Current Conditions

Merrillville, Indiana

60°F16°C
Drizzle

Wind

NE 9 mph15 km/h

Humidity

76%

Cloud Cover

84%

As of Tuesday, September 22, 2026 at 9:53 PM CDT

Today's Outlook

Night

Overcast, with a low around 58°F14°C. Breezy from the ENE at 9 to 10 mph14 to 15 km/h. 11% chance of drizzle.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
DrizzleHigh 63°F17°CLow 57°F14°CPrecip 0.01 in0.2 mm11%Cloud 85%Wind NE 10 mph15 km/hWednesday: Overcast and mild, with a high of 63°F17°C and morning low of 57°F14°C. Breezy from the NE at 10 to 11 mph17 to 18 km/h. Wednesday Night: Overcast, with a low around 58°F14°C. Breezy from the ENE at 9 to 10 mph14 to 15 km/h. 11% chance of drizzle.
Partly CloudyHigh 69°F20°CLow 57°F14°CPrecip 0 in0 mmCloud 65%Wind ENE 6 mph10 km/hThursday: Mostly cloudy and warm, with a high of 69°F20°C and morning low of 57°F14°C. Breezy from the ENE at 7 mph11 km/h. Thursday Night: Mostly cloudy, with a low around 58°F14°C. Breezy from the ENE at 6 to 7 mph10 to 11 km/h.
Partly CloudyHigh 68°F20°CLow 54°F12°CPrecip 0 in0 mmCloud 72%Wind ENE 6 mph9 km/hFriday: Mostly cloudy and warm, with a high of 68°F20°C and morning low of 54°F12°C. Light wind from the ENE around 5 mph9 km/h. Friday Night: Mostly cloudy, with a low around 55°F13°C. Light wind from the ENE around 6 mph10 km/h.
Partly CloudyHigh 69°F20°CLow 53°F12°CPrecip 0 in0 mmCloud 77%Wind E 5 mph9 km/hSaturday: Mostly cloudy and warm, with a high of 69°F20°C and morning low of 53°F12°C. Light wind from the E around 5 mph9 km/h. Dry air. Saturday Night: Mostly cloudy, with a low around 55°F13°C. Light wind from the E around 5 mph9 km/h.
DrizzleHigh 69°F21°CLow 55°F13°CPrecip 0.02 in0.4 mm12%Cloud 63%Wind NE 5 mph8 km/hSunday: Mostly cloudy and warm, with a high of 69°F21°C and morning low of 55°F13°C. Light wind from the NE around 5 mph8 km/h. 11% chance of drizzle in the morning. Sunday Night: Mostly cloudy, with a low around 56°F13°C. Light wind from the NE around 5 mph8 km/h. 12% chance of drizzle.
ClearHigh 72°F22°CLow 55°F13°CPrecip 0 in0 mmCloud 24%Wind NNE 5 mph8 km/hMonday: Mostly clear and warm, with a high of 72°F22°C and morning low of 55°F13°C. Light wind from the NNE around 4 mph7 km/h. Monday Night: Mostly clear, with a low around 56°F13°C. Light wind from the NE around 5 mph8 km/h.
ShowersHigh 74°F24°CLow 54°F12°CPrecip 0.06 in1.5 mm17%Cloud 67%Wind SSE 7 mph11 km/hTuesday: Mostly cloudy and warm, with a high of 74°F24°C and morning low of 54°F12°C. Breezy from the SSE at 7 mph11 km/h. Tuesday Night: Mostly cloudy, with a low around 55°F13°C. Breezy from the SE at 7 to 8 mph11 to 14 km/h. 17% chance of showers in the evening.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 2363°F17°C57°F14°C0.01 in0.2 mm· 11%85%DrizzleNE 10 mph15 km/h
ThursdaySep 2469°F20°C57°F14°C0 in0 mm· —65%Partly CloudyENE 6 mph10 km/h
FridaySep 2568°F20°C54°F12°C0 in0 mm· —72%Partly CloudyENE 6 mph9 km/h
SaturdaySep 2669°F20°C53°F12°C0 in0 mm· —77%Partly CloudyE 5 mph9 km/h
SundaySep 2769°F21°C55°F13°C0.02 in0.4 mm· 12%63%DrizzleNE 5 mph8 km/h
MondaySep 2872°F22°C55°F13°C0 in0 mm· —24%ClearNNE 5 mph8 km/h
TuesdaySep 2974°F24°C54°F12°C0.06 in1.5 mm· 17%67%ShowersSSE 7 mph11 km/h
WednesdaySep 3070°F21°C61°F16°C0.35 in8.9 mm· 37%83%Light RainS 9 mph15 km/h
ThursdayOct 169°F20°C59°F15°C0.24 in6.1 mm· 32%67%ShowersSW 9 mph15 km/h
FridayOct 269°F20°C57°F14°C0.13 in3.2 mm· 22%61%ShowersSW 8 mph14 km/h
SaturdayOct 369°F21°C57°F14°C0.1 in2.6 mm· 19%62%ShowersSSW 9 mph14 km/h
SundayOct 467°F19°C57°F14°C0.15 in3.7 mm· 22%60%ShowersWSW 10 mph16 km/h
MondayOct 566°F19°C54°F12°C0.13 in3.2 mm· 20%54%ShowersWSW 10 mph15 km/h
TuesdayOct 667°F19°C52°F11°C0.08 in2 mm· 16%46%DrizzleWSW 9 mph15 km/h
WednesdayOct 765°F18°C51°F11°C0.13 in3.4 mm· 21%45%ShowersWNW 9 mph15 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

PatternExampleDescription
/weather/{country}/{city}//weather/united-states/san-francisco/City forecast (canonical URL)
/weather/{city}//weather/tokyo/Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}//weather/united-states/california/san-francisco/With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}/weather/nearby?lat=48.1&lon=11.5Find nearest city by coordinates
/weather/{country}//weather/germany/Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 41.4828°N, 87.3328°W·Elevation: 200m·Timezone: America/Chicago·Population: 35,224