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Roberts, ID Weather
Roberts, Idaho sits at 43.7205, -112.1289. Its warmest month is July, when the day usually reaches 87F, and its coldest is January, when the night usually falls to 12F. April is the wettest, with rain on about 9 days. The hottest day in the station record is 102F on June 25, 1988, and the coldest night -38F on February 1, 1985. This page carries live conditions, an hour by hour timeline, a ten day outlook, radar, monthly averages and searchable daily history back to 1940.
About Roberts weather
Roberts sits at 43.7205, -112.1289 and covers about 0.314 square miles. The forecast above is live: current conditions lead with the HRRR model, corrected against the nearest reporting station and against radar overhead, because a model can lag a storm and the radar cannot.
The tabs at the top of this page carry the hour by hour timeline, the ten day outlook and live radar. Where the models disagree about a day, the rock says so on the day rather than quietly picking a winner.
The rock grades itself against what actually happened and publishes the result whether it flatters it or not. Those standings live in the Receipts.
Where these numbers come from
Current conditions and forecast: NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
Radar: NOAA MRMS merged reflectivity, rendered into tiles by myweatherrock.
Monthly averages and records: computed by myweatherrock from NOAA GHCN-Daily station records at the nearest qualifying station, named on this page with its distance. Measurements, not estimates.
Daily history search: the town's own NOAA GHCN-Daily station file, held on our server, measurements by day. Months the station missed fall back to the Open-Meteo historical archive (reanalysis), and the page says so when it does.
What the weather is usually like in Roberts
Roberts is warmest in July, when the day usually reaches 87F, and coldest in January, when the night usually falls to 12F. April is the wettest month, with rain on about 9 days of it.
Usual high and low, by month
Days with rain, by month
The same year as numbers
Month
Usual high
Usual low
Rain days
Snow days
January
29F
12F
8
1
February
34F
16F
7
1
March
47F
26F
7
0
April
58F
32F
9
0
May
68F
39F
9
0
June
76F
45F
7
0
July
87F
50F
4
0
August
86F
48F
5
0
September
75F
40F
5
0
October
60F
31F
6
0
November
43F
22F
7
1
December
31F
14F
9
1
Thirty-year normals, 1991 to 2020, computed from the daily record, measured at the Idaho Falls Faa Ap station 14.2 miles away. A rain day means at least a hundredth of an inch fell, the same measurable-precipitation mark the Weather Service uses. Source: computed from the station record, NOAA GHCN daily.
Roberts weather history, back to 1940
Pick any month back to 1940 and see what the archive holds for Roberts: the reanalysis record of what happened, day by day.
Reading this month last year to start you off.
Roberts weather records
In 95,428 days of observations Roberts has been as hot as 102F and as cold as -38F. Not averages: the actual days.
Hottest day
102F
June 25, 1988
Coldest night
-38F
February 1, 1985
Wettest day
1.73 in
May 6, 1993
Biggest snow
12.5 in
April 16, 2002
NOAA GHCN daily station records, observed 1948 to 2025: temperature at the Idaho Falls Faa Ap station, 14.2 miles away; snowfall at the Idaho Falls - Kifi station, 15.4 miles away. Station measurements, not estimates. Record dates reflect the station's own observation schedule, and the official state record may live at a different station.
Common questions about Roberts weather
Common questions
What is the weather usually like in Roberts, ID?
Roberts is warmest in July, when the day usually reaches 87F, and coldest in January, when the night usually falls to 12F. Rain falls on roughly 83 days a year, most often in April. Averages are thirty-year normals, 1991 to 2020, computed from the nearest NOAA station's own daily record.
How much does it rain in Roberts, ID?
About 83 days a year see at least a hundredth of an inch, which is the Weather Service's measurable-precipitation mark. April is the wettest month with rain on about 9 of its days, and July the driest with about 4.
Does it snow in Roberts, ID?
Yes. Snow falls on about 4 days a year, most often in January, which averages about 1 snowy days. Those are days with measurable snowfall, not days with snow lying on the ground.
What is the hottest it has ever been in Roberts, ID?
The hottest day measured for Roberts reached 102F on June 25, 1988, and the coldest night -38F on February 1, 1985. Both are real NOAA station measurements from the GHCN daily archive, observed 1948 to 2025, at the Idaho Falls Faa Ap station. Not estimates, though the official state record may live at a different station.
Can I look up past weather for Roberts, ID?
Yes, and for free. The History tab on this page takes any month back to 1940 and shows every day of it: the high, the low, what fell, and that month's hottest and coldest day. No account and no payment.
Is the Roberts forecast on this page free, and does it track me?
It is free, carries no advertising, and needs no account. Nothing about a visitor leaves the device except the coordinates needed to fetch a forecast, and those are not stored against anyone.