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La Salle, IL Weather Forecast | 5 Day

Updated: Tue Sep 15th 2026 1:00 AM CDT

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La Salle, IL Weather Forecast - 9-15-26 - Scattered Showers

Scattered Showers

Tue 9-15-26

Scattered Showers with a high of 83°F and a low of 66°F. It will likey rain, having a 80% chance of a downpour with an estimated 0.29in. Wind will be moderate, blowing around 18mph on average and gusts of 39.8mph at 5 AM. The humidity will be on the higher side, averaging about 80%, the maximum being 96% at 9 PM and 66% being its lowest at 2 PM. Barometric pressure is its highest of 30.18inHg at 10 PM, a lowest point of 29.96inHg at 3 AM with an avg 30.05inHg.

    • HI: 83°F
    • LO: 66°F
    • Rainfall: 80% | est. 0.29in
    • Snowfall: 0%
    • Wind
      17.9 mph
    • Humidity
      80% avg.
    • UV Index
      5.6
    • Air Quality
      Good
    • Sunrise
      06:36 AM
    • Sunset
      07:06 PM
    • Moonrise
      11:52 AM
    • Moonset
      09:10 PM
    • Moon Phase
      Waxing Crescent
La Salle, IL Weather Forecast - 9-16-26 - Light Rain Shower

Light Rain Shower

Weather Tomorrow, Wed 9-16-26

Light Rain Shower with a high of 69°F and a low of 60°F. It will likey rain, having a 92% chance of a downpour with an estimated 0.57in. Winds will be light at 10mph and gusts of 18.3mph at 10 AM. High humidity with average of 93% is anticipated, the maximum being 98% at 9 PM and 88% being its lowest at 5 PM. Barometric pressure is its highest of 30.34inHg at 11 AM, a lowest point of 30.18inHg at 12 AM with an avg 30.27inHg.

    • HI: 69°F
    • LO: 60°F
    • Rainfall: 92% | est. 0.57in
    • Snowfall: 0%
    • Wind
      9.2 mph
    • Humidity
      93% avg.
    • UV Index
      2.2
    • Air Quality
      Good
    • Sunrise
      06:37 AM
    • Sunset
      07:04 PM
    • Moonrise
      01:01 PM
    • Moonset
      09:50 PM
    • Moon Phase
      First Quarter
La Salle, IL Weather Forecast - 9-17-26 - Light Rain Shower

Light Rain Shower

Thu 9-17-26

Light Rain Shower with a high of 81°F and a low of 63°F. It will likey rain, having a 91% chance of a downpour with an estimated 0.49in. Winds will be light at 9mph and gusts of 15.9mph at 7 PM. High humidity with average of 92% is anticipated, the maximum being 98% at 9 PM and 71% being its lowest at 4 PM. Barometric pressure is its highest of 30.24inHg at 12 AM, a lowest point of 30.15inHg at 5 PM with an avg 30.2inHg.

    • HI: 81°F
    • LO: 63°F
    • Rainfall: 91% | est. 0.49in
    • Snowfall: 0%
    • Wind
      8.9 mph
    • Humidity
      92% avg.
    • UV Index
      6
    • Air Quality
      Good
    • Sunrise
      06:38 AM
    • Sunset
      07:02 PM
    • Moonrise
      02:04 PM
    • Moonset
      10:38 PM
    • Moon Phase
      First Quarter
La Salle, IL Weather Forecast - 9-18-26 - Light Rain Shower

Light Rain Shower

Fri 9-18-26

Light Rain Shower with a high of 77°F and a low of 65°F. It will likey rain, having a 88% chance of a downpour with an estimated 0.76in. Wind will be moderate, blowing around 13mph on average and gusts of 21.3mph at 3 AM. High humidity with average of 92% is anticipated, the maximum being 98% at 11 PM and 83% being its lowest at 5 PM. Barometric pressure is its highest of 30.2inHg at 7 AM, a lowest point of 29.99inHg at 11 PM with an avg 30.12inHg.

    • HI: 77°F
    • LO: 65°F
    • Rainfall: 88% | est. 0.76in
    • Snowfall: 0%
    • Wind
      12.3 mph
    • Humidity
      92% avg.
    • UV Index
      7
    • Air Quality
      Good
    • Sunrise
      06:39 AM
    • Sunset
      07:01 PM
    • Moonrise
      02:58 PM
    • Moonset
      11:33 PM
    • Moon Phase
      First Quarter
La Salle, IL Weather Forecast - 9-19-26 - Sunny

Sunny

Sat 9-19-26

Sunny with a high of 85°F and a low of 71°F. There's a moderate 46% chance of rainfall with an estimated 0.03in. Wind will be moderate, blowing around 11mph on average and gusts of 31.6mph at 7 AM. The humidity will be on the higher side, averaging about 80%, the maximum being 98% at 12 AM and 57% being its lowest at 1 PM. Barometric pressure is its highest of 29.97inHg at 12 AM, a lowest point of 29.78inHg at 7 PM with an avg 29.86inHg.

    • HI: 85°F
    • LO: 71°F
    • Rainfall: 46% | est. 0.03in
    • Snowfall: 0%
    • Wind
      10.1 mph
    • Humidity
      80% avg.
    • UV Index
      7
    • Air Quality
      Good
    • Sunrise
      06:40 AM
    • Sunset
      06:59 PM
    • Moonrise
      03:43 PM
    • Moonset
      Does not set today
    • Moon Phase
      First Quarter
La Salle, IL Weather Forecast - 9-20-26 - Light Rain Shower

Light Rain Shower

Sun 9-20-26

Light Rain Shower with a high of 73°F and a low of 59°F. It will likey rain, having a 93% chance of a downpour with an estimated 0.71in. Wind will be moderate, blowing around 17mph on average and gusts of 31.8mph at 10 PM. High humidity with average of 94% is anticipated, the maximum being 97% at 4 AM and 84% being its lowest at 12 AM. Barometric pressure is its highest of 29.95inHg at 11 PM, a lowest point of 29.79inHg at 1 AM with an avg 29.87inHg.

    • HI: 73°F
    • LO: 59°F
    • Rainfall: 93% | est. 0.71in
    • Snowfall: 0%
    • Wind
      16.6 mph
    • Humidity
      94% avg.
    • UV Index
      5
    • Air Quality
      TBA
    • Sunrise
      06:41 AM
    • Sunset
      06:57 PM
    • Moonrise
      04:19 PM
    • Moonset
      12:33 AM
    • Moon Phase
      Waxing Gibbous

This 5-Day weather forecast is valid for ZIP code 61301, accurately covering the area of La Salle, IL.

Currently

Patchy Rain Nearby 70°F
29.96 inHg.
Barometer
52%
Humidity
S 28.4 mph
Wind
Patchy Rain Nearby

National Outlook

5 Day Forecast Nearby

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