As of 11:33 CDT

Weather in Lester, IL

70°Current weather

Lester, Wednesday, 21 October, 11:33

Clear. Feels like 69°. High 72°, low 44°.

Pressure30.27 inHg
Wind1.2 mph W
Humidity43%
Visibility6.2 mi
Dew point46°
Thu, 2275° / 48°0Clear
75 °Clear

Lester, Thursday, 22 October

Clear. High 75°, low 48°.

Pressure30.27 inHg
Wind3.3 mph NE
Humidity45%
Visibility6.2 mi
Dew point48°
Fri, 2371° / 50°0Clear
71 °Clear

Lester, Friday, 23 October

Clear. High 71°, low 50°.

Pressure30.33 inHg
Wind5.1 mph SE
Humidity47%
Visibility6.2 mi
Dew point48°
Sat, 2470° / 48°0Overcast
70 °Overcast

Lester, Saturday, 24 October

Overcast. High 70°, low 48°.

Pressure30.39 inHg
Wind4.3 mph SE
Humidity48%
Visibility6.2 mi
Dew point48°
Sun, 2573° / 49°0Overcast
73 °Overcast

Lester, Sunday, 25 October

Overcast. High 73°, low 49°.

Pressure30.36 inHg
Wind4.8 mph S
Humidity42%
Visibility—
Dew point46°
Mon, 2672° / 52°0Overcast
72 °Overcast

Lester, Monday, 26 October

Overcast. High 72°, low 52°.

Pressure30.27 inHg
Wind6.5 mph S
Humidity45%
Visibility—
Dew point46°
Tue, 2772° / 54°0Overcast
72 °Overcast

Lester, Tuesday, 27 October

Overcast. High 72°, low 54°.

Pressure30.24 inHg
Wind7 mph SE
Humidity38%
Visibility—
Dew point42°
Wed, 2877° / 61°0Partly cloudy
77 °Partly cloudy

Lester, Wednesday, 28 October

Partly cloudy. High 77°, low 61°.

Pressure30.12 inHg
Wind12.5 mph SW
Humidity32%
Visibility—
Dew point42°
Thu, 2968° / 56°0.16Light rain
68 °Light rain

Lester, Thursday, 29 October

Light rain. High 68°, low 56°.

Pressure30.15 inHg
Wind10.5 mph S
Humidity85%
Visibility—
Dew point58°
Fri, 3065° / 52°0.13Rain
65 °Rain

Lester, Friday, 30 October

Rain. High 65°, low 52°.

Pressure30.18 inHg
Wind10.5 mph NE
Humidity64%
Visibility—
Dew point47°
Sat, 3176° / 55°0Overcast
76 °Overcast

Lester, Saturday, 31 October

Overcast. High 76°, low 55°.

Pressure29.94 inHg
Wind19.8 mph S
Humidity45%
Visibility—
Dew point50°
Sun, 0170° / 60°0.77Rain
70 °Rain

Lester, Sunday, 1 November

Rain. High 70°, low 60°.

Pressure29.91 inHg
Wind20.7 mph S
Humidity93%
Visibility—
Dew point58°
Mon, 0263° / 57°0.53Rain
63 °Rain

Lester, Monday, 2 November

Rain. High 63°, low 57°.

Pressure29.77 inHg
Wind11.8 mph NW
Humidity95%
Visibility—
Dew point60°
Tue, 0358° / 55°0.39Rain
58 °Rain

Lester, Tuesday, 3 November

Rain. High 58°, low 55°.

Pressure29.59 inHg
Wind14.8 mph NW
Humidity92%
Visibility—
Dew point56°
Wed, 0459° / 47°0.99Rain
59 °Rain

Lester, Wednesday, 4 November

Rain. High 59°, low 47°.

Pressure29.38 inHg
Wind15.6 mph SW
Humidity96%
Visibility—
Dew point52°
Thu, 0550° / 47°0.04Light rain
50 °Light rain

Lester, Thursday, 5 November

Light rain. High 50°, low 47°.

Pressure29.68 inHg
Wind13.7 mph SW
Humidity85%
Visibility—
Dew point45°

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.