As of 12:17 CDT

Weather in Washington, IL

84°Current weather

Washington, Monday, 12 October, 12:17

Partly cloudy. Feels like 87°. High 86°, low 62°.

Pressure29.88 inHg
Wind8 mph S
Humidity57%
Visibility6.2 mi
Dew point67°

Monthly outlook for Washington, IL: average high 70.1°, average low 54.3°. That is 5° above the climate normal for October. Precipitation is expected on 3 days (about 1.3 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 13 October (86.3°), the coolest 26 October (40.6°).

70.1°/54.3°
Average high / low
+5°
Above normal
3 / 5
Wet days / normal
1.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
12 October – 21 October70.3°62.3°+4.5°
22 October – 31 October69.7°58.5°+6.2°
1 November – 10 Novemberat normal53.8°—

October records over 66 years

89.1°3 October 2025All-time high
21°22 October 1976All-time low

Climate normals and records are computed from the nearest reference point — Peoria (10 mi).

Tue, 1386° / 64°0.01Light rain
86 °Light rain

Washington, Tuesday, 13 October

Light rain. High 86°, low 64°.

Pressure29.88 inHg
Wind5.8 mph W
Humidity64%
Visibility6.2 mi
Dew point65°
Wed, 1475° / 60°0.01Light rain
75 °Light rain

Washington, Wednesday, 14 October

Light rain. High 75°, low 60°.

Pressure30.06 inHg
Wind5.9 mph NE
Humidity72%
Visibility6.2 mi
Dew point63°
Thu, 1564° / 59°0.4Rain
64 °Rain

Washington, Thursday, 15 October

Rain. High 64°, low 59°.

Pressure30.03 inHg
Wind5.7 mph NE
Humidity97%
Visibility2.9 mi
Dew point62°
Fri, 1659° / 48°0Overcast
59 °Overcast

Washington, Friday, 16 October

Overcast. High 59°, low 48°.

Pressure30.39 inHg
Wind18 mph N
Humidity50%
Visibility6.2 mi
Dew point38°
Sat, 1760° / 43°0Clear
60 °Clear

Washington, Saturday, 17 October

Clear. High 60°, low 43°.

Pressure30.47 inHg
Wind5.8 mph SW
Humidity42%
Visibility—
Dew point33°
Sun, 1863° / 41°0Clear
63 °Clear

Washington, Sunday, 18 October

Clear. High 63°, low 41°.

Pressure30.30 inHg
Wind15 mph S
Humidity32%
Visibility—
Dew point28°
Mon, 1961° / 48°0.04Light rain
61 °Light rain

Washington, Monday, 19 October

Light rain. High 61°, low 48°.

Pressure30.21 inHg
Wind12.7 mph S
Humidity53%
Visibility—
Dew point43°
Tue, 2072° / 53°0.11Light rain
72 °Light rain

Washington, Tuesday, 20 October

Light rain. High 72°, low 53°.

Pressure30.21 inHg
Wind8.5 mph E
Humidity57%
Visibility—
Dew point51°
Wed, 2177° / 58°0Clear
77 °Clear

Washington, Wednesday, 21 October

Clear. High 77°, low 58°.

Pressure30.24 inHg
Wind9 mph SE
Humidity58%
Visibility—
Dew point57°
Thu, 2279° / 64°0Overcast
79 °Overcast

Washington, Thursday, 22 October

Overcast. High 79°, low 64°.

Pressure30.27 inHg
Wind13.9 mph S
Humidity49%
Visibility—
Dew point55°
Fri, 2378° / 67°0Overcast
78 °Overcast

Washington, Friday, 23 October

Overcast. High 78°, low 67°.

Pressure30.24 inHg
Wind13.5 mph S
Humidity53%
Visibility—
Dew point56°
Sat, 2477° / 64°0.74Rain
77 °Rain

Washington, Saturday, 24 October

Rain. High 77°, low 64°.

Pressure29.94 inHg
Wind18.7 mph S
Humidity53%
Visibility—
Dew point57°
Sun, 2566° / 50°0Overcast
66 °Overcast

Washington, Sunday, 25 October

Overcast. High 66°, low 50°.

Pressure30.00 inHg
Wind19.2 mph W
Humidity67%
Visibility—
Dew point44°
Mon, 2656° / 41°0Clear
56 °Clear

Washington, Monday, 26 October

Clear. High 56°, low 41°.

Pressure30.21 inHg
Wind14.4 mph NW
Humidity43%
Visibility—
Dew point30°
Tue, 2762° / 46°0Clear
62 °Clear

Washington, Tuesday, 27 October

Clear. High 62°, low 46°.

Pressure29.83 inHg
Wind19.2 mph N
Humidity53%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2857° / 42°0.04Climate normal
57 °Climate normal

Washington, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high57°
Average low42°
Average precipitation0.04 in
Chance of precipitation20%
Record high74° (1999)
Record low25° (1976)
Thu, 2957° / 42°0.08Climate normal
57 °Climate normal

Washington, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high57°
Average low42°
Average precipitation0.08 in
Chance of precipitation25%
Record high78° (2024)
Record low23° (1980)
Fri, 3059° / 43°0.11Climate normal
59 °Climate normal

Washington, Friday, 30 October

Climate normal for this date — 60-year average.

Average high59°
Average low43°
Average precipitation0.11 in
Chance of precipitation28%
Record high79° (1971)
Record low25° (1988)
Sat, 3158° / 43°0.17Climate normal
58 °Climate normal

Washington, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high58°
Average low43°
Average precipitation0.17 in
Chance of precipitation42%
Record high74° (1974)
Record low24° (2019)
Sun, 0157° / 42°0.18Climate normal
57 °Climate normal

Washington, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high57°
Average low42°
Average precipitation0.18 in
Chance of precipitation32%
Record high77° (2016)
Record low22° (2019)
Mon, 0255° / 41°0.08Climate normal
55 °Climate normal

Washington, Monday, 2 November

Climate normal for this date — 60-year average.

Average high55°
Average low41°
Average precipitation0.08 in
Chance of precipitation33%
Record high75° (1961)
Record low23° (1991)
Tue, 0354° / 40°0.09Climate normal
54 °Climate normal

Washington, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high54°
Average low40°
Average precipitation0.09 in
Chance of precipitation23%
Record high74° (1964)
Record low17° (1991)
Wed, 0454° / 41°0.08Climate normal
54 °Climate normal

Washington, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high54°
Average low41°
Average precipitation0.08 in
Chance of precipitation23%
Record high74° (1978)
Record low16° (1991)
Thu, 0553° / 39°0.13Climate normal
53 °Climate normal

Washington, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high53°
Average low39°
Average precipitation0.13 in
Chance of precipitation25%
Record high74° (1978)
Record low19° (1991)
Fri, 0653° / 38°0.09Climate normal
53 °Climate normal

Washington, Friday, 6 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.09 in
Chance of precipitation25%
Record high71° (2020)
Record low24° (1991)
Sat, 0753° / 38°0.04Climate normal
53 °Climate normal

Washington, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.04 in
Chance of precipitation17%
Record high69° (1966)
Record low15° (1991)
Sun, 0853° / 38°0.05Climate normal
53 °Climate normal

Washington, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.05 in
Chance of precipitation20%
Record high75° (1999)
Record low12° (1991)
Mon, 0954° / 39°0.14Climate normal
54 °Climate normal

Washington, Monday, 9 November

Climate normal for this date — 60-year average.

Average high54°
Average low39°
Average precipitation0.14 in
Chance of precipitation35%
Record high74° (2020)
Record low16° (1991)
Tue, 1051° / 37°0.15Climate normal
51 °Climate normal

Washington, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high51°
Average low37°
Average precipitation0.15 in
Chance of precipitation32%
Record high73° (2020)
Record low17° (2018)

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 Washington, 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 Washington, 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.