As of 17:36 CDT

Weather in Eureka, MO

90°Current weather

Eureka, Saturday, 8 August, 17:36

Clear. Feels like 102°. High 90°, low 70°.

Pressure29.97 inHg
Wind3.6 mph E
Humidity66%
Visibility6.2 mi
Dew point77°

Monthly outlook for Eureka, MO: average high 89.5°, average low 70.4°. That is 2° above the climate normal for August. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 11 August (104°), the coolest 15 August (58.3°).

89.5°/70.4°
Average high / low
+2°
Above normal
4 / 5
Wet days / normal
1.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August91.4°85.8°+3.1°
18 August – 27 August86.2°85.9°+0.1°
28 August – 6 Septemberat normal83.7°

August records over 66 years

103.6°15 August 2007All-time high
52.3°29 August 1986All-time low

Climate normals and records are computed from the nearest reference point — Winchester (9 mi).

Sun, 0999° / 72°0Overcast
99 °Overcast

Eureka, Sunday, 9 August

Overcast. High 99°, low 72°.

Pressure29.94 inHg
Wind9 mph S
Humidity42%
Visibility6.2 mi
Dew point68°
Mon, 10102° / 76°0Clear
102 °Clear

Eureka, Monday, 10 August

Clear. High 102°, low 76°.

Pressure29.94 inHg
Wind10.2 mph SW
Humidity38%
Visibility6.2 mi
Dew point67°
Tue, 11104° / 77°0.02Light rain
104 °Light rain

Eureka, Tuesday, 11 August

Light rain. High 104°, low 77°.

Pressure29.88 inHg
Wind7.2 mph SW
Humidity35%
Visibility6.2 mi
Dew point65°
Wed, 1288° / 74°0.02Light rain
88 °Light rain

Eureka, Wednesday, 12 August

Light rain. High 88°, low 74°.

Pressure29.83 inHg
Wind0.5 mph S
Humidity63%
Visibility6.2 mi
Dew point70°
Thu, 1388° / 72°0.42Rain
88 °Rain

Eureka, Thursday, 13 August

Rain. High 88°, low 72°.

Pressure29.85 inHg
Wind5.3 mph NE
Humidity57%
Visibility
Dew point69°
Fri, 1481° / 66°0.02Light rain
81 °Light rain

Eureka, Friday, 14 August

Light rain. High 81°, low 66°.

Pressure30.12 inHg
Wind8.7 mph NE
Humidity41%
Visibility
Dew point53°
Sat, 1582° / 58°0Overcast
82 °Overcast

Eureka, Saturday, 15 August

Overcast. High 82°, low 58°.

Pressure30.24 inHg
Wind7.4 mph E
Humidity41%
Visibility
Dew point51°
Sun, 1679° / 64°0.11Light rain
79 °Light rain

Eureka, Sunday, 16 August

Light rain. High 79°, low 64°.

Pressure30.15 inHg
Wind7.2 mph SE
Humidity78%
Visibility
Dew point67°
Mon, 17100° / 72°0.26Rain
100 °Rain

Eureka, Monday, 17 August

Rain. High 100°, low 72°.

Pressure29.91 inHg
Wind11.6 mph SW
Humidity40%
Visibility
Dew point65°
Tue, 1893° / 75°0Overcast
93 °Overcast

Eureka, Tuesday, 18 August

Overcast. High 93°, low 75°.

Pressure29.97 inHg
Wind7 mph NE
Humidity51%
Visibility
Dew point68°
Wed, 1994° / 73°0Partly cloudy
94 °Partly cloudy

Eureka, Wednesday, 19 August

Partly cloudy. High 94°, low 73°.

Pressure29.88 inHg
Wind5.9 mph SE
Humidity48%
Visibility
Dew point69°
Thu, 2087° / 74°0.27Rain
87 °Rain

Eureka, Thursday, 20 August

Rain. High 87°, low 74°.

Pressure29.88 inHg
Wind11.4 mph SE
Humidity59%
Visibility
Dew point69°
Fri, 2181° / 72°0.02Light rain
81 °Light rain

Eureka, Friday, 21 August

Light rain. High 81°, low 72°.

Pressure29.91 inHg
Wind6.2 mph N
Humidity66%
Visibility
Dew point67°
Sat, 2287° / 68°0Overcast
87 °Overcast

Eureka, Saturday, 22 August

Overcast. High 87°, low 68°.

Pressure29.91 inHg
Wind4.5 mph N
Humidity45%
Visibility
Dew point60°
Sun, 2376° / 64°0.02Light rain
76 °Light rain

Eureka, Sunday, 23 August

Light rain. High 76°, low 64°.

Pressure30.12 inHg
Wind8.7 mph E
Humidity60%
Visibility
Dew point57°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2486° / 68°0.08Climate normal
86 °Climate normal

Eureka, Monday, 24 August

Climate normal for this date — 60-year average.

Average high86°
Average low68°
Average precipitation0.08 in
Chance of precipitation25%
Record high99° (2023)
Record low59° (2015)
Tue, 2587° / 69°0.06Climate normal
87 °Climate normal

Eureka, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high87°
Average low69°
Average precipitation0.06 in
Chance of precipitation20%
Record high101° (2023)
Record low58° (2015)
Wed, 2686° / 69°0.15Climate normal
86 °Climate normal

Eureka, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high86°
Average low69°
Average precipitation0.15 in
Chance of precipitation32%
Record high99° (1983)
Record low57° (2025)
Thu, 2786° / 69°0.1Climate normal
86 °Climate normal

Eureka, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high86°
Average low69°
Average precipitation0.1 in
Chance of precipitation30%
Record high98° (1983)
Record low57° (2025)
Fri, 2886° / 69°0.08Climate normal
86 °Climate normal

Eureka, Friday, 28 August

Climate normal for this date — 60-year average.

Average high86°
Average low69°
Average precipitation0.08 in
Chance of precipitation28%
Record high97° (2000)
Record low55° (1967)
Sat, 2985° / 68°0.08Climate normal
85 °Climate normal

Eureka, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high85°
Average low68°
Average precipitation0.08 in
Chance of precipitation27%
Record high97° (1984)
Record low52° (1986)
Sun, 3084° / 68°0.14Climate normal
84 °Climate normal

Eureka, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high84°
Average low68°
Average precipitation0.14 in
Chance of precipitation30%
Record high98° (2013)
Record low54° (1986)
Mon, 3184° / 68°0.11Climate normal
84 °Climate normal

Eureka, Monday, 31 August

Climate normal for this date — 60-year average.

Average high84°
Average low68°
Average precipitation0.11 in
Chance of precipitation32%
Record high102° (2013)
Record low56° (1967)
Tue, 0184° / 68°0.1Climate normal
84 °Climate normal

Eureka, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high84°
Average low68°
Average precipitation0.1 in
Chance of precipitation33%
Record high99° (2011)
Record low53° (1967)
Wed, 0283° / 67°0.12Climate normal
83 °Climate normal

Eureka, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high83°
Average low67°
Average precipitation0.12 in
Chance of precipitation37%
Record high98° (2011)
Record low53° (1974)
Thu, 0383° / 67°0.1Climate normal
83 °Climate normal

Eureka, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high83°
Average low67°
Average precipitation0.1 in
Chance of precipitation30%
Record high96° (2011)
Record low50° (1974)
Fri, 0483° / 66°0.11Climate normal
83 °Climate normal

Eureka, Friday, 4 September

Climate normal for this date — 60-year average.

Average high83°
Average low66°
Average precipitation0.11 in
Chance of precipitation28%
Record high97° (1960)
Record low51° (1974)
Sat, 0583° / 66°0.04Climate normal
83 °Climate normal

Eureka, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high83°
Average low66°
Average precipitation0.04 in
Chance of precipitation20%
Record high97° (1998)
Record low53° (1974)
Sun, 0683° / 66°0.04Climate normal
83 °Climate normal

Eureka, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high83°
Average low66°
Average precipitation0.04 in
Chance of precipitation23%
Record high99° (1990)
Record low53° (2017)

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 Eureka, MO 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 Eureka, MO 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.