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As of 18:45 CDT

Weather in Merriam, IL

72°Current weather

Merriam, Thursday, 29 October, 18:45

Partly cloudy. Feels like 71°. High 80°, low 54°.

Pressure30.15 inHg
Wind0 mph N
Humidity56%
Visibility6.2 mi
Dew point55°
Fri, 3078° / 53°0Overcast
78 °Overcast

Merriam, Friday, 30 October

Overcast. High 78°, low 53°.

Pressure30.27 inHg
Wind6.8 mph E
Humidity63%
Visibility6.2 mi
Dew point59°
Sat, 3168° / 55°0Overcast
68 °Overcast

Merriam, Saturday, 31 October

Overcast. High 68°, low 55°.

Pressure30.30 inHg
Wind5.8 mph E
Humidity50%
Visibility6.2 mi
Dew point48°
Sun, 0167° / 57°0.02Light rain
67 °Light rain

Merriam, Sunday, 1 November

Light rain. High 67°, low 57°.

Pressure30.30 inHg
Wind9.4 mph SE
Humidity77%
Visibility6.2 mi
Dew point56°
Mon, 0269° / 57°0.02Light rain
69 °Light rain

Merriam, Monday, 2 November

Light rain. High 69°, low 57°.

Pressure30.15 inHg
Wind9.8 mph S
Humidity79%
Visibility6.2 mi
Dew point58°
Tue, 0376° / 63°0Overcast
76 °Overcast

Merriam, Tuesday, 3 November

Overcast. High 76°, low 63°.

Pressure29.91 inHg
Wind16.6 mph S
Humidity58%
Visibility—
Dew point58°
Wed, 0466° / 61°0.39Light rain
66 °Light rain

Merriam, Wednesday, 4 November

Light rain. High 66°, low 61°.

Pressure29.74 inHg
Wind15.9 mph SE
Humidity95%
Visibility—
Dew point60°
Thu, 0564° / 53°0.3Light rain
64 °Light rain

Merriam, Thursday, 5 November

Light rain. High 64°, low 53°.

Pressure29.68 inHg
Wind14.9 mph NW
Humidity59%
Visibility—
Dew point47°
Fri, 0658° / 45°0Mostly clear
58 °Mostly clear

Merriam, Friday, 6 November

Mostly clear. High 58°, low 45°.

Pressure30.06 inHg
Wind11.5 mph N
Humidity32%
Visibility—
Dew point26°
Sat, 0759° / 42°0Overcast
59 °Overcast

Merriam, Saturday, 7 November

Overcast. High 59°, low 42°.

Pressure30.18 inHg
Wind7.2 mph E
Humidity39%
Visibility—
Dew point31°
Sun, 0867° / 47°0.09Light rain
67 °Light rain

Merriam, Sunday, 8 November

Light rain. High 67°, low 47°.

Pressure29.97 inHg
Wind14.4 mph S
Humidity59%
Visibility—
Dew point49°
Mon, 0961° / 56°0.27Light rain
61 °Light rain

Merriam, Monday, 9 November

Light rain. High 61°, low 56°.

Pressure29.74 inHg
Wind14 mph S
Humidity91%
Visibility—
Dew point55°
Tue, 1063° / 53°0Overcast
63 °Overcast

Merriam, Tuesday, 10 November

Overcast. High 63°, low 53°.

Pressure30.00 inHg
Wind12.6 mph NW
Humidity64%
Visibility—
Dew point48°
Wed, 1167° / 50°0Overcast
67 °Overcast

Merriam, Wednesday, 11 November

Overcast. High 67°, low 50°.

Pressure29.85 inHg
Wind15.3 mph S
Humidity47%
Visibility—
Dew point44°
Thu, 1271° / 56°0.22Rain
71 °Rain

Merriam, Thursday, 12 November

Rain. High 71°, low 56°.

Pressure29.65 inHg
Wind17.5 mph SW
Humidity57%
Visibility—
Dew point51°
Fri, 1366° / 48°0Clear
66 °Clear

Merriam, Friday, 13 November

Clear. High 66°, low 48°.

Pressure30.06 inHg
Wind11.8 mph SE
Humidity38%
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.