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As of 14:59 CDT

Weather in Merriam, IL

77°Current weather

Merriam, Sunday, 25 October, 14:59

Clear. Feels like 76°. High 77°, low 46°.

Pressure30.36 inHg
Wind0 mph N
Humidity29%
Visibility6.2 mi
Dew point42°
Mon, 2675° / 49°0Overcast
75 °Overcast

Merriam, Monday, 26 October

Overcast. High 75°, low 49°.

Pressure30.36 inHg
Wind5.9 mph SW
Humidity52%
Visibility6.2 mi
Dew point52°
Tue, 2772° / 49°0Overcast
72 °Overcast

Merriam, Tuesday, 27 October

Overcast. High 72°, low 49°.

Pressure30.30 inHg
Wind4.9 mph S
Humidity54%
Visibility6.2 mi
Dew point52°
Wed, 2874° / 52°0Overcast
74 °Overcast

Merriam, Wednesday, 28 October

Overcast. High 74°, low 52°.

Pressure30.24 inHg
Wind5.5 mph S
Humidity49%
Visibility6.2 mi
Dew point52°
Thu, 2977° / 53°0Clear
77 °Clear

Merriam, Thursday, 29 October

Clear. High 77°, low 53°.

Pressure30.21 inHg
Wind8.3 mph SW
Humidity49%
Visibility6.2 mi
Dew point52°
Fri, 3075° / 57°0Overcast
75 °Overcast

Merriam, Friday, 30 October

Overcast. High 75°, low 57°.

Pressure30.21 inHg
Wind5.6 mph E
Humidity60%
Visibility—
Dew point58°
Sat, 3174° / 61°0Overcast
74 °Overcast

Merriam, Saturday, 31 October

Overcast. High 74°, low 61°.

Pressure30.12 inHg
Wind8.9 mph S
Humidity49%
Visibility—
Dew point52°
Sun, 0168° / 60°0.7Rain
68 °Rain

Merriam, Sunday, 1 November

Rain. High 68°, low 60°.

Pressure30.03 inHg
Wind11.8 mph SE
Humidity88%
Visibility—
Dew point60°
Mon, 0275° / 58°0Partly cloudy
75 °Partly cloudy

Merriam, Monday, 2 November

Partly cloudy. High 75°, low 58°.

Pressure30.03 inHg
Wind11 mph S
Humidity54%
Visibility—
Dew point55°
Tue, 0371° / 61°0.13Light rain
71 °Light rain

Merriam, Tuesday, 3 November

Light rain. High 71°, low 61°.

Pressure29.88 inHg
Wind17.1 mph SW
Humidity82%
Visibility—
Dew point64°
Wed, 0469° / 51°0Clear
69 °Clear

Merriam, Wednesday, 4 November

Clear. High 69°, low 51°.

Pressure29.91 inHg
Wind11.9 mph W
Humidity26%
Visibility—
Dew point29°
Thu, 0562° / 48°0.06Light rain
62 °Light rain

Merriam, Thursday, 5 November

Light rain. High 62°, low 48°.

Pressure29.83 inHg
Wind8.2 mph W
Humidity43%
Visibility—
Dew point37°
Fri, 0663° / 46°0.01Light rain
63 °Light rain

Merriam, Friday, 6 November

Light rain. High 63°, low 46°.

Pressure29.83 inHg
Wind10.1 mph NW
Humidity48%
Visibility—
Dew point39°
Sat, 0769° / 47°0.02Light rain
69 °Light rain

Merriam, Saturday, 7 November

Light rain. High 69°, low 47°.

Pressure29.71 inHg
Wind15.1 mph SE
Humidity38%
Visibility—
Dew point38°
Sun, 0867° / 54°0.08Light rain
67 °Light rain

Merriam, Sunday, 8 November

Light rain. High 67°, low 54°.

Pressure29.56 inHg
Wind20 mph NW
Humidity45%
Visibility—
Dew point42°
Mon, 0955° / 46°0.02Light rain
55 °Light rain

Merriam, Monday, 9 November

Light rain. High 55°, low 46°.

Pressure29.97 inHg
Wind19.4 mph NW
Humidity60%
Visibility—
Dew point37°

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.