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As of 20:15 CDT

Weather in Delta, IL

78°Current weather

Delta, Saturday, 8 August, 20:15

Clear. Feels like 79°. High 89°, low 72°.

Pressure30.06 inHg
Wind6.4 mph S
Humidity84%
Visibility6.2 mi
Dew point73°
Sun, 0993° / 73°0Clear
93 °Clear

Delta, Sunday, 9 August

Clear. High 93°, low 73°.

Pressure30.03 inHg
Wind12 mph SW
Humidity49%
Visibility6.2 mi
Dew point69°
Mon, 1097° / 74°0Overcast
97 °Overcast

Delta, Monday, 10 August

Overcast. High 97°, low 74°.

Pressure30.03 inHg
Wind12.2 mph SW
Humidity51%
Visibility6.2 mi
Dew point69°
Tue, 11100° / 76°0Mostly clear
100 °Mostly clear

Delta, Tuesday, 11 August

Mostly clear. High 100°, low 76°.

Pressure29.91 inHg
Wind14.4 mph SW
Humidity38%
Visibility6.2 mi
Dew point67°
Wed, 1288° / 74°0.33Rain
88 °Rain

Delta, Wednesday, 12 August

Rain. High 88°, low 74°.

Pressure29.88 inHg
Wind4.2 mph W
Humidity73%
Visibility6.2 mi
Dew point69°
Thu, 1380° / 72°0.69Rain
80 °Rain

Delta, Thursday, 13 August

Rain. High 80°, low 72°.

Pressure29.94 inHg
Wind10.6 mph NE
Humidity97%
Visibility—
Dew point71°
Fri, 1481° / 70°1.09Heavy rain
81 °Heavy rain

Delta, Friday, 14 August

Heavy rain. High 81°, low 70°.

Pressure30.00 inHg
Wind11.2 mph NE
Humidity74%
Visibility—
Dew point71°
Sat, 1577° / 67°0.13Light rain
77 °Light rain

Delta, Saturday, 15 August

Light rain. High 77°, low 67°.

Pressure30.18 inHg
Wind12.5 mph E
Humidity74%
Visibility—
Dew point66°
Sun, 1692° / 67°0.04Light rain
92 °Light rain

Delta, Sunday, 16 August

Light rain. High 92°, low 67°.

Pressure30.03 inHg
Wind8.8 mph NW
Humidity54%
Visibility—
Dew point69°
Mon, 1788° / 71°0.11Light rain
88 °Light rain

Delta, Monday, 17 August

Light rain. High 88°, low 71°.

Pressure30.00 inHg
Wind7.2 mph NW
Humidity75%
Visibility—
Dew point72°
Tue, 1890° / 70°0.16Light rain
90 °Light rain

Delta, Tuesday, 18 August

Light rain. High 90°, low 70°.

Pressure29.97 inHg
Wind11.9 mph NW
Humidity57%
Visibility—
Dew point70°
Wed, 1990° / 70°0Overcast
90 °Overcast

Delta, Wednesday, 19 August

Overcast. High 90°, low 70°.

Pressure29.91 inHg
Wind9 mph N
Humidity48%
Visibility—
Dew point65°
Thu, 2080° / 63°0Clear
80 °Clear

Delta, Thursday, 20 August

Clear. High 80°, low 63°.

Pressure30.00 inHg
Wind10.6 mph NE
Humidity48%
Visibility—
Dew point55°
Fri, 2178° / 60°0.07Light rain
78 °Light rain

Delta, Friday, 21 August

Light rain. High 78°, low 60°.

Pressure30.03 inHg
Wind8.7 mph E
Humidity56%
Visibility—
Dew point54°
Sat, 2296° / 64°0.17Light rain
96 °Light rain

Delta, Saturday, 22 August

Light rain. High 96°, low 64°.

Pressure29.83 inHg
Wind13.8 mph W
Humidity51%
Visibility—
Dew point65°
Sun, 2394° / 71°0.04Light rain
94 °Light rain

Delta, Sunday, 23 August

Light rain. High 94°, low 71°.

Pressure29.94 inHg
Wind14.2 mph SW
Humidity43%
Visibility—
Dew point65°

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 Delta, 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 Delta, 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.