Rock Island, IL Weather Forecast for 5-Days

Updated: Mon Jun 15th 2026 3:15 AM CDT

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Rock Island, IL Weather – 6-15 – Sunny
83° / 53°
Sunny
In Rock Island, it will be sunny with highs near 83°F and lows around 53°F. There's a very small chance of rainfall, only about 3%. Wind will be moderate, blowing around 13mph on average and gusts of 19.7mph at 11 PM. Humidity levels should be comfortable, sitting around 60% on average, the maximum being 81% at 6 AM and 28% being its lowest at 3 PM. Barometric pressure is its highest of 30.02inHg at 5 AM, a lowest point of 29.82inHg at 10 PM with an avg 29.93inHg.
Rock Island, IL Weather – 6-16 – Scattered Showers
73° / 56°

Weather Tomorrow

Scattered Showers
Passing showers are in the forecast for Rock Island, with a high of 73°F and a low of 56°F. Rainfall predicted to have a 69% chance with an estimated 0.18in. Wind will be moderate, blowing around 18mph on average and gusts of 26.9mph at 2 AM. The humidity will be on the higher side, averaging about 73%, the maximum being 96% at 5 AM and 53% being its lowest at 3 PM. Barometric pressure is its highest of 29.8inHg at 12 AM, a lowest point of 29.61inHg at 4 PM with an avg 29.68inHg.
Rock Island, IL Weather – 6-17 – Moderate Rain
70° / 56°
Moderate Rain
Daytime highs will reach 70°F with lows dropping to 56°F in Rock Island, where periods of rain are likely. The chance of rain is 85% with an estimated 0.56in. Wind will be moderate, blowing around 16mph on average and gusts of 21mph at 4 PM. High humidity with average of 81% is anticipated, the maximum being 99% at 10 PM and 62% being its lowest at 5 AM. Barometric pressure is its highest of 29.71inHg at 12 AM, a lowest point of 29.34inHg at 7 PM with an avg 29.54inHg.
Rock Island, IL Weather – 6-18 – Scattered Showers
65° / 57°
Scattered Showers
Showers likely at times in Rock Island, with a high of 65°F and a low of 57°F. Rainfall predicted to have a 60% chance with an estimated 0.03in. Wind will be moderate, blowing around 16mph on average and gusts of 25.5mph at 3 AM. High humidity with average of 87% is anticipated, the maximum being 98% at 12 AM and 74% being its lowest at 4 PM. Barometric pressure is its highest of 29.93inHg at 11 PM, a lowest point of 29.38inHg at 12 AM with an avg 29.67inHg.
Rock Island, IL Weather – 6-19 – Sunny
71° / 50°
Sunny
Daytime highs will reach 71°F with lows dropping to 50°F in Rock Island, where bright and sunny conditions. There might be light rainfall having a 18% chance with an estimated 0in. Wind will be moderate, blowing around 15mph on average and gusts of 16.7mph at 12 PM. The humidity will be on the higher side, averaging about 79%, the maximum being 93% at 1 AM and 57% being its lowest at 12 PM. Barometric pressure is its highest of 30.05inHg at 12 PM, a lowest point of 29.9inHg at 1 AM with an avg 29.97inHg.
Rock Island, IL Weather – 6-20 – Scattered Showers
67° / 55°
Scattered Showers
Rock Island is set for passing showers with temperatures peaking at 67°F and dipping to 55°F. There's a moderate 36% chance of rainfall with an estimated 0.01in. Wind will be moderate, blowing around 11mph on average and gusts of 15.5mph at 4 AM. High humidity with average of 85% is anticipated, the maximum being 94% at 11 PM and 69% being its lowest at 1 PM. Barometric pressure is its highest of 30inHg at 10 AM, a lowest point of 29.95inHg at 1 AM with an avg 29.97inHg.

Currently

Clear 52°F
30.02 inHg.
Barometer
93%
Humidity
W 10.4 mph
Wind
Clear

5 Day Forecast Nearby

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