As of 04:32 CDT

Weather in LaSalle, IL

43°

LaSalle, Tuesday, 20 October, 04:32

Overcast. Feels like 41°. High 71°, low 43°.

Pressure30.36 inHg

Wind3.9 mph NE

Humidity89%

Visibility6.2 mi

Dew point40°

See detailed hourly forecast

Wed, 2172° / 42°

72 °

LaSalle, Wednesday, 21 October

Clear. High 72°, low 42°.

Pressure30.27 inHg

Wind2.6 mph SW

Humidity49%

Visibility6.2 mi

Dew point47°

Thu, 2270° / 47°

70 °

LaSalle, Thursday, 22 October

Clear. High 70°, low 47°.

Pressure30.30 inHg

Wind1.9 mph E

Humidity57%

Visibility6.2 mi

Dew point53°

Fri, 2369° / 49°

69 °

LaSalle, Friday, 23 October

Clear. High 69°, low 49°.

Pressure30.33 inHg

Wind5.8 mph SE

Humidity64%

Visibility6.2 mi

Dew point53°

Sat, 2469° / 48°

69 °

LaSalle, Saturday, 24 October

Overcast. High 69°, low 48°.

Pressure30.36 inHg

Wind8.3 mph S

Humidity52%

Visibility—

Dew point46°

Sun, 2573° / 52°

73 °

LaSalle, Sunday, 25 October

Overcast. High 73°, low 52°.

Pressure30.36 inHg

Wind5.9 mph SW

Humidity52%

Visibility—

Dew point50°

Mon, 2668° / 47°

0.06

68 °

LaSalle, Monday, 26 October

Light rain. High 68°, low 47°.

Pressure30.12 inHg

Wind13.9 mph SW

Humidity43%

Visibility—

Dew point44°

Tue, 2750° / 36°

50 °

LaSalle, Tuesday, 27 October

Overcast. High 50°, low 36°.

Pressure30.39 inHg

Wind17.2 mph NW

Humidity40%

Visibility—

Dew point25°

Wed, 2841° / 27°

41 °

LaSalle, Wednesday, 28 October

Clear. High 41°, low 27°.

Pressure30.50 inHg

Wind11.6 mph W

Humidity33%

Visibility—

Dew point11°

Thu, 2950° / 29°

50 °

LaSalle, Thursday, 29 October

Clear. High 50°, low 29°.

Pressure30.15 inHg

Wind15.5 mph SW

Humidity35%

Visibility—

Dew point20°

Fri, 3053° / 42°

53 °

LaSalle, Friday, 30 October

Overcast. High 53°, low 42°.

Pressure30.03 inHg

Wind10.1 mph SW

Humidity58%

Visibility—

Dew point36°

Sat, 3153° / 41°

53 °

LaSalle, Saturday, 31 October

Clear. High 53°, low 41°.

Pressure30.15 inHg

Wind7.7 mph NW

Humidity44%

Visibility—

Dew point30°

Sun, 0152° / 38°

52 °

LaSalle, Sunday, 1 November

Overcast. High 52°, low 38°.

Pressure30.30 inHg

Wind8 mph NE

Humidity42%

Visibility—

Dew point27°

Mon, 0251° / 36°

51 °

LaSalle, Monday, 2 November

Partly cloudy. High 51°, low 36°.

Pressure30.27 inHg

Wind8.3 mph NE

Humidity46%

Visibility—

Dew point28°

Tue, 0352° / 35°

52 °

LaSalle, Tuesday, 3 November

Overcast. High 52°, low 35°.

Pressure30.18 inHg

Wind4.2 mph NE

Humidity38%

Visibility—

Dew point24°

Wed, 0456° / 40°

56 °

LaSalle, Wednesday, 4 November

Overcast. High 56°, low 40°.

Pressure30.06 inHg

Wind9.8 mph SW

Humidity62%

Visibility—

Dew point37°

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.