As of 10:43 CDT

Weather in LaSalle, IL

49°

LaSalle, Friday, 16 October, 10:43

Overcast. Feels like 43°. High 56°, low 44°.

Pressure30.09 inHg

Wind17.3 mph NW

Humidity76%

Visibility6.2 mi

Dew point41°

See detailed hourly forecast

Sat, 1755° / 36°

55 °

LaSalle, Saturday, 17 October

Clear. High 55°, low 36°.

Pressure30.56 inHg

Wind2.4 mph SW

Humidity43%

Visibility6.2 mi

Dew point28°

Sun, 1862° / 42°

62 °

LaSalle, Sunday, 18 October

Clear. High 62°, low 42°.

Pressure30.47 inHg

Wind11.6 mph SW

Humidity50%

Visibility6.2 mi

Dew point40°

Mon, 1964° / 41°

64 °

LaSalle, Monday, 19 October

Partly cloudy. High 64°, low 41°.

Pressure30.39 inHg

Wind3.6 mph SE

Humidity50%

Visibility6.2 mi

Dew point42°

Tue, 2067° / 44°

67 °

LaSalle, Tuesday, 20 October

Clear. High 67°, low 44°.

Pressure30.36 inHg

Wind5.9 mph E

Humidity42%

Visibility—

Dew point40°

Wed, 2169° / 49°

69 °

LaSalle, Wednesday, 21 October

Clear. High 69°, low 49°.

Pressure30.30 inHg

Wind4.5 mph S

Humidity39%

Visibility—

Dew point39°

Thu, 2264° / 51°

0.06

64 °

LaSalle, Thursday, 22 October

Light rain. High 64°, low 51°.

Pressure30.15 inHg

Wind7.7 mph SW

Humidity66%

Visibility—

Dew point49°

Fri, 2363° / 49°

63 °

LaSalle, Friday, 23 October

Clear. High 63°, low 49°.

Pressure30.27 inHg

Wind13 mph E

Humidity58%

Visibility—

Dew point46°

Sat, 2462° / 45°

62 °

LaSalle, Saturday, 24 October

Overcast. High 62°, low 45°.

Pressure30.27 inHg

Wind10.3 mph SE

Humidity52%

Visibility—

Dew point40°

Sun, 2566° / 50°

66 °

LaSalle, Sunday, 25 October

Overcast. High 66°, low 50°.

Pressure30.18 inHg

Wind9.2 mph SE

Humidity42%

Visibility—

Dew point39°

Mon, 2670° / 51°

70 °

LaSalle, Monday, 26 October

Overcast. High 70°, low 51°.

Pressure30.09 inHg

Wind10.5 mph S

Humidity38%

Visibility—

Dew point39°

Tue, 2758° / 46°

58 °

LaSalle, Tuesday, 27 October

Overcast. High 58°, low 46°.

Pressure30.21 inHg

Wind10 mph W

Humidity55%

Visibility—

Dew point38°

Wed, 2863° / 47°

0.2

63 °

LaSalle, Wednesday, 28 October

Rain. High 63°, low 47°.

Pressure30.12 inHg

Wind11.3 mph SE

Humidity74%

Visibility—

Dew point47°

Thu, 2970° / 60°

0.22

70 °

LaSalle, Thursday, 29 October

Rain. High 70°, low 60°.

Pressure29.97 inHg

Wind15.6 mph SW

Humidity65%

Visibility—

Dew point56°

Fri, 3064° / 55°

64 °

LaSalle, Friday, 30 October

Overcast. High 64°, low 55°.

Pressure30.09 inHg

Wind7.8 mph NW

Humidity53%

Visibility—

Dew point46°

Sat, 3154° / 51°

1.29

54 °

LaSalle, Saturday, 31 October

Rain. High 54°, low 51°.

Pressure30.15 inHg

Wind17.7 mph E

Humidity92%

Visibility—

Dew point49°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for LaSalle, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in LaSalle, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.