The Met Office is predicting light snow in Oxford from 9pm tonight with temperatures falling to -1C.
Forecasters say Sunday and Monday will be cloudy, but only light snow flurries until the early hours of Monday are likely.
Snow will start falling earlier in the west of the county, and visibility may be poor this evening.
But forecasters say there is still a moderate risk of more severe weather, and ungritted roads will still be icy across the county.
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