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Mercer County (Princeton)
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United States weather

10 day weather forecast for Mercer County

Thursday, November 5th, 2026, at 08:45 PM
Today
Light rain
23° 15°
Tomorrow
Moderate rain
20° 14°
Saturday
Sunny
15° 7°
Sunday
Sunny
16° 7°
Monday
Sunny
14° 8°
Tuesday
Partly cloudy
17° 6°
Wednesday
Partly cloudy
16° 7°
 More Details See
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Mercer County Weather Pages

Mercer County weather forecast

The weather forecast for Mercer County over the next 2 days indicates wet and rainy conditions with temperatures ranging from 20 °C to 23 °C.

Rain is expected from today until tomorrow.

Wind speeds are expected to be strong, averaging around 21.2 km/h.

On Saturday, expect a change in weather with temperatures reaching 15°C.

Weather today

Mercer County 14 days weather forecast

This weeks weather in Mercer County. Click on a date for detailed forecasts
Thu. 5
23°
15°
Light rain
2.8 mm
Fri. 6
20°
14°
Moderate rain
14.7 mm
Sat. 7
15°
7°
Sunny
0 mm
Sun. 8
16°
7°
Sunny
0 mm
Mon. 9
14°
8°
Sunny
0 mm
Tue. 10
17°
6°
Partly cloudy
0 mm
Wed. 11
16°
7°
Partly cloudy
0 mm
Thu. 12
13°
6°
Overcast
0 mm
Fri. 13
10°
6°
Light rain
4.8 mm
Sat. 14
8°
3°
Partly cloudy
0.1 mm
Sun. 15
8°
1°
Partly cloudy
0 mm
Mon. 16
12°
5°
Sunny
0 mm
Tue. 17
9°
3°
Partly cloudy
0 mm
Wed. 18
12°
1°
Sunny
0 mm
Further Ahead
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Access Mercer County weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
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Mercer County long range weather forecast

30 day weather forecast for Mercer County
October
December
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Patchy rain possible
16°
2
Overcast
16°
3
Overcast
15°
4
Overcast
16°
5
Light rain
23°
6
Moderate rain
20°
7
Sunny
15°
8
Sunny
16°
9
Sunny
14°
10
Partly cloudy
17°
11
Partly cloudy
16°
12
Overcast
13°
13
Light rain
10°
14
Partly cloudy
8°
15
Partly cloudy
8°
16
Sunny
12°
17
Partly cloudy
9°
18
Sunny
12°
19
Light rain
10°
20
Light rain
9°
21
Heavy rain
10°
22
Light rain
7°
23
Overcast
8°
24
Partly cloudy
10°
25
Patchy rain possible
10°
26
Moderate or heavy rain with thunder
15°
27
Patchy rain possible
8°
28
Moderate rain
6°
29
Partly cloudy
6°
30
Moderate rain
6°
Important Notice
Our Mercer County long range weather forecast is based on historical data analysis rather than real-time forecasting models. While this provides a general outlook, weather conditions can change. We recommend checking the forecast closer to your planned date for the most current information.

Rain Forecast for the Next 14 Days in Mercer County

A total of 22.4 mm is expected over 3 rainy days. The wettest day is tomorrow, with 14.7 mm. Click a day for details.
Thu. 5
2.8
2.8 mm
79%
Fri. 6
14.7
14.7 mm
89%
Sat. 7
0 mm
6%
Sun. 8
0 mm
6%
Mon. 9
0 mm
4%
Tue. 10
0 mm
7%
Wed. 11
0 mm
9%
Thu. 12
0 mm
17%
Fri. 13
4.8
4.8 mm
78%
Sat. 14
0.1
0.1 mm
17%
Sun. 15
0 mm
8%
Mon. 16
0 mm
6%
Tue. 17
0 mm
4%
Wed. 18
0 mm
7%

Frequently asked questions about the weather in Mercer County

How warm is it in Mercer County over the next 14 days?
Over the next two weeks, temperatures in Mercer County are expected to range from around 1 °C on the coldest nights up to about 23 °C on the warmest days. Use this range to plan what to pack and wear.

Will it rain in Mercer County in the next two weeks?
Yes - rain is expected on about 3 of the next 14 days in Mercer County, with roughly 22.4 mm of rainfall in total. It is worth keeping an umbrella or raincoat handy.

How windy is it in Mercer County?
Maximum wind speeds in Mercer County are forecast to reach about 25.9 km/h at their peak over the next 14 days.

When is the best time to visit Mercer County?
For a month-by-month look at temperatures and rainfall, see our best time to visit Mercer County guide.

How accurate is the 14-day forecast for Mercer County?
Our Mercer County forecast uses leading meteorological models and is most reliable over the next few days. Long-range days beyond a week show general trends and can change, so check back closer to the date for updates.
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