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As of 12:16 EDT

Weather in Ontario, IN

59°Current weather

Ontario, Wednesday, 21 October, 12:16

Clear. Feels like 58°. High 66°, low 40°.

Pressure30.30 inHg
Wind4.6 mph S
Humidity75%
Visibility6.2 mi
Dew point51°
Thu, 2269° / 45°0Clear
69 °Clear

Ontario, Thursday, 22 October

Clear. High 69°, low 45°.

Pressure30.27 inHg
Wind2.1 mph NE
Humidity51%
Visibility6.2 mi
Dew point44°
Fri, 2364° / 45°0Clear
64 °Clear

Ontario, Friday, 23 October

Clear. High 64°, low 45°.

Pressure30.42 inHg
Wind4.5 mph SE
Humidity78%
Visibility6.2 mi
Dew point52°
Sat, 2464° / 46°0Partly cloudy
64 °Partly cloudy

Ontario, Saturday, 24 October

Partly cloudy. High 64°, low 46°.

Pressure30.45 inHg
Wind4.3 mph SE
Humidity72%
Visibility6.2 mi
Dew point51°
Sun, 2566° / 45°0Overcast
66 °Overcast

Ontario, Sunday, 25 October

Overcast. High 66°, low 45°.

Pressure30.45 inHg
Wind4.3 mph S
Humidity66%
Visibility6.2 mi
Dew point48°
Mon, 2668° / 47°0Overcast
68 °Overcast

Ontario, Monday, 26 October

Overcast. High 68°, low 47°.

Pressure30.27 inHg
Wind7.2 mph SW
Humidity53%
Visibility—
Dew point47°
Tue, 2758° / 48°0Overcast
58 °Overcast

Ontario, Tuesday, 27 October

Overcast. High 58°, low 48°.

Pressure30.36 inHg
Wind10 mph E
Humidity53%
Visibility—
Dew point39°
Wed, 2864° / 50°0.02Light rain
64 °Light rain

Ontario, Wednesday, 28 October

Light rain. High 64°, low 50°.

Pressure30.12 inHg
Wind14.7 mph SW
Humidity70%
Visibility—
Dew point49°
Thu, 2962° / 46°0.01Light rain
62 °Light rain

Ontario, Thursday, 29 October

Light rain. High 62°, low 46°.

Pressure30.15 inHg
Wind14.5 mph SW
Humidity68%
Visibility—
Dew point48°
Fri, 3057° / 39°0Partly cloudy
57 °Partly cloudy

Ontario, Friday, 30 October

Partly cloudy. High 57°, low 39°.

Pressure30.30 inHg
Wind10.1 mph E
Humidity33%
Visibility—
Dew point26°
Sat, 3161° / 42°0.02Light rain
61 °Light rain

Ontario, Saturday, 31 October

Light rain. High 61°, low 42°.

Pressure30.09 inHg
Wind16.8 mph SE
Humidity56%
Visibility—
Dew point40°
Sun, 0163° / 57°0.42Rain
63 °Rain

Ontario, Sunday, 1 November

Rain. High 63°, low 57°.

Pressure30.03 inHg
Wind19.3 mph S
Humidity80%
Visibility—
Dew point52°
Mon, 0261° / 58°1.11Rain
61 °Rain

Ontario, Monday, 2 November

Rain. High 61°, low 58°.

Pressure29.91 inHg
Wind16.9 mph SE
Humidity95%
Visibility—
Dew point57°
Tue, 0365° / 58°0.96Rain
65 °Rain

Ontario, Tuesday, 3 November

Rain. High 65°, low 58°.

Pressure29.74 inHg
Wind18.9 mph E
Humidity73%
Visibility—
Dew point55°
Wed, 0464° / 54°0.05Light rain
64 °Light rain

Ontario, Wednesday, 4 November

Light rain. High 64°, low 54°.

Pressure29.50 inHg
Wind19.7 mph SE
Humidity65%
Visibility—
Dew point51°
Thu, 0553° / 49°0.2Light rain
53 °Light rain

Ontario, Thursday, 5 November

Light rain. High 53°, low 49°.

Pressure29.62 inHg
Wind15.3 mph S
Humidity88%
Visibility—
Dew point46°

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.