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Streator, IL 61364 Weather
Current conditions
Forecast for this hour (no station report in the last two hours)
Forecast
10-day-
Today
Sunny. High near 75, with temperatures falling to around 72 in the afternoon. South southwest wind 0 to 5 mph.
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Tonight
Mostly clear, with a low around 48. Wind around 0 mph.
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Thursday
Sunny. High near 76, with temperatures falling to around 74 in the afternoon. Northeast wind 0 to 5 mph.
National Weather Service forecast updated 5 hrs ago.
Hourly
Hourly forecast- Now72°
- 3 PM73°
- 4 PM74°
- 5 PM72°
- 6 PM69°
- 7 PM65°
- 8 PM60°
- 9 PM58°
- 10 PM56°
- 11 PM54°
- Thu12 AM53°
- 1 AM52°
- 2 AM51°
- 3 AM51°
- 4 AM50°
- 5 AM49°
- 6 AM48°
- 7 AM47°
- 8 AM50°
- 9 AM56°
- 10 AM62°
- 11 AM67°
- 12 PM70°
- 1 PM73°
10-day forecast
Details- TodayOct 21Sunny48°75°
- ThuOct 22Sunny45°76°
- FriOct 23Sunny49°74°
- SatOct 24Mostly Sunny51°74°
- SunOct 25Partly Sunny51°76°
- MonOct 26Partly Sunny13%47°71°
- TueOct 27Partly Sunny then Slight Chance Rain Showers15%42°61°
- WedOct 28Partly cloudy47°67°
- ThuOct 29Heavy rain0.33 in40°66°
- FriOct 30Sunny35°58°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news near Streator
More weather news-
Serious touch of cold weather arrived Friday nightMother Nature is giving our area another reminder about cold weather. A frost advisory was in effect overnight into Saturday with temperatures dipping down to the middle 30's Saturday morning. Drivers were scrapping car…
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A great week ahead for Central IllinoisWAND DECATUR, Ill. (WAND) – A wonderful weekend across Central Illinois carries into the start of the workweek. Overnight lows dip back into the upper 30s tonight with a small risk for patchy frost, though coverage will…
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Overnight Frost Advisory for parts of Illinois, NW IndianaCBS News Colorado 10pm Saturday CBS News Detroit Weekend 11pm CBS News Los Angeles Weekend 9pm CBS News Philadelphia Weekend 11pm KDKA News Weekend 11pm CBS News Texas Weekend 10pm
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Frost advisory back in effect for Central IllinoisWAND DECATUR, Ill. (WAND) – Another cool day starts the weekend across Central Illinois with highs Saturday only reaching the upper 50s under plenty of sunny skies. Strong high pressure remains in control keeping skies…
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Chicago, IL – Illinois residents wondering when the first measurable snowfall of the 2026 winter season might arrive could see dramatically different conditions depending on where they live. While Chicago typically…
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Frosty Nights Ahead Before a Warm-Up Arrives in Central IllinoisCENTRAL ILLINOIS (25News Now) - Central Illinois is in for a chilly weekend, with temperatures dropping into the 30s and frost possible overnight. But after a cool start to the weekend, a warming trend will bring…
Air quality
Air quality is satisfactory, and air pollution poses little or no risk.
Forecast
- WedModerate
- ThuModerate
- FriModerate
Bloomington and Normal, IL reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyOttawa 4sw, records since 1890. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
Forecasters' discussion
From the National Weather Service office in LOT, issued 2 hrs ago
Key Messages
- The dry and unseasonably mild weather will continue through the upcoming weekend.
Discussion
Issued at 157 AM CDT Wed Oct 21 2026
GOES nighttime microphysics RGB shows fog developing across Lake County IL into extreme southeast WI. Given the fog is developing a couple hours earlier than last night and with similarly favorable conditions to early Tuesday morning, seems likely that dense fog will continue to develop and expand through sunrise. The northern and northwest suburbs seem most likely for dense fog development, but given the low dewpoint depressions, calm winds, and clear skies, fog will probably expand south into the heart of the metro too, though confidence is low in how far south it develops. A dense fog advisory will likely be issued sooner rather than later and will probably need to be expanded as fog expands. Similar to Tuesday morning, fog should burn off by around 14z.
Very little day to day change in the weather is expected through the upcoming weekend. A very weak southwest gradient today may limit the inland penetration of the lake breeze this afternoon compared to Tuesday. This would have implications on areal coverage of fog tonight, as the added moisture from the marine layer has been contributing to the fog development. Temperatures will likely be a couple degrees warmer today.
Another weak surface high will track across the upper Great Lakes in SE Canada Thursday into Friday, likely resulting in a very weak easterly gradient favoring a deeper inland penetration of the weak lake breeze Thursday and possibly Friday as well. This could tee things up for a bit more areal coverage of dense fog Fri and Sat morning.
The omega block and the amplitude of the upper ridge is still progged to break down early next week which at least opens the door to the possibility of a cold frontal passage and perhaps some rain at some point early next week. Medium range guidance often struggles with the breaking down of blocking patterns and there is still considerable ensemble spread, so the magnitude and timing of any potential return to more seasonable temperatures is still a low confidence item. As is any potential increase in rain chances.
- Izzi
Aviation
Issued at 1217 PM CDT Wed Oct 21 2026
Expect generally VFR conditions with a few mid-level clouds through the period as high pressure drifts over the area. However, as has been observed during the past few mornings, MIFG/BCFG is likely at RFD/DPA and VFR BR is possible at ORD late tonight through sunrise Thursday.
Light SW winds are expected this afternoon, though a weak lake breeze may wash out and turn winds SE 5 knots or less over ORD and especially MDW toward sunset. Winds will become calm or light and VRB tonight into Thursday morning, with a lake- enhanced NE wind shift likely by Thursday afternoon.
Kluber
Lot Watches
IL...None. IN...None. LM...None.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.