Climate and monthly weather forecastFoster, IN

Climate and monthly weather forecast

Weather in January

January, like December, is another subzero cold winter month in Foster, Indiana, with an average temperature varying between 31.6°F (-0.2°C) and 20.5°F (-6.4°C). The coldest period is January, when temperatures fluctuate between an average high of 31.6°F (-0.2°C) and a low of 20.5°F (-6.4°C). Weather in January »

Weather in February

The last month of the winter, February, is a cold month in Foster, Indiana, with an average temperature ranging between min 23.9°F (-4.5°C) and max 37°F (2.8°C). February introduces a minor temperature shift, with average high-temperatures adjusting from January's freezing cold 31.6°F (-0.2°C) to a wintry 37°F (2.8°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Foster, Indiana, with temperature in the range of an average low of 34.9°F (1.6°C) and an average high of 49.1°F (9.5°C). March's onset brings a rise in the average high-temperature, moving from a wintry 37°F (2.8°C) in February to a chilly 49.1°F (9.5°C). Weather in March »

Weather in April

April in Foster, Indiana, is a comfortable spring month, with an average temperature ranging between max 61.2°F (16.2°C) and min 45°F (7.2°C). An increase in the average high-temperature marks April, moving from March's frosty 49.1°F (9.5°C) to a refreshing 61.2°F (16.2°C). Weather in April »

Weather in May

May, the last month of the spring in Foster, is a pleasant month, with an average temperature ranging between min 55°F (12.8°C) and max 71.8°F (22.1°C). Noticing a change, the average high-temperature during May moves from April's enjoyable 61.2°F (16.2°C) to an agreeable 71.8°F (22.1°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Foster, Indiana, with temperature in the range of an average high of 79.9°F (26.6°C) and an average low of 63.3°F (17.4°C). The arrival of June signals a slight increase in the average high-temperature, moving from an agreeable 71.8°F (22.1°C) in May to a moderately hot 79.9°F (26.6°C). Weather in June »

Weather in July

July, like June, in Foster, Indiana, is another warm summer month, with an average temperature varying between 64.9°F (18.3°C) and 81.3°F (27.4°C). July is the warmest month, with the temperature often reaching an average high of 81.3°F (27.4°C) and an average low of 64.9°F (18.3°C). The average heat index in July is estimated at a hot 87.8°F (31°C). Weather in July »

Weather in August

August, the last month of the summer in Foster, is also a moderately hot month, with an average temperature fluctuating between 80.6°F (27°C) and 63.3°F (17.4°C). Foster records an average high-temperature of a still warm 80.6°F (27°C) in August, maintaining a close correlation with July's 81.3°F (27.4°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Foster, Indiana, with an average temperature varying between 57.7°F (14.3°C) and 76.1°F (24.5°C). A minimal variation is noted in Foster's average high-temperature at the onset of September, reaching a still moderately hot 76.1°F (24.5°C) from August's 80.6°F (27°C). Weather in September »

Weather in October

October, like September, in Foster, Indiana, is another refreshing autumn month, with an average temperature varying between 63.1°F (17.3°C) and 47.1°F (8.4°C). As September transitions into October, Foster sees a drop in the average high-temperature, transitioning from a moderately hot 76.1°F (24.5°C) to a comfortable 63.1°F (17.3°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Foster, Indiana, with temperature in the range of an average high of 48.9°F (9.4°C) and an average low of 35.6°F (2°C). With the onset of November, Foster experiences a modest temperature adjustment, with the average high-temperature receding from a comfortable 63.1°F (17.3°C) in October to a chilly 48.9°F (9.4°C). Weather in November »

Weather in December

December, the first month of the winter in Foster, is also an icy month, with an average temperature varying between 27.5°F (-2.5°C) and 37.6°F (3.1°C). Foster's December weather comes with a decrease in average high-temperatures, moving from a chilly 48.9°F (9.4°C) in November to an icy 37.6°F (3.1°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

January is the month when Foster, Indiana, sees the average lowest temperatures, with a high of 31.6°F (-0.2°C) and a low of 20.5°F (-6.4°C).

In Foster, Indiana, during the entire year, the rain falls for 151.8 days and collects up to 25.63" (651mm) of precipitation.

Months with snowfall are January through April, November and December.

In Foster, Indiana, during the entire year, snow falls for 35.2 days and aggregates up to 8.82" (224mm) of snow.

With an average of 4h of sunshine, January has the least sunshine of the year in Foster.

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Foster, Indiana.

The months with the least rainfall are February and September Rain falls for 6.6 days and accumulates 1.38" (35mm) of rain.

February is the month with the most snowfall in Foster. Snow falls for 8.9 days and accumulates 2.64" (67mm) of snow.

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Foster, Indiana, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

April is the month with the most rainfall. Rain falls for 15.3 days and accumulates 3.23" (82mm) of precipitation.

May through October are months without snowfall.

June has the longest days of the year in Foster, Indiana, with an average of 15h and 0min of daylight.

With an average of 10.1h of sunshine, June has the most sunshine of the year.

The months with the highest UV index in Foster are June through August, with an average maximum UV index of 6.

July proves to be the warmest month, recording an average peak temperature of 81.3°F (27.4°C) and a minimum temperature of 64.9°F (18.3°C).

July is the most humid month in Foster, with an average relative humidity of 84%.

The least humid month is October, with an average relative humidity of 72%.

With an average of 9h and 24min of daylight, December has the shortest days of the year.

Average temperature
Foster, IN

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.6°F).

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

Average pressure
Foster, IN

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
Foster, IN

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity
Foster, IN

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall
Foster, IN

The wettest month (with the highest rainfall) is April (3.23").
The driest months (with the least rainfall) are February and September (1.38").

Average rainfall days
Foster, IN

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (6.6 days).

Average snowfall
Foster, IN

The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Foster, IN

The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Foster, IN

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days
Foster, IN

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (9.5 days).

Average UV index
Foster, IN

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover
Foster, IN

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are June, August and September (Cloud cover 32).

Average visibility
Foster, IN

The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).