Prairie Du Rocher, IL Weather Tomorrow

Need tomorrow's weather for Prairie Du Rocher? This 5 day forecast provides 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 Prairie Du Rocher area and around Randolph county, Illinois.
Updated: Sat Sep 5th 2026 9:00 PM CDT
Prairie Du Rocher, IL Weather – 9-5 – Sunny
104° / 77°
Sunny
It will be sunny in Prairie Du Rocher, with a high of 104°F and a low of 77°F. There's a very small chance of rainfall, only about 4%. Wind will be moderate, blowing around 12mph on average and gusts of 6.1mph at 11 PM. Humidity levels should be comfortable, sitting around 56% on average, the maximum being 58% at 11 PM and 57% being its lowest at 10 PM. Barometric pressure is its highest of 29.9inHg at 11 PM, a lowest point of 29.89inHg at 10 PM with an avg 29.9inHg.
Prairie Du Rocher, IL Weather – 9-6 – Sunny
94° / 72°

Weather Tomorrow

Sunny
It will be sunny in Prairie Du Rocher, with a high of 94°F and a low of 72°F. 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 26.6mph at 9 PM. Humidity levels should be comfortable, sitting around 60% on average, the maximum being 97% at 7 AM and 27% being its lowest at 4 PM. Barometric pressure is its highest of 29.98inHg at 11 PM, a lowest point of 29.88inHg at 3 AM with an avg 29.93inHg.
Prairie Du Rocher, IL Weather – 9-7 – Sunny
92° / 62°
Sunny
In Prairie Du Rocher, it will be sunny with highs near 92°F and lows around 62°F. There's a very small chance of rainfall, only about 3%. Winds will be light at 9mph and gusts of 19.9mph at 3 PM. Humidity levels should be comfortable, sitting around 49% on average, the maximum being 91% at 7 AM and 19% being its lowest at 4 PM. Barometric pressure is its highest of 30.08inHg at 10 AM, a lowest point of 29.97inHg at 5 PM with an avg 30.02inHg.
Prairie Du Rocher, IL Weather – 9-8 – Sunny
101° / 64°
Sunny
It will be sunny in Prairie Du Rocher, with a high of 101°F and a low of 64°F. There's a very small chance of rainfall, only about 1%. Wind will be moderate, blowing around 12mph on average and gusts of 21.3mph at 5 PM. Humidity levels should be comfortable, sitting around 42% on average, the maximum being 61% at 7 AM and 21% being its lowest at 3 PM. Barometric pressure is its highest of 30.1inHg at 9 AM, a lowest point of 29.96inHg at 5 PM with an avg 30.04inHg.
Prairie Du Rocher, IL Weather – 9-9 – Sunny
105° / 75°
Sunny
In Prairie Du Rocher, it will be sunny with highs near 105°F and lows around 75°F. Rainfall predicted to have a 57% chance with an estimated 0.05in. Wind will be moderate, blowing around 20mph on average and gusts of 35.5mph at 2 AM. Humidity levels should be comfortable, sitting around 53% on average, the maximum being 88% at 10 PM and 24% being its lowest at 5 PM. Barometric pressure is its highest of 30.1inHg at 8 AM, a lowest point of 29.85inHg at 5 PM with an avg 30.01inHg.
Prairie Du Rocher, IL Weather – 9-10 – Light Rain Shower
88° / 71°
Light Rain Shower
It will rain at times in Prairie Du Rocher, with a high of 88°F and a low of 71°F. The chance of rain is 81% with an estimated 0.46in. Wind will be moderate, blowing around 12mph on average and gusts of 19.5mph at 10 AM. The humidity will be on the higher side, averaging about 71%, the maximum being 95% at 5 AM and 41% being its lowest at 4 PM. Barometric pressure is its highest of 29.97inHg at 11 PM, a lowest point of 29.9inHg at 5 PM with an avg 29.94inHg.

Currently

Overcast 86°F
29.84 inHg.
Barometer
54%
Humidity
NE 16.2 mph
Wind
Overcast

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