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As of 03:41 EDT

Weather in Ontario, IN

58°Current weather

Ontario, Sunday, 9 August, 03:41

Clear. Feels like 58°. High 88°, low 58°.

Pressure30.03 inHg
Wind2.7 mph SW
Humidity87%
Visibility6.2 mi
Dew point54°
Mon, 1087° / 69°3.82Heavy rain
87 °Heavy rain

Ontario, Monday, 10 August

Heavy rain. High 87°, low 69°.

Pressure29.91 inHg
Wind11.8 mph SW
Humidity78%
Visibility6.2 mi
Dew point74°
Tue, 1180° / 64°1.51Heavy rain
80 °Heavy rain

Ontario, Tuesday, 11 August

Heavy rain. High 80°, low 64°.

Pressure29.88 inHg
Wind15.2 mph S
Humidity74%
Visibility6.2 mi
Dew point71°
Wed, 1280° / 64°0.02Light rain
80 °Light rain

Ontario, Wednesday, 12 August

Light rain. High 80°, low 64°.

Pressure29.80 inHg
Wind4 mph NW
Humidity73%
Visibility6.2 mi
Dew point68°
Thu, 1372° / 59°0Overcast
72 °Overcast

Ontario, Thursday, 13 August

Overcast. High 72°, low 59°.

Pressure30.03 inHg
Wind8.7 mph NW
Humidity59%
Visibility—
Dew point55°
Fri, 1472° / 55°0Overcast
72 °Overcast

Ontario, Friday, 14 August

Overcast. High 72°, low 55°.

Pressure30.18 inHg
Wind6.8 mph NE
Humidity58%
Visibility—
Dew point53°
Sat, 1573° / 55°0Overcast
73 °Overcast

Ontario, Saturday, 15 August

Overcast. High 73°, low 55°.

Pressure30.27 inHg
Wind10.8 mph SE
Humidity64%
Visibility—
Dew point57°
Sun, 1673° / 53°0.17Rain
73 °Rain

Ontario, Sunday, 16 August

Rain. High 73°, low 53°.

Pressure30.12 inHg
Wind9.6 mph E
Humidity71%
Visibility—
Dew point57°
Mon, 1777° / 64°0.01Light rain
77 °Light rain

Ontario, Monday, 17 August

Light rain. High 77°, low 64°.

Pressure30.06 inHg
Wind7.4 mph NW
Humidity66%
Visibility—
Dew point63°
Tue, 1876° / 57°0Mostly clear
76 °Mostly clear

Ontario, Tuesday, 18 August

Mostly clear. High 76°, low 57°.

Pressure30.06 inHg
Wind5.8 mph SE
Humidity60%
Visibility—
Dew point59°
Wed, 1979° / 64°0Light rain
79 °Light rain

Ontario, Wednesday, 19 August

Light rain. High 79°, low 64°.

Pressure30.00 inHg
Wind10.4 mph SE
Humidity85%
Visibility—
Dew point66°
Thu, 2088° / 70°0Overcast
88 °Overcast

Ontario, Thursday, 20 August

Overcast. High 88°, low 70°.

Pressure29.83 inHg
Wind11.6 mph S
Humidity72%
Visibility—
Dew point73°
Fri, 2190° / 71°0Clear
90 °Clear

Ontario, Friday, 21 August

Clear. High 90°, low 71°.

Pressure29.88 inHg
Wind10.1 mph NE
Humidity63%
Visibility—
Dew point71°
Sat, 2286° / 67°0Mostly clear
86 °Mostly clear

Ontario, Saturday, 22 August

Mostly clear. High 86°, low 67°.

Pressure29.94 inHg
Wind11.6 mph SE
Humidity66%
Visibility—
Dew point69°
Sun, 2391° / 74°0Overcast
91 °Overcast

Ontario, Sunday, 23 August

Overcast. High 91°, low 74°.

Pressure29.83 inHg
Wind15.3 mph SW
Humidity57%
Visibility—
Dew point70°
Mon, 2481° / 65°0.28Rain
81 °Rain

Ontario, Monday, 24 August

Rain. High 81°, low 65°.

Pressure30.03 inHg
Wind7.7 mph NE
Humidity76%
Visibility—
Dew point69°

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.