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August 11, 2026: Derecho produces widespread wind damage and tornadoes across northern Illinois and northwest Indiana
Interactive map of preliminary storm reports from this week's severe weather and flooding
NOAA All Hazards Radio Test Postponed

Hazardous Weather Conditions

Current conditions at

Rochelle, Rochelle Municipal-Koritz Field Airport (KRPJ)

Lat: 41.89°NLon: 89.08°WElev: 768ft.

Fog/Mist

65°F

18°C

Humidity	95%
Wind Speed	Calm
Barometer	29.92 in
Dewpoint	64°F (18°C)
Visibility	2.00 mi
Last update	13 Aug 5:35 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Oregon IL

Flood Watch August 13, 07:00pm until August 14, 10:00am

Dense Fog Advisory until August 13, 09:00am

Click here for hazard details and duration

Flood Watch

Dense Fog Advisory

Dense Fog Advisory until August 13, 09:00am
NOW until 9:00am Thu
Dense Fog Advisory
Overnight
Low: 66 °F
Areas Dense
Fog
Thursday
High: 78 °F
Chance
Showers and
Dense Fog
then Showers
Likely
Thursday Night
Low: 65 °F
Showers
Likely
Friday
High: 80 °F
Showers
Likely
Friday Night
Low: 66 °F
Chance
T-storms then
Showers
Likely
Saturday
High: 85 °F
Showers
Likely
Saturday Night
Low: 70 °F
Chance
T-storms then
Showers
Likely
Sunday
High: 83 °F
Mostly Cloudy
then Chance
T-storms

Detailed Forecast

Overnight

Areas of dense fog. Otherwise, mostly cloudy, with a low around 66. Calm wind.

Thursday

A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Widespread dense fog, mainly before 9am. Otherwise, mostly cloudy, with a high near 78. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night

Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and midnight, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 65. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.

Friday

Showers and thunderstorms likely before noon, then a chance of showers between noon and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 80. East wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%.

Friday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 66. East wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%.

Saturday

Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 85. Chance of precipitation is 60%.

Saturday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

Sunday

A chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 83.

Sunday Night

Partly cloudy, with a low around 63.

Monday

Mostly sunny, with a high near 78.

Monday Night

Mostly clear, with a low around 58.

Tuesday

Mostly sunny, with a high near 79.

Tuesday Night

A chance of showers. Partly cloudy, with a low around 62.