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As of 16:09 CDT

Weather in Dayton, IL

80°Current weather

Dayton, Sunday, 11 October, 16:09

Clear. Feels like 81°. High 80°, low 54°.

Pressure29.91 inHg
Wind6.8 mph S
Humidity46%
Visibility6.2 mi
Dew point59°
Mon, 1285° / 62°0Clear
85 °Clear

Dayton, Monday, 12 October

Clear. High 85°, low 62°.

Pressure29.85 inHg
Wind12.1 mph SW
Humidity57%
Visibility6.2 mi
Dew point63°
Tue, 1381° / 68°0Clear
81 °Clear

Dayton, Tuesday, 13 October

Clear. High 81°, low 68°.

Pressure29.83 inHg
Wind9.1 mph W
Humidity65%
Visibility6.2 mi
Dew point66°
Wed, 1470° / 60°0.11Rain
70 °Rain

Dayton, Wednesday, 14 October

Rain. High 70°, low 60°.

Pressure30.06 inHg
Wind6.9 mph NE
Humidity74%
Visibility6.2 mi
Dew point61°
Thu, 1564° / 58°1.31Rain
64 °Rain

Dayton, Thursday, 15 October

Rain. High 64°, low 58°.

Pressure30.00 inHg
Wind6.9 mph E
Humidity96%
Visibility1.6 mi
Dew point59°
Fri, 1658° / 47°0.02Light rain
58 °Light rain

Dayton, Friday, 16 October

Light rain. High 58°, low 47°.

Pressure30.45 inHg
Wind16.9 mph NW
Humidity44%
Visibility—
Dew point35°
Sat, 1747° / 37°0Clear
47 °Clear

Dayton, Saturday, 17 October

Clear. High 47°, low 37°.

Pressure30.62 inHg
Wind6.6 mph N
Humidity39%
Visibility—
Dew point22°
Sun, 1856° / 34°0Clear
56 °Clear

Dayton, Sunday, 18 October

Clear. High 56°, low 34°.

Pressure30.45 inHg
Wind19.3 mph SW
Humidity39%
Visibility—
Dew point27°
Mon, 1964° / 42°0Clear
64 °Clear

Dayton, Monday, 19 October

Clear. High 64°, low 42°.

Pressure30.36 inHg
Wind13.9 mph SW
Humidity33%
Visibility—
Dew point30°
Tue, 2065° / 50°0Overcast
65 °Overcast

Dayton, Tuesday, 20 October

Overcast. High 65°, low 50°.

Pressure30.33 inHg
Wind10.4 mph SE
Humidity43%
Visibility—
Dew point38°
Wed, 2169° / 57°0.02Light rain
69 °Light rain

Dayton, Wednesday, 21 October

Light rain. High 69°, low 57°.

Pressure30.15 inHg
Wind15.8 mph S
Humidity61%
Visibility—
Dew point50°
Thu, 2271° / 61°0.07Light rain
71 °Light rain

Dayton, Thursday, 22 October

Light rain. High 71°, low 61°.

Pressure30.21 inHg
Wind16.2 mph SW
Humidity65%
Visibility—
Dew point58°
Fri, 2364° / 61°1.22Rain
64 °Rain

Dayton, Friday, 23 October

Rain. High 64°, low 61°.

Pressure30.09 inHg
Wind14.5 mph S
Humidity85%
Visibility—
Dew point58°
Sat, 2464° / 48°0.79Rain
64 °Rain

Dayton, Saturday, 24 October

Rain. High 64°, low 48°.

Pressure30.03 inHg
Wind12 mph NW
Humidity87%
Visibility—
Dew point50°
Sun, 2552° / 45°0Overcast
52 °Overcast

Dayton, Sunday, 25 October

Overcast. High 52°, low 45°.

Pressure30.15 inHg
Wind9.8 mph NW
Humidity58%
Visibility—
Dew point36°
Mon, 2653° / 39°0Partly cloudy
53 °Partly cloudy

Dayton, Monday, 26 October

Partly cloudy. High 53°, low 39°.

Pressure29.94 inHg
Wind16.7 mph NW
Humidity56%
Visibility—
Dew point36°

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 Dayton, IL 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 Dayton, IL 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.