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Swanwick, IL Weather Tomorrow

Use tomorrow's Swanwick weather forecast and the next 5 day outlook to track daily precipitation forecasts, changing sky conditions, daytime highs, overnight lows, Fahrenheit and Celsius temperatures, sunrise, sunset, wind chill, and local wind details for the Swanwick area and around Perry county, Illinois.
Updated: Fri Oct 9th 2026 3:15 AM CDT
Swanwick, IL Weather – 10-9 – Sunny
90° / 59°
Sunny
A sunny day is in the forecast for Swanwick, with a high of 90°F and a low of 59°F. There's a very small chance of rainfall, only about 2%. Wind will be moderate, blowing around 12mph on average and gusts of 22.2mph at 11 PM. The air will be relatively dry with average humidity levels below 30%, the maximum being 39% at 7 AM and 14% being its lowest at 2 PM. Barometric pressure is its highest of 30.13inHg at 9 AM, a lowest point of 29.99inHg at 4 PM with an avg 30.06inHg.
Swanwick, IL Weather – 10-10 – Overcast
77° / 62°

Weather Tomorrow

Overcast
Swanwick may see cloud-filled skies, with daytime highs of 77°F and overnight lows near 62°F. There might be light rainfall having a 14% chance with an estimated 0in. Wind will be moderate, blowing around 14mph on average and gusts of 22.2mph at 7 PM. Humidity levels should be comfortable, sitting around 53% on average, the maximum being 80% at 11 PM and 40% being its lowest at 2 PM. Barometric pressure is its highest of 30.12inHg at 10 AM, a lowest point of 29.96inHg at 10 PM with an avg 30.03inHg.
Swanwick, IL Weather – 10-11 – Sunny
84° / 61°
Sunny
In Swanwick, sunshine is likely with a high near 84°F and a low around 61°F. There's a very small chance of rainfall, only about 7% with an estimated 0in. Wind will be moderate, blowing around 11mph on average and gusts of 14.1mph at 3 PM. The humidity will be on the higher side, averaging about 63%, the maximum being 90% at 12 AM and 31% being its lowest at 5 PM. Barometric pressure is its highest of 29.99inHg at 11 AM, a lowest point of 29.92inHg at 5 PM with an avg 29.95inHg.
Swanwick, IL Weather – 10-12 – Sunny
94° / 64°
Sunny
In Swanwick, it will be sunny with highs near 94°F and lows around 64°F. There's a very small chance of rainfall, only about 3%. Wind will be moderate, blowing around 13mph on average and gusts of 32.4mph at 10 PM. Humidity levels should be comfortable, sitting around 44% on average, the maximum being 64% at 5 AM and 24% being its lowest at 3 PM. Barometric pressure is its highest of 29.99inHg at 9 AM, a lowest point of 29.82inHg at 5 PM with an avg 29.92inHg.
Swanwick, IL Weather – 10-13 – Sunny
92° / 70°
Sunny
Swanwick may see a sunny day, with daytime highs of 92°F and overnight lows near 70°F. Rainfall predicted to have a 57% chance with an estimated 0.07in. Wind will be moderate, blowing around 15mph on average and gusts of 31.3mph at 12 AM. Humidity levels should be comfortable, sitting around 55% on average, the maximum being 82% at 10 PM and 35% being its lowest at 3 PM. Barometric pressure is its highest of 29.95inHg at 10 PM, a lowest point of 29.86inHg at 3 PM with an avg 29.9inHg.
Swanwick, IL Weather – 10-14 – Light Rain Shower
70° / 61°
Light Rain Shower
Highs will reach 70°F with lows near 61°F in Swanwick, where rain showers are. The chance of rain is 89% with an estimated 0.4in. Wind will be moderate, blowing around 11mph on average and gusts of 20.8mph at 10 AM. High humidity with average of 88% is anticipated, the maximum being 93% at 11 PM and 78% being its lowest at 4 PM. Barometric pressure is its highest of 30.01inHg at 1 PM, a lowest point of 29.94inHg at 11 PM with an avg 29.98inHg.

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