As of 15:37 CDT

Weather in Keys, IL

89°Current weather

Keys, Saturday, 8 August, 15:37

Clear. Feels like 100°. High 89°, low 70°.

Pressure30.00 inHg
Wind3.2 mph NW
Humidity64%
Visibility6.2 mi
Dew point75°

Monthly outlook for Keys, IL: average high 85.7°, average low 66.9°. That is 1.4° above the climate normal for August. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 10 August (95.6°), the coolest 23 August (55.1°).

85.7°/66.9°
Average high / low
+1.4°
Above normal
4 / 5
Wet days / normal
0.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August85.6°83.2°+1.3°
18 August – 27 August86°83.5°+1.4°
28 August – 6 Septemberat normal81.9°

August records over 66 years

99.3°14 August 2007All-time high
47.5°29 August 1986All-time low

Climate normals and records are computed from the nearest reference point — Springfield (4 mi).

Sun, 0993° / 71°0Overcast
93 °Overcast

Keys, Sunday, 9 August

Overcast. High 93°, low 71°.

Pressure29.91 inHg
Wind16.2 mph S
Humidity61%
Visibility6.2 mi
Dew point73°
Mon, 1096° / 76°0Partly cloudy
96 °Partly cloudy

Keys, Monday, 10 August

Partly cloudy. High 96°, low 76°.

Pressure29.91 inHg
Wind14.8 mph SW
Humidity53%
Visibility6.2 mi
Dew point72°
Tue, 1194° / 78°0Overcast
94 °Overcast

Keys, Tuesday, 11 August

Overcast. High 94°, low 78°.

Pressure29.83 inHg
Wind17.2 mph SW
Humidity43%
Visibility6.2 mi
Dew point66°
Wed, 1289° / 74°0Overcast
89 °Overcast

Keys, Wednesday, 12 August

Overcast. High 89°, low 74°.

Pressure29.85 inHg
Wind10.8 mph NE
Humidity64%
Visibility6.2 mi
Dew point74°
Thu, 1374° / 66°0.54Rain
74 °Rain

Keys, Thursday, 13 August

Rain. High 74°, low 66°.

Pressure29.91 inHg
Wind10.8 mph NE
Humidity90%
Visibility
Dew point71°
Fri, 1477° / 57°0Clear
77 °Clear

Keys, Friday, 14 August

Clear. High 77°, low 57°.

Pressure30.18 inHg
Wind10.3 mph NE
Humidity46%
Visibility
Dew point51°
Sat, 1577° / 57°0Partly cloudy
77 °Partly cloudy

Keys, Saturday, 15 August

Partly cloudy. High 77°, low 57°.

Pressure30.30 inHg
Wind7.9 mph SE
Humidity43%
Visibility
Dew point49°
Sun, 1681° / 58°0.01Light rain
81 °Light rain

Keys, Sunday, 16 August

Light rain. High 81°, low 58°.

Pressure30.15 inHg
Wind13.4 mph S
Humidity51%
Visibility
Dew point58°
Mon, 1786° / 68°0.11Light rain
86 °Light rain

Keys, Monday, 17 August

Light rain. High 86°, low 68°.

Pressure29.94 inHg
Wind12.5 mph SW
Humidity64%
Visibility
Dew point70°
Tue, 1889° / 71°0Overcast
89 °Overcast

Keys, Tuesday, 18 August

Overcast. High 89°, low 71°.

Pressure30.00 inHg
Wind9.6 mph E
Humidity56%
Visibility
Dew point68°
Wed, 1992° / 68°0Overcast
92 °Overcast

Keys, Wednesday, 19 August

Overcast. High 92°, low 68°.

Pressure29.91 inHg
Wind10.4 mph S
Humidity52%
Visibility
Dew point67°
Thu, 2085° / 70°0.23Rain
85 °Rain

Keys, Thursday, 20 August

Rain. High 85°, low 70°.

Pressure29.88 inHg
Wind9.5 mph NE
Humidity64%
Visibility
Dew point69°
Fri, 2184° / 66°0Partly cloudy
84 °Partly cloudy

Keys, Friday, 21 August

Partly cloudy. High 84°, low 66°.

Pressure29.94 inHg
Wind11 mph NE
Humidity51%
Visibility
Dew point61°
Sat, 2291° / 63°0.01Light rain
91 °Light rain

Keys, Saturday, 22 August

Light rain. High 91°, low 63°.

Pressure29.91 inHg
Wind18.7 mph NE
Humidity37%
Visibility
Dew point55°
Sun, 2375° / 55°0.04Light rain
75 °Light rain

Keys, Sunday, 23 August

Light rain. High 75°, low 55°.

Pressure30.15 inHg
Wind12.7 mph E
Humidity40%
Visibility
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2483° / 66°0.11Climate normal
83 °Climate normal

Keys, Monday, 24 August

Climate normal for this date — 60-year average.

Average high83°
Average low66°
Average precipitation0.11 in
Chance of precipitation25%
Record high97° (2023)
Record low55° (1966)
Tue, 2584° / 67°0.08Climate normal
84 °Climate normal

Keys, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high84°
Average low67°
Average precipitation0.08 in
Chance of precipitation32%
Record high94° (1983)
Record low56° (1966)
Wed, 2684° / 68°0.11Climate normal
84 °Climate normal

Keys, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high84°
Average low68°
Average precipitation0.11 in
Chance of precipitation32%
Record high95° (2003)
Record low55° (2025)
Thu, 2784° / 68°0.09Climate normal
84 °Climate normal

Keys, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high84°
Average low68°
Average precipitation0.09 in
Chance of precipitation32%
Record high94° (1983)
Record low56° (2025)
Fri, 2884° / 67°0.11Climate normal
84 °Climate normal

Keys, Friday, 28 August

Climate normal for this date — 60-year average.

Average high84°
Average low67°
Average precipitation0.11 in
Chance of precipitation28%
Record high96° (2013)
Record low51° (1986)
Sat, 2983° / 66°0.08Climate normal
83 °Climate normal

Keys, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high83°
Average low66°
Average precipitation0.08 in
Chance of precipitation27%
Record high95° (1984)
Record low47° (1986)
Sun, 3082° / 66°0.06Climate normal
82 °Climate normal

Keys, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high82°
Average low66°
Average precipitation0.06 in
Chance of precipitation22%
Record high96° (2013)
Record low51° (1986)
Mon, 3182° / 66°0.09Climate normal
82 °Climate normal

Keys, Monday, 31 August

Climate normal for this date — 60-year average.

Average high82°
Average low66°
Average precipitation0.09 in
Chance of precipitation33%
Record high97° (2013)
Record low53° (1967)
Tue, 0182° / 66°0.17Climate normal
82 °Climate normal

Keys, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high82°
Average low66°
Average precipitation0.17 in
Chance of precipitation25%
Record high98° (2011)
Record low50° (1967)
Wed, 0282° / 65°0.11Climate normal
82 °Climate normal

Keys, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.11 in
Chance of precipitation22%
Record high96° (2011)
Record low51° (2017)
Thu, 0382° / 65°0.09Climate normal
82 °Climate normal

Keys, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.09 in
Chance of precipitation25%
Record high94° (2007)
Record low47° (1974)
Fri, 0481° / 64°0.1Climate normal
81 °Climate normal

Keys, Friday, 4 September

Climate normal for this date — 60-year average.

Average high81°
Average low64°
Average precipitation0.1 in
Chance of precipitation25%
Record high96° (2007)
Record low49° (1974)
Sat, 0581° / 64°0.04Climate normal
81 °Climate normal

Keys, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high81°
Average low64°
Average precipitation0.04 in
Chance of precipitation20%
Record high94° (1990)
Record low50° (1974)
Sun, 0681° / 64°0.05Climate normal
81 °Climate normal

Keys, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high81°
Average low64°
Average precipitation0.05 in
Chance of precipitation23%
Record high95° (1990)
Record low50° (1962)

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 Keys, 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 Keys, 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.