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As of 04:02 CDT

Weather in Dayton, IL

38°Current weather

Dayton, Saturday, 17 October, 04:02

Clear. Feels like 33°. High 56°, low 37°.

Pressure30.47 inHg
Wind6.9 mph N
Humidity88%
Visibility6.2 mi
Dew point34°
Sun, 1862° / 41°0Clear
62 °Clear

Dayton, Sunday, 18 October

Clear. High 62°, low 41°.

Pressure30.45 inHg
Wind12 mph SW
Humidity50%
Visibility6.2 mi
Dew point40°
Mon, 1964° / 42°0Overcast
64 °Overcast

Dayton, Monday, 19 October

Overcast. High 64°, low 42°.

Pressure30.39 inHg
Wind4.2 mph S
Humidity52%
Visibility6.2 mi
Dew point43°
Tue, 2067° / 41°0Overcast
67 °Overcast

Dayton, Tuesday, 20 October

Overcast. High 67°, low 41°.

Pressure30.39 inHg
Wind3.9 mph SE
Humidity47%
Visibility6.2 mi
Dew point44°
Wed, 2169° / 47°0.02Light rain
69 °Light rain

Dayton, Wednesday, 21 October

Light rain. High 69°, low 47°.

Pressure30.27 inHg
Wind4.6 mph SW
Humidity47%
Visibility—
Dew point44°
Thu, 2270° / 48°0Clear
70 °Clear

Dayton, Thursday, 22 October

Clear. High 70°, low 48°.

Pressure30.24 inHg
Wind3.9 mph E
Humidity48%
Visibility—
Dew point46°
Fri, 2372° / 54°0Overcast
72 °Overcast

Dayton, Friday, 23 October

Overcast. High 72°, low 54°.

Pressure30.18 inHg
Wind8.8 mph SE
Humidity35%
Visibility—
Dew point40°
Sat, 2470° / 56°0Overcast
70 °Overcast

Dayton, Saturday, 24 October

Overcast. High 70°, low 56°.

Pressure30.18 inHg
Wind12 mph S
Humidity38%
Visibility—
Dew point40°
Sun, 2574° / 57°0Overcast
74 °Overcast

Dayton, Sunday, 25 October

Overcast. High 74°, low 57°.

Pressure30.00 inHg
Wind11 mph SW
Humidity36%
Visibility—
Dew point43°
Mon, 2657° / 41°0.63Rain
57 °Rain

Dayton, Monday, 26 October

Rain. High 57°, low 41°.

Pressure30.15 inHg
Wind13 mph NW
Humidity82%
Visibility—
Dew point40°
Tue, 2751° / 37°0Overcast
51 °Overcast

Dayton, Tuesday, 27 October

Overcast. High 51°, low 37°.

Pressure30.45 inHg
Wind7 mph SE
Humidity49%
Visibility—
Dew point29°
Wed, 2856° / 47°0.53Rain
56 °Rain

Dayton, Wednesday, 28 October

Rain. High 56°, low 47°.

Pressure30.09 inHg
Wind20.7 mph SW
Humidity71%
Visibility—
Dew point38°
Thu, 2959° / 49°0.02Light rain
59 °Light rain

Dayton, Thursday, 29 October

Light rain. High 59°, low 49°.

Pressure30.00 inHg
Wind25.4 mph W
Humidity60%
Visibility—
Dew point44°
Fri, 3062° / 45°0Overcast
62 °Overcast

Dayton, Friday, 30 October

Overcast. High 62°, low 45°.

Pressure30.06 inHg
Wind15.3 mph S
Humidity53%
Visibility—
Dew point40°
Sat, 3169° / 56°0.53Rain
69 °Rain

Dayton, Saturday, 31 October

Rain. High 69°, low 56°.

Pressure29.62 inHg
Wind20.9 mph S
Humidity68%
Visibility—
Dew point56°
Sun, 0167° / 49°0.04Light rain
67 °Light rain

Dayton, Sunday, 1 November

Light rain. High 67°, low 49°.

Pressure29.94 inHg
Wind17.8 mph SW
Humidity61%
Visibility—
Dew point40°

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.