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As of 15:38 CDT

Weather in Merriam, IL

72°Current weather

Merriam, Monday, 19 October, 15:38

Clear. Feels like 70°. High 72°, low 40°.

Pressure30.33 inHg
Wind3.4 mph E
Humidity30%
Visibility6.2 mi
Dew point39°
Tue, 2072° / 44°0Clear
72 °Clear

Merriam, Tuesday, 20 October

Clear. High 72°, low 44°.

Pressure30.36 inHg
Wind2.5 mph NE
Humidity44%
Visibility6.2 mi
Dew point45°
Wed, 2171° / 42°0Clear
71 °Clear

Merriam, Wednesday, 21 October

Clear. High 71°, low 42°.

Pressure30.27 inHg
Wind0.5 mph NE
Humidity48%
Visibility6.2 mi
Dew point48°
Thu, 2271° / 49°0Clear
71 °Clear

Merriam, Thursday, 22 October

Clear. High 71°, low 49°.

Pressure30.27 inHg
Wind5.4 mph NE
Humidity48%
Visibility6.2 mi
Dew point49°
Fri, 2367° / 49°0Clear
67 °Clear

Merriam, Friday, 23 October

Clear. High 67°, low 49°.

Pressure30.33 inHg
Wind6.4 mph E
Humidity55%
Visibility6.2 mi
Dew point46°
Sat, 2468° / 46°0Overcast
68 °Overcast

Merriam, Saturday, 24 October

Overcast. High 68°, low 46°.

Pressure30.39 inHg
Wind7.7 mph E
Humidity38%
Visibility—
Dew point37°
Sun, 2575° / 50°0Overcast
75 °Overcast

Merriam, Sunday, 25 October

Overcast. High 75°, low 50°.

Pressure30.36 inHg
Wind9.1 mph SW
Humidity38%
Visibility—
Dew point42°
Mon, 2676° / 58°0Overcast
76 °Overcast

Merriam, Monday, 26 October

Overcast. High 76°, low 58°.

Pressure30.27 inHg
Wind7.7 mph SW
Humidity32%
Visibility—
Dew point40°
Tue, 2766° / 48°0Overcast
66 °Overcast

Merriam, Tuesday, 27 October

Overcast. High 66°, low 48°.

Pressure30.21 inHg
Wind14 mph N
Humidity54%
Visibility—
Dew point48°
Wed, 2851° / 37°0.01Light rain
51 °Light rain

Merriam, Wednesday, 28 October

Light rain. High 51°, low 37°.

Pressure30.39 inHg
Wind14.4 mph N
Humidity37%
Visibility—
Dew point24°
Thu, 2953° / 30°0Clear
53 °Clear

Merriam, Thursday, 29 October

Clear. High 53°, low 30°.

Pressure30.42 inHg
Wind7.4 mph N
Humidity22%
Visibility—
Dew point10°
Fri, 3061° / 34°0Partly cloudy
61 °Partly cloudy

Merriam, Friday, 30 October

Partly cloudy. High 61°, low 34°.

Pressure30.33 inHg
Wind9.1 mph S
Humidity18%
Visibility—
Dew point12°
Sat, 3167° / 41°0Overcast
67 °Overcast

Merriam, Saturday, 31 October

Overcast. High 67°, low 41°.

Pressure30.21 inHg
Wind13.4 mph SW
Humidity17%
Visibility—
Dew point16°
Sun, 0166° / 45°0Overcast
66 °Overcast

Merriam, Sunday, 1 November

Overcast. High 66°, low 45°.

Pressure30.18 inHg
Wind9.5 mph SW
Humidity20%
Visibility—
Dew point20°
Mon, 0268° / 50°0.19Rain
68 °Rain

Merriam, Monday, 2 November

Rain. High 68°, low 50°.

Pressure30.06 inHg
Wind11.5 mph N
Humidity26%
Visibility—
Dew point29°
Tue, 0361° / 42°0Mostly clear
61 °Mostly clear

Merriam, Tuesday, 3 November

Mostly clear. High 61°, low 42°.

Pressure30.06 inHg
Wind8.9 mph N
Humidity56%
Visibility—
Dew point40°

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 Merriam, 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 Merriam, 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.