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As of 16:09 CDT

Weather in Jacksonville, IL

65°Current weather

Jacksonville, Sunday, 18 October, 16:09

Clear. Feels like 62°. High 65°, low 39°.

Pressure30.36 inHg
Wind10.4 mph S
Humidity36%
Visibility6.2 mi
Dew point38°
Mon, 1967° / 39°0Overcast
67 °Overcast

Jacksonville, Monday, 19 October

Overcast. High 67°, low 39°.

Pressure30.39 inHg
Wind4.1 mph S
Humidity52%
Visibility6.2 mi
Dew point44°
Tue, 2068° / 45°0Clear
68 °Clear

Jacksonville, Tuesday, 20 October

Clear. High 68°, low 45°.

Pressure30.36 inHg
Wind2.1 mph SE
Humidity53%
Visibility6.2 mi
Dew point48°
Wed, 2169° / 46°0Clear
69 °Clear

Jacksonville, Wednesday, 21 October

Clear. High 69°, low 46°.

Pressure30.30 inHg
Wind1.9 mph S
Humidity52%
Visibility6.2 mi
Dew point49°
Thu, 2269° / 48°0Clear
69 °Clear

Jacksonville, Thursday, 22 October

Clear. High 69°, low 48°.

Pressure30.30 inHg
Wind4.2 mph E
Humidity55%
Visibility6.2 mi
Dew point49°
Fri, 2369° / 49°0Overcast
69 °Overcast

Jacksonville, Friday, 23 October

Overcast. High 69°, low 49°.

Pressure30.27 inHg
Wind9.2 mph SE
Humidity52%
Visibility—
Dew point47°
Sat, 2476° / 53°0Overcast
76 °Overcast

Jacksonville, Saturday, 24 October

Overcast. High 76°, low 53°.

Pressure30.30 inHg
Wind11.7 mph S
Humidity36%
Visibility—
Dew point42°
Sun, 2575° / 58°0Overcast
75 °Overcast

Jacksonville, Sunday, 25 October

Overcast. High 75°, low 58°.

Pressure30.33 inHg
Wind8.4 mph S
Humidity40%
Visibility—
Dew point46°
Mon, 2672° / 57°0Overcast
72 °Overcast

Jacksonville, Monday, 26 October

Overcast. High 72°, low 57°.

Pressure30.30 inHg
Wind6.4 mph NE
Humidity39%
Visibility—
Dew point43°
Tue, 2774° / 56°0Overcast
74 °Overcast

Jacksonville, Tuesday, 27 October

Overcast. High 74°, low 56°.

Pressure30.24 inHg
Wind6.5 mph S
Humidity35%
Visibility—
Dew point42°
Wed, 2873° / 58°0Overcast
73 °Overcast

Jacksonville, Wednesday, 28 October

Overcast. High 73°, low 58°.

Pressure30.18 inHg
Wind8.4 mph SW
Humidity43%
Visibility—
Dew point44°
Thu, 2974° / 59°0Overcast
74 °Overcast

Jacksonville, Thursday, 29 October

Overcast. High 74°, low 59°.

Pressure30.00 inHg
Wind16.2 mph S
Humidity37%
Visibility—
Dew point44°
Fri, 3069° / 56°0.27Rain
69 °Rain

Jacksonville, Friday, 30 October

Rain. High 69°, low 56°.

Pressure29.91 inHg
Wind15.3 mph S
Humidity81%
Visibility—
Dew point60°
Sat, 3166° / 48°0Overcast
66 °Overcast

Jacksonville, Saturday, 31 October

Overcast. High 66°, low 48°.

Pressure30.09 inHg
Wind6.6 mph N
Humidity35%
Visibility—
Dew point35°
Sun, 0166° / 59°1.3Rain
66 °Rain

Jacksonville, Sunday, 1 November

Rain. High 66°, low 59°.

Pressure29.83 inHg
Wind11.1 mph S
Humidity96%
Visibility—
Dew point64°
Mon, 0265° / 45°0.95Heavy rain
65 °Heavy rain

Jacksonville, Monday, 2 November

Heavy rain. High 65°, low 45°.

Pressure30.06 inHg
Wind21.4 mph N
Humidity85%
Visibility—
Dew point48°

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 Jacksonville, 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 Jacksonville, 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.