As of 16:33 CDT

Weather in Merrillville, IN

55°Current weather

Merrillville, Friday, 30 October, 16:33

Light rain. Feels like 54°. High 58°, low 43°.

Pressure30.36 inHg
Wind11.5 mph NE
Humidity78%
Visibility6.2 mi
Dew point48°

Monthly outlook for Merrillville, IN: average high 66.3°, average low 55°. That is 7.7° above the climate normal for October. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 8 November (71.5°), the coolest 30 October (43.4°).

66.3°/55°
Average high / low
+7.7°
Above normal
4 / 5
Wet days / normal
1.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
30 October – 8 November66.7°54.3°+6.9°
9 November – 18 November65.8°48.7°+9.5°
19 November – 28 Novemberat normal44.9°—

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).

Sat, 3162° / 51°0.05Light rain
62 °Light rain

Merrillville, Saturday, 31 October

Light rain. High 62°, low 51°.

Pressure30.36 inHg
Wind4.5 mph SE
Humidity59%
Visibility6.2 mi
Dew point47°
Sun, 0167° / 54°0Overcast
67 °Overcast

Merrillville, Sunday, 1 November

Overcast. High 67°, low 54°.

Pressure30.33 inHg
Wind4.9 mph SE
Humidity60%
Visibility6.2 mi
Dew point53°
Mon, 0265° / 55°0Light rain
65 °Light rain

Merrillville, Monday, 2 November

Light rain. High 65°, low 55°.

Pressure30.18 inHg
Wind6.4 mph SE
Humidity76%
Visibility6.2 mi
Dew point51°
Tue, 0367° / 60°0.01Light rain
67 °Light rain

Merrillville, Tuesday, 3 November

Light rain. High 67°, low 60°.

Pressure29.94 inHg
Wind12.6 mph S
Humidity69%
Visibility6.2 mi
Dew point55°
Wed, 0468° / 63°0.22Light rain
68 °Light rain

Merrillville, Wednesday, 4 November

Light rain. High 68°, low 63°.

Pressure29.71 inHg
Wind12.1 mph S
Humidity80%
Visibility—
Dew point61°
Thu, 0567° / 55°0Overcast
67 °Overcast

Merrillville, Thursday, 5 November

Overcast. High 67°, low 55°.

Pressure29.94 inHg
Wind6.2 mph SW
Humidity41%
Visibility—
Dew point41°
Fri, 0670° / 53°0Overcast
70 °Overcast

Merrillville, Friday, 6 November

Overcast. High 70°, low 53°.

Pressure29.97 inHg
Wind10.5 mph S
Humidity43%
Visibility—
Dew point43°
Sat, 0770° / 56°0Overcast
70 °Overcast

Merrillville, Saturday, 7 November

Overcast. High 70°, low 56°.

Pressure30.06 inHg
Wind5.6 mph S
Humidity46%
Visibility—
Dew point46°
Sun, 0871° / 57°0Overcast
71 °Overcast

Merrillville, Sunday, 8 November

Overcast. High 71°, low 57°.

Pressure30.21 inHg
Wind6.7 mph NE
Humidity48%
Visibility—
Dew point49°
Mon, 0969° / 57°0Overcast
69 °Overcast

Merrillville, Monday, 9 November

Overcast. High 69°, low 57°.

Pressure30.27 inHg
Wind7.4 mph SE
Humidity51%
Visibility—
Dew point48°
Tue, 1062° / 57°0.62Rain
62 °Rain

Merrillville, Tuesday, 10 November

Rain. High 62°, low 57°.

Pressure30.09 inHg
Wind9.1 mph SE
Humidity94%
Visibility—
Dew point58°
Wed, 1169° / 56°0.03Light rain
69 °Light rain

Merrillville, Wednesday, 11 November

Light rain. High 69°, low 56°.

Pressure29.91 inHg
Wind5.9 mph S
Humidity51%
Visibility—
Dew point48°
Thu, 1271° / 56°0.01Light rain
71 °Light rain

Merrillville, Thursday, 12 November

Light rain. High 71°, low 56°.

Pressure29.80 inHg
Wind12.3 mph S
Humidity56%
Visibility—
Dew point50°
Fri, 1368° / 56°0.22Light rain
68 °Light rain

Merrillville, Friday, 13 November

Light rain. High 68°, low 56°.

Pressure29.53 inHg
Wind15.5 mph S
Humidity78%
Visibility—
Dew point58°
Sat, 1455° / 51°0.02Light rain
55 °Light rain

Merrillville, Saturday, 14 November

Light rain. High 55°, low 51°.

Pressure29.62 inHg
Wind16.6 mph SW
Humidity58%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Mon, 2346° / 33°0.1Climate normal
46 °Climate normal

Merrillville, Monday, 23 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.1 in
Chance of precipitation32%
Record high66° (1999)
Record low14° (1970)
Tue, 2444° / 32°0.08Climate normal
44 °Climate normal

Merrillville, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high44°
Average low32°
Average precipitation0.08 in
Chance of precipitation37%
Record high65° (1966)
Record low17° (1970)
Wed, 2544° / 33°0.09Climate normal
44 °Climate normal

Merrillville, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high44°
Average low33°
Average precipitation0.09 in
Chance of precipitation40%
Record high59° (1966)
Record low18° (2005)
Thu, 2645° / 32°0.13Climate normal
45 °Climate normal

Merrillville, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high45°
Average low32°
Average precipitation0.13 in
Chance of precipitation42%
Record high62° (1990)
Record low12° (1977)
Fri, 2743° / 33°0.22Climate normal
43 °Climate normal

Merrillville, Friday, 27 November

Climate normal for this date — 60-year average.

Average high43°
Average low33°
Average precipitation0.22 in
Chance of precipitation48%
Record high66° (1990)
Record low10° (1977)
Sat, 2842° / 30°0.13Climate normal
42 °Climate normal

Merrillville, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high42°
Average low30°
Average precipitation0.13 in
Chance of precipitation35%
Record high64° (1990)
Record low13° (2018)

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.