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As of 02:49 CDT

Weather in Lester, IL

48°Current weather

Lester, Saturday, 17 October, 02:49

Clear. Feels like 44°. High 61°, low 44°.

Pressure30.45 inHg
Wind9.7 mph N
Humidity81%
Visibility6.2 mi
Dew point43°
Sun, 1863° / 40°0Clear
63 °Clear

Lester, Sunday, 18 October

Clear. High 63°, low 40°.

Pressure30.50 inHg
Wind6.7 mph S
Humidity40%
Visibility6.2 mi
Dew point35°
Mon, 1968° / 41°0Clear
68 °Clear

Lester, Monday, 19 October

Clear. High 68°, low 41°.

Pressure30.42 inHg
Wind2.5 mph S
Humidity43%
Visibility6.2 mi
Dew point42°
Tue, 2070° / 43°0Clear
70 °Clear

Lester, Tuesday, 20 October

Clear. High 70°, low 43°.

Pressure30.36 inHg
Wind1.4 mph NE
Humidity47%
Visibility6.2 mi
Dew point45°
Wed, 2172° / 46°0Mostly clear
72 °Mostly clear

Lester, Wednesday, 21 October

Mostly clear. High 72°, low 46°.

Pressure30.27 inHg
Wind3.2 mph E
Humidity40%
Visibility—
Dew point42°
Thu, 2275° / 51°0Partly cloudy
75 °Partly cloudy

Lester, Thursday, 22 October

Partly cloudy. High 75°, low 51°.

Pressure30.18 inHg
Wind5 mph E
Humidity33%
Visibility—
Dew point39°
Fri, 2377° / 54°0Partly cloudy
77 °Partly cloudy

Lester, Friday, 23 October

Partly cloudy. High 77°, low 54°.

Pressure30.21 inHg
Wind7.8 mph SE
Humidity25%
Visibility—
Dew point35°
Sat, 2479° / 54°0Overcast
79 °Overcast

Lester, Saturday, 24 October

Overcast. High 79°, low 54°.

Pressure30.21 inHg
Wind7.3 mph S
Humidity21%
Visibility—
Dew point30°
Sun, 2573° / 57°0Overcast
73 °Overcast

Lester, Sunday, 25 October

Overcast. High 73°, low 57°.

Pressure30.24 inHg
Wind10.2 mph NE
Humidity39%
Visibility—
Dew point45°
Mon, 2673° / 53°0Overcast
73 °Overcast

Lester, Monday, 26 October

Overcast. High 73°, low 53°.

Pressure30.27 inHg
Wind10.7 mph NE
Humidity40%
Visibility—
Dew point42°
Tue, 2780° / 58°0Overcast
80 °Overcast

Lester, Tuesday, 27 October

Overcast. High 80°, low 58°.

Pressure30.15 inHg
Wind9.5 mph W
Humidity30%
Visibility—
Dew point42°
Wed, 2864° / 52°0.13Light rain
64 °Light rain

Lester, Wednesday, 28 October

Light rain. High 64°, low 52°.

Pressure30.09 inHg
Wind9.2 mph NE
Humidity91%
Visibility—
Dew point56°
Thu, 2960° / 48°0.58Rain
60 °Rain

Lester, Thursday, 29 October

Rain. High 60°, low 48°.

Pressure29.94 inHg
Wind15.5 mph SE
Humidity91%
Visibility—
Dew point47°
Fri, 3074° / 53°0.06Light rain
74 °Light rain

Lester, Friday, 30 October

Light rain. High 74°, low 53°.

Pressure29.62 inHg
Wind19.2 mph W
Humidity50%
Visibility—
Dew point53°
Sat, 3159° / 47°0Partly cloudy
59 °Partly cloudy

Lester, Saturday, 31 October

Partly cloudy. High 59°, low 47°.

Pressure30.12 inHg
Wind17 mph N
Humidity44%
Visibility—
Dew point35°
Sun, 0161° / 43°0Clear
61 °Clear

Lester, Sunday, 1 November

Clear. High 61°, low 43°.

Pressure30.15 inHg
Wind7 mph NW
Humidity44%
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 Lester, 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 Lester, 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.