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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Dubuque Regional Airport (KDBQ)

Lat: 42.4°NLon: 90.71°WElev: 1040ft.

Thunderstorm in Vicinity

61°F

16°C

Humidity 93%
Wind Speed E 17 G 30 mph
Barometer 30.01 in (1015.9 mb)
Dewpoint 59°F (15°C)
Visibility 8.00 mi
Last update 19 Sep 2:53 am CDT
Extended Forecast for

Galena IL

Flood Watch September 19, 03:25am until September 20, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch September 19, 03:25am until September 20, 07:00am

    NOW until 7:00am Sun

    Flood Watch

  • Overnight

    Low: 63 °F

    T-storms and
    Patchy Fog

  • Saturday

    Saturday: Showers and thunderstorms before 2pm, then showers and possibly a thunderstorm, mainly after 2pm. Patchy fog before 9am. High near 77. South wind around 10 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 77 °F

    T-storms and
    Patchy Fog
    then Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms between midnight and 4am, then a chance of showers after 4am. Patchy fog after 5am. Low around 61. South wind 5 to 10 mph becoming north in the evening. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    Low: 61 °F

    Showers then
    Chance
    T-storms and
    Patchy Fog

  • Sunday

    Sunday: A 50 percent chance of showers before 10am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 68. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 68 °F

    Chance
    Showers and
    Patchy Fog
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 64.

    High: 64 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm, then occasional showers and thunderstorms after 4am. Patchy fog after 4am. Low around 63. East wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers and thunderstorms before 2pm, then showers and possibly a thunderstorm, mainly after 2pm. Patchy fog before 9am. High near 77. South wind around 10 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Saturday Night
Showers and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms between midnight and 4am, then a chance of showers after 4am. Patchy fog after 5am. Low around 61. South wind 5 to 10 mph becoming north in the evening. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Sunday
A 50 percent chance of showers before 10am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 68. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 54.
Monday
A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 64.
Monday Night
Mostly cloudy, with a low around 49.
Tuesday
Partly sunny, with a high near 63.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 67.
Thursday Night
Partly cloudy, with a low around 51.
Friday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Galena IL
 42.4°N 90.44°W (Elev. 751 ft)
Last Update:
1:51 am CDT Sep 19, 2026
Forecast Valid:
3am CDT Sep 19, 2026-6pm CDT Sep 25, 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