Weather in Jefferson County, Iowa for June 2026
Flood Warning - See hour by hour.
So far, June 2026 in Jefferson County is slightly warmer than the historical average by 1.6 °F.
Expect cooler weather in the next days in Jefferson County with the forecast suggesting a temperature of 24.2 °F, lower than the historical average.
In general, the average temperature in Jefferson County at the beginning of June is 27.1 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 29.3 °F by the end of June.
The climate of Jefferson County in June is notably wet, with an average of 11 rainy days, and a total of 483.1 mm of precipitation.
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Jefferson County Weather June
Temperatures trend during June in Jefferson County
June weather in Jefferson County day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jun. 1 | Sunny | 27° /14° | 0.8 mm | 9 | |
| Jun. 2 | Sunny | 30° /15° | 0 mm | 10 | |
| Jun. 3 | Moderate or heavy rain shower | 28° /15° | 14.1 mm | 9 | |
| Jun. 4 | Light rain | 27° /13° | 7.6 mm | 8 | |
| Jun. 5 | Mist | 26° /17° | 56.1 mm | 6 | |
| Jun. 6 | Overcast | 28° /18° | 1 mm | 9 | |
| Jun. 7 | Moderate or heavy rain shower | 24° /18° | 11.7 mm | 8 | |
| Jun. 8 | Moderate or heavy rain shower | 24° /15° | 11.2 mm | 6 | |
| Jun. 9 | Sunny | 28° /16° | 1.9 mm | 9 | |
| Jun. 10 | Cloudy | 28° /16° | 16.3 mm | 8 | |
| Jun. 11 | Partly cloudy | 33° /15° | 0 mm | 8 | |
| Jun. 12 | Sunny | 27° /14° | 0 mm | 9.4 | |
| Jun. 13 | Patchy rain possible | 27° /16° | 1 mm | 9.2 | |
| Jun. 14 | Patchy rain possible | 21° /11° | 0.4 mm | 8.9 | |
| Jun. 15 | Sunny | 20° /10° | 0 mm | 0.4 | |
| Jun. 16 | Patchy rain possible | 24° /12° | 1.8 mm | 4 | |
| Jun. 17 | Sunny | 26° /14° | 0 mm | 6 | |
| Jun. 18 | Patchy rain possible | 27° /20° | 1.4 mm | 5 | |
| Jun. 19 | Patchy rain possible | 23° /16° | 0.4 mm | 4 | |
| Jun. 20 | Moderate rain | 25° /16° | 12.2 mm | 5 | |
| Jun. 21 | Sunny | 22° /13° | 0 mm | 5 | |
| Jun. 22 | Patchy rain possible | 16° /15° | 1.3 mm | 4 | |
| Jun. 23 | Patchy rain possible | 26° /18° | 1.5 mm | 5 | |
| Jun. 24 | Patchy rain possible | 28° /21° | 3.2 mm | 5 | |
| Jun. 25 | Patchy rain possible | 27° /21° | 2.6 mm | 5 | |
| Jun. 26 | Thundery outbreaks possible | 32° /22° | 183.1 mm | 7 | |
| Jun. 27 | Moderate or heavy rain shower | 27° /20° | 70.6 mm | 6 | |
| Jun. 28 | Thundery outbreaks possible | 32° /20° | 0 mm | 7 | |
| Jun. 29 | Thundery outbreaks possible | 30° /20° | 0 mm | 7 | |
| Jun. 30 | Moderate rain | 29° /18° | 13 mm | 6 | |
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Jefferson County in June - FAQ
What are the expected maximum and minimum temperatures in Jefferson County during June?
How much rainfall should be expected in Jefferson County during June?
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June rainfall patterns in Jefferson County
UV exposure in Jefferson County during June
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