Local weather forecast

Weather in Monmouth, IL

Updated 2026-08-11 12:45 local time · ZIP codes 61462

Light rain
Now77°F

Light rain

High / Low97° / 73°
Rain chance7%
Wind9 mph
Weather alerts

Active alerts

1
Heat Advisory issued August 11 at 3:48AM CDT until August 11 at 8:00PM CDT by NWS Lincoln IL

* WHAT...Heat index values up to 105. * WHERE...Portions of central, east central, southeast, and west central Illinois. * WHEN...From noon today to 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Safety instructions

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

Hourly

Next hours

NowLight rain77°4% rain
2 PMSunny96°3% rain
3 PMSunny96°2% rain
4 PMSunny97°2% rain
5 PMSunny92°3% rain
6 PMSunny93°3% rain
7 PMSunny90°4% rain
8 PMSunny86°5% rain
9 PMClear84°5% rain
10 PMClear82°5% rain
11 PMClear80°5% rain
12 AMClear78°10% rain
Forecast

3-day weather forecast

Today2026-08-11
Sunny
97° 73°Sunny
Rain 7%Gust 12 mph
Tomorrow2026-08-12
Sunny
83° 72°Sunny
Rain 68%Gust 15 mph
Thursday2026-08-13
Partly Cloudy
83° 69°Partly Cloudy
Rain 82%Gust 12 mph
Conditions

Weather details

Feels like79°F
Humidity89%
Pressure29.94 inHg
Visibility10 mi
Wind9 mph WSW
Wind gusts11 mph
Precipitation0.00 in
UV index3
Daylight

Sunrise, sunset and moon

Sunrise06:08 AM
Sunset08:06 PM
Moonrise04:09 AM
Moon phaseNew Moon
Practical guide

Weather insights for today

Umbrella not essential

Rain chance stays relatively low over the next 12 hours (up to 10%).

Light layers should work

It feels like 79°F with winds near 9 mph.

Best window: 8 PM

86°F, 5% rain chance and 4 mph wind.

Allow a little extra driving time

Visibility is around 10 mi; gusts may reach 15 mph.

Good conditions for an easy run

Current temperature is 77°F, wind 9 mph, rain chance up to 10%.

Moderate UV protection recommended

UV index is 3. Sunscreen and sunglasses are sensible for longer outdoor time.

Monmouth weather today

Light rain and 77°F in Monmouth, IL. Today's high is 97°F with a 7% rain chance. Winds are around 9 mph with gusts near 11 mph. Relative humidity is 89%, pressure is 29.94 inHg, and visibility is about 10 miles.

Tonight and tomorrow in Monmouth

Sunrise is at 06:08 AM and sunset is at 08:06 PM. Tomorrow's forecast calls for Sunny with a high near 83°F and a low near 72°F. The maximum rain chance is 68%.

Nearby

Weather near Monmouth

Illinois

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