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As of 13:25 CDT

Weather in Mendon, IL

87°Current weather

Mendon, Saturday, 8 August, 13:25

Clear. Feels like 97°. High 87°, low 69°.

Pressure30.06 inHg
Wind4.8 mph NE
Humidity68%
Visibility6.2 mi
Dew point74°
Sun, 0995° / 72°0Overcast
95 °Overcast

Mendon, Sunday, 9 August

Overcast. High 95°, low 72°.

Pressure29.91 inHg
Wind10.6 mph SW
Humidity47%
Visibility6.2 mi
Dew point69°
Mon, 1098° / 74°0Overcast
98 °Overcast

Mendon, Monday, 10 August

Overcast. High 98°, low 74°.

Pressure29.85 inHg
Wind13.8 mph SW
Humidity47%
Visibility6.2 mi
Dew point68°
Tue, 1199° / 80°0Overcast
99 °Overcast

Mendon, Tuesday, 11 August

Overcast. High 99°, low 80°.

Pressure29.77 inHg
Wind17.6 mph SW
Humidity39%
Visibility6.2 mi
Dew point66°
Wed, 1285° / 73°0.3Rain
85 °Rain

Mendon, Wednesday, 12 August

Rain. High 85°, low 73°.

Pressure29.85 inHg
Wind7 mph SE
Humidity65%
Visibility6.2 mi
Dew point70°
Thu, 1374° / 62°0.83Heavy rain
74 °Heavy rain

Mendon, Thursday, 13 August

Heavy rain. High 74°, low 62°.

Pressure29.91 inHg
Wind11.4 mph NE
Humidity93%
Visibility—
Dew point67°
Fri, 1477° / 56°0Partly cloudy
77 °Partly cloudy

Mendon, Friday, 14 August

Partly cloudy. High 77°, low 56°.

Pressure30.18 inHg
Wind7.1 mph E
Humidity46%
Visibility—
Dew point50°
Sat, 1580° / 59°0.02Light rain
80 °Light rain

Mendon, Saturday, 15 August

Light rain. High 80°, low 59°.

Pressure30.15 inHg
Wind9 mph SE
Humidity54%
Visibility—
Dew point59°
Sun, 1673° / 66°0.64Rain
73 °Rain

Mendon, Sunday, 16 August

Rain. High 73°, low 66°.

Pressure30.03 inHg
Wind12 mph SE
Humidity94%
Visibility—
Dew point69°
Mon, 1780° / 68°0Light rain
80 °Light rain

Mendon, Monday, 17 August

Light rain. High 80°, low 68°.

Pressure29.97 inHg
Wind9.4 mph E
Humidity78%
Visibility—
Dew point69°
Tue, 1889° / 68°0.07Light rain
89 °Light rain

Mendon, Tuesday, 18 August

Light rain. High 89°, low 68°.

Pressure29.88 inHg
Wind12.3 mph W
Humidity61%
Visibility—
Dew point68°
Wed, 1974° / 65°0.13Light rain
74 °Light rain

Mendon, Wednesday, 19 August

Light rain. High 74°, low 65°.

Pressure30.00 inHg
Wind13.2 mph N
Humidity91%
Visibility—
Dew point67°
Thu, 2069° / 52°0Clear
69 °Clear

Mendon, Thursday, 20 August

Clear. High 69°, low 52°.

Pressure30.27 inHg
Wind12.7 mph NE
Humidity49%
Visibility—
Dew point46°
Fri, 2172° / 51°0Clear
72 °Clear

Mendon, Friday, 21 August

Clear. High 72°, low 51°.

Pressure30.24 inHg
Wind6.7 mph NE
Humidity47%
Visibility—
Dew point47°
Sat, 2277° / 53°0Partly cloudy
77 °Partly cloudy

Mendon, Saturday, 22 August

Partly cloudy. High 77°, low 53°.

Pressure30.15 inHg
Wind8.3 mph SE
Humidity44%
Visibility—
Dew point48°
Sun, 2382° / 55°0Clear
82 °Clear

Mendon, Sunday, 23 August

Clear. High 82°, low 55°.

Pressure30.09 inHg
Wind10 mph SE
Humidity38%
Visibility—
Dew point49°

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 Mendon, 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 Mendon, 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.