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As of 03:00 CDT

Weather in New Dennison, IL

70°Current weather

New Dennison, Sunday, 9 August, 03:00

Clear. Feels like 71°. High 92°, low 70°.

Pressure30.03 inHg
Wind5.5 mph S
Humidity92%
Visibility6.2 mi
Dew point68°
Mon, 1097° / 75°0Clear
97 °Clear

New Dennison, Monday, 10 August

Clear. High 97°, low 75°.

Pressure30.00 inHg
Wind14.3 mph SW
Humidity42%
Visibility6.2 mi
Dew point68°
Tue, 11100° / 76°0Mostly clear
100 °Mostly clear

New Dennison, Tuesday, 11 August

Mostly clear. High 100°, low 76°.

Pressure29.94 inHg
Wind14.7 mph SW
Humidity38%
Visibility6.2 mi
Dew point67°
Wed, 12102° / 73°0.24Rain
102 °Rain

New Dennison, Wednesday, 12 August

Rain. High 102°, low 73°.

Pressure29.83 inHg
Wind14.7 mph SW
Humidity38%
Visibility6.2 mi
Dew point68°
Thu, 1395° / 72°0.1Light rain
95 °Light rain

New Dennison, Thursday, 13 August

Light rain. High 95°, low 72°.

Pressure29.91 inHg
Wind11.6 mph NE
Humidity56%
Visibility—
Dew point68°
Fri, 1485° / 69°0.1Light rain
85 °Light rain

New Dennison, Friday, 14 August

Light rain. High 85°, low 69°.

Pressure30.03 inHg
Wind13.1 mph NE
Humidity77%
Visibility—
Dew point68°
Sat, 1596° / 67°0.07Light rain
96 °Light rain

New Dennison, Saturday, 15 August

Light rain. High 96°, low 67°.

Pressure30.12 inHg
Wind10.2 mph E
Humidity50%
Visibility—
Dew point66°
Sun, 16103° / 71°0Overcast
103 °Overcast

New Dennison, Sunday, 16 August

Overcast. High 103°, low 71°.

Pressure29.97 inHg
Wind13.6 mph NW
Humidity26%
Visibility—
Dew point58°
Mon, 1794° / 72°0.11Light rain
94 °Light rain

New Dennison, Monday, 17 August

Light rain. High 94°, low 72°.

Pressure30.03 inHg
Wind10.3 mph N
Humidity49%
Visibility—
Dew point67°
Tue, 1898° / 70°0.02Light rain
98 °Light rain

New Dennison, Tuesday, 18 August

Light rain. High 98°, low 70°.

Pressure29.97 inHg
Wind10.1 mph E
Humidity39%
Visibility—
Dew point63°
Wed, 19105° / 75°0Mostly clear
105 °Mostly clear

New Dennison, Wednesday, 19 August

Mostly clear. High 105°, low 75°.

Pressure29.91 inHg
Wind12.1 mph S
Humidity36%
Visibility—
Dew point66°
Thu, 20113° / 83°0Overcast
113 °Overcast

New Dennison, Thursday, 20 August

Overcast. High 113°, low 83°.

Pressure29.85 inHg
Wind13.4 mph S
Humidity20%
Visibility—
Dew point56°
Fri, 21114° / 85°0Clear
114 °Clear

New Dennison, Friday, 21 August

Clear. High 114°, low 85°.

Pressure29.83 inHg
Wind13 mph SW
Humidity14%
Visibility—
Dew point50°
Sat, 22112° / 80°0Clear
112 °Clear

New Dennison, Saturday, 22 August

Clear. High 112°, low 80°.

Pressure29.85 inHg
Wind10.7 mph SW
Humidity18%
Visibility—
Dew point54°
Sun, 23112° / 80°0.07Light rain
112 °Light rain

New Dennison, Sunday, 23 August

Light rain. High 112°, low 80°.

Pressure29.85 inHg
Wind20 mph N
Humidity21%
Visibility—
Dew point58°
Mon, 24106° / 75°0.07Light rain
106 °Light rain

New Dennison, Monday, 24 August

Light rain. High 106°, low 75°.

Pressure29.94 inHg
Wind11.7 mph NE
Humidity28%
Visibility—
Dew point61°

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 New Dennison, 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 New Dennison, 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.