textproduct: Central Illinois

KEY MESSAGES

- Seasonable tonight, but will start a warming trend for the rest of the week. By Friday, highs will be back in the low 90s with heat indices around 100 degrees.

- Dry weather lasts through at least Independence Day on Friday. A cold front is set to bring a wetter pattern for the weekend.

DISCUSSION

Issued at 236 PM CDT Tue Jul 1 2025

A high pressure center will develop as a ridging pattern settles in. This will bring us a much quieter but warming trend for this week. A cold front passed through last night, bringing nicer temperatures and less moist air for today. Highs have been in the low to mid 80s so far today with no heat indices, which is a nice change of pace. It won't last long, as the temperatures are set to gradually warm and humidity to increase through the week. By Friday, highs will be back in the low 90s with heat indices around 100 degrees.

Dry weather sticks around through the week, including the 4th of July holiday on Friday. By the weekend, a slow moving cold front will sag across the forecast area, bringing showers and thunderstorms with it. Locally heavy rain is looking probable with this wave as PWATs are showing values of 2.0-2.2 inches. This cold front will also usher in more seasonable temperatures for next week.

Copple

AVIATION

(For the 00z TAFs through 00z Wednesday Evening) Issued at 611 PM CDT Tue Jul 1 2025

VFR conditions through Wednesday afternoon, with only a few diurnal cumulus around 4-5kft. Winds drop off quickly with sunset tonight, and will average around 5 knots on Wednesday.

Geelhart

ILX WATCHES/WARNINGS/ADVISORIES

None.