Weather WorldUpper Big Nemaha Reservoir J-12a, NE 7-Day Night Weather Forecast
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Upper Big Nemaha Reservoir J-12a, NE Weather Forecast
Upper Big Nemaha Reservoir J-12a, NE Weather Forecast Date: 1057 PM CDT Sat Aug 15 2026
The area/counties/county of: Johnson, including the cities of: Tecumseh and Sterling.or toggle through each period.
Rest of Tonight... Mostly cloudy. A slight chance of showers and thunderstorms late this evening, then a chance of showers and thunderstorms. Lows in the upper 60s. North winds around 5 mph. Chance of rain 50%.
Sunday... Mostly cloudy with a chance of showers and thunderstorms in the morning, then partly sunny in the afternoon. Humid with highs around 80. North winds 5 to 10 mph. Chance of rain 50%.
Sunday Night... Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the lower 60s. North winds 5 to 10 mph in the evening, becoming light and variable.
Monday... Mostly sunny. Humid with highs in the mid 80s. Southwest winds around 5 mph.
Monday Night... Mostly clear in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Humid with lows in the upper 60s. South winds around 5 mph. Chance of rain 20%.
Tuesday... Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 50%.
Tuesday Night... Becoming mostly cloudy after midnight. A chance of thunderstorms. Showers likely, mainly in the evening. Lows in the upper 60s. Chance of rain 60%.
Wednesday... Mostly cloudy with a slight chance of showers and thunderstorms in the morning, then partly sunny in the afternoon. Highs in the upper 70s. Chance of rain 20%.
Wednesday Night... Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 60s.
Thursday... Mostly cloudy in the morning, then becoming mostly sunny. Highs around 80.
Thursday Night... Partly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the lower 60s. Chance of rain 30%.
Friday... Partly sunny in the morning, then clearing. Highs in the lower 80s.
Friday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 60s.
POP = Probability of Precipitation
Upper Big Nemaha Reservoir J-12a Radar Loop
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