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Allen, KS Weather Tomorrow

Tomorrow's weather forecast for Allen is supported by a complete 5 day outlook covering precipitation potential, daytime and nighttime forecasts, temperature highs and lows in Fahrenheit and Celsius, sunrise and sunset times, cloud cover, wind chill, wind speed, and wind direction for the Allen area and around Lyon county, Kansas.
Updated: Sun Aug 30th 2026 2:00 PM CDT
Allen, KS Weather – 8-30 – Sunny
104° / 75°
Sunny
In Allen, a sunny day is likely with a high near 104°F and a low around 75°F. There's a very small chance of rainfall, only about 3%. Winds will be strong at speeds peaking at 22mph and gusts of 38.7mph at 11 PM. Humidity levels should be comfortable, sitting around 36% on average, the maximum being 27% at 3 PM and 14% being its lowest at 4 PM. Barometric pressure is its highest of 29.75inHg at 10 PM, a lowest point of 29.7inHg at 6 PM with an avg 29.73inHg.
Allen, KS Weather – 8-31 – Sunny
105° / 79°

Weather Tomorrow

Sunny
Allen may see a sunny day, with daytime highs of 105°F and overnight lows near 79°F. There might be light rainfall having a 17% chance with an estimated 0in. Winds will be strong at speeds peaking at 21mph and gusts of 39mph at 4 AM. The air will be relatively dry with average humidity levels below 30%, the maximum being 51% at 5 AM and 13% being its lowest at 3 PM. Barometric pressure is its highest of 29.87inHg at 8 AM, a lowest point of 29.75inHg at 6 PM with an avg 29.81inHg.
Allen, KS Weather – 9-1 – Sunny
104° / 80°
Sunny
Bright and sunny conditions in Allen, with a high of 104°F and a low of 80°F. There's a very small chance of rainfall, only about 1%. Winds will be strong at speeds peaking at 21mph and gusts of 38.9mph at 2 AM. The air will be relatively dry with average humidity levels below 30%, the maximum being 43% at 7 AM and 14% being its lowest at 4 PM. Barometric pressure is its highest of 29.9inHg at 8 AM, a lowest point of 29.74inHg at 6 PM with an avg 29.82inHg.
Allen, KS Weather – 9-2 – Sunny
101° / 84°
Sunny
In Allen, bright and sunny conditions with highs near 101°F and lows around 84°F. There's a very small chance of rainfall, only about 3%. Wind will be moderate, blowing around 20mph on average and gusts of 39.6mph at 12 AM. The air will be relatively dry with average humidity levels below 30%, the maximum being 38% at 7 AM and 19% being its lowest at 7 PM. Barometric pressure is its highest of 29.88inHg at 9 AM, a lowest point of 29.76inHg at 8 PM with an avg 29.83inHg.
Allen, KS Weather – 9-3 – Sunny
106° / 82°
Sunny
Highs will reach 106°F with lows near 82°F in Allen, where sunshine is. There's a very small chance of rainfall, only about 1%. Wind will be moderate, blowing around 19mph on average and gusts of 39.1mph at 4 AM. Humidity levels should be comfortable, sitting around 31% on average, the maximum being 46% at 7 AM and 15% being its lowest at 4 PM. Barometric pressure is its highest of 29.88inHg at 9 AM, a lowest point of 29.72inHg at 6 PM with an avg 29.81inHg.
Allen, KS Weather – 9-4 – Overcast
106° / 86°
Overcast
In Allen, cloud-filled skies are likely with a high near 106°F and a low around 86°F. There's a very small chance of rainfall, only about 6%. Wind will be moderate, blowing around 19mph on average and gusts of 32.4mph at 11 PM. The air will be relatively dry with average humidity levels below 30%, the maximum being 41% at 7 AM and 15% being its lowest at 4 PM. Barometric pressure is its highest of 29.86inHg at 10 AM, a lowest point of 29.71inHg at 6 PM with an avg 29.79inHg.

Currently

Sunny 102°F
29.77 inHg.
Barometer
29%
Humidity
SSW 33.5 mph
Wind
Sunny

5 Day Forecast Nearby

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