County Forecast for Spencer , IA
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201300-
Clay-
Including the city of Spencer
1243 AM CDT Fri Jun 20 2025

...EXTREME HEAT WARNING IN EFFECT FROM NOON TODAY TO 9 PM CDT
SUNDAY...

Rest of tonight   Mostly cloudy with a chance of showers and thunderstorms. Warmer with lows in the upper 60s. South winds around 15 mph with gusts up to 30 mph. Chance of rain 50 percent.
Friday   Sunny, hot with highs in the mid 90s. South winds 15 to 20 mph. Gusts up to 35 mph in the afternoon. Heat index values up to 106 in the afternoon.
Friday night   Mostly clear and breezy with lows in the mid 70s. South winds 20 to 25 mph with gusts up to 40 mph. Heat index values up to 105 early in the evening.
Saturday   Sunny, breezy, hot with highs in the upper 90s. South winds 20 to 25 mph with gusts up to 40 mph. Heat index values up to 108 in the afternoon.
Saturday night   Mostly clear and breezy with lows in the mid 70s. South winds 20 to 25 mph with gusts up to 35 mph. Heat index values up to 107 early in the evening.
Sunday   Sunny, windy, hot with highs in the upper 90s. Heat index values up to 105 in the afternoon.
Sunday night   Mostly clear in the evening, then becoming partly cloudy. A chance of showers and thunderstorms. Breezy with lows in the upper 60s. Chance of rain 50 percent. Heat index values up to 105 early in the evening.
Monday   Partly sunny. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Not as warm with highs in the mid 80s. Chance of rain 70 percent.
Monday night   A chance of thunderstorms. Showers, cooler with lows in the upper 50s. Chance of rain 80 percent.
Tuesday   Showers. A chance of thunderstorms in the afternoon. Not as warm with highs in the mid 70s. Chance of rain 80 percent.
Tuesday night   Showers with a chance of thunderstorms. Lows in the lower 60s. Chance of rain 90 percent.
Wednesday   Showers with a chance of thunderstorms. Highs in the lower 80s. Chance of rain 90 percent.
Wednesday night   A chance of thunderstorms in the evening. Showers likely. Lows in the lower 60s. Chance of rain 70 percent.
Thursday   Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 50 percent.
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DTN Weather Summary

Bryce Anderson image
Bryce Anderson – DTN Meteorologist
System Moving to East Coast Thursday, Northern Disturbances Continue Rain
Posted at 12:07PM Wed Jun 18, 2025 CDT
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