As of 08:44 CDT

Weather in Merriam, IL

54°Current weather

Merriam, Wednesday, 28 October, 08:44

Clear. Feels like 53°. High 75°, low 50°.

Pressure30.27 inHg
Wind0 mph N
Humidity87%
Visibility6.2 mi
Dew point50°
Thu, 2978° / 51°0Clear
78 °Clear

Merriam, Thursday, 29 October

Clear. High 78°, low 51°.

Pressure30.18 inHg
Wind8.6 mph SW
Humidity49%
Visibility6.2 mi
Dew point53°
Fri, 3077° / 53°0Overcast
77 °Overcast

Merriam, Friday, 30 October

Overcast. High 77°, low 53°.

Pressure30.24 inHg
Wind6.9 mph E
Humidity61%
Visibility6.2 mi
Dew point60°
Sat, 3168° / 59°0Overcast
68 °Overcast

Merriam, Saturday, 31 October

Overcast. High 68°, low 59°.

Pressure30.27 inHg
Wind4.1 mph E
Humidity54%
Visibility6.2 mi
Dew point49°
Sun, 0173° / 60°0Light rain
73 °Light rain

Merriam, Sunday, 1 November

Light rain. High 73°, low 60°.

Pressure30.24 inHg
Wind8.8 mph SE
Humidity55%
Visibility—
Dew point54°
Mon, 0271° / 60°0.17Rain
71 °Rain

Merriam, Monday, 2 November

Rain. High 71°, low 60°.

Pressure30.15 inHg
Wind11.3 mph S
Humidity61%
Visibility—
Dew point55°
Tue, 0363° / 61°1.21Rain
63 °Rain

Merriam, Tuesday, 3 November

Rain. High 63°, low 61°.

Pressure29.83 inHg
Wind13.8 mph SE
Humidity97%
Visibility—
Dew point60°
Wed, 0464° / 61°0.5Rain
64 °Rain

Merriam, Wednesday, 4 November

Rain. High 64°, low 61°.

Pressure29.74 inHg
Wind17 mph SE
Humidity86%
Visibility—
Dew point59°
Thu, 0567° / 60°0.65Rain
67 °Rain

Merriam, Thursday, 5 November

Rain. High 67°, low 60°.

Pressure29.59 inHg
Wind13.4 mph NW
Humidity76%
Visibility—
Dew point58°
Fri, 0661° / 49°0Mostly clear
61 °Mostly clear

Merriam, Friday, 6 November

Mostly clear. High 61°, low 49°.

Pressure29.94 inHg
Wind13.9 mph N
Humidity52%
Visibility—
Dew point42°
Sat, 0754° / 43°0Overcast
54 °Overcast

Merriam, Saturday, 7 November

Overcast. High 54°, low 43°.

Pressure30.24 inHg
Wind9.8 mph NE
Humidity48%
Visibility—
Dew point33°
Sun, 0853° / 39°0Overcast
53 °Overcast

Merriam, Sunday, 8 November

Overcast. High 53°, low 39°.

Pressure30.36 inHg
Wind9.2 mph E
Humidity44%
Visibility—
Dew point28°
Mon, 0960° / 39°0Overcast
60 °Overcast

Merriam, Monday, 9 November

Overcast. High 60°, low 39°.

Pressure30.15 inHg
Wind11.4 mph SE
Humidity47%
Visibility—
Dew point35°
Tue, 1056° / 49°0.32Rain
56 °Rain

Merriam, Tuesday, 10 November

Rain. High 56°, low 49°.

Pressure29.85 inHg
Wind19.6 mph SE
Humidity87%
Visibility—
Dew point47°
Wed, 1152° / 46°0.15Light rain
52 °Light rain

Merriam, Wednesday, 11 November

Light rain. High 52°, low 46°.

Pressure29.80 inHg
Wind17.5 mph N
Humidity90%
Visibility—
Dew point49°
Thu, 1247° / 43°0.02Light rain
47 °Light rain

Merriam, Thursday, 12 November

Light rain. High 47°, low 43°.

Pressure29.97 inHg
Wind16.3 mph N
Humidity79%
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.