National Weather Service Forecast for: Mankato MN
Issued by: National Weather Service Twin Cities/Chanhassen, MN
Updated: 2:01 pm CDT Jul 16, 2026
 
This
Afternoon
This Afternoon: Patchy smoke. Mostly sunny and hot, with a high near 93. Heat index values as high as 97. Calm wind becoming south around 5 mph.
Patchy Smoke

 Tonight

Tonight: Patchy smoke. Mostly clear, with a low around 71. Calm wind becoming south around 5 mph after midnight.
Patchy Smoke

 Friday

Friday: Patchy smoke before 11am. Sunny and hot, with a high near 95. Heat index values as high as 99. Southwest wind 5 to 10 mph.
Patchy Smoke
then Sunny
 Friday
Night
Friday Night: Patchy smoke between midnight and 3am. Mostly clear, with a low around 72. Southwest wind around 5 mph becoming north northwest after midnight.
Mostly Clear
then Patchy
Smoke
 Saturday

Saturday: Sunny, with a high near 90. North wind 5 to 10 mph.
Sunny

 Saturday
Night
Saturday Night: Mostly clear, with a low around 66. North wind around 5 mph becoming calm in the evening.
Mostly Clear

 Sunday

Sunday: Mostly sunny, with a high near 92. Calm wind becoming south around 5 mph in the morning.
Mostly Sunny

 Sunday
Night
Sunday Night: A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 73. South wind 10 to 15 mph.
Mostly Cloudy
then Chance
T-storms
 Monday

Monday: A 20 percent chance of showers before 1pm. Mostly sunny and hot, with a high near 94. Southwest wind 10 to 15 mph becoming northwest in the afternoon.
Slight Chance
Showers
Hi 93 °F Lo 71 °F Hi 95 °F Lo 72 °F Hi 90 °F Lo 66 °F Hi 92 °F Lo 73 °F Hi 94 °F

Hazardous Weather Outlook
Air Quality Alert
 

This Afternoon
 
 Patchy smoke. Mostly sunny and hot, with a high near 93. Heat index values as high as 97. Calm wind becoming south around 5 mph.
Tonight
 
 Patchy smoke. Mostly clear, with a low around 71. Calm wind becoming south around 5 mph after midnight.
Friday
 
 Patchy smoke before 11am. Sunny and hot, with a high near 95. Heat index values as high as 99. Southwest wind 5 to 10 mph.
Friday Night
 
 Patchy smoke between midnight and 3am. Mostly clear, with a low around 72. Southwest wind around 5 mph becoming north northwest after midnight.
Saturday
 
 Sunny, with a high near 90. North wind 5 to 10 mph.
Saturday Night
 
 Mostly clear, with a low around 66. North wind around 5 mph becoming calm in the evening.
Sunday
 
 Mostly sunny, with a high near 92. Calm wind becoming south around 5 mph in the morning.
Sunday Night
 
 A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 73. South wind 10 to 15 mph.
Monday
 
 A 20 percent chance of showers before 1pm. Mostly sunny and hot, with a high near 94. Southwest wind 10 to 15 mph becoming northwest in the afternoon.
Monday Night
 
 Mostly clear, with a low around 68. North wind 10 to 15 mph.
Tuesday
 
 Sunny, with a high near 86. North northwest wind 10 to 15 mph.
Tuesday Night
 
 Partly cloudy, with a low around 63. North wind 5 to 10 mph becoming east after midnight.
Wednesday
 
 Mostly sunny, with a high near 85. East northeast wind around 5 mph becoming south in the afternoon.

 

Forecast from NOAA-NWS for Mankato MN.