National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Current conditions at

Effingham, Effingham County Memorial Airport (K1H2)

Lat: 39.07°NLon: 88.53°WElev: 587ft.

Overcast

70°F

21°C

Humidity 96%
Wind Speed SW 9 mph
Barometer 29.69 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 1 Aug 10:55 am CDT
Extended Forecast for

3 Miles N Saint Elmo IL

  • Today

    Today: A chance of drizzle, mainly after 1pm. Mostly cloudy, with a high near 74. Southwest wind 5 to 7 mph.

    High: 74 °F

    Chance
    Drizzle

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm. Patchy fog between 9pm and 4am. Otherwise, cloudy, with a low around 65. Northwest wind 6 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 65 °F

    Showers
    Likely and
    Patchy Fog

  • Sunday

    Sunday: Scattered showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 78. North wind around 15 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    High: 78 °F

    Scattered
    Showers

  • Sunday Night

    Sunday Night: Cloudy during the early evening, then gradual clearing, with a low around 63. North wind 6 to 11 mph.

    Low: 63 °F

    Gradual
    Clearing

  • Monday

    Monday: Mostly sunny, with a high near 81. North wind around 7 mph.

    High: 81 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

Today
A chance of drizzle, mainly after 1pm. Mostly cloudy, with a high near 74. Southwest wind 5 to 7 mph.
Tonight
Showers likely and possibly a thunderstorm. Patchy fog between 9pm and 4am. Otherwise, cloudy, with a low around 65. Northwest wind 6 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Sunday
Scattered showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 78. North wind around 15 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Sunday Night
Cloudy during the early evening, then gradual clearing, with a low around 63. North wind 6 to 11 mph.
Monday
Mostly sunny, with a high near 81. North wind around 7 mph.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Sunny, with a high near 85.
Wednesday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 67.
Thursday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Thursday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Saint Elmo IL
 39.06°N 88.84°W (Elev. 604 ft)
Last Update:
9:06 am CDT Aug 1, 2026
Forecast Valid:
11am CDT Aug 1, 2026-6pm CDT Aug 7, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation