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Serena, IL Weather Tomorrow

Serena weather tomorrow and 5 day forecast with this week's outlook featuring 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 Serena area and around LaSalle county, Illinois.
Updated: Sat Aug 29th 2026 10:30 AM CDT
Serena, IL Weather – 8-29 – Overcast
83° / 62°
Overcast
Daytime highs will reach 83°F with lows dropping to 62°F in Serena, where it will be overcast. There might be light rainfall having a 17% chance with an estimated 0in. Wind will be moderate, blowing around 13mph on average and gusts of 30.2mph at 11 PM. The humidity will be on the higher side, averaging about 75%, the maximum being 95% at 9 PM and 46% being its lowest at 3 PM. Barometric pressure is its highest of 30.12inHg at 11 AM, a lowest point of 29.99inHg at 7 PM with an avg 30.04inHg.
Serena, IL Weather – 8-30 – Scattered Showers
85° / 66°

Weather Tomorrow

Scattered Showers
Daytime highs will reach 85°F with lows dropping to 66°F in Serena, where on and off showers are set to occur. Rainfall predicted to have a 57% chance with an estimated 0.04in. Wind will be moderate, blowing around 15mph on average and gusts of 37.3mph at 8 PM. The humidity will be on the higher side, averaging about 75%, the maximum being 90% at 6 AM and 53% being its lowest at 11 PM. Barometric pressure is its highest of 29.98inHg at 7 AM, a lowest point of 29.85inHg at 7 PM with an avg 29.92inHg.
Serena, IL Weather – 8-31 – Overcast
89° / 69°
Overcast
Daytime highs will reach 89°F with lows dropping to 69°F in Serena, where it will be overcast. There's a moderate 40% chance of rainfall with an estimated 0.02in. Wind will be moderate, blowing around 15mph on average and gusts of 39.4mph at 11 PM. The humidity will be on the higher side, averaging about 66%, the maximum being 81% at 7 AM and 46% being its lowest at 1 AM. Barometric pressure is its highest of 29.89inHg at 10 AM, a lowest point of 29.79inHg at 11 PM with an avg 29.84inHg.
Serena, IL Weather – 9-1 – Overcast
89° / 76°
Overcast
Daytime highs will reach 89°F with lows dropping to 76°F in Serena, where it will be overcast. There might be light rainfall having a 11% chance with an estimated 0in. Wind will be moderate, blowing around 14mph on average and gusts of 39mph at 11 PM. The humidity will be on the higher side, averaging about 64%, the maximum being 78% at 8 PM and 46% being its lowest at 12 AM. Barometric pressure is its highest of 29.88inHg at 9 PM, a lowest point of 29.81inHg at 12 AM with an avg 29.85inHg.
Serena, IL Weather – 9-2 – Sunny
89° / 75°
Sunny
Serena may see a sunny day, with daytime highs of 89°F and overnight lows near 75°F. There's a very small chance of rainfall, only about 5%. Wind will be moderate, blowing around 14mph on average and gusts of 38.1mph at 12 AM. The humidity will be on the higher side, averaging about 66%, the maximum being 82% at 11 PM and 43% being its lowest at 12 AM. Barometric pressure is its highest of 29.9inHg at 11 PM, a lowest point of 29.82inHg at 6 PM with an avg 29.84inHg.
Serena, IL Weather – 9-3 – Sunny
85° / 71°
Sunny
In Serena, a sunny day is likely with a high near 85°F and a low around 71°F. There's a very small chance of rainfall, only about 9%. Winds will be light at 9mph and gusts of 19mph at 10 PM. The humidity will be on the higher side, averaging about 80%, the maximum being 94% at 7 AM and 60% being its lowest at 4 PM. Barometric pressure is its highest of 29.97inHg at 9 AM, a lowest point of 29.91inHg at 12 AM with an avg 29.95inHg.

Currently

Overcast 75°F
30.12 inHg.
Barometer
64%
Humidity
S 14.4 mph
Wind
Overcast

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