As of 03:14 EDT

Weather in Costonia, OH

71°Current weather

Costonia, Sunday, 9 August, 03:14

Clear. Feels like 72°. High 86°, low 69°.

Pressure30.03 inHg
Wind1 mph S
Humidity92%
Visibility6.2 mi
Dew point68°
Mon, 1083° / 67°0.72Heavy rain
83 °Heavy rain

Costonia, Monday, 10 August

Heavy rain. High 83°, low 67°.

Pressure30.00 inHg
Wind7.8 mph SW
Humidity75%
Visibility6.2 mi
Dew point67°
Tue, 1186° / 64°1.09Heavy rain
86 °Heavy rain

Costonia, Tuesday, 11 August

Heavy rain. High 86°, low 64°.

Pressure29.97 inHg
Wind7.2 mph SW
Humidity70%
Visibility6.2 mi
Dew point67°
Wed, 1282° / 65°0.06Light rain
82 °Light rain

Costonia, Wednesday, 12 August

Light rain. High 82°, low 65°.

Pressure29.83 inHg
Wind6.1 mph SW
Humidity96%
Visibility6.2 mi
Dew point69°
Thu, 1379° / 58°0.08Light rain
79 °Light rain

Costonia, Thursday, 13 August

Light rain. High 79°, low 58°.

Pressure29.91 inHg
Wind11.9 mph NW
Humidity43%
Visibility
Dew point53°
Fri, 1475° / 54°0Overcast
75 °Overcast

Costonia, Friday, 14 August

Overcast. High 75°, low 54°.

Pressure30.09 inHg
Wind8 mph NW
Humidity44%
Visibility
Dew point50°
Sat, 1574° / 53°0Overcast
74 °Overcast

Costonia, Saturday, 15 August

Overcast. High 74°, low 53°.

Pressure30.24 inHg
Wind7 mph N
Humidity39%
Visibility
Dew point45°
Sun, 1670° / 52°0.04Light rain
70 °Light rain

Costonia, Sunday, 16 August

Light rain. High 70°, low 52°.

Pressure30.18 inHg
Wind3.4 mph S
Humidity81%
Visibility
Dew point54°
Mon, 1779° / 53°0Mostly clear
79 °Mostly clear

Costonia, Monday, 17 August

Mostly clear. High 79°, low 53°.

Pressure30.03 inHg
Wind6.5 mph NW
Humidity40%
Visibility
Dew point50°
Tue, 1882° / 59°0Clear
82 °Clear

Costonia, Tuesday, 18 August

Clear. High 82°, low 59°.

Pressure30.03 inHg
Wind6.4 mph NW
Humidity42%
Visibility
Dew point54°
Wed, 1985° / 59°0Partly cloudy
85 °Partly cloudy

Costonia, Wednesday, 19 August

Partly cloudy. High 85°, low 59°.

Pressure30.06 inHg
Wind5.2 mph S
Humidity44%
Visibility
Dew point58°
Thu, 2090° / 64°0Mostly clear
90 °Mostly clear

Costonia, Thursday, 20 August

Mostly clear. High 90°, low 64°.

Pressure29.94 inHg
Wind8.8 mph SW
Humidity42%
Visibility
Dew point60°
Fri, 2196° / 73°0Mostly clear
96 °Mostly clear

Costonia, Friday, 21 August

Mostly clear. High 96°, low 73°.

Pressure29.83 inHg
Wind9.9 mph N
Humidity50%
Visibility
Dew point71°
Sat, 2292° / 64°0Mostly clear
92 °Mostly clear

Costonia, Saturday, 22 August

Mostly clear. High 92°, low 64°.

Pressure29.94 inHg
Wind5.3 mph NE
Humidity33%
Visibility
Dew point55°
Sun, 2396° / 68°0Mostly clear
96 °Mostly clear

Costonia, Sunday, 23 August

Mostly clear. High 96°, low 68°.

Pressure29.88 inHg
Wind7.4 mph S
Humidity41%
Visibility
Dew point64°
Mon, 2495° / 75°0.07Light rain
95 °Light rain

Costonia, Monday, 24 August

Light rain. High 95°, low 75°.

Pressure29.97 inHg
Wind8.8 mph NW
Humidity49%
Visibility
Dew point70°

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 Costonia, OH 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 Costonia, OH 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.