US National Weather Service Central Illinois

US National Weather Service Central Illinois Official page for the National Weather Service office in Lincoln, Illinois.

NWS will be using Facebook as a supplemental channel to disseminate environmental information and promote weather awareness activities including outreach and educational efforts.

While temperatures will stay unseasonably warm into next week for September, the extreme heat will ease compared to rece...
09/04/2026

While temperatures will stay unseasonably warm into next week for September, the extreme heat will ease compared to recent days.

We have a couple more days of highs in the 90s for this afternoon, Saturday, Tuesday and Wednesday. While Sunday and Lab...
09/04/2026

We have a couple more days of highs in the 90s for this afternoon, Saturday, Tuesday and Wednesday. While Sunday and Labor Day will provide some modest relief from the heat, 90s will likely return across central and southeast IL on Tuesday and Wednesday.

We have a couple more days of highs in the mid 90s to around 100 degrees. While the second half of the holiday weekend w...
09/04/2026

We have a couple more days of highs in the mid 90s to around 100 degrees. While the second half of the holiday weekend will provide some modest relief, don't be fooled that this will be the end of the hot weather.

Here are the forecasted peak heat index values for select cities across central and southeast Illinois. An Extreme Heat...
09/03/2026

Here are the forecasted peak heat index values for select cities across central and southeast Illinois. An Extreme Heat Warning remains in effect through Saturday evening. Respect the heat, and be sure to check on those without air conditioning.

Sweltering heat continues through Saturday, with daily heat index values approaching triple digits over the weekend. Sli...
09/03/2026

Sweltering heat continues through Saturday, with daily heat index values approaching triple digits over the weekend. Slightly cooler, less hot conditions are expected to arrive to start next week.

There is another conditional severe weather threat Friday late afternoon and evening. Storms are unlikely to form, but i...
09/03/2026

There is another conditional severe weather threat Friday late afternoon and evening. Storms are unlikely to form, but if they do, then they could quickly become severe. Damaging wind gusts will be the primary hazard.

The late summer heatwave will stretch through the beginning of the weekend before conditions cool slightly by the end of...
09/03/2026

The late summer heatwave will stretch through the beginning of the weekend before conditions cool slightly by the end of the weekend. Little rain is expected, but isolated showers and storms are possible this afternoon & this evening, and again late Friday night into Saturday.

Hot and humid weather will persist through this weekend with afternoon heat index values forecast to remain near or abov...
09/03/2026

Hot and humid weather will persist through this weekend with afternoon heat index values forecast to remain near or above 100 °F. The prolonged nature of this heatwave will have cumulative health effects to those most vulnerable to heat stress.

We have a pair of chances for severe weather today and Friday. This afternoon/evening is a true boom-or-bust forecast, ...
09/03/2026

We have a pair of chances for severe weather today and Friday. This afternoon/evening is a true boom-or-bust forecast, with a low probability of storms developing. Coverage would be very isolated, but if a storm did develop, it could quickly become severe. The probability and coverage is higher late Friday night.

Why is excessive heat so dangerous, and what can you do about it?
09/02/2026

Why is excessive heat so dangerous, and what can you do about it?

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1362 State Route 10
Lincoln, IL
62656

Telephone

+12177323089

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