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As of 18:57 EDT

Weather in Ontario, IN

53°Current weather

Ontario, Friday, 16 October, 18:57

Partly cloudy. Feels like 52°. High 65°, low 47°.

Pressure30.09 inHg
Wind12.7 mph N
Humidity86%
Visibility6.2 mi
Dew point44°
Sat, 1754° / 38°0Clear
54 °Clear

Ontario, Saturday, 17 October

Clear. High 54°, low 38°.

Pressure30.53 inHg
Wind2.2 mph NE
Humidity55%
Visibility6.2 mi
Dew point33°
Sun, 1860° / 41°0Clear
60 °Clear

Ontario, Sunday, 18 October

Clear. High 60°, low 41°.

Pressure30.53 inHg
Wind10.2 mph SW
Humidity49%
Visibility6.2 mi
Dew point36°
Mon, 1964° / 40°0Clear
64 °Clear

Ontario, Monday, 19 October

Clear. High 64°, low 40°.

Pressure30.45 inHg
Wind3.3 mph S
Humidity53%
Visibility6.2 mi
Dew point41°
Tue, 2065° / 42°0Overcast
65 °Overcast

Ontario, Tuesday, 20 October

Overcast. High 65°, low 42°.

Pressure30.39 inHg
Wind2.9 mph SE
Humidity52%
Visibility6.2 mi
Dew point42°
Wed, 2166° / 43°0Clear
66 °Clear

Ontario, Wednesday, 21 October

Clear. High 66°, low 43°.

Pressure30.30 inHg
Wind4.8 mph SE
Humidity44%
Visibility—
Dew point40°
Thu, 2267° / 46°0Clear
67 °Clear

Ontario, Thursday, 22 October

Clear. High 67°, low 46°.

Pressure30.21 inHg
Wind6.2 mph S
Humidity37%
Visibility—
Dew point37°
Fri, 2371° / 52°0Clear
71 °Clear

Ontario, Friday, 23 October

Clear. High 71°, low 52°.

Pressure30.21 inHg
Wind9.6 mph E
Humidity38%
Visibility—
Dew point41°
Sat, 2464° / 47°0Overcast
64 °Overcast

Ontario, Saturday, 24 October

Overcast. High 64°, low 47°.

Pressure30.36 inHg
Wind10 mph E
Humidity54%
Visibility—
Dew point44°
Sun, 2568° / 47°0Overcast
68 °Overcast

Ontario, Sunday, 25 October

Overcast. High 68°, low 47°.

Pressure30.24 inHg
Wind8.6 mph S
Humidity46%
Visibility—
Dew point43°
Mon, 2658° / 49°0.02Light rain
58 °Light rain

Ontario, Monday, 26 October

Light rain. High 58°, low 49°.

Pressure30.09 inHg
Wind15.4 mph NW
Humidity83%
Visibility—
Dew point53°
Tue, 2754° / 40°0Clear
54 °Clear

Ontario, Tuesday, 27 October

Clear. High 54°, low 40°.

Pressure30.27 inHg
Wind16 mph NW
Humidity39%
Visibility—
Dew point28°
Wed, 2860° / 39°0Partly cloudy
60 °Partly cloudy

Ontario, Wednesday, 28 October

Partly cloudy. High 60°, low 39°.

Pressure30.24 inHg
Wind8.4 mph W
Humidity31%
Visibility—
Dew point26°
Thu, 2959° / 49°0.07Light rain
59 °Light rain

Ontario, Thursday, 29 October

Light rain. High 59°, low 49°.

Pressure29.80 inHg
Wind20.1 mph SW
Humidity60%
Visibility—
Dew point43°
Fri, 3054° / 49°0.02Light rain
54 °Light rain

Ontario, Friday, 30 October

Light rain. High 54°, low 49°.

Pressure29.85 inHg
Wind17.1 mph W
Humidity77%
Visibility—
Dew point45°
Sat, 3157° / 45°0Overcast
57 °Overcast

Ontario, Saturday, 31 October

Overcast. High 57°, low 45°.

Pressure30.00 inHg
Wind9 mph SE
Humidity55%
Visibility—
Dew point39°

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 Ontario, 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 Ontario, 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.