This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 37.4603°N, -89.2470°.
The 10-day span for Anna runs from a high near 42° on Friday down to 18° overnight on Saturday. Models drop roughly 1.1 in of precipitation across the stretch — watch Wednesday (78%). Wind is the one to watch: gusts to 36 mph around Friday. The NWS alert board for this area is currently clear. Right now Anna is running about 55° warmer than O'Fallon. Longer view: variable mid-latitude weather in every season.
Anna, IL · Elev 630 ft · 37.46°N, 89.25°W · Illinois · Forecast computed for these exact coordinates
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