Weather World

St. Augustine, IL Weather Forecast

Feedback E-mail the Weather

Quick Weather Clicks

Current Conditions

Settings

Clear

34°F

Updated	5:16 am
Feels Like	37°F
Humidity	100%
Wind	N 0 mph
Barometer	30.14 in
Dew Point	34°F

Clear

1°C

Updated	5:16 am
Feels Like	3°C
Humidity	100%
Wind	N 0 km/h
Barometer	102.1 kPa
Dew Point	1°C

WX Settings

°F °C°F °C

Text IconsText Icons

Sun & Moon

Converter

Cloud Cover	0%
Wind Chill	34°F 1°C
Sunrise	6:41 AM
Sunset	4:49 PM
Moonrise	7:16 AM
Moonset	4:40 PM

Civil Twilight
6:10 AM to 6:39 AM
4:48 PM to 5:17 PM
St. Augustine IL Weather - Waxing Crescent Moon

Waxing Crescent Moon

St. Augustine Weather Forecast

REST OF TONIGHT	MONDAY	MONDAY NIGHT	TUESDAY	TUESDAY NIGHT	VETERANS DAY	WEDNESDAY NIGHT	THURSDAY	THURSDAY NIGHT	FRIDAY	FRIDAY NIGHT	SATURDAY

Mostly Clear	Sunny	Mostly Clear	Sunny	Partly Cloudy	Chance of Rain	Mostly Cloudy	Mostly Cloudy	Partly Cloudy	Mostly Clear	Mostly Clear	Mostly Clear
Lo: 35°FLo: 2°C	Hi: 65°FHi: 18°C	Lo: 45°FLo: 7°C	Hi: 61°FHi: 16°C	Lo: 41°FLo: 5°C	Hi: 59°FHi: 15°C	Hi: 45°FHi: 7°C Lo: 39°FLo: 4°C	Hi: 45°FHi: 7°C Lo: 39°FLo: 4°C	Lo: 29°FLo: -2°C	Hi: 41°FHi: 5°C Lo: 29°FLo: -2°C	Hi: 41°FHi: 5°C Lo: 29°FLo: -2°C	Hi: 49°FHi: 9°C Lo: 31°FLo: -1°C
					POP: 50%

POP = Probability of Precipitation.

Weather Outlook Updated: 242 AM CST Mon Nov 09 2026 St. Augustine, IL Weather - WeatherWorld.com

Trending Headlines

St. Augustine Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

St. Augustine Weather Map

Comprehensive Weather Maps

St. Augustine Quick Facts

National Two Day Weather Forecast

E-mail the St. Augustine Weather Forecast

Voice your opinion or tell us about page issues...

St. Augustine Forecast Discussion

Meteorlogic Glosserator
Instant definitions for any meteorological term.

Issued: 216 AM CST Mon Nov 9 2026

Key Messages

A storm system will bring showers to central Illinois Wednesday into Thursday. While rainfall will generally remain light, the latest NBM suggests a 30-50% chance of exceeding 0.25.
After a stretch of warm weather with temperatures in the 60s, much cooler conditions will return by the end of the week as highs dip into the 40s Thursday through Saturday.

Discussion

... Issued at 216 AM CST Mon Nov 9 2026

**** Mid-Week Rainfall ****

After a period of tranquil weather with high temperatures ...

Sponsored Links

Weather 101: Term of the Day

Tsunami Advisory

For products of the Pacific Tsunami Warning Center (PTWC - Pacific (except Alaska, British Columbia and Western States) Hawaii, Caribbean (except Puerto Rico, Virgin Is.), Indian Ocean): The third highest level of tsunami alert. Advisories are issued to coastal populations within areas not currently in either warning or watch status when a tsunami warning has been issued for another region of the same ocean. An Advisory indicates that an area is either outside the current warning and watch regions or that the tsunami poses no danger to that area. The Center will continue to monitor the event, issuing updates at least hourly. As conditions warrant, the Advisory will either be continued, upgraded to a watch or warning, or ended. For products of the West Coast/Alaska Tsunami Warning Center (WC/ATWC - Alaska, British Columbia and Western States, Canada, Eastern and Gulf States, Puerto Rico, U.S Virgin Islands): A tsunami advisory is issued due to the threat of a potential tsunami which may produce strong currents or waves dangerous to those in or near the water. Coastal regions historically prone to damage due to strong currents induced by tsunamis are at the greatest risk. The threat may continue for several hours after the arrival of the initial wave, but significant widespread inundation is not expected for areas under an advisory. Appropriate actions to be taken by local officials may include closing beaches, evacuating harbors and marinas, and the repositioning of ships to deep waters when there is time to safely do so. Advisories are normally updated to continue the advisory, expand/contract affected areas, upgrade to a warning, or cancel the advisory.