Minnesota · NWS MPX office

Cottage Grove, MN weather

It is 55°F and cloudy at South St. Paul Municipal-Richard E. Flemi as of Oct 28, 3:55 AM CDT. Overnight: Areas Of Fog, low near 50°F, 15% chance of precipitation. Forecast from the National Weather Service, issued Oct 28, 2:16 AM CDT.

Updated Oct 28, 4:22 AM CDT (snapshot)

Current conditions

Temperature

55°F

Cloudy

Wind

Calm

Humidity 93% · dew point 53°F

Pressure · visibility

30.05 inHg

Visibility 10 mi

Observed at South St. Paul Municipal-Richard E. Flemi (KSGS), Oct 28, 3:55 AM CDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the Cottage Grove forecast zone right now.

Around the NWS MPX forecast area

No active alerts in zones served by the MPX office near Cottage Grove.

From the alert snapshot of Oct 28, 2026, 5:12 AM EDT. No alerts are active anywhere in Minnesota.

For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.

Next 24 hours

Hourly forecast for Cottage Grove (local time)
TimeTempForecastPrecip. chanceWind
Wed 4 AM52°FPatchy Fog15% 0 mph
Wed 5 AM52°FPatchy Fog13% 0 mph
Wed 6 AM51°FPatchy Fog13% 0 mph
Wed 7 AM51°FPatchy Fog13% 0 mph
Wed 8 AM52°FPatchy Fog11%SSE 5 mph
Wed 9 AM54°FMostly Cloudy10%SSE 5 mph
Wed 10 AM59°FMostly Cloudy12%SSE 5 mph
Wed 11 AM62°FMostly Cloudy13%SSE 10 mph
Wed 12 PM64°FSlight Chance Rain Showers23%SSE 10 mph
Wed 1 PM67°FChance Showers And Thunderstorms35%SSE 10 mph
Wed 2 PM68°FChance Showers And Thunderstorms38%S 10 mph
Wed 3 PM69°FChance Showers And Thunderstorms41%S 10 mph
Wed 4 PM69°FShowers And Thunderstorms Likely57%S 10 mph
Wed 5 PM68°FShowers And Thunderstorms Likely73%S 10 mph
Wed 6 PM67°FShowers And Thunderstorms87%S 10 mph
Wed 7 PM65°FShowers And Thunderstorms83%SSW 10 mph
Wed 8 PM61°FShowers And Thunderstorms Likely73%SW 10 mph
Wed 9 PM61°FChance Showers And Thunderstorms49%WSW 10 mph
Wed 10 PM60°FMostly Cloudy7%W 10 mph
Wed 11 PM59°FMostly Cloudy5%WNW 10 mph
Thu 12 AM57°FMostly Cloudy4%WNW 5 mph
Thu 1 AM55°FPartly Cloudy1%NW 10 mph
Thu 2 AM53°FPartly Cloudy1%NW 5 mph
Thu 3 AM51°FPartly Cloudy0%NW 5 mph

Hourly values come from the NWS gridded forecast for the 2.5 km grid square that covers the city's center point. Conditions elsewhere in Cottage Grove can differ.

7-day forecast

Overnight

Low 50°F

Areas of fog and a slight chance of rain showers. Cloudy, with a low around 50. South wind around 0 mph. Chance of precipitation is 20%.

Wednesday

High 70°F·Low 44°F

Areas of fog before 9am, then a slight chance of rain showers between noon and 1pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 70. South southeast wind 0 to 10 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.

Wednesday Night: Showers and thunderstorms before 9pm, then a chance of showers and thunderstorms between 9pm and 10pm, then patchy fog. Mostly cloudy, with a low around 44. West southwest wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.

Thursday

High 60°F·Low 39°F

Patchy fog before 9am. Sunny, with a high near 60. West northwest wind 5 to 10 mph.

Thursday Night: Areas of fog after 3am. Mostly clear, with a low around 39. North northeast wind 0 to 5 mph.

Friday

High 59°F·Low 41°F

Areas of fog before 9am. Mostly sunny, with a high near 59. East southeast wind 0 to 5 mph.

Friday Night: Mostly cloudy, with a low around 41. East wind 0 to 5 mph.

Saturday

High 59°F·Low 48°F

A chance of rain showers after 7am. Mostly cloudy, with a high near 59. East southeast wind around 5 mph. Chance of precipitation is 30%.

Saturday Night: A chance of rain showers. Mostly cloudy, with a low around 48. Southeast wind 0 to 5 mph. Chance of precipitation is 30%.

Sunday

High 64°F·Low 51°F

A slight chance of rain showers before noon. Mostly cloudy, with a high near 64. Southeast wind 0 to 5 mph. Chance of precipitation is 20%.

Sunday Night: Mostly cloudy, with a low around 51. East southeast wind around 5 mph.

Monday

High 63°F·Low 50°F

A chance of rain showers. Mostly cloudy, with a high near 63. East wind 5 to 10 mph. Chance of precipitation is 40%.

Monday Night: A chance of rain showers. Mostly cloudy, with a low around 50. East wind around 10 mph. Chance of precipitation is 50%.

Tuesday

High 59°F

A chance of rain showers. Mostly cloudy, with a high near 59. Northeast wind 10 to 15 mph. Chance of precipitation is 50%.

Nearby cities

Larger cities in the area

Other cities in Washington County

See every city we cover in Minnesota, or check all active alerts.

About this forecast

Forecast office
Cottage Grove is served by the National Weather Service MPX forecast office, forecast zone MNZ063, county zone MNC163.
Location used
The Census Bureau's internal point for Cottage Grove (44.8133, -92.9143), in Washington County. Population: 42,760 (2024 estimate), number 24 of the 61 Minnesota cities on this site.
Radar
Nearest NWS radar: KMPX. View it on radar.weather.gov.

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Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/44.8133,-92.9143 (forecast issued Oct 28, 2:16 AM CDT).
  • Official forecast page: forecast.weather.gov.
  • City location and population: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer files.
  • Snapshot taken Oct 28, 2026. The NWS and Census Bureau do not endorse OpenForecast.

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