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As of 13:10 CDT

Weather in Forreston, IL

77°Current weather

Forreston, Saturday, 8 August, 13:10

Clear. Feels like 74°. High 81°, low 66°.

Pressure30.03 inHg
Wind6.7 mph NW
Humidity1%
Visibility6.2 mi
Dew point24°
Sun, 0985° / 63°0.7Heavy rain
85 °Heavy rain

Forreston, Sunday, 9 August

Heavy rain. High 85°, low 63°.

Pressure29.91 inHg
Wind14.7 mph SE
Humidity95%
Visibility6.2 mi
Dew point68°
Mon, 1083° / 68°0.24Rain
83 °Rain

Forreston, Monday, 10 August

Rain. High 83°, low 68°.

Pressure29.88 inHg
Wind4.3 mph S
Humidity74%
Visibility6.2 mi
Dew point72°
Tue, 1184° / 69°0.02Light rain
84 °Light rain

Forreston, Tuesday, 11 August

Light rain. High 84°, low 69°.

Pressure29.74 inHg
Wind9.1 mph W
Humidity79%
Visibility6.2 mi
Dew point71°
Wed, 1281° / 65°0.05Light rain
81 °Light rain

Forreston, Wednesday, 12 August

Light rain. High 81°, low 65°.

Pressure29.85 inHg
Wind1.4 mph N
Humidity73%
Visibility6.2 mi
Dew point71°
Thu, 1371° / 58°0.06Light rain
71 °Light rain

Forreston, Thursday, 13 August

Light rain. High 71°, low 58°.

Pressure29.94 inHg
Wind10.5 mph N
Humidity73%
Visibility—
Dew point58°
Fri, 1473° / 53°0Clear
73 °Clear

Forreston, Friday, 14 August

Clear. High 73°, low 53°.

Pressure30.15 inHg
Wind9.2 mph W
Humidity59%
Visibility—
Dew point55°
Sat, 1575° / 57°0Overcast
75 °Overcast

Forreston, Saturday, 15 August

Overcast. High 75°, low 57°.

Pressure30.21 inHg
Wind6.6 mph SW
Humidity65%
Visibility—
Dew point58°
Sun, 1670° / 60°0.02Light rain
70 °Light rain

Forreston, Sunday, 16 August

Light rain. High 70°, low 60°.

Pressure30.15 inHg
Wind9.6 mph E
Humidity77%
Visibility—
Dew point61°
Mon, 1771° / 62°0.07Light rain
71 °Light rain

Forreston, Monday, 17 August

Light rain. High 71°, low 62°.

Pressure30.00 inHg
Wind9.8 mph E
Humidity92%
Visibility—
Dew point64°
Tue, 1877° / 65°0.04Light rain
77 °Light rain

Forreston, Tuesday, 18 August

Light rain. High 77°, low 65°.

Pressure29.88 inHg
Wind7.8 mph W
Humidity83%
Visibility—
Dew point70°
Wed, 1969° / 55°0Overcast
69 °Overcast

Forreston, Wednesday, 19 August

Overcast. High 69°, low 55°.

Pressure30.03 inHg
Wind14.4 mph NE
Humidity85%
Visibility—
Dew point60°
Thu, 2066° / 46°0Clear
66 °Clear

Forreston, Thursday, 20 August

Clear. High 66°, low 46°.

Pressure30.30 inHg
Wind12.4 mph N
Humidity55%
Visibility—
Dew point46°
Fri, 2170° / 48°0Clear
70 °Clear

Forreston, Friday, 21 August

Clear. High 70°, low 48°.

Pressure30.24 inHg
Wind6.8 mph W
Humidity54%
Visibility—
Dew point48°
Sat, 2273° / 52°0Overcast
73 °Overcast

Forreston, Saturday, 22 August

Overcast. High 73°, low 52°.

Pressure30.12 inHg
Wind8.9 mph SW
Humidity57%
Visibility—
Dew point53°
Sun, 2373° / 56°0Overcast
73 °Overcast

Forreston, Sunday, 23 August

Overcast. High 73°, low 56°.

Pressure30.12 inHg
Wind7.9 mph SW
Humidity62%
Visibility—
Dew point56°

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 Forreston, 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 Forreston, 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.