of 29.97inHg at 6 AM, a lowest point of 29.66inHg at 7 PM with an avg 29.83inHg.
Riley County, KS Weather – 8-19 – Overcast
91° / 69°

Weather Tomorrow

Overcast
Riley County is set for cloud-filled skies with temperatures peaking at 91°F and dipping to 69°F. There's a moderate 39% chance of rainfall with an estimated 0.02in. Wind will be moderate, blowing around 14mph on average and gusts of 28.7mph at 2 AM. Humidity levels should be comfortable, sitting around 60% on average, the maximum being 90% at 7 AM and 33% being its lowest at 4 PM. Barometric pressure is its highest of 29.92inHg at 12 PM, a lowest point of 29.82inHg at 1 AM with an avg 29.87inHg.
Riley County, KS Weather – 8-20 – Sunny
90° / 68°
Sunny
In Riley County, bright and sunny conditions with highs near 90°F and lows around 68°F. There's a moderate 36% chance of rainfall with an estimated 0.02in. Wind will be moderate, blowing around 11mph on average and gusts of 24mph at 10 PM. Humidity levels should be comfortable, sitting around 59% on average, the maximum being 95% at 7 AM and 31% being its lowest at 6 PM. Barometric pressure is its highest of 30inHg at 11 AM, a lowest point of 29.9inHg at 12 AM with an avg 29.96inHg.
Riley County, KS Weather – 8-21 – Sunny
98° / 70°
Sunny
Daytime highs will reach 98°F with lows dropping to 70°F in Riley County, where it will be sunny. There's a moderate 36% chance of rainfall with an estimated 0.03in. Wind will be moderate, blowing around 12mph on average and gusts of 26.4mph at 8 PM. Humidity levels should be comfortable, sitting around 59% on average, the maximum being 91% at 6 AM and 21% being its lowest at 6 PM. Barometric pressure is its highest of 30inHg at 7 AM, a lowest point of 29.78inHg at 7 PM with an avg 29.94inHg.
Riley County, KS Weather – 8-22 – Scattered Showers
103° / 71°
Scattered Showers
Riley County could see scattered showers with daytime highs of 103°F and nighttime lows near 71°F. There might be light rainfall having a 17% chance with an estimated 0.01in. Wind will be moderate, blowing around 13mph on average and gusts of 30mph at 11 PM. Humidity levels should be comfortable, sitting around 49% on average, the maximum being 78% at 7 AM and 16% being its lowest at 4 PM. Barometric pressure is its highest of 30inHg at 8 AM, a lowest point of 29.77inHg at 7 PM with an avg 29.89inHg.
Riley County, KS Weather – 8-23 – Overcast
113° / 75°
Overcast
It will be overcast in Riley County, with a high of 113°F and a low of 75°F. There's a very small chance of rainfall, only about 7% with an estimated 0in. Winds will be strong at speeds peaking at 21mph and gusts of 35.2mph at 10 PM. Humidity levels should be comfortable, sitting around 38% on average, the maximum being 68% at 7 AM and 9% being its lowest at 4 PM. Barometric pressure is its highest of 29.87inHg at 1 AM, a lowest point of 29.58inHg at 7 PM with an avg 29.75inHg.

Currently

Overcast 70°F
29.94 inHg.
Barometer
70%
Humidity
SSE 14 mph
Wind
Overcast

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