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As of 13:06 CDT

Weather in Fullerton, IL

86°Current weather

Fullerton, Saturday, 8 August, 13:06

Partly cloudy. Feels like 96°. High 87°, low 70°.

Pressure30.03 inHg
Wind6.1 mph NW
Humidity74%
Visibility6.2 mi
Dew point75°
Sun, 0992° / 67°0Partly cloudy
92 °Partly cloudy

Fullerton, Sunday, 9 August

Partly cloudy. High 92°, low 67°.

Pressure29.97 inHg
Wind14.5 mph S
Humidity71%
Visibility6.2 mi
Dew point73°
Mon, 1089° / 71°0.23Rain
89 °Rain

Fullerton, Monday, 10 August

Rain. High 89°, low 71°.

Pressure29.91 inHg
Wind14.6 mph SW
Humidity72%
Visibility6.2 mi
Dew point75°
Tue, 1189° / 72°0.01Light rain
89 °Light rain

Fullerton, Tuesday, 11 August

Light rain. High 89°, low 72°.

Pressure29.83 inHg
Wind18.4 mph SW
Humidity71%
Visibility6.2 mi
Dew point74°
Wed, 1282° / 71°0.26Rain
82 °Rain

Fullerton, Wednesday, 12 August

Rain. High 82°, low 71°.

Pressure29.83 inHg
Wind11.4 mph SE
Humidity94%
Visibility6.2 mi
Dew point69°
Thu, 1370° / 60°1.2Heavy rain
70 °Heavy rain

Fullerton, Thursday, 13 August

Heavy rain. High 70°, low 60°.

Pressure29.85 inHg
Wind12.2 mph N
Humidity97%
Visibility—
Dew point68°
Fri, 1473° / 55°0Clear
73 °Clear

Fullerton, Friday, 14 August

Clear. High 73°, low 55°.

Pressure30.18 inHg
Wind4.5 mph NE
Humidity61%
Visibility—
Dew point56°
Sat, 1575° / 57°0Overcast
75 °Overcast

Fullerton, Saturday, 15 August

Overcast. High 75°, low 57°.

Pressure30.21 inHg
Wind6.7 mph SE
Humidity66%
Visibility—
Dew point59°
Sun, 1665° / 59°0.23Rain
65 °Rain

Fullerton, Sunday, 16 August

Rain. High 65°, low 59°.

Pressure30.12 inHg
Wind10 mph SE
Humidity95%
Visibility—
Dew point62°
Mon, 1772° / 64°0Light rain
72 °Light rain

Fullerton, Monday, 17 August

Light rain. High 72°, low 64°.

Pressure29.97 inHg
Wind9.2 mph E
Humidity96%
Visibility—
Dew point68°
Tue, 1883° / 64°0.02Light rain
83 °Light rain

Fullerton, Tuesday, 18 August

Light rain. High 83°, low 64°.

Pressure29.91 inHg
Wind10.4 mph SW
Humidity73%
Visibility—
Dew point70°
Wed, 1981° / 62°0Overcast
81 °Overcast

Fullerton, Wednesday, 19 August

Overcast. High 81°, low 62°.

Pressure29.94 inHg
Wind13.9 mph NE
Humidity74%
Visibility—
Dew point70°
Thu, 2067° / 52°0Mostly clear
67 °Mostly clear

Fullerton, Thursday, 20 August

Mostly clear. High 67°, low 52°.

Pressure30.21 inHg
Wind13.5 mph N
Humidity61%
Visibility—
Dew point51°
Fri, 2169° / 47°0Clear
69 °Clear

Fullerton, Friday, 21 August

Clear. High 69°, low 47°.

Pressure30.24 inHg
Wind7.7 mph NE
Humidity57%
Visibility—
Dew point50°
Sat, 2272° / 52°0Mostly clear
72 °Mostly clear

Fullerton, Saturday, 22 August

Mostly clear. High 72°, low 52°.

Pressure30.15 inHg
Wind3.2 mph W
Humidity56%
Visibility—
Dew point53°
Sun, 2375° / 54°0Clear
75 °Clear

Fullerton, Sunday, 23 August

Clear. High 75°, low 54°.

Pressure30.12 inHg
Wind5.5 mph SW
Humidity56%
Visibility—
Dew point54°

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 Fullerton, 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 Fullerton, 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.