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

Fire Weather Concerns and Severe Thunderstorms through the Weekend

Dry and windy conditions, and some dry thunderstorms and lightning, may support hazardous fire activity in the northern Plains, high southern Plains and the Southwest this weekend. An active severe weather pattern is forecast for portions of the central and southern High Plains into the Upper Midwest through early the part of next week. Damaging winds, large hail, and tornadoes are possible. Read More >

Hazardous Weather Conditions

Current conditions at

Galesburg Municipal Airport (KGBG)

Lat: 40.93°NLon: 90.43°WElev: 751ft.

Fair

67°F

19°C

Humidity 80%
Wind Speed S 10 mph
Barometer 29.77 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 16 May 2:15 am CDT
Extended Forecast for

Monmouth IL

  • Overnight

    Overnight: Showers and thunderstorms likely, mainly after 5am. Mostly cloudy, with a steady temperature around 67. Southwest wind around 10 mph. Chance of precipitation is 60%.

    Low: 67 °F

    T-storms
    Likely

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 82. South wind 5 to 10 mph.

    High: 82 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms, mainly between 8pm and 4am. Increasing clouds, with a low around 62. Southeast wind around 10 mph.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 88. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 88 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 68. Breezy. Chance of precipitation is 30%.

    Low: 68 °F

    Mostly Clear
    and Breezy
    then Chance
    T-storms

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 85. Breezy. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 85 °F

    Showers and
    Breezy

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Breezy. Chance of precipitation is 70%.

    Low: 66 °F

    Showers
    Likely and
    Breezy

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. Breezy.

    High: 80 °F

    Mostly Cloudy
    and Breezy
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Chance
    Showers

Detailed Forecast

Overnight
Showers and thunderstorms likely, mainly after 5am. Mostly cloudy, with a steady temperature around 67. Southwest wind around 10 mph. Chance of precipitation is 60%.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 82. South wind 5 to 10 mph.
Saturday Night
A 50 percent chance of showers and thunderstorms, mainly between 8pm and 4am. Increasing clouds, with a low around 62. Southeast wind around 10 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 88. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 68. Breezy. Chance of precipitation is 30%.
Monday
Showers and possibly a thunderstorm. High near 85. Breezy. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Breezy. Chance of precipitation is 70%.
Tuesday
A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. Breezy.
Tuesday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 51.
Wednesday
Mostly sunny, with a high near 68.
Wednesday Night
Partly cloudy, with a low around 47.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 49.
Friday
Mostly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Monmouth IL
 40.92°N 90.65°W (Elev. 751 ft)
Last Update:
2:21 am CDT May 16, 2026
Forecast Valid:
2am CDT May 16, 2026-6pm CDT May 22, 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