Prairie City, IL Weather Forecast for 5-Days

Updated: Thu May 14th 2026 2:00 AM CDT

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Prairie City, IL Weather – 5-14 – Sunny
70° / 44°
Sunny
It will be sunny in Prairie City, with a high of 70°F and a low of 44°F. Wind will be moderate, blowing around 14mph on average and gusts of 24.5mph at 11 PM. Humidity levels should be comfortable, sitting around 56% on average, the maximum being 76% at 6 AM and 32% being its lowest at 11 AM. Barometric pressure is its highest of 30.12inHg at 7 AM, a lowest point of 29.91inHg at 11 PM with an avg 30.03inHg.
Prairie City, IL Weather – 5-15 – Moderate Rain
75° / 55°

Weather Tomorrow

Moderate Rain
Prairie City could see rain with daytime highs of 75°F and nighttime lows near 55°F. The chance of rain is 89% with an estimated 0.27in. Wind will be moderate, blowing around 16mph on average and gusts of 25.3mph at 2 AM. High humidity with average of 81% is anticipated, the maximum being 94% at 11 PM and 65% being its lowest at 12 AM. Barometric pressure is its highest of 29.91inHg at 12 AM, a lowest point of 29.72inHg at 5 PM with an avg 29.8inHg.
Prairie City, IL Weather – 5-16 – Heavy Rain
83° / 63°
Heavy Rain
In Prairie City, periods of rain are likely with highs near 83°F and lows around 63°F. The chance of rain is 86% with an estimated 0.82in. Wind will be moderate, blowing around 15mph on average and gusts of 27mph at 4 PM. High humidity with average of 82% is anticipated, the maximum being 96% at 4 AM and 60% being its lowest at 2 PM. Barometric pressure is its highest of 29.8inHg at 11 PM, a lowest point of 29.71inHg at 7 PM with an avg 29.76inHg.
Prairie City, IL Weather – 5-17 – Moderate Rain
81° / 64°
Moderate Rain
Periods of rain are likely in Prairie City, with a high of 81°F and a low of 64°F. The chance of rain is 84% with an estimated 0.25in. Wind will be moderate, blowing around 18mph on average and gusts of 31.2mph at 11 PM. High humidity with average of 83% is anticipated, the maximum being 97% at 4 AM and 65% being its lowest at 3 PM. Barometric pressure is its highest of 29.85inHg at 11 AM, a lowest point of 29.74inHg at 4 PM with an avg 29.8inHg.
Prairie City, IL Weather – 5-18 – Moderate Rain
76° / 59°
Moderate Rain
Prairie City could see rain showers with daytime highs of 76°F and nighttime lows near 59°F. The chance of rain is 89% with an estimated 0.32in. Winds will be strong at speeds peaking at 24mph and gusts of 34.3mph at 4 PM. High humidity with average of 81% is anticipated, the maximum being 94% at 10 PM and 70% being its lowest at 1 AM. Barometric pressure is its highest of 29.97inHg at 11 PM, a lowest point of 29.73inHg at 12 AM with an avg 29.8inHg.
Prairie City, IL Weather – 5-19 – Sunny
72° / 51°
Sunny
In Prairie City, sunshine is likely with a high near 72°F and a low around 51°F. Winds will be light at 7mph and gusts of 14.6mph at 4 AM. The humidity will be on the higher side, averaging about 62%, the maximum being 90% at 12 AM and 37% being its lowest at 4 PM. Barometric pressure is its highest of 30.14inHg at 10 AM, a lowest point of 30inHg at 12 AM with an avg 30.09inHg.

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