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Alpha, IL Weather Tomorrow

The Alpha weather tomorrow and 5 day forecast provides daily precipitation forecasts, changing sky conditions, daytime highs, overnight lows, Fahrenheit and Celsius temperatures, sunrise, sunset, wind chill, and local wind details throughout the Alpha area and around Henry county, Illinois.
Updated: Fri Oct 16th 2026 6:15 AM CDT
Alpha, IL Weather – 10-16 – Sunny
51° / 41°
Sunny
In Alpha, it will be sunny with highs near 51°F and lows around 41°F. Rainfall predicted to have a 52% chance with an estimated 0.04in. Winds will be strong at speeds peaking at 22mph and gusts of 32.9mph at 3 PM. The humidity will be on the higher side, averaging about 77%, the maximum being 86% at 1 PM and 69% being its lowest at 8 PM. Barometric pressure is its highest of 30.48inHg at 11 PM, a lowest point of 30.11inHg at 7 AM with an avg 30.26inHg.
Alpha, IL Weather – 10-17 – Sunny
55° / 35°

Weather Tomorrow

Sunny
Daytime highs will reach 55°F with lows dropping to 35°F in Alpha, where bright and sunny conditions. There's a very small chance of rainfall, only about 3%. Wind will be moderate, blowing around 12mph on average and gusts of 26.9mph at 12 AM. Humidity levels should be comfortable, sitting around 59% on average, the maximum being 83% at 7 AM and 33% being its lowest at 3 PM. Barometric pressure is its highest of 30.57inHg at 9 AM, a lowest point of 30.43inHg at 5 PM with an avg 30.5inHg.
Alpha, IL Weather – 10-18 – Sunny
61° / 40°
Sunny
In Alpha, sunshine is likely with a high near 61°F and a low around 40°F. There's a very small chance of rainfall, only about 2%. Wind will be moderate, blowing around 15mph on average and gusts of 25.8mph at 8 AM. Humidity levels should be comfortable, sitting around 53% on average, the maximum being 70% at 7 AM and 36% being its lowest at 3 PM. Barometric pressure is its highest of 30.46inHg at 9 AM, a lowest point of 30.32inHg at 5 PM with an avg 30.4inHg.
Alpha, IL Weather – 10-19 – Sunny
65° / 44°
Sunny
Daytime highs will reach 65°F with lows dropping to 44°F in Alpha, where it will be sunny. There's a very small chance of rainfall, only about 5%. Winds will be light at 9mph and gusts of 19.9mph at 12 AM. Humidity levels should be comfortable, sitting around 51% on average, the maximum being 63% at 8 AM and 36% being its lowest at 3 PM. Barometric pressure is its highest of 30.39inHg at 9 AM, a lowest point of 30.29inHg at 5 PM with an avg 30.34inHg.
Alpha, IL Weather – 10-20 – Overcast
66° / 50°
Overcast
Alpha may see cloud-filled skies, with daytime highs of 66°F and overnight lows near 50°F. There's a very small chance of rainfall, only about 8%. Winds will be light at 8mph and gusts of 16.6mph at 12 AM. Humidity levels should be comfortable, sitting around 48% on average, the maximum being 55% at 10 PM and 35% being its lowest at 3 PM. Barometric pressure is its highest of 30.36inHg at 9 AM, a lowest point of 30.28inHg at 5 PM with an avg 30.31inHg.
Alpha, IL Weather – 10-21 – Sunny
69° / 53°
Sunny
Daytime highs will reach 69°F with lows dropping to 53°F in Alpha, where bright and sunny conditions. There's a very small chance of rainfall, only about 5%. Winds will be light at 10mph and gusts of 14.8mph at 11 PM. Humidity levels should be comfortable, sitting around 49% on average, the maximum being 56% at 7 AM and 37% being its lowest at 4 PM. Barometric pressure is its highest of 30.29inHg at 12 AM, a lowest point of 30.16inHg at 11 PM with an avg 30.24inHg.
Alpha, IL Weather Forecast - 10 Day Detailed

5 Day Forecast Nearby

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