What is today's weather forecast for Ontario, IN?

Today's forecast for Ontario shows a high of 34 degrees and a low of 30 degrees Fahrenheit. Sunny, with a high near 34.

What is the 7-day weather forecast for Ontario, IN?

The 7-day forecast for Ontario shows highs from 27 to 46 degrees and lows from 21 to 30 degrees Fahrenheit. Expect precipitation on 3 days with chances of 20% or higher.

Will it rain in Ontario, IN this week?

Yes, rain is possible in Ontario this week. Precipitation chances: Wednesday (20% chance), Thursday (100% chance), Friday (20% chance).

How accurate is the Ontario weather forecast?

WeatherForYou provides highly accurate Ontario forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Ontario, IN Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Switch to Metric Units

33°F
Feels Like 23°F

Humidity 74% Dew Point 25°F Wind SSW 14 MPH Gusts 20 Barometer 29.04 in.

Solar Rad 245 w/m² UV Index 2

Report from a personal weather station 2.2 mi. W of central Ontario
at 2:05 PM Tue, Dec 16, 2025

Point Forecast at a Glance

TueDec 16

WedDec 17

ThuDec 18

100%

FriDec 19

20%

SatDec 20

SunDec 21

MonDec 22

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

Variable high temperatures with a significant drop to 27°F mid-week, recovering to 34°F. Some precipitation possible with wintry mix on at least one day.

Climate Context

Temperatures are expected to be near normal for this time of year, with highs around 36°F and lows around 23°F.

This Date in Weather History

1941 - Only two women were employed by the Weather Bureau. By 1945, more than 900 women are employed by the Weather Bureau as observers and forecasters, as a result of filling positions of men during World War II. Eleven days after Pearl Harbor, the Army requested that all weather broadcasts be discontinued. The fear was that the enemy would use this information to plan an attack on the United States.

Ontario, IN 7 Day Weather Forecast Details

Tuesday Dec 16

Day: Sunny, with a high near 34. Southwest wind around 15 mph, with gusts as high as 25 mph.

Night: Mostly cloudy, with a low around 30. Southwest wind around 15 mph, with gusts as high as 30 mph.

Wednesday Dec 17

Day: Partly sunny, with a high near 37. West wind 5 to 10 mph, with gusts as high as 20 mph.

Night: A slight chance of rain and snow between 1am and 4am, then a slight chance of rain after 4am. Mostly cloudy, with a low around 28. South wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

Thursday Dec 18

Day: Rain. High near 46. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Night: Rain, possibly mixed with snow, becoming all snow after 10pm. Low around 21. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Friday Dec 19

Day: A 20 percent chance of snow before 1pm. Mostly cloudy, with a high near 27.

Night: Mostly cloudy, with a low around 21.

Saturday Dec 20

Day: Mostly cloudy, with a high near 39.

Night: Mostly cloudy, with a low around 23.

Sunday Dec 21

Day: Partly sunny, with a high near 30.

Night: Mostly cloudy, with a low around 22.

Monday Dec 22

Day: Partly sunny, with a high near 34.

About Ontario, IN

Ontario is an unincorporated community in Lima Township, LaGrange County, Indiana.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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