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Grover, IL Weather Tomorrow

Prepare for the week ahead with tomorrow's Grover weather forecast and a complete 5 day outlook covering 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 throughout the Grover area.
Updated: Sun Sep 6th 2026 5:30 PM CDT
Grover, IL Weather – 9-6 – Sunny
93° / 69°
Sunny
Bright and sunny conditions in Grover, with a high of 93°F and a low of 69°F. There's a very small chance of rainfall, only about 5%. Wind will be moderate, blowing around 15mph on average and gusts of 27.1mph at 10 PM. The humidity will be on the higher side, averaging about 64%, the maximum being 65% at 11 PM and 40% being its lowest at 6 PM. Barometric pressure is its highest of 30inHg at 10 PM, a lowest point of 29.92inHg at 6 PM with an avg 29.97inHg.
Grover, IL Weather – 9-7 – Sunny
88° / 63°

Weather Tomorrow

Sunny
Daytime highs will reach 88°F with lows dropping to 63°F in Grover, where it will be sunny. There's a very small chance of rainfall, only about 5%. Wind will be moderate, blowing around 12mph on average and gusts of 25.1mph at 12 AM. Humidity levels should be comfortable, sitting around 57% on average, the maximum being 91% at 7 AM and 24% being its lowest at 4 PM. Barometric pressure is its highest of 30.09inHg at 8 AM, a lowest point of 30inHg at 4 PM with an avg 30.04inHg.
Grover, IL Weather – 9-8 – Overcast
97° / 65°
Overcast
In Grover, overcast is likely with a high near 97°F and a low around 65°F. There's a very small chance of rainfall, only about 6%. Wind will be moderate, blowing around 12mph on average and gusts of 30.5mph at 11 PM. Humidity levels should be comfortable, sitting around 48% on average, the maximum being 84% at 3 AM and 20% being its lowest at 5 PM. Barometric pressure is its highest of 30.12inHg at 8 AM, a lowest point of 30inHg at 4 PM with an avg 30.06inHg.
Grover, IL Weather – 9-9 – Overcast
100° / 77°
Overcast
Highs will reach 100°F with lows near 77°F in Grover, where cloud-filled skies are. There might be light rainfall having a 17% chance with an estimated 0in. Winds will be strong at speeds peaking at 24mph and gusts of 37.4mph at 3 AM. Humidity levels should be comfortable, sitting around 50% on average, the maximum being 80% at 10 PM and 27% being its lowest at 2 PM. Barometric pressure is its highest of 30.05inHg at 12 AM, a lowest point of 29.85inHg at 6 PM with an avg 29.98inHg.
Grover, IL Weather – 9-10 – Scattered Showers
83° / 65°
Scattered Showers
Showers likely at times in Grover, with a high of 83°F and a low of 65°F. Rainfall predicted to have a 71% chance with an estimated 0.25in. Wind will be moderate, blowing around 12mph on average and gusts of 24.6mph at 7 AM. The humidity will be on the higher side, averaging about 68%, the maximum being 96% at 6 AM and 28% being its lowest at 5 PM. Barometric pressure is its highest of 30.01inHg at 11 PM, a lowest point of 29.91inHg at 2 AM with an avg 29.94inHg.
Grover, IL Weather – 9-11 – Sunny
85° / 60°
Sunny
It will be sunny in Grover, with a high of 85°F and a low of 60°F. There's a very small chance of rainfall, only about 3%. Winds will be light at 9mph and gusts of 16.8mph at 10 PM. Humidity levels should be comfortable, sitting around 49% on average, the maximum being 77% at 6 AM and 22% being its lowest at 4 PM. Barometric pressure is its highest of 30.04inHg at 8 AM, a lowest point of 29.91inHg at 6 PM with an avg 29.98inHg.

Currently

Sunny 89°F
29.93 inHg.
Barometer
39%
Humidity
NNE 22.7 mph
Wind
Sunny

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