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As of 23:33 CDT

Weather in Jacksonville, IL

39°Current weather

Jacksonville, Saturday, 17 October, 23:33

Clear. Feels like 37°. High 58°, low 38°.

Pressure30.45 inHg
Wind3.4 mph SE
Humidity87%
Visibility6.2 mi
Dew point36°
Sun, 1862° / 39°0Clear
62 °Clear

Jacksonville, Sunday, 18 October

Clear. High 62°, low 39°.

Pressure30.45 inHg
Wind9.9 mph S
Humidity43%
Visibility6.2 mi
Dew point36°
Mon, 1965° / 43°0Clear
65 °Clear

Jacksonville, Monday, 19 October

Clear. High 65°, low 43°.

Pressure30.39 inHg
Wind2.5 mph S
Humidity51%
Visibility6.2 mi
Dew point44°
Tue, 2068° / 44°0Overcast
68 °Overcast

Jacksonville, Tuesday, 20 October

Overcast. High 68°, low 44°.

Pressure30.39 inHg
Wind2.4 mph SE
Humidity50%
Visibility6.2 mi
Dew point46°
Wed, 2170° / 46°0Clear
70 °Clear

Jacksonville, Wednesday, 21 October

Clear. High 70°, low 46°.

Pressure30.27 inHg
Wind3.4 mph S
Humidity51%
Visibility6.2 mi
Dew point48°
Thu, 2271° / 50°0Clear
71 °Clear

Jacksonville, Thursday, 22 October

Clear. High 71°, low 50°.

Pressure30.24 inHg
Wind5.8 mph NE
Humidity46%
Visibility—
Dew point46°
Fri, 2374° / 51°0Partly cloudy
74 °Partly cloudy

Jacksonville, Friday, 23 October

Partly cloudy. High 74°, low 51°.

Pressure30.27 inHg
Wind10.1 mph SE
Humidity44%
Visibility—
Dew point45°
Sat, 2478° / 58°0Overcast
78 °Overcast

Jacksonville, Saturday, 24 October

Overcast. High 78°, low 58°.

Pressure30.21 inHg
Wind13.4 mph S
Humidity24%
Visibility—
Dew point34°
Sun, 2561° / 49°0Overcast
61 °Overcast

Jacksonville, Sunday, 25 October

Overcast. High 61°, low 49°.

Pressure30.42 inHg
Wind12.9 mph NW
Humidity48%
Visibility—
Dew point38°
Mon, 2659° / 38°0Overcast
59 °Overcast

Jacksonville, Monday, 26 October

Overcast. High 59°, low 38°.

Pressure30.42 inHg
Wind6.7 mph N
Humidity30%
Visibility—
Dew point23°
Tue, 2769° / 44°0Overcast
69 °Overcast

Jacksonville, Tuesday, 27 October

Overcast. High 69°, low 44°.

Pressure30.30 inHg
Wind11.3 mph S
Humidity30%
Visibility—
Dew point30°
Wed, 2868° / 54°0Overcast
68 °Overcast

Jacksonville, Wednesday, 28 October

Overcast. High 68°, low 54°.

Pressure30.09 inHg
Wind15.6 mph S
Humidity49%
Visibility—
Dew point44°
Thu, 2973° / 62°0.11Light rain
73 °Light rain

Jacksonville, Thursday, 29 October

Light rain. High 73°, low 62°.

Pressure29.83 inHg
Wind20 mph SW
Humidity43%
Visibility—
Dew point48°
Fri, 3070° / 59°0.05Light rain
70 °Light rain

Jacksonville, Friday, 30 October

Light rain. High 70°, low 59°.

Pressure29.94 inHg
Wind13.6 mph SW
Humidity64%
Visibility—
Dew point54°
Sat, 3170° / 56°0.4Rain
70 °Rain

Jacksonville, Saturday, 31 October

Rain. High 70°, low 56°.

Pressure29.94 inHg
Wind15.2 mph SE
Humidity64%
Visibility—
Dew point56°
Sun, 0167° / 55°0.06Light rain
67 °Light rain

Jacksonville, Sunday, 1 November

Light rain. High 67°, low 55°.

Pressure29.94 inHg
Wind16.5 mph W
Humidity32%
Visibility—
Dew point35°

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.