As of 15:23 CDT

Weather in Merrillville, IN

69°Current weather

Merrillville, Saturday, 24 October, 15:23

Clear. Feels like 68°. High 69°, low 47°.

Pressure30.36 inHg
Wind5.7 mph SE
Humidity50%
Visibility6.2 mi
Dew point50°

Monthly outlook for Merrillville, IN: average high 64.8°, average low 50.6°. That is 5.3° above the climate normal for October. Precipitation is expected on 8 days (about 1.8 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 30 October (77.1°), the coolest 5 November (38.7°).

64.8°/50.6°
Average high / low
+5.3°
Above normal
8 / 5
Wet days / normal
1.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
24 October – 2 November69.3°56.7°+7°
3 November – 12 November57.3°51.7°+3.1°
13 November – 22 Novemberat normal47.3°—

October records over 66 years

87.1°6 October 2007All-time high
25.7°24 October 1981All-time low

Climate normals and records are computed from the nearest reference point — Salt Creek Commons (10 mi).

Sun, 2571° / 47°0Overcast
71 °Overcast

Merrillville, Sunday, 25 October

Overcast. High 71°, low 47°.

Pressure30.42 inHg
Wind4.5 mph S
Humidity60%
Visibility6.2 mi
Dew point52°
Mon, 2663° / 48°0Overcast
63 °Overcast

Merrillville, Monday, 26 October

Overcast. High 63°, low 48°.

Pressure30.36 inHg
Wind5.3 mph N
Humidity79%
Visibility6.2 mi
Dew point57°
Tue, 2768° / 50°0Overcast
68 °Overcast

Merrillville, Tuesday, 27 October

Overcast. High 68°, low 50°.

Pressure30.27 inHg
Wind6 mph SE
Humidity73%
Visibility6.2 mi
Dew point54°
Wed, 2871° / 53°0Clear
71 °Clear

Merrillville, Wednesday, 28 October

Clear. High 71°, low 53°.

Pressure30.18 inHg
Wind8.7 mph S
Humidity60%
Visibility6.2 mi
Dew point52°
Thu, 2965° / 56°0.13Light rain
65 °Light rain

Merrillville, Thursday, 29 October

Light rain. High 65°, low 56°.

Pressure30.18 inHg
Wind7.2 mph SW
Humidity81%
Visibility—
Dew point58°
Fri, 3077° / 51°0Partly cloudy
77 °Partly cloudy

Merrillville, Friday, 30 October

Partly cloudy. High 77°, low 51°.

Pressure30.18 inHg
Wind7.4 mph SW
Humidity39%
Visibility—
Dew point43°
Sat, 3175° / 65°0Overcast
75 °Overcast

Merrillville, Saturday, 31 October

Overcast. High 75°, low 65°.

Pressure30.03 inHg
Wind14.9 mph S
Humidity33%
Visibility—
Dew point42°
Sun, 0173° / 60°0.42Rain
73 °Rain

Merrillville, Sunday, 1 November

Rain. High 73°, low 60°.

Pressure29.71 inHg
Wind16.3 mph S
Humidity48%
Visibility—
Dew point51°
Mon, 0260° / 45°0.12Light rain
60 °Light rain

Merrillville, Monday, 2 November

Light rain. High 60°, low 45°.

Pressure29.53 inHg
Wind14 mph W
Humidity62%
Visibility—
Dew point35°
Tue, 0355° / 45°0.78Rain
55 °Rain

Merrillville, Tuesday, 3 November

Rain. High 55°, low 45°.

Pressure29.50 inHg
Wind20.6 mph N
Humidity91%
Visibility—
Dew point53°
Wed, 0453° / 43°0.07Light rain
53 °Light rain

Merrillville, Wednesday, 4 November

Light rain. High 53°, low 43°.

Pressure29.65 inHg
Wind12.1 mph N
Humidity82%
Visibility—
Dew point47°
Thu, 0556° / 39°0Overcast
56 °Overcast

Merrillville, Thursday, 5 November

Overcast. High 56°, low 39°.

Pressure30.27 inHg
Wind13.4 mph S
Humidity43%
Visibility—
Dew point29°
Fri, 0657° / 51°0.06Light rain
57 °Light rain

Merrillville, Friday, 6 November

Light rain. High 57°, low 51°.

Pressure30.12 inHg
Wind13.2 mph S
Humidity57%
Visibility—
Dew point38°
Sat, 0761° / 55°0.09Light rain
61 °Light rain

Merrillville, Saturday, 7 November

Light rain. High 61°, low 55°.

Pressure30.03 inHg
Wind14.9 mph S
Humidity64%
Visibility—
Dew point43°
Sun, 0861° / 53°0.09Light rain
61 °Light rain

Merrillville, Sunday, 8 November

Light rain. High 61°, low 53°.

Pressure29.94 inHg
Wind16 mph W
Humidity36%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0952° / 40°0.15Climate normal
52 °Climate normal

Merrillville, Monday, 9 November

Climate normal for this date — 60-year average.

Average high52°
Average low40°
Average precipitation0.15 in
Chance of precipitation35%
Record high72° (1999)
Record low19° (1991)
Tue, 1051° / 39°0.16Climate normal
51 °Climate normal

Merrillville, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high51°
Average low39°
Average precipitation0.16 in
Chance of precipitation42%
Record high74° (2020)
Record low18° (2018)
Wed, 1149° / 37°0.09Climate normal
49 °Climate normal

Merrillville, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high49°
Average low37°
Average precipitation0.09 in
Chance of precipitation30%
Record high71° (1964)
Record low20° (2025)
Thu, 1247° / 35°0.07Climate normal
47 °Climate normal

Merrillville, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.07 in
Chance of precipitation30%
Record high69° (1964)
Record low3° (2019)
Fri, 1347° / 35°0.06Climate normal
47 °Climate normal

Merrillville, Friday, 13 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.06 in
Chance of precipitation20%
Record high69° (1999)
Record low3° (2019)
Sat, 1449° / 35°0.07Climate normal
49 °Climate normal

Merrillville, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high49°
Average low35°
Average precipitation0.07 in
Chance of precipitation38%
Record high69° (1971)
Record low11° (1986)
Sun, 1548° / 36°0.1Climate normal
48 °Climate normal

Merrillville, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high48°
Average low36°
Average precipitation0.1 in
Chance of precipitation37%
Record high67° (1990)
Record low21° (2019)
Mon, 1647° / 35°0.06Climate normal
47 °Climate normal

Merrillville, Monday, 16 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.06 in
Chance of precipitation22%
Record high64° (1971)
Record low22° (1997)
Tue, 1748° / 36°0.1Climate normal
48 °Climate normal

Merrillville, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high48°
Average low36°
Average precipitation0.1 in
Chance of precipitation30%
Record high69° (2016)
Record low16° (1989)
Wed, 1848° / 36°0.12Climate normal
48 °Climate normal

Merrillville, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high48°
Average low36°
Average precipitation0.12 in
Chance of precipitation28%
Record high68° (2016)
Record low12° (2014)
Thu, 1948° / 36°0.09Climate normal
48 °Climate normal

Merrillville, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high48°
Average low36°
Average precipitation0.09 in
Chance of precipitation33%
Record high67° (1991)
Record low17° (2014)
Fri, 2047° / 35°0.11Climate normal
47 °Climate normal

Merrillville, Friday, 20 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.11 in
Chance of precipitation28%
Record high63° (2007)
Record low13° (2022)
Sat, 2145° / 34°0.12Climate normal
45 °Climate normal

Merrillville, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high45°
Average low34°
Average precipitation0.12 in
Chance of precipitation33%
Record high67° (1990)
Record low12° (1964)
Sun, 2245° / 33°0.06Climate normal
45 °Climate normal

Merrillville, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high45°
Average low33°
Average precipitation0.06 in
Chance of precipitation27%
Record high68° (2010)
Record low13° (1964)

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 Merrillville, IN 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 Merrillville, IN 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.